Title :
A front-end of FMCW anticollision radar
Author :
Chunguang, Jing ; XiaoBo, Yang
Author_Institution :
Chongqing Commun. Inst., China
Abstract :
The design and performance of a low cost X-band front-end of an FMCW anticollision radar which mainly consists of VCO, buffer, circulator and mixer is described in this paper. It operates at 9 GHz with over 300 MHz linear tuning range. The excellent GaAs MESFET voltage controlled oscillator has a good balance between the high output power and wide tuning range. A GaAs FET balanced resistive mixer is used in this circuit which provides the low intermodulation and low 1/f noise even at the very low IF (to tens of Hz). All of these features are very suitable for the application of this kind of radar
Keywords :
CW radar; FM radar; collision avoidance; microwave integrated circuits; radar equipment; road vehicle radar; transceivers; 9 GHz; FMCW anticollision radar; GaAs; GaAs FET balanced resistive mixer; GaAs MESFET VCO; MESFET voltage controlled oscillator; MIC; SHF; buffer; circulator; linear tuning range; low 1/f noise; low cost X-band front-end; low intermodulation; vehicle collision warning system; Circuit noise; Circuit optimization; Costs; FETs; Gallium arsenide; MESFETs; Power generation; Radar; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2000, 2nd International Conference on. ICMMT 2000
Conference_Location :
Beijing
Print_ISBN :
0-7803-5743-4
DOI :
10.1109/ICMMT.2000.895748
