Rank: 588 based on 237 downloads (last 30 days) and 3 files submitted
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Neill Tucker

E-mail
Company/University
activefrance.com
Lat/Long
45.5, 3.75

Personal Profile:

Enjoying the peace and tranquility of rural France, very good for the little grey cells.

Professional Interests:
Antennas

 

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Files Posted by Neill View all
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(last 30 days)
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29 Oct 2013 Screenshot Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker 2d, 3d, antennas, phased array, simulation 141 42
  • 5.0
5.0 | 9 ratings
30 May 2010 Screenshot Spectra V1.0 Plots visible emission spectra of the elements Author: Neill Tucker emission spectra, visible spectrum, gas discharge, physics 20 0
12 Feb 2010 Screenshot RF Utilities V1.2 Routines for Smith Chart, TDR, Mixed-Mode S-params, Matching Author: Neill Tucker smith chart, tdr, mixed mode sparameter..., matching, citi file, tapered line 76 13
  • 5.0
5.0 | 5 ratings
Comments and Ratings by Neill View all
Updated File Comments Rating
29 Oct 2013 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker

I found a problem with statistical variation functions plot_theta_statvar and plot_phi_statvar. The random errors were not being applied to all array elements; note these functions do not affect other calculations. I think a line of code got moved during testing and I forgot to put it back. Apologies for any confusion / inconvenience caused.

The corrections are included in an update v2.4.2, however this is pending approval by an administrator.

If you are wanting to use the statistical variation functions you can download v2.4.2 here :

http://www.activefrance.com/Antennas/page22.html

07 Sep 2013 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker

Dear David,

Thank you for your comments.

Regarding the case sensitivity, I have submitted V2.4.1 with all filenames in lower case but so far it has not appeared on the exchange site. I will have another go today since it does seem to be causing problems on later versions of Matlab.

Regarding the pattern1.mat data, this should be generated from the raw NEC2 data by the previous function :

loadnecpat1('dipole'); on line 20

It could be that Matlab is not able to find the raw data or the format of the .mat files has changed. I've sent you an e-mail with the file attached anyway.

I only have Matlab V6 so it is very hard to track down errors on later versions.

However, do let me know if you have any other problems.

Kind regards,

Neill

16 Jul 2012 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker

Hi Changshun,
The change in coordinate system for the rectangular patch is only a transposition of axes : x->Z, y->X and z->Y where x,y,z are the original model and X,Y,Z are those used by ArrayCalc. This means that the same formulas can be used as long as the axes are transposed before the formulas are applied. (Ref patchr.m lines 32-38 in the element models directory).

The reason for the transposition is to ensure the Patch's E-field is aligned with ArrayCalc's X-axis. (See section 4.2 the Theory of operation for why this convention is used).

I hope this helps,

Neill

31 Mar 2012 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker

Hi Paul,

Sorry I haven't got back to you sooner, I've e-mailed you directly to clarify exactly what type of acoustic array. Drop me an e-mail if you are still needing the information, I do have some acoustic array examples.

Kind regards,

Neill

25 Aug 2011 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker

Dear Chandra,

I'll e-mail you directly as the answer might be a little long for this forum.

Kind regards,

Neill

Comments and Ratings on Neill's Files View all
Updated File Comment by Comments Rating
29 Oct 2013 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker Tucker, Neill

I found a problem with statistical variation functions plot_theta_statvar and plot_phi_statvar. The random errors were not being applied to all array elements; note these functions do not affect other calculations. I think a line of code got moved during testing and I forgot to put it back. Apologies for any confusion / inconvenience caused.

The corrections are included in an update v2.4.2, however this is pending approval by an administrator.

If you are wanting to use the statistical variation functions you can download v2.4.2 here :

http://www.activefrance.com/Antennas/page22.html

07 Sep 2013 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker Tucker, Neill

Dear David,

Thank you for your comments.

Regarding the case sensitivity, I have submitted V2.4.1 with all filenames in lower case but so far it has not appeared on the exchange site. I will have another go today since it does seem to be causing problems on later versions of Matlab.

Regarding the pattern1.mat data, this should be generated from the raw NEC2 data by the previous function :

loadnecpat1('dipole'); on line 20

It could be that Matlab is not able to find the raw data or the format of the .mat files has changed. I've sent you an e-mail with the file attached anyway.

I only have Matlab V6 so it is very hard to track down errors on later versions.

However, do let me know if you have any other problems.

Kind regards,

Neill

06 Sep 2013 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker David

I did see that program loadnecpat can be used to generate the named file pattern1.mat externally from execution of example program Ex3a. If this is operator error on my part - sorry to have added a comment with out fully investigating the issue.
Dave

06 Sep 2013 Phased Array Design Toolbox v2.4.2 A toolbox allowing rapid definition and evaluation of 2D and 3D phased array antennas. Author: Neill Tucker David

September 06, 2013. I downloaded this package today and began experimentation . The issues of function name case sensitivity have already been reported and these should not be a major issue for anyone to correct.
When attempting to execute example progrm Ex3A I obtain an error atthe load statement (line23). The program is looking for file pattern1.mat which does not appear in the download file package. Can this file be provided ?

19 Aug 2013 RF Utilities V1.2 Routines for Smith Chart, TDR, Mixed-Mode S-params, Matching Author: Neill Tucker Chang, Lina

Of all the Smith chart scripts that I've tried this one is my favorite, for one thing IT WORKS.

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