A multi-beam reconfigurable vortex field metasurface lens folded antenna
A folding antenna and metasurface technology, applied in the field of communication, can solve the problems of multiplexing transmission, inflexible antenna radiation, and inability to realize multiplexing transmission of different vortex waves, and achieve the effect of overcoming multi-beam radiation and flexible antenna radiation.
Active Publication Date: 2021-07-27
XIDIAN UNIV
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art, and propose a multi-beam reconfigurable vortex field metasurface lens folded antenna, which is used to solve the problem that the vortex field metasurface lens folded antenna cannot realize different vortex in the communication system. Wave multiplexing transmission and inflexible antenna radiation
Using the principle of aperture field superposition, the problem of multiplexing and transmission of different vortex waves in the vortex field metasurface lens folded antenna in the communication system is solved, and different vortex wave radiations are presented for different polarization electromagnetic wave excitations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. This example includes but is not limited to the following embodiments.
[0024] refer to figure 1 , the structure of the present invention will be described in further detail.
[0025] The present invention includes an anisotropic metasurface lens 1 with a hollow center, a feed source 2 and a reflective surface 3 placed in the hollow center part arranged sequentially on one side of the support structure 4 . The feed source 2 adopts a pyramid horn structure, and is fixed at the center hollow of the anisotropic metasurface lens 1, and takes the center hollow as the origin of coordinates, the z axis is perpendicular to the anisotropic metasurface lens, and the x axis is parallel to the pyramid On the narrow side of the horn, the y-axis is parallel to the wide side of the pyramid horn to establish a Cartesian coordinate system.
[0026] The feed so...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| relative permittivity | aaaaa | aaaaa |
Login to View More
Abstract
The invention proposes a multi-beam reconfigurable vortex field metasurface lens folded antenna, which includes a lens, a feed source, a reflective surface and a supporting structure. The lens includes first dielectric plates stacked in sequence, and evenly arranged rectangular metal patches and cross-shaped metal patches are printed. The reflective surface includes a second dielectric plate, a metal ground, a butterfly-shaped metal patch and a PIN diode. The invention realizes a multi-beam reconfigurable vortex field metasurface lens folded antenna through the fusion design of the anisotropic metasurface lens and the polarization conversion active metasurface reflection surface. The on-off state of the PIN diode is used to realize the polarization conversion function, and electromagnetic waves in different polarization states are generated to excite the anisotropic metasurface lens, realizing multi-beam reconfigurable vortex wave radiation.
Description
technical field [0001] The invention belongs to the technical field of communication, and further relates to a multi-beam vortex field reconfigurable folded metasurface lens antenna in the technical field of antennas. The invention can be used in the communication system to transmit and multiplex different vortex wave signals. [0002] technical background [0003] Vortex electromagnetic waves are helical electromagnetic beams carrying orbital angular momentum. Due to the good orthogonality between the orbital angular momentums of different modes, a large number of multiplexing channels can be formed at the same operating frequency, which can improve spectrum utilization and communication capacity. The multi-beam antenna can generate two or more beams on one antenna aperture surface to realize beam forming and effectively increase the coverage of the antenna. However, the use of traditional array antennas to generate multi-beam antennas carrying vortex electromagnetic waves...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/02H01Q1/08
CPCH01Q1/08H01Q15/02
Inventor 杨锐顾宸光
Owner XIDIAN UNIV