Error using vertcat (dimension of matrices concatenated are not consistent)

Hi, I am currently facing an error as below, please try to help and guide me through!

Thank you! :)

'Error using vertcat Dimensions of matrices being concatenated are not consistent.

Error in combline_design_example_plot_try4 (line 106) Ttemp = [1 0;Z0 1];'

      f = 0:0.001:30;                 % Range of the frequency in GHz 
      w = 0:(2*pi*0.001):(2*pi*30);   % Range of w = 2*pi*f.

      l=50*3*10^8/(fo*10^9);
      alpha_c=0.005;
      beta_c=2*pi*f/3*10^8;

      theta = theta0*(w./wo);
      %For Z0 & Z01
      Z0 = -j./(Zr(1)*tan(theta));
      Ttemp = [1 0; Z0 1];
      Z01 = j*Zrr1(1)*tan(theta);
      Tg = [1 Z01; 0 1];
      Tneww = Ttemp*Tg;
      T = Tneww;

Answer 1

[Adam]

z0 is an array of values because w is an array of values.

So it is not a scalar and cannot therefore be concatenated as:

Ttemp = [1 0; Z0 1];

Use the debugger to easily find things like this with a breakpoint on the relevant line or using the 'Stop on errors' option.

Answer 2

[Brendan Hamm]

Yes. theta is a vector and so therefore Z0 is a vector of the same length. Then the error line:

Ttemp = [1 0; Z0 1];

is trying to place an entire vector in the 2nd row of a matrix with only 2 columns. Perhaps you meant

theta(j) ?