w波段双极化全波导缝隙阵列天线

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2018-12-01 DOI:10.1109/ISAPE.2018.8634410

Yang Niu, Bing Hu

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引用次数: 2

摘要

在w波段外场测试系统中，天线需要高隔离度来获取不同纬度的目标特征信息，需要低旁瓣来实现高分辨率。为了满足以上两个关键要求，本文设计了一种新型的$2\ × 2$双极化全公司波导缝隙阵列单元。本机组采用正交模耦合结构，实现双极化馈电功能。它利用圆形槽辐射电磁波。天线阵列由阵列单元组成，以达到窄波束宽度和低旁瓣电平。仿真结果表明，在91 ~ 97ghz频段，VSWR小于1.5。天线阵列增益大于28dB, 3db波束宽度为7°。它的副瓣电平小于- 22dB，交叉极化电平小于- 55dB。

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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A Dual-Polarized Full-Corporate Waveguide Slot Array Antenna on W-Band

In the context of the W-band outfield test system, antennas need high isolation to acquire target characteristic information at different latitudes and low sidelobe to realize high resolution. In order to meet above the two key requirements, this paper designs a new type of $2\times 2$ dual-polarized full-corporate waveguide slot array unit. This unit uses orthogonal-mode coupling structure to achieve dual-polarized feed function. It utilizes circular slot to radiate electromagnetic waves. Antenna array consists of array units to reach narrow beamwidth and low sidelobe level. The simulation results show that the VSWR is less than 1.5 in the band of 91-97GHz. The antenna array has a gain more than 28dB and 3dB-beamwidth is 7°. It has a sidelobe level less than −22dB and a cross-polarization level less than −55dB.

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2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

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