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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wright, R.L. Schamiloglu, E. Arman, M.J. Fayne, W.R. Hendricks, K.J. Loree, D.L. Luginsland, J.W. Spencer, T.A. Cavazos, T.C. Golby, K.E. |
| Copyright Year | 1999 |
| Description | Author affiliation: Dept. of Electr. & Comput. Eng., New Mexico Univ., Albuquerque, NM, USA (Wright, R.L.) |
| Abstract | Summary form only given, as follows. The transit-time effect in a coaxial structure has been proposed by Arman (1996) as a mechanism to develop low impedance high power microwave devices using no externally-generated magnetic fields and having no confining foils. The major advantages seen for this type of device include: (1) a low device impedance due to the radial geometry; (2) reduced X-ray emission and associated shielding due to the low operating voltage; (3) elimination of magnets normally used in RF oscillators to stabilize the electron beam; and, (4) simplified coupling of the device output to the RF extraction structure (waveguide of antennas). The two-dimensional particle-in-cell code MAGIC has been used to design a prototype device: the redial acceletron. In the prototype device, an electron beam propagates radially within an annular anode-cathode (A-K) gap. Interaction between the electron beam self-generated electric and magnetic fields, non-linear (with gap voltage) cathode current emission, and electron transit time across the A-K gap generates a self-sustaining RF oscillation. Due to the complex internal geometry of the prototype device, simulation is not straightforward. The prototype design has been fabricated and tested. |
| File Size | 106223 |
| File Format | |
| ISBN | 0780352246 |
| ISSN | 07309244 |
| DOI | 10.1109/PLASMA.1999.829696 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-06-24 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Electron beams Radio frequency Prototypes Impedance Geometry Coaxial components Microwave devices Magnetic shielding Low voltage Voltage-controlled oscillators |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
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