The Mobile Radio Propagation Channel P2

Chia sẻ: Khinh Kha Kha | Ngày: | Loại File: PDF | Số trang:20

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The Mobile Radio Propagation Channel P2

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So, given PT and G it is possible to calculate the power density at any point in the far ®eld that lies in the direction of maximum radiation. A knowledge of the radiation pattern is necessary to determine the power density at other points. The power gain is unity for an isotropic antenna, i.e. one which radiates uniformly in all directions, and an alternative de®nition of power gain is therefore the ratio of power density, from the speci®ed antenna, at a given distance in the direction of maximum radiation, to the power density at the same point, from an isotropic...

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