Hi everybody. Can I ask for the details of this PCA64110 flex NFC antenna:
Q) Is this flex antenna using "Gold Fingers"? If so, what is the Gold Fingers Thickness?
Q) What is the Coverlay Thickness? I see the Coverlay region near the connector side
Thank you all!
You can get all the details for the NFC antenna if yo download any of our DK hardware files, it follows.
Adding it here as well: 8726.PCA64110-NFC Antenna Flexprint 1_0_0.zip
Is this flex antenna using "Gold Fingers"?
Yes, we use a 0.5mm FPC, 5P,Right Angle SMT,Double Contact,H=1.2mm,White, Tin plated connector for this.
FPC_05P-0.5mm-RA-SMD, Manufacturer: W-CON, Manufacturer Part Number: 5141-05RZDNWR01
Q) What is the Coverlay Thickness? I see the Coverlay region near the connector side
Looks like we have on top and bottom side here, but i cant find a number. Will check internally to see if I have more specifics.
Regards,
Jonathan
Adding some extra details:
The stiffener used for the contact point is 0.3mm.
Matthew K said:Q) is this the total flex PCB thickness without the gold fingers and coverlays?
H is for the connector that we use on the PCB.
Matthew K said:Or was that the thickness of the gold fingers?
The total thickness is 0.3mm approximately at the stiffener, and that is with the finger as well, measured 0.31mm with a caliper. 
On the mechanical layer 4 in the files you can see that it says 0.3mm.
For the thickness of just the flex it is about 0.22mm, if measuring just the edge of the flex plastic then i would get 0.17mm and for the area with the traces and via i get about 0.26mm.
Matthew K said:Q) Was polyimide (PI) material selected for the coverlay?
Not sure what is used, but you should be able to pick among a wide range of materials as this will not effect the RF performance here since the NFC operates at 13.56 MHz.
So you can work together with your manufacturer to find what best fits your use case. The main criteria here is to make sure that it fits well with the connector you use.
Regards,
Jonathan
