DocumentCode
1766787
Title
Four-arm sinuous antenna for direction finding system
Author
Zhang, H.S. ; Xiao, K. ; Qiu, Lei ; Chai, S.L.
Author_Institution
Coll. of Electron. Sci. & Eng, Nat. Univ. of Defense Technol. Changsha, Changsha, China
fYear
2014
fDate
24-26 March 2014
Firstpage
1
Lastpage
4
Abstract
This paper proposes a feeding method for four-arm sinuous antenna, which is realized by using microstrip printed board welded on metal pyramid. It is an effective way to solve the problem of input impedance transformation and broadband balun. Then a four-arm sinuous antennas working at 0.4GHz to 2GHz is given, the measured results of VSWR and radiation pattern show that the feed form is reliable and effective, and the antenna has excellent performance in the operating bandwidth.
Keywords
UHF antennas; antenna feeds; antenna radiation patterns; baluns; microstrip antennas; radio direction-finding; VSWR; broadband balun; direction finding system; feeding method; four-arm sinuous antenna; frequency 0.4 GHz to 2 GHz; input impedance transformation; metal pyramid; microstrip printed board; radiation pattern; Antenna feeds; Antenna measurements; Broadband antennas; Impedance; Four-arm sinuous antenna; broadband; impedance transformation; polarization;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Symposium (IWS), 2014 IEEE International
Conference_Location
X´ian
Type
conf
DOI
10.1109/IEEE-IWS.2014.6864258
Filename
6864258
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