Title :
Easing radiated EMC problems with spread-spectrum modulation of computer clock signals
Author :
Stone, D.A. ; Chambers, B.
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
fDate :
11/23/1995 12:00:00 AM
Abstract :
The effect on radiated interference of the application of frequency-hopping spread-spectrum modulation techniques to the clock frequency of a microcomputer has been investigated. Preliminary results show that this technique is capable of at least an 8 dBμV/m reduction in radiated quasipeak interference levels in the near field when using standard EMC measurement test bandwidths
Keywords :
clocks; electromagnetic compatibility; frequency hop communication; spread spectrum communication; computer clock signals; frequency hopping; near field; radiated EMC problems; radiated quasipeak interference levels; spread-spectrum modulation; test bandwidths;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19951416
