Topic: Electromagnetics
Impedance characteristics on a Smith Chart repeat after a distance of
- A. $\lambda$
- B. $\lambda/4$
- C. $\lambda/2$
- D. None of the above
Answer: C. $\lambda/2$
Explanation: On a transmission line, the impedance pattern (including maxima and minima of the standing wave) repeats every half wavelength ($\lambda/2$). Therefore, one full rotation around the Smith chart corresponds to a physical distance of $\lambda/2$.