This paper appears in: Microwave Theory and Techniques, IEEE Transactions on
Publication Date: Sep. 1982
Volume: 30,
Issue: 9
On page(s): 1361-1367
ISSN: 0018-9480
Digital Object Identifier: 10.1109/TMTT.1982.1131261
Current Version Published: 2003-01-06
Abstract
The design procedures for varactor tuned bandstop filters are presented. A novel circuit technique for realizing bandstop filters with a symmetrical frequency response is described and explicit design formulas are presented. The physical design and experimental performance of a three cavity varactor tuned bandstop filter tunable around 4 GHz is presented. Experimental results are substantiated with computer analysis which includes the effects of varactor resistance.
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