antenna.Ellipse

Create ellipse centered at origin on xy-plane

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(PropertyName=Value)

Description

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

ellipse = antenna.Ellipse(PropertyName=Value) sets properties using one or more name–value arguments. PropertyName is the property name and Value is the corresponding value. You can specify several name-value arguments in any order as PropertyName1=Value1,...,PropertyNameN=ValueN. Properties that you do not specify, retain their default values.

For example, ell = antenna.Ellipse(Center=[2 2]) creates an ellipse centered at (2,2).

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	Perform Boolean unite operation on two shapes
subtract	Perform Boolean subtraction operation on two shapes
intersect	Generate and plot intersection of two shapes
plus	Join two shapes
minus	Carve a shape from other shape
and	Perform 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	Generate and view mesh for antennas, arrays, and custom shapes
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 shape boundary

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