Title :
Computer simulation of knife-edge field emission cathode performance
Author :
Zeng, B.Q. ; Yang, Z.H. ; Xie, K.J. ; Yang, C.F.
Author_Institution :
Res. Inst. of High Energy Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
One of the potential advantages of vacuum field emission arrays (FEA) is that the FEA can produce high frequency modulated electron beams at high current densities. A knife-edge field emission array (KEFEA) structure has been built. The KEFEA cathode array consists of many knife field emitters, each with its own self-aligned surrounding gate. The initial tests of the KEFEA cathodes have shown a threshold bias voltage of less than 50 V. In this paper, the KEFEA emission performance has been studied by simulating a unit cell structure using the particle-in-cell simulation code MAGIC.
Keywords :
arrays; cathodes; digital simulation; electrical engineering computing; electron field emission; vacuum microelectronics; 50 V; FEA emission performance; KEFEA cathode array; MAGIC; computer simulation; field emission cathode; high current densities; high frequency modulated electron beams; knife edge FEA; knife field emitters; knife-edge field emission array structure; particle-in-cell simulation code; self-aligned surrounding gate; threshold bias voltage; vacuum field emission arrays; Anodes; Capacitance; Cathodes; Current density; Electron beams; Elementary particle vacuum; Field emitter arrays; Optical modulation; Testing; Vacuum technology;
Conference_Titel :
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6513-5
DOI :
10.1109/ICIMW.2000.892943
