A 2.5mW 2Mb/s fully integrated impulse-FM-UWB transceiver in 0.18µm CMOS

This paper presents a fully integrated self-quenched super-regenerative impulse-FM-UWB transceiver architecture for wireless body area networks. The design architecture consists of two different LC self-quenched oscillators tuned at 3.5GHz and 4.5GHz. In transmitting mode, both oscillators are turned on and off to generate impulse-FM-UWB data pattern. In receiving mode, these oscillators act as self-quenched super-regenerative filters to detect impulse-FM-UWB data pattern. The test structure of the transceiver has been implemented in 0.18μm CMOS technology. The self quenched filter consumes 1mW and 1.5mW from a 1.5V supply in transmit and receive modes, respectively. A UWB signal to in-band interferer ratio of -36 dB is achieved for a data rate of 2Mbit/s and a sensitivity of -95dBm.