Publications

AY2026

Papers

  1. Y. Hashimoto, Y. Maeda, T. Sasaki, and R. Suga, "A Novel Broadband Radio Wave Absorber Using Periodic Dielectric Cuboid Array," IEICE Trans. Commun., vol. E110-B, no. 1, pp. XXX-XXX, Jan. 2027.
  2. T. Watanabe and R. Suga, "Novel Non-destructive Evaluation of Corrosion on Rebar Embedded in Mortar Wall Using 10-GHz Doppler Sensor," IEEE Trans. Radar Syst. (to be published)
  3. K. Tomizawa, R. Okuda, Y. Hashimoto, E. Hashimoto, R. Kojima, T. Watanabe, R. Suga, and S. Koh, "Flexible transparent electromagnetic interference shield using p-type doped three-layer stacked graphene on PET," Jpn. J. Appl. Phys., vol. 65, no. 8, May 2026.

International Conferences

  1. K. Nashimoto, and R. Suga, "Analytical study on a single-layer dual-polarized active frequency selective surface with reflection/transmission response inversion," Asia-Pacific Microw. Conf., Nov. 2026. (to be presented)
  2. R. Takao, T. Watanabe, and R. Suga, "Equivalent Circuit Modeling of Loop-Type Chipless RFID Tags," IEICE GlobalNet Workshop 2026. (to be presented)
  3. T. Koyama, and R. Suga, "A Study on an Approximation Formula for the Effective Complex Relative Permittivity of Resin Containing Conductors," IEICE GlobalNet Workshop 2026. (to be presented)

AY2025

Papers

  1. R. Suga, S. Oshino, and K. Araki, "Scattering parameter estimation of patch array wave absorber at arbitrary polarizations and incident angles," IEICE Trans. Electron., vol. E109-C, no. 11, pp. XXX-XXX, Nov. 2026.
  2. R. Suga, T. Takahashi, and K. Araki, "A design method of circular patch array absorber based on superposition principle," IEICE Trans. Electron., vol. E109-C, no. 11, pp. XXX-XXX, Nov. 2026.
  3. T. Endo, K. Yamaguchi, M. Hanazawa, T. Hayashi, Y. Homma, R. Suga, O. Hashimoto, "A study on radio-wave propagation estimation using a radio-wave characteristics database of building materials for beam-type wireless power transfer — Verification of simulation accuracy for an actual office-building model," IEICE Trans. (C), vol. J109-C, no. 7, pp. 166-175, July 2026. (in Japanese)
  4. H. Takeuchi, K. Tayama, O. Amano, M. Kunita, R. Suga, "A millimeter-wave-band radio wave absorber using bioplastic," IEICE Trans. (C), vol. J109-C, no. 7, pp. 191-193, July 2026. (in Japanese)
  5. Y. Masuko, T. Endo, K. Yamaguchi, O. Hashimoto, R. Suga, "Characterization of architectural glass in the 24 GHz band using the free-space method," Journal of Environmental Engineering (AIJ), vol.90, no.835, pp.412-418, Sep. 2025.
  6. A. Tsuchiya, Y. Yamaguchi, R. Suga, M. Takeda, E. Inami, H. Sugama, and O. Hashimoto, "Balanced Microstrip Line with Defected Ground Structure on Thin Flexible Substrate Film," IEICE Commun. Express, pp. 138-141, Mar. 2026.

International Conferences

  1. Y. Hashimoto, Y. Maeda, T. Sasaki, R. Suga, "Novel Design of a Broadband Radio Wave Absorber Using Periodic Dielectric Cuboid Arrays," Asia-Pacific Microw. Conf. 2025, P2-057, pp.1285-1287, Dec. 2025.
  2. T. Yamazaki, R. Suga, "A Study on Boiling Process Detection of Water Using 24 GHz FMCW Radar," Asia-Pacific Microw. Conf. 2025, TF4-3, pp.512-514, Dec. 2025.
  3. T. Watanabe, R. Suga, "Improvement of Dynamic Range Applying the Brewster Angle for Corrosion Evaluation on Rebar Using Doppler Sensors at 10 GHz," Asia-Pacific Microw. Conf. 2025, WG1-5, pp.88-90, Dec. 2025.
  4. K. Tomizawa, R. Okuda, Y. Hashimoto, T. Watanabe, R. Suga and S. Koh, "Electromagn. interference shielding property of p-type doped three-layer stacked graphene on PET," Microprocesses and Nanotechnol. Conf. 2025, Nov. 2025.
  5. T. Ohwada, S. Yamazaki, M. Mizuno, R. Suga, and T. Nagaoka, "Development of Epidermis-equivalent Phantom in THz Frequency Region for Exposure Assessment," Int. Conf. on Emerging Technol. for Communications 2025, P1-12, Nov. 2025.
  6. Y. Morohoshi, R. Hanan, R. Suga, and T. Nagaoka, "Frequency Bandwidth Analysis of Low-loss Phantom for Absorbed Power Density Assessment in 28/40 GHz Bands," BioEM 2025, PA/FA-11, June 2025.
  7. R. Okuda, K. Niwano, N. Oota, K. Tomizawa, Y. Shinada, R. Suga, T. Watanabe and S. Koh, "Electromagnetic Interference Shielding Property of Carrier-Doped Transparent Graphene," 2025 Asia-Pacific Int. Symp. and Exhibition on Electromagn. Compat., 1571102818, May 2025.

AY2024

Papers

  1. R. Okuda, K. Niwano, N. Oota, K. Tomizawa, Y. Shinada, R. Suga, T. Watanabe, and S. Koh, "Electromagn. Interference Shielding Property of p-Doped Graphene with Large Area and High Optical Transparency Characterized through Free-Space Measurement," ACS Applied Eng. Mater., vol.3, no. 4, pp.857-866, Mar. 2025.
  2. S. Kuromatsu, T. Watanabe, Y. Nonoguchi, R. Suga and S. Koh, "Single-wall carbon nanotubes-based flexible monopole antenna with high radiation efficiency," Eng. Research Express, 6, 045367, Dec. 2024.
  3. R. Kumagai, R. Suga, and T. Uwano, "Single-Layer Circular Polarizer for Linear Polarized Horn Antenna," IEICE Trans. Electron., vol.E107-C, no.11, pp.479-485, Nov. 2024.
  4. D. Nishihara, K. Sasaki, R. H. B. M. Baharin, T. Nagaoka, O. Hashimoto, and R. Suga, "Development of measurement phantom for absorbed power density assessment by human exposure at 28 GHz band," IEEE J. Electromagn. RF, and Microwaves in Medicine and Biology, vol.9, no. 2, pp.191-197, June 2025.

International Conferences

  1. M. Hanazawa, S. Sakihara, K. Yamaguchi, T. Endo, Y. Masuko, R. Suga and O. Hashimoto, "Database construction and its method of building materials for coexistence study of beam type wireless power transfer systems," 13th Int. Conf. Renewable Energy Research and Applicat., PS1-6, Nov. 2024.
  2. Y. Hashimoto, Y. Maeda, T. Sasaki, R. Suga, "Design of Two-Layered Radio Wave Absorber Using Perforated Ceramics Surface Layer in Millimeter-Wave Band," Asia-Pacific Microw. Conf. 2024, TU-C5-4, Nov. 2024.
  3. Y. Masuko, T. Endo, K. Yamaguchi, O. Hashimoto, and R. Suga, "Characterization of Architectural Glasses by Free-Space Method in 24 GHz Band," EMC Japan/APEMC Okinawa 2024, TueAM1A.2, May 2024.
  4. K. Hasegawa, H. Sasaki, and R. Suga, "Study on Influence of Leakage Flux Dependence on Winding Position of Common-mode Choke Coil Using Toroidal Core," EMC Japan/APEMC Okinawa 2024, ThuAM2B.3, May 2024.
  5. T. Watanabe, R. Suga, "A Study on Detectable Conditions for Rusted Reinforcing Bar in Concrete Structure Using a 24-GHz Doppler Sensor," EMC Japan/APEMC Okinawa 2024, TuePMPo.3, May 2024.

AY2023

Papers

  1. O. Hashimoto, R. Suga, "Indoor/outdoor radio-wave environment in wireless power transfer and an ultra-thin radio wave absorber for improving it," IEICE Trans. (C), vol. J107-C, no.5, pp.183-191, May 2024. (in Japanese)
  2. Y. Horita, T. Fukase, H. Kisaka, S. Kuromatsu, Y. Sato, K. Endo, T. Watanabe, R. Suga, and S. Koh, "Fabrication of highly conductive polyester fabrics using single-wall carbon nanotubes inks for EMI shielding," Jpn J. Appl. Phys., 63, 04SP01, 2024.
  3. O. Hashimoto, R. Suga, "Efforts to improve the indoor radio-wave environment in wireless power transfer using an indoor radio wave absorber," IEICE Trans. (C), vol. J107-C, no.1, pp.2-8, Jan. 2024. (in Japanese)
  4. R. Suga, M. Watanabe, A. Kezuka, "Hybrid Electromagn. Simulation using 2D-FDTD and Ray-tracing Methods for Airport Surfaces," IEICE Trans. Electron., vol. E106-C, no. 11, pp. 774-779, Nov. 2023.
  5. A. Tsuchiya, Y. Yamaguchi, R. Suga, M. Takeda, E. Inami, H. Sugama, and O. Hashimoto, "A Low loss Microstrip Line on Thin Flexible Substrate film by Defected Ground Structure," IEICE Commun. Express, vol. 12, no. 11, pp. 582-585, 2023.
  6. R. Miyazaki, R. Suga, "A study on uniformizing the magnetic field inside a ferrite sheet attached to a microwave-oven grill plate using a quarter-wavelength resonator," IEICE Trans. (C), vol.J106-C, no.8, pp.334-335, Aug. 2023. (in Japanese)
  7. R. Okuda, K. Niwano, K. Hatada, K. Kokubu, R. Suga, T. Watanabe, and S. Koh, "Evaluation of transmission characteristics of CVD grown graphene and effect of tuning electrical properties of graphene up to 50 GHz," Scientific Reports, vol. 13, no. 13878, Aug. 2023.

International Conferences

  1. H. Kisaka, T. Watanabe, S. Kuromatsu, T. Watanabe, R. Suga, and S. Koh, "Chipless RFID Tags Fabricated by Screen Printing using SWCNT Ink," 2023 Asia-Pacific Microw. Conf., Dec. 2023.
  2. D. Imai, A. Tsuchiya, H. Sugama, O. Hashimoto, and R. Suga, "Measurement of Electric Field Distribution of Indoor Local 5G Using Visualization System Applying SDR Device," 2023 Asia-Pacific Microw. Conf., Dec. 2023.
  3. D. Imai, A. Tsuchiya, H. Sugama, O. Hashimoto, and R. Suga, "Electric field distribution measurement of indoor local 5G using SDR device," 5th Int. Workshop Photonics applied to Electromagn. Measurement, Nov. 2023.
  4. Y. Horita, T. Fukase, H. Kisaka, S. Kuromatsu, Y. Sato, K. Endo, T. Watanabe, R. Suga, and S. Koh, "Fabrication of Highly Conductive Polyester Fabrics using Single-Wall Carbon Nanotubes Inks for EMI Shielding," 36th Int. Microprocesses and Nanotechnol. Conf., Nov. 2023.
  5. D. Nishihara, T. Nagaoka, R. Hanan B. Mohd Baharin, K. Sasaki, R. Suga, and O. Hashimoto, "Absorbed Power Density Assessments for 28 GHz Human Exposure Using Inverse Source Technique; Cross-Comparison of Several Phantoms," XXXVth URSI General Assembly and Scientific Symp., P-KA-01, Aug. 2023.
  6. S. Kuromatsu, T. Watanabe, Y. Nonoguchi, R. Suga, O. Hashimoto, and S. Koh, "Evaluation of Radiation Efficiency of Single-Wall Carbon Nanotube-Based Flexible Antenna Using Wheeler Cap Method," Photonics & Electromagn.s Research Symp. 2023, July 2023.
  7. T. Watanabe, S. Hiraoka, O. Hashimoto, and R. Suga, "A Study on Detectable Diameter of a Metal Cylinder Embedded in Concrete Structures Using Doppler Sensors," Photonics & Electromagn.s Research Symp. 2023, July 2023.
  8. R. Okuda, K. Niwano, K. Hatada, K. Kokubu, R. Suga, S. Koh, "Characterization of Impedance and Physical Properties of CVD-grown Graphene up to 50 GHz," Photonics & Electromagn.s Research Symp. 2023, July 2023.

AY2022

Papers

  1. [Invited Paper] K. Yokota, R. Suga, O. Hashimoto, "Rust detection inside reinforced-concrete structures using the Doppler effect in the X band," IEICE Trans. (C), vol.J106-C, no.3, pp.99-104, Mar. 2023. (in Japanese)
  2. Y. Horita, S. Kuromatsu, T. Watanabe, R. Suga, and S. Koh, "Polydopamine-assisted dip-and-dry fabrication of highly conductive cotton fabrics using single-wall carbon nanotubes inks for flexible devices," Cellulose 30, 1971-1980 (2023).
  3. S. Koh, S. Kosuga, R. Suga, S. Nagata, S. Kuromatsu, T. Watanabe and O. Hashimoto, "Graphene transparent antennas," Carbon Reports, vol. 2, no. 1, pp. 23-30, 2023.
  4. S. Hisanaga, R. Suga, "Suppressing far-end crosstalk of an MSL by locally placing dielectric sheets," IEICE Trans. (B), vol.J106-B, no.6, pp.394-396, June 2023. (in Japanese)
  5. R. Suga, K. Yokota, O. Hashimoto, "Rust detection inside reinforced-concrete structures using the microwave Doppler effect," IEICE Trans. (B), vol. J105-B, no. 6, pp.493-495, June 2022. (in Japanese)

