Improvements in alternative radiated emission test methods with surface wire

Abstract

Radiated emission measurements are normally performed in laboratories at Open Area Test Sites (OATS) or in anechoic chambers at 10m or 3m in accordance with the standard CISPR22 or other similar standards. However, it is not always possible to use laboratories because of some limitations. If the Equipment Under Test (EUT) has large dimensions or heavy, it is not possible to use laboratory facilities for tests. As a consequence, on-site radiated emission tests are required in industry. On the other hand, radiated emission tests have many challenges in industry such as background noise, uncontrolled reflections and narrow testing environment, for that reason use of some alternative methods are inevitable in industrial environments. In this research, we have experimentally investigated the surface wire method and its links to the standard laboratory methods in an attempt to bring the state of art researches one more step further.