公开(公告)号：US10523225B2

公开(公告)日：2019-12-31

申请号：US15690144

申请日：2017-08-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bichoy Bahr ,  Baher Haroun ,  Ali Kiaei

IPC: H03L7/24 ,  H03K3/03 ,  H03H9/54 ,  H03K3/013 ,  H03H9/58

Abstract: For producing a low-power, low-phase noise oscillating signal using a self-injection locking oscillator, examples include: producing, using an oscillator, a signal having a base frequency component, an Mth harmonic component and a Pth harmonic component, in which M and P are selected integers and M>P>1; filtering the signal through one or more bandpass filters including at least two resonators, the filters having Q factor ≥5, the filters configured to pass the Mth and Pth harmonic components; multiplying the filtered Mth and Pth harmonic components together to produce a multiplied signal, and filtering the multiplied signal using a low pass filter to pass a difference between the filtered Mth and Pth harmonic components, the difference including a filtered beat frequency waveform; and injecting the filtered beat frequency waveform into the oscillator to injection lock the signal to the filtered beat frequency waveform.