International Conferences

  1. S. Matsumoto, R. Suga, H. Hisanaga, S. Okamyo, H. Mouri, R. Sekihara, O. Hashimoto, and S. Koh, "Printed quarter-wavelength absorber using carbon nanotube ink," 2022 Asia-Pacific Microw. Conf., TH3-F5-3, pp. 429-430, Dec. 2022.
  2. R. Kumagai, S. Nakano, T. Uwano, and R. Suga, "Experimental study on circularly polarized horn antenna using parasitic element array," 2022 Asia-Pacific Microw. Conf., TH3-F3-5, pp. 405-407, Dec. 2022.
  3. S. Kuromatsu, T. Watanabe, Y. Nonoguchi, R. Suga, O. Hashimoto, and S. Koh, "Single-wall carbon nanotube-based flexible monopole antenna fabricated using poly (methyl methacrylate)-supported transfer technique," 2022 Asia-Pacific Microw. Conf., IF-C12, pp. 866-868, Dec. 2022.
  4. R. Suga, M. Watanabe, and A. Kezuka, "Hybrid Electromagn. Analysis Methods Suitable for Airport Surfaces in the VHF Band," 2022 Int. Workshop on Air Traffic Management, Commun., Navigation, and Surveillance, O1-3, pp.245-247, Oct. 2022.
  5. R. Hanan B. Mohd Baharin, D. Nishihara, K. Sasaki, R. Suga, O. Hashimoto, and T. Nagaoka, "A Novel Approach of Assessment of Absorbed Power Density Using Inverse Source Method for Human Exposure to 28 GHz Electromagn. Fields," 2022 URSI-Japan Radio Science Meeting, K2-2, Sep. 2022.
  6. S. Kuromatsu, T. Watanabe, R. Suga, Y. Nonoguchi, O. Hashimoto and S. Koh, "Fabrication of Single-Wall Carbon Nanotube Monopole Antenna Using Poly (methyl methacrylate)-Supported Transfer Technique, "the 15th Int. Conf. New Diamond and Nano Carbons", II-07-5, June 2022.

AY2021

Papers

  1. S. Matsumoto, R. Suga, K. Araki, O. Hashimoto, "Design of Ultra-Thin Wave Absorber with Square Patch Array Considering Electromagn. Coupling between Patch Arry and Back-Metal" IEICE Trans. Electron., vol.E104-C, no.12, pp.681-684, Dec. 2021.
  2. R. Suga, K. Oshima, T. Uwano, "A Simple and Compact Planar Balun with Slit Ground" IEICE Trans. Electron., vol.E104-C, no.11, pp.667-671, Nov. 2021.
  3. K. Sasaki, K. Kawabata, Y. Shimizu, S. Watanabe, K. Wake, R. Suga, O. Hashimoto, "Design of a Skin Equivalent Phantom for Estimating Surface Temperature Elevation Due to Human Exposure to Electromagn. Fields From 10 to 100 GHz" IEEE Trans. Electromagn. Compat., vol.63, no.5, pp.1631-1639, Oct. 2021.
  4. S. Kosuga, R. Suga, T. Watanabe, O. Hashimoto, S. Koh, "Characterization of contact properties at interface between metal and graphene up to 15 GHz" Eng. Reports, vol.3, no.5, May 2021.

AY2020

Papers

  1. S. Kosuga, S. Nagata, S. Kuromatsu, R. Suga, T. Watanabe, O. Hashimoto, and S. Koh, "Optically transparent antenna based on carrier-doped three-layer stacked graphene," AIP Advances, vol.11, no.035136, Mar. 2021.
  2. R. Suga, S. Kuroda, and A. Kezuka, "Measurement Validation of Hybrid Propagation Analysis Suitable for Airport Surface in VHF Band and Its Application to Realistic Situations, " IEICE Trans. Electron., vol.E103-C, no.11, pp.582-587, Nov. 2020.
  3. R. Suga and N. Saito, "Improvement on Uneven Heating in Microwave Oven by Diodes-Loaded Planar Electromagn. Field Stirrer, " IEICE Trans. Electron., vol.E103-C, no.9, pp.388-395, Sep. 2020.

International Conferences

  1. N. Fujita, A. Andrenko, Y. Shimizu, K. Wake, S. Watanabe, R. Suga, and O. Hashimoto, "SAR Evaluation for an RF WPT Array Antenna System in Indoor Environment, " Proc. of the XXXIIIrd URSI General Assembly in Rome, (virtual), DK1-02, Sep. 2020.
  2. S. Matsumoto, R. Suga, and O. Hashimoto, "Evaluation of Coupling between Resistive Patch Array and Back Metal of Ultra Thin Wave Absorber, " 33rd URSI GASS, 2020.

AY2019

Papers

  1. R. Suga, A. Kezuka, O. Hashimoto, "VHF-band hybrid radio-wave propagation analysis suitable for airport surfaces," IEICE Trans. (C), vol.J102-C, no.6, pp.198-204, June 2019. (in Japanese)

International Conferences

  1. S. Kuroda, R. Suga, A. Kezuka, and O. Hashimoto, "Proposal on Hybrid Propagation Analysis of Aperture Field Integration Method and Ray Tracing Method Suitable for Airport Surface in VHF Band, " 14th Eur. Conf. Antennas Propagat., (EuCAP 2020), Mar. 2020.
  2. S. Kosuga, R. Suga, T. Watanabe, O. Hashimoto, and S. Koh, "Contact Characteristics at the Interface between Metal and Graphene Up to 30 GHz," Joint Indo-Japanese Smart City Symp. 2019, Oct. 2019.
  3. E. Ideguchi, R. Suga, T. Uwano, and O. Hashimoto, "A Study on Shielding Factor of Copper Enclosure with Apertures and Cylinders in the kHz Band, " Joint Indo-Japanese Smart City Symp. 2019, Oct. 2019.
  4. N. Fujita, Andrey S. Andrenko, Y. Shimizu, K. Wake, S. Watanabe, and R. Suga, "A Study of SAR Evaluation in a Radiative WPT System with an Array Antenna, " 2019 URSI-Japan Radio Sci. Meeting, (URSI-JRSM 2019), Sep. 2019.
  5. R. Matsumoto, K. Li, K. Sasaki, S. Watanabe, K. Wake, and R. Suga, "A Preliminary Study on Assessment of Absorbed Power Density inside a Human Body Based on Measurement of Reflection of Electromagn. Wave, " 2019 URSI-Japan Radio Sci. Meeting, (URSI-JRSM 2019), Sep. 2019.
  6. K. Agari, K. Gotoh, Y. Matsumoto, R. Suga, and O. Hashimoto, "Comparison Between Impulsive Noise Models Considering a Time Structure of LED Noise, " European Conf. on Electromagn. Compat., (EMC Europe 2019), Sep. 2019.
  7. S. Kuroda, R. Suga, A. Kezuka, and O. Hashimoto, "Measurement Validation of Hybrid Electromagn. Field Analysis Method for Airport Surface including Slope Ground in VHF Band, " Progress in Electromagn.s Research Symp., (PIERS) 2019 in Rome, June 2019.
  8. H. Sakamoto, R. Suga, K. Araki, and O. Hashimoto, "Input Impedance Design of a Circular Patch Array Absorber Considering Perturbation Elements Position, " Progress in Electromagn.s Research Symp., (PIERS) 2019 in Rome, June 2019.
  9. S. Nishikawa, T. Nagaoka, S. Watanabe, R. Suga, K. Wake, and O. Hashimoto, "Characteristics of temperature rise in a human eyeball due to a dipole antenna in frequency range f rom 6 GHz to 30 GHz, " BioEM 2019, June 2019.

