AIAntenna

Enable catalog antenna elements for AI-based design space exploration

Since R2023b

Description

The AIAntenna object lets you convert a regular antenna from the antenna catalog to an AI-based object and leverage AI-based analysis for rapid characterization and design space exploration. Using AI-based antenna models over conventional full-wave solvers significantly reduces the simulation time required to fine-tune the antenna to meet your design goals.

Creation

You can create an AIAntenna object for the supported catalog elements by setting the ForAI name-value argument to true in the design function. This object has 2 fixed read-only properties and catalog element specific dynamic properties which are either tunable or read-only. See the individual antenna catalog element pages for details on these dynamic properties.

Properties

Antenna Information

AntennaType — Type of antenna from catalog

string scalar

This property is read-only.

Antenna type from the antenna catalog, returned as a string.

Example: "patchMicrostrip"

Data Types: string

InitialDesignFrequency — Initial design frequency of antenna

positive scalar

This property is read-only.

Initial design frequency used to create the AIAntenna, returned as a positive scalar in Hertz.

Example: 1e9

Data Types: double

Object Functions

bandwidth	Calculate absolute bandwidth of AI-based antenna
defaultTunableParameters	Get default values of tunable properties
exportAntenna	Export tunable property values of AI-based antenna to equivalent catalog element
resonantFrequency	Calculate resonant frequency of AI-based antenna
reset	Reset tunable property values to default
show	Display antenna, array structures, shapes, or platform
tunableRanges	Find upper and lower bounds of tunable properties

Examples

Create and Analyze AI-Based Microstrip Patch Antenna

This example shows how to create an AI-based microstrip patch antenna operating at 1.67 GHz, and calculate its bandwidth and resonant frequency.

Use the design function with the ForAI argument set to true to create an AI-based microstrip patch antenna operating at 1.67 GHz. To use the ForAI argument in the design function you need a license to the Statistics and Machine Learning Toolbox™.

pAI = design(patchMicrostrip,1.67e9,ForAI=true)

pAI = 
  AIAntenna with properties:

   Antenna Info
               AntennaType: 'patchMicrostrip'
    InitialDesignFrequency: 1.6700e+09

   Tunable Parameters
                    Length: 0.0862
                     Width: 0.1122
                    Height: 0.0018

Use 'showReadOnlyProperties(pAI)' to show read-only properties

Explore the design space by changing its length and width with values within the tunable range of these properties. You can get the tunable range of a property by using tunableRanges function on the AI-based antenna object.

pAI.Length = 0.0855;
pAI.Width = 0.113;

Calculate the absolute bandwidth of the antenna and its lower and upper bounds.

[absBW,fL,fU,matchingStatus] = bandwidth(pAI)

absBW = 
2.3422e+07

fL = 
1.6679e+09

fU = 
1.6913e+09

matchingStatus = categorical
     Matched 

Calculate the resonant frequency of the antenna.

fR = resonantFrequency(pAI)

fR = 
1.7016e+09

Convert the AI-based microstrip patch antenna to a regular microstrip patch antenna.

pm = exportAntenna(pAI)

pm = 
  patchMicrostrip with properties:

               Length: 0.0855
                Width: 0.1130
               Height: 0.0018
            Substrate: [1x1 dielectric]
    GroundPlaneLength: 0.1795
     GroundPlaneWidth: 0.1795
    PatchCenterOffset: [0 0]
           FeedOffset: [0.0181 0]
            Conductor: [1x1 metal]
                 Tilt: 0
             TiltAxis: [1 0 0]
                 Load: [1x1 lumpedElement]

Version History

Introduced in R2023b