A 1.76mW, 100Mbps Impulse Radio UWB Receiver with Multiple Sampling Correlators Eliminating Need for Phase Synchronization in 65-nm CMOS
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概要
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A low power impulse radio ultra-wideband (IR-UWB) receiver for DC-960MHz band is proposed in this paper. The proposed receiver employs multiple DC power-free charge-domain sampling correlators to eliminate the need for phase synchronization. To alleviate BER degradation due to an increased charge injection in a subtraction operation in the sampling correlator than that of an addition operation, a comparator with variable threshold (=offset) voltage is used, which enables an addition-only operation. The developed receiver fabricated in 1.2V 65nm CMOS achieves the lowest energy consumption of 17.6pJ/bit at 100Mbps in state-of-the-art correlation-based UWB receivers.
著者
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LIU Lechang
Institute of Industrial Science, The University of Tokyo
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ZHOU Zhiwei
Institute of Industrial Science, The University of Tokyo
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SAKURAI Takayasu
Institute of Industrial Science, The University of Tokyo
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TAKAMIYA Makoto
VLSI Design and Education Center, The University of Tokyo
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