You are invited by IEEE EMC Society Central New England Chapter on 6:30 PM, Tuesday, February 11 to presentation
The GTEM! What Is it, Where Has It Been, Where is it Going? John Osburn, EMC Test Systems, L. P., Austin, Texas The GHz Transverse Electromagnetic Cell, or GTEM!, is a relatively new type of test instrument for making electromagnetic field measurements. It is an asymmetric rectangular cross section transmission line, with a 50 Ohm characteristic impedance, as well as a 377 Ohm field impedance. It is fully reciprocal, thus can be used for both radiated field emissions and immunity to radiated field measurements. In many cases GTEM! is the preferred alternative to both Open Area Test Site and Semianechoic Chamber. The presentation will begin with a technical overview of the GTEM!, including its Electromagnetic structure, performance values and limitations, and continue with an overview of its current measurement capabilities. Measurement procedures for the conduct of both radiated emissions and immunity will be outlined. The status of GTEM! cells in international regulatory acceptance will be described, and the future of the GTEM!, in both a technical and regulatory sense will be projected. John Osburn is a NARTE Certified EMC Engineer, a member of the IEEE EMC Society Standards Committee and active in standards development effort with the Society of Automotive Engineers and the American National Standards Institute. He is a Chairman of IEEE 1997 International EMC Symposium on EMC in Austin, TX. The Electromagnetic Compatibility Chapter meeting will take place in the cafeteria of the Chomerics Facility, 77 Dragon Court, Woburn, Massachusetts on Tuesday February 11 at 6:30 p.m. Coffee, sodas and cookies will be on Chomerics. If you need more information, contact Mirko Matejic at (508) 549-3185 or email: mmate...@foxboro.com.
