Main Content

hornConicalCorrugated

Create conical corrugated-horn antenna

Description

The hornConicalCorrugated object creates a conical corrugated-horn antenna, with grooves covering the inner surface of the cone. These antennas are widely used as feed horns for dish reflector antennas as they have smaller side lobes and low cross-polarization level.

Top, side, and cross-sectional view of a conical corrugated-horn antenna element showing the antenna parameters and the feed location.

Creation

Description

ant = hornConicalCorrugated creates a corrugated conical-horn antenna object with default dimensions for an operating frequency of 9.54 GHz.

example

ant = hornConicalCorrugated(Name,Value) sets properties using one or more name-value pairs. For example, ant = hornConicalCorrugated('Radius',1), creates a conical corrugated-horn antenna with a radius of 1 meter.

Properties

expand all

Radius of the waveguide, specified as a real-valued scalar in meters.

Example: 'Radius',0.760

Example: ant.Radius = 0.760

Data Types: double

Height of the waveguide, specified as a real-valued scalar in meters.

Example: 'WaveguideHeight',0.0340

Example: ant.WaveguideHeight = 0.0340

Data Types: double

Height of the feed, specified as a real-valued scalar in meters.

Example: 'FeedHeight',0.0085

Example: ant.FeedHeight = 0.0085

Data Types: double

Width of the feed, specified as a real-valued scalar in meters.

Example: 'FeedWidth',0.0200

Example: ant.FeedWidth = 0.0200

Data Types: double

Signed distance of the feed along the Y-axis, specified as a real-valued scalar in meters.

Example: 'FeedOffset',0.03627

Example: ant.FeedOffset = 0.3627

Data Types: double

Height of the cone, specified as a real-valued scalar in meters.

Example: 'ConeHeight',0.0540

Example: ant.ConeHeight = 0.0540

Data Types: double

Radius of the cone aperture, specified as a real-valued scalar in meters.

Example: 'ApertureRadius',0.0560

Example: ant.ApertureRadius = 0.0790

Data Types: double

Distance between two successive corrugations, specified as a real-valued scalar in meters.

Example: 'Pitch',0.0060

Example: ant.Pitch = 0.0090

Data Types: double

Distance of first corrugation from waveguide, specified as a real-valued scalar in meters.

Example: 'FirstCorrugatedDistance',0.0360

Example: ant.FirstCorrugatedDistance = 0.0190

Data Types: double

Corrugation width, specified as a real-valued scalar in meters.

Example: 'CorrugateWidth',0.0058

Example: ant.CorrugateWidth = 0.0019

Data Types: double

Corrugation depth, specified as a real-valued scalar in meters.

Example: 'CorrugateDepth',0.0560

Example: ant.CorrugateDepth = 0.0790

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: m = metal('Copper'); 'Conductor',m

Example: m = metal('Copper'); ant.Conductor = m

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

Example: 'Load',lumpedelement. lumpedelement is the object handle for the load created using lumpedElement.

Example: ant.Load = lumpedElement('Impedance',75)

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

Example: 'Tilt',90

Example: ant.Tilt = 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.

Note

The wireStack antenna object only accepts the dot method to change its properties.

Data Types: double

Tilt axis of the antenna, specified as:

  • 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, each specified as three-element vectors of Cartesian coordinates. In this case, the antenna rotates around the line joining the two points in space.

  • A string input describing simple rotations around one of the principal axes, 'X', 'Y', or 'Z'.

For more information, see Rotate Antennas and Arrays.

Example: 'TiltAxis',[0 1 0]

Example: 'TiltAxis',[0 0 0;0 1 0]

Example: ant.TiltAxis = 'Z'

Note

The wireStack antenna object only accepts the dot method to change its properties.

Data Types: double

Object Functions

showDisplay antenna or array structure; display shape as filled patch
axialRatioAxial ratio of antenna
beamwidthBeamwidth of antenna
chargeCharge distribution on metal or dielectric antenna or array surface
currentCurrent distribution on metal or dielectric antenna or array surface
designDesign prototype antenna or arrays for resonance at specified frequency
efficiencyRadiation efficiency of antenna
EHfieldsElectric and magnetic fields of antennas; Embedded electric and magnetic fields of antenna element in arrays
impedanceInput impedance of antenna; scan impedance of array
meshMesh properties of metal or dielectric antenna or array structure
meshconfigChange mesh mode of antenna structure
optimizeOptimize antenna or array using SADEA optimizer
patternRadiation pattern and phase of antenna or array; Embedded pattern of antenna element in array
patternAzimuthAzimuth pattern of antenna or array
patternElevationElevation pattern of antenna or array
returnLossReturn loss of antenna; scan return loss of array
sparametersS-parameter object
vswrVoltage standing wave ratio of antenna

Examples

collapse all

Create a conical corrugated-horn antenna object with the cone height set to 0.09 m

ant = hornConicalCorrugated('ConeHeight',0.09);
show(ant)

Figure contains an axes. The axes with title hornConicalCorrugated antenna element contains 3 objects of type patch, surface. These objects represent PEC, feed.

Plot the radiation pattern of the antenna at 9.62 GHz.

figure
pattern(ant,9.62e9)

Figure contains an axes and other objects of type uicontrol. The axes contains 3 objects of type patch, surface.

References

[1] Jadhav, Rohini.P, Vinothkurnar Javnrakash Dongre, Arunkumar Heddallikar. "Design of X-Band Conical Horn Antenna Using Coaxial Feed and Improved Design Technique for Bandwidth Enhancement". In International Conference on Computing, Communication, Control, and Automation (ICCUBEA), 1-6. Pune, India: ICCUBEA 2017.

Introduced in R2020a