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首页> 外文会议>2013 International Workshop on Microwave and Millimeter Wave Circuits and System Technology >Design of a 16GHz TE11-HE11 mode converter in smooth-walled circular waveguide
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Design of a 16GHz TE11-HE11 mode converter in smooth-walled circular waveguide

机译：光滑壁圆波导中的16GHz TE11-HE11模式转换器的设计

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摘要

The traditional TE11-HE11 mode conversion is usually achieved in a circumferentially corrugated waveguide with varying slot depth, which is easy to bring about microwave breakdown due to the machining burrs at the high frequency. In order to avoid this defect, the smooth-walled structure with a gradual change of the radius is given in this paper. Based on the mode coupling theory, a 16GHz TE11-HE11 mode converter constituted by parabola-profile and sin-profile has been designed by numerical calculation, it also has been testified by electromagnetic simulation software. The simulation results are consistent with the numerical calculation results. The bandwidth of the designed mode converter is over 1.8GHz, and the relative bandwidth is about 11%, the conversion efficiency at 16GHz could reach 99.21%.
机译：传统的TE11-HE11模式转换通常在缝隙深度变化的圆周波纹波导中实现，由于高频处的加工毛刺，很容易导致微波击穿。为了避免这种缺陷，本文给出了半径逐渐变化的光滑壁结构。基于模式耦合理论，通过数值计算设计了由抛物线轮廓和正弦轮廓构成的16GHz TE11-HE11模式转换器，并通过电磁仿真软件进行了验证。仿真结果与数值计算结果一致。设计模式转换器的带宽超过1.8GHz，相对带宽约为11％，在16GHz时转换效率可以达到99.21％。

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