A Broadband SIW Cavity-Backed Circular Arc-Shaped Slot Antenna for Millimeter-Wave Applications

被引：2
|
作者：
Gao, Mingming [1 ,2 ]
Liu, Chunli [1 ,2 ]
Nan, Jingchang [1 ,2 ]
Niu, Hongliang [1 ,2 ]
机构：
[1] Liaoning Tech Univ, Liaoning, Peoples R China
[2] Liaoning Key Lab Radio Frequency & Big Data Intell, Huludao City,, Liaoning, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2024年 / 117卷
关键词：
Bandwidth - Coplanar waveguides - Electric impedance - Microwave antennas - Millimeter waves - Natural frequencies - Printed circuit boards - Substrate integrated waveguides;
D O I：
10.2528/PIERL23121505
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 circular arc-shaped slot antenna is proposed in this paper which operates from 25.1 GHz to 31.5 GHz. The antenna is based on a substrate-integrated waveguide (SIW) and fed through a grounded coplanar waveguide (GCPW). A circular arc-shaped slot is presented instead of a conventional narrow rectangular slot to extend bandwidth performance. The slot antenna generates six closely resonant frequencies by exciting high-order modes, which help get a broadband response. Antenna's prototype is fabricated using the standard Printed Circuit Board (PCB) process. The results of its measurement show that the antenna achieves an impedance bandwidth of 22.6% at 28 GHz anda peak gain of 11.5 dBi. The efficiency in the operating bandwidth is more than 85%. The antenna shows the merits of low-profile, high-gain, and broadband characteristics, which are very suitable for mm-wave wireless communication systems.
引用
收藏
页码：47 / 54
页数：8
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