Hexagonal metasurface broadband high-gain antenna

Abstract

The invention belongs to the technical field of metasurface antennas, and particularly relates to a hexagonal metasurface broadband high-gain antenna. The antenna comprises a first metasurface unit structure layer (1), a second metasurface unit structure layer (2), an air dielectric layer (3) and a feed grounding layer (4). The first metasurface unit structure layer (1) and the second metasurface unit structure layer (2) are stacked together, the second metasurface unit structure layer (2) and the feed grounding layer (4) are arranged up and down in a non-contact manner, and an air cavity formed between the second metasurface unit structure layer (2) and the feed grounding layer (4) is an air dielectric layer (3); and the first metasurface unit structure layer (1) and the second metasurface unit structure layer (2) are each printed with a plurality of orthohexagonal metal radiation patch arrays in a hexagonal surrounding mode, and each orthohexagonal metal radiation patch array in the hexagonal surrounding mode comprises a plurality of orthohexagonal metal radiation patches in the hexagonal surrounding mode. The antenna is a high-gain antenna which is wider in broadband, high in gain and low in profile.

Description

technical field [0001] The invention belongs to the technical field of metasurface antennas, in particular to a hexagonal metasurface broadband high-gain antenna. Background technique [0002] With the rapid development of modern wireless communication technology, the demand for high-speed data transmission and large channel capacity in mobile communication systems, radars, and satellite communications is increasing, making the demand for broadband high-gain antennas increasingly high. Waveguide antennas, lens antennas, microstrip antennas, etc. are all high-gain antennas; however, high-gain waveguide antennas and lens antennas are bulky and not suitable for miniaturization and integration, while microstrip antennas are easy to integrate and manufacture due to their small size The cost is low, and it has been widely used in various wireless communication systems. However, the gain and bandwidth of the traditional microstrip antenna are limited, and the dielectric loss of th...

AI Technical Summary

Problems solved by technology

High-speed data transmission cannot be achieved, and communication systems with large channel capacity have a narrow bandwidth range

Although the third metasurface antenna improves the impedance bandwidth, the gain flatness of this antenna is not good, and there are large gain changes in the entire frequency range, and the resonance effect is poor, and the standing wave in some frequency bands is large , the stability of the antenna is not guaranteed

Images