Reactive near-field, Radiating near-field, Far-field regions

Input

Frequency \(\nu \)
Wavelength \(\lambda \)
Largest Dimension of Antenna \( D\)


Output

Reactive Near Field \(\leq\) ____
Radiating Near Field \(\leq\) ____
Far Field \(\geq\) ____

Formula

\(Reactive\, Near\, Field \leq 0.62\sqrt{ \frac{D^3 }{\lambda }}\)

\(Radiating\, Near\, Field \leq 2\frac{D^2}{\lambda}\)

\( Far\, Field \geq 2\frac{D^2}{\lambda}\)

Where:
\(\nu \) = Frequency
\(\lambda \) = Wavelength
\(D\) = Largest Dimension of Antenna

Other Related Calculator:
- Dipole Antenna Length Calculator \ Radiation Pattern

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