Low-Loss Transmission Line for a 3.4-kW, 93-GHz Gyro-Traveling-Wave Amplifier
Low-Loss Transmission Line for a 3.4-kW, 93-GHz Gyro-Traveling-Wave Amplifier
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DOI：
10.1109/ted.2020.3039427
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发表时间：
2021-01-01
影响因子：
3.1
通讯作者：
Whyte, Colin G.
中科院分区：
文献类型：
--
作者：
Donaldson, Craig R.;Zhang, Liang;Whyte, Colin G.
本文介绍了一种用于毫米波辐射传输的传输线系统。整个系统包括一个TE 11到TE 01模式转换器、波导锥形、斜接弯曲和许多直段。文中介绍了各个部件的设计，并给出了优化的仿真结果。模式转换器示出了大于96%的模式转换效率，可以在W波段的2%的带宽上实现。当斜接弯曲被配置为在反射表面之前引入高阶波导模式的混合时，斜接弯曲在相同的带宽上表现出各自为0.04dB的传输损耗。在90-96-GHz频率范围内研究了传播长度为20 m的示例传输线系统，其中包括四个90度弯曲的无氧高导电性（OFHC）铜波导材料，并且在93 GHz下显示出0.84-dB的传输损耗。
In this article, a transmission line system for the propagation of millimeter-wave radiation is presented. The full system includes a TE11-to-TE01 mode converter, waveguide tapers, miter bends, and many straight sections. The design of each of these components is described, and the optimized simulation results are given. The mode converter shows a greater than 96% mode conversion efficiency that can be achieved over a 2% bandwidth at the W-band. The miter bends demonstrate a transmission loss of 0.04 dB each over the same bandwidth when they are configured to introduce a mixture of higher order waveguide modes before the reflecting surface. An example transmission line system with a propagation length of 20 m, inclusive of four 90 degrees bends with an oxygen-free high conductivity (OFHC) copper waveguide material, was studied over a 90-96-GHz frequency range and showed a 0.84-dB transmission loss at 93 GHz.