Title :
A 24-GHz CMOS Direct-Conversion Sub-Harmonic Downconverter
Author :
Kodkani, Rahul M. ; Larson, Lawrence E.
Author_Institution :
UCSD, La Jolla
Abstract :
A 24 GHz sub-harmonic mixer based downconverter is presented. Fabricated in a 0.13 um CMOS process the downconverter includes a pre-amplifier and an IF buffer and consumes 13.6 mW with a 1.6 V supply. The quadrature LO buffer consumes 15 mA at 1.2 V. The circuit includes a single-ended to differential phase splitter for the LO. The downconverter has a conversion gain of 3.2 dB and DSB noise figure of 10 dB. The measured input referred 1 dB compression point is -12.7 dBm.
Keywords :
CMOS analogue integrated circuits; MMIC frequency convertors; MMIC mixers; buffer circuits; integrated circuit design; low-power electronics; preamplifiers; CMOS process; IF buffer; current 15 mA; differential phase splitter; direct-conversion downconverter; frequency 24 GHz; gain 3.2 dB; noise figure 10 dB; power 13.6 mW; pre-amplifier design; quadrature LO buffer; single-ended splitter; size 0.13 mum; sub-harmonic mixer; voltage 1.2 V; voltage 1.6 V; Bandwidth; CMOS technology; Integrated circuit noise; Millimeter wave technology; Mixers; Noise figure; Radio frequency; Switches; Threshold voltage; Wireless communication; CMOS; Millimeterwave; Passive mixer; Sub-harmonic; Wireless;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0530-0
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2007.380929
