Completely Integrated 1.5 Ghz Direct Conversion Transceiver

Abstract

For the first time, a fully functional single-chip Direct Conversion Transceiver for future mobile communications is presented. This single-chip transceiver contains all RF functions except the antenna. It has been realised in a silicon bipolar 0,s pm / 25 GHz technology and is operating up to 1.5 GHz. This enables for the first time a two-chip communicator handheld (RF transceiver chip + baseband processor chip).