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Communication device, high-frequency coupler, coupler electrode, and composite communication apparatus

  • US 8,422,947 B2
  • Filed: 03/03/2010
  • Issued: 04/16/2013
  • Est. Priority Date: 03/12/2009
  • Status: Expired due to Fees
First Claim
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1. A communication device, comprising:

  • a communication circuit part that performs processing of a high-frequency signal for data transmission;

    a transmission path of said high-frequency signal;

    a ground;

    a coupler electrode that includes an upper flat part that acts as an electrode, a support that supports said upper flat part so that said upper flat part faces said ground and is separately placed from said ground at a height only enough to ignore the wavelength of said high-frequency signal, while having a flexible portion which is elastically deformable in the direction of said height, and a connecting portion where the other end of said support is connected to said transmission path; and

    a resonance part that enlarges a current flowing into said coupler electrode through said transmission path,wherein a micro dipole formed of a line segment that connects the center of an electric charge accumulated in said upper flat part of said coupler electrode and the center of a mirror charge accumulated in said ground is formed, andsaid high-frequency signal is transmitted to a communication partner oppositely arranged at an angle .theta. of substantially zero with respect to the direction of said mirco dipole.

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