Fields and Waves. Lesson 5.2. PLANE WAVE PROPAGATION Lossless Media. Time Harmonic Fields. EM wave propagation involves electric and magnetic fields having more than one component, each dependent on all three coordinates, in addition to time. . e.g. Electric field. vector phasor.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
PLANE WAVE PROPAGATION
Lale T. Ergene
EM wave propagation involves electric and magnetic fields having more than one component, each dependent on all three coordinates, in addition to time.
e.g. Electric field
Valid for the other fields and their sources
For lossless medium σ=0 ε’’=0 εc =ε’=ε
Homogenous wave equation for
There are three constitutive parameters of the medium: σ, ε, μ
If the medium is nonconducting σ=0 α=0 LOSSLESS
(for a lossless medium)
Direction of propagation
Spatial variation of and at t=0
The Electric Field in phasor form (only x component)
General solution of the differential equation
In general, a uniform plane wave traveling in the +z direction, may have x and y components
The relationship between them
Do Problem 1
If the medium is vacuum : up=3x108 [m/s], ηc=377 [Ω]
Do Problem 2
is along the propagation direction of the wave
Average power density of the wave
Do Problem 3