Design and Experimental Results of a W-Band Gyro-TWA With the Widest Bandwidth

被引：0
|
作者：
Yao, Yelei [1 ]
Liu, Guo [1 ]
Jiang, Wei [1 ]
Cao, Yingjian [1 ]
Wang, Yu [1 ]
Dai, Xinge [1 ]
Wang, Jianxun [1 ]
Luo, Yong [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 610054, Peoples R China
[2] Lab Electromagnet Space Cognit & Intelligent Contr, Beijing 100089, Peoples R China
来源：
IEEE ELECTRON DEVICE LETTERS | 2024年 / 45卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Broadband; gyro-TWA; high-efficiency; PIC simulation; experiments; theory; W-band;
D O I：
10.1109/LED.2023.3337503
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：
This letter presents the design and experimental results of a 152-kW W-band gyrotron travelling-wave amplifier (gyro-TWA) that boasts an enhanced 3-dB instantaneous bandwidth ranging from 8.8 GHz to 12.5 GHz, and 1-dB bandwidth from 7.0 GHz to 11.5 GHz. This was achieved by powering the gyro-TWA with a 60 kV, 11 A electron beam. The amplifier demonstrates an output power exceeding 120 kW and an interaction efficiency above 19.1% within 89.8-101.3 GHz. This performance improvement was made possible by using a curved-profile circuit that matches with the gyrotron solenoid across a wide frequency band. The theoretical predictions, particle-in-cell simulations and experimental results are compared and found to be in good agreement.
引用
收藏
页码：256 / 259
页数：4
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