【摘要】 波导-微带过渡结构在毫米波电路中应用广泛，尤其是全频段的过渡更具有通用性。本文设计并仿真了一种W波段矩形波导-微带线的过渡结构，该结构采用E面探针的形式，使用高低阻抗微带线进行匹配，最终实现了波导与悬置微带的场耦合。该过渡结构具有插入损耗小，回波损耗低，加工简单等优点。仿真结果表明，在75-110GHz频带内插入损耗低于0.1dB，回波损耗优于24dB，背靠背仿真，插入损耗低于0.2dB，回波损耗优于17dB。该结构全频段性能良好，具有一定的通用性。更多还原

【Abstract】 Waveguide microstrip transition structures are widely used in millimeter wave circuits, especially in full frequency band transitions, which are more versatile. This article designs and simulates a W-band rectangular waveguide microstrip line transition structure, which adopts the form of an E-plane probe and matches high and low impedance microstrip lines, ultimately achieving field coupling between the waveguide and the suspended microstrip. This transition structure has the advantages of low insertion loss, low return loss, and simple processing. The simulation results show that in the 75-110GHz frequency band, the insertion loss is less than 0.1dB, and the return loss is better than 24dB. Back-to-back simulation shows that the insertion loss is less than 0.2dB, and the return loss is better than 17dB. This structure has good performance in all frequency bands and has a certain degree of universality.更多还原