An Output Coupler for a W-Band High Power Wideband Gyroamplifier
An Output Coupler for a W-Band High Power Wideband Gyroamplifier
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DOI：
10.1109/ted.2017.2660304
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发表时间：
2017-01
影响因子：
3.1
通讯作者：
P. Mcelhinney;C. Donaldson;J. McKay;Liang Zhang;D. Robertson;R. Hunter;Graham M. Smith;Wenlong He;A. Cross
中科院分区：
文献类型：
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作者：
P. Mcelhinney;C. Donaldson;J. McKay;Liang Zhang;D. Robertson;R. Hunter;Graham M. Smith;Wenlong He;A. Cross
设计、制造了一种用于W波段高功率宽带陀螺放大器的输出耦合器，并进行了实验测试。它由一个高性能的正弦2平行波纹喇叭和一个宽带多层窗组成。主要的设计要求是喇叭/窗组合必须在10 GHz带宽上具有低于−30分贝的输入回波损耗，提供高质量的输出波束方向图，并在超高真空条件下工作。该耦合器在90~100 GHz频段将圆波导TE11模转换为自由空间拉盖尔高斯型LG00模，回波损耗在−30~−40d B之间，在94 GHz处的模拟高斯耦合效率大于99%。
An output coupler for a W-band high power wideband gyroamplifier has been designed, manufactured, and experimentally measured. It consists of a high performance sin2-parallel corrugated horn integrated with a broadband multilayer window. The major design requirements are that the horn/window combination must have an input return loss lower than −30 dB over a 10-GHz bandwidth, provide a high quality output beam pattern, and operate under ultrahigh-vacuum conditions. The coupler converts a circular waveguide TE11 mode into the free space Laguerre Gaussian LG00 mode over the frequency band of 90–100 GHz with a measured return loss of between −30 and −40 dB and a simulated Gaussian coupling efficiency of over 99% at 94 GHz.