Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2020. No. 11

Full text in Russian (pdf)

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DOI  https://doi.org/10.30898/1684-1719.2020.11.1

UDC 621.372.826


Simulation of microwave dielectric resonator by  plane electromagnetic wave


L. V. Alekseychik, A. A. Kurushin

 Moscow Power Engineering Institute (National University), Krasnokazarmennaja, 14, Moscow 111250, Russia

The paper is received on May 27, 2020, after corerction - on October 26, 2020


Abstract. The simulation of the problem of excitation of cylindrical (disk) dielectric resonator (DR) by the electromagnetic field of an incident plane wave in free space is carried out.  DR is made from highly permeable dielectric with low losses. The aim of the work was to obtain the characteristics of the diffraction process of a plane electromagnetic wave upon excitation of forced oscillations of the DR on the lowest magnetic type of oscillation, as well as to clarify the structure of the electromagnetic field inside and in the vicinity of the DR and its characteristics as a radiating antenna element for using the obtained data when designing an antenna array. The studying the DR characteristics is solved in order to use in the design of the antenna array, in which the DR is used as a radiating element. As a result of numerical modeling of the task using the CST Microwave Studio, we obtained patterns of the distribution of the vectors of the resulting field upon diffraction of a plane electromagnetic wave by cylindrical DR and its frequency characteristics (AFC) in the L-range.  Peculiarities of the electric and magnetic components of the field inside and in the vicinity of the DR sample were revealed. Using the AFC curve of the DR and the temporal data of the attenuation rate of the DR excitation process, the values of its effective (loaded) Q factor, intrinsic Q factor, and Q factor of coupling the DR with free space were obtained.  The radiation patterns in the form of radar cross section (RCS) are presented, which demonstrate the properties of DR as antenna elements in the microwave range.

 Key words: dielectric resonators; simulation of the diffraction; plane electromagnetic wave; CST Microwave Studio.


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For citation:

Alexeychik L.V., Kurushin A.A. Simulation of microwave dielectric resonator by  plane electromagnetic wave. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No.11. https://doi.org/10.30898/1684-1719.2020.11.1 (In Russian)