Development of effective test method of radiant high frequency electromagnetic field immunity (IEC 801-3)

For EMC (electromagnetic compatibility) of electronic equipment, it is necessary to not only reduce the electromagnetic waves radiated from the equipment but also raise the resistance against external electromagnetic waves. A test method for checking the level of this resistance against electromagnetic waves is currently under study as IEC Standard 801-3 but it has a big problem in the matter of test efficiency because of an enormous amount of test time required. Under such circumstances, we developed a simple and efficient test method which can be applied without sacrificing the reliability of the test and have the honour of reporting an outline of this method hereafter