DocumentCode
2147891
Title
Broadband matching of small antennas using negative impedance converters
Author
Tade, O.O. ; Gardner, P. ; Hall, P.S.
Author_Institution
Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK
fYear
2012
fDate
8-14 July 2012
Firstpage
1
Lastpage
2
Abstract
Small antennas with wide instantaneous bandwidth are vital in mobile Cognitive radio nodes or transceivers. The fundamental limit of small antennas is a problem which passive matching cannot solve. Non-Foster matching provides a solution to this problem. In this paper, we show a negative impedance converter that provides a negative capacitor up to 1.5GHz and use it to match a small chassis antenna. This improves the Q of the antenna beyond what is achievable with passive matching.
Keywords
antennas; impedance convertors; impedance matching; broadband matching; negative capacitor; negative impedance converter; passive matching; small antenna; small chassis antenna; Antenna measurements; Broadband antennas; Impedance; Loss measurement; Transmission line measurements; Wideband; Electrically small antenna; cognitive radio; non-Foster matching networks;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location
Chicago, IL
ISSN
1522-3965
Print_ISBN
978-1-4673-0461-0
Type
conf
DOI
10.1109/APS.2012.6348833
Filename
6348833
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