NRF51822 PCB layout review

[joseph]

Hello,

I recently finished up the NRF51822 pcb board that I plan on getting printed. I used the reference design file provided by Nordic (NRF51x22_qfax) but added the following things:

• Meander Antenna taken from NRF51-Dongle with a bit more length added for adjustment
• Shunt Capacitor for the Meander Antenna
• Through-holes connected to most of the I/O pinouts from the chip for breakout
• Through-holes for power in (1.8V & GND)
• Increase in GND plate size with vias to match

I am rather new at working with the NRF51 series as well as PCB design. Any advice would be great help. I am mostly concerned over the way my antenna is structured and if a single shunt cap should be enough for this.

Thanks!

Image of Front

Image of Back

Altium PcbDoc Source File

[ProtexFor]

Hi Joseph, I read your problem, and I have also read the solutions provided by AmbystomaLabs. My idea is to do the development of a lighthouse, where you can measure the ambient temperature. No matter the size of the prototype (for now). My query is yes with your design, I will be able to get what I want. If yes, could you give me the design? On the other hand, I have to buy everything in one go. So I'm going to buy an SDK, a beacon module and 5 nRF51822 chips. I would need to know which temperature sensor I need, and what balun I'll need. If you can lend a hand to make the list of components, I also thank you. regards