Broadband dual-polarized double-layer transmission array unit

Abstract

The invention discloses a broadband dual-polarized double-layer transmission array unit, and belongs to the field of antenna design. The broadband dual-polarized double-layer transmission array unit includes fylfot metal patches, metal through holes and a dielectric substrate. The sizes of the fylfot metal patches can be changed. The broadband dual-polarized double-layer transmission array unit has the metal through holes within a certain size range and does not have the metal through holes beyond the size range. The fylfot metal patches have a structure of central symmetry and the two same layers are respectively located on upper and lower surfaces of the dielectric substrate. The metal through holes are connected with the fylfot metal patches located on the upper and lower surfaces of the dielectric substrate. The distances from all the metal through holes to the structural centers of the fylfot metal patches are the same. When the sizes of the fylfot metal patches change, the distances between the line widths thereof and the metal through holes change in proportion. The invention provides the broadband dual-polarized double-layer transmission array unit which can achieve 360-degree phase shift coverage under the condition that the transmission amplitude is greater than -1dB, supports dual polarization, has a high transmittance within a relatively broadband range, and has only two metal patches and the single-layer dielectric substrate.

Description

technical field [0001] The invention belongs to the technical field of wireless communication technology and relates to antenna technology, in particular to a broadband dual-polarization double-layer transmission array unit. Background technique [0002] High-gain antennas have important applications in the field of communications. Among them, dielectric lens and metal lens antennas are one of the important types of high-gain antennas. With the development of metamaterial technology, it is currently possible to design planar lenses using metamaterial cells. Metamaterial planar lenses can reduce the profile and processing costs of traditional lenses while maintaining a certain bandwidth. However, metamaterial planar lens units still have problems such as too many substrate layers, only supporting single polarization, low transmittance, and a phase shift range of less than 360 degrees. Contents of the invention [0003] In order to overcome the above-mentioned shortcoming...

AI Technical Summary

Problems solved by technology

However, metamaterial planar lens units still have problems such as too many substrate layers, only supporting single polarization, low transmittance, and a phase shift range of less than 360 degrees.

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