Modified antipodal Vivaldi antenna for ultra‐wideband communications. Issue 4 (1st March 2016)

• Record Type: Journal Article
• Authors: Natarajan, Rajesh; George, Jithila V.; Kanagasabai, Malathi; Lawrance, Livya; Moorthy, Balaji; Rajendran, Dinesh Babu; Nabi Alsath, Mohammed Gulam
• Is Part Of: IET microwaves, antennas & propagation. Volume 10:Issue 4(2016)
• Page Start: 401
• Page End: 405
• Publication Date: 2016-03-01
• Subjects: ultra wideband communication -- polarisation -- ultra wideband antennas; modified antipodal Vivaldi antenna -- ultrawideband communications -- UWB communications -- single petal AVA -- antenna configuration -- low cross‐polarisation level -- prototype antenna -- time 0.5 ns; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2015.0089
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : In this study, a modified antipodal Vivaldi antenna (AVA) with low cross‐polarisation is proposed for ultra‐wideband communications. The bandwidth offered by conventional single petal AVA is enhanced by adding another petal. This dual petal antenna occupies a small volume of 60 × 60 × 0.8 mm 3 and provides operating bandwidth from 2.4 GHz to frequencies >14 GHz. The proposed antenna configuration provides low cross‐polarisation level which is <−15 dB over the entire operational band. The designed antenna offers realised gain >5 dB and an average group delay variation of 0.5 ns. The prototype antenna is fabricated and tested to validate the simulation results.