SRFS Teleinfra provides the RF Power Splitter, Combiner & Directional Coupler having frequency range 698-4000MHz.
RF Power Splitter is used to divide the input power signal into multiple output signal. 
RF Power Combiner works opposite to RF Power Splitter it is used to combine the multiple power signal into single channel.
Directional coupler as its name defined it always works in single direction. It is 4 port device named as Input port, Output port , Coupled port, Isolated port.