Abstract— A design of a low-cost K-band FMCW radar module with integrated microstrip antenna arrays and onboard digital signal processing has been presented. The radar utilizes antenna arrays with series feeding network which minimizes dissipation losses and allows for realization of high-gain antennas. The radar’s microcontroller unit is able to perform complete signal processing at real time which makes the presented sensor suitable for fully autonomous operation. Moreover, the presented radar module is capable of performing interferometric measurements. The interferometric capability of the developed unit allows for measurements of object displacement with precision on the order of tens of micrometers.
Index Terms— FMCW radar, integrated radar sensor, series-fed microstrip antenna array.
The authors are with the AGH University of Science and Technology, Krakow, Poland (e-mail: {piotr.kaminski, slomian, wincza, gruszczy}@agh.edu.pl).
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Cite: Piotr Kaminski, Izabela Slomian, Krzysztof Wincza, and Slawomir Gruszczynski, " Fully Integrated, Multipurpose Low-Cost K-Band FMCW Radar Module with Sub-Milimeter Measurement Precision," International Journal of Information and Electronics Engineering vol. 5, no. 2, pp. 74-78, 2015.
