Summary
International Conference on Emerging Technologies for Communications
2021
Session Number:A1
Session:
Number:A1-5
A Wideband Double-Balanced Multiplier Integrated Circular-Polarization Switchable Microstrip Antenna with Parasitic Elements
Tatsuki Kayashima, Eisuke Nishiyama, Ichihiko Toyoda ,
pp.-
Publication Date:2021/12/1
Online ISSN:2188-5079
Summary:
This paper presents a new wideband circular-polarization (CP) switchable microstrip antenna. The novel concept of the wideband operation is a combination of a double-balanced multiplier (DBM) and parasitic elements around the fed patch. The DBM-integrated CP antenna theoretically provides wideband phase difference between two orthogonal modes. The parasitic elements improve the amplitude imbalance of the two modes as the parasitic elements are designed to have a slightly different resonance frequency from the fed patch. The 3-dB axial-ratio bandwidth of the 5-GHz band prototype antenna is around 10.9% for both polarization senses.