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ORCIDHiroshi Hirayama
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2020 – today
- 2024
[j17]Kozaburo Tanahashi, Hiroshi Hirayama:
RF-DC conversion circuit using quadrature hybrid for complex maximum power point tracking. IEICE Electron. Express 21(5): 20240043 (2024)- 2021
- [j16]Takase Oshima, Shunya Ban, Hiroshi Hirayama:
Microstrip patch antenna with class-F load and DC block function for microwave power transfer. IEICE Electron. Express 18(15): 20210264 (2021)
2010 – 2019
- 2018
- [j15]Hidenori Ogata, Hiroshi Hirayama:
Numerical integration based on hyperfunction theory. J. Comput. Appl. Math. 327: 243-259 (2018) - 2017
- [j14]Han-Joon Kim
, Hiroshi Hirayama, Sanghoek Kim, Ki Jin Han, Rui Zhang, Ji-Woong Choi:
Review of Near-Field Wireless Power and Communication for Biomedical Applications. IEEE Access 5: 21264-21285 (2017) - 2013
- [j13]Hiroshi Hirayama, Tomohiro Amano, Nobuyoshi Kikuma, Kunio Sakakibara:
An Investigation on Self-Resonant and Capacitor-Loaded Helical Antennas for Coupled-Resonant Wireless Power Transfer. IEICE Trans. Commun. 96-B(10): 2431-2439 (2013) - 2012
- [j12]Shintaro Yano, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama:
Millimeter-Wave Microstrip-Line-Fed Broadband Waveguide Aperture Antennas. IEICE Trans. Commun. 95-B(1): 34-40 (2012) - [j11]Atsushi Kunita, Kunio Sakakibara, Kazuyuki Seo, Nobuyoshi Kikuma, Hiroshi Hirayama:
Broadband Millimeter-Wave Microstrip Comb-Line Antenna Using Corporate Feeding System with Center-Connecting. IEICE Trans. Commun. 95-B(1): 41-50 (2012) - [j10]Shunsuke Yoshimura, Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara:
Automated Creation of Beamformer-Based Optimum DOA Estimation Algorithm Using Genetic Algorithm. IEICE Trans. Commun. 95-B(10): 3332-3336 (2012) - 2011
- [j9]Hiroshi Hirayama, Gen Matsui, Nobuyoshi Kikuma, Kunio Sakakibara:
Channel Capacity Improvement in Short-Range MIMO Using Side and Back Reflectors. IEICE Trans. Commun. 94-B(5): 1280-1283 (2011) - 2010
- [j8]Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara:
An Estimation Method of Poynting Vector with Near-Magnetic-Field Measurement. IEICE Trans. Electron. 93-C(1): 66-73 (2010) - [j7]Yuki Ikeno, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama:
Narrow-Wall-Slotted Hollow-Waveguide Array Antenna Using Partially Parallel Feeding System in Millimeter-Wave Band. IEICE Trans. Commun. 93-B(10): 2545-2553 (2010) - [j6]Morihiko Nanjo, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama:
Control of Power Dividing Ratio in Four-Way Power Divider for Feeding Microstrip Comb-Line Antenna. IEICE Trans. Commun. 93-B(10): 2651-2654 (2010) - [j5]Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara:
A New Scheme to Avoid Null Zone for HF-Band RFID with Diversity Combining of Loop Antennas. IEICE Trans. Commun. 93-B(10): 2666-2669 (2010)
2000 – 2009
- 2009
- [j4]Kazuoki Matsugatani, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama:
Microstrip patch array antenna coupled with parasitic patches using one dimensional EBG structures. IEICE Electron. Express 6(13): 949-954 (2009) - [j3]Hiroshi Hirayama, Toshiyuki Ozawa, Yosuke Hiraiwa, Nobuyoshi Kikuma, Kunio Sakakibara:
A consideration of electro-magnetic-resonant coupling mode in wireless power transmission. IEICE Electron. Express 6(19): 1421-1425 (2009) - 2008
- [j2]Kazuoki Matsugatani, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama:
Broadband Planar Antenna Combining Monopole Element with Electromagnetic Bandgap. IEICE Trans. Electron. 91-C(11): 1778-1785 (2008) - 2007
- [j1]Yusuke Deguchi, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama:
Design and Optimization of Millimeter-Wave Microstrip-to-Waveguide Transition Operating over Broad Frequency Bandwidth. IEICE Trans. Electron. 90-C(1): 157-164 (2007)
Coauthor Index
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