Cosine antenna element
The CosineAntennaElement
object models an antenna
with a cosine response in
both azimuth and elevation. The main response axis (MRA) points to
0° azimuth and 0° elevation in the antenna coordinate system.
When placed in a linear array, the MRA is normal to the array axis
(see, for example, phased.ULA
).
When placed in a planar array, the MRA points along the array normal
(see, for example, phased.URA
).
To compute the response of the antenna element for specified directions:
Define and set up your cosine antenna element. See Construction.
Call step
to compute the antenna
response according to the properties of phased.CosineAntennaElement
.
The behavior of step
is specific to each object in
the toolbox.
This antenna element is not capable of supporting polarization.
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.
H = phased.CosineAntennaElement
creates
a cosine antenna system object, H
, that models
an antenna element whose response is cosine raised to a specified
power greater than or equal to one in both the azimuth and elevation
directions.
H = phased.CosineAntennaElement(
creates
a cosine antenna object, Name
,Value
)H
, with each specified
property set to the specified value. You can specify additional name-value
pair arguments in any order as (Name1
,Value1
,...,NameN
,ValueN
).
|
Operating frequency range Specify the operating frequency range (in Hz) of the antenna
element as a 1-by-2 row vector in the form Default: |
|
Exponent of cosine pattern Specify the exponents of the cosine pattern as a scalar or a 1-by-2 vector. Exponent values
must be real numbers greater than or equal to zero. When you set
Default: |
directivity | Directivity of cosine antenna element |
isPolarizationCapable | Polarization capability |
pattern | Plot cosine antenna element directivity and patterns |
patternAzimuth | Plot cosine antenna element directivity or pattern versus azimuth |
patternElevation | Plot cosine antenna element directivity or pattern versus elevation |
step | Output response of antenna element |
Common to All System Objects | |
---|---|
release | Allow System object property value changes |
phased.ConformalArray
| phased.CrossedDipoleAntennaElement
| phased.CustomAntennaElement
| phased.IsotropicAntennaElement
| phased.ShortDipoleAntennaElement
| phased.UCA
| phased.ULA
| phased.URA