Transmission type programmable metasurface for millimeter wave beam scanning

A technology of beam scanning and metasurface, applied in the direction of waveguide horn, antenna, electrical components, etc., can solve the problems of phased array antenna limitation, complex structure of phase shifter, difficult design, etc., and achieve low difficulty, small size, small The effect of the design

Active Publication Date: 2021-12-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0003] Among them, the beam scanning technology is one of the key technologies for target detection, and the phased array antenna is the mainstream technology to realize the beam scanning, which can control the phase through a large number of phase shifters to realize the fast scanning of the beam, but the phase shifting of different phase shifts The structure of the antenna is complex, the design is difficult, and the phased array antenna has a limitation of ±60° scanning range

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  • Transmission type programmable metasurface for millimeter wave beam scanning
  • Transmission type programmable metasurface for millimeter wave beam scanning
  • Transmission type programmable metasurface for millimeter wave beam scanning

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Embodiment Construction

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an e...

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Abstract

The invention discloses a transmission type programmable metasurface for millimeter wave beam scanning. The transmission-type programmable metasurface comprises a plurality of basic units, each basic unit comprises a first metal layer, a first dielectric layer, a second metal layer, a second dielectric layer and a third metal layer which are sequentially arranged from top to bottom; each of the first metal layer, the second metal layer and the third metal layer comprises a square copper ring and a square diode patch located in the internal space of the square copper ring; the square diode patch is formed by connecting a plurality of diodes; and each basic unit is connected with the programmable device. The metasurface is simple in structure and can dynamically achieve + / -80-degree large-angle electromagnetic wave beam scanning in real time.

Description

technical field [0001] The invention relates to the technical field of solid-state plasma and artificial electromagnetic metasurface, in particular to a transmission programmable metasurface for millimeter wave beam scanning. Background technique [0002] The artificial electromagnetic metasurface is referred to as the metasurface. Its concept is derived from the metamaterial. It is composed of subwavelength units arranged periodically or aperiodically. It is a two-dimensional artificial electromagnetic structure that can be used for electromagnetic wave regulation. It is mainly divided into reflective with transmissive. After the emergence of high-performance FPGA (Field Programmable Gate Array), real-time reconfigurable technology has become a major research hotspot. The essence of this technology is to use the characteristics of reconfigurable logic of programmable devices, keep the original physical model The requirements dynamically change the functionality of the syst...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00H01Q3/36H01Q13/02
CPCH01Q15/0086H01Q3/36H01Q13/02
Inventor 王婷尹翔宇徐立新张润泽马旭辉
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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