Hiroshi Hirayama

Publication Activity (10 Years)

Years Active: 2007-2024
Publications (10 Years): 4

Top Topics

Limited Bandwidth

Numerical Integration

Top Venues

IEICE Electron. Express

J. Comput. Appl. Math.

Publications

Kozaburo Tanahashi, Hiroshi Hirayama
RF-DC conversion circuit using quadrature hybrid for complex maximum power point tracking. IEICE Electron. Express 21 (5) (2024)
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) (2021)
Hidenori Ogata, Hiroshi Hirayama
Numerical integration based on hyperfunction theory. J. Comput. Appl. Math. 327 (2018)
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 (2017)
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. (10) (2013)
Shintaro Yano, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama
Millimeter-Wave Microstrip-Line-Fed Broadband Waveguide Aperture Antennas. IEICE Trans. Commun. (1) (2012)
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. (1) (2012)
Shunsuke Yoshimura, Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara
Automated Creation of Beamformer-Based Optimum DOA Estimation Algorithm Using Genetic Algorithm. IEICE Trans. Commun. (10) (2012)
Hiroshi Hirayama, Gen Matsui, Nobuyoshi Kikuma, Kunio Sakakibara
Channel Capacity Improvement in Short-Range MIMO Using Side and Back Reflectors. IEICE Trans. Commun. (5) (2011)
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. (10) (2010)
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. (10) (2010)
Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara
An Estimation Method of Poynting Vector with Near-Magnetic-Field Measurement. IEICE Trans. Electron. (1) (2010)
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. (10) (2010)
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) (2009)
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) (2009)
Kazuoki Matsugatani, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama
Broadband Planar Antenna Combining Monopole Element with Electromagnetic Bandgap. IEICE Trans. Electron. (11) (2008)
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. (1) (2007)