%% Three Layer Dielectric Substrate between Patch and Ground Plane
% Create a microstrip patch antenna.

p = patchMicrostrip;

%
% For dielectric properties, use the Dielectric Catalog.

openDielectricCatalog

%
% Use FR4, Teflon and Foam as the three layers of the substrate.

sub = dielectric('Name',{'FR4','Teflon','Foam'},'EpsilonR',...
    [4.80 2.10 1.03],'Thickness',[0.002 0.004 0.001],...
    'LossTangent',[0.0260 2e-04 1.5e-04]);

%
% Add the three layer substrate to the patch antenna.

p.Substrate = sub;
figure
show(p)

%
% Plot the radiation pattern of the antenna.

figure
pattern(p,1.67e9)

% Copyright 2012 The MathWorks, Inc.