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This paper presents an algorithmic design methodology and frequency scaling technique for CMOS VCOs. It illustrates the almost ideal scaling of a fundamental 10-GHz, 90-nm CMOS Colpitts VCO with -117 dBc/Hz phase noise and 4 dBm output power to 77 GHz. The 77-GHz VCO features linear 8.3% tuning range and a phase noise of -100.3 dBc/Hz at 1 MHz offset. The(More)
—This paper studies the asymptotic bit-error-rate (BER) performance of the joint spatio-temporal (S-T) power adaptation which has recently been proposed for beamforming space-time-coded multiantenna systems in the presence of imperfect channel state information at the transmitter (CSIT). We derive a closed-form asymptotic solution of the power adaptation,(More)
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