Broadband circularly polarised square slot antenna fed by coplanar waveguide. Issue 16 (1st August 2013)

• Record Type: Journal Article
• Authors: Liu, Y.W.; Hsu, P.
• Is Part Of: Electronics letters. Volume 49:Issue 16(2013)
• Page Start: 976
• Page End: 977
• Publication Date: 2013-08-01
• Subjects: antenna feeds -- broadband antennas -- coplanar waveguides -- slot antennas; broadband circularly polarised square slot antenna -- coplanar waveguide -- check‐shaped strip -- signal strip -- CPW -- circular polarisation; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.0905
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A broadband circularly polarised square slot antenna fed by a coplanar waveguide (CPW) from a corner of the slot is proposed. A check‐shaped strip with its vertex connected to the protruded signal strip of the CPW is used to achieve circular polarisation. The measured 3 and 1 dB axial ratio bandwidths are 48 and 21.3%, respectively, and the input impedance bandwidth (| S 11 | ≤ − 10 dB) is 73.9%, which covers the entire circular polarisation band.