Cellular operators have longed for the ability to deploy versatile wireless infrastructure that can be field programmed to serve a range of cellular services. Ultimately the wireless infrastructure ...

Direct down conversion, and its companion, very low IF (VLIF) or near-zero IF, are approaches that have essentially changed the face of the receive chain in a mobile handset. For the designer, it is ...

Direct conversion receivers are popular among ham radio operators and others who build radios. Suppose you want to listen to a signal at 7.1 MHz. With a direct conversion receiver, you’d tune a local ...