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This paper presents a mostly digital IR UWB transceiver operating in 0∼960 MHz frequency range for low power wearable and implantable biomedical devices. The UWB transmitter adopts a carrier-less pulse generator with BPSK modulation, and achieves energy efficiency of 100 pJ/pulse. Intermittent operation is adopted by the receiver to save power which consumes about 600 μW at 1 Mbps. The timing window...
An all-digital CMOS ultra-wideband (UWB) pulse generator with 3-5GHz frequency range is presented in this paper. The pulse generator is tunable in both amplitude and bandwidth to meet the FCC spectral mask requirement. The circuit is implemented in 0.13 μm CMOS process with a core area of 0.024 mm2 and achieving an energy efficiency of 2.5 pJ/pulse at 200M pulse/s.
In this paper, a novel fully integrated monocycle pulse based UWB transmitter is presented. Fabricated in a 0.18-mum CMOS process, a low-power all-digital UWB pulse generator and modulator is proposed. The modulated pulse is further shaped by a driver amplifier. The transmitted pulses are binary phase modulated and meet the FCC UWB low frequency band (3.1-4.5GHz) spectral mask specification
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