Title :
A Transformer-Feedback based wideband IF amplifier and mixer for a heterodyne 60 GHz receiver in 40 nm CMOS
Author :
Bhagavatula, Venumadhav ; Boers, Michael ; Rudell, Jacques C.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
This paper presents a wideband Intermediate Frequency (IF) amplifier and downconverter implemented for a 60-GHz receiver in a standard CMOS 40nm process. A Source-Gate Transformer-Feedback based cascode IF amplifier with a flat passband response over a frequency range of 11 GHz to 13 GHz is presented. An on-chip Lange Coupler is used to generate quadrature (I/Q) Local Oscillator (LO) signals. The I/Q downconverter employs a threewinding transformer to couple the transconductance (Gm) stage with the I and Q switching stages. Measured results show a peak receiver downconversion power-gain of 27.6dB with a maximum gain variation of 3.6dB, 4.7dB NF, -22dBm IIP3 while consuming 28.8mW from a 0.9V supply.
Keywords :
CMOS analogue integrated circuits; field effect MIMIC; millimetre wave amplifiers; millimetre wave mixers; millimetre wave oscillators; millimetre wave receivers; CMOS process; I switching stages; I-Q LO signals; I-Q downconverter; Q switching stages; flat passband response; frequency 11 GHz to 13 GHz; frequency 60 GHz; gain 27.6 dB; gain 3.6 dB; heterodyne receiver; noise figure 4.7 dB; on-chip Lange coupler; peak receiver downconversion power-gain; power 28.8 mW; quadrature local oscillator signals; size 40 nm; source-gate transformer-feedback based cascode IF amplifier; transconductance stage; transformer-feedback based wideband IF amplifier; transformer-feedback based wideband IF mixer; voltage 0.9 V; wideband intermediate frequency amplifier; CMOS integrated circuits; Mixers; Passband; Receivers; Standards; Wideband; Intermediate Frequency; Lange Coupler; Mixer; Transformer-Feedback;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-0413-9
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2012.6242256
