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A low power receiver analog front end (AFE) for ultra-wideband impulse radio (UWB-IR) was developed in 0.18 mum CMOS. All circuits of the receiver AFE operate intermittently with a sampling clock of an analog-digital converter (ADC). The sampling rate of the ADC is equal to pulse repetition frequency of the received signals. Power consumption of the receiver AFE is decreased 60% by intermittent operation...
A 60-GHz receiver (RX) chip fabricated in 90 nm CMOS process is reported. The RX chip consists of an LNA, a downconversion mixer and a phase-locked loop synthesizer. The RX chip is capable of generating LO signal from phase-locked synthesizer. Measured power gain and NF of 22 dB and 8.4 dB were obtained at 61.5 GHz. These results indicate the possibility of realization of CMOS single-chip 60-GHz transceiver.
A new topology for injection locked frequency divider (ILFD) is proposed to achieve high speed, wide locking range and quadrature phase operation. The dividing mechanism is analyzed and agrees well with the simulation. A prototype is implemented in TSMC 90 nm CMOS and realizes 4 GHz locking range (55.8 GHz-59.8 GHz) with -3 dBm input power and 5 mW DC power consumption. The divider attains the widest...
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