Aperture Antennas Electric Field Calculator

Aperture Antenna Electric Field Calculator

Calculate the electric field at the aperture using:
\[ E = \sqrt{\frac{2\,\eta_0\,P}{A}} \] where \(\eta_0\approx377\,\Omega\), \(P\) is the radiated power (W), and \(A\) is the aperture area (m²).

* Enter the radiated power and the aperture area.

Step 1: Enter Parameters

Example: 100 W

Example: 1 m²

Derived Formula: \( E = \sqrt{\frac{2\,\eta_0\,P}{A}} \) with \(\eta_0\approx377\,\Omega\).


Practical Example:
For \(P=100\,\text{W}\) and \(A=1\,\text{m}^2\), \(E \approx \sqrt{\frac{2\times377\times100}{1}} \approx 274.65\,\text{V/m}\).