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Mobile terminal compatible with internal antenna and external antenna

A technology of external antenna and built-in antenna, which is applied to the structure of telephones, etc., can solve the problems of poor reception quality of the built-in antenna, and achieve the effect of enhancing the quality of reception and improving the experience effect

Active Publication Date: 2012-11-14
HUIZHOU TCL MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the performance of the CMMB built-in antenna is much worse than that of the external telescopic antenna, the built-in antenna can basically meet the needs of users to receive CMMB signals and watch mobile TV programs in places with good CMMB signal coverage. In places with poor CMMB signal coverage, the built-in antenna The shortcomings of poor reception quality will be more prominent

Method used

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  • Mobile terminal compatible with internal antenna and external antenna
  • Mobile terminal compatible with internal antenna and external antenna
  • Mobile terminal compatible with internal antenna and external antenna

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Embodiment Construction

[0027] Based on the good performance of the CMMB external whip antenna, a good user experience can be obtained in terms of CMMB signal reception, but it does not meet the market demand of terminal miniaturization and thinning; and the CMMB internal antenna is conducive to the miniaturization of terminal products and caters to the aesthetic point of view However, under current technical conditions, the performance of the built-in antenna can only reach about 10% to 40% of that of the external whip antenna.

[0028] The present invention combines the advantages and disadvantages of the above-mentioned CMMB external whip antenna and built-in antenna to provide a mobile terminal compatible with the functions of the built-in antenna and the external antenna, and simultaneously realizes the design of compatibility between the CMMB internal antenna and the external whip antenna on the mobile terminal In this way, users can selectively use the CMMB built-in antenna reception mode or the e...

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Abstract

The invention discloses a mobile terminal compatible with an internal antenna and an external antenna. The mobile terminal comprises the internal antenna, an internal antenna matching module, an external antenna matching module, a socket interface, a CMMB (China mobile multimedia broadcasting) signal processing module, a CPU (central processing unit) processing module and a switching module. The CPU processing module is used for detecting whether the external antenna is plugged into the socket interface or not, outputting corresponding high-low level signals to control the on state of the switching module and outputting high level when the external antenna is plugged into the socket interface to enable a path between the external antenna matching module and the CMMB signal processing module to be on by the aid of the switching module, so that CMMB signal receiving quality is improved. In places with good CMMB signal coverage, the external antenna does not need to be plugged into the socket interface, and the CPU processing module is used for outputting low level, so that a path between the internal antenna matching module and the CMMB signal processing module is on by the aid of the switching module. User experience effects are improved without affecting integral attractiveness of the mobile terminal.

Description

Technical field [0001] The invention relates to the technical field of antenna design for electronic products, and in particular to a mobile terminal compatible with the functions of an internal antenna and an external antenna. Background technique [0002] CMMB (China Mobile Multimedia Broadcasting, China Mobile Multimedia Broadcasting) multimedia broadcasting is a domestic mobile TV business standard operated by China Radio and Television Group. CMMB works in a frequency range of 470 to 798 MHz, with a lower working frequency and a wider bandwidth. In terms of antenna theory, the maximum bandwidth that an antenna can achieve is proportional to the space occupied by the antenna. Therefore, when designing a CMMB antenna, to obtain a bandwidth that covers the working frequency band of the CMMB, sufficient space must be reserved for the antenna. Therefore, the traditional CMMB mobile phone antenna adopts the whip antenna design method, as follows figure 1 Shown. The whip antenna ...

Claims

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Application Information

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IPC IPC(8): H04M1/02
Inventor 苏海波张福林
Owner HUIZHOU TCL MOBILE COMM CO LTD
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