A novel waveguide-to-coaxial transition with magnetic closed loop has been developed. A conventional rectangular waveguide (RWG) directly mounts on a printed circuit board (PCB) and actualizes the transition from the RWG to the coaxial line (CL). Due to the magnetic coupling structure implanted in the PCB, the size of the transition is similar to the aperture of the RWG. After studying the structural characteristics, two transitions are fabricated. The transition in back-to-back connection is measured. The bandwidth is wider than 23.6% for insertion loss (IL) no more than 0.61 dB and return loss more than 15 dB. Omitting slots and insertion, the vertical transition can integrate more millimeter-wave circuits with smaller sizes and lower cost.

中文翻译：

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具有嵌入式磁闭环的新型波导到同轴过渡


一种新型的具有磁闭环的波导到同轴的过渡已经被开发出来。传统的矩形波导（RWG）直接安装在印刷电路板（PCB）上并实现从RWG到同轴线（CL）的过渡。由于PCB中植入了磁耦合结构，过渡的尺寸与RWG的孔径相似。研究结构特征后，制造了两个过渡。测量背靠背连接的转变。插入损耗 (IL) 不超过 0.61 dB，回波损耗超过 15 dB，带宽宽于 23.6%。垂直转接省去了开槽和插接，可以集成更多毫米波电路，尺寸更小，成本更低。