Mitigation of Unwanted Forward Narrow-band Radiation from PCBs with a Metamaterial Unit Cell

Andrea Ruaro; Jesper Thaysen; Kaj Bjarne Jakobsen

Mitigation of Unwanted Forward Narrow-band Radiation from PCBs with a Metamaterial Unit Cell

Andrea Ruaro, Jesper Thaysen, Kaj Bjarne Jakobsen

GN ReSound A/S

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Abstract

Mitigation of EMI from a PCB is obtained through the use of a metamaterial unit cell. The focus is on the reduction of narrow-band radiation in the forward hemisphere when the resonant element is etched on a layer located between the source of radiation and the ground plane. As opposed to previous
publications in the literature, the aim of this work is the application of a filter to scattered radiation, generalizing the former characterizations based solely upon transmission lines’ insertion loss. The radiating area accounts for traces and components placed on the top layer of a PCB and is simulated via a patch
antenna. The study exhibits how the radiation pattern and the electric field on the patch antenna change within and outside the resonance bandwidth of the parasitic element. An EMC assessment provides experimental verification of the operating principle.

Original language	English
Title of host publication	Proceedings of European Microwave Conference 2013
Number of pages	4
Publisher	EuMA
Publication date	2013
Pages	939-942
ISBN (Print)	978-2-87487-031-6
Publication status	Published - 2013
Event	European Microwave Conference 2013 - Nuremberg, Germany Duration: 6 Oct 2013 → 11 Oct 2013 Conference number: 43

Conference

Conference	European Microwave Conference 2013
Number	43
Country/Territory	Germany
City	Nuremberg
Period	06/10/2013 → 11/10/2013

Keywords

Metamaterial filters
Planar filters
Electromagnetic interference (EMI)
Electromagnetic compatibility (EMC)
Printed circuit boards (PCB)

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title = "Mitigation of Unwanted Forward Narrow-band Radiation from PCBs with a Metamaterial Unit Cell",

abstract = "Mitigation of EMI from a PCB is obtained through the use of a metamaterial unit cell. The focus is on the reduction of narrow-band radiation in the forward hemisphere when the resonant element is etched on a layer located between the source of radiation and the ground plane. As opposed to previouspublications in the literature, the aim of this work is the application of a filter to scattered radiation, generalizing the former characterizations based solely upon transmission lines{\textquoteright} insertion loss. The radiating area accounts for traces and components placed on the top layer of a PCB and is simulated via a patchantenna. The study exhibits how the radiation pattern and the electric field on the patch antenna change within and outside the resonance bandwidth of the parasitic element. An EMC assessment provides experimental verification of the operating principle.",

keywords = "Metamaterial filters, Planar filters, Electromagnetic interference (EMI), Electromagnetic compatibility (EMC), Printed circuit boards (PCB)",

author = "Andrea Ruaro and Jesper Thaysen and Jakobsen, {Kaj Bjarne}",

year = "2013",

language = "English",

isbn = "978-2-87487-031-6",

pages = "939--942",

booktitle = "Proceedings of European Microwave Conference 2013",

publisher = "EuMA",

note = "European Microwave Conference 2013, 2013 EuMC ; Conference date: 06-10-2013 Through 11-10-2013",

}

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T1 - Mitigation of Unwanted Forward Narrow-band Radiation from PCBs with a Metamaterial Unit Cell

AU - Ruaro, Andrea

AU - Thaysen, Jesper

AU - Jakobsen, Kaj Bjarne

N1 - Conference code: 43

PY - 2013

Y1 - 2013

N2 - Mitigation of EMI from a PCB is obtained through the use of a metamaterial unit cell. The focus is on the reduction of narrow-band radiation in the forward hemisphere when the resonant element is etched on a layer located between the source of radiation and the ground plane. As opposed to previouspublications in the literature, the aim of this work is the application of a filter to scattered radiation, generalizing the former characterizations based solely upon transmission lines’ insertion loss. The radiating area accounts for traces and components placed on the top layer of a PCB and is simulated via a patchantenna. The study exhibits how the radiation pattern and the electric field on the patch antenna change within and outside the resonance bandwidth of the parasitic element. An EMC assessment provides experimental verification of the operating principle.

AB - Mitigation of EMI from a PCB is obtained through the use of a metamaterial unit cell. The focus is on the reduction of narrow-band radiation in the forward hemisphere when the resonant element is etched on a layer located between the source of radiation and the ground plane. As opposed to previouspublications in the literature, the aim of this work is the application of a filter to scattered radiation, generalizing the former characterizations based solely upon transmission lines’ insertion loss. The radiating area accounts for traces and components placed on the top layer of a PCB and is simulated via a patchantenna. The study exhibits how the radiation pattern and the electric field on the patch antenna change within and outside the resonance bandwidth of the parasitic element. An EMC assessment provides experimental verification of the operating principle.

KW - Metamaterial filters

KW - Planar filters

KW - Electromagnetic interference (EMI)

KW - Electromagnetic compatibility (EMC)

KW - Printed circuit boards (PCB)

M3 - Article in proceedings

SN - 978-2-87487-031-6

SP - 939

EP - 942

BT - Proceedings of European Microwave Conference 2013

PB - EuMA

T2 - European Microwave Conference 2013

Y2 - 6 October 2013 through 11 October 2013

ER -

Mitigation of Unwanted Forward Narrow-band Radiation from PCBs with a Metamaterial Unit Cell

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