A fully integrated 77GHz FMCW radar system in 65nm CMOS
Journal
Digest of Technical Papers - IEEE International Solid-State Circuits Conference
Journal Volume
53
Pages
216-217
Date Issued
2010
Author(s)
Abstract
Millimeter-wave anti-collision radars have been widely investigated in advanced CMOS technologies recently. This paper presents a fully integrated 77GHz FMCW radar system in 65nm CMOS. The FMCW radar transmits a continuous wave which is triangularly modulated in frequency and receives the wave reflected from objects. As can be illustrated in Fig. 11.2.1, for a moving target, the received frequency would be shifted (i.e. Doppler shift), resulting in two different offset frequencies f+ and f- for the falling and rising ramps. Denoting the modulation range and period as B and Tm, respectively, we can derive the distance Rand the relative velocity V R as listed in Fig. 11.2.1, where fc represents the center frequency and c the speed of light. ©2010 IEEE.
SDGs
Other Subjects
Advanced CMOS; Anticollision; Center frequency; Continuous Wave; Doppler shifts; FMCW radar; Fully integrated; Moving targets; Offset frequencies; Relative velocity; Speed of light; CMOS integrated circuits; Computer crime; Radar; Radar systems; Continuous wave radar
Type
conference paper