Title :
Simulation of double-gated Spindt cathodes
Author :
Jun Cai ; Li, Xinghui ; Yang, Chongfeng ; Li, Li ; Feng, Jinjun ; Bai, Guodong ; Li, Bingyan ; Liao, Fujiang ; Ding, Mingqing ; Zhang, Fuquan
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., China
Abstract :
Beam focusing of double-gated field emission cathodes is described in this paper. Simulations for a single Spindt tip emitter without focusing electrode, using IESLORENTZ-2D show a good agreement with the experimental results. Simulations of the single tip with coaxial focusing electrode are also carried out, and the effects of various parameters on beam focusing are analyzed. The results indicate that the focusing effect and emission characteristics need to be considered to meet design criteria.
Keywords :
cathodes; electron beam focusing; electron field emission; simulation; IESLORENTZ-2D; Spindt tip emitter; beam focusing; coaxial focusing electrode; double-gated Spindt cathodes; double-gated field emission cathodes; Cathodes; Coaxial components; Current density; Electrodes; Electron beams; Electron emission; Electron tubes; Flat panel displays; Microwave devices; Voltage;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2004. ICMMT 4th International Conference on, Proceedings
Print_ISBN :
0-7803-8401-6
DOI :
10.1109/ICMMT.2004.1411583
