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01-07-2021

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Using WWAN antenna for WLAN chip

2021-01-07, 18:05 PM

I busted the Aux antenna connected to my WWAN chip.  I will be replacing the chip (since the connector broke as well).  Wondering:

 

Rather than replacing the Aux antenna (grey), can I simply use the antennae that are intended to be used for a WLAN chip (red and blue)?  I don't have a WLAN chip and don't intend to ever install one, so I would rather use those antenna then have to remove the LCD to replace the grey, aux antenna intended for WWAN.

 

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3614 Posts

12-22-2008

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Re:Using WWAN antenna for WLAN chip

2021-01-07, 18:30 PM

Welcome to the forum.

 

You could certainly try it. Doing so shouldn't do any damage. Since WWAN and WLAN operate on different frequencies (or wavelengths) the swapped antennas may not work as well as the ones that are cut for the correct wavelength. I would expect wireless range would suffer. But if you're close enough to a router that may not matter.


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Re:Using WWAN antenna for WLAN chip

2021-01-07, 18:43 PM

Thank you.  I know nothing about antenna tech or how they work.  Do you imagine the quality would suffer greatly?  I know it's tough to say without experimenting, but in my mind it's worth trying versus taking the whole machine apart to install a new wlan antenna. 

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3 Posts

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Re:Using WWAN antenna for WLAN chip

2021-01-07, 18:50 PM
Oh, and secondly, what if I left the black (main) antenna intended for the WLAN (which isn't busted), but used the WWAN aux antennae? Do the two antennae have to be part of the same set?
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Re:Using WWAN antenna for WLAN chip

2021-01-07, 19:04 PM

In answer to all of these questions, I would experiment. How well this works will depend on the specific system model, how the antenna wires are oriented, how long they are, etc.

 

I agree that this is preferable to taking the LCD assembly apart. Not only is disassembly more complicated but there's a risk that you might damage something expensive like the LCD panel itself in the process. If experimenting with different antenna wire combinations doesn't produce satisfactory results then all you've lost is some time.


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