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Proceedings Paper

Parasitic modes in oven magnetron
Author(s): Martyna Woźniak; Emil Szkop; Michał Rychlewski; Andrzej Różycki; Dariusz Baczewski; Mariusz Błażejewicz; Dariusz Laskowski
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Paper Abstract

A magnetron as a generation lamp is a groundbreaking invention. Magnetrons can achieve high power in both continuous and impulse mode. In addition, their characteristic feature and at the same time a great advantage is the high efficiency in the decimeter frequency range. Moreover, they have a very good ratio of power generated to mass compared to semiconductor solutions. The purpose of this study was to investigate the stability of the oven magnetron in terms of emission of undesirable signals. The aim of magnetrons of this type is to produce a continuous electromagnetic wave with stable oscillations of 2.45 GHz. During experimental research, additional spurious frequency of 4.3 GHz was observed in some cycles. Such spuria adversely affect the stability of the generated signal and disturb the surroundings. To find out why the signal is generated, the oven magnetron is examined. After that the numerical analysis was performed on this basis. The analysis shows that the magnetron operates in a different mode than the basic mode π. Numerical studies in the form of computer simulations were carried out in the CST program. To do this magnetron geometry was implemented in to the program. For experimental measurements, a commercially available oven magnetron was used. During the tests, the operation of a continuous wave generator with a frequency of 2.45 GHz and operating in the power range of 200-800W.

Paper Details

Date Published: 19 April 2018
PDF: 5 pages
Proc. SPIE 10715, 2017 Radioelectronic Systems Conference, 1071509 (19 April 2018); doi: 10.1117/12.2316774
Show Author Affiliations
Martyna Woźniak, KUBARA LAMINA S.A. (Poland)
Emil Szkop, KUBARA LAMINA S.A. (Poland)
Michał Rychlewski, KUBARA LAMINA S.A. (Poland)
Andrzej Różycki, KUBARA LAMINA S.A. (Poland)
Dariusz Baczewski, KUBARA LAMINA S.A. (Poland)
Mariusz Błażejewicz, KUBARA LAMINA S.A. (Poland)
Dariusz Laskowski, Wojskowa Akademia Techniczna (Poland)

Published in SPIE Proceedings Vol. 10715:
2017 Radioelectronic Systems Conference
Adam Kawalec; ANDRZEJ WITCZAK, Editor(s)

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