how to isolate the LO leakage in zero-if receiver?

hi, everyone
how to isolate the LO leakage in zero-if receiver? such as in schemetic or layout?
thanks a lot!

u need to used high isolation Mixer , Gilbert cell can be used

also the revers gain of the LNA should be minimized S12 , it is very important

khouly

thanks khouly
but how to solve this problom in RF CMOS process?
and whether considering the transimission line effect in CMOS RFIC design? my rf is in 1.1-1.6GHz
thanks

I believe no need for 1-1.6GHz
in the layout be careful about the input/output line and LO lines, do not go parallel