Voltage controlled oscillator and sensitivity adjustment

A voltage controlled oscillator comprising;

• a resonator for generating an oscillation signal, a frequency of which is in response to a control signal;
• amplifying means for amplifying the oscillation signal;
• oscillation frequency adjusting means for adjusting the frequency of the oscillation signal;
• and
• voltage control sensitivity adjusting means for adjusting a voltage control sensitivity of the oscillation signal,
• wherein said resonator comprises an input terminal to which the control signal is applied, a variable capacitance diode and a main inductor;
• said oscillation frequency adjusting means comprises a first variable inductor arranged between the input terminal and said amplifying means, which is serially connected to said main inductor of the resonator;
• and
• said voltage control sensitivity adjusting means comprises a second variable inductor arranged between a hot terminal of said variable capacitance diode and a hot terminal of the first variable inductor.

A voltage controlled oscillator comprising:

• a resonator for generating an oscillation signal, a frequency of which is in response to a control signal;
• amplifying means for amplifying the oscillation signal;
• oscillation frequency adjusting means for adjusting the frequency of the oscillation signal;
• and
• voltage control sensitivity adjusting, means for adjusting a voltage control sensitivity of the oscillation signal,
• wherein said resonator comprises an input terminal to which the control signal is applied, a variable capacitance diode and a main inductor;
• said oscillation frequency adjusting means comprises a variable inductor arranged between the input terminal and said amplifying means, which is serially connected to said main inductor of the resonator;
• and
• said voltage control sensitivity adjusting means comprises a variable capacitor arranged between a hot terminal of said variable capacitance diode and a hot terminal of said variable inductor.

A voltage controlled oscillator comprising;

• a resonator for generating an oscillation signal, a frequency of which is in response to a control signal;
• amplifying, means for amplifying the oscillation signal;
• oscillation frequency adjusting means for adjusting the frequency of the oscillation signal;
• and
• voltage control sensitivity adjusting means for adjusting a voltage control sensitivity of the oscillation signal,
• wherein said resonator comprises an input terminal to which the control signal is applied, a variable capacitance diode and a main inductor;
• said oscillation frequency adjusting means comprises a variable capacitor arranged in parallel with said main inductor of said resonator;
• and
• said voltage control sensitivity adjusting means comprises a variable inductor arranged between said input terminal and said amplifying means, and also arranged between a hot terminal of said variable capacitance diode and a hot terminal of the main inductor of said resonator.

A method of ad adjusting a voltage control oscillator having the components of an input terminal to which a control signal is applied, an amplifier, a variable capacitance diode, a main inductor, a first variable capacitor arranged in parallel with the main inductor, and a second variable capacitor arranged between the input terminal and the amplifier, and also arranged between a hot terminal of the variable capacitance diode and a hot terminal of the main inductor, comprising the steps of:

• adjusting an oscillating frequency of the voltage control oscillator to be a first value by trimming a conductive material forming the first variable capacitor;
• adjusting a voltage control sensitivity of the voltage control oscillator to be a predetermined value by trimming a conductive material forming the second variable capacitor;
• and
• adjusting an oscillating frequency of the voltage control oscillator to be a second value by trimming said conductive material forming the first variable capacitor.

A method of adjusting a voltage control oscillator having the components of an input terminal to which a control signal is applied, an amplifier, a variable capacitance diode, a main inductor, a first variable inductor arranged between the input terminal and the amplifier, which is serially connected to the main inductor, and a second variable inductor arranged between a hot terminal of the variable capacitance diode and a hot terminal of the first variable inductor, comprising the steps of;

• adjusting an oscillating frequency of the voltage control oscillator to be a first value by trimming a conductive material forming the first variable inductor;
• adjusting a voltage control sensitivity of the voltage control oscillator to be a predetermined value by trimming a conductive material forming the second variable inductor;
• and
• adjusting said oscillating frequency of the voltage control oscillator to be a second value by trimming said conductive material forming the first variable inductor.

A method of adjusting a voltage control oscillator having the components of an input terminal to which a control signal is applied, all amplifier, a variable capacitance diode, an amplifier, a main inductor, a variable inductor arranged between the input terminal and the amplifier, which is serially connected to the main inductor, and a variable capacitor arranged between a hot terminal of the variable capacitance diode and a hot terminal of the main inductor, comprising the steps of:

• adjusting an oscillating frequency of the voltage control oscillator to be a first value by trimming a conductive material forming the variable inductor;
• adjusting a voltage control sensitivity of the voltage control oscillator to be a predetermined value by trimming a conductive material forming the variable capacitor;
• and
• adjusting said oscillating frequency of the voltage control oscillator to be a second value by trimming a conductive material forming the variable inductor.

A method of adjusting a voltage control oscillator having the components of an input terminal to which a control signal is applied, an amplifier, a variable capacitance diode, a main inductor, a variable capacitor arranged in parallel with the main inductor, and a variable inductor arranged between the input terminal and the amplifier, and also arranged between a hot terminal of the variable capacitance diode and a hot terminal of the main inductor, comprising the steps of:

• adjusting an oscillating frequency of the voltage control oscillator to be a first value by trimming a conductive material forming the variable capacitor;
• adjusting a voltage control sensitivity of the voltage control oscillator to be a predetermined value by trimming a conductive material forming the variable inductor;
• and
• adjusting said oscillating frequency of the voltage control oscillator to be a second value by trimming said conductive material forming the variable capacitor.