Voltage-controlled oscillator with wide modulation bandwidth

Details Voltage-controlled oscillator with wide modulation bandwidth Voltage-controlled oscillator with wide modulation bandwidth

1991-12-20

1992-10-27

Mis, David

Oscillators

With frequency adjusting means

With voltage sensitive capacitor

331DIG3, H03B 512

Patent

active

051592932

ABSTRACT:
A voltage-controlled oscillator capable of very high ratios of modulation to oscillation frequency is disclosed embodying a resonant circuit with an inductance and two tuning diodes connected with opposite polarity in series across the inductance, a cross-coupled feedback amplifier circuit with two matched MMIC inverting amplifiers capacitively cross-coupled to the resonant circuit for driving the resonant circuit into oscillation at its resonant frequency to produce an output carrier wave, and a transmission line resonator connected to the resonant circuit between the tuning diodes to couple a wide band frequency modulating voltage thereto for modulating the output carrier wave.

REFERENCES:
patent: 3613029 (1971-10-01), Bartlett
patent: 4003004 (1977-01-01), Fletcher et al.
patent: 4918406 (1990-04-01), Baumbach et al.

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