13.2 A Ku-band 260mW FMCW synthetic aperture radar TRX with 1.48GHz BW in 65nm CMOS for micro-UAVs

Abstract

Synthetic aperture radar (SAR) that complements optical imagers with capabilities to acquire imagery during night and inclement weather is indispensable for remote sensing, traffic mapping, etc. Recent unmanned aerial vehicles (UAVs) have been miniaturized to <;1m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> , providing an inexpensive and flexible platform for SAR imaging applications. Besides, there is increasing demand on the high resolution SAR imaging function. For both, it is a requisite to develop a single-chip SAR TRX with <;300mW power consumption, <;10mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> size and <;20cm resolution, making it suitable for payload on micro-UAVs.