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The importance and advantages of constructing a high-frequency part of the shf-power units on the basis of steel waveguides

Authors: Gorelova A.V.
Published in issue: #3(20)/2018
DOI: 10.18698/2541-8009-2018-3-268


Category: Medical sciences | Chapter: Medical equipment and devices

Keywords: SHF-power unit, ultra high frequency, steel/brass waveguide, waveguide flange, wave mode, electrical conductivity, waveguide losses, galvanic coating
Published: 27.02.2018

The article considers the problems arising when developing and manufacturing the high-frequency part of the SHF-power units of ultra high frequency including the installations for medical use. The relevance of this topic stems from the extremely high cost of the existing technologies of manufacturing the SHF-power units and the need for their simplification and cheapening. We justify the expediency of using steel waveguides contributing to significant cost reduction, reliability improvement and technological process simplification. The article provides rationalization for selecting the wave-guide duct sections that must be coated with the conducting protective layer. We offer a simple and cheap zinc coating procedure for the wave-guide duct elements. The scientific novelty of the work lies in the fact that we have made recommendations on creating a wave-guide duct.


References

[1] Invention of magnetron. Available at: http://www.radartutorial.eu/04.history/hi80.en.html (accessed 30 November 2017).

[2] Pestryakov V.B. Radiotekhnicheskie sistemy [Radiotechnical schemes]. Moscow, Radio i svyaz’ publ., 1985, 376 p.

[3] Arkhipov A.I. Sposob izmereniya radial’noy skorosti tseli radiolokatsionnoy stantsiey [Measurement technique for radial velocity of radar station target]. Patent 2251710 RF. Appl., 14.07.2003, publ. 10.05.2005.

[4] Magnetron. Available at: http://tubeamplifier.narod.ru/mess065.htm (accessed 16 February 2018).

[5] Advantages of using microwave energy for process heating. Available at: http://www.powderbulksolids.com/article/advantages-using-microwave-energy-process-heating (accessed 30 November 2017).

[6] Bobkov Yu.Yu., Gololobov D.V., Kiril’chuk V. B., Kizhlay I.N., Kukharev A.V., Yurtsev O.A. Issledovanie pryamougol’nogo volnovoda i elementov na ego osnove [Study on rectangular waveguide and parts based on it]. Minsk, BSUIR publ., 2012, 46 p.

[7] Volna Η10 v pryamougol’nom volnovode [Η10 wave in rectangular waveguide]. Available at: http://mikpres.ucoz.ru/_ld/0/7___1.pdf (accessed 30 November 2017).

[8] Elektroprovodnost’ metallov: tablitsa i raschety [Metals conductivity: table and calculations]. Available at: http://specural.com/articles/5/elektroprovodnost-metallov-tablica-i-raschety.html (accessed 30 November 2017).

[9] Golubeva N.S., Mitrokhin V.N. Osnovy radioelektroniki sverkhvysokikh chastot [Fundamentals of UHF radio electronics]. Moscow, Bauman Press, 2008, 486 p.

[10] Gorelov V.V. Ustroystvo snizheniya otrazheniy ot provodyashchey poverkhnosti [Device for decreasing number of reflections from conducting surface]. Patent 2342747 RF. Appl. 18.05.2007, publ. 27.12.2008.