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This paper presents a novel combination of two fully integrated phase-locked loops (PLLs) to control the oscillation frequency and modulation frequency of a switched injection-locked oscillator (SILO). The SILO is used as an active reflector transponder in a frequency-modulated continuous wave (FMCW) radar system. A fractional-N PLL (RF-PLL) with a tri-state phase-frequency detector (TSPFD) sets the...
In this publication, a fully integrated active backscatter transponder for the positioning and fast rescue of passengers from sea in case of a ship sinking emergency is presented. The active reflector tag is applied in a frequency modulated continuous wave (FMCW) radar and to the authors knowledge is for the first time ever reported based on a Colpitts oscillator topology in common-base configuration...
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