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Compact spiral band pass filter with low group delay
Author(s) -
Noraei Yeganeh Ali,
Sedighy Seyed Hassan
Publication year - 2018
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.31103
Subject(s) - insertion loss , group delay and phase delay , bandwidth (computing) , center frequency , filter (signal processing) , wideband , passband , electronic engineering , spiral (railway) , low pass filter , high pass filter , band pass filter , physics , computer science , engineering , telecommunications , electrical engineering , optics , mechanical engineering
A complementary coupled spiral transmission line with center via is proposed to design band pass filter with compact and simple profile, low group delay, and low insertion loss. A compact wideband band pass filter is designed and fabricated for demonstration which has 26% bandwidth, 0.3 dB insertion loss, and compact size as 0.41 × 0.23 λ g with very low group delay, 0.28 ns. These good specifications prove the capability of the proposed approach to design of band pass filter compared with the literatures.