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+//Page Number: 43
+//Example 1.18
+clc;
+//Given
+er=2.2;
+n0=377;//ohm
+n2=n0/sqrt(er);//ohm
+n1=377;//ohm
+
+//Reflection coefficient
+t=(n2-n1)/(n2+n1);
+disp(t,'Reflection coefficient:');
+
+//Vswr
+//Taking mod of reflection coefficient
+t1=-t;
+p=(1+t1)/(1-t1);
+disp(p,'VSWR:');