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Reconfigurable patch antenna
Zlatníček, Radek ; Polívka, Milan (referee) ; Raida, Zbyněk (advisor)
The master's thesis deals with the design and implementation of a reconfigurable patch antenna. The antenna is fed by a microstrip transmission line. To the microstrip feeder, tuning stubs are connected. Each stub matches the input impedance of the antenna to 50 ? for different operation frequencies. Stubs can be individually connected to the feeder by PIN diodes; operation frequency of the antenna can be switched that way. In the project, the antenna is initially designed for antenna substrate RO3006. Then, the design will be converted to the substrate ARLON AD600 selected for the realization. In the project, modifications of stubs will be proposed to properly connect the PIN diodes. Functionality of the designed antenna will be verified by modeling in Ansoft Designer. The last part will be dealt with implementation of the antenna and the experimental measurement of their properties.
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Tunable active frequency filter
Zlatníček, Radek ; Murina, Milan (referee) ; Sedláček, Jiří (advisor)
The aim of project is the design of active filter of bandreject type with tunnable resonant frequency and q- factor. Semestral project dealůs with design of circuit diagram and choosing of proper operational amplifier.Here is also discussed possibility of tunnig using digitaly controlled potentiometers.
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Tunable active frequency filter
Zlatníček, Radek ; Murina, Milan (referee) ; Sedláček, Jiří (advisor)
The aim of project is the design of active filter of bandreject type with tunnable resonant frequency and q- factor. Semestral project dealůs with design of circuit diagram and choosing of proper operational amplifier.Here is also discussed possibility of tunnig using digitaly controlled potentiometers.
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Reconfigurable patch antenna
Zlatníček, Radek ; Polívka, Milan (referee) ; Raida, Zbyněk (advisor)
The master's thesis deals with the design and implementation of a reconfigurable patch antenna. The antenna is fed by a microstrip transmission line. To the microstrip feeder, tuning stubs are connected. Each stub matches the input impedance of the antenna to 50 ? for different operation frequencies. Stubs can be individually connected to the feeder by PIN diodes; operation frequency of the antenna can be switched that way. In the project, the antenna is initially designed for antenna substrate RO3006. Then, the design will be converted to the substrate ARLON AD600 selected for the realization. In the project, modifications of stubs will be proposed to properly connect the PIN diodes. Functionality of the designed antenna will be verified by modeling in Ansoft Designer. The last part will be dealt with implementation of the antenna and the experimental measurement of their properties.
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