Crossed-dipole antenna element
The phased.CrossedDipoleAntennaElement
System
object™ models
a crossed-dipole antenna element. A crossed-dipole
antenna is often used for generating circularly polarized fields.
A crossed-dipole antenna is formed from two orthogonal short-dipole
antennas, one along y-axis and the other along the z-axis in the antenna's
local coordinate system. This antenna object generates right-handed
circularly polarized fields along the x-axis (defined
by 0° azimuth and 0° elevation angles).
To compute the response of the antenna element for specified directions:
Define and set up your crossed-dipole antenna element. See Construction.
Call step
to
compute the antenna response according to the properties of phased.CrossedDipoleAntennaElement
.
The behavior of step
is specific to each object in
the toolbox.
Starting in R2016b, instead of using the step
method
to perform the operation defined by the System
object, you can
call the object with arguments, as if it were a function. For example, y
= step(obj,x)
and y = obj(x)
perform
equivalent operations.
creates
the system object, h
= phased.CrossedDipoleAntennaElementh
, to model a crossed-dipole
antenna element.
creates
the system object, h
= phased.CrossedDipoleAntennaElement(Name
,Value
)h
, with each specified property
Name set to the specified Value. You can specify additional name-value
pair arguments in any order as (Name1
,Value1
,...,NameN
,ValueN
).
|
Antenna operating frequency range Antenna operating frequency range specified as a 1-by-2 row
vector in the form of Default: |
directivity | Directivity of crossed-dipole antenna element |
isPolarizationCapable | Polarization capability |
pattern | Plot crossed-dipole antenna element directivity and patterns |
patternAzimuth | Plot crossed-dipole antenna element directivity or pattern versus azimuth |
patternElevation | Plot crossed-dipole antenna element directivity or pattern versus elevation |
plotResponse | Plot response pattern of antenna |
step | Output response of antenna element |
Common to All System Objects | |
---|---|
release | Allow System object property value changes |
The total response of a crossed-dipole antenna element is a
combination of its frequency response and spatial response. phased.CrossedDipoleAntennaElement
calculates
both responses using nearest neighbor interpolation, and then multiplies
the responses to form the total response.
[1] Mott, H., Antennas for Radar and Communications, John Wiley & Sons, 1992.
phased.ConformalArray
| phased.CosineAntennaElement
| phased.CustomAntennaElement
| phased.IsotropicAntennaElement
| phased.ShortDipoleAntennaElement
| phased.UCA
| phased.ULA
| phased.URA
| phitheta2azel
| phitheta2azelpat
| uv2azel
| uv2azelpat