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MIMO antenna design at 2.4 ghz plz need an idea

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carole

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i did a design of a pach MIMO antenna 2*2 at 2.4 and i have a good matching at s11 at 2.4 ghz but the s21=-10db so the coupling level is high and i want to reduce the s21 to -20db . how can i do it any suggestion any help. thank you
 

carole said:
i did a design of a pach MIMO antenna 2*2 at 2.4 and i have a good matching at s11 at 2.4 ghz but the s21=-10db so the coupling level is high and i want to reduce the s21 to -20db . how can i do it any suggestion any help. thank you
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Hi! i´m now trying to design a 3x3 mimo antenna operating at 2,45 ghz. i need a directional one. can u pls help me in this?

thank you
 

Hey Carole

you can try different space between elements. also you can make some changes in the GND, can you share the design?
 

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