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pattern view ( zeland)

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Alberich

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Hi all,
I am doing a parametric syudy of a PIFA antenna and I would to have the field in the cartesian components (Ex,Ey, Ez) in a specified plan (like in the figure attached)
I would to know if it is posible or not and if yes how to do it?

thanks in advance
best regards.
 

Hi, Alberich:

You can use MGRID to do near field distribution on a plane. The magnitude will be identified by color instead of the z-axis.

Regards.
 

Hi DR JIAN,
thanks for replaying , but the matter is that I don't understand how to do it can u give me a brief procedure to achive the result if u have enough time .

thanks in advance .
regards
 

Dr Jian Hi, excuse me but I have an other matter with pattern view for appreciating the E phi in teta=90 °
the matter is that the pattern look like a broken line and I need it as smooth as possible how to do it please ?
thanks in advance
regards
 

Hi, Alberich:

It looks like you use the infinite substrate model of IE3D for this antenna. It is excellent for antennas radiatng mainly in other than 90 degree angles. However, The null at 90 degree s caused by the infinite substrate. You may want to use finite substrate for such an application if the radiation in theta = 90 is critical.

For near field calculation and visualization, please open a .cur file for the current distribution. Please select PROCESS->NEAR FIELD CALCULATION and define some volume for the near field calculation. Then, you can display the near field at some cuts.

Regards.
 

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    Alberich

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HI Dr Jian,
thanks , FOR UR help, it is true the ground plane I am using is so big that the radiation pattern look like with an infinite one, but tell me how to get a better resolution I need a smooth graph, I get it with E teta but with E phi for a defiend Teta it is not possible it's look like this figure , so how to get more point to smooth the graph thanks in advance
regards
 

Hi, Alberich:

When you check the button for finding the radiation pattern, IE3D/MGRID will prompt you for the excitation and angles. You can insert more angles for the theta and/or phi. Then, you will be able to find smooth curves. Right now, there are too few theta angles defined.

Best regards,
 

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