[SOLVED] Line impedance calculation of two-stage Wilkinson Divider

[mr_evo]

Hello, dear colleages!
As we know the impedance of quarter wave line in one stage Wilkinson Power Divider (WPD) is equal to sqrt(2)*Z0. But how to calculate the line impedances for two-stage WPD?

Best regards.

 

[sv1437]

Hi, one of the important parameter for multistage wilkinson power divider is the bandwidth (ratio: f2/f1) you want to realize. And impedance of the quarter wave-lines depend on this ratio. For a two-stage WPD, you can realize bandwidth ratio of either 1.5 or 2.

Go through the below paper for more details:
"A class of Broadband three port TEM mode hybrids" by S.B.Cohn

-sv

 

[mr_evo]

sv, thank you. This paper really helped me.