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Pure harmonic suppression of a bandpass filter using binomially distributed photonic bandgap structures
Author(s) -
Mollah Md. Nurunnabi,
Karmakar Nemai Chandra
Publication year - 2004
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/mop.20584
Subject(s) - harmonics , band pass filter , harmonic , microwave , harmonic analysis , electronic engineering , physics , topology (electrical circuits) , engineering , electrical engineering , optoelectronics , acoustics , telecommunications , voltage
Binomially distributed photonic band‐gap structures (B‐PBGSs) are applied to a four‐section asymmetric coupled‐line bandpass filter (BPF) at 15 GHz for harmonics suppression. The frequency response of the BPF on B‐PBGSs is compared with that for the same BPF on uniform PBGSs (U‐PBGSs). The proposed B‐PBGSs structures provide complete harmonic suppression in both transmission and return loss (RL) responses. The BPF on B‐PBGSs produces 18‐dB more harmonics suppression with negligible RL at 15 GHz, compared to the same BPF on U‐PBGSs. Promising applications include complete harmonics suppression in filters and patch antennas and savings of space and packaging costs in HMICs and MMICs. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 194–196, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20584