2863/CH2/EX2.26/ex2_26.sce


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//chapter 2
//half wave dipole
printf("\n");
dl=1/15;//assume lamda=1;
Rloss=1.5;
Rrad=80*(%pi)^2*(1/15)^2;
n=Rrad/(Rrad+Rloss);
printf("the radiation efficiency is %g",n);