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2.13 Consider a dielectric slab having a thickness d= 10 mm and index of refraction n¡ = 1.50. Let the medium above and below the slab be air, in which n, = 1. Let the wavelength be 1 = 10 mm (equal to the thickness of the waveguide). (a) What is the critical angle for the slab waveguide? (b) Solve Eq. (2.26b) graphically to show that there are three angles of incidence that satisfy this equation. (c) What happens to the number of angles as the wavelength is decreased?

2.13 Consider a dielectric slab having a thickness d= 10 mm and index of refraction n¡ = 1.50. Let the medium above and below the slab be air, in which n, = 1. Let the wavelength be 1 = 10 mm (equal to the thickness of the waveguide). (a) What is the critical angle for the slab waveguide? (b) Solve Eq. (2.26b) graphically to show that there are three angles of incidence that satisfy this equation. (c) What happens to the number of angles as the wavelength is decreased?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Eq 2.2: Ex(2,t)=Re(È) = E, Eox cos (wt tkz)=È„Ex Eq 2.3: Ey(z,t)=èyEoycos (wt-Kz+5)=èyEy Eq 2.8: tan2x = 2Eox Eoycos 8 %3D 2 -
Transcribed Image Text:Eq 2.2: Ex(2,t)=Re(È) = E, Eox cos (wt tkz)=È„Ex Eq 2.3: Ey(z,t)=èyEoycos (wt-Kz+5)=èyEy Eq 2.8: tan2x = 2Eox Eoycos 8 %3D 2 -
2.13 Consider a dielectric slab having a thickness d= 10 mm and index of refraction n = 1.50. Let the medium above and below the slab be air, in which n, = 1. Let the wavelength be 1 = 10 mm (equal to the thickness of the waveguide). (a) What is the critical angle for the slab waveguide? (b) Solve Eq. (2.26b) graphically to show that there are three angles of incidence that satisfy this equation. (c) What happens to the number of angles as the wavelength is decreased?
Transcribed Image Text:2.13 Consider a dielectric slab having a thickness d= 10 mm and index of refraction n = 1.50. Let the medium above and below the slab be air, in which n, = 1. Let the wavelength be 1 = 10 mm (equal to the thickness of the waveguide). (a) What is the critical angle for the slab waveguide? (b) Solve Eq. (2.26b) graphically to show that there are three angles of incidence that satisfy this equation. (c) What happens to the number of angles as the wavelength is decreased?
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