LTE band mobile phone antenna based on metal frame

Abstract

The invention discloses a metal frame-based LTE frequency band mobile phone antenna. The metal frame-based LTE frequency band mobile phone antenna mainly adopts a metal frame close to the periphery of the mobile phone body, and the metal frame is symmetrically provided with first gaps and In the second gap, an accommodating cavity is provided between the ground plate and the metal frame, and an antenna structure is accommodated in the accommodating cavity; the antenna structure includes a long branch antenna, a short branch antenna, a parasitic antenna, and a feeder , the first resonant branch and the second resonant branch, one end of the feeding part is in contact with the ground plate, the other end of the feeding part extends to the bottom of the metal frame and contacts the metal frame; the parasitic antenna is in contact with the ground plate, One end of the second resonant branch is in contact with the feeder, the other end of the second resonant branch is suspended, and the first resonant branch is in contact with the metal frame. The invention has the advantages of simple structure, good communication quality, cost saving and convenient improvement of production efficiency.

Description

technical field [0001] The invention relates to a mobile phone antenna, in particular to a metal frame-based LTE frequency band mobile phone antenna. Background technique [0002] With the continuous development of the LTE technology, more and more mobile terminals begin to support the LTE frequency band. The requirements for the LTE frequency band are: the low-frequency bandwidth of the antenna is 698-960MHz, and the high-frequency bandwidth is 1710-2690MHz. The bandwidth design of most antennas in the prior art has a bandwidth range of 824-960 MHz for low frequencies and 1710-2170 MHz for high frequencies. The bandwidth design of conventional antennas cannot meet the requirements of the LTE frequency band. At the same time, in order to increase the aesthetic requirements, more and more mobile phone manufacturers intend to design thinner mobile phones and use metal decorative frames. Due to the characteristic requirements of the antenna, the antenna parameters are greatly...

AI Technical Summary

Problems solved by technology

Although many mobile phones on the market have metal frames, most mobile phone antennas do not support the LTE frequency band, and only a small part of the antenna can support the LTE frequency band, but the structure of this part of the antenna design is complicated and not easy to manufacture. increase production cost

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