Wide-Scanning-Angle Leaky-Wave Array Antenna Based on Microstrip SSPPs-TL

被引：66

作者：

Wei, Dujuan ^{[1
]}

Li, Jianyin ^{[1
]}

Yang, Jiangjun ^{[1
]}

Qi, Yiangxiao ^{[1
]}

Yang, Guangwei ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Elect & Informat, Xian 710129, Shaanxi, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Leaky-wave antenna (LWA); spoof surface plasmon polaritons (SSPPs); microstrip SSPPs-transmission line (TL); wide scanning angle; SURFACES;

D O I：

10.1109/LAWP.2018.2855178

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, a wide-scanning-angle leaky-wave antenna (LWA) based on a microstrip spoof surface plasmon polaritons (SSPPs) transmission line (TL) is proposed. The dual-conductor SSPPs-TL as the guiding-wave structure of the proposed antenna consists of a two-edged grooved corrugated strip and a ground plane. A set of metallic posts connect the corrugated strip to the ground plane along two sides of the SSPPs-TL in a staggered way, which converts SSPPs to radiation waves. A power divider is the feeding network for two antenna arrays. The scanning region is mainly controlled by the depth of the groove, which has strong relationship with the dispersion of the antenna. Over the operating band from 5 to 7 GHz, the beam of the proposed antenna scans widely from -30 degrees to 51 degrees (including the broadside) with the realized gain varying from 15.9 to 19.4 dBi. A prototype is fabricated and measured, which confirms the design theory and the simulation results.

引用

页码：1566 / 1570

页数：5

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