Title :
A fully integrated 77-GHz radar transmitter based on a low phase-noise 19.25-GHz fundamental VCO
Author :
Starzer, Florian ; Fischer, Alexander ; Forstner, Hans Peter ; Knapp, Herbert ; Wiesinger, Friedrich ; Stelzer, Andreas
Author_Institution :
Christian Doppler Lab. for Integrated Radar Sensors, Johannes Kepler Univ., Linz, Austria
Abstract :
A 77-GHz automotive radar transmitter is presented. The transmitter is based on a 19.25-GHz Colpitts voltage controlled oscillator, that feeds two cascaded frequency doubler stages. In a following medium power amplifier (MPA) the signal recovers after frequency transformation. Finally a power amplifier (PA) adds 6 dB to the power level after the MPA. In addition, an emitter follower stage connected to the oscillators output drives a switchable divide-by-16/32 stage realized in emitter-coupled-logic (ECL).
Keywords :
frequency synthesizers; phase locked loops; phase noise; road vehicle radar; voltage-controlled oscillators; Colpitts voltage controlled oscillator; VCO; automotive radar transmitter; emitter-coupled-logic; frequency 19.25 GHz; frequency 77 GHz; frequency doubler; low phase-noise; medium power amplifier; Frequency conversion; Frequency measurement; Phase locked loops; Radar; Semiconductor device measurement; Temperature measurement; Tuning; Bipolar transistor oscillators; CW radar; Frequency conversion; Frequency synthesizers; Phase locked loops; Voltage controlled oscillators;
Conference_Titel :
Bipolar/BiCMOS Circuits and Technology Meeting (BCTM), 2010 IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-8578-9
DOI :
10.1109/BIPOL.2010.5667953
