A Broad Bandwidth Metamaterial Pillbox Window for W-Band Traveling-Wave Tubes

被引：12
作者：
Bai, Ningfeng [1 ]
Shen, Jingxuan [1 ]
Fan, Hehong [1 ]
Sun, Xiaohan [1 ]
Pan, Pan [2 ]
Cai, Jun [2 ]
Yu, Wenjie [2 ]
Feng, Jinjun [2 ]
机构：
[1] Southeast Univ, Res Ctr Elect Device & Syst Reliabil, Nanjing 210096, Peoples R China
[2] Beijing Vacuum Elect Res Inst, Beijing 100016, Peoples R China
来源：
IEEE ELECTRON DEVICE LETTERS | 2021年 / 42卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Bandwidth; Metamaterials; Metals; Electric fields; Simulation; Reflectivity; Reflection; Pillbox window; traveling-wave tubes; metamaterial; RF WINDOW; DESIGN;
D O I：
10.1109/LED.2021.3093064
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 low voltage standing wave ratio (VSWR) broad bandwidth pillbox window with metamaterial is proposed for W-band traveling-wave tubes (TWTs) in this paper. The metamaterial structure is designed on a dielectric surface, which decreases the VSWR and broadens the bandwidth of the pillbox window. The cold-test results of the window with metamaterial are presented, which showed that the metamaterial pillbox window (MPW) achieves a bandwidth of 31.5 GHz with VSWR below 1.2, and a bandwidth of 18 GHz with VSWR below 1.1. The ghost mode and the power capacity of the window were also investigated. The results showed that the proposed metamaterial pillbox window is suitable for medium power TWTs. A Ka-band MPW was fabricated and the test results agreed well with the simulation results.
引用
收藏
页码：1228 / 1231
页数：4
相关论文
共 26 条
[1]   A Ka-Band Folded Waveguide Traveling Wave Tube With Lumped Resistance Metamaterial Absorber [J].
Bai, Ningfeng ;
Xiang, Wenchen ;
Shen, Jingxuan ;
Shen, Changsheng ;
Sun, Xiaohan .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2020, 67 (03) :1248-1253
[2]   H- and E-Plane Loaded Slow Wave Structure for W-Band TWT [J].
Billa, Laxma R. ;
Akram, M. Nadeem ;
Paoloni, Claudio ;
Chen, Xuyuan .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2020, 67 (01) :309-313
[3]   Microwave System of Transverse Output for a High-Power W-Band Gyro-TWT [J].
Bogdashov, Alexandr A. ;
Samsonov, Sergey, V .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2020, 67 (03) :1221-1226
[4]   Design and Large-Signal Modeling of a W-Band Dielectric TWT [J].
Calame, Jeffrey P. ;
Cook, Alan M. .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2017, 45 (10) :2820-2834
[5]  
Donaldson C. R, 2018, P 43 INT C INFR MILL, P1, DOI [10.1109/ IRMMW-THz.2018.8510257, DOI 10.1109/IRMMW-THZ.2018.8510257]
[6]   Experimental Investigation of an Ultrawide Bandwidth W-Band Pulsed Traveling-Wave Tube With Microfabricated Folded-Waveguide Circuits [J].
Du, Yinghua ;
Cai, Jun ;
Pan, Pan ;
Dong, Ruitong ;
Zhang, Xiaoqing ;
Liu, Shishuo ;
Wu, Xianping ;
Feng, Jinjun .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2019, 47 (01) :219-225
[7]   Modified I-shaped hexa-band near perfect terahertz metamaterial absorber [J].
Elakkiya, A. ;
Sankararajan, Radha ;
Sreeja, B. S. ;
Manikandan, E. .
CIRCUIT WORLD, 2020, 46 (04) :281-284
[8]   Design and Cold Test of Flat-Roofed Sine Waveguide Circuit for W-Band Traveling-Wave Tube [J].
Fang, Shuanzhu ;
Xu, Jin ;
Yin, Hairong ;
Yin, Pengcheng ;
Lei, Xia ;
Wu, Gangxiong ;
Yang, Ruichao ;
Luo, Jinjing ;
Yue, Lingna ;
Zhao, Guoqing ;
Wang, Wenxiang ;
Liu, Wenxin ;
Li, Dazhi ;
Wei, Yanyu .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2020, 48 (11) :4021-4028
[9]   Development of W-Band Folded Waveguide TWT With Lowered Operating Voltage and Improved Gain Flatness [J].
Fei, Li ;
Liu, Xiao ;
Zhao, Jiandong ;
Tianjun, Ma ;
Yuhui, Sun ;
Jian, Wang ;
Cha, Gao ;
Cao, Linlin ;
Huang, Mingguang .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2020, 48 (08) :2939-2947
[10]   Development of new S-band RF window for stable high-power operation in linear accelerator RF system [J].
Joo, Youngdo ;
Lee, Byung-Joon ;
Kim, Seung-Hwan ;
Kong, Hyung-Sup ;
Hwang, Woonha ;
Roh, Sungjoo ;
Ryu, Jiwan .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017, 866 :1-8
123