Читать книгу Introduction To Modern Planar Transmission Lines - Anand K. Verma - Страница 217

In the case of the TE‐polarization, at an incident angle θ₁ = θ_B, i.e. at Brewster angle the reflection coefficient . So from equation (5.2.8c), and also using the Snell's refraction law (5.2.7b), the following expression for Brewster angle is obtained:

(5.3.1)

The above relation applies to a magnetodielectric medium. However, if both media are dielectrics i.e. μ_r1 = μ_r2 = 1 then sin θ_B → ∞. Thus, the Brewster angle does not exist at the interface of two dielectric media. The Brewster angle could exit for the case (b). Such a material is difficult to get in practice. However, the situation is different for the TM‐polarized plane wave.