Mode matching technique for computation of resonance frequencies of composite metal-dielectric resonator

Authors

DOI:

https://doi.org/10.20535/RADAP.2013.55.24-33

Keywords:

dielectric resonator, mode matching technique, resonant frequency tuning, micromechanical-tuned devices

Abstract

The composite metal-dielectric resonator (CMDR) design is presented. An eigenproblem solution of the CMDR by mode matching technique is discussed. The problem is reduced to a set of homogeneous integral Fredholm equations of the first kind. The system is solved using Galerkin method. The technique is more efficient than FEM in terms of computational resources due to low rank of the system. It is shown that changing the air gap width between the dielectric and the metal plate provides the resonant frequency tuning. It is also shown that in order to achieve efficient electromechanical tuning of the CMDR resonant frequency, the resonant modes with a dominant electrical field component perpendicular to the air gap between the dielectric and the metal plate have to be selected. The tuning efficiency grows with the DR radius to thickness ratio and increasing permittivity. The CMDR can be used for creating compact high-Q micromechanical-tuned radiofrequency devices with wide tuning range.

Author Biographies

K. G. Savin, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

Postgraduate student of Physical and Biomedical Electronics Department

Yu. V. Prokopenko, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

Cand. of Sci(Techn), Assoc. Prof. of Physical and Biomedical Electronics Department

Yu. M. Poplavko, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

Doc. of Sci. (Physics), Prof. of Microelectronics Department

References

Литература

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References

Mansour R.R. (2009) High-Q tunable dielectric resonator filters. IEEE Microwave Magazine, Vol. 10, No. 6, pp.84–98. doi: 10.1109/MMM.2009.933591

Poplavko Yu. M., Prokopenko Yu.V., Molchanov V.I., Dogan (2001) A Frequency-tunable microwave dielectric resonator. IEEE Trans. Microw. Theory Tech., Vol. 49, No 6, pp. 1020-1026. doi: 10.1109/22.925485

Ruda N. A., Prokopenko Y. V., Poplavko Y. M. (2012) Solution of scattering problem on dielectric wedgeplaced between metal plates by boundary element method. Vìsn. NTUU KPÌ, Ser. Radìoteh. radìoaparatobuduv., No. 48, pp. 13-22. Available at: http://radap.kpi.ua/index.php/radiotechnique/article/view/97

Kobayashi Y., Tanaka S. (1980) Resonant modes of a dielectric rod resonator short-circuited at both ends by parallel conducting plates. IEEE Trans. Microw. Theory Tech., Vol. MTT-28, No 10, pp. 1077-1085. doi: 10.1109/TMTT.1980.1130228

Brooky G.N., Kharadly M. Z. (1977) Field behaviour near anisotropic and multidielec-tric edges. IEEE Trans. Antennas and Propagation, Vol. AP-25, No 4, pp.571-575. doi: 10.1109/TAP.1977.1141646

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Pratsiuk B., Prokopenko Yu., Poplavko Yu. (2010) Tunable filters based on metal-dielectric resonators. Microwave, Radar and Wireless Communications (MIKON), 2010 18th International Conference., pp. 309-311.

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Published

2013-12-09

How to Cite

Савин, К., Прокопенко, Ю. and Поплавко, Ю. (2013) “Mode matching technique for computation of resonance frequencies of composite metal-dielectric resonator”, Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, 0(55), pp. 24-33. doi: 10.20535/RADAP.2013.55.24-33.

Issue

No. 55 (2013)

Section

Electrodynamics. Microwave devices. Antennas

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