DocumentCode
1033293
Title
A curl antenna
Author
Nakano, H. ; Okuzawa, S. ; Ohishi, K. ; Mimaki, H. ; Yamauchi, J.
Author_Institution
Coll. of Eng., Hosei Univ., Koganei, Japan
Volume
41
Issue
11
fYear
1993
fDate
11/1/1993 12:00:00 AM
Firstpage
1570
Lastpage
1575
Abstract
A radiation element, designated as a curl antenna, is proposed for a circularly polarized antenna. The radiation characteristics of the curl are numerically analyzed. The gain is approximately 8.4 dB, and the 3-dB axial ratio criterion is 6.7%. Two aspects of curl array antennas are also presented: a decoupling factor between two curls and a circular array antenna consisting of 168 curls. Calculations show how the decoupling factor depends on the relative rotation angle of the two curls. The 168-curl array antenna shows a high aperture efficiency of 95%
Keywords
antenna arrays; antenna radiation patterns; electromagnetic wave polarisation; receiving antennas; 3-dB axial ratio; 8.4 dB; 95 percent; aperture efficiency; circularly polarized antenna; curl array antennas; decoupling factor; gain; radiation characteristics; radiation element; rotation angle; Antenna arrays; Aperture antennas; Conductors; Coplanar waveguides; Current distribution; Helical antennas; Patch antennas; Polarization; Satellite broadcasting; Spirals;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/8.267357
Filename
267357
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