antenna.Ellipse

Create ellipse centered at origin on X-Y plane

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Description

Use the antenna.Ellipse object to create an ellipse centered at the origin on the X-Y plane.

Creation

Syntax

ellipse = antenna.Ellipse
ellipse = antenna.Ellipse(Name,Value)

Description

example

ellipse = antenna.Ellipse creates an ellipse centered at the origin on the X-Y plane.

example

ellipse = antenna.Ellipse(Name,Value) sets properties using one or more name-value pair arguments. For example, ellipse = antenna.Ellipse('MajorAxis',2,'Minoraxis',0.800) creates an ellipse with a longest diameter of 2 m and smallest diameter of 0.8 m. Enclose each property name in quotes.

Properties

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Name of ellipse, specified as a character vector.

Example: 'Name','ellipse1'

Example: ellipse.Name= 'ellipse1'

Data Types: char | string

Cartesian coordinates of center of ellipse, specified as a two-element vector with each element measured in meters.

Example: 'Center',[0.006 0.006]

Example: Ellipse.Center= [0.006 0.006]

Data Types: double

Major axis of ellipse, specified as a scalar in meters.

Example: 'MajorAxis',1

Example: ellipse.MajorAxis= 2

Data Types: double

Minor axis of the ellipse, specified as a scalar in meters.

Example: 'MinorAxis',0.9

Example: ellipse.MinorAxis= 0.8

Data Types: double

Number of discretization points on circumference, specified as a scalar.

Example: 'NumPoints',28

Example: ellipse.NumPoints= 60

Data Types: double

Object Functions

addBoolean unite operation on two shapes
subtractBoolean subtraction operation on two shapes
intersectBoolean intersection operation on two shapes
plusShape1 + Shape2
minusShape1 - Shape2
andShape1 & Shape2
areaCalculate area of shape in square meters
showDisplay antenna or array structure; display shape as filled patch
plotPlot boundary of shape
meshMesh properties of metal or dielectric antenna or array structure
rotateRotate shape about axis and angle
rotateXRotate shape about X-axis and angle
rotateYRotate shape about Y-axis and angle
rotateZRotate shape about Z-axis and angle
translateMove shape to new location
scaleChange the size of the shape by a fixed amount
removeHolesRemove holes from shape
removeSliversRemove sliver outliers from boundary of shape

Examples

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Open Live Script

Create ellipse using antenna.Ellipse.

e1 = antenna.Ellipse
e1 = 
  Ellipse with properties:

         Name: 'myEllipse'
       Center: [0 0]
    MajorAxis: 1
    MinorAxis: 0.5000
    NumPoints: 30

View the antenna.Ellipse object using the show function.

show(e1)

Open Live Script

Create an ellipse with major axis of 2 m and a minor axis of 0.8 m.

e2 = antenna.Ellipse('MajorAxis',2,'MinorAxis',0.8)
e2 = 
  Ellipse with properties:

         Name: 'myEllipse'
       Center: [0 0]
    MajorAxis: 2
    MinorAxis: 0.8000
    NumPoints: 30

Create a mesh with a Maximum edge Length of 20 cm.

mesh(e2,'MaxEdgeLength',2e-1)

Open Live Script

Create an ellipse with default properties.

 e3 = antenna.Ellipse;

Create a rectangle with a length of 0.1 m and width of 0.2 m.

 r = antenna.Rectangle('Length',0.1,'Width',0.2);

Subtract the two shapes using the minus operator.

 s = e3-r;

Mesh the subtracted shape with a maximum edge length of 1 m.

 mesh(s,1)

See Also

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Introduced in R2020a

Antenna Toolbox Documentation

Support