PCB structures for common mode suppression on differential microstrip lines

Qian Liu; Shuai Xu; David Pommerenke

doi:10.1109/ISEMC.2014.6899029

PCB structures for common mode suppression on differential microstrip lines

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

Common mode noise on differential microstrip lines can be suppressed by PCB embedded filters. These filters are basically resonators, and only the common mode signal can couple to them. Though such structure suppress common mode signal only in narrow bands because of the resonant nature, they can be combined to produce broadband filtering effect. The dimension of such filters could be further reduced by adding lumped elements. In this paper, design principles of the PCB filters are given, and examples are given to demonstrate these rules. At last, a new PCB filter structure is proposed with an electrical size of only 0.04λ×0.067λ which is capable of suppressing the higher order harmonics of common mode signal.

Original language	English
Title of host publication	2014 IEEE International Symposium on Electromagnetic Compatibility (EMC)
Pages	533-537
Number of pages	5
DOIs	https://doi.org/10.1109/ISEMC.2014.6899029
Publication status	Published - 15 Sept 2014
Externally published	Yes
Event	2014 IEEE International Symposium on Electromagnetic Compatibility: EMC 2014 - Raleigh, United States Duration: 3 Aug 2014 → 8 Aug 2014

Conference

Conference	2014 IEEE International Symposium on Electromagnetic Compatibility
Country/Territory	United States
City	Raleigh
Period	3/08/14 → 8/08/14

Keywords

Common mode filter
differential signal
lower resonant frequency
quarter-wavelength

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/ISEMC.2014.6899029

Cite this

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title = "PCB structures for common mode suppression on differential microstrip lines",

abstract = "Common mode noise on differential microstrip lines can be suppressed by PCB embedded filters. These filters are basically resonators, and only the common mode signal can couple to them. Though such structure suppress common mode signal only in narrow bands because of the resonant nature, they can be combined to produce broadband filtering effect. The dimension of such filters could be further reduced by adding lumped elements. In this paper, design principles of the PCB filters are given, and examples are given to demonstrate these rules. At last, a new PCB filter structure is proposed with an electrical size of only 0.04λ×0.067λ which is capable of suppressing the higher order harmonics of common mode signal.",

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doi = "10.1109/ISEMC.2014.6899029",

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AU - Liu, Qian

AU - Xu, Shuai

AU - Pommerenke, David

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N2 - Common mode noise on differential microstrip lines can be suppressed by PCB embedded filters. These filters are basically resonators, and only the common mode signal can couple to them. Though such structure suppress common mode signal only in narrow bands because of the resonant nature, they can be combined to produce broadband filtering effect. The dimension of such filters could be further reduced by adding lumped elements. In this paper, design principles of the PCB filters are given, and examples are given to demonstrate these rules. At last, a new PCB filter structure is proposed with an electrical size of only 0.04λ×0.067λ which is capable of suppressing the higher order harmonics of common mode signal.

AB - Common mode noise on differential microstrip lines can be suppressed by PCB embedded filters. These filters are basically resonators, and only the common mode signal can couple to them. Though such structure suppress common mode signal only in narrow bands because of the resonant nature, they can be combined to produce broadband filtering effect. The dimension of such filters could be further reduced by adding lumped elements. In this paper, design principles of the PCB filters are given, and examples are given to demonstrate these rules. At last, a new PCB filter structure is proposed with an electrical size of only 0.04λ×0.067λ which is capable of suppressing the higher order harmonics of common mode signal.

KW - Common mode filter

KW - differential signal

KW - lower resonant frequency

KW - quarter-wavelength

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M3 - Conference paper

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BT - 2014 IEEE International Symposium on Electromagnetic Compatibility (EMC)

T2 - 2014 IEEE International Symposium on Electromagnetic Compatibility

Y2 - 3 August 2014 through 8 August 2014

ER -

PCB structures for common mode suppression on differential microstrip lines

Abstract

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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