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//Chapter 5: Point Source and Their Arrays
//Example 5-21.1
clc;
//Variable Initialization
a = 25 //Height of vertical conducting wall (m)
r = 100 //Distance to the receiver (m)
wave_lt = 10e-2 //Transmitter dimension (m)
//Calculation
k = sqrt(2/(r*wave_lt)) //Constant (unitless)
S_av = (r*wave_lt)/(4*(%pi**2)*(a**2)) //Relative signal level (unitless)
S_av_db = 10*log10(S_av) //Signal level (in db)
//Result
mprintf("The signal level at the receiver is %.5f or %.0f dB",S_av,S_av_db)
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