DocumentCode
834840
Title
Dual-frequency microstrip antenna with dual circular polarisation
Author
Cai, C.-H. ; Row, J.-S. ; Wong, K.L.
Author_Institution
Dept. of Electr. Eng., Nat. Changhua Univ. of Educ., Chang-Hua
Volume
42
Issue
22
fYear
2006
Firstpage
1261
Lastpage
1262
Abstract
A single-feed dual-frequency microstrip patch antenna that can produce dual circular polarisations (CP) is presented. The microstrip antenna has an annular-ring patch and is excited by an L-shaped microstrip line through the coupling of a ring slot in the ground plane. The occurrence of the dual CP is because the magnetic currents circulating along the ring slot at two specific frequencies have opposite flowing directions. Both simulated and measured results are provided to validate the CP performance of the proposed antenna
Keywords
antenna feeds; electromagnetic wave polarisation; microstrip antennas; microstrip lines; multifrequency antennas; L-shaped microstrip line; dual circular polarisation; dual-frequency antenna; magnetic currents; microstrip antenna; patch antenna; ring slot; single-feed antenna;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20062537
Filename
4015904
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