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//Chapter 15: Antennas for Special Applications
//Example 15-2.1
clc;
//Variable Initialization
frequency = 100e3 //Frequency (Hz)
height = 150 //Height of antenna(m)
RL = 2 //Loss resistance (ohm)
c = 3e8 //Speed of light (m/s)
//Calculations
wave_lt = c/frequency //Wavelength (m)
hp = height/wave_lt //Antenna (physical) height (lambda)
he = hp/2 //Effective height (lambda)
Rr = 400*(hp**2) //Radiation resistance (ohm)
R_E = Rr/(Rr+RL) //Radiation efficiency (unitless)
//Results
mprintf("The Effective height of the antenna is %.3f lambda", he)
mprintf("\nThe Radiation resistance for 150m vertical radiator is %d ohm", Rr)
mprintf("\nThe radiation efficiency is %.2f or %.2f percent", R_E,R_E*100)
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