Zero to one hundred and eight-degree active phase shifter for microwave frequencies
First Claim
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1. A 0°
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active phase shifter for microwave frequencies, characterized in that it comprises a differential input amplifier receiving an input signal and having an inverting output and a non-inverting output, and a first and a second output stage of the push-pull type realized with MESFET transistors, each stage comprising an inverting input and a non-inverting input, said inverting output controlling the inverting input of the first output stage and the non-inverting input of the second output stage and said non-inverting output controlling the non-inverting input of the first output stage and the inverting input of the second output stage, the outputs of the two output stages constituting the outputs of the phase shifter.
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Abstract
A zero to one hundred and eight-degree active phase shifter for microwave frequencies contains a differential input amplifier having an inverting output (βV) and a non-inverting output (αV) and a first (T11, T12) and a second (T13, T14) 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 (βV) of the input amplifier controls the inverting input (T12) of the first output stage and the non-inverting input (T13) of the second output stage. The non-inverting output (αV) of the input amplifier controls the non-inverting input (T11) of the first output stage and the inverting input (T14) of the second output stage.
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4 Claims
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1. A 0°
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active phase shifter for microwave frequencies, characterized in that it comprises a differential input amplifier receiving an input signal and having an inverting output and a non-inverting output, and a first and a second output stage of the push-pull type realized with MESFET transistors, each stage comprising an inverting input and a non-inverting input, said inverting output controlling the inverting input of the first output stage and the non-inverting input of the second output stage and said non-inverting output controlling the non-inverting input of the first output stage and the inverting input of the second output stage, the outputs of the two output stages constituting the outputs of the phase shifter. - View Dependent Claims (2, 3, 4)
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