Power amplifier

A power amplifier, comprising:

• a first amplifier connected to a first power;
• a second amplifier connected to a second power;
• a common input impedance matching unit impedance matching inputted signals and outputting the inputted signals to the first amplifier and the second amplifier;
• a common output impedance matching unit impedance matching and outputting the signals amplified from the first amplifier and the second amplifier;
• an output impedance matching unit electrically connected between the first amplifier and the common output impedance matching unit, and modifying an output voltage value of the first amplifier to an output voltage value of the second amplifier;
• and
• an input impedance matching unit electrically connected between the common input impedance matching unit and the first amplifier, and compensating a phase shift occurring during the voltage modification of the output impedance matching unit,
• wherein the output impedance matching unit is a low pass type impedance matching circuit having a negative phase shift (−Φ), and the input impedance matching unit is a high pass type impedance matching circuit having a positive phase shift (+Φ).

A power amplifier, comprising:

• a first amplifier connected to a first power;
• a second amplifier connected to a second power;
• a common input impedance matching unit impedance matching inputted signals and outputting the inputted signals to the first amplifier and the second amplifier;
• a common output impedance matching unit impedance matching and outputting the signals amplified from the first amplifier and the second amplifier;
• an output impedance matching unit electrically connected between the first amplifier and the common output impedance matching unit, and modifying an output voltage value of the first amplifier to an output voltage value of the second amplifier;
• and
• an input impedance matching unit electrically connected between the common input impedance matching unit and the first amplifier, and compensating a phase shift occurring during the voltage modification of the output impedance matching unit,
• wherein the output impedance matching unit is a high pass type impedance matching circuit having a positive phase shift (+Φ), and the input impedance matching unit is a low pass type impedance matching circuit having a negative phase shift (−Φ).

A power amplifier, comprising:

• a low power amplifier connected to a first power;
• a high power amplifier connected to a second power being switched by a switch;
• a common input impedance matching unit impedance matching inputted signals and outputting the inputted signals to the low power amplifier and the high power amplifier;
• a common output impedance matching unit impedance matching and outputting the signals amplified from the low power amplifier and the high power amplifier;
• a low pass type output impedance matching unit electrically connected between the low power amplifier and the common output impedance matching unit, and having a negative phase shift (−Φ) so as to modify an output voltage value of the low power amplifier to an output voltage value of the high power amplifier;
• and
• a high pass type output impedance matching unit electrically connected between the common input impedance matching unit and the low power amplifier, and having a positive phase shift (+Φ) so as to compensate a phase shift occurring during the voltage modification of the output impedance matching unit.

A power amplifier, comprising:

• a low power amplifier connected to a first power;
• a high power amplifier connected to a second power being switched by a switch;
• a common input impedance matching unit impedance matching inputted signals and outputting the inputted signals to the low power amplifier and the high power amplifier;
• a common output impedance matching unit impedance matching and outputting the signals amplified from the low power amplifier and the high power amplifier;
• a high pass type output impedance matching unit electrically connected between the low power amplifier and the common output impedance matching unit, and having a positive phase shift (+Φ) so as to modify an output voltage value of the low power amplifier to an output voltage value of the high power amplifier;
• and
• a low pass type input impedance matching unit electrically connected between the common input impedance matching unit and the low power amplifier, and having a negative phase shift (−Φ) so as to compensate a phase shift occurring during the voltage modification of the output impedance matching unit.