DocumentCode
872942
Title
Single-arm spiral slot antenna fed by a triplate transmission line
Author
Nakano, Hisamatsu ; Nakayama, Keisuke ; Mimaki, H. ; Yamauchi, Junji ; Hirose, Keikichi
Author_Institution
Coll. of Eng., Hosei Univ., Tokyo, Japan
Volume
28
Issue
22
fYear
1992
Firstpage
2088
Lastpage
2090
Abstract
A spiral slot antenna consisting of a single arm is etched into the upper plate of a triplate transmission line. Power on a feed strip line located between the upper and lower plates of the triplate is electromagnetically coupled to the spiral slot. The configuration of the spiral slot is optimised for radiation of a circularly polarised wave. An array antenna consisting of spiral slots, to which a pair-element technique is applied, shows wideband characteristics for the return loss and axial ratio.
Keywords
antenna feeders; electromagnetic wave polarisation; frequency response; microstrip antennas; microwave antenna arrays; slot antennas; array antenna; axial ratio; circularly polarised wave; electromagnetically coupled; feed strip line; pair-element technique; return loss; single arm; spiral slot antenna; triplate transmission line; wideband characteristics;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19921339
Filename
204599
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