Skip to main content Accessibility help

Feasibility of automotive radar at frequencies beyond 100 GHz

  • Mike Köhler (a1), Jürgen Hasch (a2), Hans Ludwig Blöcher (a3) and Lorenz-Peter Schmidt (a1)


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.


Corresponding author

Corresponding author: M. Köhler Email:


Hide All
[1]Lucas, B.D.: 360° Surround Automotive Radar, IWPC Workshop, May 2012, Göteborg, Sweden.
[2]Hasch, J.; Topak, E.; Schnabel, R.; Zwick, T.; Weigel, R.; Waldschmidt, C.: Millimeter-wave technology for automotive radar sensors in the 77 GHz frequency band. IEEE Trans. Microw. Theory Tech., 60 (3) (2012), 845860.
[3]International Technology Roadmap for Semiconductors (ITRS). Millimeter Wave 10 GHz-100 GHz Technology Requirements, 2010, available at:
[4]Pfeiffer, U.R.: Silicon CMOS/SiGe transceiver circuits for THz applications, in 2012 IEEE 12th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF), January 2012, 159162.
[5]Schuler, K.; Younis, M.; Lenz, R.; Wiesbeck, W.: Array design for automotive digital beamforming radar system, in Proc 2005 IEEE Int. Radar Conf., May 2005, 435440.
[6]Kilian, A.; Schmidt, L.-P.: A novel fabrication process for printed antennas integrated in polymer multi-layer car body panels, in European Microwave Conf., September 2009, 578581.



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed