Sharath Maadam

MathWorks

Last seen: Today | Active since 2021

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DISCLAIMER:Any advice or opinions here are my own , and in no way reflect that of MathWorks.

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Antenna Toolbox - Impedance v. Frequency sweeps produce different results between R2017a and R2017b. Which is correct?
Updated the code for latest version,which should give more reliable results. %%Investigating Rogers Corp. Antenna Dielectric Pr...

14 hours ago | 0

Answered
Query related to antenna design.
I modified the code with correct variables from the shared code,and the result looks correct. d = dielectric('FR4'); ant = spi...

14 hours ago | 0

Answered
Query related to antenna design.
I modified the code with correct variables from the shared code,and the result looks correct. d = dielectric('FR4'); ant = spi...

14 hours ago | 0

Answered
Query related to antenna design.
I modified the code with correct variables from the shared code,and the result looks correct. d = dielectric('FR4'); ant = spi...

14 hours ago | 0

Answered
How does the createFeed() by GUI (antenna toolbox and selecting a closed polygon) work as an excitation source?
For the given stl file mesh, feed can be selected interactively or by specifying the feed location. For the closed polygon case,...

7 days ago | 0

Answered
Loop circular antenna rotation problem
Below code can be used. r = r0/2; c = loopCircular("Radius",r); [~] = mesh(c,'MaxEdgeLength',0.05); [p,t]=exportMesh(c); tr...

7 days ago | 0

Answered
Simulation method of the influence of metal installed near the antenna
This use case can be achieved using conformal array with shapes workflow,where platform can be modelled using shapes and any ant...

10 days ago | 0

Answered
design a parasatic antenna arrray
3d geometry workflows can be used to design the antenna using booleans. https://in.mathworks.com/help/antenna/3d-authoring.html...

17 days ago | 0

Answered
Antenna toolbox convergence problems
Meshing can be controlled manually using different Name-Value pairs available. For any specific issues,it would be helpful if an...

17 days ago | 0

Answered
How to create an antenna radiation pattern from a crossed Yagi-Uda Antenna
3D modelling can be used to generate different geometry structures using boolean operations from the available shapes. More in...

23 days ago | 0

Answered
Is it possible to design an array with N elements with each element resonating at a different frequency?
Conformal array need not be designed again using a frequency. Elements can be grouped together after they are designed at differ...

23 days ago | 0

Answered
Phased array in antenna designer not outputting directivity properly
Modified th spacing to achive better results. %% Yagi-Uda Conformal Array - Grating-Lobe-Free Version % Center frequency 11.8 ...

1 month ago | 0

Answered
Antenna Toolbox, how pattern function works?
Based on the largest dimension of the antenna or array setup,pattern will be calculated at a distance of 100 lambda by default,i...

1 month ago | 0

Answered
S parameters plot not making sense for antipodal Vivaldi antenna using antenna designer.
Dip for the antenna can be seen closer to 1.8 GHz,however specific antenna dimensions can be tuned like stripLIneWidth etc to im...

1 month ago | 0

Answered
Antenna Error [vert1,vert2] = em.internal.findEdgeVertices(ExciterVertices', ...
Feed Width seems to be small compared to patch boundary, code below can be used. clear; close all; clc; fclose all; freq = ...

1 month ago | 0

Answered
shape has NaN vertices when adding new shapes to the aggregate shape encloses a void; error assigning shape to antenna
For the above code,load appears in show(ant) for visualization. However load in mesh appears after running any analysis like imp...

1 month ago | 0

Answered
how to design a microstrip patch antenna using matlab ?
Hi, Design can be created using patchMicrostrip antenna element from Antenna Toolbox in matlab For more information,refere to ...

2 months ago | 0

Answered
how to generate non-overlapping antenna array
Hi, conformal array will be able to position antennas at it required position using ElementPosition property. If there are any ...

2 months ago | 0

Answered
Cassegrain Antenna Design Errors
Script seems to be running fine without any errors in 24b version.

3 months ago | 0

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Answered
Design a dipole antenna backed by a dielectric substrate and an infinite reflector of any dimension. Calculate the radiation pattern of the antenna.
Here are some links that helps to generate the use cases. 1.https://in.mathworks.com/help/antenna/ref/waveguide.html design(wa...

7 months ago | 0

Answered
Parabolic Dish antenna!
Below code can be used to generate the structure. This solution is using full wave simulations. r=reflectorParabolic('Radius',0...

7 months ago | 0

Answered
Bug in customAntenna (R2025/2026): isOnlyDielectric and horzcat errors with mixed PEC shapes
Based on the information provided, below approach can be used to create the antenna freq = 300e6; Height = 0.25; Radius = 0.0...

8 months ago | 0

Answered
How to build an END-FED 1/4 wave dipole which is connected to a rectangular metal, not using dipole object in MATLAB?
Hi Jeena, I have provided a code below that lets you create the structure by using the 3d geometry building capabilties from An...

11 months ago | 0

Answered
Using patternCustom to plot antenna Radiation Pattern in one figure
Updating the answer to work on latest matlab releases. %% --- Get data for Helix type antenna Radiation pattern---- h = h...

2 years ago | 0

Answered
Using patternCustom to plot antenna Radiation Pattern in one figure
Code requires a bit of modifications that could serve as a work around for the issue. Modifications include using a property of ...

5 years ago | 0