Abstract

EMC testing involves measuring the electromagnetic emissions of devices and typically follows a standardized procedure. This testing is critical for ensuring the emissions from new devices do not disrupt the function of other devices nearby. An EMC test takes place in an anechoic chamber. During a test cycle, an antenna directed towards the Device Under Test (DUT) receives any emissions from it as the antenna slowly raises in elevation from 1 m to 4 m, stops, and then returns to its initial height. An antenna designed to receive emissions at frequencies above 1 GHz is more directional and thus must have its boresight—the axis of maximum reception gain—more accurately pointed at the DUT. This project was to create a mechanism (Boresight Device) that ensures an antenna used for EMC testing can automatically boresight during its test. The boresight algorithm relies on user-supplied inputs representing the DUT height and horizontal distance from the DUT, as well as a method of determining the height of the antenna at any given moment. The Device is designed to be compatible with existing products and models.

Building a safer, more connected, world.