摘要：【中文】本发明公开了一种基于脊间隙波导的Ka波段GYSEL功分器，该功分器包括基于脊间隙波导的功分结构以及位于1个输入端口和2个输出端口处的脊间隙波导‑微带过渡结构。脊间隙波导中采用销钉‑凹槽的周期性电磁带隙结构，拓宽了脊间隙波导的带宽。微带过渡结构中矩形槽与置于矩形槽一侧上方的喇叭形微带探针用于实现脊间隙波导与微带线之间电磁波的耦合。对脊间隙波导中的脊进行3阶四分之一波长的切比雪夫阻抗变换实现了从脊间隙波导到矩形腔的宽频带范围的阻抗匹配。该功分器具有结构简单、低损耗、特性良好等优点，易于实现电路集成与系统封装。 【EN】The invention discloses a Ka-band GYSEL power divider based on ridge gap waveguides, which comprises a power dividing structure based on ridge gap waveguides and ridge gap waveguide-microstrip transition structures positioned at 1 input port and 2 output ports. The ridge gap waveguide adopts a pin-groove periodic electromagnetic band gap structure, so that the bandwidth of the ridge gap waveguide is widened. The rectangular groove in the microstrip transition structure and the horn-shaped microstrip probe arranged above one side of the rectangular groove are used for realizing the coupling of electromagnetic waves between the ridge gap waveguide and the microstrip line. The 3-step quarter-wave chebyshev impedance transformation of the ridge in the ridge-gap waveguide realizes impedance matching in a wide frequency band range from the ridge-gap waveguide to the rectangular cavity. The power divider has the advantages of simple structure, low loss, good characteristics and the like, and is easy to realize circuit integration and system packaging.