一种带状线定向耦合器场分布的求解
Solution of field distribution in stripline directional coupler
-
摘要: 通过两次利用Schwarz-Christoffel 变换函数，先把理想的带状线变换到实轴上，然后再变换成为平板电容器，得到与两次变换过程相对应的两个变换函数，从而根据复合函数的性质，求出波导-带状线-同轴线型定向耦合器中的场分布。再根据小孔耦合理论，导出了耦合度、方向性的计算公式。最后对耦合度的理论计算结果与实际测试数据进行了对比，两者仅相差1.04 dB，吻合得很好。Abstract: In design of the waveguide-stripline-coaxial line directional coupler, the solution of the field distribution in the stripline is essential. Using the Schwarz-Christoffel transformation function, the perfect stripline is transformed into a parallel-plate capacitor, and the field distribution in the stripline is derived. The coupling coefficient, directivity and the relationships between coupling coefficient and geometric dimension are obtained by the coupling theory of small hole. The comparison between the calculated coupling coefficient and the measured one of couplers manufactured by us shows little difference as 1.04 dB.
-
点击查看大图
计量
- 文章访问数: 2380
- HTML全文浏览量: 270
- PDF下载量: 604
- 被引次数: 0
下载:
