Miniature radar for mobile devices

We developed a miniature and low-cost radar (radio detection and ranging) sensor for mobile devices. A radar differs from other mobile sensors - it provides diverse capabilities such as detection, tracking, ranging, and imaging. As a proof-of-concept for a radar sensor, we prototyped two X-band radars: using miniaturized X-band antennas: an X-band bi-static radar and time-division multiplexed, multiple-input multiple-output, and eight-elements phased-array radar. Using these radar sensors, we also demonstrated data acquisition and signal processing in real-time and supported both standalone and distributed applications. In particular, Range-Time-Intensity (RTI), Doppler-Time-Intensity (DTI), and Range-Angle-Intensity (RAI) were depicted as the illustrative signal processing algorithms, and Android smartphone was used as the illustrative processing platform.