EMCABS

EMC luminaries are shown at the 2007 Fourth International Symposium on Electromagnetic Compatibility in Qingdao, China, including (from left) Ryuji Koga, Gao Yougang, Yoshio Kami, and Newsletter Associate Editor, Osamu Fujiwara.

Following are abstracts of papers from previous EMC symposia, related conferences, meetings and publications.
EMCABS COMMITTEE
Bob Hunter, Consultant
r.d.hunter@ieee.org
Sha Fei, EMC Research Section, Northern Jiatong
University, Beijing, China
emclab@center.njtu.edu.cn
Ferdy Mayer, 7, rue Paul Barruel, F-75015 Paris, France
ferdymayer@free.fr
Maria Sabrina Sarto, Department of Electrical Engineering, University of Rome, Italy
sarto@elettrica.ing.uniroma1.it

“How Can I Get a Copy of an Abstracted Article?”
Engineering college/university libraries, public libraries, company or corporate libraries, National Technical Information Services (NTIS), or the Defense Technical Information Center (DTIC) are all possible sources for copies of abstracted articles or papers. If the library you visit does not own the source document, the librarian can probably request the material or a copy from another library through interlibrary loan, or for a small fee, you can order it from NTIS or DTIC. Recently it became clear that EMCABs were more timely than publications which were being listed in data files. Therefore, additional information will be included, when available, to assist in obtaining desired articles or papers. Examples are: IEEE, SAE, ISBN, and Library of Congress identification numbers.
As the EMC Society becomes more international, we will be adding additional worldwide abstractors who will be reviewing articles and papers in many languages. We will continue to set up these informal cooperation networks to assist members in getting the information or contacting the author(s). We are particularly interested in symposium proceedings which have not been available for review in the past. Thank you for any assistance you can give to expand the EMCS knowledge base. EMC

EMCABS: 01-02-2008
INFLUENCE OF PARAMETERS OF THE TRANSIENT GROUNDING MODEL ON NUMERICAL ANALYSIS AND EXPERIMENTAL VERIFICATION
+ He Hongbing, ++ Zhou Bihua and + Chen Jiaqing
+ Institute of Meteorology, PLA Univ. of Sci. & Tech., Nanjing 210007, China
++ EMP Laboratory of Nanjing Engineering Institute, Nanjing 210007, China
hehongbing1969@163.net, s-zbh@163.net
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp.27-30.
Abstract: This paper discussed the influence of the parameters of the transient grounding model on numerical analysis using the FDTD method; some useful results are given and verified by the experiment.
Index terms: Grounding, transient grounding resistance (TGR), grounding experiment.

EMCABS: 02-02-2008
TIME DOMAIN MEASUREMENT OF VOLTAGE RISE TIME AND CURRENT RISE TIME DUE TO LOW VOLTAGE ESD USING 12 GHz EXPERIMENTAL SYSTEM
+ K. Kawamata, +++ Y.Taka, ++ S. Minegishi, ++ A. Haga and +++ O. Fujiwara
+ Department of Electronic Intelligence and Systems, Hachinohe Institute of Technology 88-1 Ohbiraki Myo, Hachinohe, Aomori, 031-8501, Japan
++ Department of Electrical and Communication Engneering, Tohoku Gakuin University 1-13-1 Chuo, Tagajo, Miyagi, 985-8537, Japan
+++ Nagoya Institute of Technology Gokiso-cho Showa-ku, Nagoya, Aichi, 466-8555, Japan
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 55-58.
Abstract: Voltage rise time and current rise time due to small gap discharge as the low voltage ESD were investigated in time domain. The measurement system was improved on the bandwidth from 6 GHz to 12 GHz using the coaxial electrode system. Also, the sensing system was changed from the coupled transmission lines to an E-field sensor and a H-field sensor. The insertion loss of the experimental system was within about -3 dB in frequency range below 12 GHz. As a consequence of the experiment using the system, voltage and current rise time of transition duration were shown to be 32 ps or less. The rise times were changed in configuration of electrodes, source polarity and discharging voltage. In addition, the breakdown field was examined to corroborate the very fast transition durations of about 32 ps. The breakdown field was very high of about 8x107 V/m in low voltage discharging below 330 V.
Index terms: Low-voltage ESD, time-domain measurement, E/H field sensor, rise time.

