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The computer modeling of band-pass filters on circular four-ridge waveguides

Keywords:

D.S. Gubsky – Ph. D. (Phys.-Math.), Associate Professor, Department of Applied Electrodynamics and Computer Simulation, Southern Federal University (Rostov-on-Don). E-mail: ds@sfedu.ru
V.V. Zemlyakov – Ph. D. (Phys.-Math.), Associate Professor, Department of Applied Electrodynamics and Computer Simulation, Southern Federal University (Rostov-on-Don). E-mail: vvzemlyakov@sfedu.ru
G.P. Sinyavsky – Dr. Sc. (Phys.-Math.), Professor, Head of Department of Applied Electrodynamics and Computer Simulation, Southern Federal University (Rostov-on-Don). E-mail: sinyavsky@sfedu.ru


The circular wave guiding structures with various irregularities and layered dielectric filling set a class of devices which are widely used in the microwave equipment. The properties of various irregularities including selective properties allow using them as basic elements at development of various devices of microwave range. In this work the general approach to synthesis of the waveguide filters is considered. The way of receiving initial approach of filter model which can be used for further characteristics optimization is described. The problem of design of band-pass filters on circular waveguides is solved. The four-ridge circular waveguides are used as resonators and evanescent circular waveguides – as impedance. For increase of good quality and expansion of a filter stop-band it is offered to use circular dielectric inserts in a space between ridges of resonators. The results of modeling of filters on three resonators are presented.
References:

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  5. Gubsky A.D., Gubsky D.S., Lyapin V.P., Sinyavsky G.P. The Investigation of Circular Waveguides with Radial Metal Ridges of Complex Profile. // Electromagnetic Waves and Electronic Systems, 2006. vol. 11, No 2−3. pp. 74−78
  6. Gubsky D.S., Sinyavsky G.P. The development of circular waveguide structures for microwave devices taking into account the electromagnetic field singularity // Physical Bases of Instrumentation, т. 1, 2012, vol. 1, No 1, pp. 51−75.
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  8. Nanan J.‑C., Tao J.‑W., Baudrand H., Theron B. A Two-Step Synthesis of Broadband Ridged Waveguide Bandpass Filter with Improved Performances. // IEEE Trans. on Microwave Theory and Techniques, 1991, vol. 39, N 12, p. 2192−2197.
  9. Shen T., Zaki K.A. Length Reduction of Evanescent-Mode Ridge Waveguide Bandpass Filters. // Progress in Electromagnetic Research, 2003, PIER 40, p. 71−90.
  10. Zemlyakov V.V. The Band-pass SIW-filter Based on L‑ridged Rectangular Waveguide. Progress In Electromagnetics Research Symposium (PIERS‑2013), Stockholm, 2013, pp. 605−609.
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  12. Gubsky D.S., Zemlyakov V.V., Noykin Yu.M, Siniavsky G.P. The filters on circular waveguides design. // Electromagnetic Waves and Electronic Systems, 2013. vol. 18, No 9. pp. 42−46.
  13. Gubsky D.S., Zemlyakov V.V., Mamay I.V., Sinyavsky G.P. Computer Simulation of the Devices for Virtual Laboratory Works. // Journal of Computer and Information Technologies, 2014, No 3, pp. 38−42.
  14. Gubsky D.S., Mamay I.V., Zemlyakov V.V. Virtual Laboratory for Microwave Devices. // Progress In Electromagnetics Research Symposium (PIERS‑2013), Stockholm, 2013, pp. 527−530.
  15. Gubsky D.S., Zemlyakov V.V., Mamay I.V. The Modern Approach to Virtual Laboratory Workshop. // International Journal of Online Engineering (iJOE), V. 10, № 2, 2014, pp. 56−59.

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