What is difference between RF circulator and isolator?

Submitted by: Muhammad
RF circulator is a 3 port device and isolator is a 2 port device. Both allow signal to flow in any one direction and prevents signal going into the other direction as per design. RF circulator being having 3 ports, there are two main types clockwise and anticlockwise. If ports are say P1, P2 and P3 then isolator can pass signal from P1 to P2, P2 to P3 and from P3 to P1 and not in other direction if designed so otherwise it will pass signal from P3 to P2 and P2 to P1 and from P1 to P3.
Submitted by: Muhammad

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