Coupling of a circularly polarized slot pair on a corrugated waveguide of finite length. - Kei Sato; Jiro Hirokawa; Kaoru Sudo; Makoto Ando (IEICE Electron. Express, 2006)

A 28 GHz Band Compact LTCC Filtering Antenna with Extracted-Pole Unit for Dual Polarization. - Kaoru Sudo; Ryo Mikase; Yoshinori Taguchi; Koichi Takizawa; Yosuke Sato; Kazushige Sato; Hisao Hayafuji; Masataka Ohira (IEICE Trans. Electron., 2023)