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Broadband Fabry-Perot resonant cavity antenna based on artificial electromagnetic material

A technology of artificial electromagnetic materials and Perot resonant cavity, which is applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc.

Active Publication Date: 2021-07-06
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005]Technical problem: the purpose of this invention is to provide a broadband Fabry-Perot resonator antenna based on artificial electromagnetic materials to solve the traditional Fabry-Perot The bandwidth problem of Luo resonator antenna

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  • Broadband Fabry-Perot resonant cavity antenna based on artificial electromagnetic material
  • Broadband Fabry-Perot resonant cavity antenna based on artificial electromagnetic material
  • Broadband Fabry-Perot resonant cavity antenna based on artificial electromagnetic material

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Embodiment Construction

[0033] A broadband Fabry-Perot resonant cavity antenna based on artificial electromagnetic materials of the present invention is composed of a waveguide feed source, a metal ground and an upper layer partial reflection surface. Among them, the waveguide feed source is a broadband double-ridge waveguide horn, which is located in the center of the metal ground; the reflection surface of the upper layer is made of artificial electromagnetic materials.

[0034] The partial reflection surface of the upper layer has a gradient dielectric constant, the dielectric constant of the center of the partial reflection surface is high, and the dielectric constant of the edge is low. Among them: the gradient permittivity has four values; it is divided into four regions, and the permittivity of each region is different; the four regions are non-rotationally symmetrical structures. The four values ​​of the gradient permittivity are realized by four different structures; the four different struc...

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Abstract

The invention discloses a broadband Fabry-Perot resonant cavity antenna based on an artificial electromagnetic material. The antenna is composed of a waveguide feed source (1), a metal ground (2) and an upper-layer partial reflecting surface (3), the waveguide feed source (1) is a broadband double-ridge waveguide horn and is positioned below the center of the metal ground (2); and the upper-layer partial reflecting surface (3) is made of an artificial electromagnetic material and is positioned on the metal ground (2). The antenna has the advantages of being wide in working frequency band, high in gain, good in far-field directionality, low in sidelobe level, small in size, low in profile, easy to process and the like, and has very high practical value in the aspects of base station and satellite communication.

Description

technical field [0001] The invention relates to a broadband Fabry-Perot resonant cavity antenna based on artificial electromagnetic materials, belonging to the field of antennas and artificial electromagnetic materials. Background technique [0002] In recent years, with the rapid development of antenna technology, Fabry-Perot resonator antennas have won the favor of many researchers because of their low profile, high gain, simple design, and high efficiency. At the same time, broadband Fabry-Perot resonator antennas have been a recent research hotspot. Nowadays, by using optimization algorithms, applying gradient permittivity, using lens partial reflection surfaces and special-shaped metal grounds, broadband Fabry-Perot antennas can be realized. Perot resonator antenna. However, the antenna bandwidth based on these designs is limited, and some methods are more complicated, which is not conducive to the practical application of the antenna. [0003] Artificial electromagne...

Claims

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Application Information

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IPC IPC(8): H01Q15/14H01Q19/10H01Q1/50H01Q1/48
CPCH01Q15/14H01Q19/10H01Q1/50H01Q1/48
Inventor 程强袁巍崔铁军
Owner SOUTHEAST UNIV
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