Investigation of the electrodynamic retard devices using parallel computer systems

Raimondas Pomarnacki

Doctoral dissertation

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The disertation investigates the issues of analysis and synthesis of  the microwave devices using parallel computer systems. The main objects of research include microstrip multicunductor lines (MMCL) and meander microstrip delay lines (MMDL). These objects are important to microwave devices, because they let to transmit, sinchronize and delay signals. They fast analysis and synyhesis makes faster device developing. The primary purpose of this dissertation is to create techniqes and algorithms to accelerate analysis and synthesis of the microwave devices.

The dissertation consist of an introduction, five chapters, conclusions, references and two appendixes.

The introduction reveals the investigated problem, importance of the thesis and the object of research, describes the purpose and tasks of the paper, research methodology, scientific novelty, the practical significance of results examined in the paper and defended statements. The introduction ends in presenting the author‘s publications on the subject of the defended dissertation.

Chapter 1 revised used literature. Here issues of the MMCL and MMDL analysis and synthesis are described, also noted parallel computing systems and their use for the solving of the electromagnetic tasks. At the end of the chapter, conclusions are drawn and the tasks for the dissertation are reconsidered.

At chapter 2 two MMCL models of the limited sizes both based on numerical techniques are proposed. Reseach results of the proposed models which are adequate to electromagnetic processes in the MMCL of the limited sizes are presented also.

Chapter 3 investigates MMCL analysis and synthesis. Here parallel algorithms of the MMCL analysis and synthesis are presented, reseach results of this algorithms are shown also. Purposed algorithms accelerates calculations of electrical or search construction parameters of MMCL.

Chapter 4 investigets dispersion characteristic of MMDL. To calculate dispersion characteristic of the MMDL the dispersion equation should be solved. To search solution of the dispersijon equation four algorithms are purposed, which speed up of the search. The parallel technique to calculate dispersion characteristic of the MMDL is presented also.

Last Chapter 5 investigates several MMDL parallel synthesis algorithms. Parallel algorithms were created using Monte Carlo and coherently approch methods.

The main dissertation results were published in 5 scientific papers, of which 3 papers are published in peer-reviewed scientific journals. Also results were presented in 9 scientific conferences in the Lithuania and abroad. 

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160×230 mm
150 p.
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