Chip antenna layout

[electroro]

Hey folks,

I am a beginner in RF and designing my first board with an antenna on it.I have referred the datasheet as much as i could.
It is a 4-layer board with signal(red)-GND(yellow)-VDD(pink)-signal(green) stackup. The transmission line is 0.34mm (50 ohm impedance)

Would love to get your opinions on the design.

I am using a small molex 2.4GHz ceramic chip antenna due to space and availability constraint.
The IC is a NRF52840.

datasheets
https://www.molex.com/pdm_docs/as/2030060001-AS.pdf
https://www.molex.com/webdocs/datasheets/pdf/en-us/2030060001_ANTENNAS.pdf

Thank you

[obuone]

Hey electroro, if you have followed the data sheet example layout and matching network everything should be ok. The only thing is it seems the your ground plane doesn't connect to the ground pads of the chip antenna. Since you have added "keep out" region where the ground plane cut out should be, it stops the ground plane to properly attach to the GND pads of the antenna.