A Dual-Polarized Horn Antenna Covering Full Ka-Band Using Turnstile OMT

被引：3

作者：

Xiao, Jun ^{[1
]}

Teni, Geer ^{[2
]}

Li, Hongmei ^{[3
]}

Ding, Tongyu ^{[1
]}

Ye, Qiubo ^{[1
]}

机构：

[1] JiMei Univ, Sch Ocean Informat Engn, Xiamen, Peoples R China

[2] Beijing Xibao Elect Technol Co Ltd, Beijing, Peoples R China

[3] Harbin Inst Technol, Harbin, Peoples R China

来源：

FRONTIERS IN PHYSICS | 2022年 / 10卷

基金：

中国国家自然科学基金;

关键词：

dual-polarized antenna; corrugated horn antenna; orthomode transducer (OMT); turnstile junction; Ka-band; ORTHOMODE TRANSDUCER; DESIGN;

D O I：

10.3389/fphy.2022.880606

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This article presents a dual-polarized corrugated horn antenna incorporated a turnstile orthomode transducer (OMT) covering the full Ka-band (26.5-40 GHz). A three-stepped cylindrical tuning stub scattering element is designed in the turnstile junction to combine/split the two linearly polarized waves with high isolation. The proposed turnstile OMT shows a good simulated return loss better than 20 dB and a high isolation higher than 57 dB within the whole Ka-band. Then, a corrugated horn antenna with five-stage choke rings is designed. Finally, the proposed horn antenna incorporated in the turnstile OMT is fabricated and measured. The measured impedance bandwidth for |S-11/22|<= -15 dB is 50.7% from 25 to 42 GHz. The measured peak gain is 11.9 dBi. The proposed antenna system is a promising candidate for the 5G millimeter-wave applications.

引用

页数：7

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