INVESTIGATION AND DESIGN OF IMPULSE RADIATING ANTENNAS DRIVEN WITH MARX GENERATOR

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OEREN_MSc Thesis.pdf

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2021-2-11

Author

Eren, Özge

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Pulsed power technologies have been a subject of intense studies for many years. These technologies are used in a plethora of applications in diverse areas, such as defense industry, biology, and food processing. In this study, pulsed electric field distributions at kV/m levels are aimed to be obtained by driving an antenna with an impulse generator. A Marx generator is preferred and built to generate impulses. Output signal from the Marx generator, whose rise time is slow to feed antenna, is passed through a pulse forming line (PFL) to obtain a suitable signal for antenna feeding. A pulse shaped by the PFL is transferred to an impulse radiating antenna with the help of a balun. Thus, when the whole system is combined, high-quality electromagnetic pulses can be obtained. Within the scope of this thesis, a Marx generator, a PFL, a Klopfenstein tapered balun, and an impulse radiating antenna are designed, simulated, fabricated, and tested experimentally. Building the overall system required overcoming several important challenges, as well as monitoring potential risks, such as high voltages and electrical breakdowns, which bring limitations on the design of the system.

Subject Keywords

Pulsed power, high-power electromagnetics, Marx generators, pulse forming lines, impulse radiating antennas

URI

https://hdl.handle.net/11511/90251

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

Ö. Eren, “INVESTIGATION AND DESIGN OF IMPULSE RADIATING ANTENNAS DRIVEN WITH MARX GENERATOR,” M.S. - Master of Science, Middle East Technical University, 2021.