A dipole-fed multi-band spiral antenna

A novel structure of multi-polarization spiral antennas is presented. The spiral antenna radiates not only linearly polarized waves but also circularly polarized waves simultaneously without phase shifters. In this paper, the way to tune the antenna into three bands, GPS and two mobile phone bands,...

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Bibliographic Details
Published inDigest - IEEE Antennas and Propagation Society. International Symposium (1995) pp. 940 - 941
Main Author Matsunaga, Mayumi
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 01.07.2013
Subjects
Antenna radiation patterns
Antennas
Bands
Cell phones
Circularity
Dipole antennas
Meetings
Mobile antennas
Phase shifters
Radio
Resonant frequency
Simulation
Spiral antennas
Spirals
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Summary:A novel structure of multi-polarization spiral antennas is presented. The spiral antenna radiates not only linearly polarized waves but also circularly polarized waves simultaneously without phase shifters. In this paper, the way to tune the antenna into three bands, GPS and two mobile phone bands, is delineated. The return-loss characteristics as regards various lengths of the appropriate elements that can control utilized frequencies of the antenna are discussed to show that the antenna can be tuned into multi-bands. The return-loss and radiation patterns are delineated by comparing simulation results and measurement results. These results show that the antenna radiates good circularly polarized waves as well as good linearly polarized waves at a GPS and mobile phone bands, respectively.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Conference-1
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SourceType-Conference Papers & Proceedings-2
ISSN:1522-3965
DOI:10.1109/APS.2013.6711129