中文摘要：

提出了一种双面低阻槽线共面波导功率分配器,其输入端采用双面共面波导,输出端采用双面低阻槽线。不同于普通槽线,双面低阻槽线是由金属化过孔连接介质基板两侧的槽线,相对于普通槽线,在同样的特性阻抗情况下,双面低阻槽线的缝隙比普通槽线要大得多。双面共面波导也是通过金属化过孔把介质基板两侧的共面波导连接起来,这样,同样大小的特性阻抗,双面共面波导导带与接地面之间的缝隙比普通共面波导要大得多。因此双面低阻槽线共面波导功率分配器具有较大的功率容量和工艺容差,两者都要大于普通槽线或者共面波导结构的功率分配器。仿真和测试结果表明,所提出的双面低阻槽线共面波导功率分配器工作在0.48~1.58 GHz,附加插入损耗是0.3 dB,功率不平衡度小于0.1 dB,相位不平衡度优于0.35°,三个端口的驻波均低于-10 d B,隔离度优于10 dB。

英文摘要：

It proposes a power divider based on dual sided low impedance slotline and coplanar waveguide. A dual si- ded coplanar waveguide is used at the input section, while a dual sided low impedance slotline is used at the output section. The dual sided low impedance slotline is composed of a bilateral slotline and two metalized via arrays aligned at the slot ed- ges. The copper layers on the both sides of the substrate are connected by the metalized aperture array, which is significantly different from traditional slotline. Compared with the traditional slotline, the slot width of the low impedance dual sided slot- line is significantly larger, it has the same value of the impedance. The dual sided coplanar waveguide is also composed of two pairs of coplanar waveguide which are printed on both sides of the substrate and connected by metalized aperture array. Comparing with the traditional coplanar waveguide, the slot width between the center conductor and the ground can be en- larged. Thus, the power capacity and fabrication error are larger than that of the traditional slotline or coplanar waveguide. It is demonstrated that simulated and measured results agree well, and the results show that the proposed power divider has good performance with less than 0.3 dB of additional insertion loss, less than 0.1 dB of amplitude imbalance, less than O. 35~of phase imbalance, more than 10 dB of isolation and the return loss at all three ports are more than 10 dB over the desired fre- quency band from 0.48 - 1.58 GHz.