reflectorCylindrical
Description
The reflectorCylindrical
antenna object creates a cylindrical
reflector-backed antenna. The cylindrical shape of the reflector allows you to focus the
signal to the antenna surface. Cylindrical reflectors are widely used as high-gain apertures
fed with line sources and in airborne navigational antennas where sharp azimuthal beams and
wide-angle vertical coverage is required.
Creation
Description
creates a
cylindrical reflector-backed antenna. The default cylindrical reflector antenna object
has an exciter as a center-fed dipole located on the X-Y plane and the dimensions are
chosen for an operating frequency of around 1 GHz.ant
= reflectorCylindrical
creates a cylindrical reflector antenna, with additional Properties specified by one or
more name–value arguments. ant
= reflectorCylindrical(Name=Value)Name
is the property name and
Value
is the corresponding value. You can specify several
name-value arguments in any order as Name1
=
Value1
, ...
,
NameN
=ValueN
. Properties not specified retain
their default values.
For example, reflectorCylindrical(GroundPlaneWidth=0.21)
creates
a cylindrical reflector with a width of 0.21 meters.
Properties
Object Functions
axialRatio | Calculate and/or plot axial ratio of antenna or array |
bandwidth | Calculate and/or plot absolute bandwidth of antenna |
beamwidth | Beamwidth of antenna |
current | Current distribution on antenna or array surface |
charge | Charge distribution on antenna or array surface |
design | Design prototype antenna or arrays for resonance around specified frequency or create AI-based antenna from antenna catalog objects |
efficiency | Radiation efficiency of antenna |
EHfields | Electric and magnetic fields of antennas or embedded electric and magnetic fields of antenna element in arrays |
impedance | Input impedance of antenna or scan impedance of array |
info | Display information about antenna, array, or platform |
memoryEstimate | Estimate memory required to solve antenna or array mesh |
mesh | Mesh properties of metal, dielectric antenna, or array structure |
meshconfig | Change meshing mode of antenna, array, custom antenna, custom array, or custom geometry |
optimize | Optimize antenna or array using SADEA optimizer |
pattern | Plot radiation pattern and phase of antenna or array or embedded pattern of antenna element in array |
patternAzimuth | Azimuth plane radiation pattern of antenna or array |
patternElevation | Elevation plane radiation pattern of antenna or array |
rcs | Calculate and plot monostatic and bistatic radar cross section (RCS) of platform, antenna, or array |
resonantFrequency | Calculate and/or plot resonant frequency of antenna |
returnLoss | Return loss of antenna or scan return loss of array |
show | Display antenna, array structures, shapes, or platform |
sparameters | Calculate S-parameters for antennas and antenna arrays |
vswr | Voltage standing wave ratio (VSWR) of antenna or array element |
Examples
References
[1] Balanis, Constantine A. Antenna Theory: Analysis and Design. 3rd ed. Hoboken, NJ: John Wiley, 2005.
Version History
Introduced in R2020b