LTE (Long Term Evolution) carrier aggregation antenna for portable type equipment with metal framework

Abstract

The invention discloses an LTE (Long Term Evolution) carrier aggregation antenna for portable type equipment with a metal framework. The LTE carrier aggregation antenna comprises a shell, a grounding plate, the metal framework and an antenna assembly, wherein the metal framework is symmetrically provided with a first gap and a second gap; the metal framework is divided into an upper frame section and a lower frame section by the first gap and the second gap; the antenna assembly comprises a radiation main body, a first feed part, a second feed part, a band-pass filter, a low-frequency matching module and a high-frequency matching module; the radiation main body is the upper frame section; the first feed part and the second feed part are located in an antenna clearance zone; the first feed part and the second feed part are parallel to each other; the first feed part is connected with the radiation main body by the low-frequency matching module; the second feed part is connected with the radiation main body by the high-frequency matching module. The LTE carrier aggregation antenna can support an out-of-band carrier aggregation antenna of an LET-A technology, the data transmission rate is extremely improved and the communication performance is good.

Description

technical field [0001] The present invention relates to the technical field of antennas, in particular to an LTE carrier aggregation antenna for a portable device with a metal frame. Background technique [0002] With the rapid development of the LTE technology, more and more portable devices begin to support the LTE technology. In LTE antenna design, the antenna bandwidth requirements are: the low frequency bandwidth range is 698-960MHz, and the high frequency bandwidth range is 1710-2690MHz. A MIMO antenna is required in common LTE technologies. In order to further improve data transmission efficiency, LTE-A technology also needs to use carrier aggregation antennas. [0003] On the one hand, in order to increase the aesthetic effect of the outer surface of the mobile device, designers have begun to widely use metal decorative frames as frames. Recently, antenna structures based on metal frames have appeared on the market, but in most antenna structures based on metal fr...

AI Technical Summary

Problems solved by technology

This requires that duplexers in different frequency bands must be synchronized or matched, but the synchronization or matching scheme of duplexers in different frequency bands is difficult to achieve

[0005] For the vast majority of LTE antennas used by mobile devices, the antenna scheme based on a single feeder is not suitable for out-of-band carrier aggregation and complex structures. It is necessary to further improve the antenna structure of the above-mentioned portable devices

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