Verification of the shaped beam feed for high aperture usage efficiency single offset parabolic reflector compact antenna test range

被引：0

作者：

Zhang, Liang ^{[1
]}

Yao, Yuan ^{[1
,3
]}

Chen, Tianyang ^{[1
]}

Li, Zhi ^{[1
]}

Ruan, Jinbo ^{[1
]}

Yu, Junsheng ^{[1
]}

Chen, Xiaodong ^{[2
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing, Peoples R China

[2] Queen Marry Univ London, Sch Elect Engn & Comp Sci, London, England

[3] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2023年 / 65卷 / 06期

关键词：

coaxial cavity horn; compact antenna test range; quiet zone; shaped pattern; single offset;

D O I：

10.1002/mop.33608

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 letter, to verify that the shaped beam feed can enhance the aperture usage efficiency of a single-offset parabolic reflector compact antenna test range (CATR), a shaped beam horn is proposed. First, we obtain the radiation intensity function of the feed. Then, a coaxial cavity horn feed with a half-ring is designed to shape the illumination that reaches the main reflector. Measured results demonstrate that, with no edge treatment, the quiet zone size can be up to 75% of the main reflector diameter under 1.20 dB amplitude variations and 12 degrees phase variations at 102.40 GHz, and 70% aperture usage efficiency ranging from 102 to 103 GHz with phase variations less than 12 degrees and amplitude variations less than 1.40 dB. The design verifies that the shaped beam feed can enhance the aperture usage efficiency of a single-offset CATR.

引用

页码：1602 / 1607

页数：6