antenna.Ellipse

Create ellipse centered at origin on xy-plane

Since R2020a

Description

Use the antenna.Ellipse object to create an ellipse centered at the origin on the xy-plane. You can use antenna.Ellipse to create single-layer or multi-layered antennas using pcbStack.

Creation

Syntax

ellipse = antenna.Ellipse

ellipse = antenna.Ellipse(Name=Value)

Description

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

ellipse = antenna.Ellipse(Name=Value) creates an ellipse, with additional properties specified by one or more name-value arguments. Name is the property name and Value is the corresponding value. You can specify several name-value arguments in any order as Name1=Value1, ..., NameN=ValueN. Properties that you do not specify retain their default values.

Properties

Name — Name of ellipse

"myEllipse" (default) | string

Name of ellipse, specified as a string.

Example: "ellipse1"

Data Types: string

Center — Cartesian coordinates of ellipse center

[0 0] (default) | 2-element vector

Cartesian coordinates of center of ellipse, specified as a 2-element vector in meters.

Example: [0.006 0.006]

Data Types: double

Major axis — Major axis of ellipse

1 (default) | scalar

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

Example: 2

Data Types: double

Minor axis — Minor axis of ellipse

0.5 (default) | scalar

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

Example: 0.9

Data Types: double

NumPoints — Number of discretization points on circumference

30 (default) | scalar

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

Example: 28

Data Types: double

Object Functions

add	Boolean unite operation on two shapes
subtract	Boolean subtraction operation on two shapes
intersect	Intersection of shape1 and shape2
plus	Join two shapes
minus	Carve a shape from other shape
and	Boolean intersection operation on two shapes
area	Calculate area of 2-D shapes in square meters
show	Display antenna, array structures, shapes, or platform
plot	Plot boundary of 2-D shape
mesh	Mesh properties of metal, dielectric antenna, or array structure
rotate	Rotate shape about axis by angle
rotateX	Rotate shape about x-axis by angle
rotateY	Rotate shape about y-axis by angle
rotateZ	Rotate shape about z-axis by angle
translate	Move shape to new location
scale	Change size of shape by fixed factor
mirrorX	Mirror shape along x-axis
mirrorY	Mirror shape along y-axis
removeHoles	Remove holes from shape
removeSlivers	Remove sliver outliers from boundary of shape

Examples

Create an Ellipse with Default Properties

Create ellipse using antenna.Ellipse object.

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)

Create an Ellipse with Specified Properties

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) 

Subtract Two Shapes

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)

Version History

Introduced in R2020a