Design of A Wideband Low-Profile Cylindrical Conformal Array Antenna With Flexible Beam Scanning Capability

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI:10.1109/AP-S/USNC-URSI47032.2022.9885815

Min Wang, Yang Hu, Zhengchuan Chen

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Abstract

In this paper, a wideband low-profile cylindrical conformal array antenna with flexible beam scanning capability is reported. The design consists of the semi-cylindrical band-pass array antenna and the semi-cylindrical band-stop array antenna, which are connected by radius of R = 31.8 (1.06λo) mm. Based on the frequency selective surface, the profile of band-pass and band-stop element is less than 0.15λo, meanwhile, both have the characteristic of easy to conformal. The band-pass element comprises top and bottom layer of square metallic patch and a middle layer of metallic square-ring slot, and its transmission loss is less than 0.9 dB within 8.0-12.0 GHz. The band-stop element consists of top and bottom square metallic patch, middle metallic square-ring slot loaded with square tube, and its reflection loss is below 1.5 dB within 8.0-12.0 GHz. And a wide-angle of 360° beams scanning is realized, by rotating the spatial position of scanning conformal array. Finally, the simulated results show that the proposed low-profile array antenna have the characteristics of wideband, low-loss, wide-angle beam scanning.

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具有柔性波束扫描能力的宽带低轮廓圆柱共形阵列天线设计

本文报道了一种具有柔性波束扫描能力的宽带低轮廓圆柱共形阵列天线。该设计由半圆柱形带通阵列天线和半圆柱形带阻阵列天线组成，它们以半径R = 31.8 (1.06λo) mm连接，基于频率选择面，带通和带阻元件的轮廓小于0.15λo，同时都具有易于保形的特点。该带通元件由上下两层方形金属贴片和中间层金属方环槽组成，在8.0-12.0 GHz范围内传输损耗小于0.9 dB。该带阻元件由上下两层方形金属贴片、中间金属方环槽加载方管组成，在8.0 ~ 12.0 GHz范围内反射损耗低于1.5 dB。通过旋转扫描共形阵的空间位置，实现了360°广角波束扫描。仿真结果表明，所设计的低轮廓阵列天线具有宽带、低损耗、广角波束扫描的特点。

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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2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)

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