ECE :: Electromagnetic Field Thoery
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When a plane wave travelling in free space is incident normally on a medium having εr = 4.0, then fraction of power transmitted into the medium is given by
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Surface impedance at high frequencies is a consideration for
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The unit of displacement density is
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When microwave signals follow the curvature of the earth, this is known as
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The attenuation factor a and phase shift factor β for a wave propagated in a good dielectric having
are given by -
Consider isotropic radiator radiating a power of 1 watt. At a distance of 1 metre, the power per unit area with equal
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Cassegrain feed is used with a parabolic reflection to
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