Highly symmetric filter for a fully differential receive chain

J. Schumacher; A. Malhotra; K. Gräfe; T. M. Buzug

doi:10.18416/IJMPI.2020.2009031

Highly symmetric filter for a fully differential receive chain

J. Schumacher^*, A. Malhotra, K. Gräfe, T. M. Buzug

^*Corresponding author for this work

Institute of Medical Engineering

4 Citations (Scopus)

Abstract

Differential signaling can provide a higher fidelity of the receive signals in MPI, which is especially important for mobile scanner setups not being operated in a shielding room. A passive, highly symmetrical filter is presented as a part of the fully differential receive chain of the scanner setup. Due to the combined use with a gradiometric receive coil, the requirements for the components in terms of voltage and current specifications can be lowered which allows for partly building the filter on a PCB with well-matched SMD capacitors and trace lengths. The achieved attenuation for the differential-mode excitation field feedthrough is 77 dB while providing a common-mode rejection of more than 49 dB throughout the receive bandwidth.

Original language	English
Article number	2009031
Journal	International Journal on Magnetic Particle Imaging
Volume	6
Issue number	2
Pages (from-to)	1-3
Number of pages	3
ISSN	2365-9033
DOIs	https://doi.org/10.18416/IJMPI.2020.2009031
Publication status	Published - 02.09.2020

Funding

The authors thankfully acknowledge the financial support by the German Research Foundation (DFG, grant number BU 1436/9-1).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being
SDG 9 Industry, Innovation, and Infrastructure

Access to Document

10.18416/IJMPI.2020.2009031

Cite this

@article{578e5c2a39e3403495a2298f5c5c3966,

title = "Highly symmetric filter for a fully differential receive chain",

abstract = "Differential signaling can provide a higher fidelity of the receive signals in MPI, which is especially important for mobile scanner setups not being operated in a shielding room. A passive, highly symmetrical filter is presented as a part of the fully differential receive chain of the scanner setup. Due to the combined use with a gradiometric receive coil, the requirements for the components in terms of voltage and current specifications can be lowered which allows for partly building the filter on a PCB with well-matched SMD capacitors and trace lengths. The achieved attenuation for the differential-mode excitation field feedthrough is 77 dB while providing a common-mode rejection of more than 49 dB throughout the receive bandwidth.",

author = "J. Schumacher and A. Malhotra and K. Gr{\"a}fe and Buzug, \{T. M.\}",

note = "Funding Information: The authors thankfully acknowledge the financial support by the German Research Foundation (DFG, grant number BU 1436/9-1). Publisher Copyright: {\textcopyright} 2020 Schumacher et al.; licensee Infinite Science Publishing GmbH. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

month = sep,

day = "2",

doi = "10.18416/IJMPI.2020.2009031",

language = "English",

volume = "6",

pages = "1--3",

journal = "International Journal on Magnetic Particle Imaging",

issn = "2365-9033",

publisher = "Infinite Science Publishing",

number = "2",

}

TY - JOUR

T1 - Highly symmetric filter for a fully differential receive chain

AU - Schumacher, J.

AU - Malhotra, A.

AU - Gräfe, K.

AU - Buzug, T. M.

N1 - Funding Information: The authors thankfully acknowledge the financial support by the German Research Foundation (DFG, grant number BU 1436/9-1). Publisher Copyright: © 2020 Schumacher et al.; licensee Infinite Science Publishing GmbH. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/9/2

Y1 - 2020/9/2

N2 - Differential signaling can provide a higher fidelity of the receive signals in MPI, which is especially important for mobile scanner setups not being operated in a shielding room. A passive, highly symmetrical filter is presented as a part of the fully differential receive chain of the scanner setup. Due to the combined use with a gradiometric receive coil, the requirements for the components in terms of voltage and current specifications can be lowered which allows for partly building the filter on a PCB with well-matched SMD capacitors and trace lengths. The achieved attenuation for the differential-mode excitation field feedthrough is 77 dB while providing a common-mode rejection of more than 49 dB throughout the receive bandwidth.

AB - Differential signaling can provide a higher fidelity of the receive signals in MPI, which is especially important for mobile scanner setups not being operated in a shielding room. A passive, highly symmetrical filter is presented as a part of the fully differential receive chain of the scanner setup. Due to the combined use with a gradiometric receive coil, the requirements for the components in terms of voltage and current specifications can be lowered which allows for partly building the filter on a PCB with well-matched SMD capacitors and trace lengths. The achieved attenuation for the differential-mode excitation field feedthrough is 77 dB while providing a common-mode rejection of more than 49 dB throughout the receive bandwidth.

UR - https://www.scopus.com/pages/publications/85090279799

U2 - 10.18416/IJMPI.2020.2009031

DO - 10.18416/IJMPI.2020.2009031

M3 - Journal articles

AN - SCOPUS:85090279799

SN - 2365-9033

VL - 6

SP - 1

EP - 3

JO - International Journal on Magnetic Particle Imaging

JF - International Journal on Magnetic Particle Imaging

IS - 2

M1 - 2009031

ER -

Highly symmetric filter for a fully differential receive chain

Abstract

Funding

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this