公开(公告)号：US10050608B2

公开(公告)日：2018-08-14

申请号：US15189235

申请日：2016-06-22

申请人： THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

发明人： Archita Hati ,  Craig Nelson ,  David Howe

IPC分类号： H03C1/06 ,  H03C3/04 ,  H03C5/00 ,  H03K5/1252 ,  H03C3/02

摘要： A phase modulation (PM) noise reducer to reduce phase modulation noise of an oscillator, the PM noise reducer including: an amplitude modulation (AM) detector to receive a primary oscillator signal and to produce an AM detector signal based on the primary oscillator signal, the primary oscillator signal including a first phase modulation (PM) noise; a control circuit in electrical communication with the AM detector to receive the AM detector signal and to produce a control signal; a phase shifter in electrical communication with the control circuit to receive the primary oscillator signal and the control signal and to produce a secondary oscillator signal based on the primary oscillator signal and the control signal, the secondary oscillator signal comprising a second PM noise, wherein the second PM noise is less than the first PM noise.