Multi-band coverage antenna structure of mobile communication terminal based on grid structure

Abstract

The invention discloses a multi-frequency band covering antenna structure of a mobile communication terminal based on a grid structure, which is arranged on the upper end surface of the mobile communication terminal and is a grid metal frame structure. The outer frame size of the grid metal frame is consistent with the upper end surface outline size of the mobile communication terminal shell. Themesh metal frame comprises a plurality of columns equally distributed along the short side direction of the upper end face and the long side direction of the upper end face, a longitudinal horizontalbar and a transverse horizontal bar connecting all the upright columns, the longitudinal horizontal bar and the upright columns forming a plurality of rectangular sub-grids of the same size in a vertical plane, the longitudinal horizontal bar and the transverse horizontal bar forming one layer of the grid metal frame, the grid metal frame comprising at least two layers. The invention is applied toa multi-frequency band antenna system of a terminal, realizes joint coverage of a plurality of frequency points through a metal grid structure, and can well cover radiation requirements of a plurality of frequency bands.

Description

【Technical field】 [0001] The invention belongs to the technical field of communication, and in particular relates to a multi-band coverage antenna structure for a mobile communication terminal based on a grid structure. 【Background technique】 [0002] The fifth generation of mobile communication (5G for short) is currently being extensively researched all over the world. The fifth-generation mobile communication can be divided into two categories according to the frequency band requirements of communication: one is the sub-6GHz range, and the specific frequency bands that have been filed by the Ministry of Industry and Information Technology of China are 3.4-3.6GHz and 4.8-5.0GHz, and the basic demand indicators have been clearly defined The channel capacity of communication within this range reaches 10Gbps / s; another category is millimeter wave band communication (the so-called millimeter wave communication means that the actual wavelength of the electromagnetic wave for co...

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Problems solved by technology

[0003] In the future, the terminal system in 5G communication not only needs to have antennas working in the 5G frequency band, but also needs to ensure compatibility with the communication frequency bands of the second, third and fourth generation mobile communications. For antenna design, more antennas need to be designed to cover the second , 3, 4, and 5 generations of mobile communication all frequency bands, currently there is no clear plan for the design of this antenna

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