Figure 4 Measured E-plane xαz plane and H-plane yαz plane Ε½ . radiation patterns for the proposed antennas shown in Figure 2 a . Ε½ . Ε½ . a W s 11 mm. b W s 20 mm w x design in 1 , for dual-band operation with a fixed lower operating frequency.
A low-power X-band free electron laser by prebunching of the electrons
β Scribed by Fareq Malek; James Lucas; Yi Huang
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 470 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
We are developing a prototype free electron laser that is compact, low cost, and low power. The design, setup, and results of a novel Xβband rectangular waveguide prebunched free electron laser (PFEL) are presented in this article. Our initial device operates at 10 GHz and uses two rectangular waveguide cavities (one for velocity modulation and the other for energy extraction). The electron beam used in this experiment is produced by thermionic electron gun, which operates at 3 kV and up to 50 ΞΌA. The nominal beam diameter is 1 mm passing across the Xβband cavity resonators. The resonant cavity consists of a thin gap section of height 1.5 mm, which reduces the beam energy required for beam wave interaction. Β© 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2483β2486, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25493
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