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Synthesis of microwave resonators
Šeděnka, Vladimír ; Dědková, Jarmila (referee) ; Raida, Zbyněk (advisor)
The thesis deals with microwave resonators synthesis in Matlab environment. Due to the multi-objective optimization, the shape of the resonátor is subsequently changed to fit requested frequency properties. Particle swarm optimization and frequency domain finite element method are used. Accuracy of the different number of elements was tested. Values of several optimization parameters were balanced to reach the maximal efficiency of the optimization.
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Mobile Android Application for Electromagnetics
Michálek, Jakub ; Šeděnka, Vladimír (referee) ; Kadlec, Petr (advisor)
The objectives of the thesis are to introduce computing platform for Android mobile devices and to create an application in Android Studio development environment. The aim of the application is to present particular electromagnetic phenomena to a user, allow modification of their parameters and subsequently observe variations in their behavior. First part of the bachelor thesis presents introduction to Android operating system, its architecture, version and basic components. Tools required for building applications in Android Studio are described in a second part. Following section is devoted to characterization of electromagnetic phenomena which will be visualized in an actual application later on. Final section of the work delves into design and implementation of the application from the programming point of view.
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Numerical solutions of EMC problems of small airplanes
Šeděnka, Vladimír ; Dědková, Jarmila (referee) ; Mazánek, Miloš (referee) ; Raida, Zbyněk (advisor)
Disertace popisuje současné problémy v certifikaci malých letadel, které by se měly v budoucnu řešit numerickým modelováním. Tento postup má zefektivnit návrh a zlevnit certifikaci letadel. Práce je úzce spjata s projektem HIRF-SE, který se problematikou certifikace letadel numerickými metodami zabývá. Podstatná část práce je věnována popisu dvou modulů pro platformu HIRF-SE: řešič BUTFE založený na metodě konečných prvků v časové oblasti a budicí nástroj BUTFE_EXC. Práce popisuje řešení pohlcujících okrajových podmínek, modelování disperzních a anizotropních materiálů a aproximaci tenkých drátů. Speciální pozornost je věnována řešení aproximace tenkých drátů s ostrými ohyby, jejíž současná formulace způsobuje překryvy mezi jednotlivými segmenty drátu.
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Antenna catalogue for Matlab toolbox
Maluš, Miroslav ; Šeděnka, Vladimír (referee) ; Kadlec, Petr (advisor)
This Bachelor thesis is about creation of an antenna catalog for a toolbox in the MATLAB. Basic parameterized mathematical description is created for selected basic types of wired and microstrip antennas. A function visualizing antenna parameters is created for each antenna. To enter individual parameters for the selected antenna, there is a graphical user interface. To enter individual parameters for the selected antenna, there is a graphical user interface. This thesis also offers a comparative study with competitors and shows the possibilities of the other tools.
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Antenna catalogue for Matlab toolbox
Maluš, Miroslav ; Šeděnka, Vladimír (referee) ; Kadlec, Petr (advisor)
This Bachelor thesis is about creation of an antenna catalog for a toolbox in the MATLAB. Basic parameterized mathematical description is created for selected basic types of wired and microstrip antennas. A function visualizing antenna parameters is created for each antenna. To enter individual parameters for the selected antenna, there is a graphical user interface. To enter individual parameters for the selected antenna, there is a graphical user interface. This thesis also offers a comparative study with competitors and shows the possibilities of the other tools.
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|
|
Mobile Android Application for Electromagnetics
Michálek, Jakub ; Šeděnka, Vladimír (referee) ; Kadlec, Petr (advisor)
The objectives of the thesis are to introduce computing platform for Android mobile devices and to create an application in Android Studio development environment. The aim of the application is to present particular electromagnetic phenomena to a user, allow modification of their parameters and subsequently observe variations in their behavior. First part of the bachelor thesis presents introduction to Android operating system, its architecture, version and basic components. Tools required for building applications in Android Studio are described in a second part. Following section is devoted to characterization of electromagnetic phenomena which will be visualized in an actual application later on. Final section of the work delves into design and implementation of the application from the programming point of view.
|
|
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Numerical solutions of EMC problems of small airplanes
Šeděnka, Vladimír ; Dědková, Jarmila (referee) ; Mazánek, Miloš (referee) ; Raida, Zbyněk (advisor)
Disertace popisuje současné problémy v certifikaci malých letadel, které by se měly v budoucnu řešit numerickým modelováním. Tento postup má zefektivnit návrh a zlevnit certifikaci letadel. Práce je úzce spjata s projektem HIRF-SE, který se problematikou certifikace letadel numerickými metodami zabývá. Podstatná část práce je věnována popisu dvou modulů pro platformu HIRF-SE: řešič BUTFE založený na metodě konečných prvků v časové oblasti a budicí nástroj BUTFE_EXC. Práce popisuje řešení pohlcujících okrajových podmínek, modelování disperzních a anizotropních materiálů a aproximaci tenkých drátů. Speciální pozornost je věnována řešení aproximace tenkých drátů s ostrými ohyby, jejíž současná formulace způsobuje překryvy mezi jednotlivými segmenty drátu.
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Synthesis of microwave resonators
Šeděnka, Vladimír ; Dědková, Jarmila (referee) ; Raida, Zbyněk (advisor)
The thesis deals with microwave resonators synthesis in Matlab environment. Due to the multi-objective optimization, the shape of the resonátor is subsequently changed to fit requested frequency properties. Particle swarm optimization and frequency domain finite element method are used. Accuracy of the different number of elements was tested. Values of several optimization parameters were balanced to reach the maximal efficiency of the optimization.
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