Antenna system and terminal
First Claim
1. An antenna system, comprising:
- an antenna body having one or more connection points between the antenna body and a ground;
a tunable component having a changeable operating parameter that is a capacitance or a inductance, wherein the tunable component comprises a first inductor or a first capacitor, wherein the antenna body is connected to the tunable component; and
a first filter and a second filter, wherein the first filter and the second filter are connected to the antenna body;
wherein the first filter is connected in parallel with the tunable component, wherein a first end of the first filter is connected to the antenna body, and a second end of the first filter is connected to the ground, and wherein the first filter presents a high impedance characteristic in a low frequency band, and presents a low impedance characteristic in a high frequency band; and
wherein the second filter is connected in series between the antenna body and the tunable component, wherein the second filter presents a low impedance characteristic in a low frequency band, and presents a high impedance characteristic in a high frequency band.
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Accused Products
Abstract
An antenna system includes an antenna body, a tunable component, and at least one of a first filter and a second filter. The antenna body is connected to the tunable component. The first filter is connected in parallel to the tunable component, and the first filter presents a high impedance characteristic in a low frequency band, and presents a low impedance characteristic in a high frequency band. The second filter is connected in series between the antenna body and the tunable component, a first end of the second filter is connected to the antenna body, and a second end of the second filter is connected to the tunable component. The second filter presents a low impedance characteristic in a low frequency band, and presents a high impedance characteristic in a high frequency band.
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Citations
18 Claims
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1. An antenna system, comprising:
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an antenna body having one or more connection points between the antenna body and a ground; a tunable component having a changeable operating parameter that is a capacitance or a inductance, wherein the tunable component comprises a first inductor or a first capacitor, wherein the antenna body is connected to the tunable component; and a first filter and a second filter, wherein the first filter and the second filter are connected to the antenna body; wherein the first filter is connected in parallel with the tunable component, wherein a first end of the first filter is connected to the antenna body, and a second end of the first filter is connected to the ground, and wherein the first filter presents a high impedance characteristic in a low frequency band, and presents a low impedance characteristic in a high frequency band; and wherein the second filter is connected in series between the antenna body and the tunable component, wherein the second filter presents a low impedance characteristic in a low frequency band, and presents a high impedance characteristic in a high frequency band. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A terminal, comprising:
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an antenna system, comprising an antenna body having one or more connection points between the antenna body and a ground; a tunable component having a changeable operating parameter that is a capacitance or a inductance, wherein the tunable component comprises a first inductor or a first capacitor, wherein the antenna body is connected to the tunable component; and a first filter and a second filter, wherein at the first filter and the second filter are connected to the antenna body; wherein the first filter is connected in parallel with the tunable component, wherein a first end of the first filter is connected to the tunable component and the second filter, and a second end of the first filter is connected to the ground, and wherein the first filter presents a high impedance characteristic in a low frequency band, and presents a low impedance characteristic in a high frequency band; and wherein the second filter is connected in series between the antenna body and the tunable component, wherein the second filter presents a low impedance characteristic in a low frequency band, and presents a high impedance characteristic in a high frequency band. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An antenna system, comprising
an antenna body; -
a tunable component having a changeable operating parameter that is a capacitance or a inductance, wherein the tunable component comprises a first inductor or a first capacitor; a parasitic element; a first filter; a second filter; wherein the antenna body is connected to the tunable component through the second filter; wherein the first filter is connected in parallel to the tunable component, wherein a first end of the first filter is connected to the tunable component, and a second end of the first filter is connected to a ground, and wherein the first filter presents a first impedance property that is high impedance characteristic in a low frequency band, and that is a low impedance characteristic in a high frequency band; wherein the parasitic element is connected to the antenna body; and wherein the tunable component and the first end of the first filter are connected to the antenna body through the parasitic element. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification