Antenna radiation system and communication terminal

Abstract

The invention discloses an antenna radiation system and a communication terminal. The antenna radiation system includes a component area and an antenna clearance area. In the component area, a metal area serving as a reference ground is provided with a gap, and the gap is provided with a device for switching on or off the original current. The switch of the return path, when the switch disconnects the original current return path, the current flows through the edge of the gap to extend the return path of the reference ground current. When the switch is turned off, the reference ground current can no longer flow through the original current return path, but flows along the edge of the gap, so that the length and direction of the current current return path change. Therefore, the combination of switches in the gap not only increases The effective length of the reference ground is increased, and the direction of the reference ground current is also changed, so that the omnidirectional radiation of the antenna is improved. Obviously, the antenna radiation system does not need to change the antenna wiring, the design difficulty is greatly reduced, it is not limited by the size of the component area, and the flexibility is higher.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an antenna radiation system and a communication terminal. Background technique [0002] With the rapid development of communication terminals, the integration of multiple antennas is becoming more and more common, for example, MIMO WIFI (Multiple Input Multiple Output Wireless Fidelity) antennas, etc., because these antennas have the same frequency and are not compatible, so they need their own Antenna implementation. However, in miniaturized communication terminals, the size of the reference ground is limited, usually very small, which will cause the antenna to fail to achieve omnidirectional radiation, resulting in weak radiation signals in a certain direction. [0003] In order to improve the omnidirectional radiation of the antenna, in the prior art, the method of changing the antenna routing is usually used, but the method of changing the antenna routing is limited by the ...

AI Technical Summary

Problems solved by technology

However, in miniaturized communication terminals, the size of the reference ground is limited, usually very small, which will cause the antenna to fail to achieve omnidirectional radiation, resulting in weak radiation signals in a certain direction

[0003] In order to improve the omnidirectional radiation of the antenna, in the prior art, the method of changing the antenna routing is usually used, but the method of changing the antenna routing is limited by the size of the antenna radiation system, and the improvement effect on the miniaturized communication terminal not ideal

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