Greetings to all residents of the forum.
Assembled the device in a bundle of ESP32 + CPU2104 + PN5180
General view of the device.
Power supply is stable, no noise or float. PN5180 - works at 3.3V.
Everything worked well on the mecket, but as soon as I began to carry out tests on my printed circuit board, it turned out that the interference from the PN5180 was very large.
The antenna is taken out through the connector separately. It was assumed that it would be possible to attach it to the bottom of the main board, but the labels are not readable even when tight to the antenna. At a distance of about 8-10 cm, they are read without problems.
I set up the RF section for the NXP soft program, but this did not solve the problem.
What can be wrong ?
An aluminum screen without a ground wire connection did not solve the problem.
I want to try shielding the radio with 3M 1194 shielded copper non-conductive tape.
Can anyone come across a similar one? Where to look ? What to re-read again?
Maybe there are recommendations from the shielding NXP company itself.
