ATmega256RFR2 and chip antenna

Go To Last Post
2 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Can i connect chip antenna to RFN pin and other chip antenna connect to RFP pin, and don't connect balun?

Can i use two chip antenna and don't use balun.

What you think? Thanks in advance.

Last Edited: Thu. May 2, 2019 - 11:14 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

sensor1976 wrote:
Can i connect chip antenna to RFN pin and other chip antenna connect to RFP pin
no (a common mode short)

sensor1976 wrote:
, and don't connect balun?
fyi, there are baluns that are a match for mega256RFR2.

sensor1976 wrote:
Can i use two chip antenna and don't use balun.
yes (matching network, dual throw RF switch)

sensor1976 wrote:
What you think?
(assuming you're unable to source a balun) The network to match the mega256RFR2's RF impedance and the antenna's impedance is only a few passive components.

 


edit :

https://www.johansontechnology.com/datasheets/2450BM15A0015/2450BM15A0015.pdf

via https://www.johansontechnology.com/microchip

https://www.mouser.com/ProductDetail/Johanson-Technology/2450BM15A0015E?qs=%2Fha2pyFadujtzCZ3A6x2%2F0gSWZQbrrdfa0tXaSOZcFG3Tp07Grj4OQ%3D%3D

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Fri. May 3, 2019 - 12:18 AM