Title :
A 14pJ/pulse-TX, 0.18nJ/b-RX, 100Mbps, channelized, IR-UWB transceiver for centimeter-to-meter range biotelemetry
Author :
Ebrazeh, A. ; Mohseni, Pedram
Author_Institution :
Electr. Eng. & Comput. Sci. Dept., Case Western Reserve Univ., Cleveland, OH, USA
Abstract :
This paper presents an energy-efficient, customizable, high-data-rate, impulse radio ultra wideband (IR-UWB) transceiver, operating in three channels within 3-5GHz for centimeter-to-meter range biotelemetry. Fabricated in 90nm 1P/9M CMOS, the transceiver integrates an all-digital transmitter (TX) with a waveform-synthesis pulse generator and a timing generator for pulse modulation and phase scrambling, as well as a non-coherent receiver (RX) with front-end RF amplification/filtering, self-correlation for energy detection and digital synchronization of the baseband clock and data. The TX can be digitally programmed to operate in three bandwidth-adjustable channels with their FCC-compliant power spectral density (PSD) centered at ~3.4, 4.1 and 4.65GHz. The RX RF front-end can provide up to 37dB of gain with adjustable bandwidth, fast roll-off and tunable center frequency at 3.5, 4 and 4.5GHz for channel selection and robustness against out-of-band noise/interference. With two off-chip, UWB antennae, wireless transfer of pseudo-random binary sequence (PRBS) data at 100Mbps over 2m is shown with TX and RX energy consumption of 14pJ/pulse and 0.18nJ/b, respectively, from 1.2V.
Keywords :
CMOS integrated circuits; biomedical telemetry; low-power electronics; pulse generators; pulse modulation; radio receivers; radio transmitters; ultra wideband antennas; CMOS; FCC-compliant power spectral density; IR-UWB transceiver; PRBS data; PSD; RF filtering; RX RF front-end; TX; UWB antenna; adjustable bandwidth; all-digital transmitter; bandwidth-adjustable channels; baseband clock; bit rate 100 Mbit/s; centimeter-to-meter range biotelemetry; channel selection; digital synchronization; distance 2 m; energy consumption; energy detection; frequency 3 GHz to 5 GHz; front-end RF amplification; impulse radio ultra wideband transceiver; noncoherent receiver; phase scrambling; pseudorandom binary sequence data; pulse modulation; size 90 nm; timing generator; tunable center frequency; waveform-synthesis pulse generator; wireless transfer; CMOS integrated circuits; Delays; Frequency measurement; Generators; Radio frequency; Transceivers; Wireless communication;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2014 IEEE Proceedings of the
Conference_Location :
San Jose, CA
DOI :
10.1109/CICC.2014.6946131