EMCABS: 03-02-2008
TRANSMISSION CHARACTERISTIC ANALYSIS FOR UWB BODY AREA COMMUNICATIONS
Takeyoshi Tayamachi, Qiong Wang and Jianqing Wang
Graduate School of Engineering, Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
wang@nitech.ac.jp
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 75-78.
Abstract: With the rapid progress of electronic and information technology, an expectation for the realization of body area network (BAN) by means of ultra wide band (UWB) techniques has risen. The objective of this study is to analyze the transmission characteristics by using a high-precision human body model in order to eliminate the influence of antenna structures on channel modeling. A frequency-dependent finite difference time domain ((FD)2TD) method and a Matlab-based curve-fitting tool are employed for the modeling of channel characteristics. Based on the numerical results, the path loss and power delay profile are derived statistically.
Index terms: Ultra wide band (UWB), transmission channel, frequency-dependent finite difference time domain ((FD)2TD) method, path loss, power delay profile.

EMCABS: 04-02-2008
HARMONIC ANALYSIS OF HVDC TRANSFORMER USING HARMONIC BALANCE - FINITE ELEMENT METHOD (HB-FEM)
+ Junwei Lu and ++ Xiang Chui
+ Griffith School of Engineering, Griffith University, Australia
++ School of Electrical Engineering, North China Electric Power University, China
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 92-95.
Abstract: Harmonic balance analysis is a powerful numerical method for solving nonlinear electromagnetic (EM) problems. It can also be used to solve the nonlinear quasi-static electromagnetic field for DC biased transformer problems used in HVDC transmission systems and power electronics. This paper introduces a relatively new numerical method, namely, the harmonic balance - finite element method (HB-FEM) and its application to time-periodic steady-state nonlinear EM field problems. The validation of a DC biased problem in nonlinear magnetic field and harmonic analysis are also presented in this paper.
Index terms: Harmonic balance, HVDC transmission system, HB-FEM, transformer, nonlinear magnetic field.

EMCABS: 05-02-2008
CROSSTALK ANALYSIS OF HIGH SPEED DIGITAL MICROSTRIP TRACES OVER A SLOTTED GROUND PLANE USING THE NON-UNIFORM FDTD METHOD
Yang Guang and Lu Yinghua
Beijing University of Posts and Telecommunications, Beijing 100876 China
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 118-121.
Abstract: The non-uniform finite-difference time domain (FDTD) method is presented to analyze the crosstalk of high-speed digital microstrip traces over a slotted ground plane in this paper. The crosstalk influence factors including rise time of the high-speed digital signal, slot width and trace-to-trace distance are analyzed. Further, the effect of reducing crosstalk between 3W Rule and guard trace grounded at two ends or at multipoint along it is compared. The conclusions of this paper could be applied to high-speed digital printed circuit board (PCB) design.
Index terms: Crosstalk, non-uniform FDTD, microstrip, slot.

EMCABS: 06-02-2008
LCL CHARACTERISTICS OF PARALLEL TRANSMISSION LINE WITH LOAD CIRCUIT
+ Yasunori Oguri, ++ Kimitoshi Murano, + Fengchao Xiao and + Yoshio Kami
+ Department of Information and Communication Engineering, University of Electro-Communications, Chofugaoka 1–5–1, Chofu–shi, Tokyo, 182–8585, Japan
++ Department of Information, Communication and Electronics, School of Information Science and Technology, TOKAI University, Kitakaname 1117, Hiratsuka-shi, Kanagawa, 259–1292, Japan
oguri@ice.uec.ac.jp
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 126-129.
Abstract: In Japan, a power-line communication (PLC or PLT) system was approved only as an in-house system. One of the concerns is leakage of electromagnetic fields from power lines, which are mainly caused by common-mode currents. The common-mode current should be estimated under a condition of LCL (Longitudinal Conversion Loss) of 16 dB in the Japanese rule. In this paper, the characteristics of LCL are discussed at an input terminal of two-parallel lines, which is modeled after a simple in-house power line, with unbalanced load circuit on a viewpoint of transmission-line theory. By applying an equivalent expression concerning common and differential modes at outlet terminals, the analysis is developed.
Index terms: Power line communication, main outlet, longitudinal conversion loss, common mode, differential mode.

EMCABS: 07-02-2008
PREDICTION OF COMMON-MODE RADIATION FROM PRINTED CIRCUIT BOARDS WITH INTERCONNECTIONS
+ Yoshitaka Toyota, + Akifumi Sadatoshi, ++ Tetsushi Watanabe, + Kengo Iokibe, + Ryuji Koga, and +++ Osami Wada
+ Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530 Japan
++ Industrial Technology Center of Okayama Prefecture, Okayama 701-1296 Japan
+++ Graduate School of Engineering, Kyoto University, Kyoto 615-8510 Japan
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 142-145.
Abstract: In order to estimate the amount of common-mode radiation from a printed circuit board with low calculation cost, a common-mode antenna model has been developed. This paper demonstrates the application of the model to a board interconnection via a connector that is known to be a possible source of common-mode radiation. The radiated emissions estimated by the model agreed with the measurements for practical use.
Index terms: Printed circuit board, interconnections, common-mode radiation, common-mode antenna model.

