Broadband millimeter wave antenna array for thin 5G and next-generation mobile terminal

Abstract

The embodiment of the invention provides a broadband millimeter wave antenna array for thin 5G and next-generation mobile terminals. Four E-shaped patches are used as the middle layer patch, and a rectangular patch is used as the top patch. Moreover, each corner of the rectangular radiation sheet body of each E-shaped patch and each corner of each rectangular patch are respectively provided with anotch, so that the notches arranged on each layer of patches in the double-layer patches can reduce the material used by the antenna, and the bandwidth of the antenna array can be expanded through the notches. Moreover, compared with the related art, the dual-layer 5G antenna array based on the Butler matrix feed network with the broadband patch antenna element works in a relatively wide frequency band, but the return loss is relatively low. The port structure used as the short-circuit pin is added between the metal ground and the middle layer patch, so that the bandwidth of the antenna arrayis further expanded, and the return loss of each port of the antenna array is effectively improved.

Description

technical field [0001] The present invention relates to the field of antenna technology, in particular to a broadband millimeter-wave antenna array for thin 5G and next-generation mobile terminals. Background technique [0002] In recent years, the development of fifth generation mobile networks (5th Generation mobile networks or 5th generation wireless systems, 5G for short) comes from the increasing demand for mobile data. With the development of the mobile Internet, more and more mobile terminals are connected to the mobile network, so there is an urgent need to develop 5G and next-generation mobile terminals. There are many antennas used in mobile terminals at present. For example, the antenna is a multi-layer E-shaped patch microstrip antenna array. Because it uses more materials, it is not conducive to applying it to thin mobile terminals; another example is that the antenna is a compact loop antenna. Its bandwidth is very narrow. Contents of the invention [0003]...

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a broadband millimeter-wave antenna array for thin 5G and next-generation mobile terminals, which is used to solve the problem that the structure of the multi-layer E-shaped patch microstrip antenna array in the prior art uses more materials and is compact. Technical Problems of Loop Antenna with Very Narrow Bandwidth

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