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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Modeling of Microwave Semiconductor Structures
 Pokorný, Michal ; Mazánek, Miloš (oponent) ; Voves, Jan (oponent) ; Raida, Zbyněk (vedoucí práce)
This thesis deals with the modeling of the microwave semiconductor structures. Increasing working frequencies of the new communication systems increase the demands on active devices and transmission lines, usually implemented in the monolithic integrated form. Active transmission lines with distributed parameters seem to be promising solution as an amplifying element and also as an active feeding of microwave antennas. The first part presents the implementation of the thermodynamic formulation of the drift-diffusion scheme for the numerical simulation of transport processes in semiconductor structures using the commercial software COMSOL Multiphysics. Following section is devoted to the implementation of the Gunn effect in the macroscopic approximation, and the development of the simulation procedure for the analysis of structures using this phenomenon. The last part is devoted to the design and analysis of active transmission lines and their improvement.
Úplný záznam
Modeling of Microwave Semiconductor Structures
 Pokorný, Michal ; Mazánek, Miloš (oponent) ; Voves, Jan (oponent) ; Raida, Zbyněk (vedoucí práce)
This thesis deals with the modeling of the microwave semiconductor structures. Increasing working frequencies of the new communication systems increase the demands on active devices and transmission lines, usually implemented in the monolithic integrated form. Active transmission lines with distributed parameters seem to be promising solution as an amplifying element and also as an active feeding of microwave antennas. The first part presents the implementation of the thermodynamic formulation of the drift-diffusion scheme for the numerical simulation of transport processes in semiconductor structures using the commercial software COMSOL Multiphysics. Following section is devoted to the implementation of the Gunn effect in the macroscopic approximation, and the development of the simulation procedure for the analysis of structures using this phenomenon. The last part is devoted to the design and analysis of active transmission lines and their improvement.
Úplný záznam

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