Phase inverter and push-pull amplifier using the same

Details Phase inverter and push-pull amplifier using the same Phase inverter and push-pull amplifier using the same

1990-01-18

1992-04-21

Gensler, Paul

Amplifiers

Including a push-pull stage

Input and/or output coupling for push-pull

330275, H03F 330, H01P 522

Patent

active

051072238

ABSTRACT:
A phase inverter includes first, second, third and fourth terminals, a first coupling circuit coupled between the first and second terminals, a second coupling circuit coupled between the second and third terminals, a third coupling circuit coupled between the third and fourth terminals, and a fourth coupling circuit coupled between the first and fourth terminals. The first to fourth terminals and the first to fourth coupling circuits are arranged into a ring. The first coupling circuit is of a type different from a type of the fourth coupling circuit. The second and third coupling circuits are identical in type. Two output signals having a phase difference of 180.degree. are drawn from the second and fourth terminal when an input terminal is applied to the first terminal, and an output signal is drawn from the first terminal when two input signals having a phase difference of 180.degree. are applied to the second and fourth terminals. A push-pull amplifier using two phase inverter each having the above-mentioned configuration is also provided.

REFERENCES:
patent: 3996533 (1976-12-01), Lee
patent: 4316160 (1982-02-01), Dydyk
patent: 4578652 (1986-03-01), Sterns
patent: 4697161 (1987-09-01), Buoli
patent: 4749969 (1988-06-01), Boire et al.
S. Toyoda, "Power Combining System Using Two Push Pull Power Amplifiers", The 13th International Conference on Infrared and Millimeter Wave, Dec. 1988, pp. 53-54.

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