DocumentCode
247223
Title
Matching two-arm spiral impedance without balun
Author
Anthony, Theodore K. ; Zaghloul, Amir I.
Author_Institution
US Army Res. Lab., Adelphi, MD, USA
fYear
2014
fDate
6-11 July 2014
Firstpage
1325
Lastpage
1326
Abstract
Spiral antennas can be designed to cover decades of bandwidth (e.g. 350-8350 MHz). Connecting the antenna directly to the coaxial cable without a balun would reduce fabrication costs without sacrificing realized gain. This paper shows how two-arm spiral antennas can be designed to have a broadband impedance close to 50 Ohms, rather than the traditional 180 Ohms, without the need to make and attach a balun.
Keywords
UHF antennas; coaxial cables; impedance matching; microwave antennas; spiral antennas; broadband impedance; coaxial cable; fabrication cost reduction; frequency 350 MHz to 8350 MHz; spiral antennas; two-arm spiral antennas; two-arm spiral impedance matching; Broadband antennas; Coaxial cables; Impedance; Impedance matching; Spirals;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location
Memphis, TN
ISSN
1522-3965
Print_ISBN
978-1-4799-3538-3
Type
conf
DOI
10.1109/APS.2014.6904988
Filename
6904988
Link To Document