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On coupled-resonator filters with tunable bandwidth

: Wohler, M.K.; Jaschke, A.; Schühler, M.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE Radio and Wireless Symposium, RWS 2015. Proceedings : 25-28 January 2015; San Diego, California
Piscataway, NJ: IEEE, 2015
ISBN: 978-1-4799-5507-7
ISBN: 978-1-4799-5506-0
ISBN: 978-1-4799-5505-3
Radio and Wireless Symposium (RWS) <2015, San Diego/Calif.>
Fraunhofer IIS ()

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.