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Compact UWB microstrip lowpass filter with novel CMRC
Author(s) -
Zhang Fei,
Li Chengfang
Publication year - 2007
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.20236
Subject(s) - stopband , passband , microstrip , transition band , insertion loss , microwave , filter (signal processing) , band stop filter , low pass filter , electronic engineering , materials science , acoustics , optics , band pass filter , optoelectronics , physics , computer science , engineering , telecommunications , prototype filter , electrical engineering
A novel beeline compact microstrip resonant cell, entitled BCMRC (beeline compact microstrip resonant cell), is firstly proposed and analyzed. The photonic bandgap and slow‐wave effect of the BCMRC are evaluated. The compact configuration presents ultrawide stopband and improved slow‐wave characteristics. Investigation of its scattering/radiation level is also included. An ultrawide band lowpass filter, consisting of three BCMRCs connected in series, is designed and fabricated. The filter has the advantages of low insertion loss in the passband, sharp, high and wide rejection in the stopband and compact size. The experimental results show good agreements with simulation results. © 2007 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2007.