Model Infinite Ground Plane for Unbalanced Antennas

Open Live Script

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 microstrip patch antenna with infinite ground plane.

figure
show(p);

Figure contains an axes object. The axes object with title patchMicrostrip over infinite ground plane, xlabel x (mm), ylabel y (mm) 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 1.60GHz to 1.70GHz.

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

Figure contains an axes object. The axes object with title Impedance, xlabel Frequency (GHz), ylabel Impedance (ohms) 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 2 axes objects and other objects of type uicontrol. Axes object 1 contains 5 objects of type patch, surface. This object represents infinite ground. Hidden axes object 2 contains 17 objects of type surface, line, text, patch. This object represents infinite ground.

Visualize Antenna Mesh

View the meshed microstrip patch antenna.

figure
mesh(p);

Figure contains an axes object and an object of type uicontrol. The axes object with title Metal mesh, xlabel x (m), ylabel y (m) contains 2 objects of type patch, surface. These objects represent PEC, feed.