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Microwave Communication - Engineering

Q1:

Assertion (A): A quarter wave transformer is used to match a resistive load to a transmission line. Reason (R): A quarter wave transformer is a transmission line of quarter wave length.

A Both A and R are correct and R is correct explanation of A

B Both A and R are correct but R is not correct explanation of A

C A is correct but R is wrong

D A is wrong but R is correct

ANS:B - Both A and R are correct but R is not correct explanation of A

A line of length is called quarter wavelength line. Such a line is used for impedance matching. If A quarter wave line can match a source impedance Zin with load impedance ZL by selecting a proper value of Z0 so as to satisfy equation. Such a line is also called transformer.