Question

If the input impedance of an antenna is (100 + j45) Ω at 500MHz, then

The reflection coefficient of the antenna is approximately:​

Answer 1

Answer:

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Explanation:

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Answer 2

The reflection coefficient of the antenna is ≅7.69-j11.54

Explanation:

Zo =√Zoc Zsc

Zo ² = Zoc Zsc

Zsc = Zo²/Zoc

 = $\frac{50 X 50}{100 + j45}$

 = $\frac{50}{2+j2}$

 =$\frac{50 ( 2-3j)}{4+9}$

= $\frac{100-45j}{13}$

= 7.69-j11.54