Antennaless wireless device capable of operation in multiple frequency regions

Antennaless wireless device capable of operation in multiple frequency regions

  • CN 102,084,542 A
  • Filed: 07/31/2009
  • Published: 06/01/2011
  • Est. Priority Date: 08/04/2008
  • Status: Active Grant
First Claim
Patent Images

1. a wireless handheld or portable unit (100) that does not have antenna, it comprises:

  • Subscriber interface module (101),Processing module (102),Memory module (103),Communication module (104) andPower management module (105);

    Described communication module (104) comprises the radiating system (200) that can transmit and receive electromagnetic wave signal in first frequency scope and second frequency scope, and the highest frequency of wherein said first frequency scope is lower than the low-limit frequency of described second frequency scope;

    Described radiating system (200) comprising;

    irradiation structure (201), this irradiation structure (201) comprises or comprises the ground plan layer (206) that at least one can support at least a radiation mode, and described at least one ground plan layer (206) comprises at least one tie point (207);

    At least one radiation booster (204), its coupling is coupled to described at least one ground plan layer (206) from the electromagnetic energy of described at least one ground plan layer (206) or with electromagnetic energy, and described radiation booster/each radiation booster comprises tie point (205);

    And at least one internal port (208), wherein said internal port (208)/each internal port (208) is limited between the tie point in described at least one tie point (207) of the described tie point (205) of described radiation booster (204)/each radiation booster (204) and described at least one ground plan layer (206);

    Wherein said at least one ground plan layer (206) is correlated with ground plan rectangle (450), described ground plan rectangle (450) is defined as the rectangle of the size minimum that comprises described at least one ground plan layer (206), and at least one point of the side of described like this ground plan rectangle (450) and described at least one ground plan layer (206) is tangent;

    Described radiating system (200) also comprises radio system (202) and external interface (203);

    Described radio system (200) comprises the port (209) of each internal port in described at least one internal port (208) that is connected to described irradiation structure (201) and the port (210) that is connected to the described outside port (203) of described radiating system (200);

    Wherein, under the situation that described irradiation structure (201) disconnects from described radio system (202), for any frequency of described first frequency scope, described irradiation structure (201) is not equal to 0 in the imaginary part of described internal port (208)/input impedance that each internal port (208) is located;

    And wherein said radio system (202) changes the impedance of described irradiation structure (201), thereby provides impedance matching for described radiating system (200) in described at least two frequency ranges of described radiating system operation.

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