| 摘要 |
PURPOSE: A local oscillator using a single alarming at an x band is provided to provide a single alarm function by integrating an alarm function of informing locked phase data in digital and an alarm function of informing locked phase data in digital. CONSTITUTION: A PLDRO(Phase Locked Dielectric Resonator Oscillator) comprises a digital phase-locked loop(Phase Locked Loop) part(100) and an analog PLL part(200). A digital phase locked loop part comprises a PLL part, a first loop filter(120), a VCXO(130), a low-pass filter(140), and a first amplifier(150). An analog PLL part comprises a first attenuator(210), a second amplifier(220), a phase comparator(230), a second loop filter(240), a dielectric resonator(250), an oscillator(252), a second attenuator(260), a third amplifier(270), a directional coupler(280), a third attenuator(282), and a prescaler(290). |
