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Designing multiband coupled‐resonator filters using reactance transformations
Author(s) -
Brand Tobias Gerhardus,
Meyer Petrie,
Geschke Riana Helena
Publication year - 2015
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20826
Subject(s) - reactance , resonator , microwave , electronic engineering , bandwidth (computing) , band pass filter , distributed element filter , topology (electrical circuits) , computer science , prototype filter , low pass filter , engineering , electrical engineering , telecommunications , voltage
A method of constructing multiband filtering functions from single‐band functions using rational reactance mapping functions is presented. The technique can be applied to coupled‐resonator filters with N pass‐bands, each of arbitrary bandwidth and centre frequency. The resulting filter topologies are simple to implement and do not introduce cross‐couplings beyond that of the original low‐pass prototype. © 2014 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:81–92, 2015.