Surface communication apparatus

摘要

Provided is a surface communication apparatus that includes: propagation sheet through which electromagnetic waves are propagated; an electromagnetic wave transmission unit disposed on a surface of propagation sheet to transmit the electromagnetic waves to propagation sheet, and an electromagnetic wave reception unit disposed on the surface of propagation sheet to receive the electromagnetic waves propagated through propagation sheet. The electromagnetic wave transmission unit includes an electromagnetic wave generator, and a transmission electromagnetic wave coupler that couples electromagnetic waves generated by the electromagnetic wave generator with propagation sheet. The electromagnetic wave reception unit includes a reception electromagnetic wave coupler that couples the electromagnetic waves propagated through propagation sheet, and an electromagnetic wave output unit that outputs the electromagnetic waves coupled by the reception electromagnetic wave coupler. Propagation sheet has a periodic structure that sets wavelengths of the electromagnetic waves propagated through propagation sheet to be longer than the length of propagation sheet in its extending direction.

主权项

1. A surface communication apparatus comprising:
a sheet-shaped electromagnetic wave propagation unit which propagates electromagnetic waves; an electromagnetic wave transmission unit which is disposed on a surface of the electromagnetic wave propagation unit and transmits electromagnetic waves to the electromagnetic wave propagation unit; and an electromagnetic wave reception unit which is disposed on the surface of the electromagnetic wave propagation unit and receives the electromagnetic waves propagated through the electromagnetic wave propagation unit, wherein: the electromagnetic wave transmission unit includes an electromagnetic wave generator and a transmission electromagnetic wave coupler which couples electromagnetic waves generated by the electromagnetic wave generator with the electromagnetic wave propagation unit; the electromagnetic wave reception unit includes a reception electromagnetic wave coupler which couples the electromagnetic waves propagated through the electromagnetic wave propagation unit, and an electromagnetic wave output unit which outputs the electromagnetic waves coupled by the reception electromagnetic wave coupler; and the electromagnetic wave propagation unit has a periodic structure that sets wavelengths of the electromagnetic waves propagated through the electromagnetic wave propagation unit to be longer than the length of the sheet-shaped electromagnetic wave propagation unit in an extending direction.