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//Chapter-9 example 5
//=============================================================================
clc;
clear;
//input data
F = 6*10^9;//radar operating frequency in hz
Vo = 3*10^8;//velocity of EM wave in m/s
NNBW = 5;//Null to Null beamwidth
//Calculations
lamda = Vo/F;//wavelength
Da = 140*(lamda/NNBW);
HPBW = 70*(lamda/Da);//half power beamwidth in deg
Gp = 6.4*(Da/lamda)^2//gain of parabolic reflector
G = 10*log10(Gp)//gain in dB
//Output
mprintf('Mouth Diameter of paraboloid is %g m\n HPBW of parabolic reflector is %g degrees\n',Da,HPBW);
mprintf(' Gain of parabolic reflector is %g dB\n Gain of parabolic reflector is %g ',G,Gp);
//=============end of the program==============================================
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