Chandra Amma Palanisamy

MathWorks

Last seen: Today | Con actividad desde 2021

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

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What's the physical significance of the complex field plots generated by EHfields and fieldsCustom?
EHfields returns the complex electric and magnetic field vectors at the specified observation points. When used for visualizatio...

1 día hace | 0

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force pattern() in antenna toolbox to use multiple cores.
The number of CPU cores used by pattern is not user-configurable. Using parfor to split the azimuth/elevation grid will not forc...

1 día hace | 0

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Mutual coupling in antenna array
Your results are consistent with the presence of mutual coupling. When the first port is excited, quantities such as , and de...

1 día hace | 0

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Can someone please tell me how can I view the coverage and radiation pattern of cartesian transmitter and Receiver?Matlab 2021a accepts only Geographic coordinates
The txsite and rxsite objects now support Cartesian coordinates. You can specify "cartesian" as the coordinate system and define...

1 día hace | 0

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How can I draw this graph ( equiangular spiral antenna) using following functions and plot?
You can use the spiralEquiangular antenna catalog element from Antenna Toolbox to design the equiangular spiral antenna directly...

1 día hace | 0

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Using the results of the pattern and EHfields commands as a ready-made field for studying interaction with a cylindrical reflector and constructing a final directional pattern
The measuredAntenna object enables you to import measured or externally generated antenna/array field data into Antenna Toolbox ...

29 días hace | 0

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How to avoid "re-computing" antenna responses (Sparam, currents, radiation patterns...) after a 1st computation in Antenna Designer?
Yes. One option is to use the Antenna Designer app to analyse the antenna and then export it to the MATLAB workspace. The expor...

29 días hace | 0

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How to apply electrical tilt to a custom antenna element
Electrical tilt is typically achieved by applying a progressive phase shift across the elements of an antenna array, rather than...

29 días hace | 0

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How to create a Yagi on a dielectric substrate (FR4 PCB board) in Antenna Designer?
If your goal is to model a printed Yagi antenna on an FR4 PCB, the recommended approach is to use the PCB Antenna Designer app o...

alrededor de 1 mes hace | 0

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How to Simulate a Cylindrical Dipole with a Physical Gap in MATLAB?
The Cylindrical Dipole with a Physical Gap can be designed and analyzed in Antenna Toolbox using its 3D authoring capabilities. ...

alrededor de 1 mes hace | 0

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plotting Antenna pattern considering special relativity
The transformed angles must be evaluated numerically before you can plot the radiation pattern. In your code, theta and phi are ...

alrededor de 1 mes hace | 0

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Reducing the computation time of the planar antenna array pattern calcuation
The main computational cost comes from repeatedly evaluating the exponential terms over the entire (θ, ϕ) grid inside the nested...

alrededor de 1 mes hace | 0

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Has someone ever come across running an RF plot and obtaining different results when different frequency ranges are selected?
The different results are caused by differences in the mesh generated for each analysis. In Antenna Toolbox™, the default meshin...

alrededor de 1 mes hace | 0

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can anybody post the code for CPW-feeding mechanism to a patch antenna?
Starting in R2026b, the pcbStack object in Antenna Toolbox™ supports CPW feed creation through the FeedDefinitions property, all...

alrededor de 1 mes hace | 0

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delta m in Beamwidth of the antenna
The ∆m value shown in the antenna beamwidth plot represents the difference in directivity magnitude between markers C2 and C1. ...

alrededor de 2 meses hace | 0

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Radiation Pattern Of Wire Antennas Of Different lengths
The wire antennas of different lengths can be modelled by converting a dipole antenna into a wire structure using the wireStack ...

alrededor de 2 meses hace | 0

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function similar to Vivaldi element pattern
To design Vivaldi antennas, use the Antenna Toolbox vivaldi, vivaldiOffsetCavity, and vivaldiAntipodal antenna objects which sup...

alrededor de 2 meses hace | 0

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Lens Antenna Design
Using the Antenna Toolbox dielectricLens object, one can design and analyze dielectric lens antennas.

alrededor de 2 meses hace | 0

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Antenna radiant power (v/m)^2 pattern value wildly inconsistent across effectively identical simulations
Hi, Could you please share a minimal MATLAB example (preferably using a simple patch antenna) that reproduces the issue? Includ...

alrededor de 2 meses hace | 0

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Is there any way to create a phased array using the customAntennaMesh command ?
The customAntennaMesh can be directly assigned as an Element in the phased array objects Ex. phased.ULA. ant = customAntennaMes...

alrededor de 2 meses hace | 0

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Error filling holes for shared_channel:patternCustom:RepeatedPoints. Floating point numbers are not allowed as holes. They should be converted to character vectors.
This error usually occurs when patternCustom receives duplicate or nearly identical direction points in the phi/theta data. It e...

alrededor de 2 meses hace | 0

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how can i plot the radiation intensity in general by matlab for aperture antenna
Antenna Toolbox provides built-in aperture antennas including horn, hornConical, hornCorrugated, hornConicalCorrugated, hornPott...

alrededor de 2 meses hace | 0

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DESIGN A LOOP ANTENNA AND COMPARE ITS CHARACTERSTICS AT VARIOUS DIMENSIONS
Antenna Toolbox already includes loop antennas such as loopCircular and loopRectangular. By varying parameters such as radius, o...

alrededor de 2 meses hace | 0

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Results difference for a conical horn antenna in CST and Antenna Toolbox
Hi Evangelos, The Antenna Toolbox in MATLAB can be utilized to design and analyze horn antennas. Could you please share your sc...

alrededor de 2 meses hace | 0

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How to extract the Impedance Matrix of the Method of Moments (MoM) in antenna toolbox?
Hi, Currently there is no supported workflow in Antenna Toolbox to directly retrieve or extract the Method of Moments (MoM) imp...

alrededor de 2 meses hace | 0

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how to calculate the nulls, minors, majors and grating lobes of an antenna array in matlab
You can use the polarpattern plot in Antenna Toolbox to visualize the radiation pattern and compute parameters such as nulls, ma...

alrededor de 2 meses hace | 0

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How to add a substrate to an antenna pattern
The RFID example uses customAntennaMesh to create the antenna. To include a PET substrate (90 µm thick, εr ≈ 3.5), you can recre...

2 meses hace | 0

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How to specify matched loads for elements in Antenna Toolbox built-in arrays?
IIn Antenna Toolbox array objects such as linearArray, circularArray, and rectangularArray, AmplitudeTaper specifies the excitat...

2 meses hace | 0

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how to apply the LMS algorithm on circular array of dipole antenna?
In Antenna Toolbox, you can create a circular array of dipole antennas using the circularArray object and analyze its radiation ...

2 meses hace | 0

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How to create a directional antenna with Antenna Toolbox for RF coverage analysis
The above-mentioned directional antenna can be modeled in Antenna Toolbox using its 3-D Modelling capabilities. After creating t...

3 meses hace | 0

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