Title :
An analytical model for studying the electromagnetic radiation of power-bus structures
Author :
Fischer, Thomas ; Leone, Marco ; Albach, Manfred
Author_Institution :
Siemens Audiologische Tech., Erlangen, Germany
Abstract :
The electromagnetic radiation of multilayer boards due to power-bus noise is investigated for an idealized rectangular structure. The derivation of the far field is based on the field equivalence principle, using a lossy cavity model for the required boundary electric field distribution. The maximum electric field is studied within the frequency range 30 MHz-1 GHz. A parameter study shows that the distance between the planes is one of the most effective means for lowering radiated emissions.
Keywords :
cavity resonators; electromagnetic interference; printed circuits; 30 to 1000 MHz; analytical model; electric field distribution; electromagnetic radiation; far field; field equivalence principle; lossy cavity model; multilayer boards; power-bus noise; power-bus structures; radiated emissions; rectangular structure; Analytical models; Boundary conditions; Electromagnetic interference; Electromagnetic radiation; Frequency; Integrated circuit noise; Noise figure; Nonhomogeneous media; Printed circuits; Switching circuits;
Conference_Titel :
Electromagnetic Compatibility, 2003 IEEE International Symposium on
Print_ISBN :
0-7803-7835-0
DOI :
10.1109/ISEMC.2003.1236596
