Ferroelectrics · 1993 · 106 citations · 10 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsMicrowave EngineeringSolid State PhysicsDielectric MaterialsDielectric PropertiesDielectricsFerroelectric MaterialsMicrowave MaterialsSuperconducting MaterialsCeramic DielectricsFerroelectric CapacitorsFerroelectric Dielectric ResponseHigh-temperature SuperconductivityHigh-temperature SuperconductorsNonlinear Dielectric ResponseOxygen StoichiometryVoltage Control
Abstract The initial success in high-T c superconductivity applications at microwaves leads to the creation of new branch in microwave electronics operating at liquid nitrogen temperature. In this connection one should reconsider the behaviour of nonlinear dielectrics at microwaves. The characteristics of a capacitor in the form of trilayer structure YBa2Cu9O7−x/(BaxSr1−x)TiO9/YBa2Cu9O7−x are discussed. The crucial influence of oxygen stoichiometry on the structure properties is assumed. The layered structures including non-linear dielectrics could be used as a basis for devices with voltage control of the microwave circuit parameters.
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<title>Ceramic phase-shifters for electronically steerable antenna systems</title>
Fathi Selmi, D.K. Ghodgaonkar, R. I. Hughes et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1991 · 69 citations
Natural Sciences, Electrical Engineering, Materials Science +17