Title :
Optimized microstrip filter with varactor-controlled tuning
Author :
Belyaev, B.A. ; Leksikov, An. A. ; Leksikov, An. A.
Author_Institution :
Inst. of Phys., Akademgorodok, Krasnoyarsk, Russia
Abstract :
A band-pass filter on the basis of irregular microstrip varactor-tuned resonators is studied. The amplitude of the tuning rises with growth of the impedance step between microstrip lines forming the resonator. Maximum of tuning takes place when the ratio of low-impedance part length to high-impedance part length reaches 1/2. Ability is demonstrated to design a filter with a constant absolute bandwidth on filter tuning.
Keywords :
band-pass filters; circuit optimisation; circuit tuning; design engineering; electric impedance; microstrip filters; microstrip resonators; varactors; band-pass filter; constant absolute bandwidth; filter design; high-impedance part length; impedance step; irregular microstrip varactor-tuned resonators; low-impedance part length; microstrip lines; optimized microstrip filter; tuning amplitude; tuning maximum; varactor-controlled tuning; MONOS devices; Microstrip filters;
Conference_Titel :
Microwave and Telecommunication Technology, 2004. CriMico 2004. 2004 14th International Crimean Conference on
Print_ISBN :
966-7968-69-3
DOI :
10.1109/CRMICO.2004.183295
