National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
3D printed waveguide sets for complex permittivity measurement of materials
Kašpar, Tomáš ; Cupal, Miroslav (referee) ; Láčík, Jaroslav (advisor)
This bachelor's thesis is focused on the measuring complex permitivity of materials. In the first part, there is a conclusion of theoretical information including the problematics of transmission/reflection method. Further on, the work is focused on a programming of an algorithm and designing several waveguide sets. Second part is dedicated to realization of these sets and measurements. The output is 3D printed waveguide measuring sets.
Complex permittivity measurement of materials at microwave frequencies
Polák, Radek ; Hertl, Ivo (referee) ; Láčík, Jaroslav (advisor)
This article describes some methods of measuring complex permitivity in milimeter – wave band, their characteristics, anvatages and disadvantages. Discused are here the reasons for their use in the construction of work place. On the basis these reasons is chosen the best method for practical measurement. That is cavity resonant method. Article contain description of designed measurement system. Whitch is verified by computer simulating of developed model in HFSS Ansoft. Text contain also result of simulations and execute computing of comlex permittivity and tangent loss. In Conclusion is desribed results of practical permittivity measure with realized measurement system.
3D printed waveguide sets for complex permittivity measurement of materials
Kašpar, Tomáš ; Cupal, Miroslav (referee) ; Láčík, Jaroslav (advisor)
This bachelor's thesis is focused on the measuring complex permitivity of materials. In the first part, there is a conclusion of theoretical information including the problematics of transmission/reflection method. Further on, the work is focused on a programming of an algorithm and designing several waveguide sets. Second part is dedicated to realization of these sets and measurements. The output is 3D printed waveguide measuring sets.
Complex permittivity measurement of materials at microwave frequencies
Polák, Radek ; Hertl, Ivo (referee) ; Láčík, Jaroslav (advisor)
This article describes some methods of measuring complex permitivity in milimeter – wave band, their characteristics, anvatages and disadvantages. Discused are here the reasons for their use in the construction of work place. On the basis these reasons is chosen the best method for practical measurement. That is cavity resonant method. Article contain description of designed measurement system. Whitch is verified by computer simulating of developed model in HFSS Ansoft. Text contain also result of simulations and execute computing of comlex permittivity and tangent loss. In Conclusion is desribed results of practical permittivity measure with realized measurement system.

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