A mixed Si and GaAs chip set for millimeter-wave automotive radar front-ends

Authors:
  • AWA. Werthof
    A. Werthof
  • HTH. Tischer
    H. Tischer
  • TGT. Grave
    T. Grave
  • HWH. Werthmann
    H. Werthmann
  • RRR.H. Rasshofer
    R.H. Rasshofer
  • WKW. Kellner
    W. Kellner

Abstract
A chip set consisting of three GaAs HEMT MMICs (voltage-controlled oscillator, medium power amplifier, subharmonic mixer) and a discrete Si Schottky mixer diode has been developed for 77 GHz automotive radar systems. It facilitates the realization of a high performance millimeter-wave radar front-end with a minimum amount of chip area and, consequently, low production costs.