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Una antena directiva emite una potencia isotrpica efectiva (PIRE) de 1.1 kw cuando se alimenta en sus terminales con 90 w y su resistencia de
Una antena directiva emite una potencia isotrpica efectiva (PIRE) de 1.1 kw cuando se alimenta en sus terminales con 90 w y su resistencia de radiacin es de 74 ohms a resonancia. La corriente medida en la antena es de 1.008 A. Calcular:
a La eficiencia de la antena.
- La resistencia de prdidas de la antena
- La ganancia de la antena en la direccin de mxima radiacin (db).
A directional antenna emits an effective isotropic power (EIRP) of 1.1 kW when it is fed at its terminals with 90 W and its radiation resistance is 74 ohms at resonance. The current measured in the antenna is 1.008 A. Calculate:
a The efficiency of the antenna.
b) The loss resistance of the antenna
c) The gain of the antenna in the direction of maximum radiation (db).
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