Scheduled lecture titles and abstract of Pan-pacific EMC joint meeting '05.

<People's Republic of China> "Some Research Works on Environmental Electromagnetic & EMC Technology in China" Prof. Gao Yougang (EMC Lab of Beijing Univ. of Posts & Telecom.), Prof. Su Donglin (R.F. EMC Lab of Bei Hang Univ.) Abstract: With the development and application of modern science and technology, we Chinese people now pay more and more attention on electromagnetic environment & EMC technology, and more and more people take part in this area to carry out some research works. This paper will introduce some of their works: EMC in power engineering, R.F. EMC, lightning mechanism & its protection, EMC prediction & Computational electromagnetic.

<Republic of Korea> "Crosstalk Reduction Estimation of Non-Parallel Microstrip Lines Using Additional Trace With Metal Filled Via Holes on PCBs" Prof. Dong Chul Park Department of Radio Science and Engineering, Chungnam National University, Daejeon, Korea Abstract : The circuit-concept approach of (2+1) finite-length transmission lines in arbitrary directions on PCBs has been expanded for the crosstalk calculation of (n+1) lines where n>2. In this paper, a useful application of this expansion is demonstrated. The effects of additional trace with the metal filled via holes on alleviating the crosstalk between non-parallel microstrip lines on PCBs are investigated using the equations derived for the case of (n+1) lines. Multiconductor transmission line sections and via hole sections are represented by ABCD parameters and cascaded according to the PCB structure configuration. The crosstalk reduction of via fences is estimated theoretically and compared with the measurement.

<Republic of Singapore> "Mordeling and Simulation for Electromagnetic Radiation and Susceptibility in Complex Electronic Systems," Dr. Li Er Ping (Chairman of IEEE EMC-S Singapore Chapter) Computational Electromagnetic and Electronics Division Institute of High Performance Computing, Singapore Abstract: The proliferation in high-speed micro-scale and nano-scale electronics as well as the wide application of wireless techniques has precipitated the increasing importance of both electromagnetic interference (EMI) and susceptibility (EMS). This can be observed nowadays in various electronic products even in conventional mechanical property dominated areas, such as the automotive and aero-space equipment. Hence, if the electromagnetic interference effects are not addressed during early design stages, it will cause malfunction of a fabricated system, or distort an analogue signal such that it fails to meet the required specifications. Since the high cost for extra iterations in the design cycle, efficient simulation techniques for the system EMC become imperative at the modern digital and RF mixed electronic regime.

<Japan> " EMC Modeling of Printed Circuit Boards and Semiconductor Devices" Prof. Osami Wada, Department of Electrical Engineering, Kyoto University Abstract: Controlling the electromagnetic emission from high-speed digital circuits is discussed. Macro-modeling techniques which the authors proposed were applied to some practical printed circuit board (PCB) structures. High-speed simulation of power-bus of a multi-layer PCB with cavity mode model and segmentation method is demonstrated. Common-mode excitation on a PCB is explained utilizing the "imbalance difference model", and reduction of common mode is evaluated effectively. An EMC macro-model of ICs/LSIs, called the LECCS model, has been developed, and is now under discussion to apply practical EMC design of devices and PCBs. Recent trend of standardization of device models is also outlined.

<Japan> "Latest Researches in Children's Dosimetry for Mobile Phones" Prof. Jianqing Wang and Prof. Osamu Fujiwara, Nagoya Institute of Technology Abstract: With the rapid spread of children's use of mobile phones, a public concern about possible biological effects is increasing, while the dosimetric results in children's heads are still inconsistent. In this talk, we introduce some latest research results on the dosimetry of children for mobile phones. The contents include a comparison for the specific absorption rate (SAR) characteristics in anatomical head models of adult and children, and an approach to the age effect of dielectric properties on the peak SAR. An international inter-comparison of SAR calculation, which was organized by the IEEE Standards Coordinating Committee 34, Sub-Committee 2, Working Group 2, is also introduced using the specific anthropomorphic phantom (SAM) and anatomically based head models of adult and children.