Design of the Circularly Polarized Ring Microstrip Antenna with Shorting Pins. - Jun Goto; Akimichi Hirota; Kyosuke Mochizuki; Satoshi Yamaguchi; Kazunari Kihira; Toru Takahashi 005; Hideo Sumiyoshi; Masataka Otsuka; Naofumi Yoneda; Jiro Hirokawa (IEICE Trans. Commun., 2022)