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//Chapter 2: Antenna Basics
//Example 2-11.1
clc;
//Variable Initialization
P_t = 15 //Transmitter power (W)
A_et = 2.5 //Effective aperture of transmitter (meter^2)
A_er = 0.5 //Effective aperture of receiver (meter^2)
r = 15e3 //Distance between the antennas (Line of sight) (m)
frequency = 5e9 //Frequency (Hz)
c = 3e8 //Speed of light (m/s)
//Calculation
wave_len = c/frequency //Wavelength (m)
P_r = (P_t*A_et*A_er)/((r**2)*(wave_len**2)) //Received power (W)
//Result
mprintf("The power delivered to the receiver is %.2e watts",P_r)
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