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Distance measurements and limitations based on guided wave 24 GHz dual tone Six-port radar

Published online by Cambridge University Press:  25 February 2015

Stefan Lindner ,
Francesco Barbon Open the ORCID record for Francesco Barbon [Opens in a new window] ,
Sarah Linz Open the ORCID record for Sarah Linz [Opens in a new window] ,
Sebastian Mann Open the ORCID record for Sebastian Mann [Opens in a new window] ,
Robert Weigel  and
Alexander Koelpin Open the ORCID record for Alexander Koelpin [Opens in a new window]
Stefan Lindner*
Affiliation:
Institute for Electronics Engineering, University of Erlangen-Nuremberg, Cauerstr. 9, 91058 Erlangen, Germany
Francesco Barbon
Affiliation:
Institute for Electronics Engineering, University of Erlangen-Nuremberg, Cauerstr. 9, 91058 Erlangen, Germany
Sarah Linz
Affiliation:
Institute for Electronics Engineering, University of Erlangen-Nuremberg, Cauerstr. 9, 91058 Erlangen, Germany
Sebastian Mann
Affiliation:
Institute for Electronics Engineering, University of Erlangen-Nuremberg, Cauerstr. 9, 91058 Erlangen, Germany
Robert Weigel
Affiliation:
Institute for Electronics Engineering, University of Erlangen-Nuremberg, Cauerstr. 9, 91058 Erlangen, Germany
Alexander Koelpin
Affiliation:
Institute for Electronics Engineering, University of Erlangen-Nuremberg, Cauerstr. 9, 91058 Erlangen, Germany
*
Corresponding author: S. Lindner Email: [email protected]
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Abstract

In the following, a continuous wave radar system based on the Six-port principle will be shown for measurement tasks at enclosed systems needing micrometer accuracy as well as high update rates like tank level monitoring or hydraulic cylinder piston control. To exceed the ambiguity limit of such an interferometric system, a dual tone approach is used. The system will be presented with measurement results at 24 GHz within a WR42 waveguide to prove the feasibility of the proposed concept. Furthermore, considerations on timing will show the potential as a low-latency system, capable of high measurement data update rates, and different influences on the system performance and limitations of such a system will be discussed in comparison to alternative setups.

Keywords

Radar architecture and systemsRadar applications
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 7 , Special Issue 3-4: European Microwave Week 2014 , June 2015 , pp. 425 - 432
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

REFERENCES

[1] Ayhan, S., Scherr, S., Pauli, M. and Zwick, T.: FMCW radar in oil-filled waveguides for range detection in hydraulic cylinders, in Radar Conf. (EuRAD), 2012 9th European, 2012, 63–66.Google Scholar
[2] Denicke, E., Armbrecht, G. and Rolfes, I.: Radar distance measurements in circular waveguides involving intermodal dispersion effects. Int. J. Microw. Wirel. Technol., 2 (2010), 409–417.CrossRefGoogle Scholar
[3] Pohl, N., Gerding, M., Will, B., Musch, T., Hausner, J. and Schiek, B.: High precision radar distance measurements in overmoded circular waveguides. IEEE Trans. Microw. Theory Tech. 55 (6) (2007), 1374–1381.CrossRefGoogle Scholar
[4] Denicke, E., Armbrecht, G. and Rolfes, I.: A correlation-based method for precise radar distance measurements in dispersive waveguides, in Radar Conf., 2009. EuRAD 2009. European, 2009, 302–305.Google Scholar
[5] Lindner, S., Barbon, F., Linz, S., Mann, S., Weigel, R. and Koelpin, A.: Distance measurements based on guided wave 24 ghz dual tone six-port radar, in European Radar Conf. (EuRAD), 2014, 11th October 2014, 57–60.CrossRefGoogle Scholar
[6] Hoer, C.A. and Roe, K.: Using an arbitrary six-port junction to measure complex voltage ratios. IEEE Trans. Microw. Theory Tech., 23 (1975), 978–984.CrossRefGoogle Scholar
[7] Engen, G.: The six-port reflectometer: an alternative network analyzer. IEEE Trans. Microw. Theory Tech., 25 (1977), 1075–1080.CrossRefGoogle Scholar
[8] Vinci, G., Lindner, S., Barbon, F., Weigel, R. and Koelpin, A.: Promise of a better position. IEEE Microw. Mag., 13 (2012), S41–S49.CrossRefGoogle Scholar
[9] Haddadi, K., Wang, M., Glay, D. and Lasri, T.: A 60 ghz six-port distance measurement system with sub-millimeter accuracy. IEEE Microw. Wirel. Compon. Lett., 19 (2009), 644–646.CrossRefGoogle Scholar
[10] Moldovan, E., Tatu, S.-O., Gaman, T., Wu, K. and Bosisio, R.: A new 94-ghz six-port collision-avoidance radar sensor. IEEE Trans. Microw. Theory Tech., 52 (2004), 751–759.CrossRefGoogle Scholar
[11] Lindner, S., Barbon, F., Vinci, G., Mann, S., Weigel, R. and Koelpin, A.: Dual tone approach for unambiguous six-port based interferometric distance measurements, in Digest of the Impernational Microwave Symp., Seattle, USA, July 2013.CrossRefGoogle Scholar
[12] Yang, J.-R., Kim, D.-W. and Hong, S.: Quasi-circulator for effective cancellation of transmitter leakage signals in monostatic six-port radar. Electron. Lett., 45 (2009), 1093–1095.CrossRefGoogle Scholar
[13] Kim, S.-G., Kim, H., Lee, Y., Kho, I.-S. and Yook, J.-G.: 5.8 ghz vital signal sensing doppler radar using isolation-improved branch-line coupler, in Radar Conf., 2006, EuRAD 2006. 3rd European, September 2006, 249–252.CrossRefGoogle Scholar
[14] Budge, M. C. Jr., and Burt, M.: Range correlation effects in radars, in Radar Conf., 1993, Record of the 1993 IEEE National, 1993, 212–216.Google Scholar
[15] Mann, S., Lindner, S., Lurz, F., Barbon, F., Linz, S., Weigel, R. and Koelpin, A.: A microwave interferometer based contactless quasi-TEM waveguide position encoder with micrometer accuracy, in Microwave Symp. (IMS), 2014 IEEE MTT-S Int., June 2014, 1–4.CrossRefGoogle Scholar
[16] Barbon, F., Vinci, G., Lindner, S., Weigel, R. and Koelpin, A.: A six-port interferometer based micrometer-accuracy displacement and vibration measurement radar, in Int. Microw. Symp. (IMS) 2012, Montreal, Canada, 2012.CrossRefGoogle Scholar
[17] Ayhan, S., Pauli, M., Kayser, T., Scherr, S. and Zwick, T.: FMCW radar system with additional phase evaluation for high accuracy range detection, in Radar Conf. (EuRAD), 2011 European, 2011, 117–120.Google Scholar