Title :
Tunable combline bandstop filter with constant bandwidth
Author :
Abunjaileh, Alaa I. ; Hunter, Ian C.
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK
Abstract :
A new method for the design of tunable bandstop filters is presented. It is based on a dual-band combline structure consisting of a wideband bandpass filter with integrated bandstop filter. The bandstop filter exhibits the very useful property that its bandwidth remains constant as the center frequency is tuned, without the need for coupling adjustment. A prototype design has been constructed, and measured results clearly demonstrate the principle.
Keywords :
band-pass filters; band-stop filters; circuit tuning; coupling adjustment; dual-band combline structure; integrated bandstop filter; tunable combline bandstop filter design; wideband bandpass filter; Adaptive filters; Band pass filters; Bandwidth; Coupling circuits; Dual band; Frequency; Prototypes; Resonator filters; Tunable circuits and devices; Wideband; Adaptive Filters; Bandstop filters; Filters; Tunable filters;
Conference_Titel :
Microwave Symposium Digest, 2009. MTT '09. IEEE MTT-S International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2803-8
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2009.5165955
