In-phase/quadrature-phase generating device and phase shift device using the same

A phase shift apparatus comprising:

• an In-phase/Quadrature-phase (I/Q) signal generating apparatus configured to generate a phase signal;
• a vector controller configured to generate a current control signal;
• and
• a vector generator configured to adjust amplitudes and directions of input phase vectors based on the phase signal and the current control signal and to generate a corresponding modulation signal,
• wherein the I/Q signal generating apparatus comprises:
• a first resonance circuit including a first resistor, a first capacitor and a first inductor;
• and
• a second resonance circuit including a second resistor, a second capacitor and a second inductor;
• wherein
• the first resistor is connected at one end to a first input terminal, and connected at another end to a first output terminal;
• the second resistor is connected at one end to a second input terminal, and connected at another end to a second output terminal;
• the first capacitor is connected to the one end of the first resistor and to the other end of the second resistor;
• and
• the first inductor is connected to the other end of the first resistor and to the one end of the second resistor, crossing between the first resistor and the first capacitor.