Antenna adjusting method and device

An adjustment method and antenna tuner technology, applied to antennas, devices and electrical components that make the antennas work in different frequency bands at the same time, can solve the problems of affecting the state of the antenna, poor efficiency, poor signal, etc., so as to reduce the impact and ensure the mobile phone The effect of signal strength

Inactive Publication Date: 2018-01-05
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the bandwidth is not enough, the efficiency may be poor in some frequency bands, which means that the signal of certain frequency bands or channels of mobile phones is poor
In actual use, the environment in which the antenna is located is more complicated, and holding it by hand, plugging in a USB, etc. will affect the state of the antenna

Method used

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  • Antenna adjusting method and device
  • Antenna adjusting method and device
  • Antenna adjusting method and device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0064] Example 1: Adjust the working frequency band of the antenna of the mobile terminal to a certain set working frequency band, and insert an earphone into the mobile terminal. Then, adjust the antenna tuner capacitance value, inductance value or number of switches, etc., and detect the working efficiency of the antenna of the mobile terminal. When it is tested that the working efficiency of the antenna of the mobile terminal is the highest, the capacitance value, inductance value or number of switches of the antenna tuner at this time is selected as the first matching state of the antenna tuner. The corresponding relationship between setting the working frequency band, inserting the earphone of the mobile terminal and the first matching state is recorded.

example 2

[0065] Example 2: Adjust the working frequency band of the antenna of the mobile terminal to a certain set working frequency band, and determine that the mobile terminal is not plugged into an earphone. Then, adjust the antenna tuner capacitance value, inductance value or number of switches, etc., and detect the working efficiency of the antenna of the mobile terminal. When it is tested that the working efficiency of the antenna of the mobile terminal is the highest, the capacitance value, inductance value or number of switches of the antenna tuner at this time is selected as the second matching state of the antenna tuner. Record the correspondence between the set working frequency band, the absence of earphones inserted into the mobile terminal, and the second matching state.

example 3

[0066] Example 3: Adjust the working frequency band of the antenna of the mobile terminal to a certain set working frequency band, and insert a USB interface device into the mobile terminal. Then, adjust the antenna tuner capacitance value, inductance value or number of switches, etc., and detect the working efficiency of the antenna of the mobile terminal. When it is tested that the working efficiency of the antenna of the mobile terminal is the highest, the capacitance value, inductance value or number of switches of the antenna tuner at this time is selected as the third matching state of the antenna tuner. The corresponding relationship between setting the working frequency band, inserting the mobile terminal into the USB interface device and the third matching state is recorded.

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Abstract

The present disclosure relates to an antenna adjusting method and device. The method may comprise the following steps: determining a working frequency band of an antenna of a mobile terminal; determining a connection state between the mobile terminal and an external device; determining, based on the determined working frequency band of the antenna and the determined connection state, a target matching state of an antenna tuner in a pre-configured matching state corresponding relationship, wherein the matching state corresponding relationship comprises the corresponding relationship among eachworking frequency band of the antenna, each connection state between the mobile terminal and the external device, and each matching state of the antenna tuner; and adjusting the resonant frequency ofthe antenna based on the determined target matching state of the antenna tuner. According to the method and the device provided by the present disclosure, the target matching state of the antenna tuner is determined in the pre-configured matching state corresponding relationship based on the working frequency band of the mobile terminal and the connection state between the mobile terminal and theexternal device, and the mobile phone antenna can be adjusted to the optimized resonant frequency via the antenna tuner.

Description

technical field [0001] The present disclosure relates to wireless communication technologies, and in particular to an antenna adjustment method and device. Background technique [0002] With more and more frequency bands supported by mobile phones, and more and more mobile phones with metal back covers, the design of mobile phone antennas is becoming more and more difficult. The antenna state of the mobile phone is fixed, and the efficiency at a specific frequency point is fixed. If the bandwidth is not enough, the efficiency may be poor in some frequency bands, which means that the signal of certain frequency bands or channels of the mobile phone is poor. In actual use, the environment in which the antenna is located is more complicated, and holding it by hand, plugging in a USB, etc. will affect the state of the antenna. [0003] The antenna tuner (tuner) is an impedance matching network connecting the transmitter and the antenna. It can match the impedance between the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/401H04B1/00H01Q5/50
Inventor 谷务成
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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