RETRACTED: Dispersion Control of a Helix Slow-Wave Structure by Epsilon-Negative Metamaterial Loading for Wideband Traveling-Wave Tubes (Retracted Article)

被引：3

作者：

Guha, Raktim ^{[1
]}

Purushothaman, N. ^{[1
]}

Ghosh, Sanjay K. ^{[1
]}

Basu, B. N. ^{[2
]}

机构：

[1] CSIR, CEERI, Microwave Devices Area, Pilani 333031, Rajasthan, India

[2] SKFGI, Sir JC Bose Sch Engn, Mankundu 712139, W Bengal, India

来源：

2019 INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2019年

关键词：

Dispersion control; interaction impedance; helix slow-wave structure; travelling-wave tube; metamaterial (MTM); epsilon-negative MTM;

D O I：

10.1109/IVEC.2019.8744774

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 simple metamaterial loading scheme for a helical slow-wave structure was proposed in lieu of a conventional metal vane loading. The proposed structure consists of a helix in a metal envelope supported by rectangular dielectric rods each with I-shaped metal-strip epsilon-negative metamaterial printed on both of its radial faces. Our study, based on CST simulation, showed that the proposed simple structure gives controlled dispersion as obtained by the conventional vane-loaded helix with large interaction impedance values even higher than those of the latter.

引用

页数：2

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