RF combiners and dividers, also known as combiners and splitters, are multi-port devices and modules that combine or split RF signals between a single port and the other ports.

RF power combiners and RF splitters are the same items. The same circuits can be used to combine and split RF power, the only difference is that RF power is applied to one port and extracted from the other.

In the RF splitter, and for the RF combiner, power is applied in the opposite direction.

The RF power splitters and combiners are used to split a single RF line into more than one line and divide the power.

The combiners are used to combine more than one feed line into a single one.