Koji Tsutsumi

According to our database, Koji Tsutsumi authored at least 6 papers between 2009 and 2023.

Collaborative distances:

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

2023

Variable-Gain Phase Shifter with Phase Compensation Using Varactors.

Akihito Hirai, Yuki Tsukui, Koji Tsutsumi, Kazutomi Mori

IEICE Trans. Electron., November, 2023

2019

A 0.3-to-5.5 GHz Digital Frequency Discriminator IC with Time to Digital Converter and Edge Counter for Instantaneous Frequency Measurement.

Akihito Hirai, Koji Tsutsumi, Hideyuki Nakamizo, Eiji Taniguchi, Kenichi Tajima, Kazutomi Mori, Masaomi Tsuru, Mitsuhiro Shimozawa

IEICE Trans. Electron., 2019

2017

A 15GHz-Band 4-Channel Transmit/Receive RF Core-Chip for High SHF Wide-Band Massive MIMO in 5G.

Koji Tsutsumi, Takaya Maruyama, Wataru Yamamoto, Takanobu Fujiwara, Tatsuya Hagiwara, Ichiro Somada, Eiji Taniguchi, Mitsuhiro Shimozawa

IEICE Trans. Electron., 2017

A Compact RF Frontend Module of Active Phased Array Antenna for High SHF Wideband Massive MIMO in 5G.

Hideyuki Nakamizo, Shintaro Shinjo, Koji Tsutsumi, Satoshi Yamaguchi, Hideharu Yoshioka, Akihiro Okazaki, Akinori Taira, Kenichi Tajima

IEICE Trans. Electron., 2017

2015

Adaptively Phase-Shift Controlled Self-Injection Locked VCO.

Masaomi Tsuru, Kengo Kawasaki, Koji Tsutsumi, Eiji Taniguchi

IEICE Trans. Electron., 2015

2009

0.4-5.8 GHz SiGe-MMIC Quadrature Modulator Employing Self Current Controlled Mixer for Cognitive Radio.

Shintaro Shinjo, Fumiki Onoma, Koji Tsutsumi, Noriharu Suematsu, Mitsuhiro Shimozawa, Hiroshi Harada

IEICE Trans. Commun., 2009