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).

引用

页数：4

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