DocumentCode
1143849
Title
Tunable Filters With Nonuniform Microstrip Coupled Lines
Author
Koochakzadeh, Masoud ; Abbaspour-Tamijani, Abbas
Author_Institution
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ
Volume
18
Issue
5
fYear
2008
fDate
5/1/2008 12:00:00 AM
Firstpage
314
Lastpage
316
Abstract
A basic wideband tunable filter design based on combline topology is presented. At the presence of the parasitic effects, the structure of the filter must be modified by introducing additional degrees of freedom to the geometry of the coupled line segment. A design procedure involving iterative steps will be described. This procedure is used to design two bandpass filters with more than one octave tuning range in the UHF band. The experimental results are presented for the filter prototypes implemented using printed circuit boards and PIN diodes.
Keywords
band-pass filters; microstrip couplers; PIN diodes; bandpass filters; nonuniform microstrip coupled lines; octave tuning range; parasitic effects; printed circuit boards; tunable filters; wideband tunable filter design; Intermodulation; PIN diodes; nonlinearity; software defined radio; switchable filters; tunable filters;
fLanguage
English
Journal_Title
Microwave and Wireless Components Letters, IEEE
Publisher
ieee
ISSN
1531-1309
Type
jour
DOI
10.1109/LMWC.2008.922115
Filename
4497812
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