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Antenna array to determine positions of airplanes
Zelenka, Pavel ; Pokorný, Michal (referee) ; Raida, Zbyněk (advisor)
The project is aimed to design an antenna array for an aircraft positioning system at an airport. The system operates at frequencies 1030 MHz and 1090 MHz. The antenna is also used by the DME/TACAN system operating in frequency range from 1025 MHz to 1150 MHz. The required impedance bandwidth of the antenna array is 125 MHz, i.ee from 1025 MHz to 1150 MHz. The theoretical part of the thesis analyses properties of different patch antennas and discusses the possibility of extending the impedance bandwidth. The practical part is focused on the development of the numerical model of the broadband stacked patch antennas. In addition, properties of the 3-element and 4-element antenna array are compared. At the end, results of the thesis are summarized.
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Rectangular patch atenna for the frequency band 60 GHz
Hubka, Patrik ; Hertl, Ivo (referee) ; Hebelka, Vladimír (advisor)
The goal of this thesis is design and build rectangular patch antenna for 60 GHz band, matched to 50 Ohms. First section described general knowledges about microstrips antennas and technologies for 60 GHz band. Second section introduced rectangular patch antenna feeded by miscrostrip line matched by quarter wave transformer on CuClad 217 substrate. Third section introduced two structural modification of rectangular patch antenna and measurements of return loss |S11|.
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Antenna array to determine positions of airplanes
Zelenka, Pavel ; Pokorný, Michal (referee) ; Raida, Zbyněk (advisor)
The project is aimed to design an antenna array for an aircraft positioning system at an airport. The system operates at frequencies 1030 MHz and 1090 MHz. The antenna is also used by the DME/TACAN system operating in frequency range from 1025 MHz to 1150 MHz. The required impedance bandwidth of the antenna array is 125 MHz, i.ee from 1025 MHz to 1150 MHz. The theoretical part of the thesis analyses properties of different patch antennas and discusses the possibility of extending the impedance bandwidth. The practical part is focused on the development of the numerical model of the broadband stacked patch antennas. In addition, properties of the 3-element and 4-element antenna array are compared. At the end, results of the thesis are summarized.
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|
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Rectangular patch atenna for the frequency band 60 GHz
Hubka, Patrik ; Hertl, Ivo (referee) ; Hebelka, Vladimír (advisor)
The goal of this thesis is design and build rectangular patch antenna for 60 GHz band, matched to 50 Ohms. First section described general knowledges about microstrips antennas and technologies for 60 GHz band. Second section introduced rectangular patch antenna feeded by miscrostrip line matched by quarter wave transformer on CuClad 217 substrate. Third section introduced two structural modification of rectangular patch antenna and measurements of return loss |S11|.
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