Power combined power amplifier

A system, comprising:

• a transmit circuit;
• a first amplifier;
• a second amplifier;
• a first input hybrid coupler having a first port, a second port, a third port, and a fourth port, wherein the third port of the first input hybrid coupler is coupled to an input of the first amplifier, and the fourth port of the first input hybrid coupler is coupled to an input of the second amplifier;
• a first input switching network coupled to the transmit circuit, the first port of the first input hybrid coupler, and the second port of the first input hybrid coupler, wherein the first input switching network is configured to selectively couple the transmit circuit to the first port of the first input hybrid coupler or the second port of the first input hybrid coupler;
• a third amplifier;
• a fourth amplifier;
• a second input hybrid coupler having a first port, a second port, a third port, and a fourth port, wherein the third port of the second input hybrid coupler is coupled to an input of the third amplifier, and the fourth port of the second input hybrid coupler is coupled to an input of the fourth amplifier;
• and
• a second input switching network coupled to the transmit circuit, the first port of the second input hybrid coupler, and the second port of the second input hybrid coupler, wherein the second input switching network is configured to selectively couple the transmit circuit to the first port of the second input hybrid coupler or the second port of the second input hybrid coupler.