Title :
A SiGe:C BiCMOS 140 GHz wideband frequency multiplier-by-8 with differential output
Author :
Shuai Yuan ; Schumacher, Hermann
Author_Institution :
Inst. of Electron Devices & Circuits, Ulm Univ., Ulm, Germany
Abstract :
This paper presents a wideband frequency multiply-by-8 IC for F band FMCW radar application. It combines an active balun, three push-push doubler stages and a buffer stage. The doubler stage uses a transformer for single to differential conversion, with good output balance and compact size. The measured 3 dB output bandwidth of the multiplier is about 30 GHz from 110 GHz to 140 GHz with low harmonics. With 2.5 V power supply, the multiplier can deliver 4.7 dBm output power at 140 GHz and consumes 170 mW.
Keywords :
CW radar; FM radar; frequency multipliers; BiCMOS; F band FMCW radar application; active balun; buffer stage; differential conversion; differential output; frequency 140 GHz; power 170 mW; push-push doubler stages; voltage 2.5 V; wideband frequency multiplier; Gain; Harmonic analysis; Impedance matching; Power generation; Power measurement; Wideband; Frequency multiplier; MMIC; SiGe; differential output balance; multiply by 8; push-push doubler; transformer; wideband;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2013 European
Conference_Location :
Nuremberg
