Study of a Broadband and High-Power Terahertz Gyrotron Traveling-Wave Amplifier

被引：4

作者：

Gao, Junqiang ^{[1
]}

Li, Bo ^{[1
]}

Yu, Wenjie ^{[1
]}

Chen, Yang ^{[1
]}

Yin, Huabi ^{[1
]}

Xu, Biaogang ^{[1
]}

He, Wenlong ^{[1
]}

机构：

[1] Shenzhen Univ, Coll Elect & Informat Engn, Shenzhen 518060, Peoples R China

来源：

IEEE ELECTRON DEVICE LETTERS | 2023年 / 44卷 / 10期

关键词：

Gyrotron traveling wave amplifier (gyro-TWA); gyro-TWT; helically corrugated interaction region (HCIR); gyro-devices; GUIDE; TWT;

D O I：

10.1109/LED.2023.3308567

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 a high-power (> 1 kW) broadband gyrotron traveling wave amplifier (gyro-TWA) based on a five-fold (5F) helically corrugated interaction region (HCIR) that operates at the frequency range of 254-280 GHz. The 5F HCIR was manufactured and its measured dispersion characteristics matched very well both with the theoretical predictions and simulated results. The third harmonic cyclotron mode of a 60 keV, 0.75 A, axis-encircling electron beam could be used to resonantly interact with a traveling TE31-like eigenwave in the 5F HCIR to achieve a broadband amplification. The 3-D particle-in-cell simulations predicted a saturated output power and gain of similar to 1.5 kW and 39.7 dB respectively, with a 3-dB bandwidth of similar to 26 GHz (similar to 10% relative bandwidth) driven by a 0.16 W input signal.

引用

页码：1744 / 1747

页数：4

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