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// chapter 4 example 4
//-----------------------------------------------------------------------------
clc;
clear;
// given data
CF = 20; // coupling factor in dB
D = 30; // Directivity in dB
Pin = 10; // input power in dBm
// Calculations
// 10logPi = Pin
Pi = 10^(Pin/10); // power in mW
I = D + CF // isolation in dB
Pc = Pin - CF;
Pcwatts = 10^(Pc/10) // power at coupled port in mW
Piso = Pin - I
Pisowatts = 10^(Piso/10) // Power at isolated port in mW
Po = Pi -(Pcwatts + Pisowatts); // power at o/p port in mW
// Output
mprintf('Power Available at the output port = %3.5f mW',Po);
//------------------------------------------------------------------------------
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