POLYNOMIAL REPRESENTATIONS OF SPLIT-PHASE CONSTANTS OF GYROMAGNETIC WAVE-GUIDES WITH ELECTRIC AND MAGNETIC WALLS

Two classic circular waveguides met in the design of nonreciprocal Far aday rotation devices add waveguide junction circulators are the gyrom agnetic ones with electric and magnetic walls, The purpose of this let ter is to present some polynomial representations of the split-phase c onstants in the gyrotropy of each problem region and to compare the op ening between the split branches for the two situations, A polynomial representation of the cutoff space of the lower split branch of the ma gnetic wall problem region is separately computed.