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Model Infinite Ground Plane for Unbalanced Antennas

This example shows how to model an infinite ground plane and calculate fundamental antenna parameters for unbalanced antennas.

Create Antenna on Infinite Ground Plane

Create a patch microstrip antenna on a ground plane of infinite length.

p = patchMicrostrip('GroundPlaneLength', inf)
p = 
  patchMicrostrip with properties:

               Length: 0.0750
                Width: 0.0375
               Height: 0.0060
            Substrate: [1x1 dielectric]
    GroundPlaneLength: Inf
     GroundPlaneWidth: 0.0750
    PatchCenterOffset: [0 0]
           FeedOffset: [-0.0187 0]
            Conductor: [1x1 metal]
                 Tilt: 0
             TiltAxis: [1 0 0]
                 Load: [1x1 lumpedElement]

View Antenna Geometry

View the physical construction of the patch microstrip antenna using infinite ground plane.

figure;
show(p);

Figure contains an axes object. The axes object with title patchMicrostrip over infinite ground plane contains 5 objects of type patch, surface. These objects represent PEC, feed, infinite ground.

Calculate Impedance of Antenna

Calculate the impedance of the antenna over a frequency range of 1.60 GHz to 1.70 GHz.

figure;
impedance(p,1.60e9:5e6:1.70e9);

Figure contains an axes object. The axes object with title Impedance contains 2 objects of type line. These objects represent Resistance, Reactance.

Plot Radiation Pattern of Antenna

Plot the radiation pattern of the antenna at a frequency of 1.67 GHz.

figure;
pattern(p,1.67e9);

Figure contains an axes object and other objects of type uicontrol. The axes object contains 5 objects of type patch, surface. This object represents infinite ground.

Visualize Antenna Mesh

Mesh and view the infinite ground plane patch microstrip antenna.

figure; 
mesh(p);

Figure contains an axes object and other objects of type uicontrol. The axes object with title Metal mesh contains 2 objects of type patch, surface.

See Also