//Page Number: 105 //Example 2.19 clc; //Given c=3D+8; //m/s a=2.29; //cm b=1.02; //cm a1=a/100 ;//m b1=b/100; //m f=6D+9; //Hz e=1; mu=1/(c^2); //Cut off frequency lamc=2*a1; fc=c/lamc; w=2*%pi*fc; //Attenuation constant a=(w*sqrt(1-((f/fc)^2)))/c;; adb=-20*log10(exp(-a)); disp('dB/m',adb,'Attenuation constant:');