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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".

Copyrights notice

The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice

연결된 피드 케이블로 구동되는 인쇄 회로 기판(PCB)은 전자 장치의 전자기 간섭(EMI)의 주요 원인 중 하나로 간주됩니다. 본 논문에서는 최대 기가헤르츠 주파수에서 연결된 피드 케이블로 구동되는 PCB의 전자기(EM) 복사를 예측하는 방법을 제안하고 시연합니다. 예측 모델은 안테나 임피던스를 고려한 전송선 이론과 전류 및 전압 구동 CM 생성 메커니즘을 기반으로 합니다. 차동 모드(DM) 및 공통 모드(CM) 전류와 원거리 전기장의 주파수 응답을 실험적으로 그리고 유한 차분 시간 영역(FDTD) 모델링을 통해 조사했습니다. 첫째, 소스-경로-안테나 모델을 사용하여 PCB의 총 EM 복사에서 주요 구성 요소를 식별했습니다. CM이 더 낮은 주파수에서는 전체 방사를 지배할 수 있지만 3GHz 이상에서는 DM이 지배적인 구성 요소입니다. 둘째, 더 낮은 주파수에서 CM 성분을 예측하는 방법을 제안한다. 그리고 FDTD 계산 결과와 측정 결과를 비교하여 그 타당성을 논의하였다. 특히, CM 전류와 종단 저항 사이의 관계는 예측의 중요한 결과로 초점이 맞춰졌습니다. 측정된 결과와 예측된 결과가 잘 일치하면 예측된 결과의 타당성을 보여줍니다. 제안된 모델은 충분한 정확도로 CM 전류를 예측할 수 있으며 CM 생성의 주요 결합 메커니즘도 식별할 수 있습니다. 그런 다음 제안된 방법을 사용하여 원거리 전기장을 예측하고 연결된 피드 케이블에 의해 구동되는 PCB에서 발생하는 원하지 않는 EM 복사의 주파수 응답 개요를 공학적 정확도(6dB 이내)로 예측할 수 있음을 입증했습니다. 18GHz. 마지막으로 등가회로 모델을 EMC 설계에 적용한 예로서 접지면 폭의 영향을 예측하고 논의하였다. 등가 회로 모델은 다양한 기하학적 매개변수에 대해 충분한 유연성을 제공하고 통찰력과 설계 지침을 제공하는 능력을 향상시킵니다.

- 발행
- IEICE TRANSACTIONS on Communications Vol.E92-B No.6 pp.1920-1928

- 발행일
- 2009/06/01

- 공개일

- 온라인 ISSN
- 1745-1345

- DOI
- 10.1587/transcom.E92.B.1920

- 원고의 종류
- Special Section PAPER (Special Section on 3rd Pan-Pacific EMC Joint Meeting -- PPEMC'08--)

- 범주

The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.

부

Yoshiki KAYANO, Hiroshi INOUE, "Prediction of EM Radiation from a PCB Driven by a Connected Feed Cable" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 6, pp. 1920-1928, June 2009, doi: 10.1587/transcom.E92.B.1920.

Abstract: Printed circuit boards (PCBs) driven by a connected feed cable are considered to be one of the main sources of the electromagnetic interference (EMI) from electronic devices. In this paper, a method for predicting the electromagnetic (EM) radiation from a PCB driven by a connected feed cable at up to gigahertz frequencies is proposed and demonstrated. The predictive model is based on the transmission line theory and current- and voltage-driven CM generation mechanisms with consideration of antenna impedance. Frequency responses of differential-mode (DM) and common-mode (CM) currents and far-electric field were investigated experimentally and with finite-difference time-domain (FDTD) modeling. First, the dominant component in total EM radiation from the PCB was identified by using the Source-Path-Antenna model. Although CM can dominate the total radiation at lower frequencies, DM is the dominant component above 3 GHz. Second, the method for predicting CM component at lower frequencies is proposed. And its validity was discussed by comparing FDTD calculated and measured results. Specifically, the relationship between the CM current and the terminating resistor was focused as important consequence for the prediction. Good agreement between the measured and predicted results shows the validity of the predicted results. The proposed model can predict CM current with sufficient accuracy, and also identify the primary coupling-mechanism of CM generation. Then far-electric field was predicted by using the proposed method, and it was demonstrated that outline of the frequency response of the undesired EM radiation from the PCB driven by the connected feed cable can be predicted with engineering accuracy (within 6 dB) up to 18 GHz. Finally, as example of application of equivalent circuit model to EMC design, effect of the width of the ground plane was predicted and discussed. The equivalent circuit model provides enough flexibility for different geometrical parameters and increases our ability to provide insights and design guidelines.

URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1920/_p

부

@ARTICLE{e92-b_6_1920,

author={Yoshiki KAYANO, Hiroshi INOUE, },

journal={IEICE TRANSACTIONS on Communications},

title={Prediction of EM Radiation from a PCB Driven by a Connected Feed Cable},

year={2009},

volume={E92-B},

number={6},

pages={1920-1928},

abstract={Printed circuit boards (PCBs) driven by a connected feed cable are considered to be one of the main sources of the electromagnetic interference (EMI) from electronic devices. In this paper, a method for predicting the electromagnetic (EM) radiation from a PCB driven by a connected feed cable at up to gigahertz frequencies is proposed and demonstrated. The predictive model is based on the transmission line theory and current- and voltage-driven CM generation mechanisms with consideration of antenna impedance. Frequency responses of differential-mode (DM) and common-mode (CM) currents and far-electric field were investigated experimentally and with finite-difference time-domain (FDTD) modeling. First, the dominant component in total EM radiation from the PCB was identified by using the Source-Path-Antenna model. Although CM can dominate the total radiation at lower frequencies, DM is the dominant component above 3 GHz. Second, the method for predicting CM component at lower frequencies is proposed. And its validity was discussed by comparing FDTD calculated and measured results. Specifically, the relationship between the CM current and the terminating resistor was focused as important consequence for the prediction. Good agreement between the measured and predicted results shows the validity of the predicted results. The proposed model can predict CM current with sufficient accuracy, and also identify the primary coupling-mechanism of CM generation. Then far-electric field was predicted by using the proposed method, and it was demonstrated that outline of the frequency response of the undesired EM radiation from the PCB driven by the connected feed cable can be predicted with engineering accuracy (within 6 dB) up to 18 GHz. Finally, as example of application of equivalent circuit model to EMC design, effect of the width of the ground plane was predicted and discussed. The equivalent circuit model provides enough flexibility for different geometrical parameters and increases our ability to provide insights and design guidelines.},

keywords={},

doi={10.1587/transcom.E92.B.1920},

ISSN={1745-1345},

month={June},}

부

TY - JOUR

TI - Prediction of EM Radiation from a PCB Driven by a Connected Feed Cable

T2 - IEICE TRANSACTIONS on Communications

SP - 1920

EP - 1928

AU - Yoshiki KAYANO

AU - Hiroshi INOUE

PY - 2009

DO - 10.1587/transcom.E92.B.1920

JO - IEICE TRANSACTIONS on Communications

SN - 1745-1345

VL - E92-B

IS - 6

JA - IEICE TRANSACTIONS on Communications

Y1 - June 2009

AB - Printed circuit boards (PCBs) driven by a connected feed cable are considered to be one of the main sources of the electromagnetic interference (EMI) from electronic devices. In this paper, a method for predicting the electromagnetic (EM) radiation from a PCB driven by a connected feed cable at up to gigahertz frequencies is proposed and demonstrated. The predictive model is based on the transmission line theory and current- and voltage-driven CM generation mechanisms with consideration of antenna impedance. Frequency responses of differential-mode (DM) and common-mode (CM) currents and far-electric field were investigated experimentally and with finite-difference time-domain (FDTD) modeling. First, the dominant component in total EM radiation from the PCB was identified by using the Source-Path-Antenna model. Although CM can dominate the total radiation at lower frequencies, DM is the dominant component above 3 GHz. Second, the method for predicting CM component at lower frequencies is proposed. And its validity was discussed by comparing FDTD calculated and measured results. Specifically, the relationship between the CM current and the terminating resistor was focused as important consequence for the prediction. Good agreement between the measured and predicted results shows the validity of the predicted results. The proposed model can predict CM current with sufficient accuracy, and also identify the primary coupling-mechanism of CM generation. Then far-electric field was predicted by using the proposed method, and it was demonstrated that outline of the frequency response of the undesired EM radiation from the PCB driven by the connected feed cable can be predicted with engineering accuracy (within 6 dB) up to 18 GHz. Finally, as example of application of equivalent circuit model to EMC design, effect of the width of the ground plane was predicted and discussed. The equivalent circuit model provides enough flexibility for different geometrical parameters and increases our ability to provide insights and design guidelines.

ER -