Mixer stage and method for mixing two signals having different frequencies

Mixer stage and method for mixing two signals having different frequencies

A mixer stage is provided that includes an oscillator, a first input, a second input, a first output, a second output, a set of four controllable amplifier elements, and a first current source. The mixer stage further includes at least one second current source in addition to the first current sourc...

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Hauptverfasser: NG HERMAN JALLI, SAPOTTA HANS, LEISTNER ANDREAS
Format: Patent
Sprache:eng
Schlagworte:
ANALOGUE COMPUTERS
CALCULATING
COMPUTING
COUNTING
PHYSICS
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creator NG HERMAN JALLI
SAPOTTA HANS
LEISTNER ANDREAS
description A mixer stage is provided that includes an oscillator, a first input, a second input, a first output, a second output, a set of four controllable amplifier elements, and a first current source. The mixer stage further includes at least one second current source in addition to the first current source, the first current source and the at least one second current source can each be switched on and off by an associated switching input that is connected to an associated oscillator output. Pairs of amplifier elements of the set of four together with at least one of the at least two current sources in its switched-on state form a differential amplifier for an input signal present at the first input and the second input. A method for mixing frequencies is also provided.
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subjects ANALOGUE COMPUTERS
CALCULATING
COMPUTING
COUNTING
PHYSICS
title Mixer stage and method for mixing two signals having different frequencies
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