In this issue you will find two practical papers and two letters that should be of interest to the EMC community. The first paper is entitled, “SE Measurement Comparison of a Conductive Plastic Modem Enclosure Employing GTEM cell or Mode-tuned Reverberation Chamber Methodology” by Y. J. Wang, W. J. Koh, C. K. Lee and Y.K. Tai of Singapore. In it, methods to evaluate conductive plastic shields similar to those described in the Summer 2001 Newsletter article by Sabrina Sarto et. al. are compared. It appears that interest in this type of enclosure is increasing. The second paper is entitled, “How to Div Grad Kink and Curl Electrons Into Generating Unwanted Radiated Emissions” by Franz Gisin and Zorica Pantic-Tanner. This paper was submitted in response to rave reviews from Franz’s presentation of the material at the Seattle EMC Chapter meeting. I think that you will find the authors’ discussion of the origin of radiation quite “illuminating.” We hope to see more on this topic from the authors. Please contact the authors or me if you have some specific questions on this topic that have not yet been addressed. Finally, there are letters from Clayton Paul and Lex Van Duersen in response to my request for comments on Colin and Bronwyn Brench’s article in last summer’s issue on EMI Measurements and Modeling. I said then that I hoped this paper would be the beginning of a long conversation between those who primarily make measurements and those who primarily do numerical modeling. Lex and Clayton have responded with some very insightful comments. Enjoy these letters and feel free to add your two cents to the discussion.

Submission of material to the Practical Papers section of the Newsletter is encouraged. While all material will be reviewed prior to acceptance, the criteria are different from those of Transactions papers. Specifically, while it is not necessary that the paper be original or archival, it is necessary that the paper be correct, useful and of interest to readers of the Newsletter.

Comments from readers concerning these papers are welcome, either as a letter (or e-mail) to the Associate Editor or directly to the authors.

SE Measurement Comparison of a Conductive Plastic Modem Enclosure Employing GTEM cell or Mode-tuned Reverberation Chamber Methodology

How to Div Grad Kink and Curl Electrons Into Generating Unwanted Radiated Emissions

Comments on EMI Measurements and Modeling