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- Title
A Broadband SIW Cavity-Backed Circular Arc-Shaped Slot Antenna for Millimeter-Wave Applications.
- Authors
Mingming Gao; Chunli Liu; Jingchang Nan; Hongliang Niu
- Abstract
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 and a 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.
- Subjects
SLOT antennas; ANTENNAS (Electronics); WIRELESS communications; PRINTED circuits
- Publication
Progress in Electromagnetics Research Letters, 2024, Vol 117, p47
- ISSN
1937-6480
- Publication type
Article
- DOI
10.2528/PIERL23121505