450fall09hw7 - ECE 450 Homework 7 Due: Tue, Oct 13, 2009, 5...

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Unformatted text preview: ECE 450 Homework 7 Due: Tue, Oct 13, 2009, 5 PM 1. A uniform, time-harmonic plane wave propagating in air is impinging upon a planar air-dielectric interface. The angle of incidence with respect to the normal to the interface is 45 o . The frequency of the wave is 300 MHz. The electric field of the incident wave is linearly polarized, perpendicular to the plane of incidence. The magnetic permeability of the dielectric is that of free space. Given that the reflection coefficient is 1- √ 2 3 , calculate the following: a) The relative perimittivity of the dielectric. b) The angle of transmission (with respect to the normal) in the dielectric. c) The transmission coefficient. d) The time-average power density of the transmitted plane wave in the dielectric. 2. A uniform, time-harmonic plane wave propagating in air encounters a planar boundary of a dielectric half space of magnetic permeability that of free space and electric perimittivity 4 ε . The operating frequency is 100 MHz. Given that the reflection coefficient is zero, answer the following questions.frequency is 100 MHz....
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This note was uploaded on 02/22/2010 for the course ECE 450 taught by Professor Franke during the Fall '09 term at University of Illinois at Urbana–Champaign.

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450fall09hw7 - ECE 450 Homework 7 Due: Tue, Oct 13, 2009, 5...

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