How to use array tool in Aman to generate an antenna pattern with measurement gains of an element

Coco
Coco Altair Community Member
edited March 27 in Community Q&A

Dear,

I have measured gains of all my 16 single elements of my antenna array, where I'd like to use it as the pattern of a directional antenna in ProMan.

Here's my thought. My data is in a .csv file, which is not quite able to be converted in to an .ffe file (if there's a way please ignite me), but I managed to convert it into an .apa file. The .apa file can be opened in Aman, and where I'd like to use the Aman array tool to generate an .ffe file of a 4x4 array of such an element.

I'm so far mainly comfused by the axis setting of Aman.

Fig.1 Single element pattern

Fig.2 Aman array tool panel

In such a setting do I get an 4x4 array on XZ-plane? Cause there's a strange mirror effect of my results while using a default dipole results in no such thing.

Fig.3 My strange result of a 4x4 xz-plane setting

I can't understand why there's a main beam to both +-y direction… the pattern of the element seems to be nicely cut by the xz-plane? I also tried to reduce it to a linear array, while I found out that the element spacing can't be 0. I left it 0.5 lambda as default…

Fig.3 Strange requirement of element spacing while creating a linear array

Fig.4 4x1 result

Same happened and I'm not sure about whether it's my understanding of the axis caused the problem, or the formatting of an .apa file or anything?

If there's some other method to avoid all these and making it possible to use a .csv file in ProMan please comment!

Thank you very much!

Best regards,

Coco

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Answers

  • Jaehoon
    Jaehoon
    Altair Employee
    edited March 28

    Dear Coco,

    I understand what you want to do with the Antenna array tool in AMAN.

    Please share your .apa file here and answer the following question.

    Is the .apa file the measured pattern for one element or for 4by4 elements ?

    Best regards,

    Jaehoon

  • Coco
    Coco Altair Community Member

    Dear Jaehoon,

    Thank you for your answer. I believe I have the measurement data of one of each element for a 4x4 array. However, when I tried to upload the file, the .apa file isn't in the list of the allowed extension of this forum. Neither is a .csv file…

    Therefore, I kindly ask if there's any hint I can get from you? For example, things you might try if you get the file. Or actually you're thinking that it's because of the pattern?

    Best regards,

    Coco

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