AY2018

Papers

  1. D. Kitahara, R. Suga, K. Araki, and O. Hashimoto, "Circular Patch Array Absorber Design for Oblique Incidence by Using Winding Ratio Model of Transformer," IEEE Trans. Electromagn. Compat., vol.61, no.1, pp.65-72, Feb. 2019.
  2. S. Kosuga, K. Suga, R. Suga, T. Watanabe, O. Hashimoto, and S. Koh, "Radiation Properties of Graphene-based Optically Transparent Dipole Antenna," Microw. and Optical Technol. Lett., vol.60, no.12, pp.2992-2998, Dec. 2018.
  3. R. Tani, I. Wu, K. Gotoh, Y. Matsumoto, S. Ishigami, R. Suga, and O. Hashimoto, "Characterization of AC/Coaxial Adapter for LISN Calibration Above 30 MHz Using Improved Equivalent Circuit Model, " IEEE Trans. Electromagn. Compat., vol.60, no.5, pp.1357-1365, Oct. 2018.
  4. R. Suga, T. Nakamura, D. Kitahara, K. Araki, and O. Hashimoto, "Winding Ratio Design of Transformer in Equivalent Circuit of Circular Patch Array Absorber," IEICE Trans. Electron., vol.E101-C, no.8, pp.651-654, Aug. 2018.
  5. Y. Otoi, R. Suga, T. Uwano, O. Hashimoto, "Improving the kHz-band magnetic-field shielding effect of a periodically perforated metal enclosure," IEICE Trans. (B), vol.J101-B, no.7, pp.539-545, July 2018. (in Japanese)
  6. R. Tani, I. Wu, K. Gotoh, Y. Matsumoto, S. Ishigami, R. Suga, and O. Hashimoto, "Comparative Analysis of Various AC/Coaxial Adapters for LISN Calibration up to 1 GHz, " IEICE Commun. Express, vol.7, no.6, pp.201-206, June 2018.
  7. R. Suga, H. Yoshiizumi, K. Araki, O. Hashimoto, "Design of a circular patch array radio wave absorber based on an equivalent circuit," IEICE Trans. (C), vol.J101-C, no.5, pp.225-232, May 2018. (in Japanese)
  8. Y. Nakamura, R. Suga, K. Araki, O. Hashimoto, "A 2.4 GHz-band circular patch array absorber with out-of-band transmissivity using an FSS," IEICE Trans. (C), vol.J101-C, no.5, pp.253-255, May 2018. (in Japanese)
  9. T. So, R. Suga, "A study on material-constant measurement of a high-permittivity material in the C band using a focusing metal-plate lens antenna," IEEJ Trans. (A), vol.138, no.5, pp.250-251, May 2018. (in Japanese)

International Conferences

  1. K. Li, K. Kawabata, K. Sasaki, R. Suga, S. Watanabe, and O. Hashimoto, "Estimation of Transmitted Power Density from Temperature Experiment for EMF Exposure Assessment at 60 GHz, " 2019 URSI Asia Pacific Radio Sci. Conf., PO-K-7, Mar. 2019.
  2. K. Kawabata, K. Sasaki, K. Li, R. Suga, S. Watanabe, and O. Hashimoto, "Design of Human-Skin Equivalent Phantom for Evaluating the Surface Temperature Elevation due to Millimeter Wave Exposure, " 2019 URSI Asia Pacific Radio Sci. Conf., PO-K-22, Mar. 2019.
  3. N. Saito, Y. Mizushima, R. Suga, and O. Hashimoto, "Experimental Evaluation of Uniform Heating of Object Arranged in Microwave Oven by Planar Electromagn. Stirrer, " Proc. of 2018 Asia-Pacific Microw. Conf., FR3-IF-49, (APMC 2018), Nov. 2018.
  4. S. Kosuga, K. Suga, R. Suga, T. Watanabe, O. Hashimoto, and S. Koh, "Radiation Characteristics of Optically Transparent Dipole Antenna Fabricated using CVD Monolayer Graphene, " Proc. of 2018 Asia-Pacific Microw. Conf., WE4-B1-1, Nov. 2018.
  5. R. Suga, "Fundamentals of radio wave absorber and its applications," The 6th Int. SmartCity Symp. 2018, Oct. 2018.
  6. S. Kosuga, K. Suga, Y. Abe, R. Suga, T. Watanabe, O. Hashimoto, and S. Koh, "Optically Transparent Dipole Antenna Based on CVD Monolayer Graphene, " The 6th Int. SmartCity Symp. 2018, Oct. 2018.
  7. K. Kawabata, K. Li, K. Sasaki, R. Suga, S. Watanabe, and O. Hashimoto, "Exposure Assessment of Surface Temperature Elevation at Millimeter Wave Frequencies using a Designed Phantom, " The 6th Int. SmartCity Symp. 2018, Oct. 2018.
  8. Y. Abe, S. Kuroda, R. Suga, S. Hirai, O. Hashimoto, and A. Kezuka, "Measurement Validation of Hybrid Electromagnetic Field Analysis Method for Airport Surface in VHF Band, " 2018 IEEE AP-S Symp. Antennas Propagat. and URSI CNC/USNC Joint Meeting, pp.155-156, July 2018.

AY2017

Papers

  1. D. Sakamoto, A. Tsuchiya, R. Suga, H. Sugama, and O. Hashimoto, "Wideband Shielding Effectiveness of Laminated Sheet using Copper and Magnetic Materials," IEICE Commun. Express, vol.7, no.3, pp.95-100, Mar. 2018.
  2. D. Kitahara, R. Suga, K. Araki, and O. Hashimoto, "A Cross Polarization Suppression of Circular Patch Array Absorber with Perturbation Elements, " IEICE Electronics Express, vol.15, no.2, pp.1-6, Jan. 2018.
  3. R. Suga, H. Saito, K. Araki, O. Hashimoto, "An analytical study on improving the indoor wireless-LAN communication environment using a dry double wall loaded with an FSS," IEICE Trans. (C), vol. J100-C, no. 12, pp. 585–588, Dec. 2017. (in Japanese)
  4. R. Tani, I. Wu, K. Gotoh, Y. Matsumoto, S. Ishigami, R. Suga, and O. Hashimoto, "Development of Circuit Model of AC/Coaxial Adapter Using for Calibration of AMN, " IEICE Commun. Express, vol.6, no.8, pp.478-483, Aug. 2017.
  5. S. Kosuga, R. Suga, O. Hashimoto, and S. Koh, "Graphene-based optically transparent dipole antenna, " Applied Physics Lett., vol.110, Issue 23, pp.233102-1-233102-3, June 2017.
  6. R. Kato, R. Suga, A. Kezuka, O. Hashimoto, "A proposed VHF-band airport-surface electromagnetic-field analysis method," IEICE Trans. (C), vol.J100-C, no.5, pp.236-238, May 2017. (in Japanese)

