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wireless communication device

A technology for wireless communication devices and antennas, which is applied to antenna coupling, transmission systems, electrical components, etc., and can solve problems such as reducing the efficiency of wireless signals and affecting call quality.

Active 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

Due to the overlap of the two frequency bands, when the wireless communication device is used, there will be a problem of antenna isolation. Usually, the GSM system will affect the use of the CDMA system, resulting in a decrease in the efficiency of the CDMA system for transmitting and receiving wireless signals and affecting the quality of calls.

Method used

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Embodiment Construction

[0011] see figure 1 , a preferred embodiment of the present invention provides a wireless communication device 100, which can be a mobile phone, a personal digital assistant (PDA), a tablet computer, and the like. The wireless communication device 100 can work in different systems, such as GSM system, Time Division-Synchronous Code Division Multiple Access (TDSCDMA) system and CDMA system. In this embodiment, the wireless communication device 100 working in both the GSM system and the CDMA system is taken as an example for introduction.

[0012] The wireless communication device 100 includes a processor 10 , a transmitter 20 , a radio frequency front end 30 , an adjustment unit 40 , a matching circuit 50 , a first antenna 60 and a second antenna 70 . In this embodiment, the first antenna 60 is a GSM antenna, which is arranged at one end of the wireless communication device 100, and the working frequency band is about 880-960MHz; the second antenna 70 is a CDMA antenna, which ...

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Abstract

The invention provides a wireless communicator. The wireless communicator comprises a first antenna, a second antenna, a processor, an adjusting unit and a matching circuit, wherein the processor is electrically connected with the adjusting unit, the adjusting unit is electrically connected with the first antenna through the matching circuit, and the processor is used for outputting high or low level according to strength of received signals of the second antenna so as to change or maintain circuit parameters of the adjusting unit, so that the adjusting unit and the matching circuit jointly adjust impedance of the first antenna. The wireless communicator can effectively improve isolation degree of the antenna.

Description

technical field [0001] The present invention relates to a wireless communication device, in particular to a wireless communication device capable of improving the isolation of dual antennas. Background technique [0002] Currently, some wireless communication devices use a dual-mode system, such as a Global System for Mobile Communication (GSM) system and a Code Division Multiple Access (CDMA) system. Among them, the frequency band of the GSM system is about 880-960 MHz, and the frequency band of the CDMA system is about 824-894 MHz. Due to the overlap of the two frequency bands, when the wireless communication device is used, there will be a problem of antenna isolation. Usually, the GSM system will affect the use of the CDMA system, resulting in a decrease in the efficiency of the CDMA system for transmitting and receiving wireless signals and affecting the quality of calls. Contents of the invention [0003] In view of the above, it is necessary to provide a wireless c...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H04B1/18
Inventor 董行
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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