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Figure 7.1: | Atmosphere as guiding structure for radio waves.
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Figure 7.2: | A guided wave in a coaxial transmission line.
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Figure 7.3: | Spherical wavefronts.
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Figure 7.4: | A transverse electromagnetic (TEM) wave.
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Figure 7.5: | Spatial variations of E and H.
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Figure 7.6: | The wave (E,H) is equivalent to the sum of two waves.
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Figure 7.7: | Linearly polarized wave traveling in the +z-direction.
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Figure 7.8: | Circularly polarized plane waves propagating in the +z-direction.
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Figure 7.9: | Right-hand circularly polarized wave radiated by a helical antenna.
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Figure 7.10: | Right-hand circularly polarized wave of Example 7-2.
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Figure 7.11: | Polarization ellipse in the x-y plane, with the wave travelling in the +z-direction.
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Figure 7.12: | Polarization states for various combinations of the polarization angles ( , ) for a wave traveling out of the page.
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Figure 7.13: | Attenuation of the magnitude of Ex(z) with distance z.
The skin depth  s is the value of z at which |Ex(z)| / |Ex0| = e -1, or z = s = 1/ .
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Figure 7.14: | Current density J in a conducting wire is (a) uniform across its cross section in the d-c case, but (b) in the a-c case, J is highest along the wire's perimeter.
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Figure 7.15: | Exponential decay of current density Jx(z) with z in a solid conductor.
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Figure 7.16: | The inner conductor of the coaxial cable in (a) is represented in (b) by a planar conductor or width 2 a and depth s, as if its skin has been cut along its length on the bottom side and then unfurled into a planar geometry.
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Figure 7.17: | EM power flow through an aperture.
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Figure 7.18: | Solar radiation intercepted by (a) a spherical surface of radius Rs, and (b) Earth's surface (Example 7-5).
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Figure 7.19: | Imaginary rectangular box of Problems 7.31 and 7.32.
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