The CosineAntennaElement
object models an antenna
with a cosine response in
both azimuth and elevation.
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.
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 exponent of cosine pattern as a scalar or a 1by2
vector. All specified values must be real numbers greater than or
equal to 1. When you set Default: 
clone  Create cosine antenna object with same property values 
directivity  Directivity of cosine antenna element 
getNumInputs  Number of expected inputs to step method 
getNumOutputs  Number of outputs from step method 
isLocked  Locked status for input attributes and nontunable properties 
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 
plotResponse  Plot response pattern of antenna 
release  Allow property value and input characteristics changes 
step  Output response of antenna element 
The cosine response, or cosine pattern, is given by:
$$P(az,el)={\mathrm{cos}}^{m}(az){\mathrm{cos}}^{n}(el)$$
In this expression:
az is the azimuth angle.
el is the elevation angle.
The exponents m and n are real numbers greater than or equal to 1.
The response is defined for azimuth and elevation angles between –90 and 90 degrees, inclusive. There is no response at the back of a cosine antenna. The cosine response pattern achieves a maximum value of 1 at 0 degrees azimuth and elevation. Raising the response pattern to powers greater than one concentrates the response in azimuth or elevation.