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Compact omnidirectional antenna of circular polarization
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0002-3401-1125
2012 (English)In: IEEE Antennas and Wireless Propagation Letters, ISSN 1536-1225, E-ISSN 1548-5757, Vol. 11, 1466-1469 p.Article in journal (Refereed) Published
Abstract [en]

A compact omnidirectional antenna of circular polarization (CP) is presented for 2.4-GHz WLAN access-point applications. The antenna consists of four bended monopoles, which are simultaneously excited through an associated feeding network. The radiated horizontal and vertical field components are derived based on an analytical model, and the 90° phase difference between them is shown to be naturally guaranteed. With a size of 0.22λ0× 0.22λ0× 0.076λ0 , the antenna exhibits a bandwidth (S11-10-dB and AR≤ 3-dB) of 3.56% and a left-handed CP average gain of 1.39 dB in the azimuth plane at 2.44 GHz.

Place, publisher, year, edition, pages
2012. Vol. 11, 1466-1469 p.
Keyword [en]
Bended monopole, circular polarization (CP), omnidirectional antenna
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-116198DOI: 10.1109/LAWP.2012.2231392ISI: 000312887000006Scopus ID: 2-s2.0-84871848171OAI: oai:DiVA.org:kth-116198DiVA: diva2:588939
Note

QC 20130116

Available from: 2013-01-16 Created: 2013-01-16 Last updated: 2017-12-06Bibliographically approved

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He, Sailing

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