  Static electric fields can be configured to guide charged nanoparticles along
the electric field lines. Some field line configurations can focus the
nanoparticles to prescribed places thus acting as electric funnels. Despite the
importance of funnels for nanoprinting , there is a lack of formulation and
understanding. We present two solvable models in two dimensions (2D) as far as
it allows one to use the complex plane for exact calculation of the field
lines. One model deals with two fixed dipoles such that the external electric
field tries to squeeze through between them thus forming a funnel. The other
one deals with a couple of parallel conducting plates with a hole where the
external field comes through also creating a funnel. The results obtained may
be useful for configuring the electric field for nanoprinting engineering.
