Title :
22-29GHz Ultra-Wideband CMOS Pulse Generator for Collision Avoidance Short Range Vehicular Radar Sensors
Author :
Oncu, Ahmet ; Badalawa, B. B M Wasanthamala ; Wang, Tong ; Fujishima, Minoru
Author_Institution :
Sch. of Frontier Sci., Tokyo Univ., Kashiwa
Abstract :
The pseudo millimeter wave 22-29GHz ultra-wideband (UWB) is attractive for the applications in short-range (SR) automotive radar sensors in order to contribute to significant reduction of traffic fatalities. Although CMOS is suitable for the short-range radar since processing units can be implemented in the same chip with the UWB front-end building block, it is difficult to operate CMOS pulse generators at such a high frequency. To realize the pseudo-millimeter-wave band using CMOS, we have proposed a new pulse generator consisting of a series of delay cells and edge combiners with waveform shaping. As a result of measurement using 90nm CMOS technology, 1Gbps pulses are successfully generated with a power consumption of 1.4mW at a supply voltage of 0.9V. This result is the key technology for a one-chip SR cost effective radar sensors.
Keywords :
CMOS integrated circuits; automotive electronics; collision avoidance; microwave integrated circuits; nonelectric sensing devices; pulse generators; road vehicle radar; ultra wideband technology; 0.9 V; 1 Gbit/s; 1.4 mW; 22 to 29 GHz; 90 nm; CMOS technology; UWB front-end; collision avoidance; delay cells; edge combiners; pseudomillimeter-wave band; short range vehicular radar sensors; ultrawideband CMOS pulse generator; waveform shaping; CMOS process; CMOS technology; Collision avoidance; Millimeter wave radar; Millimeter wave technology; Pulse generation; Pulse measurements; Strontium; Ultra wideband radar; Ultra wideband technology;
Conference_Titel :
Design Automation Conference, 2007. ASP-DAC '07. Asia and South Pacific
Conference_Location :
Yokohama
Print_ISBN :
1-4244-0629-3
Electronic_ISBN :
1-4244-0630-7
DOI :
10.1109/ASPDAC.2007.357957
