PCA10040 PCB antenna type? (PIFA, MIFA, etc)

RE: PCA10040 PCB antenna type? (PIFA, MIFA, etc)

bjorn-spockeli — Thu, 08 Mar 2018 07:58:02 GMT

s700: The antenna designs should also work well on a 2 layer PCB. Once you have copied the antenna layout to your PCBI would recommend that you create a private question and submit your entire layout for review.

RE: PCA10040 PCB antenna type? (PIFA, MIFA, etc)

s700 — Thu, 08 Mar 2018 04:51:54 GMT

Hi, Bjorn,

I find that nRF51 DK, nRF52 DK and nRF51 Dongle use 4 layers PCB.

1, Woud you please help me whether the antenna can work well if I use 2 layers PCB?

2, If not, would you give a PCB antenna design for nRF52832.

THANK YOU

RE: PCA10040 PCB antenna type? (PIFA, MIFA, etc)

bjorn-spockeli — Fri, 25 Nov 2016 09:08:43 GMT

Not completly differnent, the λ/4 antenna and meandered are two differnet PCB trace antenna designs. λ/4 antenna antenna is the easiest to implement and tune, but it takes up more space than the meandered antenna. The meandered antenna is smaller(in size, but longer than the λ/4 if you streach it out), but will give you a lower bandwith and gain compared to the λ/4 antenna. I am afraid that we do not have a white paper on the meandered design. If you're new to antenna design, then I suggest that you copy the antenna in the Altium files from one of the DK/Dongle designs.

RE: PCA10040 PCB antenna type? (PIFA, MIFA, etc)

MANGO — Fri, 25 Nov 2016 08:51:19 GMT

Hi, Bjørn. I'm a newbie with antennas.

Is "λ/4 printed monopole antenna" and the "Meandered trace antenna" are completely different?

From the white paper "λ/4 printed monopole antenna for 2.45 GHz", it told me to draw 26mm lengthed antenna.

Whereas the antenna in the nRF51 Dongle has longer length.

Is there a white paper related to "Meandered trace antenna" from Nordic?

RE: PCA10040 PCB antenna type? (PIFA, MIFA, etc)

bjorn-spockeli — Fri, 25 Nov 2016 08:44:11 GMT

Hi Mango,

both the nRF51 DK and the nRF52 DK uses a λ/4 printed monopole antenna. You can find the hardware files(gerbers, schematics, BOM) for the nRF51 DK and nRF52 DK here and here respectively.

If you're looking for a space-efficient antenna, then you can use the Meandered trace antenna from the nRF51 Dongle, you can find the hardware files here.

Best regards

Bjørn

RE: PCA10040 PCB antenna type? (PIFA, MIFA, etc)

MANGO — Fri, 25 Nov 2016 04:04:31 GMT

Hi Dave, can you provide a link about that strip antenna?

RE: PCA10040 PCB antenna type? (PIFA, MIFA, etc)

Dave_couling — Fri, 25 Nov 2016 03:44:42 GMT

Could look at the strip trace antenna's used on the old nRF51 designs.