Patent ID: 6847332

Claim:
Device for receiving and/or transmitting signals comprising: an assembly of n means for receiving and/or transmitting waves with longitudinal radiation of the slot-antenna type, where n is an integer greater than or equal to one; an excitation means electromagnetically coupled to at least the slot of one antenna; a switching device that acts by controlling the electromagnetic coupling between the said excitation means and at least one slot of the slot antenna, wherein the switching device comprises: at least one means for producing a reversible electrical contact between two metallized surfaces defining one slot of the slot antenna; and a means ( 10 ) for controlling the state of the reversible electric contact; wherein the means for producing a reversible electrical contact between two metallized surfaces defining a slot of the slot antenna are placed through the slot at a distance close to k′λs4 from the excitation means, with λs=λ0/√ε1reff (λ0 being the wavelength in a vacuum and ε1reff the effective relative permittivity of the slot) and k′ is an odd integer.