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A CPW-fed broadband circularly polarized wide slot antenna with modified shape of slot and modified feeding structure
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. Zhejiang University, Chaina.
2016 (English)In: Microwave and optical technology letters (Print), ISSN 0895-2477, E-ISSN 1098-2760, Vol. 58, no 6, 1453-1457 p.Article in journal (Refereed) PublishedText
Abstract [en]

A low-profile, compact, concisely designed CPW-fed broadband circularly polarized wide slot antenna is proposed. By protruding the ground into the wide slot, the distribution of equivalent magnetic currents inside the slot is changed. Together with appropriate adjustment of the feeding structure, broad impedance bandwidth and broad axial ratio bandwidth (ARBW) can be achieved simultaneously. General design steps are given so that the antenna can be easily transplanted to other bands. The measured results show that the 3 dB ARBW is 1.85-3.15 GHz (52%) and the impedance bandwidth is 1.35-4.12 GHz (101.3%). Detailed design procedures and key parameters analysis are also given for further understanding of the antenna design. 

Place, publisher, year, edition, pages
John Wiley & Sons, 2016. Vol. 58, no 6, 1453-1457 p.
Keyword [en]
axial ratio, broadband antenna, circularly polarized, wide slot antenna
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-185594DOI: 10.1002/mop.29817ISI: 000373107700045ScopusID: 2-s2.0-84961707447OAI: oai:DiVA.org:kth-185594DiVA: diva2:924043
Note

QC 20160427

Available from: 2016-04-27 Created: 2016-04-25 Last updated: 2016-04-27Bibliographically approved

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