Antenna tuning system, electronic equipment and antenna tuning method

Abstract

The embodiment of the invention discloses an antenna tuning system, electronic equipment and an antenna tuning method. The antenna tuning system comprises a tuning switch module, a processor, an antenna module and a resonance detection module, the tuning switch module comprises a plurality of different switch path states, and the tuning switch module is electrically connected with the processor and the antenna module; the processor is used for controlling the tuning switch module to be switched to each switch path state in sequence, so that the antenna module outputs a plurality of resonance signals in one-to-one correspondence with the plurality of switch path states in sequence; the resonance detection module is electrically connected with the processor; the resonance detection module isused for sequentially sensing each resonance signal output by the antenna module and sending the resonance signals to the processor; and the processor is also used for determining the optimal switching path state according to each resonance signal and controlling the tuning switch module to be switched to the optimal switching path state. The antenna tuning system can enable the antenna to achieve the optimal radiation performance in different use environments.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to an antenna tuning system, electronic equipment, and an antenna tuning method. Background technique [0002] With the rapid development of communication technology, mobile communication terminals such as mobile phones have become one of the indispensable tools in people's life. [0003] Taking a mobile phone as an example, the antenna is its device for transmitting and receiving radio waves (free electromagnetic waves). The transmitting and receiving of radio waves by the antenna is a reciprocal process. Taking the radio wave as an example, the working principle is that the high-frequency oscillating current (energy) output by the transmitter is conducted to the antenna through the feeder line, and the antenna converts it into a radio wave direction. surrounding space radiation. Among them, the feeder is a section of wire connecting the antenn...

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Problems solved by technology

[0004] However, the use scenarios of mobile phones are usually complex and changeable. When the mobile phone is held in the hand, in the pocket, placed on the table or attached to the face to make a call, due to the distance between the human body tissue or the metal object and the antenna radiator (the mobile phone The metal shell) is very close, causing the antenna impedance to change, which will cause the antenna impedance and the feeder impedance to no longer match under the current switch path state, causing the resonance frequency of the antenna to deviate and resulting in a decrease in the antenna radiation power

[0005] It can be seen that the currently used tuning mode, which corresponds to the signal frequency band and the switch path state one by one, does not take into account the impact of the usage scenario on the antenna impedance, and cannot make the antenna of the terminal device achieve optimal radiation in different usage scenarios. performance

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