Hiroshi Hirayama

According to our database, Hiroshi Hirayama authored at least 16 papers between 2007 and 2021.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2021

Microstrip patch antenna with class-F load and DC block function for microwave power transfer.

Takase Oshima, Shunya Ban, Hiroshi Hirayama

IEICE Electron. Express, 2021

2018

Numerical integration based on hyperfunction theory.

Hidenori Ogata, Hiroshi Hirayama

J. Comput. Appl. Math., 2018

2017

Review of Near-Field Wireless Power and Communication for Biomedical Applications.

Han-Joon Kim, Hiroshi Hirayama, Sanghoek Kim, Ki Jin Han, Rui Zhang, Ji-Woong Choi

IEEE Access, 2017

2013

An Investigation on Self-Resonant and Capacitor-Loaded Helical Antennas for Coupled-Resonant Wireless Power Transfer.

Hiroshi Hirayama, Tomohiro Amano, Nobuyoshi Kikuma, Kunio Sakakibara

IEICE Trans. Commun., 2013

2012

Automated Creation of Beamformer-Based Optimum DOA Estimation Algorithm Using Genetic Algorithm.

Shunsuke Yoshimura, Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara

IEICE Trans. Commun., 2012

Millimeter-Wave Microstrip-Line-Fed Broadband Waveguide Aperture Antennas.

Shintaro Yano, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama

IEICE Trans. Commun., 2012

Broadband Millimeter-Wave Microstrip Comb-Line Antenna Using Corporate Feeding System with Center-Connecting.

Atsushi Kunita, Kunio Sakakibara, Kazuyuki Seo, Nobuyoshi Kikuma, Hiroshi Hirayama

IEICE Trans. Commun., 2012

2011

Channel Capacity Improvement in Short-Range MIMO Using Side and Back Reflectors.

Hiroshi Hirayama, Gen Matsui, Nobuyoshi Kikuma, Kunio Sakakibara

IEICE Trans. Commun., 2011

2010

Control of Power Dividing Ratio in Four-Way Power Divider for Feeding Microstrip Comb-Line Antenna.

Morihiko Nanjo, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama

IEICE Trans. Commun., 2010

Narrow-Wall-Slotted Hollow-Waveguide Array Antenna Using Partially Parallel Feeding System in Millimeter-Wave Band.

Yuki Ikeno, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama

IEICE Trans. Commun., 2010

An Estimation Method of Poynting Vector with Near-Magnetic-Field Measurement.

Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara

IEICE Trans. Electron., 2010

A New Scheme to Avoid Null Zone for HF-Band RFID with Diversity Combining of Loop Antennas.

Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara

IEICE Trans. Commun., 2010

2009

Microstrip patch array antenna coupled with parasitic patches using one dimensional EBG structures.

Kazuoki Matsugatani, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama

IEICE Electron. Express, 2009

A consideration of electro-magnetic-resonant coupling mode in wireless power transmission.

Hiroshi Hirayama, Toshiyuki Ozawa, Yosuke Hiraiwa, Nobuyoshi Kikuma, Kunio Sakakibara

IEICE Electron. Express, 2009

2008

Broadband Planar Antenna Combining Monopole Element with Electromagnetic Bandgap.

Kazuoki Matsugatani, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama

IEICE Trans. Electron., 2008

2007

Design and Optimization of Millimeter-Wave Microstrip-to-Waveguide Transition Operating over Broad Frequency Bandwidth.

Yusuke Deguchi, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama

IEICE Trans. Electron., 2007