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// chapter 7 example 13
//-----------------------------------------------------------------------------
clc;
clear;
// given data
f = 60*10^6; // frequency in Hz
c = 3*10^8 // velocity of EM wave in m/s
// Calculations
lamda = c/f; // wavelength in m
l_dipole= lamda/2 // length of diplole
// Physical length of antenna is made 5% shorter than desired length as per rule of thumb
L = l_dipole - (5/100)*l_dipole; // actual physical length
L_D = L - (4/100)*L; // length of director
L_R = L + (4/100)*L; // length of reflector
DDS = 0.12*lamda; // director dipole spacing
RDS = 0.2*lamda; // Reflector dipole spacing
// Output
mprintf('Length of dipole = %3.3f m\n length of Director = %3.2f m\n length of Reflector = %3.2f m\n director dipole spacing = %3.1f m\n Reflector dipole spacing = %3.1f m',L,L_D,L_R,DDS,RDS);
//------------------------------------------------------------------------------
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