Title :
Combline filter with tunable bandwidth and centre frequency
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 bandpass filters is presented. It is based on a dual-band combline structure. One of the passband responses centre frequency and bandwidth can be tuned without the need for coupling adjustment, while the other passband can be shifted up in frequency or filtered out. A prototype design has been constructed, and measured results shows wide tuning range and over 300% bandwidth adjustment range, clearly demonstrate the principle.
Keywords :
band-pass filters; comb filters; centre frequency; combline filter; coupling adjustment; dual-band combline structure; tunable bandpass filters; tunable bandwidth; Band pass filters; Bandwidth; Coupling circuits; Dual band; Frequency; Passband; Prototypes; Resonator filters; Tunable circuits and devices; Tuning; Adaptive Filters; Bandpass filters; Circuit Synthesis; Filters; Tunable filters;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5517885
