Vertical transition surface mount waveguide for printed circuit board

Waveguide assemblies are described that utilize surface mount waveguides to achieve vertical transitions of printed circuit boards (PCBs). The surface mount waveguide effectively transfers electromagnetic energy from one side of the PCB to the other side by utilizing a waveguide cavity positioned above a plating bath, thereby achieving low transmission loss (e.g., increasing return loss bandwidth). The waveguide cavity is designed to excite two harmonic peaks of the EM energy to reduce the return loss of the power and increase the power provided to the antenna while supporting a high bandwidth of the EM energy. Further, the surface mount waveguide does not require precise fabrication typically for vertical transitions, allowing the surface mount waveguide to be compatible with low cost PCB materials (e.g., hybrid PCB stacks). 描述了利用表面安装波导件实现印刷电路板(PCB)垂直过渡的波导组件。表面安装波导件通过利用定位在镀槽上方的波导腔来有效地将电磁能量从PCB的一侧传递到另一侧，从而实现低传输损耗(例如，增加回波损耗带宽)。该波导腔被设计用来激发EM能量的两个谐振峰，以减少功率的回波损耗并增加向天线提供的功率，同时支持EM能量的高带宽。此外，该表面安装波导件不需要通常用于垂直过渡的精确制造