DocumentCode
828690
Title
Two-arm microstrip spiral antenna for multi-beam pattern control
Author
Kim, M. ; Choo, H. ; Park, I.
Author_Institution
Dept. of Electr. & Comput. Eng., Ajou Univ., Suwon, South Korea
Volume
41
Issue
11
fYear
2005
fDate
5/26/2005 12:00:00 AM
Firstpage
627
Lastpage
629
Abstract
A two-arm microstrip spiral antenna with a circular aperture on the ground plane for multi-beam pattern control is presented. Several beam shapes can be selected by controlling the phase difference of the two spiral arms with the pin diode phase shifters located on each feedline. At the operating frequency band, the antenna has four different radiation patterns: the normal beam, the conical beam, and the two tilted beams. The multi-beam pattern control is confirmed with measurements.
Keywords
antenna radiation patterns; microstrip antennas; p-i-n diodes; phase shifters; spiral antennas; beam shapes; circular aperture; conical beam; multibeam pattern control; normal beam; operating frequency band; phase difference; pin diode phase shifters; radiation patterns; spiral antenna; spiral arms; tilted beams; two-arm microstrip antenna;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20051110
Filename
1437863
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