A low cost 24-GHz FMCW radar for automobile application

Author

Wang, Chuang ; Qian, Rong ; Yang, Ming-hui ; Sun, Yun ; Gu, Jian-zhong ; Sun, Xiao-wei

Author_Institution

Shanghai Inst. of Micro-Syst. & Inf. Technol., China

Volume

3

fYear

2005

fDate

4-6 Oct. 2005

Abstract

A 24-GHz frequency modulation continuous-wave radar sensor with a novel type, low-profile, and low cost array antenna, is presented. A Gunn voltage-controlled oscillator and the driver amplifier MMIC act as transmitter and a rat-race hybrid mixer act as receiver, respectively, connected by a hexaferrite microstrip circulator. A 100-patch microstrip antenna array with a high gain and a narrow beam width operates at radar system in k-band. This antenna is made by 10×10 elements (90×90mm²), the E-plane has the 3dB beam-width ±3.5°, and H-plane has a slightly broader beam-width ±7°. The gain measured at 24GHz is 22dB.

Keywords

CW radar; FM radar; Gunn oscillators; MMIC amplifiers; MMIC mixers; ferrite circulators; microstrip antenna arrays; road vehicle radar; voltage-controlled oscillators; 22 dB; 24 GHz; FMCW radar; Gunn voltage-controlled oscillator; automobile application; coplanar waveguide; driver amplifier MMIC; frequency modulation continuous-wave radar sensor; hexaferrite microstrip circulator; microstrip antenna array; rat-race hybrid mixer; Antenna arrays; Automobiles; Costs; Frequency modulation; Gunn devices; Microstrip antenna arrays; Microstrip antennas; Radar antennas; Radar applications; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2005 European

Print_ISBN

2-9600551-2-8

Type

conf

DOI

10.1109/EUMC.2005.1610381

Filename

1610381