Magnetic Bistable Switching Element Implemented on Quasi-CPW Inductively-coupled Slot Antenna

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 4Language: englishTyp: PDF

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Deschênes, Patrick; Laurin, Jean-Jacques (Department of Electrical Engineering, Ecole Polytechnique de Montréal, P.O. Box 6079, Station Centre-Ville, Montreal QC, Canada, H3C 3A7)

This paper describes the realization of a radiofrequency bistable switching element implemented on a flexible membrane. This switch has the advantage of consuming zero power in its stable states. A magnetic actuation is used to change from one state to the other, consuming 4.19 mJ and 1.95 mJ to turn ON and OFF respectively. A thin slat made of a high permeability material is bounded on a polyimide layer. Part of this layer is forced to move by a nearby coil generating a magnetic field. This device has potential for use in many different applications requiring reconfigurable antennas and transmission lines. A "quasi-CPW" inductively-coupled slot antenna implementing this switch has been simulated, fabricated and characterized.