Title :
On coupled-resonator filters with tunable bandwidth
Author :
Wohler, M.K. ; Jaschke, A. ; Schuhler, M.
Author_Institution :
RF & SatCom Syst. Dept., Fraunhofer IIS, Erlangen, Germany
Abstract :
We present a tunable bandpass filter in parallel structure in comparison to a tunable filter in serial structure. The filters are tunable in bandwidth with a constant center frequency. The investigations are based on coupled-resonators bandpass filters. The approach of a parallel topology can be adopted for filter tunable in the center frequency, allowing for a fully tunable frequency response.
Keywords :
band-pass filters; coupled circuits; frequency response; coupled-resonators bandpass filters; fully tunable frequency response; parallel structure; serial structure; tunable bandpass filter; Bandwidth; Couplings; Frequency response; Radio frequency; Resonant frequency; Topology; Tuning; coupled resonators; filter topology; gain variations; lumped elements; symmetrical tunable bandwidth;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2015 IEEE
Conference_Location :
San Diego, CA
DOI :
10.1109/RWS.2015.7129757
