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Tetrahedral mesh and visualization of the fields associated with
a dual circular patch antenna at resonance.
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The bottom patch is fed by a slot 0.58cm long which is in turn
excited by a microstrip line. The top and bottom patches have a radius
of 0.75cm and 0.65cm respectively. The dielectric layer between the
patches has an er = 1.12 and the substrate of the bottom patch
has er = 3.27. Note that the fields are continuous and
smooth through the two patches. These dual patches have a VSWR<2
between 7.25 - 8.45 GHz.
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Gong, Volakis and Nurnberger UM report 030601-T
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