Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

Antenna Designer

Design, visualize, and analyze antennas

Description

The Antenna Designer app lets you design, visualize, and analyze antennas in the Antenna Toolbox library interactively.

Using this app, you can:

  • Select antennas based on general properties or antenna perfromance.

  • Visualize antennas based on frequency and frequency range.

  • Analyze antennas based on radiation pattern, polarization, and bandwidth.

  • Export selected and designed antennas as a variable to the MATLAB® workspace, as either live script or a function.

Open the Antenna Designer App

  • MATLAB Toolstrip: In the Apps tab, under Signal Processing and Communications, click the app icon.

  • MATLAB command prompt: Enter antennaDesigner.

Examples

expand all

The Antenna Designer opens a blank canvas.

  1. Select and Visualize Antenna

    • Click

      in the canvas toolstrip to choose the antenna you want to analyze.

    • The default antenna is a dipole antenna.

    • You can filter the antennas based on Radiation pattern, Polarization, and Bandwidth.

    • Using the toolstrip you can also add Cavity backing, or Reflector backing to the antennas.

    • You can also specify the Design Frequency of the antenna. Setting this value scales the antenna to resonate at the specified frequency. You can also tune the antenna using Antenna Properties tab during analysis.

    • Use Reset, to go back to default settings.

    • Use Accept, to analyze the antenna characteristics.

    • Use Cancel, to start over.

  2. Antenna Gallery

    • You can choose your antennas from the Antenna Gallery.

    • The Antenna Gallery drop-down menu consists of: APERTURE, DIPOLE FAMILY, LOOP FAMILY, MONOPOLE FAMILY, OTHERS, PATCH FAMILY, and SPIRAL FAMILY.

    • When you filter antennas based on Radiation pattern, Polarization, or Bandwidth, the antenna gallery greys out the antennas that do not belong to the chosen filter.

  3. Analyze Antenna

    • You can plot the Impedance and S Parameter of the antenna based on the specified Frequency Range in Hz.

    • You can visualize the Current distribution on the antenna based on the specified Frequency in Hz.

    • You can visualize the 3D Pattern, AZ Pattern, EL Pattern of the antenna based on the specified frequency. Here AZ stands for azimuth and EL stands for elevation.

    • Use Export to view your antenna in MATLAB workspace or MATLAB script.

    • Manually change the antenna properties using the Antenna Properties tab. In this tab, you can change the geometrical properties of the antenna, add a dielectric substrate to the antenna, and change the value and location of the load.

Use the Antenna Designer app to plot the radiation pattern of a cavity-backed dipole antenna.

Open the app and click New to show the default dipole antenna.

In the Backing Structure section, click Cavity to create a cavity-backed dipole antenna.

Click Accept.

In SCALAR FREQUENCY ANALYSIS, click 3D Pattern to calculate the radiation pattern of the cavity-backed dipole. The default frequency used is 75 MHz. Click Tile to view both the antenna and the radiation pattern.

Use the Antenna Designer app to plot the radiation pattern of a patch microstrip antenna with a dielectric substrate.

Open the app and click New. In the ANTENNA GALLERY section, under PATCH FAMILY, click Microstrip Click Accept.

On the Antenna Properties tab, change the groundplane length and groundplane width to 0.120 m. Click Apply to see the changes.

Add an FR4 dielectric as a substrate to the patch microstrip antenna. To add the dielectric, open the Substrate section and set Name to FR4, EpsilonR to 4.8000, and Loss Tangent to 0.0260. Click Apply to see the antenna.

Click 3D Pattern to plot the radiation patttern of the antenna at the default frequency of 1.67 GHz.

Related Examples

Programmatic Use

expand all

antennaDesigner opens the Antenna Designer app, enabling you to design and analyze antennas present in the Antenna Toolbox library.

See Also

Introduced in R2017a

Was this topic helpful?