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Novel integrated coaxial line to cylindrical waveguide directive couplers in pipelines for process monitoring applications

Penirschke, A. and Freese, J. and Biebel, J. and Allenberg, B. and Jakoby, Rolf (2005):
Novel integrated coaxial line to cylindrical waveguide directive couplers in pipelines for process monitoring applications.
In: Proc. IEEE MTT-S International Microwave Symposium Digest, pp. 4 pp.-, [Online-Edition: http://elib.tu-darmstadt.de/ieee/iel5/10171/32491/01516892.p...],
[Conference or Workshop Item]

Abstract

This paper presents a novel coaxial line to circular cylindrical waveguide directive coupler, using a resonant configuration of two integrated coaxial-fed microstrip patches opposite arranged in a measurement pipeline, this configuration a directivity of more than 4 dB at 5.7 GHz can be achieved without disturbing the cross-section of the pipeline. The insertion loss of the proposed coupler is low and hence about -1 dB of the input signal is transmitted into the desired direction of the circular waveguide which is a gain of 2 dB compared to a conventional E-field probe. Similar to commercial available mass flow meters two of these couplers, at a distance of 0.4 m in the measurement section, form a mass flow sensor (Penirschke et al., 2004).

Item Type: Conference or Workshop Item
Erschienen: 2005
Creators: Penirschke, A. and Freese, J. and Biebel, J. and Allenberg, B. and Jakoby, Rolf
Title: Novel integrated coaxial line to cylindrical waveguide directive couplers in pipelines for process monitoring applications
Language: English
Abstract:

This paper presents a novel coaxial line to circular cylindrical waveguide directive coupler, using a resonant configuration of two integrated coaxial-fed microstrip patches opposite arranged in a measurement pipeline, this configuration a directivity of more than 4 dB at 5.7 GHz can be achieved without disturbing the cross-section of the pipeline. The insertion loss of the proposed coupler is low and hence about -1 dB of the input signal is transmitted into the desired direction of the circular waveguide which is a gain of 2 dB compared to a conventional E-field probe. Similar to commercial available mass flow meters two of these couplers, at a distance of 0.4 m in the measurement section, form a mass flow sensor (Penirschke et al., 2004).

Uncontrolled Keywords: circular waveguides, coaxial waveguides, flow sensors, microstrip directional couplers, microwave measurement, process monitoring 0.4 m, 2 dB, 5.7 GHz, circular waveguides, cylindrical waveguide directive couplers, dielectric measurements, directional couplers integrated coaxial line, integrated coaxial-fed microstrip patches low insertion loss, mass flow sensors, microwave measurements, process monitoring, resonant configuration, waveguide couplers
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics > Microwave Engineering
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics
Event Title: Proc. IEEE MTT-S International Microwave Symposium Digest
Date Deposited: 27 Jan 2012 15:18
Official URL: http://elib.tu-darmstadt.de/ieee/iel5/10171/32491/01516892.p...
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