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//Chapter-9 example 10
//=============================================================================
clc;
clear;
//input data
F = 10*10^9;//radar operating frequency in hz
Vo = 3*10^8;//velocity of EM wave in m/s
Da = 5;//antenna diameter in m
//Calculations
lamda = Vo/F;//wavelength
Gp = 6.4*(Da/lamda)^2//gain of parabolic reflector
G = 10*log10(Gp)//gain in dB
BWFN = 140*(lamda/Da);//beam width b/n nulls
HPBW = 70*(lamda/Da);//half power beamwidth in deg
//Output
mprintf('BWFN of parabolic reflector is %g degrees\n HPBW of parabolic reflector is %g degrees\n',BWFN,HPBW);
mprintf(' Gain of parabolic reflector is %g dB ',G);
//=============end of the program==============================================
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