Читать книгу Introduction To Modern Planar Transmission Lines - Anand K. Verma - Страница 218

In the case of the TM‐polarization, again the reflection is zero, i.e. , at θ₁ = θ_B. Using equation (5.2.16c), and the Snell's refraction law; the Brewster angle is obtained:

(5.3.2)

Unlike the TE polarization, the Brewster angle of the TM‐polarized obliquely incident wave exists even at the interface of the nonmagnetic dielectric medium. Thus, the Brewster angle could be used to separate the TE and TM polarizations from the obliquely incident unpolarized wave at the interface of two dielectric media, as only the TE‐polarized wave component will get reflected. A Brewster angle is also called the polarizing angle.