1m法电磁泄漏测量用电波暗室性能要求及测量方法

REQUIREMENT OF EMC ANECHOIC CHAMBER CHARACTERISTICS AND MEASUREMENT METHOD FOR ELECTROMAGNETIC LEAKAGE WITH 1 m METHOD

本文介绍了用１ｍ法进行电磁泄漏测量时，对电波暗室性能的要求及测量方法。分析和试验表明当频率在１０ＭＨｚ以下时，可以不进行场地校验，当频率在１０ＭＨｚ～３０ＭＨｚ时需要与开阔场进行对比校验。

The paper presents the requirement of EMC anechoic chamber characteristics and measurement method which are used in electromagnetic leakage measurement with 1 m method. Analysis and experiments show that the site calibration is unnecessary for frequency below 10 MHz, that the 3 m normalized site attenuation calibration is needed for frequency between 30 MHz and 1000 MHz, and that the contrast measurements between open site and anechoic chamber are required for frequency from 10 MHz to 30 MHz.