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High Frequency Antenna Platform Radiation Pattern Analysis

Hi,

I want to analyze the radiation pattern on the high frequency reflector antenna platform at FEKO. However, the platform is electrically very large compared to the wavelength. What steps should I follow to obtain results close to full wave analysis? I will analyze the reflector antenna operating in the X band on the aircraft.

Best regards,

Faruk

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Accepted answers

Zeina

Hi @Faruk_Gungor , thanks for clarifying your question.

If you do not have sufficient memory to solve the problem with MLFMM, which is the best accuracy option, you can use PO or LE-PO for the platform. The results of your runs would be accurate in regions of the plateforme "illuminated" by the antenna and less accurate in shadow regions. But as normally the area impacting the antenna performance is usually adjacent to it, this limitation is not an issue for this type of placement analysis.

Best Regards,

Zeina

All comments

Zeina

Hi @Faruk_Gungor,

I recommend you have a first look at the example H.3 Horn Feeding a Large Reflector, where a reflector of diameter 36*lambda has been modeled along with a horn feed. The model is solved with different combinations: MoM/MLFMM (horn) and PO/LE-PO (reflector).

Best,

Zeina

Faruk_Gungor

Hi,

Actually, I asked about the antenna analysis on the platform. Namely, how should we approach high frequencies by placing an antenna on the plane? Is there a solution method that can provide a result close to the full wave solution (like MLFMM) at high frequencies when we place the reflector antenna on the plane?

Best regards,

Faruk

Zeina

Hi @Faruk_Gungor , thanks for clarifying your question.

Zeina