Microstrip antenna array with good isolation effect

Abstract

The invention relates to a microstrip antenna array with a good isolation effect. The microstrip antenna array comprises a plurality of microstrip antenna units arranged in an array, wherein an isolation unit is arranged between every two adjacent microstrip antenna units; each isolation unit comprises four metasurfaces arranged in an equilateral rhombus shape, each metasurface comprises a dielectric layer and a metasurface structure unit, a plurality of metasurface structure units are uniformly arranged on each dielectric layer, each metasurface structure unit comprises a plurality of rhombicannular graphene films which are nested from inside to outside, the perimeters of the rhombic annular graphene films are sequentially increased from inside to outside, corresponding four edges of different rhombic annular graphene films are parallel to each other, the distances between two adjacent edges of the different rhombic annular graphene films are equal, and the upper included angle and the lower included angle of each rhombic annular graphene film are equal and are both in a range of 20 degrees and 30 degrees. Thus, mutual coupling of the microstrip antenna units in the microstrip antenna array can be obviously reduced, and the microstrip antenna array is light in material, simple in structure and convenient to popularize and use.

Description

technical field [0001] The invention relates to the field of antenna isolation, in particular to a microstrip antenna array with good isolation effect. Background technique [0002] As the sensing organ of the communication network, the base station antenna plays an increasingly important role in the network, and is the key to the construction of the base station. In recent years, broadband dual-polarized antennas and their arrays have been widely used as base station antennas. On the one hand, the wide impedance bandwidth can meet the reality of long-term coexistence of multiple mobile communication technology standards; on the other hand, good dual-polarization characteristics can effectively resist multipath fading and improve channel capacity. However, for a large-scale microstrip antenna array, it is required to arrange many microstrip antenna elements under limited space resources, so that the distance between the elements becomes very close, resulting in strong mutua...

AI Technical Summary

Problems solved by technology

However, for a large-scale microstrip antenna array, it is required to lay out many microstrip antenna elements under limited space resources, so that the distance between the elements becomes very close, resulting in strong mutual coupling between the array elements.

Images