A Y-junction circulator based on the ridge gap waveguide (RGW) as a hosting guiding structure is designed using a developed closed-form systematic procedure. To validate the structure, an air-filled-to-dielectric-filled transition is proposed using a substrate perforation technique. The proposed RGW circulator covers the whole Ku-band with a matching bandwidth throughout the operational bandwidth below −15 dB. A prototype is fabricated and tested, providing a satisfactory agreement with the simulated results.

中文翻译：

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基于脊隙波导技术的Y型结环行器系统设计程序。

使用已开发的封闭形式的系统程序设计了一种基于脊隙波导（RGW）作为主体引导结构的Y型结环行器。为了验证该结构，提出了一种使用衬底穿孔技术的从空气填充到介电填充的过渡结构。拟议的RGW循环器覆盖整个Ku频段，并且在低于-15 dB的整个工作带宽内具有匹配的带宽。原型被制造和测试，与仿真结果提供了令人满意的一致性。