Vinod Dwarapudi
MathWorks
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how to calculat the phase shift in 2d planar array
Hi Srinidhi For a planar array, the phase progression must be calculated independently along the x- and y-directions based on t...
19 hours ago | 0
Extracting equivalent currents (Antenna Toolbox)
Hi Johannes Brantl While Antenna Toolbox can compute currents and tangential fields for a known antenna geometry, reconstructin...
19 hours ago | 0
Getting tangential field values of an antenna
Hi Johannes Brantl It sounds like you are describing an inverse source reconstruction problem, where the goal is to estimate th...
19 hours ago | 0
Need help from someone that fully understands antennas and Matlab
Hi Pedro Pereira, A simple way to validate the Array Factor (AF) calculation is to use a uniformly excited linear array. For a ...
20 hours ago | 0
amplitude coefficient of 4x4 planar antenna array
Hi Abdullah Qaroot While optimization can certainly be used to determine amplitude coefficients, in antenna array design the ta...
5 days ago | 0
draw and export omni directional antenna pattern for 5GHz wifi (vertical and horizontal)
Hi Hong Cheng In R2026a, Antenna Toolbox provides the capability to import radiation pattern data exported from CST. Using the ...
20 days ago | 0
3d antenna design with antipodal geometery
Hi purva Shrivastava Antenna Toolbox provides a built-in antipodal Vivaldi antenna model that can be used as a starting point f...
27 days ago | 0
Hello, i want to find out HPBW, NULLS, SIDE LOBE LEVELS of 3D pattern of planar antenna array, not from graph, but through matlab coding. your help would be appreciated, i have to submit it quite soon. Regards
Hi Irfan Muhammad, The pattern shown appears to be the array factor of the planar array. To obtain the actual radiation pattern...
27 days ago | 0
How to specify spatial position (center feed point) for dipole antenna not at origin
Hi Brett Catalano, Conformal Array can be used to arbitrarily position antenna elements at desired locations % place dipol...
27 days ago | 0
How can I export a figure to mashlab-like editable format?
Hi Gonzalo Salvador STL files store only geometry and do not natively support scalar field or colormap information. However, so...
1 month ago | 0
radiation pattern generation for 10 element array of point sources using electric field quation
Apart from missing degree to radian conversion, original code had two main issues preventing correct results. First, the inner...
1 month ago | 0
Difficulty plotting the polar plot of the electric field (theta component) radiated by a horn antenna in MATLAB.
Hi Muhammad Hamza Shashid, The H-plane expression needs to be implemented with angle-dependent spectral terms (kx_p, kx_pp) and...
1 month ago | 0
designing feed network of micro strip patch array
Hi fima Yes. If the patch array is already available, RF PCB Toolbox can be used to design and integrate the microstrip feed ne...
1 month ago | 0
plotting dipole antenna far-field pattern, with multiple slices
Hi Neil, The following example approximates a dipole using multiple short dipoles. The current distribution of a reference dipo...
2 months ago | 0
3d custom antenna elements
Hi Andrew and George, Yes, this is supported in Antenna Toolbox For a custom 3D antenna geometry, import the STL file and crea...
2 months ago | 0
STL creation for customAntennaStl?
Hi James, In this particular case, the workflow initially appeared to hang because the STL coordinates were interpreted as 'met...
2 months ago | 0
How to obtain the bandwidth from an sparameters() imported file?
Hi Chamath Vithanawasam The sample code below is intended for single-band antennas. It identifies the −10 dB S11 crossing frequ...
2 months ago | 0
Simulation of E-Shaped Antenna
Hi, If you're looking for MATLAB support for an E-shaped microstrip antenna, Antenna Toolbox already includes a built-in E-shap...
2 months ago | 0
Non-standard spherical coordinates conversion
Hello Albert, In R2026a, Antenna Toolbox provides the capability to import radiation pattern data exported from CST. Using the ...
2 months ago | 0
How to open and read .ffs file matlab?
Hello Barbara, In R2026a, Antenna Toolbox provides the capability to import radiation pattern data exported from CST. Using the...
2 months ago | 0
replication of CST design in MATLAB and use antenna tool box .
Hi, STL export has been supported in CST Microwave Studio for many years. I recommend checking the CST Help documentation or co...
2 months ago | 0
Optimize antenna from pcbStack object
From 25a, custom Antenna optimization is supported. Attaching the example link for similar problem. Eventhough 3d geometry workf...
1 year ago | 0
I am trying to use the PCBwriter function to output a Gerber file for PCB stack object with greater than 2 layers.
From 25a, gerberWrite supports multiLayer export. Try using it in 25a. Attaching the documentation link here. gerberWrite - Gen...
1 year ago | 0
Simulating a hertzian dipole
I have changed the scaling of Contour plot and reduced the length of the antenna. Also replaced variable 'i' to 'xx' to not get ...
5 years ago | 0
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