EMCABS: 08-02-2008
IMPLEMENTING APD MEASUREMENT IN MONOLITHIC CIRCUITS
Chen Song, Sha Fei, and Yang Fei
EMC Section, Beijing Jiaotong University, Beijing, China
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 162-165.
Abstract: As a new measuring method for the frequency range of 1 GHz to 18 GHz, the Amplitude Distribution Probability (APD) method has been formally written into CISPR 16-1-1 Ed.2: Specification for radio disturbance and immunity measuring apparatus and methods in 2005. For the traditional EMI receivers that are employed widely in most EMC test labs, additional measuring apparatus were necessary to implement the APD measurement. Herein, we introduced an APD measuring apparatus developed by the EMC Research Section, Beijing Jiaotong University, PRC. This apparatus was designed based upon fast analog-digital conversion and VLSI technology. The entire digital logic function was built in a single field programmable gate arrays (FPGA) device, meeting the specification requirements of CICPR16-1-1.
Index terms: EMI measuring apparatus, APD, A/D conversion, FPGA.

EMCABS: 09-02-2008
MEASUREMENT OF PULSED ELECTRIC FIELD SHIELDING EFFECTIVENESS OF REINFORCED GRIDS CUBIC CAGES
Chang Yun-fen, Gao Cheng, Xu Yuan-zhe and Zhou Bi-hua
Nanjing Engineering Institute, NO.1 Haifuxiang, Nanjing Jiangsu 210007, China
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 166-169.
Abstract: The paper presents a measurement of pulsed electric field by a portable measurement system for the shielding effectiveness of pulsed electric field. In order to research the influence of bonding method of cross points of reinforced grids and the size of reinforced grids, three bonding methods and two types of reinforced grids’ size are evaluated in this measurement. The results of the experiment are then obtained. In addition, some valuable conclusions are reached, which can be applied to engineering.
Index terms: SE (shielding effectiveness), EMP, reinforcement mesh, welding, bonding.

EMCABS: 10-02-2008
MEASUREMENT OF THE ELECTROMAGNETIC PROPERTIES OF MATERIALS BASED ON A REFINED TRANSMISSION-REFLECTION ALGORITHM
+ Jiang Shan and ++ Xu Ke
+ Communication Department, State Intellectual Property Office 100088 China
++ School of Economics and Management, BeiHang University 100083 China
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 178-181.
Abstract: A refined algorithm is presented based upon the traditional NRW Transmission-Reflection Method (T/R Method). According to the magnetic property of the material under test, the algorithm can get different solutions, then obtain the complex permittivity and complex permeability of magnetic material simultaneously or the complex permittivity of nonmagnetic material. It solves the half-wavelength divergence problem and the multi-roots problem, which exists in the traditional NRW algorithm and overcomes the machining and assembling problem of thin samples that is required in the traditional algorithm. Tests of air and PTFE are carried out to verify the reliability of this test system and the results are consistent with true values.
Index terms: Complex permittivity, complex permeability, T/R Method, VNA.

EMCABS: 11-02-2008
EFFECT OF THE LOAD PROPERTY ON THE ESD CURRENT
+, ++ Liu Suling, ++ Shi Dan and ++ Gao Yougang
+ Physics Department of Hebei University, Baoding, 071002, China
++ Beijing University of Posts and Telecommunications, Beijing, China
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 240-243.
Abstract: The effect of the load property on the electrostatic discharge (ESD) current is great. In this paper, the factors affecting the ESD current are analyzed by transmission line theory when the load is linearity. The result indicates that the geometry of the load influences the rise time and the peak value of the ESD current. All the presented results are valuable in researching the electromagnetic interference of the ESD on the EUT.
Index terms: ESD current, transmission line theory, load property, induced voltage.

EMCABS: 12-02-2008
SHIELDING EFFECTIVENESS OF AN ENCLOSURE WITH A DIELECTRIC-BACKED APERTURE USING SLOTLINE METHOD
Su-han Kim, Dong-chul Park, and Jae-hyun Lee
Chungnam National University 220, Gung-dong, Yuseong-Gu, Daejeon 305-764, Korea
suhankim@cnu.ac.kr, dcpark@cnu.ac.kr, jaehyun@cuvic.cnu.ac.kr
Proceedings of 2007 4th International Symposium on Electromagnetic Compatibility, Qingdao, China, October 23 - 25, 2007, pp. 432-435.
Abstract: A new analytical formulation is presented for the shielding effectiveness of an enclosure with a dielectric-backed aperture. The shielding effectiveness may be calculated as a function of frequency, dielectric constant, and position within the enclosure. And, a formulation has been developed for the shielding effectiveness of the structure where the one side of dielectric is partially backed by conductor.
Index terms: Shielding effectiveness, dielectric-backed aperture.
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