QUESTION

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What is the minimum distance between WiFi and BT antennas?
What is the minimum distance between the WiFi and Bluetooth antennas without create interference to each other?

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1 Answer

answered by
Hi Rockwell,

The best indicator to determine the minimum distance between WiFi and BT antennas is the antenna isolation and envelope correlation coefficient. My best recommendation would be to create a prototype board using your current board outline and experiment with placing the antenna on the board orthogonal to each other and then measure S21 on a network analyzer until you get at least -10dB of isolation between the two antennas.  Then measure each antenna in an anechoic chamber to determine the ECC. anything less than 0.3 is great. I would not stop configuring the placement of the two antennas if the ECC is higher than 0.5.

Best regards,

Geoff S.

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Senior Antenna Engineer at Antenova With over 25 years’ experience in manufacturing, test and design, Steve has a wealth of RF and measurement knowledge across many industry sectors.

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