Wideband hybrid circularly polarised rectangular dielectric resonator antenna excited by modified cross‐slot. Issue 16 (1st July 2014)

• Record Type: Journal Article
• Authors: Zou, Meng; Pan, Jin
• Is Part Of: Electronics letters. Volume 50:Issue 16(2014)
• Page Start: 1123
• Page End: 1125
• Publication Date: 2014-07-01
• Subjects: dielectric resonator antennas -- slot antennas -- broadband antennas -- antenna radiation patterns -- antenna feeds; CP rectangular dielectric resonator antenna -- wideband hybrid circularly polarised rectangular DRA -- modified cross‐slot -- effective radiator -- feeding structure -- structure parameters -- prototype antenna -- axial ratio -- AR; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2014.1917
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A wideband circularly polarised (CP) rectangular dielectric resonator antenna (DRA) based on the concept of a hybrid antenna is presented. In this design, the modified cross‐slot simultaneously performs the functions of an effective radiator and the feeding structure of the rectangular dielectric resonator (DR). By properly designing the structure parameters of the DRA, the resonances of the modified cross‐slot and the DR can be merged to obtain a wide CP bandwidth. A prototype antenna is designed, fabricated and measured, and a wide 3 dB axial ratio bandwidth of 24.6% is achieved.