Photonic Crystal-Structures for THz Vacuum Electron Devices

被引：41

作者：

Letizia, Rosa ^{[1
,2
]}

Mineo, Mauro ^{[1
]}

Paoloni, Claudio ^{[1
]}

机构：

[1] Univ Lancaster, Dept Engn, Lancaster LA1 4YW, England

[2] Cockcroft Inst, Warrington WA4 4AD, Cheshire, England

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2015年 / 62卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

Backward-wave oscillator (BWO); corrugated waveguide; photonic bandgap (PBG); photonic crystal (PhC); THz; vacuum electron devices; WAVE; BEAM;

D O I：

10.1109/TED.2014.2366639

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：

The technology of photonic crystals (PhCs) is investigated here to improve the performance of THz vacuum electron devices. Compared with conventional metallic waveguides, the PhC arrangement alleviates typical issues in THz vacuum electron tubes, i.e. difficult vacuum pumping process and assembling, and improves the input/output coupling. A slow-wave structure (SWS) based on a corrugated waveguide assisted by PhC lateral walls and the efficient design of a PhC coupler for sheet-beam interaction devices are demonstrated. Based on the proposed technology, a backward-wave oscillator (BWO) is designed in this paper. Cold parameters of the novel PhC SWS as well as 3-D particle-in-cell simulations of the overall BWO are investigated, obtaining more than 70-mW-peak output power at 0.650 THz for beam voltage of 11 kV and beam current of 6 mA.

引用

页码：178 / 183

页数：6

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