Title :
A 60 GHz heterodyne quadrature transmitter with a new simplified architecture in 90nm CMOS
Author :
Brinkhoff, James ; Lin, Fujiang ; Kang, Kai ; Pham, Duy-Dong ; Heng, Chun-Huat
Author_Institution :
Inst. of Microelectron., A*STAR, Singapore, Singapore
Abstract :
A 60 GHz heterodyne up-convertor consuming only 29 mW, together with a PA consuming 84 mW, is presented. It is implemented in 90 nm CMOS. It takes advantage of sub-harmonic mixing and a sliding IF architecture, using a single LO around the relatively low frequency of 20 GHz, thus relaxing millimeter-wave LO design. This also allowed LO buffers to be eliminated, which minimizes area and power consumption. The I/Q up-converter includes a quadrature VCO, resistive IF mixers, IF amplifier and RF sub-harmonic mixer. It achieves a tuning range of 8.8 % and a conversion gain of 13.1 dB. The 60 GHz power amplifier delivers 9.8 dBm, has 9.7 % PAE and 20 dB gain.
Keywords :
CMOS integrated circuits; buffer circuits; field effect MIMIC; millimetre wave oscillators; millimetre wave power amplifiers; mixers (circuits); radio transmitters; voltage-controlled oscillators; CMOS integrated circuit; I/Q up-converter; IF amplifier; LO buffers; RF sub-harmonic mixer; frequency 60 GHz; gain 13.1 dB; gain 20 dB; heterodyne quadrature transmitter; millimeter-wave LO design; power 29 mW; power 84 mW; power amplifier; quadrature VCO; resistive IF mixers; size 90 nm; Baseband; CMOS integrated circuits; Gain; Mixers; Transmitters; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2010 IEEE Asian
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8300-6
DOI :
10.1109/ASSCC.2010.5716613
