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Increasing Wi-Fi SNR with NLoS - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


mateja
 Post subject: Increasing Wi-Fi SNR with NLoS
Posted: Wed Jun 27, 2012 1:23 pm 
 
Lieutenant

Joined: Wed Jun 27, 2012 1:10 pm
Posts: 1
How can I figure out what type of antenna (e.g. omni, Yagi, parabolic, etc) I should use to increase my SNR to an 802.11n router signal to which I do not have line of sight? A straight line running between the antennas would run through approximately 30 m of interior construction. With a 1 dBi antenna the noise is at about -92 dB while the signal can range between -70 dB down to -90 dB and the link is frequently lost. How can I figure out how much gain on my antenna would be appropriate, 6 dBi, 12 dBi, 15 dBi, and what pattern would be appropriate?

I’m an EE but I have no RF experience and I'm looking to learn more about how to make such decisions.

I would greatly appreciate your advice or any references or tutorials you can point me to.

Thank you!

Mateja





Posted  11/12/2012

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