Re: RF power chain mods and improvements..

ajparent1/kb1gmx
 

Hint the ADA4895 will not drive the IRF510s to full power.  It cannot produce enough power.

The PHA22 at 1DB compression is 22dbm almost 160mW  add IRF510 (assume low 13db gain)
and you get to almost 3.2W (if high maybe 6W).  The PHA22 is really power hungry and
regulated voltage.  If the board layout and pad are not right they can take off or melt.  Most
mmics trade power in for bandwidth. 


Allison

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