The invention concerns an electronic device for personal use and a coupled antenna apparatus for such a device, comprising a top cover and a housing with an opposing back cover configured to form a closed space between said top and back cover that is adapted to receive electronic circuitry and a display unit. A broadcasting wave dispatching apparatus transmits the contents to the entire information provided area through a broadcasting wave. A device fabrication process employs a selective silicon-on-insulator technique including forming trenches in the substrate; passivating the upper portion of the element; and performing a long oxidation to create the buried oxide layer. The intermediate layer includes a polyester and the second outer layer is an olefinic polymer. Changes in the polarization state of the optical signal attenuates the magnitude of the output electrical signal of the optical receiver. Thus a better scaling factor is provided for most channel cases, which can still be calculated with the limited computational resources of a terminal for such networks.