Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Coupling to Devices in Electrically Large Cavities, or Why Classical EMC Evaluation Techniques are Becoming Obsolete

Published

Author(s)

John M. Ladbury, T. H. Lehman, Galen H. Koepke

Abstract

We show that the coupling between a sensor in an electrically large cavity and the outside world is a very complicated problem, with small changes inside the cavity resulting in signal changes of greater than 20 dB. However, this problem can be greatly simplified by separating the task into two components: a statistical "reverberation chamber" type component, and a deterministic component (trends as a function of aspect angle, frequency, or other parameter). We give methods for evaluating each of these effects, and show how they can be applied in a specific detailed example.
Conference Dates
August 19-23, 2002
Conference Location
Minneapolis, MN
Conference Title
2002 Intl. EMC Symp.

Keywords

reverberating, chamber, coupling, electrically large, reverberation, cavities

Citation

Ladbury, J. , Lehman, T. and Koepke, G. (2002), Coupling to Devices in Electrically Large Cavities, or Why Classical EMC Evaluation Techniques are Becoming Obsolete, 2002 Intl. EMC Symp., Minneapolis, MN (Accessed April 15, 2024)
Created August 18, 2002, Updated October 12, 2021