Research of scattering matrix method convergence in the computation problem of quasi-h mode microwave filters

Authors

  • Довлет Байрамович Мамедов National Technical University "Kharkiv Polytechnic Institute" 21 Frunze str., Kharkov, Ukraine, 61002, Ukraine https://orcid.org/0000-0002-8461-7192
  • Александр Георгиевич Ющенко National Technical University "Kharkiv Polytechnic Institute" 21 Frunze str., Kharkov, Ukraine, 61002, Ukraine https://orcid.org/0000-0002-0078-3450

DOI:

https://doi.org/10.15587/1729-4061.2015.47992

Keywords:

microwave filter, waveguide-dielectric resonators, generalized scattering matrix method, intelligent CAD system, multimode model

Abstract

Based on the methods of partial areas and a generalized scattering matrix, an electrodynamic model of the microwave filter design with waveguide-dielectric resonators, partially filling rectangular waveguide by width was constructed. The model allows to consider a countable number of modes in all the problem geometry areas. A numerical algorithm based on the model obtained was implemented and the influence of accounting higher modes on the convergence of the computation algorithm of the amplitude-frequency characteristics of one-, three- and five-tier microwave filters was investigated. The research revealed that at insufficient consideration of harmonics in the area of below-cutoff waveguide, the calculated dependences significantly differ from those to which the experimentally verified algorithm converges, namely, frequency shift and irregularity change of the amplitude-frequency characteristic are observed. The resulting multimode model allows to reduce the error of the intelligent CAD system of the multi-tier filter designs. 

Author Biographies

Довлет Байрамович Мамедов, National Technical University "Kharkiv Polytechnic Institute" 21 Frunze str., Kharkov, Ukraine, 61002

Posgraduate Student

Department “Systems of Information”

Александр Георгиевич Ющенко, National Technical University "Kharkiv Polytechnic Institute" 21 Frunze str., Kharkov, Ukraine, 61002

Candidate of Physical and Mathematical Sciences, Professor

Department “Systems of Information”

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Published

2015-08-21

How to Cite

Мамедов, Д. Б., & Ющенко, А. Г. (2015). Research of scattering matrix method convergence in the computation problem of quasi-h mode microwave filters. Eastern-European Journal of Enterprise Technologies, 4(9(76), 34–38. https://doi.org/10.15587/1729-4061.2015.47992

Issue

Vol. 4 No. 9(76) (2015): Information and controlling system

Section

Information and controlling system

License

Copyright (c) 2015 Александр Георгиевич Ющенко, Довлет Байрамович Мамедов

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