How can I use PA to increase the rf coverage?

RE: How can I use PA to increase the rf coverage?

dblasco — Thu, 17 Dec 2015 10:18:19 GMT

Hello Kristin,

I would like to ask why you chose this PA if you want +10dBm and this PA gives you about 33dB gain.

Is there a way to reduce the gain (an therefore the consumption)?

Thank you!

RE: How can I use PA to increase the rf coverage?

abbes — Wed, 22 Jul 2015 00:55:29 GMT

Hi Does anynone knows an external amplifier for Nrf24 l01 ?

RE: How can I use PA to increase the rf coverage?

gilbert7 — Mon, 14 Apr 2014 01:24:21 GMT

Thank you, Kristin.

RE: How can I use PA to increase the rf coverage?

FormerMember — Fri, 11 Apr 2014 11:58:28 GMT

Some of these PAs can for example be used; Follow our reference layout to the end of the matching network for the chip, and then when the PA should be added, follow Skyworks recommandations.

RE: How can I use PA to increase the rf coverage?

gilbert7 — Thu, 10 Apr 2014 05:05:10 GMT

Thank you for your reply.

Could you advise any PA for me?

RE: How can I use PA to increase the rf coverage?

FormerMember — Wed, 09 Apr 2014 12:20:22 GMT

Hello,

If you want to increase the output power, you can use "any" 2.4 GHz PA. The PA should be placed in the 50 Ohm reference point; between the matching network for the chip/ the balun and the antenna matching network.

Note that on the receiver side, a LNA should not be used. If using a LNA the range can be worsened because the LNA also amplifies noise, and this does not result in a better signal-to-nose ratio. In addition to amplify noise within the 2.4G domain, the blocking characteristics will also worsen if using a LNA because the out of band noise can saturate the receiver.

Unfortunately, we don't have a solution like the TI one. However, a discrete matching network for the chip/balun + 2.4 GHz PA will do the same job. The CC2590 cannot be used with our chips because the balun inside will not match our chips to 50 Ohm.

Regards, Kristin