Research on Folded Double-Groove Waveguide With Two Sheet Beams Operating on High-Order TE20 Mode for High-Power Terahertz TWT
Research on Folded Double-Groove Waveguide With Two Sheet Beams Operating on High-Order TE20 Mode for High-Power Terahertz TWT
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DOI：
10.1109/ted.2022.3228220
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发表时间：
2023-02
影响因子：
3.1
通讯作者：
Yanyan Tian;G. Shu;Y. Gong;H. Yin;Wenlong He
中科院分区：
文献类型：
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作者：
Yanyan Tian;G. Shu;Y. Gong;H. Yin;Wenlong He
在本文中，提出了一种用于高功率高频行波管（TWT）的具有两个耦合槽的折叠波导。该结构允许改进的 TE20 高阶模式与两片电子束相互作用。对这种新颖结构的传输特性进行了模拟和测量。在 218–230 GHz 范围内实现了 -10 dB 的良好 ${S}_{{21}}$ 和小于 -15 dB 的 ${S}_{{11}}$。此外，对该结构中的波束-波相互作用的模拟预测，220 GHz 时的输出功率为 930 W，具有 58 dB 的小信号增益和 1.3 GHz 的 3 dB 带宽。
In this article, a folded waveguide with two coupling grooves is proposed for high-power and high-frequency traveling wave tubes (TWTs). The structure allows a modified TE20 high-order mode interact with two sheet electron beams. The transmission characteristics of this novel structure were simulated and measured. A good ${S}_{{21}}$ of −10 dB and ${S}_{{11}}$ of less than −15 dB were achieved in the 218–230-GHz range. Moreover, simulations of the beam–wave interaction in this structure predicted an output power of 930 W at 220 GHz, with a small signal gain of 58 dB and a 3-dB bandwidth of 1.3 GHz.