ADJUSTABLE ANTENNA AND TERMINAL

ADJUSTABLE ANTENNA AND TERMINAL

  • CN 104,956,541 A
  • Filed: 11/22/2013
  • Published: 09/30/2015
  • Est. Priority Date: 11/22/2013
  • Status: Active Application
First Claim
Patent Images

1. Claim1st, a kind of adjustable antenna, it is characterised in that including:

  • Circuit board;

    Antenna body, the signal for receiving and dispatching the first frequency range, including feed end and grounding leg, the feed end are arranged at the circuit board;

    Electric tuning network, the earth point being arranged on the circuit board is connected by the electric tuning network with the grounding leg of the antenna body, and the electric tuning network includes:

    Inductance and adjustable first tunable capacitor of capacitance, wherein, by adjusting the first capacitance of first tunable capacitor and then changing the loaded value of the inductance, so as to change first effective electrical length of the antenna body.2nd, the method as described in claim 1, it is characterised in that the inductance is connected with first tunable capacitor, and then the loaded value is reduced by first tunable capacitor, so as to shorten described first effective electrical length.3rd, the method as described in claim 1, it is characterised in that the inductance is in parallel with first tunable capacitor, and then the loaded value is increased by first tunable capacitor, so as to extend described first effective electrical length.4th, the method as described in claim 1, it is characterised in that first tunable capacitor is specifically included:

    First sub- tunable capacitor and the second sub- tunable capacitor, the first sub- tunable capacitor is connected with the inductance, the second sub- tunable capacitor is in parallel with the inductance and the first sub- tunable capacitor, wherein, in the described first sub- tunable capacitor normal work, during the second sub- tunable capacitor open circuit, the loaded value is reduced by the described first sub- tunable capacitor, so as to shorten described first effective electrical length;

    In the described first sub- tunable capacitor short circuit, during the second sub- tunable capacitor normal work, the loaded value is increased by the described second sub- tunable capacitor, so as to extend described first effective electrical length.5th, the adjustable antenna as described in any claims of claim 1-4, it is characterised in that the electric tuning network is connected with the grounding leg on the antenna body, be specially:

    The electric tuning network connection is in the grounding leg end or is connected on the antenna body close to the region of the grounding leg.6th, the adjustable antenna as described in any claims of claim 1-5, it is characterised in that the adjustable dayLine also includes:

    Antenna parasitism minor matters, are arranged at the circuit board, the high frequency mode for encouraging first frequency range.7th, adjustable antenna as claimed in claim 1, it is characterised in that the antenna body is arranged at the edge of the circuit board.8th, adjustable antenna as claimed in claim 6, it is characterised in that the parasitic minor matters of the antenna are arranged at the board edge and set close to the feed end.9th, adjustable antenna as claimed in claim 6, it is characterised in that the adjustable antenna also includes:

    Second tunable capacitor, is arranged at the end of the parasitic minor matters of the antenna, wherein, by adjusting the second capacitance of second tunable capacitor, and then change second effective electrical length of first effective electrical length and the parasitic minor matters of the antenna.10th, a kind of terminal, it is characterised in that including:

    Adjustable antenna and processor, wherein, the adjustable antenna includes:

    Circuit board;

    Antenna body, the signal for receiving and dispatching the first frequency range, including feed end and grounding leg, the feed end are arranged at the circuit board;

    Electric tuning network, the earth point being arranged on the circuit board is connected by the electric tuning network with the grounding leg of the antenna body, and the electric tuning network includes:

    Inductance and adjustable first tunable capacitor of capacitance, wherein, by adjusting the first capacitance of first tunable capacitor and then changing the loaded value of the inductance, so as to change first effective electrical length of the antenna body;

    The processor, is handled for the receiving and transmitting signal to the adjustable antenna.11st, terminal as claimed in claim 10, it is characterised in that the inductance is connected with first tunable capacitor, and then the loaded value is reduced by first tunable capacitor, so as to shorten described first effective electrical length.12nd, terminal as claimed in claim 10, it is characterised in that the inductance is in parallel with first tunable capacitor, and then the loaded value is increased by first tunable capacitor, so as to extend described first effective electrical length.13rd, terminal as claimed in claim 10, it is characterised in that first tunable capacitor is specifically wrappedInclude:

    First sub- tunable capacitor and the second sub- tunable capacitor, the first sub- tunable capacitor is connected with the inductance, the second sub- tunable capacitor is in parallel with the inductance and the first sub- tunable capacitor, wherein, in the described first sub- tunable capacitor normal work, during the second sub- tunable capacitor open circuit, the loaded value is reduced by the described first sub- tunable capacitor, so as to shorten described first effective electrical length;

    In the described first sub- tunable capacitor short circuit, during the second sub- tunable capacitor normal work, the loaded value is increased by the described second sub- tunable capacitor, so as to extend described first effective electrical length.14th, the terminal as described in any claims of claim 10-13, it is characterised in that the electric tuning network is connected with the grounding leg on the antenna body, be specially:

    The electric tuning network connection is in the grounding leg end or is connected on the antenna body close to the region of the grounding leg.15th, the terminal as described in any claims of claim 10-14, it is characterised in that the adjustable antenna also includes:

    Antenna parasitism minor matters, are arranged at the circuit board, the high frequency mode for encouraging first frequency range.16th, terminal as claimed in claim 10, it is characterised in that the antenna body is arranged at the edge of the circuit board.17th, terminal as claimed in claim 15, it is characterised in that the parasitic minor matters of the antenna are arranged at the board edge and set close to the feed end.18th, terminal as claimed in claim 15, it is characterised in that the adjustable antenna also includes:

    Second tunable capacitor, is arranged at the end of the parasitic minor matters of the antenna, wherein, by adjusting the second capacitance of second tunable capacitor, and then change second effective electrical length of first effective electrical length and the parasitic minor matters of the antenna.

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