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

Author

Lee, Mi-Young ; Jeong, Chan-Young ; Yoo, Changsik ; Kim, Yong-Hoon ; Hwang, Jin-Hong ; Park, Jin-Soo

Author_Institution

Div. of Electron. & Comput. Eng., Hanyang Univ., Seoul

fYear

2007

Firstpage

201

Lastpage

204

Abstract

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

Keywords

CMOS integrated circuits; frequency synthesizers; microwave integrated circuits; microwave receivers; voltage-controlled oscillators; wireless LAN; 0.18 micron; 1.8 V; 5 GHz; 5.15 to 5.35 GHz; 6.5 dB; 97 mA; CMOS technology; LO self-mixing; closed-loop VCO; direct-conversion receiver; down-conversion; integer-N type frequency synthesizer; octa-phase LO signals; sub-harmonic mixing; wireless LAN; 1f noise; Baseband; CMOS technology; Electronics packaging; Filters; Operational amplifiers; Phase locked loops; Radio frequency; Voltage-controlled oscillators; Wireless LAN; CMOS; direct-conversion receiver; frequency synthesizer; wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Long Beach, CA

Print_ISBN

0-7803-9764-9

Electronic_ISBN

0-7803-9765-7

Type

conf

DOI

10.1109/SMIC.2007.322794

Filename

4117361