Topic: Microwave Engineering
3-port circulator is
- A. reciprocal, matched
- B. non reciprocal, unmatched
- C. non reciprocal, matched
- D. reciprocal, unmatched
Answer: C. non reciprocal, matched
Explanation: A circulator is a passive non-reciprocal three or 4 port device, in which a microwave or radio frequency entering any port is transmitted to the next port in rotation only. Thus, it is perfectly matched and non reciprocal.