A Broadband SIW Cavity-backed Circular Arc-shaped Slot Antenna for Millimeter-wave Applications
Mingming Gao,
Chunli Liu,
Jingchang Nan
et al.
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 arcshaped 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 us… Show more
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