Mobile phone and mobile phone built-in antenna dynamic tuning method and device

A built-in antenna and mobile phone technology, applied in the field of dynamic tuning of FM built-in antenna, can solve the problems of low receiving sensitivity and different receiving sensitivity, and achieve the effect of small size, improved receiving sensitivity and stable performance

Inactive Publication Date: 2010-10-20
深圳市经纬科技有限公司
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AI Technical Summary

Problems solved by technology

And the closer to the edge of the passband, the lower the receiver sensitivity
Therefore, the existing built-in antenna technology has the problem of different receiving sensitivities at different frequencies caused by the narrowing of the built-in antenna bandwidth

Method used

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  • Mobile phone and mobile phone built-in antenna dynamic tuning method and device
  • Mobile phone and mobile phone built-in antenna dynamic tuning method and device
  • Mobile phone and mobile phone built-in antenna dynamic tuning method and device

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Embodiment Construction

[0045] In the existing technical solutions, the best receiving point of the FM built-in antenna of the mobile phone is fixed, but this invention will make this point dynamically adjustable, and synchronize it with the FM channel currently to be listened to, so as to complete the dynamic tuning of the best sensitivity match. The present invention solves the problem of narrowing antenna bandwidth, and aims to further improve the receiving sensitivity of the antenna system itself.

[0046] figure 2 It is a structural schematic diagram of a mobile phone built-in FM radio according to the present invention. Such as figure 2 As shown, the mobile phone built-in FM radio of the present invention includes a mobile phone FM built-in antenna 1, an antenna dynamic matching circuit 2, a low noise amplifier 3, an FM radio chip 4 and a mobile phone baseband processor 5. Wherein, the antenna dynamic matching circuit 2 is connected to the built-in FM antenna 1 of the mobile phone, and is ...

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Abstract

The invention relates to a mobile phone, a mobile phone built-in antenna dynamic tuning method a mobile phone built-in antenna dynamic tuning device. The mobile phone built-in antenna dynamic tuning method comprises the following steps that: a mobile phone baseband processor receives a frequency channel selection signal; the mobile phone baseband processor controls an FM radio chip to be tuned to a selected frequency channel; and the mobile phone baseband processor adjusts an antenna dynamic matching circuit based on the selected frequency channel, so the antenna dynamic matching circuit reaches a tuning point of the selected frequency channel. In the invention, the mobile phone baseband processor controls the antenna dynamic matching circuit and the optimal received frequency point can be dynamically changed, so the optimal received frequency point is synchronous with the FM frequency channel to be listened to so as to realize the optimal sensitivity dynamic tuning and matching. Thus, the problem that the antenna wideband is narrowed is solved, and the receiving sensitivity of an antenna system is further improved.

Description

technical field [0001] The invention relates to communication equipment, more specifically, to a dynamic tuning method and device for an FM built-in antenna of an FM radio built in a portable communication equipment. Background technique [0002] With the development of communication networks and continuous expansion of services, mobile communication terminal devices such as mobile phones have become necessities for people's daily work and life. Users also have more and more functional requirements for mobile phones. For example, many users hope that the mobile phone is equipped with a radio function, so that they can listen to news or music in their spare time. As a result, mobile phone manufacturers have developed mobile phones with radio functions. At present, the antennas of mobile phone FM radios can be divided into two types: built-in antennas and external antennas. [0003] The external antenna uses the earphone cable, and the advantage of the external antenna is th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725H04B1/16
Inventor 吴明杰梁志湘
Owner 深圳市经纬科技有限公司
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