Compact dual polarised V slit, stub and slot embedded circular patch antenna for UMTS/WiMAX/WLAN applications. Issue 17 (1st August 2016)

• Record Type: Journal Article
• Authors: Mathew, S.; Ameen, M.; Jayakrishnan, M.P.; Mohanan, P.; Vasudevan, K.
• Is Part Of: Electronics letters. Volume 52:Issue 17(2016)
• Page Start: 1425
• Page End: 1426
• Publication Date: 2016-08-01
• Subjects: multifrequency antennas -- UHF antennas -- slot antennas -- microstrip antennas -- antenna radiation patterns -- antenna feeds -- 3G mobile communication -- WiMax -- wireless LAN; compact dual polarised V slit embedded circular patch antenna -- compact dual polarised stub embedded circular patch antenna -- compact dual polarised slot embedded circular patch antenna -- UMTS application -- WiMAX application -- WLAN application -- single probe‐fed novel V slit embedded circular microstrip antenna -- single probe‐fed novel stub embedded circular microstrip antenna -- single probe‐fed novel slot embedded circular microstrip antenna -- impedance bandwidths -- patch size reduction -- radiation pattern -- frequency 2 GHz -- frequency 3.5 GHz -- frequency 5.6 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.1996
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A single probe‐fed novel V slit, stub and slot embedded circular microstrip antenna with resonances in the three bands of UMTS, worldwide interoperability for microwave access (WiMAX) and WLAN is presented. The polarisation is circular in the UMTS band and linear in the other two bands. Asymmetrical V slits in the patch boundary along with an embedded circular slot in the patch centre are employed to introduce the perturbation necessary for circular polarisation. Impedance bandwidths (BWs) of 4.2, 2 and 6.2%, respectively, in the three bands centred at 2, 3.5 and 5.6 GHz are obtained. The axial ratio BW is 2.3% in the UMTS band. Moderate gains of 4.4, 3.5 and 2.8 dBi are obtained in the three bands. There is a patch size reduction of about 48% when compared with the conventional circular patch antenna at a fixed operating frequency. The radiation pattern is directional in the WiMAX band and nearly omnidirectional in the WLAN band.