Abstract

FRANCO, Zulay  and  GARCES, Ignacio. Plataforma experimental para medir diferencia de fase entre señales a 120MhzEXPERIMENTAL PLATFORM TO MEASURE PHASE DIFFERENCE BETWEEN SIGNALS AT 120MHZ. uct [online]. 2010, vol.14, n.56, pp.175-182. ISSN 1316-4821.

This work is dedicated to high-frequency phase detector design. Test bench is specially designed to phase detection between signals at 120 MHz involved on chemical process. Although it will not be considered during experimental tests, both attenuation and phase delay has been emulated using test bench presented. Using a DDS (Direct Digital Synthesis), controlled from the computer, both LO and RF signals are generated. Phase difference between these signals is measured by quadrature-demodulador. The outputs signals are collected for acquisition card connected at PC. The experimental results of the phase detector at 120 MHz are satisfactory.

Keywords : Phase detector; high-frequency; emulator; Test bench.