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bos1234
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This is not a connection. I just want ot know how they dervied this formula from gain
Consider a geosynchronous satellite whose global beam covers all of the visible Earth's surface. The radius of the Earth is about 6400km, and the altitude of the satellite is 36,000km.
How would you work out the gain of the satellite?
Book has :Satellite antenna gain, relative to the isotropic antenna situation, is equivalent to the inverse ratio of the cross-secitonal area of the Earth to the surface area of a sphere at 36,000km, assuming 100% effeciency.
Solution has [tex]\frac{4pi R^2}{pi R^2}[/tex]
numerator is for satellite and denominator is for earth
Consider a geosynchronous satellite whose global beam covers all of the visible Earth's surface. The radius of the Earth is about 6400km, and the altitude of the satellite is 36,000km.
How would you work out the gain of the satellite?
Book has :Satellite antenna gain, relative to the isotropic antenna situation, is equivalent to the inverse ratio of the cross-secitonal area of the Earth to the surface area of a sphere at 36,000km, assuming 100% effeciency.
Solution has [tex]\frac{4pi R^2}{pi R^2}[/tex]
numerator is for satellite and denominator is for earth
The Attempt at a Solution
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