Title :
A 24-GHz CMOS UWB Radar Transmitter With Compressed Pulses
Author :
Yang, Jaemo ; Pyo, Gitae ; Kim, Choul-Young ; Hong, Songcheol
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
fDate :
4/1/2012 12:00:00 AM
Abstract :
A fully integrated 24-GHz CMOS ultra-wideband (UWB) radar transmitter for short-range automotive application is presented. For high-range resolution and improved signal-to-noise ratio, a pulse compression technique using binary phase code is adopted. Design issues of UWB radar transmitter are investigated based on fundamental pulse theory. A pulse former, which operates as a switch to generate a pulse modulated carrier signal and a bi-phase modulator for pulse compression, is proposed. The proposed transmitter achieves 4-GHz output signal bandwidth, which means a minimum range resolution of 7.5 cm, and the total dc power dissipation is 63 mW.
Keywords :
CMOS integrated circuits; radar transmitters; road vehicle radar; ultra wideband radar; CMOS UWB radar transmitter; CMOS ultra wideband radar transmitter; automotive application; bandwidth 4 GHz; binary phase code; biphase modulator; compressed pulses; dc power dissipation; frequency 24 GHz; power 63 mW; pulse compression; pulse modulated carrier signal; pulse theory; signal-to-noise ratio; size 7.5 cm; Generators; Power generation; Switches; Transmitters; Ultra wideband radar; Voltage-controlled oscillators; Automotive radar; CMOS; UWB radar transmitter; binary phase modulation; compressed pulse; pulse compression technique; ultra-wideband (UWB);
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2012.2184136
