Help me design a single balanced mixer using SPICE

hi, pals

any ideas for this Q?

i am struggling about it, no any clue on it..

appreciate for ur advice / help

what exactly your problem in design the mixer ...?
if you mean Mixer design itself is your problem you may
refer to Razavi Book of "RF microelectronics" it has a nice chapter of mixer design
if you have certain problem clear it

Can any smart Alex solve this question....