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Microwave Communication - Engineering

Q1:

Consider the following statements about hybrid ring
  1. Ports 1 and 2 are decoupled.
  2. Port 3 and 4 are coupled.
  3. A signal entering either port 1 or 2 splits equally between ports 3 and 4.
  4. A signal entering either port 3 or 4 splits equally between ports 1 and 2.
Which of the above are correct?

A 1, 2, 3 and 4

B 1, 3 and 4

C 1 and 2

D 2, 3 and 4

ANS:B - 1, 3 and 4

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