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Power Amplifier for L Band
Galajda, Jan ; Zatloukal, Petr (referee) ; Urbanec, Tomáš (advisor)
This work is focused on design of L band power amplifier. First, the design of the amplifier is substantiated by necessary theoretical basics of RF power amplifiers. Then, after comparsion of availible RF power amplifiers concepts, the doherty power amplifier is chosen as a suitable type. Design of the amplifier is focused on the linearity and efficiency. AWR design program is used for simulation of the amplifier. Amplifier is then realized and parameters are measured. Measured results are then discussed and evaluated. This work proposes design of the linear doherty amplifier for modern communications systems.
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Advanced Oracle Database Monitoring Tool
Mikulka, David ; Chmelař, Petr (referee) ; Kolář, Dušan (advisor)
This master's thesis describes possibilities of Oracle Database 10g and 11g monitoring. It let the reader know about practical tools for monitoring and describes the database's internal catalogs preserving statistics and the information about running database instances within history. Next, it describes design of an Oracle database monitoring tool, describtion of its implementation and at the end its evaluation and comparison with other similar applications.
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Power Amplifier for L Band
Eliáš, Martin ; Pešek, Kamil (referee) ; Urbanec, Tomáš (advisor)
The aim of this thesis is to design a power amplifier in L-band. This thesis describes the high frequency transistor technologies. Furthermore, the communication standard of the amplified signal is described along with the output signal requirements. The design of the amplifier includes modelling of the individual amplifier stages using nonlinear models in the AWR program. The design of the stabilization and matching circuits is included, along with a circuit to guarantee the correct turn-on and turn-off sequence. The designs are converted to printed circuit board and fabricated. For the 2nd and 3rd amplifier stages, engineering drawings of the heat sinks are drawn and used to fabricate them. After implementation, the designs are measured and the measured parameters evaluated.
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Power Amplifier for L Band
Galajda, Jan ; Zatloukal, Petr (referee) ; Urbanec, Tomáš (advisor)
This work is focused on design of L band power amplifier. First, the design of the amplifier is substantiated by necessary theoretical basics of RF power amplifiers. Then, after comparsion of availible RF power amplifiers concepts, the doherty power amplifier is chosen as a suitable type. Design of the amplifier is focused on the linearity and efficiency. AWR design program is used for simulation of the amplifier. Amplifier is then realized and parameters are measured. Measured results are then discussed and evaluated. This work proposes design of the linear doherty amplifier for modern communications systems.
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|
|
Advanced Oracle Database Monitoring Tool
Mikulka, David ; Chmelař, Petr (referee) ; Kolář, Dušan (advisor)
This master's thesis describes possibilities of Oracle Database 10g and 11g monitoring. It let the reader know about practical tools for monitoring and describes the database's internal catalogs preserving statistics and the information about running database instances within history. Next, it describes design of an Oracle database monitoring tool, describtion of its implementation and at the end its evaluation and comparison with other similar applications.
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