buffer design

Hi, all:

I am required to design a differnential in-out buffer following the mixer stage in a 2.4GHz receiver. Both the input and output matching are required and it must shows a good linearity. Which structure should I use? Can I use the source follower directly or use a unity gain amplfier?
Waiting for ur reply!
Thanks a lot!

What is good linearity for You? OIP3=? OIP2=?

plz provide details its very necessary

hi,all.
i meet the same problem.The IIP3=10dBm will be ok for my buffer.