Calibration of passive harmonic-rejection mixer

Calibration of passive harmonic-rejection mixer

An electronic device comprising a passive harmonic-rejection mixer (400) and a calibration circuitry (425). The passive harmonic rejection mixer has an input (102) connected to several sub-mixer stages (402), and the sub-mixer stages are connected to a summing module (406, 408) for generating the ou...

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Hauptverfasser: VAN SINDEREN, JAN, DE JONG, GERBEN, JEURISSEN, DENNIS, BREKELMANS, JOHANNES HUBERTUS ANTONIO
Format: Patent
Sprache:eng ; fre ; ger
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BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRICITY
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creator VAN SINDEREN, JAN
DE JONG, GERBEN
JEURISSEN, DENNIS
BREKELMANS, JOHANNES HUBERTUS ANTONIO
description An electronic device comprising a passive harmonic-rejection mixer (400) and a calibration circuitry (425). The passive harmonic rejection mixer has an input (102) connected to several sub-mixer stages (402), and the sub-mixer stages are connected to a summing module (406, 408) for generating the output (104). Each sub-mixing stage comprises a gating module (414), an amplifier (416), and a weighting module (418), the gating module selectively passing the input signal or the input signal with inverted polarity under the control of control signals. The calibration circuitry (425) is adapted to input a reference signal (430) to the input of the mixer, receive an output signal (104) from the output of the mixer, and set the weights (K1, K2, K3, K4) of the weighting modules to make the output signal match an expected output signal.
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subjects BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRICITY
title Calibration of passive harmonic-rejection mixer
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