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Smyčková anténa s automatickým laděním / Magnetic loop antenna with automatic tunerHorníček, Ladislav January 2008 (has links)
This project is focused on the magnetic loop antenna with automatic tuner in band short waves. This antenna is only the magnetic part of the electromagnetic radio wave used. At the beginning work are lumped most important characteristics these antennas and discuss individual parts antennas. Next part is proposal antennas with presentation progress and relations needed to their proposal. Emphasis is placed on a proposal tuning capacitor. Last part discuss possibilities automatic antennas tuning by the help of microprocessor.
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Разработка программного обеспечения для DIY Vector Network Analyzer : магистерская диссертация / DIY Vector Network Analyzer Software DevelopmentТеребов, И. А., Terebov, I. A. January 2021 (has links)
Объектом исследования является прибор DIY Vector Network Analyzer UVNA-63. Целью работы является разработка программного обеспечения для DIY Vector Network Analyzer UVNA-63. В данной работе описана разработка программного обеспечения в программе Matlab. Описана работа разработанных функций измерения. Описана работы разработанного графического интерфейса. Доработка методики лабораторных работ. Актуальность работы обоснована отсутствием программного обеспечения для проведения измерений на векторном анализаторе цепей, который имеется в распоряжении кафедры и может быть задействован в учебном процессе. Разработанное ПО позволит проводить измерения, производить калибровку аппарата, сохранять полученные данные в различных форматах, отображать полученные данные на графике и устанавливать маркеры на графике. Область применения является учебная сфера. С помощью разработанного программного обеспечение возможно выполнять лабораторные работы и измерять исследуемые устройства. / The object of research is the device DIY Vector Network Analyzer UVNA-63. The purpose of the work is to develop software for DIY Vector Network Analyzer UVNA-63. This paper describes software development in Matlab. The operation of the developed measurement functions is described. The work of the developed graphical interface is described. Refinement of the laboratory work methodology. The relevance of the work is justified by the lack of software for carrying out measurements on a vector network analyzer, which is at the disposal of the department and can be used in the educational process. The developed software will make it possible to carry out measurements, calibrate the apparatus, save the obtained data in various formats, display the obtained data on a graph and set markers on the graph. The scope is the educational area. With the help of the developed software, it is possible to carry out laboratory work and measure the investigated devices.
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Flíčková anténa s budicí štěrbinou / Centre-fed microstrip patch antennaJireček, Martin January 2011 (has links)
Systems with extreme bandwidth are part of advanced modern systems at radio high capacitive communication. Originally this technology was intended for radar scan. Thanks to wide frequency band had radar possibility „ see" a behind crimp, e.g. behind woody partitions etc . To his noise immunity, fail safe tapping plus small wattage heftiness began use for datal systŽm function. If is elementary antenna compound from coaxial probe and shorting outlet, it is possible use to actuating separate narrow slot placed in the middle of incandescent dabs. Impedance and radiating characteristics conventionally plumbed phlobaphene antennae excited tape lead and suggested microstrip phlobaphene antennae are experimentally explored plus collated. Explored is so and effect changes slotted longitude slot on characteristics elementary antenna.
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Vysokofrekvenční měřič výkonu / RF power meterHlaváč, Štěpán January 2013 (has links)
This master’s thesis describes various principles of measurement of electromagnetic waves in a free space and on a line. Used sensors and their real parameters are given for every method. The analysis of protections of high-frequency inputs of measuring instruments is done here and the most suitable method and protections of input for realization are chosen. The analysis of design of secondary protection of high-frequency input is done in this project. The protection of input is realized and measured. The suitable method of measurement is chosen as well as the sensor for measurement of power. The block diagram and circuit diagram of the meter of power are designed. According to designed conception the measuring instrument for measurement of power is realized and its single qualities are measured during the realization. In the final part its precision is measured and the evaluation of results is done.
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