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The HA5WH network takes advantage of cyclic symmetry to give simple
design equations, and excellent sideband suppression with ideal
components. If the cyclic symmetry is maintained, the network is
not very sensitive to component tolerances. This means that
the components in each of the network sections should be carefully
matched. Breaking the cyclic symmetry by using unmatched components
can drastically effect the performance of the network.
I have given a set of formulas and Fortran programs to design the optimum ideal
networks, and to analyze both the ideal and nonideal cases.
Analyses other than the cases that I have described here
can be easily done with these methods and codes.