Topic: Electromagnetics
A plane wave is characterized by $\overline{E}=(0.5\hat{x}+\hat{y}e^{j\pi/2})e^{j\omega t-jkz}$. The wave is
- A. Linearly Polarized
- B. Circularly Polarized
- C. Unpolarized
- D. Elliptically Polarized
Answer: D. Elliptically Polarized
Explanation: Here $\vec{E}=(0.5\hat{x}+\hat{y}e^{j\pi/2})e^{j\omega t-jkz}$. $E_{x}\ne E_{y}$ but $\phi=\frac{\pi}{2}$. So, it is elliptically polarized wave.