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// Exa 10.3
// To calculate gain of antenna.
clc;
clear all;
Pin=12; //Input power in watts
Ploss=3; //resistive losses in Watts
D=5; //Directivity
//solution
Eff=(Pin-Ploss)/Pin;
G=Eff*D;
printf('Gain of the antenna is %.2f dB = %.2f \n',10*log10(G),G);
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