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Binomially distributed photonic band gap (B-PBG) structures are applied to a 4-section asymmetric coupled line band pass filter (BPF) at 15 GHz for harmonics suppression. The frequency response of the BPF on B-PBG is compared with that for the same BPF on uniform PBGs (U-PBGs). It is seen that B-PBG structures provide complete harmonic suppression in both transmission and return loss responses. BPF on B-PBGs produces 18 dB more harmonics suppression with zero return loss at 15 GHz compared to those for the same BPF on UPBGs. The proposed B-PBG structure finds promising applications for complete harmonics suppression in filters and patch antennas and saves space and packaging cost in HMICs and MMICs.
Antennas and Propagation Society International Symposium, 2003. IEEE (Volume:4 )
Date of Conference: 22-27 June 2003