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A kind of antenna and terminal

An antenna and mobile terminal technology, which is applied in the field of antennas and terminals, can solve problems such as narrow antenna bandwidth and cannot meet application requirements, and achieve the effect of expanding bandwidth

Active Publication Date: 2016-09-28
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the low-frequency resonant frequency of the above-mentioned adjustable antenna depends on the length of the long branch of the low-frequency radiator in the radiator, and the length of the radiator will affect the overall volume of the antenna. Narrow, can not meet the application requirements

Method used

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  • A kind of antenna and terminal
  • A kind of antenna and terminal
  • A kind of antenna and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The antenna provided by Embodiment 1 of the present invention is applicable to GSM900 / 1800 / 1900 and WCDMA2100.

[0062] Figure 6 Shown is the antenna provided by Embodiment 1 of the present invention, including a capacitor component, two radiators BN 1 、BN 2 and a matching circuit M where:

[0063] The capacitor component is specifically a variable capacitor VAC;

[0064] Radiator BN 1 One end of the radiator BN 2 One end of the variable capacitor VAC and one end of the variable capacitor VAC are connected to each other, and the connected node is used as the ground terminal G of the antenna;

[0065] The other end of the variable capacitor VAC is connected to one end of the matching circuit M, and the other end of the matching circuit M is used as the signal feeding end F of the antenna.

[0066] In the antenna provided in Embodiment 1 of the present invention, the variable capacitor VAC and the distributed inductance of the ground wire generate a low-frequency r...

Embodiment 2

[0073] The antenna provided by Embodiment 2 of the present invention is applicable to GSM / DCS / PCS / WCDMA / LTE.

[0074] Figure 7 Shown is the antenna provided by Embodiment 2 of the present invention, including a capacitor component, three radiators BN 1 、BN 2 、BN 3 , a matching circuit M and an adjustable circuit, where:

[0075] The capacitor component is specifically a non-variable capacitor C 1 , the adjustable circuit is specifically a variable capacitor VAC;

[0076] Radiator BN 1 One end of the radiator BN 2 One end of the radiator BN 3 One end of the variable capacitor VAC, one end of the non-variable capacitor C 1 One end and five ends are connected;

[0077] Non-variable capacitor C 1 The other end of the matching circuit M is connected to one end of the matching circuit M, and the other end of the matching circuit M is used as the signal feeding end F of the antenna;

[0078] The other end of the variable capacitor VAC is used as the ground terminal G of t...

Embodiment 3

[0086] Embodiment 3 of the present invention also provides a terminal, including figure 2 , image 3 , Figure 6 or Figure 7 Either of the antennas shown.

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PUM

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Abstract

The invention discloses an antenna and a terminal, which can expand the bandwidth of the antenna. The antenna includes a capacitor component and at least one radiator, wherein: one end of each radiator in the at least one radiator is connected to form a first node, the first node is connected to one end of the capacitor component to form a second node, and the first node is connected to one end of the capacitor component to form a second node. The two nodes are grounded; the other end of the capacitor component receives the feed-in signal.

Description

technical field [0001] The present invention relates to communication technology, in particular to an antenna and a terminal. Background technique [0002] The terminals in the mobile communication network need to transmit and receive signals through antennas. With the development and application of technology, the antenna bandwidth of terminal products needs to cover more frequency bands. At the same time, in order to pursue the beauty of the appearance of the terminal product, the space reserved for the antenna is getting smaller and smaller. Obviously, traditional passive antennas are difficult to meet the requirements of application scenarios, and people are beginning to pay more and more attention to adjustable antennas that combine passive antennas and adjustable components. [0003] An adjustable antenna based on an IFA (Inverted-F Antenna, inverted F-type antenna) architecture in the prior art is as follows: figure 1 As shown, the IFA is a classic passive antenna....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q5/01H01Q1/36
CPCH01Q5/335H01Q9/42H01Q5/328H01Q1/243H01Q9/0421H04M1/026H01Q1/48
Inventor 李建铭王汉阳冯堃张晓菊
Owner HUAWEI DEVICE CO LTD
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