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http://dx.doi.org/10.5515/KJKIEES.2014.25.6.671

Ka-Band FMCW Sensor with High Linearity  

Kim, Jaehwan (School of Electronic and Electrical Engineering, Sungkyunkwan University)
Lee, Sungju (Communication R&D Center, Samsung Thales)
Kwon, Hyukja (Communication R&D Center, Samsung Thales)
Yang, Youngoo (School of Electronic and Electrical Engineering, Sungkyunkwan University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.6, 2014 , pp. 671-678 More about this Journal
Abstract
This paper presents a Ka-band FMCW sensor that has high linearity by improving a nonlinear behavior of the voltage controlled oscillator. Due to the nonlinear characteristics of the voltage controlled oscillator for the conventional method, the drift of beat frequency can cause inaccuracy and errors to the extracted results. A Ka-band FMCW signal with fast transition time could be generated by using both direct digital synthesizer and phase locked loop in this research. The implemented FMCW sensor showed very high accuracy in beat frequency through the test.
Keywords
Beat Frequency; Direct Digital Synthesizer; FMCW; Ka-Band Transceiver; Phase Locked Loop;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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