Constant rate sweep frequency generator

Details Constant rate sweep frequency generator Constant rate sweep frequency generator

1977-07-08

1978-10-10

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 4, 331 14, 331178, H03B 304, H03B 2300

Patent

active

041199278

ABSTRACT:
A variable frequency oscillator including a nonlinear element for varying the frequency has alternately attached thereto a phase lock loop for maintaining the base or starting frequency of the oscillator substantially constant, and a sweep generator with a rate error loop for sensing the frequency linearity of the output sweep and altering the input signal to maintain the output linear.

REFERENCES:
patent: 3221266 (1965-11-01), Vitkovits, Jr.
patent: 3382460 (1968-05-01), Blitz et al.
patent: 3530399 (1970-09-01), Goggins, Jr.
patent: 3638135 (1972-01-01), Stover

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