DocumentCode
2182835
Title
Wideband reflector for Archimedean spiral antenna
Author
Djoma, Christopher ; Begaud, Xavier ; Lepage, Anne Claire ; Mallégol, Stéphane ; Jousset, Michel
fYear
2012
fDate
26-30 March 2012
Firstpage
776
Lastpage
780
Abstract
This paper presents the benefits of a Perfect Electric Conductor (PEC) used as a reflector for an Archimedean spiral antenna. Such a configuration can improve the broadside gain of 3dB over a theoretical relative bandwidth of 133%, with a thickness of only λ/12 at the lowest operating frequency. A prototype of an Archimedean two-wire spiral antenna has been built to operate from 1GHz to 10GHz and placed 10 mm above a conducting plane reflector. Measurements results gave a relative bandwidth of 110%, in which the broadside RHCP gain is improved.
Keywords
UHF antennas; microwave antennas; reflector antennas; spiral antennas; Archimedean spiral antenna; frequency 1 GHz to 10 GHz; perfect electric conductor; two wire spiral antenna; wideband reflector antenna; Antenna measurements; Bandwidth; Broadband antennas; Reflector antennas; Spirals; Archimedean spiral antenna; perfect electric conductor; wideband reflector;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location
Prague
Print_ISBN
978-1-4577-0918-0
Electronic_ISBN
978-1-4577-0919-7
Type
conf
DOI
10.1109/EuCAP.2012.6206145
Filename
6206145
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