Far-Field Power Density

Far-Field Power Density

RN-02
ASPCSPAdvanced

Formula
W = GP/4πr² = AP/λ²r²
When to Use

Calculate power density in the far-field (Fraunhofer zone) of an antenna.

Symbol Legend
SymbolMeaningUnitNote
WFar-field power densitymW/cm²
GAntenna gainG = 4πA/λ²
PAntenna powermW
rDistance from antennacm
AEffective antenna areacm²

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