Cylindrical conformal broadband array antenna based on defective ground structure

2019 IEEE 4th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC) Pub Date : 2019-12-01 DOI:10.1109/IAEAC47372.2019.8997548

Yuhe Liu, Ting Wang, Peilin Zhong, Sijie Wang

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引用次数: 1

Abstract

The existing cylindrical conformal ultra-wideband antennas are mostly unit antennas, although the working bandwidth is wider, the gain is low. When the array antenna is conformal on the surface of the cylinder, the working bandwidth is narrowed because of the deformation of the array antenna. To solve this problem, a cylindrical conformal array antenna based on rectangular defective ground structure(DGS) is proposed in this paper. The antenna is designed as a cylindrical conformal wideband array antenna with a center frequency of 10 GHz, which broadens the bandwidth by loading rectangular defective ground structures on the backplane. The simulation results show that the bandwidth of the cylindrical conformal array antenna increases from 0.2GHz to 1.6GHz after loading the rectangular defective ground structure, and the gain of the antenna increases from 12.3dB to 14.1dB. The operating frequency bandwidth of the conformal array antenna is effectively increased without adding the thickness of the dielectric layer, which is more advantageous for miniaturization and integration of the array antenna.

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基于缺陷接地结构的圆柱共形宽带阵列天线

现有的圆柱共形超宽带天线多为单元天线，虽然工作带宽较宽，但增益较低。当阵列天线在圆柱体表面共形时，由于阵列天线的变形，使工作带宽变窄。为了解决这一问题，本文提出了一种基于矩形缺陷接地结构的圆柱共形阵天线。天线设计为中心频率为10ghz的圆柱形共形宽带阵列天线，通过在背板上加载矩形缺陷接地结构来拓宽带宽。仿真结果表明，加载矩形缺陷接地结构后，圆柱共形阵天线的带宽从0.2GHz增加到1.6GHz，天线增益从12.3dB增加到14.1dB。在不增加介质层厚度的情况下，有效地增加了共形阵列天线的工作频率带宽，更有利于阵列天线的小型化和集成化。

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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来源期刊

2019 IEEE 4th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)

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