A designed of miniaturized Vivaldi antenna for antenna array applications

2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC) Pub Date : 2017-03-01 DOI:10.1109/IAEAC.2017.8054220

Denghui Huang, Hu Yang, Xiang Liu, Yuqing Wu, Jun-ru Gong

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引用次数: 1

Abstract

This paper presents a miniaturized Vivaldi antenna in order to meet the practical requirements of antenna array applications. Compared to the conventional Vivaldi antenna (CVA), the width of the modified Vivaldi antenna aperture is reduced 38.05% by adding regular slot edges (RSE), which will prevent the antenna array from generating the grating lobes. Additionally, the RSE has improved the radiative features of antenna. It mitigates the side lobe level, overcomes the beam-squint at E-plane, and increases gain. The parameters of the CVA and CVA-RSE are optimized. The simulated impedance bandwidth (VSWR<2) is approximately from 7.85 GHz to 12 GHz for both of them. A comparison between the modified CVA-RSE and CVA at 12 GHz shows an improved gain of 10.8 dB, −13.3 dB of the Side Lobe Level (SLL), and 0 degrees of the Main Lobe Squint (MLS) at E-plane, in contrast with 9.5 dB of gain, −9.9 dB of SLL, and 2 degrees of the MLS at E-plane in the conventional Vivaldi antenna.

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天线阵列小型化维瓦尔第天线设计

为了满足天线阵列应用的实际要求，本文提出了一种小型化的维瓦尔第天线。与传统的维瓦尔第天线(CVA)相比，改进的维瓦尔第天线通过增加规则的缝隙边缘(RSE)，使天线阵列的孔径宽度减小了38.05%，从而避免了光栅瓣的产生。此外，RSE还改善了天线的辐射特性。它降低了旁瓣电平，克服了e面波束斜视，提高了增益。对CVA和CVA- rse的参数进行了优化。模拟阻抗带宽(VSWR<2)约为7.85 GHz ~ 12 GHz。改进后的vva - rse和CVA天线在12 GHz频段的增益分别为10.8 dB、- 13.3 dB和0°主瓣斜视(MLS)，而传统的Vivaldi天线在e平面的增益分别为9.5 dB、- 9.9 dB和2°。

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

2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)

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