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Investigation of a circular TE11-TE01-mode converter in stepped waveguide technique

Published online by Cambridge University Press:  10 April 2015

Christian Schulz ,
Christoph Baer ,
Thomas Musch ,
Ilona Rolfes  and
Bianca Will
Christian Schulz*
Affiliation:
Institute of Microwave Systems, Ruhr-University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
Christoph Baer
Affiliation:
Institute of Electronic Circuits, Ruhr-University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
Thomas Musch
Affiliation:
Institute of Electronic Circuits, Ruhr-University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
Ilona Rolfes
Affiliation:
Institute of Microwave Systems, Ruhr-University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
Bianca Will
Affiliation:
Department of Engineering and Economics, South Westphalia University of Applied Sciences, Lindenstr. 53, 59872 Meschede, Germany
*
Corresponding author: C. Schulz E-mail: christian.schulz-hfs@rub.de
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Abstract

A compact and broadband TE11-TE01-mode converter, suitable for various industrial applications like bypass level measurements, is presented in this contribution. Based on stepped waveguide technique, the main advantages of the recommended converter design and the specific field distribution of the TE01-mode are discussed in detail. The converter is presented exemplary for a frequency range from 23 to 28 GHz, which corresponds to a bandwidth of approximately 20 % of the center frequency. Numerous three-dimensional electromagnetic field simulations are performed to optimize the converter and to investigate its reflection and transmission behavior. Realized by six different single elements and 11 parts in total, fast and effective simulations can be performed with CST Microwave Studio. Considering realistic production process parameters, like fillets or tolerances, a good return loss better 17 dB, an insertion loss of 0.1 dB, and an excellent mode purity are achieved. Compared with back-to-back, realistic disturber scenario, and far-field measurements with a first prototype, the expected excellent converter behavior can be validated without limitations. Hence, the suitability of the presented converter design is proven and the feasibility is demonstrated.

Keywords

ModelingSimulation and characterizations of devices and circuitsRadar applications

Information

Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 7 , Special Issue 3-4: European Microwave Week 2014 , June 2015 , pp. 229 - 237
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

REFERENCES

[1] McDermott, D.B. et al. : Design of a W-band TE01 mode gyrotron traveling-wave amplifier with high power and broad-band capabilities. IEEE Trans. Plasma Sci., 30 (2002), 894–902.CrossRefGoogle Scholar
[2] Kinder, R.L. and Kushner, M.J.: TE01 excitation of electron cyclotron resonance plasma source. IEEE Trans. Plasma Sci., 27 (1999), 64–65.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 (2007), 1374–1381.CrossRefGoogle Scholar
[4] Vogt, M.: An optimized float for reliable radar tank level measurement in bypass pipes, in Microwave Conf. (GeMIC), 2014 German, March 2014, 1–4.CrossRefGoogle Scholar
[5] Schulz, C.; Will, B.; Rolfes, I.; Pohl, N.; Baer, C. and Musch, T.: Characterization of a beam steering lens antenna for industrial radar measurements in harsh environments, in 2013 European Radar Conf. (EuRAD), October 2013, 117–120.Google Scholar
[6] Gerding, M.; Musch, T.; and Schiek, B.: A novel approach for a high-precision multitargetlevel measurement system based on time-domain reflectometry. IEEE Trans. Microw. Theory Tech., 54 (2006), 2768–2773.CrossRefGoogle Scholar
[7] Matheson, K.; Ronald, K.; Speirs, D.; Phelps, A. and Cross, A.: An X-band rectangular TE10 to circular TE01 marie converter, in 2nd Annual Passive RF and Microwave Components Seminar, March 2011, 65–66.CrossRefGoogle Scholar
[8] Krill, J. and Zinger, W.: Multiport rectangular TE10 to circular TE01 mode transducer having pyrimidal shaped transducing means, December 9 1986, US Patent 4,628,287.Google Scholar
[9] Davies, J.; Davies, O.J. and Saad, S.S.: Computer design of efficient TE01 circular waveguide transducers, in 4th European Microwave Conf., 1974, September 1974, 382–384.CrossRefGoogle Scholar
[10] Yu, C.-F.; Chang, T.-H.: High-performance circular TE01-mode converter. IEEE Trans. Microw. Theory Tech., 53 (12) (2005), 3794–3798.Google Scholar
[11] Schulz, C.; Rolfes, I. and Will, B.: A broadband circular TE11- to TE01-mode converter using stepped waveguide technique, in 44th European Microwave Conf. (EuMC), 2014, October 2014.Google Scholar
[12] Daniel, E. et al. : Packaging of microwave integrated circuits operating beyond 100 GHz, in 2002, in Proc. IEEE Lester Eastman Conf. on High Performance Devices, August 2002, 374–383.Google Scholar
[13] Bruneau, P.; Janzen, H. and Ward, J.: Machining of Terahertz split-block waveguides with micrometer precision, in Infrared, Millimeter and Terahertz Waves, 2008., in 33rd Int. Conf. on IRMMW-THz 2008, September 2008, 1–2.CrossRefGoogle Scholar
[14] Pozar, D.: Microwave Engineering, New York: John Wiley & Sons, Inc., 2004.Google Scholar