Broadband beam scanning circularly‐polarised leaky‐wave antenna based on modified substrate integrated waveguide. Issue 5 (1st February 2013)

• Record Type: Journal Article
• Authors: Jin, C.; Mujumdar, M.; Alphones, A.
• Is Part Of: Electronics letters. Volume 49:Issue 5(2013)
• Page Start: 316
• Page End: 318
• Publication Date: 2013-02-01
• Subjects: frequency; antenna radiation patterns -- broadband antennas -- electromagnetic wave polarisation -- electromagnetic wave reflection -- impedance matching -- leaky wave antennas -- substrate integrated waveguides; substrate integrated waveguide -- high gain broadband beam scanning circularly‐polarised leaky‐wave antenna -- CP LWA -- broadband matched impedance -- reflection coefficient -- radiation pattern -- axial ratio -- continuous beam scanning -- frequency 15.4 GHz to 19 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.0177
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A high gain broadband beam scanning circularly‐polarised (CP) leaky‐wave antenna (LWA) is proposed based on a modified substrate integrated waveguide. The designed CP LWA has been fabricated and its performance measured. The reported antenna presents expected broadband matched impedance with a measured reflection coefficient | S 11 | < − 10 dB from 15.4 to 19 GHz. The radiation pattern was measured and the axial ratio of the antenna is within 3 dB from 15.9 to 17.2 GHz. The antenna exhibits continuous beam scanning from 35° at 15.5 GHz to 47° at 18 GHz according to the broadside with maximum gain of 12.3 dBi.