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单词 Directive gain
释义

Directive gain

英语百科

Directivity

(重定向自Directive gain)
Diagram showing directivity

In electromagnetics, directivity is a figure of merit, usually for an antenna. It measures the power density the antenna radiates in the direction of its strongest emission, versus the power density radiated by an ideal isotropic radiator (which emits uniformly in all directions) radiating the same total power.

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