Numerical analysis of a dual-spiral printed antenna

H. Nakano, K. Hirose

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


A dual-spiral antenna printed on a dielectric substrate is numerically analysed. The radiation characteristics such as the radiation pattern, axial ratio, and radiation efficiency are calculated on the basis of the current distribution. It is revealed that, when the dielectric substrate allows only a single surface wave mode to exist, the dual-spiral antenna has a high radiation efficiency (73%) over a wide frequency range (8.4 %), radiating a circularly polarised wave. Further calculation show that the radiation efficiency rapidly decreases, when a second surface wave mode (TE1) appears.

Original languageEnglish
Title of host publicationIEE Conference Publication
Editors Anon
PublisherPubl by IEE
Number of pages15
Edition370 pt 2
ISBN (Print)0852965710
Publication statusPublished - 1993 Dec 1
Externally publishedYes
Event8th International Conference on Antennas and Propagation. Part 2 (of 2) - Edinburgh, Scotl
Duration: 1993 Mar 301993 Apr 2

Publication series

NameIEE Conference Publication
Number370 pt 2
ISSN (Print)0537-9987


Other8th International Conference on Antennas and Propagation. Part 2 (of 2)
CityEdinburgh, Scotl

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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