High aperture efficient slot antenna surrounded by the cavity and narrow corrugations at Ka‐band and Ku‐band. Issue 12 (26th June 2018)

• Record Type: Journal Article
• Authors: Alkaraki, Shaker; Gao, Yue; Parini, Clive
• Is Part Of: IET microwaves, antennas & propagation. Volume 12:Issue 12(2018)
• Page Start: 1926
• Page End: 1931
• Publication Date: 2018-06-26
• Subjects: antenna radiation patterns -- slot antennas -- aperture antennas; high aperture efficient slot antenna -- cavity -- narrow corrugations -- Ku‐band application -- Ka‐band application -- design criterion -- resonance slot -- aluminium plate -- peak aperture efficiency -- frequency 13 GHz -- frequency 28.5 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2018.0060
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A design criterion for a small, compact, high‐aperture‐efficient antenna is proposed in this study. The proposed criterion is validated experimentally through fabricating and testing two prototypes for Ku‐band and Ka‐band applications. The proposed antenna design consists of a resonance slot perforated in an aluminium plate and surrounded by a cavity and two corrugations. The proposed Ku‐band antenna has an aperture efficiency of 74.3% and a measured gain of 12.2 dBi at 13 GHz, while the Ka‐band antenna resonates at 28.5 GHz with a peak aperture efficiency of 78% and a gain of 12.9 dBi. The gain of both antennas is dramatically boosted by the radiation from the cavity and corrugations, resulting in a significant enhancement in the aperture efficiency.