Beveled edge step change triangular metal radiation patch multi-frequency microstrip MIMO antenna

Abstract

A beveled edge step change triangular metal radiation patch multi-frequency microstrip MIMO antenna comprises two identical antenna units arranged on a rectangular dielectric substrate, and a feed structure and a radiation structure of a first antenna unit and a second antenna unit etched on the upper surface of the rectangular dielectric substrate. The lower surface of the rectangular dielectricsubstrate is covered with metal to form a common grounding plate of the first antenna unit and the second antenna unit, the feed structure is a rectangular microstrip feed transmission line extendinginwards from the edge of the rectangular dielectric substrate, and the radiation structure is a right-angled triangle radiation patch. One right-angled side of the right-angled triangle radiation patch and the rectangular microstrip feed transmission line are located on a same straight line, the hypotenuse of the right-angled triangle radiation patch is in step change and is arranged towards the outer side, and the two antenna units are rotationally symmetrical. According to the invention, the resonance frequency point of the antenna is expanded, and the isolation degree between the antenna units and the remote radiation gain are improved.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a triangular metal radiation patch multi-frequency microstrip MIMO antenna with a hypotenuse step change. Background technique [0002] Although the fifth-generation mobile communication technology and the fourth-generation mobile communication are only optimized in three aspects: data transmission rate, network capacity and delay. but. 5G mobile communication supports a user experience rate of 0.1-1Gpbs, a connection density of one million per square kilometer, a millisecond-level end delay, a traffic density of 10Tbps per square kilometer, a mobile performance of more than 500km / h and a peak value of 20Gbps rate. Compared with the 4G mobile communication system, the above indicators are not minor quantitative changes, but fundamental qualitative changes. According to ITU-R (International Telecommunication Union Radiocommunication Sector), three application scenarios of ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-frequency triangular metal radiation patch with step-change hypotenuse in view of the above-mentioned problems in the prior art that the planar antenna has a single operating frequency point, the structure of the multi-frequency antenna is too complicated, and the radiation gain of the multi-twig antenna is low. Microstrip MIMO antenna, extending the resonant frequency point of the antenna, improving the isolation between antenna elements and the remote radiation gain

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