Infocommunications and Radio Technologies Infocommunications and Radio Technologies ИНФОКОММУНИКАЦИОННЫЕ И РАДИОЭЛЕКТРОННЫЕ ТЕХНОЛОГИИ 2587-9936 53204 10.29039/2587-9936.2022.05.1.07 Электроника, фотоника, приборостроение и связь (2.2) ELECTRONICS, PHOTONICS, INSTRUMENTATION AND COMMUNICATIONS (2.2) Электроника, фотоника, приборостроение и связь (2.2) On Prospects of Output Power Increasing in Low-Voltage Multibeam Klystrons for Electron Accelerators On Prospects of Output Power Increasing in Low-Voltage Multibeam Klystrons for Electron Accelerators Галдецкий Анатолий Васильевич Galdeckiy Anatoliy Vasil'evich galdetskiy@istokmw.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 АО «НПП “Исток” имени А. И. Шокина» Фрязино Россия Scientific and production enterprise “Istok” n. a. A. I. Shokin Fryazino Russian Federation 25 03 2022 25 03 2022 5 1 93 100 20 03 2022 05 06 2022 https://rusjbpc.ru/en/nauka/article/53204/view

Physical principles of output power limitation in low-voltage multibeam klystrons are considered. It is demonstrated that metamaterial consisting of array of metal inductive inserts and located in the cavity’s interaction region makes possible significant increasing of phase velocity of transversal wave in the gap. This reveals the opportunity to enhance uniformity of the RF field interacting with the beams in the gap, interaction region diameter, beams current and power of the klystron without cathode voltage increase. Resonators in S and Ka bands are analyzed.

Physical principles of output power limitation in low-voltage multibeam klystrons are considered. It is demonstrated that metamaterial consisting of array of metal inductive inserts and located in the cavity’s interaction region makes possible significant increasing of phase velocity of transversal wave in the gap. This reveals the opportunity to enhance uniformity of the RF field interacting with the beams in the gap, interaction region diameter, beams current and power of the klystron without cathode voltage increase. Resonators in S and Ka bands are analyzed.

 multibeam klystron metamaterial phase velocity annular resonator dispersion multibeam klystron metamaterial phase velocity annular resonator dispersion

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