Method and terminal for controlling radiation frequency of antenna apparatus

Abstract

An embodiment of the present invention discloses a method and a terminal for controlling radiation frequency of an antenna apparatus. The antenna apparatus is characterized in that a core control small plate and an antenna body are arranged on a substrate, the core control small plate comprises a plurality of microstrip lines and a plurality of switches, the plurality of microstrip lines are connected with each other to form a plurality of control interval segments, and each control interval segment of the plurality of control interval segments is provided with one switch. The method comprises the steps of: obtaining control state parameters of the plurality of switches; performing on-off control for the plurality of switches according to the control state parameters of the plurality of switches so as to adjust routing paths of the plurality of microstrip lines; and controlling the frequency of electromagnetic waves radiated by the antenna body according to the adjusted routing paths of the plurality of microstrip lines. According to the method and the terminal in the embodiment of the present invention, the frequency range of electromagnetic waves radiated by the terminal can be raised, and power consumption of the terminal for radiating the electromagnetic waves 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...

AI Technical Summary

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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