Wideband printed slot antenna with polarisation diversity. Issue 12 (1st June 2013)

• Record Type: Journal Article
• Authors: Xie, J.‐J.; Yin, Y.‐Z.; Chen, Y.
• Is Part Of: Electronics letters. Volume 49:Issue 12(2013)
• Page Start: 737
• Page End: 739
• Publication Date: 2013-06-01
• Subjects: antenna feeds -- antenna radiation patterns -- coplanar waveguides -- electromagnetic wave polarisation -- microstrip antennas -- microstrip lines -- microwave antennas -- waveguide antennas; polarisation diversity -- single‐layer wideband printed slot antenna -- hybrid feeding technique -- aperture‐coupled feeding element -- coplanar waveguide feeding element -- aperture‐coupled microstrip feed line -- cross‐polarisation level -- isolation level -- circular patch -- coplanar waveguide feed line -- impedance matching -- fan‐shaped slot -- ground plane -- radiating elements -- wireless local area network -- bandwidth 4.72 GHz to 7.75 GHz -- bandwidth 3.96 GHz to 7.64 GHz; antenna feeds -- antenna radiation patterns -- coplanar waveguides -- electromagnetic wave polarisation -- microstrip antennas -- microstrip lines -- microwave antennas -- waveguide antennas; polarisation diversity -- single‐layer wideband printed slot antenna -- hybrid feeding technique -- aperture‐coupled feeding element -- coplanar waveguide feeding element -- aperture‐coupled microstrip feed line -- cross‐polarisation level -- isolation level -- circular patch -- coplanar waveguide feed line -- impedance matching -- fan‐shaped slot -- ground plane -- radiating elements -- wireless local area network -- bandwidth 4.72 GHz to 7.75 GHz -- bandwidth 3.96 GHz to 7.64 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.0240
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A single‐layer wideband printed slot antenna with polarisation diversity is presented using a hybrid feeding technique. The antenna consists of an aperture‐coupled feeding element and a coplanar waveguide feeding element. The aperture‐coupled microstrip feed line with a 180° phase difference is used to reduce the cross‐polarisation level and improve the isolation level. A circular patch is connected to the coplanar waveguide feed line for good impedance matching. By introducing a fan‐shaped slot to separate the ground plane of the radiating elements, the measured isolation between the two feeding ports is better than 30 dB in the whole operating band. The measured −10 dB impedance bandwidths are 49% (4.72–7.75 GHz) and 63% (3.96–7.64 GHz) at port 1 and port 2, respectively. Moreover, the proposed antenna has a compact structure and stable gain over the operating band; thus it can be used in the 5.2/5.8 GHz WLAN and 5.5 GHz WiMAX systems.