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Interdigital Capacitor - Visualize and Analyze

This example shows you how to create, visualize, and analyze an interdigital capacitor.

Create an interdigital capacitor with default properties.

capacitor = interdigitalCapacitor
capacitor = 
  interdigitalCapacitor with properties:

            NumFingers: 4
          FingerLength: 0.0137
           FingerWidth: 3.1600e-04
         FingerSpacing: 3.0000e-04
         FingerEdgeGap: 3.4100e-04
    TerminalStripWidth: 5.0000e-04
         PortLineWidth: 0.0019
        PortLineLength: 0.0030
                Height: 7.8700e-04
      GroundPlaneWidth: 0.0030
             Substrate: [1x1 dielectric]
             Conductor: [1x1 metal]
            IsShielded: 0

View the capacitor.


Plot the charge distribution at 5 GHz.

charge(capacitor, 5e9)

Plot the current distribution at 5 GHz.

current(capacitor, 5e9)

Calculate and plot the s-parameters.

spar = sparameters(capacitor,linspace(1e9,10e9,30));