International Conferences

  1. Y. Maeda, R. Suga, T. Uwano, and O. Hashimoto, "A Study on Balance Characteristics of MSL Balun with Defected Ground Structure, " 2017 Korea-Japan Microw. Workshop, (KJMW2017), pp.27-28, Dec. 2017.
  2. Y. Otoi, R. Suga, T. Uwano, and O. Hashimoto, "Improvement on Magnetic Shielding Performance of Metal Plate with Apertures, " The 39th Progress In Electromagn.s Research Symp., (PIERS) in Singapore, p.439, Nov. 2017.
  3. R. Tani, I. Wu, K. Gotoh, Y. Matsumoto, S. Ishigami, R. Suga, and O. Hashimoto, "Proposal on Circuit Model of AC/Coaxial Adapter Using for AMN Calibration, " The 39th Progress In Electromagn.s Research Symp., (PIERS) in Singapore, p.649, Nov. 2017.
  4. T. Omatsuzawa, R. Suga, K. Araki, and O. Hashimoto, "A Study on Active Absorption Transmission Reflection FSS using Diodes, " The 39th Progress In Electromagn.s Research Symp., (PIERS) in Singapore, p.879, Nov. 2017.
  5. D. Kitahara, R. Suga, K. Araki, and O. Hashimoto, "A Study on Bandwidth Improvement of Circular Patch Array Absorber by Using Perturbation Elements, " The 39th Progress In Electromagn.s Research Symp., (PIERS) in Singapore, p.1107, Nov. 2017.
  6. Y. Abe, R. Suga, A. Kezuka, and O. Hashimoto, "Study on Focusing Property of Centrally Grooved Focusing Type Dielectric Lens Horn Antenna, " The 39th Progress In Electromagn.s Research Symp., (PIERS) in Singapore, p.1316, Nov. 2017.
  7. S. Kosuga, R. Suga, O. Hashimoto, S. Koh, "Microwave Radiation from Graphene-based Optically Transparent Dipole Antenna, " The 39th Progress In Electromagn.s Research Symp., (PIERS) in Singapore, pp.1388-1389, Nov. 2017.
  8. D. Sakamoto, A. Tsuchiya, R. Suga, H. Sugama, and O. Hashimoto, "A Study on Wideband Suppression of Noise Radiated from Switching Power Supply, " Proc. of the 2017 Int. Symp. on Electromagn. Compat., (EMC Europe), O_Tu_A1, Sep. 2017.
  9. R. Tani, I. Wu, K. Gotoh, Y. Matsumoto, S. Ishigami, R. Suga, and O. Hashimoto, "Characteristic Improvement on Conducted Disturbance Measuring Apparatus Using TEM Cells, " Proc. of the 2017 Int. Symp. on Electromagn. Compat., (EMC Europe), P1(2), Sep. 2017.
  10. R. Suga, Y. Abe, R. Kato, O. Hashimoto, and A. Kezuka, "A Study on Phase Improvement of Focusing Dielectric Lens Horn Antenna Using Dielectric Slab, " IEEE MTT-S Int. Conf. on Numerical Electromagn. and Multiphysics Modeling and Optimization for RF, Microw., and Terahertz Applicat., (NEMO2017), pp.34-36, May 2017.

AY2016

Papers

  1. K. Kanai, R. Suga, S. Azumi, T. Uwano, O. Hashimoto, Y. Hasegawa, "A basic study on a directional bow-tie antenna for EMI measurement," IEICE Trans. (B), vol.J100-B, no.2, pp.121-124, Feb. 2017. (in Japanese)
  2. K. Kanai, R. Suga, T. Uwano, O. Hashimoto, "A resonator with a slot structure having low radiation loss, and its application to a bandstop filter with a steep skirt characteristic," IEICE Trans. (C), vol.J99-C, no.12, pp.611-617, Dec. 2016. (in Japanese)
  3. K. Kuroda, R. Suga, T. Uwano, O. Hashimoto, "Cross-polarization suppression of a double-loop antenna by loading a slit," IEICE Trans. (B), vol.J99-B, no.11, pp.1045-1047, Nov. 2016. (in Japanese)
  4. S. Arai, A. Tsuchiya, R. Suga, H. Sugama, O. Hashimoto, "A simplified measurement method for the radiation-suppression ratio of a noise-suppression sheet using one-dimensional scanning of a receiving antenna," IEICE Trans. (B), vol.J99-B, no.8, pp.633-635, Aug. 2016. (in Japanese)
  5. S. Kitagawa, R. Suga, O. Hashimoto, and K. Araki, "Study on RCS Reduction of Patch Array Using Switchable Absorption/Transmission Surface, " IEICE Trans. Electron., vol.E99-C, no.7, pp.805-808, July 2016.
  6. N. Hidaka, H. Sugama, A. Tsuchiya, T. Ishida, and O. Hashimoto, "Relationship Between Directional Patterns and the Electrode Structure of the Log-periodic Dipole Antenna Arrays for Sensitive Optical Electric Field Sensors, " Microw. and Optical Technol. Lett., vol.58, no.9, pp.2124-2129, Sep. 2016.

International Conferences

  1. Y. Otoi、R. Suga、T. Uwano、and O. Hashimoto,, "Magnetic Shielding effect on Double-Layered Metal Plates with Periodically Arranged Apertures, " 5th Smart City Workshop, Mar. 2017.
  2. D. Kitahara, H. Yoshiizumi, R. Suga, O. Hashimoto, and K. Araki, "A Study of Design Method of Circular Patch Array Absorber for Oblique Incidence, " Proc. of the 46th Eur. Microw. Conf., (EuMC 2016), pp.329-332, Oct. 2016.
  3. M. Takeda, K. Kakizaki, R. Suga, O. Hashimoto, Y. Matsushita, M. Nishikori, K. Chikamatsu, K. Yamamoto, S. Yamagishi, Y. Kaneko, and K. Okuyama, "A Study on Roadside Antenna of Three Lanes MLFF-ETC Using Single Frequency, " 23rd World Congress on Intelligent Transport System, (ITS 2016), ITS-AP-TP0215, Oct. 2016.
  4. M. Nishikori, Y. Matsushita, K. Kakizaki, R. Suga, S. Yamagishi, and O. Hashimoto, "Evaluation of DSRC antenna for MLFF on toll road, " 23rd World Congress on Intelligent Transport System, (ITS 2016), AP-TP0210, Oct. 2016.
  5. R. Tani, I. Wu, S. Ishigami, Y. Matsumoto, R. Suga, and O. Hashimoto, "Characteristic Evaluation of Conducted Disturbance Measuring Apparatus Using Two Parallel TEM Cells, " Proc. of the 2016 Int. Symp. on Electromagn. Compat., (EMC Europe 2016), pp.440-444, Sep. 2016.
  6. R. Kato, R. Suga, A. Kezuka, and O. Hashimoto, "A Proposal of Electromagn. Field Analysis Method for Airport Surface in VHF Band, " 13th lnternational Workshop on Finite Elements for Microw. Eng., (FEM2016), pp.164-165, May 2016.

