  We study transmission properties of discrete networks composed of linear
arrays coupled to systems of N side defects, and demonstrate the basic
principles of the resonant scattering management through engineering Fano
resonances. We find exact solutions for the wave transmission coefficient and
reveal the conditions for the perfect reflections and transmissions due to
either destructive or constructive interferences. We associate these
reflections and transmissions with Fano resonances, and demonstrate how they
can be tuned by introducing nonlinear defects into the network.
