Design and optimisation method for ultra-low-power ZigBee receiver front-end

作者:Wang, Zengqi; Li, Zhiqun*; Cheng, Guoxiao; Luo, Lei; Gao, Yuwenyuan
来源:Electronics Letters, 2016, 52(13): 1181-1182.
DOI:10.1049/el.2016.0532

摘要

An ultra-low-power (ULP) CMOS full-band (780/868/915/2400 MHz) ZigBee receiver front-end is presented. The front-end consists of a wideband common-gate LNA and an I/Q current-commutating mixer. Current reuse and active trans-conductance (gm) boosting techniques are utilised in this design. Details on design and optimisation method for the proposed ULP receiver front-end are provided. Measurement results for 180 nm RF CMOS implementation show the front-end has a conversion gain of 25.2 dB at sub-GHz bands and 17.5 dB at 2.4 GHz band. The minimum noise figure at sub-GHz bands is 7.3 dB. The receiver front-end consumes only 0.826 mA from a 1.0 V DC supply and the size of the core circuit is 0.052 mm(2).