IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Regular Section
Design of the Circularly Polarized Ring Microstrip Antenna with Shorting Pins
Jun GOTO, Akimichi HIROTA, Kyosuke MOCHIZUKI, Satoshi YAMAGUCHI, Kazunari KIHIRA, Toru TAKAHASHI, Hideo SUMIYOSHI, Masataka OTSUKA, Naofumi YONEDA, Jiro HIROKAWA
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Keywords: array antenna, dual band, ring microstrip antenna, shorting pin
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2022 Volume E105.B Issue 1 Pages 34-43

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Abstract

We present a novel circularly polarized ring microstrip antenna and its design. The shorting pins discretely disposed on the inner edge of the ring microstrip antenna are introduced as a new degree of freedom for improving the resonance frequency control. The number and diameter of the shorting pins control the resonance frequency; the resonance frequency can be almost constant with respect to the inner/outer diameter ratio, which expands the use of the ring microstrip antenna. The dual-band antenna where the proposed antenna includes another ring microstrip antenna is designed and measured, and simulated results agree well with the measured one.

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© 2022 The Institute of Electronics, Information and Communication Engineers
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