Chandra Amma Palanisamy

MathWorks

Last seen: Today | 2021 年からアクティブ

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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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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...

約1時間前 | 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...

約1時間前 | 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...

約16時間前 | 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. ...

14日前 | 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 ...

14日前 | 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...

14日前 | 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...

14日前 | 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...

14日前 | 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. ...

23日前 | 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 ...

23日前 | 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...

23日前 | 0

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

23日前 | 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...

23日前 | 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...

23日前 | 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...

27日前 | 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...

27日前 | 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...

27日前 | 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...

28日前 | 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...

28日前 | 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...

28日前 | 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...

約1ヶ月前 | 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...

約1ヶ月前 | 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 ...

約1ヶ月前 | 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...

約2ヶ月前 | 0

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Plot radiation pattern of 2 antennas omnidirectional.
The array of two antennas can be created using the array catalog available in Antenna Toolbox. The radiation pattern of both the...

約2ヶ月前 | 0

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3D plot of antenna factor
The issue is that AFlog is calculated for a single pair of PHI and THETA values, resulting in a scalar, but it is later used in ...

2ヶ月前 | 0

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Antenna Toolbox function patternCustom gives error in standalone application: " Undefined function or variable 'patternCustom' "
This behavior is expected because patternCustom is an Antenna Toolbox function that requires Antenna Toolbox license during exec...

2ヶ月前 | 0

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how to get radiation pattern (2d and 3D) for an antenna?
Since Antenna Toolbox was introduced in R2015a, you can generate both 2D and 3D radiation patterns of an antenna directly using ...

2ヶ月前 | 0

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How can I tri sectorized an antenna?
Tri-sectorization can be achieved by creating three directional antennas and orienting them with azimuth angles separated by 120...

3ヶ月前 | 0

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How to Define Differential (Balanced) Transmission Lines in Antenna Toolbox Using customAntenna?
RF PCB Toolbox provides built-in transmission line catalogs, including support for differential transmission lines. For more inf...

3ヶ月前 | 0

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