Broadband SIW Cavity-Backed Slot Antenna for Endfire Applications

被引：27
|
作者：
Zhang, Zhao [1 ]
Cao, Xiangyu [1 ]
Gao, Jun [1 ]
Li, Sijia [1 ]
Han, Jiangfeng [1 ]
机构：
[1] Air Force Engn Univ, Xian 710077, Shaanxi, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Broadband antenna; cavity-backed slot antenna; endfire; substrate integrated waveguide (SIW); WAVE-GUIDE CAVITY; BANDWIDTH ENHANCEMENT; SUBSTRATE; DESIGN;
D O I：
10.1109/LAWP.2018.2842046
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：
A broadband substrate integrated waveguide (SIW) cavity-backed slot antenna for endfire applications is presented in the letter. The antenna employs a semiclosed SIW cavity with one sidewall removed and two radiating slots with different shapes etched on top broad wall to enhance bandwidth and radiation performance. With the special combination of the semiclosed SIW cavity and the slots, multiple resonances are generated in a close frequency range to broaden bandwidth. Furthermore, the proposed antenna is flush-mounted on a large metal plate to analyze the influence of platform on antenna performance. Measured results are in good agreement with simulation and show that the antenna bandwidth covers the frequency range 7.8 similar to 12.1 GHz for VSWR < 2, with the fractional bandwidth of 43.2%. High gain of 7.8 similar to 11.8 dBi is obtained over the working band.
引用
收藏
页码：1271 / 1275
页数：5
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