A fully integrated 77-GHz Radar Transmitter based on a Low Phase?Noise 19.25-GHz Fundamental VCO
Sprache des Titels:
Proceedings of IEEE Bipolar BiCMOS Circuits and Technology Meeting
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 emittercoupled?logic (ECL).