High speed linear array circuit with AlGaAs/GaAs heterojunction bipolar transistors (HBTs)

摘要

Direct comparison of the performance of a digital divide-by-two implemented in a linear array configuration with an optimised layout version has been made, using AlGaAs/GaAs HBTs in 3.5 mu m emitter width technology with a cutoff frequency of 40 GHz. the customised version operated up to 7.5 GHz input frequency. The linear array circuit operated up to 7.05 GHz.