AY2015

Papers

  1. S. Yahagi, R. Suga, T. Uwano, O. Hashimoto, "Magnetic-field shielding effect of a metal enclosure in the kHz band," IEICE Trans. (B), vol.J99-B, no.3, pp.187-189, Mar. 2016. (in Japanese)
  2. S. Kitagawa, R. Suga, O. Hashimoto, K. Araki, "A switchable absorption/transmission radio-wave plate using diodes," IEICE Trans. (C), vol.J98-C, no.12, pp.338-347, Dec. 2015. (in Japanese)
  3. K. Sasaki, Y. Ishimura, K. Fujii, K. Wake, S. Watanabe, M. Kojima, R. Suga, and O. Hashimoto, "Dielectric Property Measurement of Ocular Tissues up to 110 GHz Using 1 mm Coaxial Sensor, " Physics in Medicine and Biology, vol.60, no.16, pp.6273-6288, Sep. 2015.
  4. T. Suzuki, R. Suga, R. Kuwabara, K. Kanae, O. Hashimoto, "A thin C-band radio wave absorber using a dielectric-loss material with a low loss-material content," IEICE Trans. (B), vol.J98-B, no.7, pp.742-743, July 2015. (in Japanese)
  5. S. Kitagawa, R. Suga, K. Araki, and O. Hashimoto, "Dual-polarization RCS Reduction of X-band Antenna Using Switchable Reflector, " IEICE Trans. Electron., vol.E98-C, no.7, pp.701-708, July 2015.

International Conferences

  1. K. Chikamatsu, K. Kakizaki, R. Suga, Y. Matsushita, S. Yamagishi, and O. Hashimoto, "Study on DSRC Antenna for Multi-lane Free-flow on Toll Roads, " 22nd World Congress and Exhibition on Intelligent Transport Systems and Services, AP-ITS-1715, Oct. 2015.
  2. H. Yoshiizumi, R. Suga, K. Araki, and O. Hashimoto, "A Design of Circular Patch Array Absorber Based on Patch Antenna Theory, " The 45th Eur. Microw. Conf., (EuMC 2015), pp.1100-1103, Sep. 2015.
  3. S. Kitagawa, R. Suga, K. Araki, and O. Hashimoto, "Active Absorption/Transmission FSS Using Diodes, " IEEE Int. Symp. on Electromagn. Compat. and EMC Europe, (EMC 2015), pp.1538-1541, Aug. 2015.
  4. S. Yahagi, R. Suga, T. Uwano, and O. Hashimoto, "Study on Magnetic Shielding Effect versus Metal Thickness and Aperture Size of Metal Case, " The 36th Progress In Electromagn.s Research Symp., (PIERS 2015 Prague), Draft Abstracts, p.1183, July 2015.
  5. R. Suga, T. Suzuki, T. Uwano, Y. Akatsuka, K. Ishii, and O. Hashimoto, "Conductor Loss Evaluation of Thin Microstrip Line with Various Copper Roughnesses, " The 36th Progress In Electromagn.s Research Symp., (PIERS 2015 Prague), Draft Abstracts, p.2029, July 2015.
  6. K. Kanai, M. Nagasawa, R. Suga, T. Yasuzumi, T. Uwano, O. Hashimoto, and Y. Hasegawa, "F/S Ratio Improvement of Directional Bow-tie Antenna with Parasitic Elements, " The 36th Progress In Electromagn.s Research Symp., (PIERS 2015 Prague), Draft Abstracts, pp.2137-2138, July 2015.
  7. H. Nedate, K. Wake, K. Sasaki, K. Fujii, S. Watanabe, R. Suga, and O. Hashimoto, "Dielectric Property of Biological Tissues Measured with High Speed Sampling System below 10 MHz, " The Annual Meeting of BioElectromagn. Society European BioElectromagn. Association, (BioEM 2015), Abstract Collection, pp.88-91, June 2015.
  8. K. Sasaki, Y. Ishimura, K. Fujii, K. Wake, S. Watanabe, R. Suga, and O. Hashimoto, "Development of a Dielectric Properties Measurement System Using a Coaxial Sensor for Biological Samples in Millimeter-wave Band, " The Annual Meeting of BioElectromagn. Society European BioElectromagn. Association, (BioEM2015), Abstract Collection, pp.214-216, June 2015.
  9. K. Kanai, M. Nagasawa, R. Suga, T. Yasuzumi, T. Uwano, O. Hashimoto, and Y. Hasegawa, "Improvement on Radiation Characteristics of Bow-tie Antenna for EMI Measurement, " The 9th Eur. Conf. Antennas Propagat., (EuCAP 2015), Apr. 2015.

AY2014

Papers

  1. R. Otomura, T. Suzuki, R. Suga, O. Hashimoto, "A design chart for a two-layer, wide-angle radio wave absorber," IEICE Trans. (C), vol.J97-C, no.12, pp.557-560, Dec. 2014. (in Japanese)
  2. S. Kitagawa, R. Suga, O. Hashimoto, "A study on the reflection-reduction effect of a switchable absorption/reflection plate applied to an X-band array antenna," IEICE Trans. (C), vol.J97-C, no.12, pp.542-548, Dec. 2014. (in Japanese)
  3. Y. Ishii, R. Suga, O. Hashimoto, T. Nishimura, "Microwave-band electrical-characteristics evaluation of a low-resistance conductive resin and its application to three-dimensional circuits," IEICE Trans. (C), vol.J97-C, no.8, pp.317-323, Aug. 2014. (in Japanese)
  4. S. Kitagawa, R. Suga, and O. Hashimoto, "A Switchable Microwave Reflector Using Pin Diodes, " IEICE Trans. Electron., vol.E97-C, no.7, pp.683-688, July 2014.
  5. H. Sato, Y. Tsuda, R. Suga, O. Hashimoto, "A susceptance-variable sheet composed of a resistive film and varactor diodes loaded between conductive lines," IEICE Trans. (C), vol.J97-C, no.5, pp.194-196, May 2014. (in Japanese)
  6. I. Inagi, R. Suga, O. Hashimoto, "A study on sidelobe suppression of a waveguide aperture antenna," IEICE Trans. (C), vol.J97-C, no.5, pp.243-245, May 2014. (in Japanese)

