An Ultrawideband Common-Mode Filter with Cascaded Mushroom-like Structures
Journal
2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021
Date Issued
2021
Author(s)
Abstract
An ultrawideband common-mode filter (CMF) composed of two mushroom-like stages is proposed. A circuit model is provided. We explain how cascading two mushroom-like stages enhances the bandwidth of the common-mode (CM) stopband. Both circuit and full-wave simulations are conducted, and a wide CM stopband is achieved. The proposed CMF is fabricated on a printed circuit board (PCB) with three metal layers. The measured results show that the CM noise is suppressed over 10 dB from 1.68 GHz to 12.44 GHz, and the fractional bandwidth (FBW) is 152%, which is larger than that of other similar works. ? 2021 IEEE.
Subjects
Common-mode filter (CMF)
differential signaling
electromagnetic interference (EMI)
Bandwidth
Electromagnetic pulse
Printed circuit boards
Circuit modeling
Circuit waves
Common-mode filter
Common-mode filters
Commonmode
Differential signaling
Electromagnetic interference
Electromagnetics
Full-wave simulations
Stopband
Ultra-wideband (UWB)
SDGs
Type
conference paper