DocumentCode
1306709
Title
Dual-band circularly polarised microstrip antennas with a single feed
Author
Sanchez-Hernandez, D. ; Passiopoulos, G. ; Ferrando, M. ; de los Reyes, E. ; Robertson, Ian D.
Author_Institution
Dept. of Electron. & Electr. Eng., King´s Coll., London
Volume
32
Issue
25
fYear
1996
fDate
12/5/1996 12:00:00 AM
Firstpage
2296
Lastpage
2298
Abstract
The authors present a novel technique for obtaining circularly polarised (CP) dual frequency operation by using two spur-link band-stop filters within the perimeter of a microstrip patch antenna with optimum feed point location and aspect ratio. This circularly polarised dual frequency operation can be obtained without increasing either the size or the thickness of the patch. Furthermore, through several experiments the authors also demonstrate that the location of the feed point establishes and controls a trade-off between axial ratio and impedance bandwidth
Keywords
antenna feeds; band-stop filters; electromagnetic wave polarisation; microstrip antennas; aspect ratio; axial ratio; circularly polarised dual frequency operation; feed point location; impedance bandwidth; microstrip patch antenna; single feed; spur-link band-stop filter;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19961586
Filename
555935
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