LTE (Long Term Evolution) carrier aggregation antenna of portable equipment with full-metal shell

Abstract

The invention discloses an LTE (Long Term Evolution) carrier aggregation antenna of portable equipment with a full-metal shell. The antenna comprises a body, a grounding plate, a metal ring, an antenna component and a metal rear cover, wherein the metal ring is symmetrically provided with a first slot and a second slot; the metal ring is divided into a metal ring upper section and a metal ring lower section by the first slot and the second slot; the metal rear cover is provided with a third slot and is divided into a first metal cover body and a second metal cover body by the third slot; the antenna component comprises a radiation main body, a first feed part, a second feed part, a band pass filter, a low-frequency matching module with a filter or duplexer function and a high-frequency matching module; the radiation main body is the metal ring lower section and the second metal cover body; the first feed part is connected with the radiation main body through the high-frequency matching module; the second feed part is connected with the radiation main body through the low-frequency matching module. According to the out-band carrier aggregation antenna capable of supporting an LTE-A (Long Term Evolution-Advanced) technology, the data transmission rate is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of antennas, in particular to an LTE carrier aggregation antenna with a full metal shell portable device. 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 adopt an all-metal casing design structure, and the all-metal casing includes a metal ring and a metal back cover. Recently, mobile phone solutions based on all-metal s...

AI Technical Summary

Problems solved by technology

However, compared with the HTC One, the iPhone 6 needs to open two gaps in the antenna area corresponding to the metal back cover, which will affect the appearance of the phone

[0004] On the other hand, both HTC One and iPhone6 ​​mobile phones have the following two disadvantages: 1. In order to cover all LTE frequency bands, a switch needs to be added. Specifically, the bandwidth of the LTE low frequency band (698–960MHz) is divided into multiple sub-bands by using the switch

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

In addition, considering the communication performance of the antenna, the mobile phone antenna design with a full metal case is more difficult to realize than the design with a metal frame

[0006] The antenna design structures of HTC One and iPhone 6 mobile phones are based on a single feeder antenna solution, which is not suitable for out-of-band carrier aggregation. At the same time, because the two need to set switches, there will be band gaps when the switches divide the frequency bands, and even non-continuous ones cannot be supported. In-band carrier aggregation

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