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 namevalue
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 1by2 row vector in the form Default: 

Exponent of cosine pattern Specify the exponents of the cosine pattern as a scalar or a 1by2 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  

clone  Create System object with same property values 
getNumInputs  Expected number of inputs to a System object 
getNumOutputs  Expected number of outputs of a System object 
isLocked  Check locked states of a System object (logical) 
release  Allow System object property value changes 
phased.ConformalArray
 phased.CrossedDipoleAntennaElement
 phased.CustomAntennaElement
 phased.IsotropicAntennaElement
 phased.ShortDipoleAntennaElement
 phased.UCA
 phased.ULA
 phased.URA