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//Chapter-9 example 11
//=============================================================================
clc;
clear;
//input data
F = 10*10^9;//radar operating frequency in hz
Vo = 3*10^8;//velocity of EM wave in m/s
IE =0.6;//illumination efficiency
Da =12;//diameter of antenna
//Calculations
lamda = Vo/F;//wavelength
Gp = IE*(Da/lamda)^2//gain of parabolic reflector
G = 10*log10(Gp)//gain in dB
//Output
mprintf(' Gain of parabolic reflector is %3.2f dB',G);
//=============end of the program==============================================
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