antenna effective area


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antenna effective area

[an′ten·ə i′fek·tiv ′er·ē·ə]
(electromagnetism)
In any specified direction, the square of the wavelength multiplied by the power gain (or directive gain) in that direction, and divided by 4π.
References in periodicals archive ?
As an aside to help you understand why antennas are such a problem on "stealth" platforms: If you replace P2 - P1 with antenna gain (in dB) and s with antenna effective area (in [m.