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A millimeter-wave active inductor that exploits the current amplification between two spirals of an integrated transformer is herein presented. The circuit has been designed in 65nm bulk CMOS technology. Post-layout simulation results have shown an equivalent inductance of 116 pH with a quality factor exceeding 600 at 55 GHz. [ABSTRACT FROM PUBLISHER]

A review on millimeter-wave CMOS voltage controlled oscillators is presented in this paper. Current state of the art implementations are reviewed and their performances are compared. Low power and low phase noise LC-VCO and ring oscillator designs are analyzed and discussed. VCO design and performance trends over the last years are provided and discussed. The review shows how in the higher region of the millimetre-wave frequency spectrum over 60 GHz ring oscillators exhibit performance close and comparable to those achievable by LC-VCOs. [ABSTRACT FROM PUBLISHER]

Passive radiometry is a health-safe alternative to other imaging techniques conceived to be used on human beings for security or medical purposes. In this work we discuss the feasibility study of a W-band passive radiometer for imaging applications in nano-scale CMOS technology, with particular emphasis on the impact of the non-idealities of the detector on the overall system performances. [ABSTRACT FROM PUBLISHER]

This paper reports two complements on phase noise analysis and design of CMOS ring oscillators. In detail, it proposes an extension to current analytical methods for predicting flicker noise contribution to phase noise in differential CMOS ring oscillators. The results of the proposed analysis are compared with the existing methods and simulation results by SpectreRF for two differential topologies. The comparative analyses confirm that the proposed method leads to an improvement of the prediction accuracy in spite of the small increase of complexity since it only requires device dimensions in addition to the data required by existing methods. The proposed method may also be used to indicate a minimum achievable close-in phase noise in a process node. Moreover, a design approach for low phase noise inverter-based ring oscillator is proposed and tested by means of simulation. The limitations of the proposed method can be observed from this case study. [ABSTRACT FROM PUBLISHER]

A 60-GHz LC oscillator implemented in 65nm CMOS technology by ST-Microelectronics is presented. A three spiral transformer has been used to achieve low phase noise and low power consumption. Post-layout simulations show that the oscillator core is capable to operate with a supply voltage as low as 0.4 V, while dissipating 1.42 mW. Post-layout simulated phase noise is equal to −87dBc/Hz at 1-MHz offset from the carrier (60.44 GHz) when supplied with 0.4 V, and −93dBc/Hz at 1-MHz offset from the carrier (61.41 GHz) when supplied at 1.2 V. [ABSTRACT FROM PUBLISHER]