Tunable electromagnetic coupled antenna

摘要

A multilayer tunable ferroelectric antenna assembly which includes a first laminar structure that includes a tunable ferroelectric substrate positioned on top of a conducting ground plane and a copper radiating sheet on the other side of the substrate. A second laminar structure includes a single-sided copper cladded high dielectric substrate with the copper sheet acting as the radiator. The passive second laminar structure is electromagnetically coupled to the first laminar structure via an air-gap spacing. Application of a bias voltage across the first laminar structure changes the dielectric permittivity and, hence, the resonating frequency of the antenna structure.