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Antenna device and wireless communication device having the antenna device

An antenna device and antenna technology, which are applied in wireless communication, antenna supports/installation devices, and devices that enable antennas to work in different frequency bands at the same time, can solve problems such as the inability of antennas to achieve signal reception quality

Inactive Publication Date: 2019-05-21
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These antennas have a single polarization direction. When in use, due to the multipath (Multipath) phenomenon caused by buildings or other obstacles, these antennas with a single polarization direction cannot achieve good signal reception quality.

Method used

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  • Antenna device and wireless communication device having the antenna device
  • Antenna device and wireless communication device having the antenna device
  • Antenna device and wireless communication device having the antenna device

Examples

Experimental program
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Embodiment Construction

[0016] see figure 1 and figure 2 , the antenna device of the present invention is applied to wireless communication devices such as mobile phones and tablet computers. An antenna device 10 in a preferred embodiment of the present invention includes a circuit board 11 , a first antenna 13 , a second antenna 15 , a radio frequency circuit 17 and a controller 19 . The first antenna 13 , the second antenna 15 , the radio frequency circuit 17 and the controller 19 are all disposed on the circuit board 11 . In this embodiment, both the first antenna 13 and the second antenna 15 are monopole antennas.

[0017] The first antenna 13 includes a first feeding portion 131 and a first radiation portion 133 . The first feeding portion 131 is perpendicular to the plane of the circuit board 11 and is electrically connected to the radio frequency circuit 17 . The first radiating part 133 includes a first radiating arm 1331 and a second radiating arm 1333 connected to each other. The plan...

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PUM

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Abstract

Provided is an antenna device which comprises a controller, a radio frequency circuit, a first antenna and a second antenna. The first antenna comprises a first radiation part and a first feed part. The second antenna comprises a second radiation part and a second feed part. The first radiation part and the second radiation part are arranged in a spacing way and parallel with each other. The projection, which is arranged on the plane on which the first radiation part is positioned, of the second radiation part is partially overlapped with the first radiation part. The radio frequency circuit is used for outputting a first current signal to the first feed part and outputting a second current signal to the second feed part. The controller is used for adjusting phase difference between the first current signal and the second current signal so as to adjust direction of polarization of the antenna device. The invention also relates to a wireless communication device with the antenna device.

Description

technical field [0001] The invention relates to an antenna, in particular to an antenna device with adjustable polarization direction and a wireless communication device with the antenna device. Background technique [0002] In a communication system, if the polarization direction of the signal receiving antenna is the same as the polarization direction of the received electromagnetic wave, a good signal reception effect can be achieved, otherwise, the reception quality will be affected. [0003] Current wireless communication devices generally use picofarad (PIFA) antennas or monopole (Monopole) antennas to transmit and receive signals. These antennas all have a single polarization direction. When in use, due to the multipath phenomenon caused by buildings or other obstacles, these antennas with a single polarization direction cannot achieve good signal reception quality. Contents of the invention [0004] In view of the above problems, it is necessary to provide an ante...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q5/00H01Q1/22H04W88/02
Inventor 卢俊宇
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD