一种新型的基于半模基片集成波导技术的Butler矩阵

A Novel Butler Matrix Based on Half-Mode Substrate Integrated Waveguide Technology

提出并实现了一种新型的基于半模基片集成波导技术的Butler矩阵,实际制作的样品工作在X波段(10GHz),实测插入损耗为2dB,样品尺寸为24 cm×6.5 cm。采用了标准的双面PCB工艺,该结构与传统的微带电路相比具有插入损耗低、功率容量大等特点,与基片集成波导相比具有面积小的优点,是一种适合于在微波毫米波频段多波束天线使用的波束形成网络。文中给出了具体设计过程和测试结果。

In this paper a novel Butler matrix based on Half-Mode Substrate Integrated Waveguide （HMSIW） technology is proposed and implemented. The prototype is fabricated at X-band （10GHz） with a standard double side PCB process. The measured insertion loss is 2dB; the size of the prototype is 24cm ×6.5cm. Compared with conventional microstrip technology, this structure has a lower insertion loss and better power handling capability. Compared with that based on SIW technology, the size of the Butler matrix is considerably reduced. Thus, it is a good candidate for beam-forming networks of microwave or millimeter wave muhi-beam antennas. The detailed design process and the measured results are presented.