Question
Download Solution PDFConsider the following statements regarding impedance matching:
1. The single-stub tuner (matching) consists of an open or shorted section of transmission line of length d connected in parallel with the main line at some distance l from the load.
2. An open-circuited stub radiates some energy at high frequencies.
3. Double-stub matching allows for the adjustment of the load impedance.
4. At very high frequencies, lumped inductances and capacitances can be used as circuit elements.
Which of the above statements correct?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFHere, three statements are correct.
- A single-stub tuner can be open or shorted transmission line connected in parallel to the main transmission line to achieve impedance matching.
- An open-circuited stub can act as a radiator at high frequencies, causing some energy to be radiated.
- Double-stub matching provides a way to adjust the load impedance by adjusting the lengths of two stubs.
Here, option 2 is correct.
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