A SIW-based Wideband Circularly Polarized 4x4 Patch Array Antenna in 45 GHz Band

被引：0
|
作者：
Li, Chenfeng [1 ]
Liu, Pengfei [1 ]
Zhu, Xiao-Wei [1 ]
Zhu, Anding [2 ]
机构：
[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing, Peoples R China
[2] Univ Coll Dublin UCD, Sch Elect & Elect Engn, Dublin, Ireland
来源：
2019 12TH UK-EUROPE-CHINA WORKSHOP ON MILLIMETER WAVES AND TERAHERTZ TECHNOLOGIES (UCMMT) | 2019年
基金：
中国国家自然科学基金;
关键词：
substrate integrated waveguide (SDI); circular polarization; 45; GHz; sequential rotation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a substrate integrated waveguide (SIW)-based wideband circularly polarized (CP) 4x4 patch array antenna operating in 45 GHz band is proposed. Firstly, a series fed 1x4 patch subarray is designed. Sequential rotation (SR) feeding technology is adopted to extend axial-ratio (AR) bandwidth. Then, a 4x4 patch array antenna using four 1x4 patch subarrays is presented. The anti-phase feeding network is used to obtain stable CP radiation patterns among wide frequency band. The proposed antenna was fabricated and measured. -10-dB vertical bar S-11 vertical bar bandwidth of 27.6% (36.4-51.2 GHz), 3 -dB AR bandwidth of 11.6% (41.6-47.6 GHz) and the peak gain of 17.1 dBic are achieved in the vicinity of 45 GHz.
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收藏
页数：4
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