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//Chapter-11 example 54
//=============================================================================
clc;
clear;
//input data
f = 10*10^9; // operating freq. of radar in Hz
Vo = 3*10^8; //vel of Em wave in m/s;
D = 5; //Diameter of antenna in m
//calculations
lamda = Vo/f; // wavelength in m
BW = 70*(lamda/D) // BeamWidth in degrees
//output
mprintf('Beamwidth = %3.3f degrees',BW);
//==============================================================================
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