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Near field of the dipole antennas
Beran, Vlastimil ; Tkadlec, Roman (referee) ; Nováček, Zdeněk (advisor)
The thesis describes the radiation of dipole antennas in near field area. More methods for evaluation of spatial dipole field arrangement are compared. The work target for practical use is to create software for simulation of near field values placed in planar or cylindrical observation plane. The computer programme is applicable to single dipole or dipole array. The limits for human body exposition of non-ionizing radiation are here implemented for compliance purpose in hygienic evaluations. The simulated results of field distribution are possible to display as graphs or save to data file. The results of own calculation are compared with results obtained by some commercial software as well by measurement of field components under model conditions.
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Technologies and methods for plane surface finishing
Hanzlík, Václav ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
This thesis deals with technologies of finishing plane surfaces, describes individual methods and results on quality of surface including their advantages and disadvantages of using in industry. The thesis contains overview of both new and old technologies as well as mostly used conventional and unconventional methods of finishing plane surfaces.
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Roughing milling of plane and form surface with CNC machines.
Indra, Jaroslav ; Zouhar, Jan (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis deals with roughing milling. Beginning of this thesis is concerned with common description milling and example work surface. Next part refers about necessary information for selection of roughing milling tool and its toolholder. Next chapter deals with basic information about CNC milling machines. Last part is devoted selection of concrete configuration machine, tool and its toolholder for roughing milling of plane and form surface with CNC machines.
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Radiation of antenna array in near-field area
Hermany, Jiří ; Láčík, Jaroslav (referee) ; Nováček, Zdeněk (advisor)
The aim of my diploma thesis is to analyze the antenna array radiation and to produce the antenna array radiation computation program. The program should display the electric and magnetic intensity and radiation power density distribution over the planar or cylindrical surface in the near-field area. The antenna array analyzed in this paper consists of a number of elementary dipoles placed in a row with a reflector which represents the conductive board situated in parallel to the row of dipoles. The demonstration program was built in MATLAB and allows computing and displaying the computed values components of antenna array radiation on the planar or the cylindrical surface. The program also allows saving computed values, saving displayed graphs, or saving the adjusted parameters of antenna array. The created program can be used for the presentation of the antenna array radiation in a school laboratory or for the graphical representation when a new antenna is designed.
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Near field of the dipole antennas
Beran, Vlastimil ; Tkadlec, Roman (referee) ; Nováček, Zdeněk (advisor)
The thesis describes the radiation of dipole antennas in near field area. More methods for evaluation of spatial dipole field arrangement are compared. The work target for practical use is to create software for simulation of near field values placed in planar or cylindrical observation plane. The computer programme is applicable to single dipole or dipole array. The limits for human body exposition of non-ionizing radiation are here implemented for compliance purpose in hygienic evaluations. The simulated results of field distribution are possible to display as graphs or save to data file. The results of own calculation are compared with results obtained by some commercial software as well by measurement of field components under model conditions.
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|
|
Radiation of antenna array in near-field area
Hermany, Jiří ; Láčík, Jaroslav (referee) ; Nováček, Zdeněk (advisor)
The aim of my diploma thesis is to analyze the antenna array radiation and to produce the antenna array radiation computation program. The program should display the electric and magnetic intensity and radiation power density distribution over the planar or cylindrical surface in the near-field area. The antenna array analyzed in this paper consists of a number of elementary dipoles placed in a row with a reflector which represents the conductive board situated in parallel to the row of dipoles. The demonstration program was built in MATLAB and allows computing and displaying the computed values components of antenna array radiation on the planar or the cylindrical surface. The program also allows saving computed values, saving displayed graphs, or saving the adjusted parameters of antenna array. The created program can be used for the presentation of the antenna array radiation in a school laboratory or for the graphical representation when a new antenna is designed.
|
|
|
Technologies and methods for plane surface finishing
Hanzlík, Václav ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
This thesis deals with technologies of finishing plane surfaces, describes individual methods and results on quality of surface including their advantages and disadvantages of using in industry. The thesis contains overview of both new and old technologies as well as mostly used conventional and unconventional methods of finishing plane surfaces.
|
|
| |
|
|
Roughing milling of plane and form surface with CNC machines.
Indra, Jaroslav ; Zouhar, Jan (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis deals with roughing milling. Beginning of this thesis is concerned with common description milling and example work surface. Next part refers about necessary information for selection of roughing milling tool and its toolholder. Next chapter deals with basic information about CNC milling machines. Last part is devoted selection of concrete configuration machine, tool and its toolholder for roughing milling of plane and form surface with CNC machines.
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