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reflectorCorner

Create corner reflector-backed antenna

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Description

Use the default reflectorCorner object to create a corner reflector-backed antenna resonating around 886.16 MHz. By default, the exciter antenna is a dipole. The feed point of the dipole is at the origin.

Creation

Syntax

rc = reflectorCorner
rc = reflectorCorner(Name=Value)

Description

rc = reflectorCorner creates a corner reflector backed dipole antenna with default property values. The default dimensions are chosen for an operating frequency of around 886.16 MHz.

example

rc = reflectorCorner(Name=Value) sets properties using 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.

For example, rc = 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 either:

  • Antenna object from the catalog (except reflector type, cavity type and platform-installed antennas)

  • Array object from the catalog (except conformal and infinite arrays)

  • Custom antennas: customAntennaGeometry, customAntennaMesh, customAntenna

  • Empty array

To create the reflector backing structure without an exciter, specify this property as an empty array.

Example: horn

Example: linearArray(Element=patchMicrostrip)

Example: customAntenna

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

axialRatioCalculate and plot axial ratio of antenna or array
bandwidthCalculate and plot absolute bandwidth of antenna or array
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
efficiencyCalculate and plot radiation efficiency of antenna or array
EHfieldsElectric and magnetic fields of antennas or embedded electric and magnetic fields of antenna element in arrays
feedCurrentCalculate current at feed for antenna or array
impedanceCalculate and plot input impedance of antenna or scan impedance of array
infoDisplay information about antenna, array, or platform
memoryEstimateEstimate memory required to solve antenna or array mesh
meshMesh properties of metal, dielectric antenna, or array structure
meshconfigChange meshing mode of antenna, array, custom antenna, custom array, or custom geometry
msiwriteWrite antenna or array analysis data to MSI planet file
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
peakRadiationCalculate and mark maximum radiation points of antenna or array on radiation pattern
rcsCalculate and plot monostatic and bistatic radar cross section (RCS) of platform, antenna, or array
resonantFrequencyCalculate and plot resonant frequency of antenna
returnLossCalculate and plot return loss of antenna or scan return loss of array
showDisplay antenna, array structures, shapes, or platform
sparametersCalculate S-parameters for antenna or array
stlwriteWrite mesh information to STL file
vswrCalculate and plot voltage standing wave ratio (VSWR) of antenna or array element

Examples

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Open Live Script

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 2 axes objects and other objects of type uicontrol. Axes object 1 contains 5 objects of type patch, surface. Hidden axes object 2 contains 18 objects of type surface, line, text, patch.

Open Live Script

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.

Open Live Script

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

See Also

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