Title :
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 :
RF & Microwave Group, Shanghai Inst. of Micro-system & Inf. Technol.
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 hexferrite 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 10times10 elements (90times90 mm2) ,the E-plane has the 3 dB beam-width plusmn 3.5deg, and H-plane has a slightly broader beam-width plusmn 7deg. The gain measured at 24 GHz is 22 dB
Keywords :
CW radar; FM radar; Gunn oscillators; MMIC amplifiers; MMIC mixers; MMIC oscillators; automobiles; microstrip antenna arrays; radar antennas; road vehicle radar; voltage-controlled oscillators; 22 dB; 24 GHz; E-plane; FMCW radar; Gunn voltage-controlled oscillator; H-plane; Rat-race hybrid mixer; automobile application; driver amplifier MMIC; frequency modulation continuous-wave radar sensor; hexferrite microstrip circulator; k-band; low cost array antenna; patch microstrip antenna array; receiver; Antenna arrays; Automobiles; Costs; Frequency modulation; Gunn devices; Microstrip antenna arrays; Microstrip antennas; Radar antennas; Radar applications; Sensor arrays;
Conference_Titel :
Radar Conference, 2005. EURAD 2005. European
Conference_Location :
Paris
Print_ISBN :
2-9600551-3-6
DOI :
10.1109/EURAD.2005.1605638
