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Pseudoelliptic bandpass filter realization using attenuation pole resonator
Author(s) -
Huang ChengLiang,
Tsai JsungTa
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19991205)23:5<275::aid-mop5>3.0.co;2-8
Subject(s) - band pass filter , passband , attenuation , filter (signal processing) , m derived filter , electronic engineering , prototype filter , resonator , waveguide filter , acoustics , voltage controlled filter , high pass filter , filter design , elliptic filter , electronic filter topology , engineering , low pass filter , physics , electrical engineering , optics
A bandpass filter composed of a conventional combline filter and an attenuation pole resonator (APR) is investigated. The transmission zero of the combline filter combines with the attenuation pole of the resonator to perform the pseudoelliptic function filter response. Without any additional lump element or cross coupling, the filter demonstrates sharp roll‐off response over the passband edges. Compact size has also been accomplished due to the simple structure. The measured frequency response agrees well with the simulation results. It shows good performance capability for the application of wireless communication. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 23: 275–277, 1999.