Antenna system and mobile terminal
AssigneeLenovo (Beijing) Limited
InventorJiaxiao Niu
Life of this patent
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Abstract
An antenna system and a mobile terminal are disclosed. The antenna system includes an antenna radiator and an adjustable matching circuit connected between the antenna radiator and a radio frequency interface. The adjustable matching circuit adjusts the resistance between the antenna radiator and the radio frequency interface according to a plurality of frequency bands. The antenna radiator in the embodiments of the present disclosure is a metallic body of strip shape, which has a simple structure and is easy to implement and can be combined with the adjustable matching circuit to implement coverage of a larger range band width.
Claims11
An antenna system comprising:
- an antenna radiator;
- and
- an adjustable matching circuit connected between the antenna radiator and a radio frequency interface, wherein the adjustable matching circuit adjusts a resistance between the antenna radiator and the radio frequency interface according to a plurality of different frequency bands,
- wherein the adjustable matching circuit comprises a first switch adjustable device and a plurality of regulating elements,
- a first end of the first switch adjustable device being connected with the antenna radiator, and a second end of the first switch adjustable device being connected with first ends of the regulating elements respectively, so that the first switch adjustable device can be switched between the regulating elements;
- second ends of the regulating elements being grounded;
- and
- each regulating element comprising a capacitor or an inductor, or both;
- wherein the adjustable matching circuit further comprises a second switch adjustable device,
- a first end of the second switch adjustable device being connected with the radio frequency interface, and a second end of the second switch adjustable device being connected with the antenna radiator.
A mobile terminal comprising:
- a radio frequency interface;
- an antenna radiator;
- and
- an adjustable matching circuit connected between the antenna radiator and a radio frequency interface, wherein the adjustable matching circuit is for adjusting a resistance between the antenna radiator and the radio frequency interface, so as to enable the mobile terminal to support a plurality of frequency bands;
- wherein the adjustable matching circuit comprises a first switch adjustable device and a plurality of regulating elements,
- a first end of the first switch adjustable device being connected with the antenna radiator, and a second end of the first switch adjustable device being connected with first ends of the regulating elements respectively, so that the first switch adjustable device can be switched between the regulating elements;
- second ends of the regulating elements being grounded;
- and
- each regulating element comprising a capacitor or an inductor, or both;
- wherein the adjustable matching circuit further comprises a second switch adjustable device,
- a first end of the second switch adjustable device being connected with the radio frequency interface, and a second end of the second switch adjustable device being connected with the antenna radiator.
Dependencies are inferred from the claim text.