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28GHz microstrip patch antenna feed problem

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halfbloodprince

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Ka band - Microstrip patch array antenna feed problem

Hi all,

I am designing microstrip patch array antenna (arranged in P x Q way) with coaxial feed in Ka band. Because of the patch's tiny size, i suspect the fabrication problem with SMA connectors colliding each other. I verified the available SMA connectors available in internet. The size of the each connector is not suffice to avoid collision.

I am looking for the alternative excitation feeds. Can some one please help me.
 
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