Multiplying oscillator and wireless apparatus in which the same is installed

A multiplying oscillator, comprising:

• a negative resistance unit having negative resistance characteristics;
• a resonance unit which is connected to the negative resistance unit, and outputs a resonance signal in which a center point becomes a node of a fundamental wave;
• and
• a frequency adjusting unit which is connected to a line type resonator, and suppresses first even harmonic of the resonance signal,
• wherein second even harmonic of the resonance signal is outputted from the center point of the line type resonator,
• wherein the frequency adjusting unit includes a first frequency adjusting unit and a second frequency adjusting unit connected to both ends of the resonance unit, respectively,
• wherein the first frequency adjusting unit and the second frequency adjusting unit are respectively constructed in series connection of an adjustment inductor and a capacity for resonance and one end of the frequency adjusting unit is connected to the resonance unit and the other end is grounded,
• wherein the resonance unit is the line type resonator, and
• wherein the adjustment inductor is constructed of a line thinner than a line width of the line type resonator.

A multiplying oscillator, comprising:

• a negative resistance unit having negative resistance characteristics;
• a resonance unit which is connected to the negative resistance unit, and outputs a first resonance signal and a second resonance signal of mutually opposite phases in a fundamental wave;
• a frequency adjusting unit which is connected to the resonance unit, and suppresses first even harmonic of the resonance signals;
• and
• a synthetic unit which is connected to the negative resistance unit, and synthesizes an in-phase component of the first resonance signal and the second resonance signal and cancels an opposite-phase component of the first resonance signal and the second resonance signal,
• wherein the synthetic unit cancels odd harmonics and a fundamental wave of the resonance signals and outputs second even harmonic of the resonance signals
• wherein the frequency adjusting unit includes a first frequency adjusting unit and a second frequency adjusting unit connected to both ends of the resonance unit, respectively,
• wherein the first frequency adjusting unit and the second frequency adjusting unit are respectively constructed in series connection of an adjustment inductor and a capacity for resonance and one end of the frequency adjusting unit is connected to the resonance unit and the other end is grounded,
• wherein the resonance unit is a line type resonator, and
• wherein the adjustment inductor is constructed of a line thinner than a line width of the line type resonator.

A multiplying oscillator, comprising:

• a negative resistance unit having negative resistance characteristics;
• a resonance unit which is connected to the negative resistance unit, and outputs first and second resonance signals of mutually opposite phases in a fundamental wave;
• a frequency adjusting unit which is connected to the resonance unit, and suppresses first even harmonic of the resonance signal;
• and
• a synthetic unit which is connected to the resonance unit, and synthesizes an in-phase component of the first and second resonance signals and cancels an opposite-phase component of the first and second resonance signals,
• wherein the synthetic unit cancels odd harmonics and a fundamental wave of the resonance signals and outputs second even harmonic of the resonance signals,
• wherein the frequency adjusting unit is constructed in series connection of an adjustment inductor and a capacity for resonance and is connected between both ends of the resonance unit.

A multiplying oscillator, comprising:

• a negative resistance unit having negative resistance characteristics;
• a resonance unit which is connected to the negative resistance unit, and outputs first and second resonance signals of mutually opposite phases in a fundamental wave;
• a frequency adjusting unit which is connected to the resonance unit, and suppresses first even harmonic of the resonance signal;
• and
• a synthetic unit which is connected to the resonance unit, and synthesizes an in-phase component of the first and second resonance signals and cancels an opposite-phase component of the first and second resonance signals,
• wherein the synthetic unit cancels odd harmonics and a fundamental wave of the resonance signals and outputs second even harmonic of the resonance signals,
• wherein the frequency adjusting unit includes a first frequency adjusting unit and a second frequency adjusting unit connected to both ends of the resonance unit, respectively,
• wherein the first frequency adjusting unit and the second frequency adjusting unit are respectively constructed in series connection of an adjustment inductor and a capacity for resonance and one end of the frequency adjusting unit is connected to the resonance unit and the other end is grounded,
• wherein the capacity for resonance is a variable capacity diode in which an oscillation frequency is changed by a control voltage.

A multiplying oscillator, comprising:

• a negative resistance unit having negative resistance characteristics;
• a resonance unit which is connected to the negative resistance unit, and outputs first and second resonance signals of mutually opposite phases in a fundamental wave;
• a frequency adjusting unit which is connected to the resonance unit, and suppresses first even harmonic of the resonance signal;
• and
• a synthetic unit which is connected to the resonance unit, and synthesizes an in-phase component of the first and second resonance signals and cancels an opposite-phase component of the first and second resonance signals,
• wherein the synthetic unit cancels odd harmonics and a fundamental wave of the resonance signals and outputs second even harmonic of the resonance signals,
• wherein fundamental components of the first resonance signal and the second resonance signal are outputted as a differential signal for phase lock circuit.