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Communication system and communication apparatus

  • US 7,894,770 B2
  • Filed: 08/14/2007
  • Issued: 02/22/2011
  • Est. Priority Date: 09/11/2006
  • Status: Active Grant
First Claim
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1. A communication system, comprising:

  • a transmitter including a transmission circuit unit configured to generate a radio-frequency signal for transmitting data and an electric-field-coupling antenna configured to transmit the radio-frequency signal as an electrostatic magnetic field;

    a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the radio-frequency signal received by the electric-field-coupling antenna; and

    a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss,wherein the surface-wave transmission line includes a plurality of separate dielectrics or magnetic bodies.

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