Abstract: An RF power combiner used to combine an output received from a plurality of power amplifiers. The combined output is used to operate a gas discharge laser. In some embodiments, the power combiner consists of a network of transformers that provide an output to a load. In other embodiments, the power combiner consists of a plurality of transmission lines that are connected to a common connection point.

Abstract: An embodiment of four-way binary power combiner consists of a first 1:1 transformer that combines a 50 ohm output impedance received from an output of a first power amplifier and a 50 ohm output impedance received from an output of second power amplifier to provide a 25 ohm first transformer output impedance at a first transformer output. A first 100 ohm difference resistor is connected between the first power amplifier output and the second amplifier output. The second 1:1 transformer combines a 50 ohm output impedance received from an output of a third power amplifier and a 50 ohm output impedance received from an output of a fourth power amplifier to provide a 25 ohm second transformer output impedance at a second transformer output. A second 100 ohm difference resistor is connected between the third power amplifier output and the fourth power amplifier output. A 50 ohm difference resistor is connected between the first transformer output and the second transformer output.