A fully integrated CMOS UWB transmitter

In this paper, a fully integrated CMOS UWB transmitter is presented. The presented UWB transmitter consists of a low voltage differential signal (LVDS) receiver to be driven with high data rate input, a pulse generator to produce sub-nanosecond Gauss-like pulses at each rising edge of input data and a driver amplifier to shape the pulses and to drive 50-ohm antennas. Fabricated in an HJTC's 0.18mum mixed signal CMOS technology, the transmitter can generate 500ps width pulses at a repetition rate of over 500Mpps and consumes less than 4mW. The presented transmitter has a small core size of around 100 mum times 150 mum.