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Antenna control apparatus, antenna control program, and antenna control system

  • US 10,177,823 B2
  • Filed: 09/05/2016
  • Issued: 01/08/2019
  • Est. Priority Date: 03/22/2016
  • Status: Active Grant
First Claim
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1. An antenna control apparatus that controls an inter-center distance between two antennas, the antenna control apparatus comprising:

  • an input parameter acquisition unit that acquires, as input parameters, a distance from the two antennas to a boundary of a communication area formed by the antennas, and a lower limit value of an attenuation rate of a magnetic field intensity at the boundary of the communication area; and

    a calculation unit that calculates, based on the distance to the boundary of the communication area and the lower limit value of the attenuation rate of the magnetic field intensity, the inter-center distance between the antennas such that the attenuation rate of the magnetic field intensity equal to the lower limit value is obtained at the boundary of the communication area and the intensity of the electric currents flowing through the antennas is minimized, whereinthe antennas are fed with the electric currents with an equal intensity in mutually reverse directions andthe calculation unit calculates the inter-center distance in accordance with the following formula;

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