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Title: Two Topologies of Balanced Dual-Band Bandpass Filters with Extended Common-Mode-Suppression Bandwidth
Two architectures of fully-planar differential-mode dual-band bandpass filters (DB-BPFs) with enlarged common-mode-suppression bandwidth are reported. The first one, which aims at designs with broadly-separated wide passbands, exploits the loading of extra lines in its balanced symmetry plane. Thus, multiple common-mode transmission zeros (TZs) are created to make wider the DB-BPF common-mode-rejection range. The second one can be used for realizations with closely-spaced passbands and employs a properly-balanced quasi-bandpass-type DB-BPF topology. In this case, the common-mode-mitigation bandwidth broadening is performed by adequately selecting the type of implementation for the short-circuit terminations of its resonating lines- i.e., virtual or physical short circuits in the differential-mode operation-. For experimental-validation purposes, two microstrip DB-BPF prototypes are manufactured and tested.  more » « less
Award ID(s):
1731956
PAR ID:
10106146
Author(s) / Creator(s):
; ; ;
Date Published:
Journal Name:
2019 IEEE Radio and Wireless Symposium (RWS)
Page Range / eLocation ID:
1 to 4
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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