基于沟槽壁喇叭天线的毫米波无线通信宽带双圆极化天线

2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI:10.1109/ucmmt53364.2021.9569932

Chao Shu, Yuan Yao, Y. Alfadhl, Xiao-dong Chen

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引用次数: 0

摘要

本文提出了一种基于槽壁喇叭天线的双圆极化(dual-CP)天线，该天线工作在w波段，在较宽的带宽范围内具有较高的端口隔离性。沟槽壁喇叭天线在其壁上有一对沟槽作为内置偏振器。通过将沟槽壁喇叭与正交换能器(OMT)连接，使一对沟槽相对于OMT的水平和垂直极化呈±45°对准，可以产生左手圆极化(LHCP)和右手圆极化(RHCP)，从而实现双cp天线。由于喇叭的低反射系数和OMT的高隔离，也实现了高隔离。仿真结果表明，该双cp天线在82 ~ 108 GHz范围内，在27.4%的带宽范围内实现了> 30 dB的端口隔离，轴比(AR) < 3 dB， |S11| < - 15 dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Wideband Dual-Circular-Polarization Antenna based on the Grooved-Wall Horn Antenna for Millimeter-Wave Wireless Communications

This paper presents a dual-circular-polarization (dual-CP) antenna based on a grooved-wall horn antenna working in the W-band, which shows high port isolation over a wide bandwidth. The grooved-wall horn antenna has a pair of grooves on its wall to serve as an inbuilt polarizer. By connecting the grooved-wall horn to an orthomode transducer (OMT) in such a way that the pair of grooves is aligned at ±45° with respect to the horizontal and vertical polarization of the OMT, left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) can be generated, thereby realizing a dual-CP antenna. High isolation is also achieved due to the low reflection coefficient of the horn and high isolation of the OMT. The simulated results show the proposed dual-CP antenna achieves port isolation> 30 dB over 27.4% bandwidth from 82 to 108 GHz with axial ratio (AR) < 3 dB and |S11| < −15 dB.

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

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