metal
Description
creates a metal with predefined characteristics and stores it as a metal object. Use this
metal as the conductor material for the antenna or array catalog elements. You can specify
a material from the m
= metal(material
)MetalCatalog
. The default value for material is perfect electric conductor
(PEC).
creates the metal object based on the properties specified by one or more Name-Value Arguments.m
= metal(Name,Value
)
Examples
Monocone Antenna with Steel Conductor
Use steel as the as a conductor for a monocone antenna.
m = metal("Steel")
m = metal with properties: Name: 'Steel' Conductivity: 6990000 Thickness: 6.8000e-04 For more materials see catalog
Create a monocone antenna using the monocone
antenna object.
ant = monocone(Conductor=m)
ant = monocone with properties: Radii: [5.0000e-04 0.0110 0.0110] GroundPlaneRadius: 0.0325 ConeHeight: 0.0115 Height: 0.0250 FeedHeight: 5.0000e-04 FeedWidth: 5.0000e-04 Conductor: [1x1 metal] Tilt: 0 TiltAxis: [1 0 0] Load: [1x1 lumpedElement]
View the antenna using the show
function.
show(ant)
Customize Metal Properties
Create an annealed copper conductor with the conductivity of 5.8001e07 S/m and thickness of 1e-04 m.
m = metal(Name="Annealed Copper",Conductivity=5.8001e07,Thickness=1e-04)
m = metal with properties: Name: 'Annealed Copper' Conductivity: 58001000 Thickness: 1.0000e-04 For more materials see catalog
Create a birdcage antenna using the annealed copper conductor.
ant = birdcage(Conductor=m)
ant = birdcage with properties: NumRungs: 16 CoilRadius: 0.4000 CoilHeight: 0.0400 RungHeight: 0.4600 ShieldRadius: 0 ShieldHeight: 0 Phantom: [] FeedLocations: [2x3 double] FeedVoltage: 1 FeedPhase: 0 Conductor: [1x1 metal] Tilt: 0 TiltAxis: [1 0 0] Load: [1x1 lumpedElement]
View the antenna using show
function.
show(ant)
Compare Impedance Values of Microstrip Patch Antennas with Different Metal Patches
Create and visualize the microstrip patch antennas with PEC, copper, silver, and aluminium metals as conductors.
ant_patchPEC = patchMicrostrip(Substrate=dielectric("FR4"),Conductor=metal("PEC")); show(ant_patchPEC)
ant_patchCopper = patchMicrostrip(Substrate=dielectric("FR4"),Conductor=metal("Copper")); show(ant_patchCopper)
ant_patchSilver = patchMicrostrip(Substrate=dielectric("FR4"),Conductor=metal("Silver")); show(ant_patchSilver)
ant_patchAluminium = patchMicrostrip(Substrate=dielectric("FR4"),Conductor=metal("Aluminium")); show(ant_patchAluminium)
Compare the impedance values at a frequency of 1.2 GHz.
Z_patchPEC = impedance(ant_patchPEC,1.2e09)
Z_patchPEC = 1.3287 +18.0332i
Z_patchCopper = impedance(ant_patchCopper,1.2e09)
Z_patchCopper = 1.3703 +18.0774i
Z_patchSilver = impedance(ant_patchSilver,1.2e09)
Z_patchSilver = 1.7103 +18.0479i
Z_patchAluminium = impedance(ant_patchAluminium,1.2e09)
Z_patchAluminium = 1.3810 +18.0887i
Input Arguments
material
— Metal from material catalog
"PEC"
(default) | string
Metal material, specified as a metal object from the MetalCatalog
. The default material is PEC having infinite conductivity and
zero thickness.
Example:
"Iron"
Data Types: string
Name-Value Arguments
Specify optional pairs of arguments as
Name1=Value1,...,NameN=ValueN
, where Name
is
the argument name and Value
is the corresponding value.
Name-value arguments must appear after other arguments, but the order of the
pairs does not matter.
Example: Name="Iron"
Before R2021a, use commas to separate each name and value, and enclose
Name
in quotes.
Example: 'Name','Iron'
Name
— Name of metal material
string
Name of the metal material to use as a conductor, specified as a string.
Example: "Tungsten"
Data Types: string
Conductivity
— Conductivity of metal material
Inf
(default) | scalar
Conductivity of the metal material, specified as a scalar in Siemens per
meters(S/m). If you set Conductivity
to Inf
, you
must set Thickness
to 0. The minimum value of conductivity is 1e05
S/m in the Antenna Toolbox™
Example: 4.8e06
Data Types: double
Thickness
— Thickness of metal
0
(default) | scalar
Thickness of the metal material along the default z-axis, specified as a scalar in meters. The upper limit of thickness value is 1e-03 m in the Antenna Toolbox
Example: 0.26e-6
Data Types: double
Output Arguments
m
— Conductor metal
metal object
Conductor metal with predefined properties, returned as a metal object. You can use
the metal
object as a conductor for the antenna catalog
elements.
Version History
Introduced in R2021a
See Also
MATLAB Command
You clicked a link that corresponds to this MATLAB command:
Run the command by entering it in the MATLAB Command Window. Web browsers do not support MATLAB commands.
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
How to Get Best Site Performance
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)