Title
Bandpass Filter With Ultra-Wide Upper Stopband on GaAs IPD Technology
Abstract
In this brief, a novel bandpass filter (BPF) with ultra-wide upper stopband performance is proposed and implemented on gallium arsenide (GaAs) integrated passive device (IPD) technology. Firstly, the proposed BPF is designed by introducing a <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\boldsymbol{\pi }$ </tex-math></inline-formula> -section to achieve an ultra-wide upper stopband. Following that, the working principle of achieving this ultra-wideband upper stopband performance is further investigated. Finally, to demonstrate the claimed performances, this BPF with a size of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$1.63 {\mathrm {\times }}0.62$ </tex-math></inline-formula> mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> has been fabricated on GaAs IPD technology and measured by on-wafer probing. The measured BPF with a 3-dB fractional bandwidth (FBW) of 95.3% (1.7-4.8 GHz), exhibits the expected performances, especially the superior upper stopband suppression level better than 20 dB until 110 GHz (34.6 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${f} _{0}$ </tex-math></inline-formula> ). The simulated and measured results of the BPF are in reasonably good agreement, thus firmly validating the claimed superior performances of the BPF in terms of good frequency selectivity and ultra-wide upper stopband.
Year
DOI
Venue
2022
10.1109/TCSII.2021.3096936
IEEE Transactions on Circuits and Systems II: Express Briefs
Keywords
DocType
Volume
Bandpass filter,integrated passive device (IPD),ultra-wide upper stopband
Journal
69
Issue
ISSN
Citations 
2
1549-7747
0
PageRank 
References 
Authors
0.34
0
8
Name
Order
Citations
PageRank
Yan Jiang100.34
Lin-Ping Feng200.34
Haoshen Zhu322.46
Wenjie Feng44512.75
Haidong Chen500.34
Yongrong Shi600.34
Wenquan Che700.68
Quan Xue8147.84