Hello,
I would like to ask you if there is an antenna layout available for the nRF52833. Indeed, I would like to develop my own application with it and, this SoC needs to be connected to the antenna array with different distances to create a phase shift. Unless the chip is programmed to create it regardless of the distance.
Thanks for your help and answers.
Regards,
Hi,
I'm a bit unsure what you're actually asking but..
The reference design for the nRF52833 can be found on the product page, under downloads
The reference design is without an antenna, so this needs to be added;
If your planning to connect your design to an antenna array, you add a connector instead of Z1, Z2, Z3 and an onboard antenna.
Questions about antenna array, for direction finding, please contact the regional sales manager in your area, using contact us.
Antenna choice is complex and depends on many factors including technical and commercial considerations. But here are some info:
Monopole, printed PCB antenna: This is easy to make and easy to tune, you also only need one impedance matching component, so it’s cost effective. Here the spacing is the issues, you need to make it about 23 mm long needs a minimum of 5 mm clearance to the ground plane. High bandwidth, making it fairly resistant to detuning. Link to our whitepaper: https://infocenter.nordicsemi.com/pdf/nwp_008.pdf?cp=12_18. You can also copy the one from our DK, but then remember to add som mm of length, for antenna tuning.
Meander antenna, printed PCB antenna, ex. our dongle antenna design: Requires a smaller area than the monopole antenna, but usually requires a pi-network for tuning in addition to length. Lower bandwidth than a quarter wave monopole antenna. Here is a link to our nRF52840 Dongal design files as an example of this: https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-Dongle/Download#infotabs
Chip antenna: Higher BOM, but the antenna is small. The downside is that it usually has less gain. It requires a matching network, based on the vendors recommendations. It has a lower bandwidth than a quarter wave monopole antenna so it can be sensitive to detuning.
As a rule we do not usually recommend specific chip antennas. The selection will depend very much on the end application design, the antenna vendors can assist on choosing the right antenna for a specific design, for example Johanson has a useful tool that helps with this selection: https://www.johansontechnology.com/chip-antenna-selection
Best regards,
Kaja
Hi,
I'm a bit unsure what you're actually asking but..
The reference design for the nRF52833 can be found on the product page, under downloads
The reference design is without an antenna, so this needs to be added;
If your planning to connect your design to an antenna array, you add a connector instead of Z1, Z2, Z3 and an onboard antenna.
Questions about antenna array, for direction finding, please contact the regional sales manager in your area, using contact us.
Antenna choice is complex and depends on many factors including technical and commercial considerations. But here are some info:
Monopole, printed PCB antenna: This is easy to make and easy to tune, you also only need one impedance matching component, so it’s cost effective. Here the spacing is the issues, you need to make it about 23 mm long needs a minimum of 5 mm clearance to the ground plane. High bandwidth, making it fairly resistant to detuning. Link to our whitepaper: https://infocenter.nordicsemi.com/pdf/nwp_008.pdf?cp=12_18. You can also copy the one from our DK, but then remember to add som mm of length, for antenna tuning.
Meander antenna, printed PCB antenna, ex. our dongle antenna design: Requires a smaller area than the monopole antenna, but usually requires a pi-network for tuning in addition to length. Lower bandwidth than a quarter wave monopole antenna. Here is a link to our nRF52840 Dongal design files as an example of this: https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-Dongle/Download#infotabs
Chip antenna: Higher BOM, but the antenna is small. The downside is that it usually has less gain. It requires a matching network, based on the vendors recommendations. It has a lower bandwidth than a quarter wave monopole antenna so it can be sensitive to detuning.
As a rule we do not usually recommend specific chip antennas. The selection will depend very much on the end application design, the antenna vendors can assist on choosing the right antenna for a specific design, for example Johanson has a useful tool that helps with this selection: https://www.johansontechnology.com/chip-antenna-selection
Best regards,
Kaja
