Dielectric effect on the radio-frequency characteristics of a rectangular waveguide grating traveling wave tube

被引：3

作者：

Lu, Zhigang ^{[1
]}

Gong, Yubin ^{[1
]}

Wei, Yanyu ^{[1
]}

Wang, Wenxiang ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Natl Key Lab High Power Vacuum Elect, Chengdu 610054, Peoples R China

来源：

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 2006年 / 27卷 / 08期

关键词：

TWT; dielectric-loaded; rectangular waveguide grating; dispersion; coupling impedance;

D O I：

10.1007/s10762-006-9161-0

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new type of partial-dielectric-loaded rectangular waveguide grating slow-wave structure (SWS) for millimeter wave traveling wave tube (TWT) is presented in this paper. The radio-frequency characteristics including the dispersion properties, the longitudinal electric field distribution and the beam-wave coupling impedance of this structure are analyzed. The results show that the dispersion of the rectangular waveguide grating circuit is weakened, the phase velocity is reduced and the position of the maximum E-z is basically invariant after partially filling the dielectric materials in the rectangular waveguide grating SWS. Although the coupling impedance decreases a little, it still keeps above 40 Omega.

引用

页码：1095 / 1108

页数：14

共 8 条

[1] Pierce gain analysis for a sheet beam in a rippled waveguide traveling-wave tube [J].