A compact dual-circularly polarized cavity-backed ring-slot antenna

Ferreira, Riaan; Joubert, Johan; Odendaal, J.W. (Johann Wilhelm)

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dc.contributor.author	Ferreira, Riaan
dc.contributor.author	Joubert, Johan
dc.contributor.author	Odendaal, J.W. (Johann Wilhelm)
dc.date.accessioned	2017-02-09T08:46:21Z
dc.date.available	2017-02-09T08:46:21Z
dc.date.issued	2017-01
dc.description.abstract	A low profile dual-circularly polarized printed ring-slot antenna with a small footprint, which radiates above an open cavity loaded with an artificial magnetic conducting reflector, is presented. The feed network consists of two T-shaped capacitive feed structures connected to a miniaturized hybrid branch-line coupler. Experimental results for a final antenna design (with a size of 0.5λ0 × 0.5λ0 × 0.057λ0) show a 4% isolation bandwidth between the two ports of the dual-circularly polarized antenna and a maximum gain of approximately 6.8 dBic. Good front-to-back ratios and low cross-polarization were achieved. These very compact and low profile antennas are suitable for 2.4 GHz wireless local area network (WLAN) communication systems.	en_ZA
dc.description.department	Electrical, Electronic and Computer Engineering	en_ZA
dc.description.librarian	hb2017	en_ZA
dc.description.uri	http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8	en_ZA
dc.identifier.citation	Ferreira, R, Joubert, J & Odendaal, JW 2017, 'A compact dual-circularly polarized cavity-backed ring-slot antenna', IEEE Transactions on Antennas and Propagation, vol. 65, no. 1, art# 7797250, pp. 364-368.	en_ZA
dc.identifier.issn	0018-926X
dc.identifier.other	10.1109/TAP.2016.2623654
dc.identifier.uri	http://hdl.handle.net/2263/58949
dc.language.iso	en	en_ZA
dc.publisher	Institute of Electrical and Electronics Engineers	en_ZA
dc.rights	© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists of any copyrighted components of this work in other works.	en_ZA
dc.subject	Cavity backed antennas	en_ZA
dc.subject	Circular polarization	en_ZA
dc.subject	Electromagnetic bandgap (EBG)	en_ZA
dc.subject	Materials	en_ZA
dc.subject	Microstrip couplers	en_ZA
dc.subject	Slot antennas	en_ZA
dc.subject	Wireless local area network (WLAN)	en_ZA
dc.title	A compact dual-circularly polarized cavity-backed ring-slot antenna	en_ZA
dc.type	Postprint Article	en_ZA