A broadband antipodal vivaldi antenna with metamaterial structure for 5g and its measurement method

Abstract

The invention provides a 5G-oriented metamaterial structure broadband antipodal Vivaldi antenna and a measurement method thereof. The solution includes a first metal radiation sheet, a second metal radiation sheet, a director, a dielectric substrate, and a metamaterial structure array with a side length g1; the first metal radiation sheet and the second metal radiation sheet are centered on the dielectric substrate centerline The symmetry axes are respectively symmetrically printed on the front and back sides of the rectangular horizontal plane in the dielectric substrate, and four rectangular groove lines are respectively etched on the first metal radiation sheet and the second metal radiation sheet; wherein, the angles between the rectangular groove lines and the center line of the dielectric substrate are respectively is 60°; the metamaterial structure takes the central feed line of the dielectric substrate as the symmetry axis, and is symmetrically distributed left and right; the first metal radiation sheet and the second metal radiation sheet include an inner gradient line and an outer gradient line. This solution can extend the antenna bandwidth, improve the radiation gain in the frequency range under high frequency conditions, and suppress the beam deformation caused by the increase in radiation gain under low frequency conditions, and maintain the high gain and beam symmetry characteristics of the antenna.

Description

technical field [0001] The invention relates to the field of radio technology, and more specifically, to a 5G-oriented metamaterial structure broadband antipodal Vivaldi antenna and a measurement method thereof. Background technique [0002] With the rapid development of 5G / B5G technology, it is currently determined internationally that below 6GHz will be used for long-distance transmission communication. The World Radiocommunication Conference has officially confirmed the 5G millimeter wave communication frequency band, and 24.25GHz~27.5GHz can be used for 5G short-distance transmission. This has laid the foundation for the development of my country's 5G mobile communication network, communication measurement and testing technology. [0003] In recent years, the rapid development of a new generation of artificial electromagnetic media, such as photonic crystals and metamaterials, provides a strong theoretical basis for the regulation of electromagnetic waves. By changing th...

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Problems solved by technology

[0004] However, as the communication frequency continues to increase, the size of the antenna and the package will become smaller and smaller, and the rate of the communication chip will continue to increase. The traditional package structure will have excessive radiation at high frequencies.

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