Abstract: In ATE, electronic equipment has characteristic of high frequency, bandwidth and radiation signal. This paper takes the RF and microwave signal transmission and control to connect the device under test via an attached device, to eliminate path switch links and reduce signal radiation, mutual interference and fading. Practice has proved that the device structure is tight, the usage is stable, and the service life is long. It is a better way to solve the electromagnetic compatibility among instruments.

Key words: automated test equipment (ATE), RF and microwave, electromagnetic compatibility, RF and microwave centralized control