A method and terminal for controlling the radiation frequency of an antenna device
An antenna device and radiation frequency technology, which is applied in the electronic field, can solve problems such as the bandwidth limitation of the antenna body, the relatively high requirements for the overall machine structure, and the difficulty in adapting to the trend of thinness, etc., to achieve the effect of reducing power consumption and increasing the frequency range
Active Publication Date: 2017-12-12
COOLPAD SOFTWARE TECH (SHENZHEN) CO LTD
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Problems solved by technology
[0003] In the existing technical solutions, the following methods are provided to adjust the frequency of the antenna radiating electromagnetic waves: first, several antennas are connected through a single-pole multi-throw switch, and the selection is made according to the judgment selection mechanism, but since multiple antennas are required, the whole machine The structural requirements are relatively high, and it is difficult to adapt to the current mainstream trend of thinness; (2) Second, the antenna body remains unchanged, and the resonant frequency point of the antenna is changed by means of variable capacitors and switches on the matching circuit, but the antenna body does not change. There is a certain limit in bandwidth; (3) For the radiator of the antenna body, different grounding points are controlled by switches for reconstruction, or antenna reconstruction is performed through external parasitic units or coupling units, but it is rarely used on the metal frame of mobile phones at present
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] Please refer to figure 1 , figure 1 It is a flow chart of the first embodiment of a method for controlling the radiation frequency of an antenna device proposed by the present invention. Among them, such as figure 2 As shown, the antenna device includes an antenna body 01 or an antenna body 02, a core control board 09 and a substrate 07, the core control board 09 and the antenna body 01 or the antenna body 02 are arranged on the substrate 07,...
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The embodiment of the present invention discloses a method and terminal for controlling the radiation frequency of an antenna device. The plurality of microstrip lines are connected to each other to obtain a plurality of control interval line segments, and one of the switches is set on each control interval line segment in the plurality of control interval line segments; the control state parameters of the plurality of switches are obtained; according to the According to the control state parameters of the plurality of switches, on-off control is performed on the plurality of switches to adjust the routing paths of the plurality of microstrip lines; according to the adjusted routing paths of the plurality of microstrip lines, control the The frequency at which the antenna body radiates electromagnetic waves. By adopting the embodiments of the present invention, the frequency range of electromagnetic waves radiated by the terminal can be increased, and the power consumption of electromagnetic waves radiated by the terminal can be reduced.
Description
technical field [0001] The present invention relates to the field of electronic technology, in particular to a method and a terminal for controlling the radiation frequency of an antenna device. Background technique [0002] The antenna is the device used to receive signals on the terminal. At present, there are mainly two types of terminal antennas: built-in antenna and external antenna. The built-in antenna is objectively weaker than the external antenna. Antennas are erected as far away from the ground and buildings as possible. When the antenna is close to the reference ground, most of the energy will be concentrated between the antenna and the reference ground, and it cannot be transmitted smoothly. Therefore, the antenna needs a "as open as possible" space for transmission. . The terminal circuit board is the reference ground of the terminal antenna. Keeping the antenna away from other circuits of the terminal is the key to improving the transmission efficiency of the...
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IPC IPC(8): H01Q23/00
Inventor 王吉钊刘豫青李克刘家荣
Owner COOLPAD SOFTWARE TECH (SHENZHEN) CO LTD