Design criteria for cost-effective broad-band absorber-lined chambers for EMS measurements

The problem considered concerns simulating the electromagnetic environment for electromagnetic susceptibility measurements over a wide frequency range. Means of bridging the existing gap between low- and high-frequency techniques are suggested by extending the use of anechoic-type chambers downward in frequency. Results of measurements over a wide frequency range are presented to demonstrate the behavior of such absorber-lined chambers (ALC's). Basic criteria and guidelines for the design of ALC's are proposed.