双面低阻槽线共面波导混合功率分配器

发布时间：2018-08-23 15:38

【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 dB,隔离度优于10 dB。
[Abstract]:In this paper, a coplanar waveguide power divider with double side low resistance slot line is proposed, in which the two side coplanar waveguide is used at the input and the low resistance slot line is used in the output. Different from the common slot line, the double-side low-resistance slot line is connected by metallization through the hole to the slot line on both sides of the dielectric substrate. Compared with the ordinary slot line, the gap of the double-side low-resistance slot line is much larger than that of the ordinary slot line under the same characteristic impedance. The coplanar waveguide on both sides of the dielectric substrate is also connected through metallized holes, so that the gap between the conduction band of the double-sided coplanar waveguide and the ground is much larger than that of the common coplanar waveguide for the same size characteristic impedance. Therefore, the power divider of coplanar waveguide with double-side low-resistance slot line has large power capacity and technological tolerance, both of which are larger than those of common slot line or coplanar waveguide structure. Simulation and test results show that, The proposed coplanar waveguide power divider works at 0.48 nm 1.58 GHz, the additional insertion loss is 0.3 dB, the power imbalance is less than 0.1 dB, the phase unbalance is less than 0.35 掳, the standing wave of the three ports is less than -10 dB, and the isolation is better than 10 dB.
【作者单位】：东南大学信息科学与工程学院;
【基金】：国家自然科学基金(61427801)
【分类号】：TN626

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