Results 1 to 10 of about 842 (116)
Results in Physics, 2021 A floating zone plate (ZP) was installed in the axial vircator for the formation of VC2 by using the wall charge of drifting electrons. The material of the opaque zones was changed to aluminum, copper, and glass to observe the effects. The main frequency
Eun Ha Choi +2 more
exaly +4 more sources
Results in Physics, 2019 A virtual cathode oscillator (vircator) is a special type of oscillator capable of generating high-power microwaves. We studied an axially extracted vircator by installing a cone-shaped reflector in our pulsed power device, “Chundoong” and numerically ...
Eun Ha Choi, Sohail Mumtaz, Jun Sup Lim
exaly +4 more sources
A Novel High-Efficiency S-Band Conical Axial Vircator
IEEE AccessA VIRtual CAThode oscillatOR (Vircator) is a High-Power Microwave (HPM) vacuum electron device (VED) with applications in the field of health, energy, space, environment, and defense.
Patrizia Livreri
exaly +4 more sources
Experimental Study of a Triode Reflex Geometry Vircator [PDF]
IEEE Transactions on Plasma Science, 2017 4 pages, 14 ...
Vladimir Baryshevsky +3 more
openaire +6 more sources
Axial Vircator for Electronic Warfare Applications
Radioengineering, 2009 This paper deals with a high power microwave generator with virtual cathode – vircator in axial release for electronic warfare applications. The classification of directed energy weapons microwave (DEWM) is introduced together with basic block ...
L. Drazan, R. Vrana
doaj +3 more sources
Investigation of an Axial Virtual Cathode Oscillator with an Open-Ended Coaxial Cathode [PDF]
Journal of Electromagnetic Engineering and Science, 2022 A cathode with an open-ended coaxial structure is experimentally investigated using an axial virtual cathode oscillator (vircator). To enhance the microwave power output, an open-ended coaxial cathode is installed in the axial vircator.
Se-Hoon Kim +3 more
doaj +1 more source
High energy microwave weapon: Electromagnetic bomb [PDF]
Vojnotehnički Glasnik, 2021 Introduction/purpose: Technological progress has led to the actualization of the problem of construction and use of high-energy microwave weapons, especially electromagnetic bombs. However, in the recent military-professional literature, this issue is
Goran M. Banjac +3 more
doaj +1 more source
Electronics, 2022 A virtual cathode oscillator or vircator is a vacuum tube for producing high-power microwaves (HPM). The efficiency of the vircator has been a difficult task for decades.
Sohail Mumtaz, E. Choi
semanticscholar +1 more source
Novel Configuration for a C-Band Axial Vircator With High Output Power
IEEE Transactions on Electron Devices, 2022 We present a novel configuration for an axial virtual cathode oscillator (Vircator) operating in the ${C}$ -band and designed for high output power applications. In order to enhance the efficiency, we have employed a geometry with up to seven reflectors
Giacomo Migliore +4 more
semanticscholar +1 more source
Efficiency Enhancement for an S-Band Axial Vircator Using 5-Stage Two-Step Tapered Radiators
International Vacuum Electronics Conference, 2022 An S-band multistage axial virtual cathode oscillator with efficiency enhancement for high pulsed power electromagnetic applications is presented. The Particle-in-Cell (PIC) results of the designed 5-stage Vircator, with two-step negative tapering in the
P. Livreri +8 more
semanticscholar +1 more source