Double-gated field emitter arrays for microwave devices

Author

Xuezeng, Zhuang ; Shanhong, Xia ; Xinxin, Tao

Author_Institution

Inst. of Electron., Acad. Sinica, Beijing, China

fYear

1997

fDate

2-5 Dec 1997

Firstpage

533

Abstract

After having a brief discussion on two kinds of structures of double-gated field emitter arrays (DGFEAs), presented in the paper are the design and simulation methods of the DGFEA, and simulation results of its emission characteristics and focusing performance. The results show that by properly introducing a focus gate above a control gate in the FEA, the DGFEA with an aperture focusing structure will produce a parallel electron beam, and its focusing performance can be effectively adjusted through the focus gate voltage; the additional focus gate lowers the array´s emission, but after improvement the maximum emission density of the DGFEA (with a control gate aperture of 1 μm and tip spacing of 3 μm) may exceed 500 A/cm²

Keywords

electron beam focusing; electron field emission; microwave tubes; vacuum microelectronics; 1 micron; 3 micron; aperture focusing structure; control gate; double-gated FEA; emission characteristics; field emitter arrays; focus gate; focusing performance; microwave devices; parallel electron beam; Apertures; Capacitance; Electron beams; Electron emission; Field emitter arrays; Laboratories; Microwave antenna arrays; Microwave devices; Transducers; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific

Print_ISBN

962-442-117-X

Type

conf

DOI

10.1109/APMC.1997.654596

Filename

654596