addSubstrate

Create metal-dielectric shape

Since R2023b

Syntax

customShape = addSubstrate(metalShape,substrateShape)

Description

customShape = addSubstrate(metalShape,substrateShape) adds the dielectric substrateShape to the metal metalShape and returns a shape.Custom3D metal-dielectric shape object.

Examples

Create Patch Antenna with FR4 Substrate

This example shows how to add substrate to custom shapes and create a custom antenna.

Create and view the ground layer for patch antenna.

gnd = shape.Rectangle(Length=0.15,Width=0.075);
show(gnd)

Create a box shaped FR4 dielectric material to use as the substrate layer.

substratebox = shape.Box(Length=0.15,Width=0.075,Height=0.006,Dielectric="FR4");
translate(substratebox,[0 0 substratebox.Height/2]);

Create a rectangular patch to use as the metal layer.

patch = shape.Rectangle(Length=0.075,Width=0.0375);
translate(patch,[0 0 0.006]);

Create rectangular strip to use as feed.

feed = shape.Rectangle(Length=0.006,Width=0.002);
[~] = rotateY(feed,90);
[~] = translate(feed,[0 0 feed.Length/2]);

Add the metal and ground layers, and add substrate to the shape.

antShape = add(gnd,patch);
antSub = addSubstrate(antShape,substratebox);

Create custom antenna using this custom shape and assign feed to it.

ant = customAntenna(Shape=antSub);
[~] = createFeed(ant,[0 0 0],1,FeedShape=feed);
show(ant)

Input Arguments

metalShape — Pure metal shape

3-D shape object

Pure metal shape, specified as a 3-D shape object.

Example: shape.Box

substrateShape — Pure dielectric shape

3-D shape object

Pure dielectric shape, specified as a 3-D shape object.

Example: shape.Custom3D

Output Arguments

customShape — Shape with metal-dielectric properties

shape.Custom3D object

Shape with metal-dielectric properties, returned as a shape.Custom3D object.

Example: shape.Custom3D

Version History

Introduced in R2023b