DEVICE FOR IMPEDANCE ADAPTATION OF A COMPONENT COMPRISING AN ADAPTABLE IMPEDANCE FILTER BASED ON PEROVSKITE MATERIAL

摘要

The subject of the invention is an impedance matching device of a component comprising at least one filter, characterized in that said filter has an adaptable impedance and comprises at least two acoustic wave coupled resonators, at least one of the resonators comprising a perovskite material and means for applying a voltage to said resonator to vary its permittivity and impedance. The perovskite type material is advantageously BST, the component may be an antenna, an amplifier or a transistor.