Question

Define a four-input power combiner as a five terminal device that adds the power at the four inputs, P1, P2, P3, and P4 to yield Pout. Determine Pout in dBm for the following set of input powers and dBm's

a) P1 = P2 = 10 dBm, P3=13 dBm, P4=16 dBm (assume P1-P4 are uncorrelated signals)

b) P1 = P2 = P3= 10 mW and P3=13 dBm (assume P1-P4 are coherent and in-phase signals)

Define each variable.

Answer 1