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Correlation-based analysis of mode converters in multimode waveguides

Published online by Cambridge University Press:  26 July 2013

Ivan Russo ,
Winfried Mayer ,
Stefan Pflueger  and
Wolfgang Menzel
Ivan Russo*
Affiliation:
Institute of Microwave and Photonic Engineering – TU-Graz, Graz 8010, Austria
Winfried Mayer
Affiliation:
Endress+Hauser GmbH+Co. KG, Maulburg 79689, Germany
Stefan Pflueger
Affiliation:
EADS Deutschland GmbH, Ottobrunn 85521, Germany
Wolfgang Menzel
Affiliation:
Institute for Microwave Techniques – University of Ulm, Ulm 89081, Germany
*
Corresponding author: I. Russo Email: [email protected]
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Abstract

In this work, a novel method for the mode content extrapolation in multimode waveguides with focus on the characterization of mode converters is presented. The proposed method is based on the direct determination of the correlation coefficients between the structural functions of all possible propagating modes and the complex measured near-field pattern. To implement the method, standard near-field equipment is simply required. Test simulations and measurements from 4 to 8 GHz on a 6-in. circular pipe for radar level monitoring are reported in the last section and demonstrate that the proposed technique provides accurate information about the mode content of the structure under test.

Keywords

Microwave measurementsWave propagation and scattering: modeling and measurements
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 5 , Issue 6 , December 2013 , pp. 721 - 728
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2013 

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References

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