77 GHz MMIC T/R module for diplex radar application in collision avoidance radar (CAR)

A MMIC chip set has been developed for use in a forward-looking Collision Avoidance Radar (CAR) at 77 GHz with diplex radar configuration. The chip set is designed with available MMIC foundry processes using a mix of 0.18 and 0.10 /spl mu/m T-gate PHEMT technology. The diplex radar has certain advantages over FMCW and FSK methods commonly adopted in CAR applications. For example, since this method allows for less stringent phase noise requirements on the oscillator, a common MMIC process can be used for all of the MMIC designs. The complete MMIC module has been evaluated for receive and transmit characteristics at 77 GHz and is presently awaiting road testing.

[1]  L. Verweyen,et al.  A GaAs HEMT MMIC Chip Set For Automotive Radar Systems Fabricated By Optical Stepper Lithography , 1997, GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium. 18th Annual Technical Digest 1996.

[2]  T. Nakamura,et al.  A 77 GHz T/R MMIC chip set for automotive radar systems , 1997, GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 19th Annual Technical Digest 1997.

[3]  M. Schlechtweg,et al.  Coplanar transceive MMIC for 77 GHz automotive applications based on a nonlinear design approach , 1998, 1998 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.98CH36182).

[4]  Wesley D. Boyer,et al.  A Diplex, Doppler Phase Comparison Radar , 1963, IEEE Transactions on Aerospace and Navigational Electronics.

[5]  Tatsuya Hirose,et al.  76 GHz flip-chip MMICs for automotive radars , 1998, 1998 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.98CH36182).

[6]  M. Skolnik,et al.  Introduction to Radar Systems , 2021, Advances in Adaptive Radar Detection and Range Estimation.

[7]  E.J. Barlow.  Doppler Radar , 1949, Proceedings of the IRE.

[8]  W. Davenport.  Probability and random processes , 1970 .