An improved design and implementation of a broadband and wide axial ratio beamwidth circularly polarized parallel plate antenna

IEICE Electronics Express

article

Lei Wu¹  Jiawei Huang¹  Bing Sun¹  Hudong Chang¹  Sen Huang¹  Honggang Liu³ 

[1] High-Frequency High-Voltage Devices and ICs R&D Center, Institute of Microelectronics, Chinese Academy of Sciences;School of Microelectronics, University of Chinese Academy of Sciences;Department of Electronics, Peking University

关键词: circular polarization;    parallel plate antenna;    broadband;   

DOI  :  10.1587/elex.19.20220087

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

This paper presents an improved design and implementation of broadband circularly polarized (CP) antenna that features a broad bandwidth and wide axial ratio (AR) beamwidth. First, the relationship between the three parallel plates (rectangular, semicircular, and semielliptical) and θ is analyzed. The semielliptical parallel plates (PP) used to obtain a wider 3dB AR-beamwidth (104°×110°×102°×118° at ϕ=0°, 45°, 90°, 135°, respectively) compared with rectangular and semicircular PP. Secondly, orthogonal crosses with 43° inclined are used to generate orthogonal fields, and broadband characteristics can be obtained by adjusting the arm of orthogonal crosses. The semielliptical CP-PP antenna prototype was verified by ANSYS HFSS simulation. According to the measurement results, the -10dB return loss is about 20% (24.3-29.7GHz). A gain of 9.22dBic at 27GHz and a 3dB AR-beamwidth of 106°×105° at ϕ=0° and ϕ=90° are obtained. The designed semielliptical CP-PP antenna can be more beneficial to 5G millimeter wave applications.

【 授权许可】

CC BY