The curve of S14 for a branch-line coupler is similar to that of the S – McqOptions

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1.	The curve of S14 for a branch-line coupler is similar to that of the S11 curve of the branch-line coupler.
A.	True
B.	False
Answer» B. False

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S12 and S13 curves for branch-line couplers are almost a straight line parallel to X axis. Both the curves are similar and follow same path.
The curve of S14 for a branch-line coupler is similar to that of the S11 curve of the branch-line coupler.
A 50 branch-line Quadrature hybrid has to be designed to operate over a range of frequencies. The branch-line impedance of this coupler so designed is:
The S matrix of a Quadrature hybrid is of size 4 4 and the diagonal elements of a matched coupler are all: