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Design and construction of dual Crawford chamber
Haloda, Jiří ; Hadinec, Michal (referee) ; Szabó, Zoltán (advisor)
Dual Crawford cell is also known as dual TEM-cell (Transversal Electromagnetic Mode cell). It is device used for electromagnetic compatibility measurement (emission and immunity) and for biological application. This papers is focused on usage and design dual Crawford chamber and measuring of their electromagnetic compatibility. There are shown their advantages and disadvantages. This type of cell is simple for design and for the construction too. Construction of dual Crawford chamber with characteristic impedance of 50? for measure in 1GHz range was calculated.
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Wideband Sinuous Antenna with Dual Polarization
Haloda, Jiří ; Tkadlec, Roman (referee) ; Pítra, Kamil (advisor)
This paper deals with sinuous broadband antenna, witch operating frequency 1 to 6 GHz. The antenna parameters, which change their physical dimension were shown in this paper. Antenna structure is planar and feeding network line have to be planar too. There are different ways to describe and construct from unbalanced to balanced line by baluns. There are also design impedance transform to match antenna in this paper. The simulation and measured results are showen the antenna has wideband character.
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Design and construction of dual Crawford chamber
Haloda, Jiří ; Hadinec, Michal (referee) ; Szabó, Zoltán (advisor)
Dual Crawford cell is also known as dual TEM-cell (Transversal Electromagnetic Mode cell). It is device used for electromagnetic compatibility measurement (emission and immunity) and for biological application. This papers is focused on usage and design dual Crawford chamber and measuring of their electromagnetic compatibility. There are shown their advantages and disadvantages. This type of cell is simple for design and for the construction too. Construction of dual Crawford chamber with characteristic impedance of 50? for measure in 1GHz range was calculated.
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|
|
Wideband Sinuous Antenna with Dual Polarization
Haloda, Jiří ; Tkadlec, Roman (referee) ; Pítra, Kamil (advisor)
This paper deals with sinuous broadband antenna, witch operating frequency 1 to 6 GHz. The antenna parameters, which change their physical dimension were shown in this paper. Antenna structure is planar and feeding network line have to be planar too. There are different ways to describe and construct from unbalanced to balanced line by baluns. There are also design impedance transform to match antenna in this paper. The simulation and measured results are showen the antenna has wideband character.
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