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

页码：256 / 259

页数：4

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