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Next generation of car radar components will require lower cost, high electrical performances, high reliability and flexibility in order to fit with various car radar architecture. Benefit of chip partionning based on both SiGe and GaAs technologies is presented for 24GHz and 77GHz applications.
New microwave front-ends are more and more integrated and operate commonly at very high frequencies above 40 GHz. So the chip to sub-system interconnections at millimetre-wave frequencies play as key factor to address the main system requirements which are generally a low cost, a high reliability level with of course the best electrical performances. UMS has developed a 77 GHz chip-set for automotive...
A new VCO concept dedicated to automotive radar applications is described in this paper. The fully integrated architecture used makes it low cost assembly oriented. Comfortable flexibility is proposed thanks to the integration of a dual-rank prescaler, three different tuning slope ports and a variable output power. Excellent performance is also provided thanks to the use of InGaP GaAs HBT, 12% of...
This paper describes the approach used for the development of a multi-function in the millimeter wave range. Cost effective designs done in industrial environment require margin on performances for high electrical yield, size optimization and assembly constraints taken into account during the design phase. All the key steps of the development phase are considered and illustrated with concrete examples.
This paper gives the last UMS developments in the field of automotive radar at 77GHz. A complete front-end based on four MMICs is described, it is dedicated to FMCW radar for Collision Warning/Avoidance systems. A detailed characterization results are given for a single channel front-end. These designs already demonstrate high level of performance on industrial MMIC technologies.
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