DESIGN OF MICROWAVE FILTERS BY INVERSE SCATTERING

A new design method for planar microwave filters based on the theory o f inverse scattering is presented, The method results in filters with a continuously changing profile, for example a nonuniform microstrip l ine with continuously varying width, Filters designed by this method a re shown to possess some distinct advantages in realization and perfor mance over other common techniques. The design method is presented in detail, and efficient numerical algorithms to solve the design equatio ns that arise are discussed, A wideband 4 pole Chebyshev bandpass filt er was designed, constructed, and tested, to prove the design method. This is the first demonstration of a microwave filter designed using i nverse scattering.