International Conferences

  1. S. Kitagawa, R. Suga, K. Araki, and O. Hashimoto, "Switchable Reflector for Dual-Polarized Antenna Radar Cross Section Reduction, " 2014 IEEE Int. Microw. and RF Conf., (IMaRC), T41B-03, pp.201-204, Dec. 2014.
  2. M. Nagasawa, Y. Kurosawa, R. Suga, O. Hashimoto, T. Yasuzumi, and Y. Hasegawa, "Downsizing of LPDA for Radiation EMI Measurement, " Proc. of Asia-Pacific Microw. Conf. 2014, WE1F-4, pp.82-84, Nov. 2014.
  3. S. Kuroda, R. Suga, T. Uwano, and O. Hashimoto, "Wide-Band Double Loop Antenna Fed by Modified Single Strip Line, " Proc. of Asia-Pacific Microw. Conf. 2014, TH3D-5, pp.625-627, Nov. 2014.
  4. S. Kitagawa, R. Suga, and O. Hashimoto, "Design of Dipole Antenna with Reflector for RCS Reduction Using Reradiation Interference Cancellation, " Proc. of Asia-Pacific Microw. Conf. 2014, FR3G-38, pp.1393-1395, Nov. 2014.
  5. K. Kakizaki, R. Suga, Y. Matsuda, Y. Matsushita, and O. Hashimoto, "A Study of Optimal DSRC Antenna for Multi-Lane Free-Flow, " 2014 World Congress on Intelligent Transport Systems, 13206, Sep. 2014.
  6. S. Kitagawa, R. Suga, and O. Hashimoto, "Switchable Reflector for Radar Cross Section Reduction of X-band Dipole Array, " 15th Int. Radar Symp., pp.420-423, June 2014.
  7. S. Kitagawa, R. Suga, and O. Hashimoto, "A Novel Switchable Reflector Applied to Antenna Reflector for Antenna Radar Cross Section Reduction, " 2014 IEEE Radar Conf., pp.800-802, May 2014.

AY2013

Papers

  1. K. Susaki, R. Suga, R. Kawase, J. Tanoi, O. Hashimoto, "A basic study on the design of a frequency-selective reinforced-concrete wall," IEICE Trans. (B), vol.J96-B, no.7, pp.720-728, July 2013. (in Japanese)
  2. R. Yoshiike, S. Azumi, R. Suga, M. Maeda, M. Uno, O. Hashimoto, "A method for estimating the absorption of a cap-type radio wave absorber for near fields," IEICE Trans. (C), vol.J96-C, no.6, pp.156-159, June 2013. (in Japanese)

International Conferences

  1. S. Kitagawa, R. Suga, and O. Hashimoto, "Electrically Switchable Reflector Implemented on Dielectric Substrate, " 2013 Thailand-Japan Microw., (TJMW2013), TU2-20, Dec. 2013.
  2. H. Sato, R. Suga, and O. Hashimoto, "A Study on Susceptance Tunable Sheet Using Resistive Film and Varactor Diode Loaded between Conductive Lines, " 2013 Thailand-Japan Microw., (TJMW2013), TU2-21, Dec. 2013.
  3. T. Suzuki, R. Suga, and O. Hashimoto, "Post-wall Waveguide Transmission Loss Depending on Thickness of Porous Substrates and Its Evaluation of Leakage, " 2013 Asia-Pacific Microw. Conf., pp.936-938, Nov. 2013.
  4. H. Onoue, N. Kamiya, R. Suga, and O. Hashimoto, "Broadband Metal-Plate Lens with Short Focal Length, " Proc. of the 43rd Eur. Microw. Conf., (EuMC 2013), pp.1675-1678, Oct. 2013.
  5. Y.She, R.Suga, H.Nakano, Y. Hirachi, J. Hirokawa and M. Ando, "Design of package cover for 60GHz small antenna and effects of device box on radiation performance," 2013 Int. Symp. on Antennas and Propagation, Oct. 2013.
  6. Y. She, R. Suga, H. Nakano, Y. Hirachi, J. Hirokawa, and M. Ando, "Loss evaluation of the 60-GHz small antenna in the package for wireless data-transfer systems," 2013 Int. Symp. on Electromagn. Theory, May 2013.

AY2012

Papers

  1. T. Yasuzumi, K. Takahashi, N. Sano, R. Suga, and O. Hashimoto, "Mutual Coupling Reduction between Closely-Placed MSAs for Bi-Static Radar Using Wave Absorber, " IEICE Trans. Electron., vol.E96-C, no.1, pp.77-83, Jan. 2013.
  2. T. Yasuzumi, S. Kato, Y. Ishii, R. Suga, and O. Hashimoto "Multi-Layered Translucent Wave Absorber Using Carbon Fibers and Applying to Portable Anechoic Chamber" IEICE Trans. Commun., vol.E95-B, no.12, pp.3830-3836, Dec. 2012.
  3. T. Fujita, S. Azumi, R. Suga, Y. Tsuda, O. Hashimoto, "Isotropization of an anisotropic radio wave absorber via alternating lamination," IEICE Trans. (C), vol.J95-C, no.12, pp.535-538, Dec. 2012. (in Japanese)
  4. R. Suga, S. Takano, T. Yasuzumi, T. Ijuin, T. Takatomi, and O. Hashimoto "Shape Measurement of Canned Food to Verify Hermetic Sealing" IEICE Trans. Electron., vol.E95-C, no.10, pp.1662-1665, Oct. 2012.
  5. T. Yasuzumi, N. Kamiya, R. Suga, O. Hashimoto, Y. Matsushita, and Y. Matsuda "Miniaturization of Parallel-Plate Lens Antenna for Evaluation of Wave Absorber Constructed on Ceiling of ETC Gate" IEICE Trans. Commun., vol.E95-B, no.10, pp.3225-3231, Oct. 2012.
  6. K. Saito, R. Suga, Y. Wakabayashi, T. Shiomi, M. Oide, O. Hashimoto, "An analytical study on the wall reflection characteristics required for in-tunnel ETC," IEICE Trans. (B), vol.J95-B, no.6, pp.769-773, June 2012. (in Japanese)

International Conferences

  1. N. Kamiya, T. Yasuzumi, R. Suga, O. Hashimoto, Y. Matsushita, and Y. Matsuda "Positional Dependence on Primary Radiator of Metal Plate Lens Antenna," Proc. of APMC 2012, pp.1010-1012, Dec. 2012.
  2. T. Fujita, T. Yasuzumi, Y. Tsuda, R. Suga, O. Hashimoto, T. Wano, and Y. Fukuda "Alternate Lamination of High Dielectric Materials for Super Thin Wave Absorber," Proc. of the 42nd Eur. Microw. Conf., (EuMC 2012), pp.1166-1169, Oct. 2012.
  3. J. Hirokawa, J. Asano, M. Ando, R. Suga, H. Nakano, and Y. Hirachi "Antenna on a Thick Resin Layer of a Silicon Chip and a Slab Antenna Fed by Post-Wall Waveguide" 2012 IEEE Asia-Pacific Conf. on Antennas and Propagation, WE1A-1, Aug. 2012.

AY2011

Papers

  1. R. Suga, H. Nakano, Y. Hirachi, J. Hirokawa, and M. Ando, "A Small Package with 46-dB Isolation between Tx and Rx Antennas Suitable for 60-GHz WPAN Module," IEEE Trans. Microw. Theory Tech., vol.60, no.3, pp.640-646, Mar. 2012.

International Conferences

  1. R. Yoshiike, T. Yasuzumi, H. Terasaki, R. Suga, Y. Maeda, M. Uno, and O. Hashimoto "Near-field Characteristics Evaluation for Wave Absorber, " The 2011 Korea-Japan Microw. Conf., (KJMW2011), FR2-5-5, Nov. 2011.
  2. R. Suga, H. Nakano, Y. Hirachi, J. Hirokawa, and M. Ando, "Millimeter-wave Antenna with High-isolation Using Slab Waveguide for WPAN Applications, " Proc. of The 41st Eur. Microw. Conf., pp.543-546, Oct. 2011.
  3. H. Nakano, R. Suga, Y. Hirachi, J. Hirokawa, and M. Ando, "60-GHz Post-Wall Waveguide Aperture Antenna with Directors Made by Multilayer PCB Process," Eur. Conf. Antennas Propagat. 2011, EuMC32-4, Apr. 2011.

