DocumentCode
2089237
Title
Active varactor tunable microwave filters
Author
Chandler, S.R ; Hunter, I.C. ; Gardiner, J.G.
Author_Institution
Telecommunications Research Group, Dept. of Electronic & Electrical Eng. University of Bradford, Bradford, West Yorks., BD7 1DP, England. Tel: +44 274 733466 Fax: +44 274 391521
fYear
1993
fDate
6-10 Sept. 1993
Firstpage
244
Lastpage
245
Abstract
This paper presents measured results for active microwave bandstop and bandpass varactor tuned filters. These filter designs were based on the negative resistance method and were realised using microstrip with future MMIC implementation in mind. Tuning ranges of 0.3 and 0.6 octaves around a centre frequency of 1.8GHz were achieved. A significant improvement in filter performance was observed with results approaching those for lossless filters.
Keywords
Band pass filters; Electrical resistance measurement; Frequency; MMICs; Microstrip filters; Microwave filters; Microwave measurements; Performance loss; Tuning; Varactors;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1993. 23rd European
Conference_Location
Madrid, Spain
Type
conf
DOI
10.1109/EUMA.1993.336855
Filename
4136584
Link To Document