带极化和OAM复用的w波段宽带卡塞格伦天线

2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI:10.1109/ucmmt53364.2021.9569944

Weihao Qi, Xianling Liang, Lei Xiang, Yanchang Gao, Jun-ping Geng, R. Jin

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引用次数: 1

摘要

提出了一种w波段宽带双极化三模OAM卡塞格伦天线。天线由两部分组成。一种是采用双极化开放式方形波导天线双环天线阵列作为馈源，产生模式为l=±1和+2的OAM波束;另一种是采用卡塞格伦反射器，用于汇聚OAM波束。该天线的10dB阻抗带宽超过24.9%，增益优于26.6dBi，旁瓣电平低于- 10.7dB，交叉极化电平低于- 15dB。

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A W-band Broadband Cassegrain Antenna with Polarisation and OAM Multiplexing

A broadband dual-polarisation and three-mode OAM cassegrain antenna in W-band is proposed. The antenna consists of two parts. One is a dual-polarised open-ended square waveguide antenna double-ring antenna array as a feed, which is designed to generate OAM beams with modes of l= ±1 and +2, and the other is a cassegrain reflector, which is designed to converge the OAM beams. The proposed antenna has a 10dB impendance bandwidth beyond 24.9%, gains better than 26.6dBi, side-lobe levels lower than −10.7dB, and cross-polarisation levels lower than −15dB.

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来源期刊

2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)

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