It is required to match a 200 load to a 450 transmission line. To reduce the SWR along the line to 1, what must be the characteristic impedance of the quarter-wave transformer used for this purpose, if it is connected directly to the load?

• A. 90 k
• B. 300 k
• C. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/8-05-81-3.png">
• D. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/8-05-81-4.png">