Title :
A new 94 GHz collision avoidance radar sensor using six-port phase frequency discriminator
Author :
Moldovan, E. ; Tatu, S.O. ; Gaman, T. ; Ke Wu ; Bosisio, R.G.
Author_Institution :
Dept. de Genie Electr., Ecole Polytech. de Montreal, Que., Canada
Abstract :
A new prototype of collision avoidance radar sensor at 94 GHz is proposed. The receiver front-end module is realized using a six-port phase/frequency discriminator (SPD). The SPD is composed of four 90/spl deg/ hybrid couplers fabricated in metal blocks using a computer numerically controlled (CNC) milling machine. System simulations to obtain the relative speed of the target and the distance to the target using a SPD model based on 90/spl deg/ hybrid coupler measurement results, are presented. Statistical evaluations of the proposed radar sensor performances are also discussed.
Keywords :
Doppler radar; collision avoidance; discriminators; electronic engineering computing; millimetre wave receivers; radar receivers; road vehicle radar; waveguide couplers; 94 GHz; CNC milling machines; Doppler frequency measurement; automotive radar; collision avoidance radar sensors; metal block fabricated hybrid couplers; mm-wave sensors; radar receiver front-end modules; six-port phase frequency discriminators; target distance/relative speed system simulations; waveguide SPD circuits; Collision avoidance; Computational modeling; Computer numerical control; Couplers; Frequency; Metalworking machines; Performance evaluation; Prototypes; Radar; Velocity measurement;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1211009
