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A Synthesis Method of Vortex Electromagnetic Wave Pattern Based on Concentric Ring Array Antenna

A technology for vortex electromagnetic wave and pattern synthesis, which is applied in loop antennas, antennas, antenna arrays, etc.

Inactive Publication Date: 2020-07-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional array antenna pattern synthesis methods such as Taylor synthesis method and Baylis synthesis method are all aimed at plane electromagnetic waves, and do not involve vortex electromagnetic waves.

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  • A Synthesis Method of Vortex Electromagnetic Wave Pattern Based on Concentric Ring Array Antenna
  • A Synthesis Method of Vortex Electromagnetic Wave Pattern Based on Concentric Ring Array Antenna
  • A Synthesis Method of Vortex Electromagnetic Wave Pattern Based on Concentric Ring Array Antenna

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Embodiment Construction

[0049] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0050] like figure 1 As shown, the vortex electromagnetic wave pattern synthesis method based on the concentric ring array antenna includes the following steps:

[0051] S1. Select the basic function according to the topological charge that needs to be generated, and establish the preliminary direction graph function;

[0052] S2. Perform sidelobe level optimization on the preliminary pattern function to obtain an optimize...

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Abstract

The invention discloses a method for synthesizing vortex electromagnetic wave pattern based on a concentric circular ring array antenna, which comprises the following steps: S1, selecting basic functions according to the topological charge generated as required, and establishing a preliminary pattern function; S2, selecting the preliminary direction The graph function performs sidelobe level optimization to obtain the optimized function; S3, obtain the circular aperture excitation current of the optimized function, and bring it into the radiation pattern to obtain the direction diagram of the continuous surface source distribution; S4, convert the continuous surface The excitation current in the pattern of the source distribution is discretized to obtain the excitation current of the discrete concentric ring antenna, and then the vortex electromagnetic wave pattern based on the concentric ring array antenna is obtained, and the pattern synthesis is completed. The invention solves the comprehensive problem of the pattern of the vortex electromagnetic wave emission and reception in the vortex electromagnetic wave imaging, and provides theoretical support and design guidance for the experimental research of the vortex electromagnetic wave imaging.

Description

technical field [0001] The invention relates to the field of vortex electromagnetic wave pattern synthesis, in particular to a vortex electromagnetic wave pattern synthesis method based on a concentric circular ring array antenna. Background technique [0002] The vortex electromagnetic wave has become a research hotspot in the field of wireless communication in the past two years because it provides a new degree of freedom in the topological charge domain. a new working principle. Similar to the relationship between frequency and time, high-resolution imaging in azimuth can be achieved by using the dual relationship between topological charge variables and azimuth variables. This working mechanism is completely different from that of SAR imaging. It does not require a moving platform and can complete high-resolution imaging in azimuth while keeping the transmitting and receiving antennas stationary. In order to realize the imaging and communication of vortex electromagnet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/00H01Q21/00H01Q7/00
CPCH01Q21/00H01Q7/00G06F30/00
Inventor 杨拥军
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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