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Feasibility of automotive radar at frequencies beyond 100 GHz

2012; Cambridge University Press; Volume: 5; Issue: 1 Linguagem: Inglês

10.1017/s175907871200075x

1759-0795

Mike Köhler, Jürgen Hasch, Hans Ludwig Blöcher, Lorenz-Peter Schmidt,

RFID technology advancements

Radar sensors are used widely in modern driver assistance systems. Available sensors nowadays often operate in the 77 GHz band and can accurately provide distance, velocity, and angle information about remote objects. Increasing the operation frequency allows improving the angular resolution and accuracy. In this paper, the technical feasibility to move the operation frequency beyond 100 GHz is discussed, by investigating dielectric properties of radome materials, the attenuation of rain and atmosphere, radar cross-section behavior, active circuits technology, and frequency regulation issues. Moreover, a miniaturized antenna at 150 GHz is presented to demonstrate the possibilities of high-resolution radar for cars.