TRANSMISSION SYSTEM BETWEEN A WORKING MEDIA AND A DESTINATION MEDIA WITH DIFFERENT PERMITS (Machine-translation by Google Translate, not legally binding)

Transmission system (20) between a working medium and a destination medium with different permittivities comprising an antenna (1), an envelope (2), a control circuit (5) that is coupled with the antenna (1) to transmit data. The envelope (2) comprises a first region (21) of a first material that covers at least partially the antenna (1) and that has a permittivity ({ep1 }) less than the permittivity ({ ept } of the working medium, eg concrete (4). (Machine-translation by Google Translate, not legally binding) Sistema (20) de transmisión entre un medio de trabajo y un medio de destino con diferentes permitividades que comprende una antena (1), una envolvente (2), un circuito de control (5) que se acopla con la antena (1) para transmitir datos. La envolvente (2) comprende una primera región (21) de un primer material que recubre al menos parcialmente la antena (1) y que tiene una permitividad ({ep1}) menor que la permitividad ({ept} del medio de trabajo, por ejemplo, hormigón (4).