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Crosstalk Suppression for Modulated Subcarrier Measurement Systems

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3 Author(s)
Jorgen Schneider ; Institut für Hoch- und Höchstfrequenztechnik, Ruhr-Universität Bochum, 4630 Bochum, Federal Republic of Germany ; Uwe Gartner ; Burkhard Schiek

A double modulation technique to reduce both low frequency crosstalk and RF-crosstalk in modulated measurement systems has been developed. The modulation concept uses two double balanced mixers as modulators, which are driven by appropriate signals to yield a high crosstalk suppression. The achieved crosstalk reduction when using the double modulation technique compared to a standard modulation technique is typically better than 25 dB. Measurement results demonstrating the effectiveness of the double modulation technique are presented.

Published in:

Microwave Conference, 1987. 17th European

Date of Conference:

7-11 Sept. 1987