Title :
Bandpass filter with tunable bandwidth and center frequency based on varactor diodes
Author :
Reck, Christoph ; Trommer, Ralph ; Schmidt, Lorenz-Peter
Author_Institution :
Dept. for High Freq. Technol., Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
The focus of this work is the construction of a bandpass filter fully electronically tunable in bandwidth and center frequency by combining modified combline and split ring resonator structures loaded by varactor diodes. It is shown how separate tuning of the assembled varactors can be used to significantly alter filter bandwidths. A design with large tuning range from 800 to 1300 MHz in combination with moderate insertion loss is presented.
Keywords :
band-pass filters; diodes; resonators; varactors; bandpass filter; center frequency; frequency 1300 MHz; frequency 800 MHz; insertion loss; split ring resonator structure; tunable bandwidth; varactor diode; Bandwidth; Couplings; Microwave filters; Passband; Resonant frequency; Tuning; Varactors; bandpass; tunable bandwidth; tunable filter; varactor diodes;
Conference_Titel :
Microwave Conference (GeMIC), 2011 German
Conference_Location :
Darmstadt
Print_ISBN :
978-1-4244-9225-1
Electronic_ISBN :
978-3-9812668-3-2
