Patent ID: 6172316
Filing Date: 2001-01-09
Classification: H01H,H04B

Abstract:
An antenna-switching device between an output of a transmitting stage and an input of a receiving stage comprising:a piezoelectric actuator having by two fixed plates for forming a capacitor; wherein inside surfaces of said plates are locally metallized to form electrical contacts;a movable contact of a piezoelectric material located between said plates; andelectrodes which supply said movable contact with a control voltage for deformation of said movable contact; said deformation occurring between a rest position corresponding to a first part of the plates, and a working position corresponding to a second given part of said plates;wherein lower parts of said inside surfaces form the electrical contacts corresponding to the rest position, and upper parts of said inside surfaces form the electrical contacts corresponding to the working position, said movable contact being displaceable in parallel with the inside surfaces of said plates.