Zero to one hundred and eight-degree active phase shifter for mi

Details Zero to one hundred and eight-degree active phase shifter for mi Zero to one hundred and eight-degree active phase shifter for mi

1988-01-20

1989-05-16

Wan, Gene

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330255, H03F 345

Patent

active

048313360

ABSTRACT:
A zero to one hundred and eight-degree active phase shifter for microwave frequencies contains a differential input amplifier having an inverting output (.beta.V) and a non-inverting output (.alpha.V) and a first (T.sub.11, T.sub.12) and a second (T.sub.13, T.sub.14) output stage of the push-pull type realized with MES-transistors and each comprising an inverting input and a non-inverting input. The inverting output (.beta.V) of the input amplifier controls the inverting input (T.sub.12) of the first output stage and the non-inverting input (T.sub.13) of the second output stage. The non-inverting output (.alpha.V) of the input amplifier controls the non-inverting input (T.sub.11) of the first output stage and the inverting input (T.sub.14) of the second output stage.

REFERENCES:
patent: 4667165 (1987-05-01), De Weck

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