A couple of years ago one of the Hackaday Prize finalists was a project to take highschoolers through building a direct conversion radio receiver for the 40 metre amateur band. It was originated by ...

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 ...

Graphene has attracted much interest as a future channel material in radio frequency electronics because of its superior electrical properties. Fabrication of a graphene integrated circuit without ...