Wideband Coffee-Bean Shaped Radiating Element for Circularly-Polarized Waveguide Slot Arrays

被引：0
|
作者：
Fernando-Rocher, Miguel [1 ,2 ]
Herranz-Herruzo, Jose, I [1 ]
Valero-Nogueira, Alejandro [1 ]
机构：
[1] Univ Politecn Valencia, Antennas & Propagat Lab APL iTEAM, Valencia, Spain
[2] Univ Alicante, Microwave & Appl Computat Electromagnet Grp GMECA, Alicante, Spain
来源：
2021 15TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2021年
关键词：
Circular polarization; Coffee-Bean Polarizer; Gap waveguide technology; Ka-Band; Slotted-waveguide antenna; ANTENNA;
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：
A wideband coffee-bean shaped radiating element for circularly-polarized waveguide slot arrays is presented. The proposed solution is based on a very simple polarizer aimed to be integrated into flat panel antennas in the millimeter-wave band. For validation purposes, a slot array fed by a groove gap waveguide network at 30 GHz is taken as a feeder. Simulated results using periodic boundary conditions in a 2 x 2 unit cell are presented in this work. Preliminary results show a frequency bandwidth of 4 GHz with input reflection coefficient better than -10 dB. It is worth stressing the good polarization purity achieved, being below 1.5 dB from 29 GHz to 31 GHz and below 3 dB in the whole band of interest (28 to 32 GHz).
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页数：4
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