公开(公告)号：US20150270835A1

公开(公告)日：2015-09-24

申请号：US14716518

申请日：2015-05-19

Applicant: NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY

Inventor： ARCHITA HATI ,  CRAIG NELSON ,  DAVID HOWE

IPC: H03K5/1252 ,  H03C3/02

CPC classification number: H03K5/1252 ,  H03B2200/009 ,  H03C1/06 ,  H03C3/02 ,  H03C3/04 ,  H03C5/00

Abstract: 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.

Abstract translation: 一种用于减少振荡器的相位调制噪声的相位调制（PM）降噪器，所述PM降噪器包括：幅度调制（AM）检测器，用于接收主振荡器信号并且基于所述主振荡器信号产生AM检测器信号， 所述主振荡器信号包括第一相位调制（PM）噪声; 控制电路，与AM检测器电通信以接收AM检测器信号并产生控制信号; 与所述控制电路电连接以接收所述主振荡器信号和所述控制信号并基于所述主振荡器信号和所述控制信号产生辅助振荡器信号的相移器，所述辅助振荡器信号包括第二PM噪声，其中， 第二PM噪声小于第一PM噪声。