Voltage-controlled oscillator

Details Voltage-controlled oscillator Voltage-controlled oscillator

2008-07-08

2008-07-08

Mis, David (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C331S1170FE, C331S17700V

Reexamination Certificate

active

11563757

ABSTRACT:
A voltage-controlled oscillator including a voltage-controlled oscillation section, a frequency control bias circuit, a temperature compensation bias circuit, and a temperature compensation bias generation circuit. The temperature compensation bias generation circuit has a transistor having its collector or drain connected to the temperature compensation bias circuit, a first resistor having one end connected to the collector or drain of the transistor and having another end that is grounded, a second resistor having one end connected to the base or gate of the transistor, a base or gate bias application terminal connected to another end of the second resistor, a third resistor having one end connected to the emitter or source of the transistor, and an emitter or source bias application terminal connected to another end of the third resistor.

REFERENCES:
patent: 4751475 (1988-06-01), Kubo et al.
patent: 6040744 (2000-03-01), Sakurai et al.
patent: 62-021304 (1987-01-01), None
patent: 62-031205 (1987-02-01), None
patent: 64-049406 (1989-02-01), None
patent: 1-300604 (1989-12-01), None
patent: 8-008643 (1996-01-01), None
patent: 2000-244243 (2000-09-01), None
patent: 2004-320239 (2004-11-01), None
Kishimoto, et. Al., “A 60-Ghz-band Subharmonically Injection Laocked VCO MMIC Operating over Wide Temperature Range”, International Microwave Symposium Digest, Jun. 2005.

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