N-way Resistive Power Splitter

The "star" divider is a simple power splitter composed of equal value resistors connected to one common node. The isolation between outputs is the same as the insertion loss. Each input or output port is perfectly matched if the other ports are terminated with 50Ω.

R = 50Ω*(N-1)/(N+1), where N is the number of outputs.

Insertion Loss between ports = 20*log(1/N)


Example:
2 way splitter
N=2
R=50Ω*1/3=16.7Ω
Loss = 6 dB