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Dual-frequency dual-polarization multifunctional transmission and reflection type metasurface antenna and communication equipment

A dual-polarization, multi-functional technology, applied in the field of communications, can solve the problems of single, low utilization of polarization, single operating frequency, etc., and achieve the effects of high efficiency, reduced processing difficulty and cost, and high phase shift range.

Pending Publication Date: 2021-08-13
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most metasurface antennas can only achieve one of the transmission or reflection modes, and the use of polarization is not high, the operating frequency is single, and most units are not sensitive to polarization, so they can only achieve a single function.

Method used

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  • Dual-frequency dual-polarization multifunctional transmission and reflection type metasurface antenna and communication equipment
  • Dual-frequency dual-polarization multifunctional transmission and reflection type metasurface antenna and communication equipment
  • Dual-frequency dual-polarization multifunctional transmission and reflection type metasurface antenna and communication equipment

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Experimental program
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Embodiment 1

[0036] In this embodiment, the X axis is the vertical direction, and the Y axis is the horizontal direction.

[0037] like figure 1 , Figure 2(a), Figure 2(b), Figure 2(c) and image 3 As shown, a dual-frequency dual-polarization multifunctional transmission and reflection metasurface antenna includes a feed source 1 and a radiation structure that realizes reflection / transmission functions. The radiation structure is a metasurface structure, including N×M arrays. The radiating unit 3, the radiating unit includes two layers of dielectric substrates 2 that are bonded together, one layer is a double-sided metal structure, and the other layer is a single-sided metal structure; For the positions of the top layer, the middle layer and the bottom layer, the metal structure is a metal patch. Among them, when the relevant parameters of the unit in Figure 2 are optimal: P=9mm, h=2mm, w=0.4mm, w 1 = 0.8mm, L 1 = 1.5mm, L 2 =2.45mm, L 3 = 4.7 mm.

[0038] In this embodiment, the fe...

Embodiment 2

[0055] The antenna structure and dielectric materials of the present invention are the same as those in Embodiment 1, except that it is a single-beam high-gain antenna in reflection mode, and realizes two aggregation points at different positions in transmission mode, and the compensation phases required by the radiation units are different.

[0056] Among them, the principle of generating multi-focus can be explained as where n is the number of focal points, K n(i , j ) is the distance from the nth focal point to the (i,j)th unit on the hypersurface, H i,j is the distance between the horn phase center and different unit positions.

[0057] refer to Figure 10 , which is the phase distribution when the single beam position is (θ=30°, φ=90°), Figure 11 It is the phase distribution diagram when the two focus points are (0,-40,50mm) and (0,40,50mm) respectively. refer to Figure 12 and Figure 13 , are the different results obtained in this embodiment under the irradiati...

Embodiment 3

[0059] A communication device, including a dual-frequency dual-polarization multi-functional transmissive and reflective metasurface antenna as described in Embodiment 1.

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Abstract

The invention discloses a dual-frequency dual-polarization multifunctional transmission and reflection type metasurface antenna and communication equipment. The dual-frequency dual-polarization multifunctional transmission and reflection type metasurface antenna comprises a feed source and a radiation structure for realizing a reflection / transmission function, wherein the feed source is arranged above the radiation structure; the radiation structure comprises N * M radiation units arranged in an array; and each radiation unit comprises two layers of dielectric substrates which are arranged in an attached mode, the top layer, the middle layer and the bottom layer of each layer of the dielectric substrate are respectively provided with metal patches of the same structure, the metal patches are provided with X-axis branches and Y-axis branches which are orthogonal, the sizes of the Y-axis branches in the three layers of metal patches are completely consistent, the sizes of the X-axis branches of the top layer and the middle layer are completely consistent, and the X-axis branches of the bottom layer are different from the X-axis branches of the top layer and the middle layer in size. The plane transmission and reflection type metasurface antenna provided by the invention has the characteristics of planarization, flexible design, dual polarization, multiple beams and high aperture efficiency and focusing efficiency.

Description

technical field [0001] The invention relates to the communication field, in particular to a dual-frequency dual-polarization multifunctional transmission and reflection metasurface antenna and communication equipment. Background technique [0002] High-gain and multi-beam antennas have attracted the attention of researchers due to their practical value in communication applications and radar systems, and in recent years, many high-gain and multi-beam antennas based on metasurfaces have emerged. At the same time, focusing antennas also play an important role in point-to-point and point-to-multipoint applications such as near-field communication and wireless energy transmission, and various types of focusing antennas are developing rapidly. Metasurfaces have attracted widespread attention due to the introduction of phase mutations during the propagation of electromagnetic waves, replacing the phase difference introduced by feeding in traditional devices, and the advantages of ...

Claims

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Application Information

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IPC IPC(8): H01Q15/00H01Q3/30
CPCH01Q3/30H01Q15/002H01Q15/0026H01Q15/0086
Inventor 黄惠芬张健
Owner SOUTH CHINA UNIV OF TECH
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