AY2010

Papers

  1. H. Nakano, R. Suga, Y. Hirachi, J. Hirokawa, M. Ando, "A post-wall waveguide aperture antenna for a millimeter-wave file-transfer system," IEICE Trans. (C), vol.J93-C, no.12, pp.597-603, Dec. 2010. (in Japanese)
  2. R. Suga, H. Nakano, Y. Hirachi, J. Hirokawa, and M. Ando, "Cost-Effective 60-GHz Antenna-Package with End-Fire Radiation for Wireless File-Transfer System," IEEE Trans. Microw. Theory Tech., vol.58, no.12, pp.3989-3995, Dec. 2010.

International Conferences

  1. R. Suga, H. Nakano, Y. Hirachi, J. Hirokawa, and M. Ando, "Cost-Effective 60-GHz Surface-mount Antenna-package for Wireless File-Transfer System," Asia-Pacific Microw. Conf. 2010, CA13-2, Dec. 2010.
  2. R. Suga, H. Nakano, Y. Hirachi, J. Hirokawa, and M. Ando, "Cost-Effective 60-GHz Antenna-Package with End-Fire Radiation from Open-Ended Post-Wall Waveguide for Wireless File-Transfer System," IEEE Int. Microw. Symp. 2010, TH3F-3, pp.449-452, May 2010.

AY2009

Papers

  1. [Invited Paper] O. Hashimoto, R. Suga, "Research on uniform microwave heating of food," IEICE Trans. (C), vol.J92-C, no.12, pp.754-761, Dec. 2009. (in Japanese)

International Conferences

  1. R. Suga, H. Nakano, Y. Hirachi, J. Hirokawa, and M. Ando, "Lateral Radiation Millimeter-Wave Antenna Package Using Post-Wall Waveguide," Int. Symp. on Antennas and Propagat. 2009, WE1C-1, June 2009.

AY2008

Papers

  1. R. Suga, O. Hashimoto, T. Ijuin, T. Takatomi, "A Study on Uniform Microwave Heating of Food by Arranging Dielectric Material," Japan Journal of Food Engineering, vol.9, no.4, pp.311-315, Dec. 2008.
  2. R. Suga, O. Hashimoto, T. Ijuin, T. Takatomi, "A study on uniform microwave heating of solid, high-viscosity foods," IEEJ Trans. (C), vol.128-C, no.8, pp.1271-1276, Aug. 2008. (in Japanese)
  3. T. Ijuin, R. Suga, O. Hashimoto, T. Takatomi, "An experimental study on uniform food heating combining steam and microwaves," IEICE Trans. (C), vol.J11-C, no.7, pp.390-391, July 2008. (in Japanese)

International Conferences

  1. K. Kimishima, J. Hirokawa, R. Suga, H. Nakano, Y. Hirachi, and M. Ando, "Feasibility Study of a Millimeter-Wave Antenna on a Thick Resin Layer on the Back Side of a Silicon CMOS Chip," Int. Symp. on Antennas and Propagat. 2008, Session: 311.6, Oct. 2008.

AY2007

Papers

  1. R. Suga, O. Hashimoto, T. Ijuin, T. Takatomi, "Short-time analysis of the absorbed-power distribution inside food placed in an industrial microwave oven," IEICE Trans. (C), vol.J91-C, no.3, pp.229-230, Mar. 2008. (in Japanese)
  2. R. Suga, O. Hashimoto, T. Ijuin, T. Takatomi, "Reduction of Uneven Heating of a Food in an Industrial Microwave Oven by Means of Circular Polarized Wave," Japan Journal of Food Engineering, vol.8, no.4, pp.281-285, Dec. 2007.

AY2006

Papers

  1. R. Suga, T. Ijuin, O. Hashimoto, T. Takatomi, and S. Watanabe "Analytical Study on Uneven Heating Relaxation of Food Inside Industrial Microwave Oven by Means of Water Film" Microw. and Optical Technol. Lett., vol.49, no.3, pp.518-521, Mar. 2007.

International Conferences

  1. R. Suga, T. Ijuin, O. Hashimoto, T. Takatomi, and S. Watanabe "Analytical Study on Reduction Uneven Heating of Food inside Industrial Microwave Oven by Using of Water Film" 23rd Annual Review of Progress in Applied Computational Electromagn. pp.1167-1171, Mar. 2007.

AY2005

Papers

  1. R. Suga, T. Takatomi, T. Ijuin, O. Hashimoto, S. Watanabe, A. Watanabe, "Fundamental Study on Uniform Sterilization of Foods by Using Microwave Heating," Japan Journal of Food Engineering, vol.7, no.1, pp.25-30, Mar. 2006.
  2. R. Suga, O. Hashimoto, R.K. Pokharel, K. Wada, and S. Watanabe "Analytical Study on Change of Temperature and Absorption Characteristics of a Single-Layer Radiowave Absorber to Irradiation Electric Power" IEEE Trans. Electromagn. Compat., vol.47, no.4, pp.866-871, Nov. 2005.
  3. R. Suga, O. Hashimoto, "Temperature-distribution analysis of an FRP-type radio wave absorber," IEICE Trans. (B), vol.J88-B, no.4, pp.824-826, Apr. 2005. (in Japanese)

International Conferences

  1. R. Suga, O. Hashimoto, T. Takatomi, T. Ijuin, and S. Watanabe "Basic Study on Relaxation of Uneven Heating in an Industrial Microwave Oven," Progress in Electromagn.s Research Symp. 2006, p.80, Mar. 2006.

AY2004

Papers

  1. S. Watanabe, K. Wada, R. Suga and O. Hashimoto, "Characteristics of tunable half-wavelength resonators with attenuation poles", Microw. Opt. Tech. Lett., vol.45, no.1, pp.8-12, Feb. 2005.
  2. K. Wada, S. Watanabe, R. Suga, and O. Hashimoto "Bandpass Filters Using Tunable Half-Wavelength Resonators with Transmission Zeros" IEICE Trans. Electron., vol.E88-C, no.1, pp.68-76, Jan. 2005.
  3. M. Kato, R. Suga, O. Hashimoto, T. Nakamura, and K. Wada, "Analytical Study on Variation of Temperature and Absorption Characteristics of Single-Layer Radiowave Absorber by Irradiation Electric Power," Microw. and Optical Technol. Lett., vol.41, no.1, pp.3-5, Apr. 2004.

International Conferences

  1. R. Suga, O. Hashimoto, Y. Nikawa, and K. Wada, "Analytical Study on Change of Temperature and Absorption Characteristics of Single-layer Radiowave Absorber to Irradiation Electric Power," 2004 China-Japan Joint Meeting on Microwaves, pp.235-238, Aug. 2004.