Abstract
The effect of phase-frequency bistability in magneto-dielectric hexaferrite resonator has been investigated in 35–40 GHz frequency range. It is shown that switching between saturated and multidomain states results in switching of mode frequency and corresponding modification of insertion losses and phase shift in the region between initial and final resonant frequencies. A theory based on equivalent circuit model is found to adequately predict both losses and phase shift. A prototype of millimeter-wave latching discrete phase shifter on the basis of the bistability effect is suggested, and its parameters are compared with characteristic for discrete phase shifters. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1759–1764, 2014
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