Wireless D-band communication up to 60 Gbit/s with 64QAM using GaAs HEMT technology. - Ikuma Ando; Masaaki Tanio; Masaharu Ito; Toshihide Kuwabara; Tsunehisa Marumoto; Kazuaki Kunihiro (RWS, 2016)

Measuring Propagation Channel Variations and Reciprocity using 28 GHz Indoor Distributed Multi-user MIMO. - Noriaki Tawa; Toshihide Kuwabara; Yasushi Maruta; Tomoya Kaneko (RWS, 2020)

A D-Band Sub-Harmonically Pumped Mixer with High LO Suppression Using 250-nm InP DHBT P-N Junction. - Shinji Hachiyama; Koki Tanji; Toshihide Kuwabara; Naoki Oshima; Kazuaki Kunihiro; Tomoya Kaneko (BCICTS, 2023)

D-Band 4-ch Antenna-on-Chip Phased-Array TX Front-End. - Toshihide Kuwabara; Naoki Oshima; Koki Tanji; Noriaki Tawa; Shinji Hachiyama; Tomoya Kaneko (BCICTS, 2023)