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How far does one of the 2.4GHz flex antennas need to be over / away from the PCB?
This is for a PCB body worn device.  I would like to get the antenna a far away from the body and PCB as possible.  Placing it on the inside top of the enclosure. The enclosure may be the size as a deck of cards but about half the thickness.

Thank you.

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1 Answer

answered by

Hi Josiah,

Ideallly there should be atleast 15mm from PCB to antenna in same orientation as shown in the image. Further away the antenna is from the PCB, better the performance.

Best regards,

Yu Kai Yeung

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Yu Kai Yeung

Antenna Engineer at Antenova Yu Kai is an antenna expert with over 10 years of experience in the design and testing of antennas. He has experience helping customers with certification testing, combined with his knowledge of RF measurement procedures.

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Senior Antenna Engineer at Antenova Raymond has a wealth of experience in RF and antennas across many industry sectors. He has over 20 years of experience in electronics design and manufacturing.


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