Atmel Corporation

Atmel Automotive Gmbh

Robert Boschgmbh

Michael Amann

Leo Friesen

Juergen Schnabel

Thorsten Fahlbusch

Stephan Gerlach

Andreas Leistner

Carsten Friedrich

Carsten Huber

Hermann Roehlk

An antenna amplifier, receiving system, operating method, and use of a receiving system, is provided. The antenna amplifier includes a first signal input and a second signal input for connecting antennas, a first amplifier circuit connected to the first signal input and having a first digital control signal input for receiving a first digital control signal for setting an amplification of the first amplifier circuit and a first signal output, a second amplifier circuit connected to the second signal input and having a second digital control signal input for receiving a second digital control signal for setting an amplification of the second amplifier circuit and a second signal output, a summator connected to the first signal output and the second signal output for outputting a sum signal to a sum signal output, and a digital gain controller with a digital command signal input for receiving a digital command signal and a digital control signal output for outputting the first digital control signal and the second digital control signal.

Antenna amplifier, receiving system, operating method, and use of a receiving system

A compensating circuit for a mixer stage is provided, wherein the mixer stage has an input stage to which an input signal for mixing can be applied and has, following the input stage, a switching stage for mixing a differential input signal&#x2014;obtained from the input stage as a function of the input signal&#x2014;with an oscillator signal, wherein the input of the compensating circuit can be connected to an input signal terminal of the input stage and the output of the compensating circuit can be connected to an input signal terminal of the switching circuit at which the differential input signal obtained by means of the input stage is present, and wherein a compensating signal obtained by means of a compensating stage of the compensating circuit, in particular for compensating intermodulation products, can be produced by the compensating circuit at its output. The compensating circuit has a compensating input stage with means for influencing an amplitude and/or phase of the input signal, by which means the compensating stage can be supplied with a modified input signal.

Compensating circuit for a mixer stage

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Murr, Germany

Michael Amann