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Wire antenna?

Hello, is it possible to use a wire antenna with nRF52832?

I have read that only PCB or chip antennas are used, so I expect the answer to be no, just wanted to confirm. I was thinking about a wire soldered perpendicular to the PCB, so we can reduce pcb area, and I thougth it could improve performance for being the antenna in "free air".

So is it possible or what are the downsides of this?

Thanks a lot,

Luis Rodenas

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  • Sure it increases Z size, if wire is 1/4 of 2.45GHz wavelength, I found this dimension is 30.6 mm aprox, so 3 cm. In my particular case (which I understand is not very common) I don't mind using that extra size. I am worried about losing RF range, power, omnidirectional emission, etc. Will it be harder to tune the antena matching circuit? In my application (RC drone), omnidirectional efficiency is very important, because I want to have very similar RF range, no matter how the drone is rotated in every axis... so do you think the wire is better or worse than chip or pcb antenas for these matters? BTW tahnk you very much for your help. :)

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  • Sure it increases Z size, if wire is 1/4 of 2.45GHz wavelength, I found this dimension is 30.6 mm aprox, so 3 cm. In my particular case (which I understand is not very common) I don't mind using that extra size. I am worried about losing RF range, power, omnidirectional emission, etc. Will it be harder to tune the antena matching circuit? In my application (RC drone), omnidirectional efficiency is very important, because I want to have very similar RF range, no matter how the drone is rotated in every axis... so do you think the wire is better or worse than chip or pcb antenas for these matters? BTW tahnk you very much for your help. :)

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