EMC/EMI

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At EMV in Stuttgart, Rohde & Schwarz will demonstrate highlights such as the new R&S ELEKTRA EMC test software for automated certification and precompliance tests and R&S AdVISE for automated visual checks. Brand new are the test solutions for spurious emission measurements for 5G components.

Dow Performance Silicones, will deliver a presentation at the Mobile World Congress (MWC) Barcelona about conductive materials for advanced technologies in communications, transportation, and consumer devices.

In high-speed circuit designs, power integrity (PI) and electromagnetic interference (EMI) are connected together. When the edge of the cavity created by power (PWR) and ground (GND) planes in PCBs radiates, the peak frequencies in the emissions are the same as the peak frequencies in the cavity self-impedance.

Switch-mode power supplies (SMPS) are commonly used DC-to-DC converters in many electronic components. By their nature, they can generate a lot of radiated emissions. Unless care is taken, it is difficult to separate what is the actual voltage on the power rail and what is an artifact due to the way we probe the circuit. The project outlined here shows how to avoid EMI pick-up and cable reflection noise.

My aging vibration system started faulting. Shaking for 30 years takes a toll on a thing, after all. The system is pretty straightforward, just a big stack of audio amps and a controller. Much to my lab manager’s chagrin, I had been intentionally ignoring the warning signs.

TDK Corporation has expanded the MAF1005G series of noise suppression filters for audio lines with four new MAF1005GAD-D types, which, thanks to their low DC resistance, feature a high rated current of up to 1.25 A. 

The R&S IQW wideband I/Q data recorder can be used to record signal scenarios typically required in test cases at a bandwidth up to 512 MHz and high sampling rates. The solution records wideband RF signals and reproduces them to simulate real-world test environments, enabling realistic, repeatable device tests in the lab.