Government agencies divide the radio frequency spectrum into frequency bands that are authorized for specific uses defined geographic regions (such as a city). In the United States, the responsibility ...

Activity at an RF checkpoint. These checkpoints are the first line of defense. MULTIPLE CITIES— The logistics of managing live broadcasts at sports events can be staggering. As radio adopts more ...

Single-cell lithium-ion batteries traditionallyhave powered RF (radio-frequency) linearpower amplifiers in cell phones. Althoughthe use of these linear power amplifiers canhelp to meet the ...

For decades, RF (Radio Frequency) has been the cornerstone of Electronic Article Surveillance (EAS) systems in retail. But what is RF? It is a technology that uses radio waves to detect security tags ...

Aerospace and defense engineers focus on component- and system-level EMI/RFI protection to help ensure platform effectiveness and mission success. Electromagnetic interference (EMI) — noise or ...

In 1967, Amana Corporation introduced the first tabletop-sized microwave oven for consumer use. Since then, the microwave has become an indispensable small appliance in virtually every home in the ...