Compact spiral band pass filter with low group delay

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...

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Bibliographic Details
Published in:Microwave and optical technology letters 2018-04, Vol.60 (4), p.1030-1033
Main Authors: Noraei Yeganeh, Ali, Sedighy, Seyed Hassan
Format: Article
Language:English
Subjects:
band pass filter
Bandpass filters
Broadband
Delay
Group delay
Insertion loss
Repair & maintenance
spiral filter
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Summary: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 λg 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.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.31103