Conversions between electric field strength (E), magnetic field strength (H) and power density (S).
Conversions between electric field strength (E), magnetic field strength (H) and power density (S).
Enter the frequency f, the gain G and one value (either pr, Pr, E, H or S) and click the "Convert" button next to it to compute the four other values.
En electromagnetic filed with a power density of S [W/m2] in its far field region is received by an antenna of gain G [dB] and a certain power Pr [W] is measured on the antenna connector. The losses of the antenna and of the cable can be taken into account with an appropriate antenna gain G. The antenna impedance has to be matched with the cable and the receiver.
Bibliography:C.-A. Balanis, Antenna theory, analysis and design Wiley, 1997, chapter 2. |
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