DocumentCode
1549696
Title
Quadrifilar conical helical antenna with travelling-wave current distribution
Author
Nakano, H. ; Ikeda, N. ; Yamauchi, J.
Author_Institution
Coll. of Eng., Hosei Univ., Tokyo, Japan
Volume
144
Issue
1
fYear
1997
fDate
2/1/1997 12:00:00 AM
Firstpage
53
Lastpage
55
Abstract
The radiation characteristics of a quadrifilar conical helix antenna are analysed. Special attention is paid to the generation of a circularly polarised wave over a hemispherical region above the antenna. The present antenna has wideband characteristics with respect to the radiation pattern and the input impedance by virtue of the radiation mechanism characterised by a travelling-wave current. The effects of the cone angle and the pitch angle on the radiation field are also investigated
Keywords
antenna radiation patterns; current distribution; electric impedance; electromagnetic wave polarisation; helical antennas; circularly polarised wave; cone angle; hemispherical region; input impedance; pitch angle; quadrifilar conical helical antenna; radiation characteristics; radiation field; radiation mechanism; travelling-wave current; travelling-wave current distribution; wideband characteristics;
fLanguage
English
Journal_Title
Microwaves, Antennas and Propagation, IEE Proceedings
Publisher
iet
ISSN
1350-2417
Type
jour
DOI
10.1049/ip-map:19970977
Filename
587066
Link To Document