What is the optimal position of ESP-WROOM-32 on base board ?

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SaiTejaManchukanti
Posts: 9
Joined: Mon Mar 12, 2018 11:36 am

What is the optimal position of ESP-WROOM-32 on base board ?

Postby SaiTejaManchukanti » Thu Apr 05, 2018 4:44 am

Hello, Currently we are developing ESP-WROOM-32 based board for our application.

Page 15 in hardware design guidelines suggests recommended position of ESP-WROOM-32. Can someone please explain the reason behind recommended and not recommended position ?

Link for the hardware design guidelines is provided below.
https://www.espressif.com/sites/default ... nes_en.pdf
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WiFive
Posts: 3529
Joined: Tue Dec 01, 2015 7:35 am

Re: What is the optimal position of ESP-WROOM-32 on base board ?

Postby WiFive » Thu Apr 05, 2018 6:35 am

antenna performance
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SaiTejaManchukanti
Posts: 9
Joined: Mon Mar 12, 2018 11:36 am

Re: What is the optimal position of ESP-WROOM-32 on base board ?

Postby SaiTejaManchukanti » Thu Apr 05, 2018 10:46 am

Please explain what is the difference between position 1 and position 3.
Why position 1 is not recommended and position 3 is highly recommended ?
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BuddyCasino
Posts: 263
Joined: Sun Jun 19, 2016 12:00 am

Re: What is the optimal position of ESP-WROOM-32 on base board ?

Postby BuddyCasino » Thu Apr 05, 2018 1:44 pm

Look at the antenna feed points, the two bright spots on the black antenna part. In Pos 3 & 4, they are at the edge of the board, in all others they are in the middle of the PCB.
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