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MIMO Antenna Pattern Measurement

 
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Ahmed_Abdelraheem
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PostPosted: Wed Sep 09, 2015 1:18 pm    Post subject: MIMO Antenna Pattern Measurement Reply with quote

Greetings everyone,

Does it matter, when measuring pattern of certain element in a MIMO array, to terminate all other ports with matched load ??
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admin
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PostPosted: Thu Sep 10, 2015 3:32 am    Post subject: Reply with quote

You should, because the antennas used in an actual system will have a receiver at 50 Ohms. Closely spaced antennas absorb each other's energy (reducing the antenna efficiency) and may alter the radiation pattern as well.
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Ahmed_Abdelraheem
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PostPosted: Thu Sep 10, 2015 1:55 pm    Post subject: Reply with quote

This makes a good sense.

Thank you ...
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Ahmed_Abdelraheem
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PostPosted: Thu Sep 10, 2015 2:03 pm    Post subject: Reply with quote

Another question is you don't mind .. When it is acceptable to measure envelope correlation coefficient ECC from S-parameters and when it's a must to use the far field pattern formula? And, does it have any meaning to measure ECC at only one plane using 2D pattern or at least two perpendicular planes or should I use 3D pattern (which is very labor)?

Thank you in advance Smile
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