DocumentCode
2158917
Title
Consideration on radiation from an unbalanced-mode spiral antenna
Author
Nakano, H. ; Igarashi, T. ; Suzuki, R. ; Iitsuka, Y. ; Yamauchi, J.
Author_Institution
Coll. of Eng., Hosei Univ., Koganei
fYear
2008
fDate
2-5 Nov. 2008
Firstpage
211
Lastpage
214
Abstract
This paper describes the radiation from an unbalanced-mode two-arm spiral antenna, where the antenna arms are defined by the Archimedean spiral function. The input impedance, current distribution, radiation pattern, axial ratio, and gain are investigated. The investigation reveals that the unbalanced-mode spiral radiates a circularly polarized wave over a wide frequency range as the balanced-mode spiral.
Keywords
antenna radiation patterns; spiral antennas; Archimedean spiral function; axial ratio; current distribution; gain; input impedance; radiation pattern; unbalanced-mode spiral antenna; Arm; Circuits; Coaxial components; Directive antennas; Feeds; Frequency; Impedance matching; Magnetic analysis; Polarization; Spirals;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location
Kunming
Print_ISBN
978-1-4244-2192-3
Electronic_ISBN
978-1-4244-2193-0
Type
conf
DOI
10.1109/ISAPE.2008.4735179
Filename
4735179
Link To Document