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reflectorCorner

Create corner reflector-backed antenna

Description

Use the reflectorCorner object to create a corner reflector-backed antenna. By default, the exciter antenna is a dipole. The feed point of the dipole is at the origin. The default dimensions are for an operating frequency of 1 GHz.

Creation

Description

example

cornerreflector = reflectorCorner creates a corner reflector backed dipole antenna for an operating frequency of 1 GHz using default values.

cornerreflector = reflectorCorner(Name=Value) creates a corner reflector antenna, 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 not specified retain their default values.

For example, cornerreflector = reflectorCorner(CornerAngle=45) creates a corner reflector-backed antenna with a corner angle of 45 degrees.

Properties

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Exciter antenna or array type, specified as a single-element antenna object, an array object, or an empty array. Except for reflector and cavity antenna elements, you can use any Antenna Toolbox™ antenna or array element as an exciter. To create the cavity backing structure without the exciter, specify this property as an empty array.

Example: horn

Example: linearArray(Element=patchMicrostrip)

Example: []

Distance between exciter and reflector, specified as a scalar in meters.

Example: 0.0624

Data Types: double

Angle made by corner reflector, specified as a scalar in degrees.

Example: 60

Data Types: double

Reflector length along the x-axis, specified as a scalar in meters. By default, ground plane length is measured along the x-axis. You can also set the GroundPlaneLength to zero.

Example: 0.4000

Data Types: double

Reflector width along the y-axis, specified as a scalar in meters. By default, ground plane width is measured along the y-axis. You can also set the GroundPlaneWidth to zero.

Example: 0.6000

Data Types: double

Type of the metal used as a conductor, specified as a metal material object. You can choose any metal from the MetalCatalog or specify a metal of your choice. For more information, see metal. For more information on metal conductor meshing, see Meshing.

Example: metal("Copper")

Loads added to the antenna feed, specified as a lumped element object. You can add a load anywhere on the surface of the antenna. By default, the load is at the origin. For more information, see lumpedElement.

Example: Load=lumpedelement, where, lumpedelement is the object for the load created using lumpedElement.

Example: lumpedElement(Impedance=75)

Tilt angle of the antenna in degrees, specified as a scalar or vector. For more information, see Rotate Antennas and Arrays.

Example: 90

Example: Tilt=[90 90],TiltAxis=[0 1 0;0 1 1] tilts the antenna at 90 degrees about the two axes defined by the vectors.

Data Types: double

Tilt axis of the antenna, specified as one of these values:

  • Three-element vector of Cartesian coordinates in meters. In this case, each coordinate in the vector starts at the origin and lies along the specified points on the x-, y-, and z-axes.

  • Two points in space, specified as a 2-by-3 matrix corresponding to two three-element vectors of Cartesian coordinates. In this case, the antenna rotates around the line joining the two points.

  • "x", "y", or "z" to describe a rotation about the x-, y-, or z-axis, respectively.

For more information, see Rotate Antennas and Arrays.

Example: [0 1 0]

Example: [0 0 0;0 1 0]

Example: "Z"

Data Types: double | string

Object Functions

showDisplay antenna, array structures, shapes, or platform
axialRatioAxial ratio of antenna
beamwidthBeamwidth of antenna
chargeCharge distribution on antenna or array surface
currentCurrent distribution on antenna or array surface
designDesign prototype antenna or arrays for resonance around specified frequency or create AI-based antenna from antenna catalog objects
efficiencyRadiation efficiency of antenna
EHfieldsElectric and magnetic fields of antennas or embedded electric and magnetic fields of antenna element in arrays
impedanceInput impedance of antenna or scan impedance of array
meshMesh properties of metal, dielectric antenna, or array structure
meshconfigChange meshing mode of antenna, array, custom antenna, custom array, or custom geometry
optimizeOptimize antenna or array using SADEA optimizer
patternPlot radiation pattern and phase of antenna or array or embedded pattern of antenna element in array
patternAzimuthAzimuth plane radiation pattern of antenna or array
patternElevationElevation plane radiation pattern of antenna or array
rcsCalculate and plot radar cross section (RCS) of platform, antenna, or array
returnLossReturn loss of antenna or scan return loss of array
sparametersCalculate S-parameters for antennas and antenna arrays
vswrVoltage standing wave ratio (VSWR) of antenna or array element

Examples

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Create and view a corner reflector-backed dipole.

cornerreflector = reflectorCorner
cornerreflector = 
  reflectorCorner with properties:

              Exciter: [1x1 dipole]
    GroundPlaneLength: 0.2000
     GroundPlaneWidth: 0.4000
          CornerAngle: 90
              Spacing: 0.0750
            Conductor: [1x1 metal]
                 Tilt: 0
             TiltAxis: [1 0 0]
                 Load: [1x1 lumpedElement]

show(cornerreflector)

Figure contains an axes object. The axes object with title reflectorCorner antenna element, xlabel x (mm), ylabel y (mm) contains 5 objects of type patch, surface. These objects represent PEC, feed.

Plot the radiation pattern at 1 GHz.

pattern(cornerreflector,1e9)

Figure contains an axes object and other objects of type uicontrol. The axes object contains 5 objects of type patch, surface.

Create a linear array of inverted-F antennas.

la = linearArray(Element=invertedF,ElementSpacing=0.1);

Create a corner reflector-backed linear array of inverted-F antennas.

ant = reflectorCorner(Exciter=la)
ant = 
  reflectorCorner with properties:

              Exciter: [1x1 linearArray]
    GroundPlaneLength: 0.2000
     GroundPlaneWidth: 0.4000
          CornerAngle: 90
              Spacing: 0.0750
            Conductor: [1x1 metal]
                 Tilt: 0
             TiltAxis: [1 0 0]
                 Load: [1x1 lumpedElement]

show(ant)

Figure contains an axes object. The axes object with title reflectorCorner antenna element, xlabel x (mm), ylabel y (mm) contains 14 objects of type patch, surface. These objects represent PEC, feed.

Create corner reflector-backed log-periodic antenna.

ant = reflectorCorner(Exciter=lpda)
ant = 
  reflectorCorner with properties:

              Exciter: [1x1 lpda]
    GroundPlaneLength: 0.2000
     GroundPlaneWidth: 0.4000
          CornerAngle: 90
              Spacing: 0.0750
            Conductor: [1x1 metal]
                 Tilt: 0
             TiltAxis: [1 0 0]
                 Load: [1x1 lumpedElement]

show(ant)

Figure contains an axes object. The axes object with title reflectorCorner antenna element, xlabel x (mm), ylabel y (mm) contains 7 objects of type patch, surface. These objects represent PEC, feed, FR4.

Version History

Introduced in R2018a