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Fully-Integrated CMOS Direct-Conversion Receiver for 5GHz Wireless LAN

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6 Author(s)
Mi-Young Lee ; Div. of Electron. & Comput. Eng., Hanyang Univ., Seoul ; Chan-Young Jeong ; Changsik Yoo ; Yong-Hoon Kim
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Fully-integrated CMOS direct-conversion receiver for 5GHz wireless LAN has been developed. To minimize the DC-offset due to LO self-mixing, sub-harmonic mixing is used for down-conversion. For quadrature down-conversion with sub-harmonic mixing, octa-phase LO signals are generated by an integer-N type frequency synthesizer. Implemented in a 0.18mum CMOS technology, the receiver dissipates 97mA from a 1.8V supply voltage and has 6.5dB NF and -4dBm IIP3 from 5.15GHz to 5.35GHz. The phase noise of the closed-loop VCO is -108dBc/Hz at 1MHz offset

Published in:

Silicon Monolithic Integrated Circuits in RF Systems, 2007 Topical Meeting on

Date of Conference:

10-12 Jan. 2007

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