A multiple-path amplifier, comprising: a power splitter (12, 702) configured to receive a radio frequency input signal, RF IN; a first amplifier (20, 554, 704) coupled to a first output of the power splitter (12, 702) by a first signal conduction path (14, 550, 714), the first amplifier (20, 554, 704) configured to receive a first signal from the power splitter (12, 702); a second amplifier (22, 556, 706) coupled to a second output of the power splitter (12, 702) by a second signal conduction path (16, 552, 716), the second amplifier (22, 556, 706) configured to receive a second signal from the power splitter (12, 702); a first directional coupler (202, 502, 720) coupled to the first signal conduction path (14, 550, 714), the first directional coupler (202, 502, 720) configured to couple electromagnetic energy from the first signal conduction path (14, 550, 714) into a first output signal (204, 504, 722); a first delay element (206, 506, 724) configured to impose a phase delay on the first output signal (204, 504, 722) of the first directional coupler (202, 502, 720) to generate a first delayed output signal, wherein the phase delay imposed by the first delay element (206, 506, 724) is configured to make the first delayed output signal antiphase, at a location along the second signal conduction path (16, 552, 716), to the signal induced in the second signal conduction path (16, 552, 716) by the first signal in the first signal conduction path (14, 550, 714); and a first coupler (208, 508, 726) coupled to the second signal conduction path (16, 552, 716), the first coupler (208, 508, 726) being connected to the first delay element (206, 506, 724) and configured to inject the delayed output signal into the second signal conduction path (16, 552, 716); characterized by a second directional coupler (302, 510, 736) coupled to the second signal conduction path (16, 552, 716), the second directional coupler (302, 510, 736) configured to produce a second output signal (304, 512, 738) based on the second signal in the second signal conduction path (16, 552, 716) of the multiple-path amplifier; a second delay element (306, 514, 740) configured to impose a second phase delay on the second output signal (304, 512, 738) of the second directional coupler (302, 510, 736) to generate a second delayed output signal; and a second coupler (308, 516, 742) coupled to the first signal conduction path (14, 550, 714), the second coupler (308, 516, 742) being connected to the second delay element (306, 514, 740) and configured to inject the second delayed output signal into the first signal conduction path (14, 550, 714). a power splitter (12, 702) configured to receive a radio frequency input signal, RF IN; a first amplifier (20, 554, 704) coupled to a first output of the power splitter (12, 702) by a first signal conduction path (14, 550, 714), the first amplifier (20, 554, 704) configured to receive a first signal from the power splitter (12, 702); a second amplifier (22, 556, 706) coupled to a second output of the power splitter (12, 702) by a second signal conduction path (16, 552, 716), the second amplifier (22, 556, 706) configured to receive a second signal from the power splitter (12, 702); a first directional coupler (202, 502, 720) coupled to the first signal conduction path (14, 550, 714), the first directional coupler (202, 502, 720) configured to couple electromagnetic energy from the first signal conduction path (14, 550, 714) into a first output signal (204, 504, 722); a first delay element (206, 506, 724) configured to impose a phase delay on the first output signal (204, 504, 722) of the first directional coupler (202, 502, 720) to generate a first delayed output signal, wherein the phase delay imposed by the first delay element (206, 506, 724) is configured to make the first delayed output signal antiphase, at a location along the second signal conduction path (16, 552, 716), to the signal induced in the second signal conduction path (16, 552, 716) by the first signal in the first signal conduction path (14, 550, 714); and a first coupler (208, 508, 726) coupled to the second signal conduction path (16, 552, 716), the first coupler (208, 508, 726) being connected to the first delay element (206, 506, 724) and configured to inject the delayed output signal into the second signal conduction path (16, 552, 716); characterized by a second directional coupler (302, 510, 736) coupled to the second signal conduction path (16, 552, 716), the second directional coupler (302, 510, 736) configured to produce a second output signal (304, 512, 738) based on the second signal in the second signal conduction path (16, 552, 716) of the multiple-path amplifier; a second delay element (306, 514, 740) configured to impose a second phase delay on the second output signal (304, 512, 738) of the second directional coupler (302, 510, 736) to generate a second delayed output signal; and a second coupler (308, 516, 742) coupled to the first signal conduction path (14, 550, 714), the second coupler (308, 516, 742) being connected to the second delay element (306, 514, 740) and configured to inject the second delayed output signal into the first signal conduction path (14, 550, 714).