Injection locked oscillator automatic frequency centering method

Details Injection locked oscillator automatic frequency centering method Injection locked oscillator automatic frequency centering method

1998-03-16

2000-09-19

Grimm, Siegfried H.

Oscillators

With frequency calibration or testing

331177R, 331177V, 455316, 455318, H03L 724

Patent

active

061218472

ABSTRACT:
A method for centering the frequency of an injection locked oscillator or (ILO) includes producing measurements of the magnitude and sign of the phase difference between ILO output signals in response to alternate high level and low level RF drive signals, and tuning the center frequency of the ILO in accordance with the measurements to minimize the phase difference.

REFERENCES:
patent: 5107272 (1992-04-01), Joynson et al.
patent: 5650749 (1997-07-01), Main

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