All of the delay characteristics can be realized as a single lattice network, or as a cascade of second-order lattices by allocating a symmetrical group ( quad ) of two poles and two zeros to each second-order lattice in the network, and using the relationships given in Lattice network.
22.
There is a duplication of components in the "'lattice network "'as the " series impedances " ( instances of Za ) and " shunt impedances " ( instances of Zb ) both occur twice, an arrangement that offers increased flexibility to the circuit designer with a variety of responses achievable.
