National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.01 seconds. 
Basic measurement on the Vector network analyzer
Lapčík, Josef ; Urbanec, Tomáš (referee) ; Dřínovský, Jiří (advisor)
This bachelor project concerns with a vector network analyzer for measurement of reflection coefficient, carry coefficient and scattering coefficients. Main parts of vector network analyzer and principle of analyzer with relation to possible areas of error correction are described. Possibilities of using modern vector network analyzer are shown in relation to their conception. Second part of the project deals with design of filters and directional coupler designed for measuring on analyzer. Designs of lowpass filter, bandpass filter and branch-line directional coupler are describe in details. Results of filters analysis from program Ansoft Designer and results of measurement on vector network analyzer are appended. The last part of project focus on creation of application for automatic measurement on network analyzer in program interface Agilent VEE.
Construction of an impedance analyzer
Slinták, Vlastimil ; Smékal, Zdeněk (referee) ; Mikulka, Jan (advisor)
The aim of this master’s thesis is to build stand-alone impedance analyzer for mesasuring antennas’ impedance. The vector network analysis is used as measuring method. Analog (with directional coupler and gain and phase detector) and digital (with 8bit AVR microcontrollers) part of analyzer are described and then build.

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