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Mobile phone, analysis device included therein, and analysis method

  • US 20030228891A1
  • Filed: 06/05/2003
  • Published: 12/11/2003
  • Est. Priority Date: 06/05/2002
  • Status: Active Grant
First Claim
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1. A mobile phone comprising:

  • a casing that constitutes a body;

    an upper antenna at the top of the casing;

    a lower antenna at the bottom of the casing; and

    an influence-on-antenna evaluation unit for evaluating the influence of the ambient environment on each of the antennas by determining an input impedance (Z) of each antenna at predetermined time intervals during connection and by comparing the determined input impedance with a predetermined input-impedance reference value (Z0), and wherein transmission power corresponding to the amount of radio waves radiated is supplied to the antenna that is less affected by the ambient environment and transmission power is not supplied to the antenna that is more affected by the ambient environment.

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