❓ What is the difference between an RF circulator and an RF isolator?

An RF circulator routes signals between multiple ports, while an RF isolator is essentially a two-port device derived from a circulator, designed to allow signal transmission in only one direction..

RF Circulator: Multi-port signal routing
RF Isolator: One-way signal protection

In practical systems, isolators are commonly used to protect sensitive RF components from reflected power, while circulators are used for signal distribution and duplexing.