Unintended electromagnetic emissions can cause interference to nearby communications receivers —radio, TV, GPS, WiFi, and more. Many years ago, EMI problems were called RFI, or radio frequency ...

Though often used as synonyms, Electromagnetic Compatibility (EMC) is really the controlling of radiated and conducted Electromagnetic Interference (EMI); and poor EMC is one of the main reasons for ...

After the critical circuits, we like to examine the printed-circuit board (PCB) stackup. Like the schematic, board stackup decisions are often made prior to routing and placement, so this is a good ...

Electromagnetic far field impedance is about 377Ω = 120π or 29,9792458 × 4 × πΩ for the vacuum velocity of light. Any electromagnetic wave far enough from its source (rule of thumb >wavelength/2 × π) ...

What is the Conducted EMI measurement? Using FFT-based measuring receivers for CISPR 32. Combining debugging and pre-compliance modes in test equipment. EMC compliance testing of a manufacturer’s ...