Wireless device capable of multiband mimo operation

Wireless device capable of multiband mimo operation

  • CN 103,155,276 A
  • Filed: 08/03/2011
  • Published: 06/12/2013
  • Est. Priority Date: 08/03/2010
  • Status: Active Grant
First Claim
Patent Images

1. wireless handheld or the portable unit that can carry out multi-band MIMO operation, comprise communication module, and described communication module comprises at least one mimo system, and wherein said at least one mimo system comprises:

  • At least two radiating systems that can transmit and receive electromagnetic wave signal, at least two in wherein said radiating system can transmit and receive electromagnetic wave signal at least the first frequency band, at least two in wherein said radiating system can transmit and receive electromagnetic wave signal at least the second frequency band;

    AndThe MIMO module is through arranging for the treatment of the electromagnetic wave signal that is transmitted and received by described at least two radiating systems;

    Wherein said MIMO module comprises at least two MIMO internal ports;

    Each in wherein said radiating system comprises that at least one is connected to the outside port in described MIMO internal port corresponding one;

    At least one in wherein said radiating system comprises irradiation structure, and described irradiation structure comprises;

    Ground plane can be supported at least a radiation mode, and described ground plane comprises tie point;

    The radiation stepup transformer, through the electromagnetic energy that is provided/received by described ground plane with coupling is provided, described radiation stepup transformer comprises tie point;

    And internal port, described internal port is limited between the described tie point of the described tie point of described radiation stepup transformer and described ground plane;

    Described at least one in wherein said at least two radiating systems further comprises radio system, and described radio system comprises;

    Be connected to the port on the outside port of correspondence of described radiating system;

    And be connected to port on the described internal port of described irradiation structure;

    Wherein when disconnecting from described radio system, the input impedance of the described irradiation structure that measures on section'"'"'s port within it has and is not equal to zero imaginary part, this situation for described operational frequency bands that described internal port is associated at least one frequency band in any frequency under all set up, described at least one frequency band in described operational frequency bands comprises described the first frequency band and/or described the second frequency band;

    Wherein said radio system changes through arranging with the described impedance with described irradiation structure, so as with described operational frequency bands that described internal port is associated in described at least one frequency band in operate;

    And the full-size of wherein said radiation stepup transformer is less than 1/30 of the free space operative wavelength of the described minimum operation frequency band that is associated with described internal port.

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