%% Patch Antenna Using Three Dielectric Substrates.
% Create a patch antenna using the following substrates: FR4 of thickness 2 mm, Teflon if thickness 4mm, and Foam of thickness 1 mm. Use DielectricCatalog to find the relative permittivity and loss tangent of the specified dielectrics.

sub = dielectric('Name',{'FR4','Teflon','Foam'},...
    'Thickness',[.002 .004 .001],'EpsilonR',[4.8 2.1 1.03],...
    'LossTangent',[0.0260 2e-4 1.5e-4])
p = patchMicrostrip('Substrate',sub)
show(p)

% Copyright 2012 The MathWorks, Inc.