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+// Chapter 3 example 9
+//------------------------------------------------------------------------------
+clc;
+clear;
+// Given data
+VSWR    = 3;        // voltage standing wave ratio
+d       = 20*10^-2  // separation b/w 2 successive minimas
+er      = 2.25;     // dielectric constant
+v       = 3*10^8;   // velocity in m/s
+
+// Calculations
+// VSWR = (1 + p)/(1 - p)
+p       = (VSWR -1)/(VSWR + 1);     // reflection co-efficient
+lamda   = 2*d;                      // wavelength of tx line
+lamda_fr= lamda*sqrt(er);           // free space wavelength
+f       = v/lamda_fr;               // operating frequency in Hz
+
+// output
+mprintf('Magnitude of Reflection Co-efficient = %3.1f\n Frequency of Operation = %3.0f Mhz',p,f/10^6);
+//------------------------------------------------------------------------------