Three-dimensional MMIC technology for low-cost millimeter-wave MMICs. - Kenjiro Nishikawa; Kenji Kamogawa; Belinda Piernas; Masami Tokumitsu; Suehiro Sugitani; Ichihiko Toyoda; Katsuhiko Araki (IEEE J. Solid State Circuits, 2001)

Performance evaluation of QoS control scheme that uses back pressure traffic control. - Fusao Nuno; Ichihiko Toyoda; Masahiro Umehira (PIMRC, 2004)

Proposal of 5/25-GHz dual band OFDM-based wireless LAN for high-capacity broadband communications. - Ichihiko Toyoda; Fusao Nuno; Yoshitaka Shimizu; Masahiro Umehira (PIMRC, 2005)

Interference Analysis from Impulse Radio UWB Systems Using Simple Signal Models. - Yasuo Suzuki; Ichihiko Toyoda; Masahiro Umehira (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Analyses of Antenna Displacement in Short-Range MIMO Transmission over Millimeter-Wave. - Ken Hiraga; Tomohiro Seki; Kentaro Nishimori; Kenjiro Nishikawa; Ichihiko Toyoda; Kazuhiro Uehara (IEICE Trans. Commun., 2011)

A study of automatic measuring circuit suitable for very small phase difference measurement. - Takuro Noguchi; Sumio Fukai; Ichihiko Toyoda; Yohei Ishikawa; Akio Shimizu (ISPACS, 2015)

A novel compact planar magic-T using CPS and microstrip-to-CPS transition. - Hiroki Nakahara; Takayuki Tanaka; Ichihiko Toyoda (IEICE Electron. Express, 2021)

A Beam-Switchable Self-Oscillating Active Integrated Array Antenna Using Gunn Oscillator and Magic-T. - Maodudul Hasan; Eisuke Nishiyama; Ichihiko Toyoda (IEICE Trans. Commun., 2021)

An Electrically Reconfigurable Circularly-Polarized Planar Array Antenna With Built-In Bias-Isolation Mechanism. - Htet Wai Htun; Eisuke Nishiyama; Ichihiko Toyoda (IEEE Access, 2023)

A tri-state SPDT switch using shunt open-end stub resonator for X-band applications. - Maodudul Hasan; Eisuke Nishiyama; Ichihiko Toyoda (IEICE Electron. Express, 2023)

A Dual-Axis Wide-Beam Microstrip Patch Antenna Using Linear Parasitic Line Elements. - Maodudul Hasan; Eisuke Nishiyama; Ichihiko Toyoda (IEEE Access, 2024)

A Single-Layer Planar Array Antenna Using Circularly-Polarized Reconfigurable Elements for Conical-Beam Radiation. - Htet Wai Htun; Eisuke Nishiyama; Ichihiko Toyoda (IEEE Access, 2024)

Microstrip Patch Antenna Design Using a Four-Layer Feed Forward Artificial Neural Network Trained by Levenberg-Marquardt Algorithm. - Jitu Prakash Dhar; Maodudul Hasan; Eisuke Nishiyama; Ichihiko Toyoda (IEEE Access, 2025)