Broadband 5G MIMO mobile phone antenna based on orthogonal mode pair

Abstract

Disclosed is a broadband 5G MIMO mobile phone antenna based on an orthogonal mode pair. The antenna comprises a metal floor, a metal frame, and one or more orthogonal antenna pairs, wherein one or more floor gaps are formed in the long edge of the metal floor; the four sides of the metal frame are closed, and an even number of frame gaps are formed in the metal frame; and each group of orthogonalantenna pairs comprises two antenna units, wherein the antenna unit comprises a central feeding branch, a first side feeding branch, a second side feeding branch, a first coupling branch and a secondcoupling branch. The two antenna units in the orthogonal antenna pair are in an orthogonal mode, so that high isolation characteristics can be realized under the integration of double antennas. In addition, the metal frame and the multi-mode cooperative work and the like are adopted for further broadening the bandwidth of the antenna units. The antenna has the advantages of being wide in broadband, compatible with the metal frame, high in isolation degree, small in clearance, integrated in a double-antenna mode and the like, and is suitable for the 5G MIMO antenna of various small mobile terminals with mobile phones as representatives.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a 5G MIMO mobile phone antenna, in particular to a broadband 5G MIMO mobile phone antenna based on an orthogonal pattern pair. Background technique [0002] With the rapid development of mobile communication services, the traditional fourth-generation (4G) mobile communication system has been unable to meet the increasing requirements of communication rate, capacity, and delay. In order to further increase the communication rate, expand the communication capacity and reduce the communication delay, the fifth generation (5G) mobile communication system has begun to deploy multiple-input multiple-output (MIMO) in the frequency band below 6GHz (Sub-6GHz) in mobile terminal devices such as mobile phones and tablets. MIMO) antennas. MIMO technology establishes multiple independent data streams through multiple isolated transceiver antennas, so the capacity of the communication system ...

AI Technical Summary

Problems solved by technology

However, the existing 5G MIMO mobile phone antenna technology, such as patent [CN108511890A] and literature ["Two Asymmetrically Mirrored Gap-Coupled Loop Antennasas a Compact Building Block for Eight-Antenna MIMO Array in the FutureSmartphone", Kin-Lu Wong et al., " IEEE Transactions on Antennas and Propagation, Volume 65, April 2017] are all narrowband antennas, which cannot completely cover the global 5G standard frequency band, and do not consider the impact of the metal frame of the mobile phone on the antenna, so they cannot be directly applied to mainstream metal frame smartphones

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