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Antenna device

A technology of antenna device and antenna radiator, which is applied in the direction of antenna, antenna coupling, antenna array, etc., can solve the problem of insufficient clearance area between the antenna and the antenna, and achieve the effect of reducing influence and increasing isolation

Inactive Publication Date: 2012-06-20
QISDA SUZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under the premise that today's wireless communication devices are light, thin, and small in size, there is usually not enough space to accommodate two sets of antennas whose polarization directions are perpendicular to each other, and the distance between the antennas is too close to cause insufficient antenna headroom.

Method used

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Examples

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Embodiment Construction

[0018] In the antenna device of this embodiment, a metal strip resonates in the frequency band to be isolated to generate a transmission null point (null), so as to increase the antenna isolation of the frequency band, and the length of the metal strip can be shortened by adjusting elements to reduce the interference The influence of the antenna clearance area can achieve a good antenna radiation effect.

[0019] The antenna device of this embodiment can be applied to mobile communication systems and global satellite positioning systems, such as mobile phones with satellite navigation functions or wireless communication devices integrating mobile Internet access, Bluetooth communication and satellite navigation functions. Various embodiments are proposed below for detailed description, and the embodiments are only used as examples for illustration, and are not intended to limit the scope of protection of the present invention.

[0020] Please refer to figure 1 and figure 2 ...

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Abstract

The invention relates to an antenna device. The antenna device comprises a circuit board, a first antenna radiator, a second antenna radiator, a metal band and a regulating element, wherein the circuit board is provided with a grounding plane; the first antenna radiator is operated in a first bandwidth and is provided with a first feed end; the first feed end feeds in a first radio frequency signal from the circuit board; the second antenna radiator is operated in a second bandwidth and is provided with a second feed end; the second feed end feeds in a second radio frequency signal from the circuit board; the metal band is arranged between the first antenna radiator and the second antenna radiator; and the regulating element is coupled between the metal band and the grounding plane to regulate the length of the metal band, so that the metal band resonates in a frequency band to be isolated to generate a transmission zero. The antenna device is applicable to wireless communication.

Description

【Technical field】 [0001] The present invention relates to an antenna device, and more particularly to an antenna device that increases the isolation between antennas. 【Background technique】 [0002] At present, the use of wireless communication devices is very common. Unlike in the past, they were only used to answer calls or send text messages. In order to meet the needs of users, more functions such as Bluetooth transmission, mobile Internet access or satellite navigation have been integrated into a single wireless communication device. As a trend, it is an inevitable design for a single wireless communication device to be equipped with multiple sets of antennas. Correspondingly, the problem that must be faced is the mutual interference between the antennas. [0003] In the past, to solve the problem of mutual interference between antennas, two sets of antennas whose polarization directions are perpendicular to each other were mostly designed to reduce the degree of interf...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H01Q21/00
Inventor 侯登榜
Owner QISDA SUZHOU
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