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A 52-mW 3.1–10.6-GHz Fully Integrated Correlator for IR-UWB Transceivers in 0.18 \mu\hbox {m} CMOS

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11 Author(s)
Haolu Xie ; Freescale Semicond., Austin, TX, USA ; Wang, A. ; Lin Lin ; He Tang
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Correlators play key roles in impulse radio ultrawideband (IR-UWB) transceivers. Multiplier-based correlator performs correlation-type demodulation in addition to select desired UWB signals by correlating incoming pulses with templates. This paper reports design and implementation of a fully integrated low-power broadband multiplier-based correlator for a 3.1-10.6-GHz fullband IR-UWB receiver in 0.18 μm CMOS that consists of a UWB multiplier core, two UWB pulse generators, single-ended-to-differential-ended converter, a first-order RC integrator with a 200-MHz bandwidth, and a buffer. Measurement results confirm desired correlation-type demodulation and correlation functions with a conversion gain of 11.03 dB, noise figure of 15.7 dB, very low power consumption of 52 mW and a 1-dB compression point of better than -0.8 dBm over a 7.5-GHz bandwidth.

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Industrial Electronics, IEEE Transactions on  (Volume:57 ,  Issue: 5 )