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// Chapter 3 example 14
//------------------------------------------------------------------------------
clc;
clear;
// Given data
a = 30; // width of waveguide
b = 20; // narrow dimension of waveguide
c = 3*10^8; // velocity of EM wave in m/s
m = 1; // for TE10
n = 0; // for TE10
// Calculations
// lamda0 = 2/sqrt((m/a)^2 + (n/b)^2)
lamda0 = (2*a)/m; // longest cut-off wavelength in dominant mode TE10
// Output
mprintf('longest cut-off wavelength = %d mm',lamda0 );
//-------------------------------------------------------------------------------
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