By Vadim Issakov
There are non-stop efforts focussed on bettering highway site visitors security around the globe. quite a few motor vehicle security features corresponding to motive force information structures were invented. Many motive force information positive aspects depend upon radar-based sensors, yet are pricey. attention of inexpensive radar front-end circuits could permit their implementation in more cost-effective financial system automobiles, significantly contributing to site visitors safeguard. rate relief calls for high-level integration of the microwave front-end circuitry, in particular analog and electronic circuit blocks co-located on a unmarried chip. The publication offers the layout, implementation, and characterization of microwave receiver circuits in CMOS and SiGe bipolar applied sciences. The applicability of a typical electronic 0.13 μm CMOS expertise for consciousness of a 24 GHz narrow-band radar front-end sensor is investigated. The awarded circuits are appropriate for car, commercial and patron functions, as e.g. lane-change assistant, door openers or alarms.
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There are non-stop efforts focussed on enhancing highway site visitors defense world wide. a variety of automobile security measures reminiscent of motive force advice platforms were invented. Many motive force suggestions positive factors depend upon radar-based sensors, yet are expensive. consciousness of inexpensive radar front-end circuits might allow their implementation in less costly financial system automobiles, significantly contributing to site visitors security.
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Extra info for Microwave Circuits for 24 GHz Automotive Radar in Silicon-based Technologies
V. 1007/978-3-642-13598-9_3, © Springer-Verlag Berlin Heidelberg 2010 19 20 3 CMOS and Bipolar Technologies two basic types of transistors - the n-channel and the p-channel MOSFET. The structure in Fig. 13 µm C11N technology . The p-well and n-well are formed in a p-type substrate without an additional intermediate epitaxial layer, since the C11N process is realized on a non-epi substrate . The NMOS and PMOS transistors are realized in the low-doped p-well and n-well, respectively. The well can be contacted and is usually referred to as the bulk or the body.
Long-range radar (LRR) systems have a maximum range of up to 200 m and an angular coverage of ±4◦ to ±8◦ . Most of the commercially available systems use the allocated 76 − 77 GHz frequency range and operate in continuous wave mode using FMCW. However, there are also systems available that offer similar functionality using a narrow-band 24 GHz radar . The long-range sensors are implemented typically for ACC. 1, the integrated circuits for a radar front-end should fulfill demanding performance requirements around the frequency of 24 GHz.
Html. 15. H. -M. Meinecke, ‘‘Waveform design principles for automotive radar systems’’, in CIE International Conference on Radar, pp. 1--4, Beijing, China, October 2001. 16. M. Schneider, ‘‘Automotive Radar Status and Trends’’, in German Microwave Conference (GeMiC), pp. 144--147, Ulm, Germany, April 2005. 17. J. Godin, M. Riet, S. Blayac, P. -L. Benchimol, A. Konczykowska, A. Kasbari, P. Andre, and N. Kauffman, ‘‘Improved InGaAs/InP DHBT Technology for 40 Gbit/s Optical Communication Circuits’’, in IEEE GaAs IC Symposium Technical Digest, pp.