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Cascaded suspended substrate stripline bandpass filter
Author(s) -
Alaqil Hassan,
Hong Jiasheng
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.31360
Subject(s) - band pass filter , passband , stripline , high pass filter , bandwidth (computing) , return loss , fractional bandwidth , materials science , insertion loss , electronic engineering , low pass filter , optoelectronics , engineering , electrical engineering , telecommunications , antenna (radio)
A new design of bandpass filter on a single layer implemented by using high Q suspended substrate stripline (SSS) structure is proposed. The designed filter is composed of cascaded highpass (HPF) and lowpass (LPF) filters, which forms a passband with a fractional bandwidth of 21.4% centered at 1.58 GHz and exhibits a very good selectivity through two transmission zeros. The simulated and measured results show a good agreement over the bandwidth with the in‐band insertion and return losses of 0.31 dB and 17.7 dB, respectively.