A novel dual-pole dual-throw (DPDT) waveguide switch is proposed for high-power and low-loss applications. The proposed DPDT was designed based on the contactless properties of the gap waveguide technologies in the Ku frequency band. The DPDT was composed of two concentric contactless cylinders. Standard rectangular waveguide ports (WR 75) and waveguide paths are machined in the middle of these cylinders. The rotational movement of the inner cylinder is realized using two bearings in the top and bottom of the DPDT. The proposed structure is fabricated and the measured results are in good agreement with the simulated ones. The measured insertion loss and return loss for the aligned ports are better than 0.1 and 25 dB in the frequency band ranging from 11 to 13.5 GHz, respectively, and the measured isolation between two adjacent ports is better than 60 dB.

中文翻译：

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一种基于非接触间隙波导技术的波导开关

针对高功率和低损耗应用提出了一种新颖的双刀双掷 (DPDT) 波导开关。所提出的 DPDT 是基于 Ku 频带中间隙波导技术的非接触特性设计的。DPDT 由两个同心的非接触式圆柱体组成。标准矩形波导端口 (WR 75) 和波导路径在这些圆柱体的中间加工。内筒的旋转运动是通过DPDT顶部和底部的两个轴承实现的。所提出的结构是制造出来的，测量结果与模拟结果非常吻合。在 11 至 13.5 GHz 的频段内，对准端口测量的插入损耗和回波损耗分别优于 0.1 和 25 dB，