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In this paper a prototype of an ultra-compact continuous-wave (CW) and frequency-modulated continuous-wave (FMCW) radar system using a highly-integrated radar chip and in-package antennas will be presented. An introduction will be given on the concept of antenna integration for millimeter-wave radar and the advantages of such systems. The radar then will be described in its main components, a 122 GHz Integrated Circuit including in-package antennas as well as the acquisition and processing system realized using flexible printed circuit board (FLEX PCB) technology. Furthermore initial measurements of the radar system will be presented and explained. [ABSTRACT FROM AUTHOR]

Abstract: The necessary reduction of the human footprint demanded by Sustainable Development can be measured by the entropy flow of the society to the environment. The classic tools of process evaluation as e.g. exergetic or life cycle analysis are able to evaluate existing solutions. But their use during the design phase is quite limited because of lacking information about the system and its components. They may be helpful for evolutionary development strategies on a long term only. But reversible process structures can be used as benchmarks already in the conceptual design phase to introduce the demands of the second law. It can be shown that basic human demands on housing, mobility, communication, and infrastructure and industry can be principally supplied by reversible process structures. Because the process logic is a virtual one, real processes can be engineered with a reversible structure however its components produce irreversible entropy flows. Hybrid cars are the most common examples here. The use of exergetic efficiencies allows a transfer of the results of reversible structures to real technology easily. The here presented methodology of sustainable engineering can be summarized by three design rules as using reversible structures, considering technology by exergetic efficiencies, and minimizing components’ entropy export. The still increasing utilization of electricity in upcoming technologies is very helpful for introducing reversible structures within hybrid technologies. [Copyright &y& Elsevier]

Abstract: In this paper a voltage-controlled oscillator (VCO) is presented reaching oscillation frequencies well above 100GHz. The oscillator has been fabricated in a 200GHz SiGe:C BiCMOS technology with 0.25μm minimum feature size. In the design of the VCO two circuit approaches were considered. The first used transmission- lines in the resonator and the second used inductors above the silicon substrate. It is shown by simulation that by using inductors a higher oscillation frequency can be obtained. The fabricated oscillator has a tuning range from 113.2 to 117.2GHz at a supply voltage of −3V. This oscillation frequency is the highest reported so far for a silicon-based transistor technology. [Copyright &y& Elsevier]