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Design and wideband spurious performance prediction for a mixed‐resonator combline/TE 01 ‐mode DR filter using FDTD
Author(s) -
Weily Andrew R.,
Mohan Ananda S.
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<266::aid-mop3>3.0.co;2-c
Subject(s) - resonator , finite difference time domain method , spurious relationship , microwave , acoustics , wideband , bandwidth (computing) , filter (signal processing) , dielectric resonator , helical resonator , electronic engineering , engineering , physics , computer science , electrical engineering , telecommunications , optics , machine learning
A four‐pole mixed‐resonator filter comprised of combline resonators and TE 01 ‐mode dielectric resonators (DRs) has been designed using the FDTD method so that only minimal tuning of the prototype is required. Resonant frequencies, interresonator coupling through rectangular slots, and unloaded Q ‐values are calculated for the DR and the combline resonator, and they compare extremely well with results available in the literature. S ‐parameters are computed over a large bandwidth to validate the improved spurious performance of the filter, and they give excellent agreement with measured results. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 23: 266–273, 1999.