5G-oriented metamaterial structure broadband antipodal Vivaldi antenna and measurement method thereof

Abstract

The invention provides a broadband antipodal Vivaldi antenna with a metamaterial structure for 5G and a measurement method of the broadband antipodal Vivaldi antenna. According to the scheme, the antenna comprises a first metal radiation sheet, a second metal radiation sheet, a director, a dielectric substrate and a metamaterial structure array with the side length of g1, the first metal radiation sheet and the second metal radiation sheet are respectively and symmetrically printed on the front surface and the back surface of the rectangular horizontal plane in the dielectric substrate by taking the middle line of the dielectric substrate as a symmetry axis; four rectangular slot lines are etched on each of the first metal radiation sheet and the second metal radiation sheet; wherein the included angles between the rectangular slot lines and the middle line of the dielectric substrate are 60 degrees respectively; the metamaterial structures are symmetrically distributed left and right by taking the central feeder line of the dielectric substrate as a symmetry axis; and the first metal radiation sheet and the second metal radiation sheet comprise an inner gradual change line and an outer gradual change line. According to the scheme, the bandwidth of the antenna can be extended, the radiation gain in the frequency range under the high-frequency condition is improved, the bad conditions of beam deformation and the like caused by the improvement of the radiation gain under the low-frequency condition are inhibited, and the high gain and beam symmetry characteristics of the antenna are kept.

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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