Abstract
The purpose of integrated circuit (IC) electromagnetic radiation measurement is to measure the conducted or radiated emission level generated by the device under test (DUT). Many standards provide detailed requirements for testing, such as IEC 61967–2 and IEC 61967–8. Test equipment based on these standards usually reserves a square test window. The traditional test scheme is to design the electromagnetic compatibility (EMC) test board as a square that matches the test window. This undoubtedly limits the test angle to a selected four. Designing the EMC test board to be circular, and installing a square to circular metal partition on the test window can effectively solve this limitation, and test the radiation of the DUT at any angle. The test results show that the maximum radiation emission of some typical frequencies appears at other test angles.
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