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Self-adaptive plane reflection/scattering array antenna

A plane reflection array and plane reflection technology, which is applied to antennas, antenna arrays, antenna grounding devices, etc., can solve the problem of less protection measures for plane reflection array antennas, and achieve the protection effect, high gain, and low sidelobe level. Effect

Active Publication Date: 2021-08-27
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, it is necessary to address the above-mentioned technical problems and provide an adaptive planar reflector / scatter array antenna that can solve the problem of few protective measures for planar reflectarray antennas

Method used

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  • Self-adaptive plane reflection/scattering array antenna
  • Self-adaptive plane reflection/scattering array antenna
  • Self-adaptive plane reflection/scattering array antenna

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0031] In one embodiment, such as figure 1 As shown, an adaptive planar reflection / scattering array antenna is provided, including:

[0032] The horn antenna 100 and the planar reflectarray 200, the horn antenna 100 is on the central axis of the planar reflectarray 200, and the distance between the horn antenna 100 and the planar reflectarray 200 is a multiple of the free space wavelength of the center frequency. For example, the free-space wavelength of 5 times the center frequency can be selected as the distance between the two.

[0033] Such as figure 2 As shown, th...

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Abstract

The invention relates to a self-adaptive plane reflection / scattering array antenna. The antenna comprises a horn antenna and a plane reflective array, the horn antenna is arranged on the central axis of the plane reflective array, and the distance between the horn antenna and the plane reflective array is the multiple of the free space wavelength of the central frequency; the plane reflective array comprises a metal floor, a dielectric substrate and a reflective array element; the reflection array element is composed of a plurality of I-shaped metal units with different sizes; a diode unit is arranged in the middle of each I-shaped metal unit; the size of the I-shaped metal unit is determined by the position in the reflection array element; the diode unit comprises a zero bias state and a conduction state; and when the antenna works normally, the diode unit is in a zero offset state, and when the antenna is subjected to strong magnetic radiation, the diode unit is in a conducting state. By adopting the scheme, the protection capability of the planar reflective array antenna can be improved.

Description

technical field [0001] The present application relates to the technical field of antennas, in particular to an adaptive planar reflection / scattering array antenna. Background technique [0002] With the continuous development of wireless communication technology, parabolic antennas are widely used in satellite communication, radar and other fields because of their high gain and low sidelobe characteristics. The parabolic antenna is composed of a metal parabola and a feed source placed on the focus of the parabola. The spherical wave emitted by the feed source is reflected by the parabola and propagates into the space in the form of a plane wave along the axis of the parabola. [0003] However, the complex curved surface of the parabolic antenna has extremely high requirements on the manufacturing process, which is difficult to process and high in cost. In addition, today's electromagnetic environment is becoming more and more complex, and many electronic devices are facing ...

Claims

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Application Information

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IPC IPC(8): H01Q15/00H01Q21/00H01Q1/48
CPCH01Q15/0006H01Q15/002H01Q21/00H01Q1/48
Inventor 张继宏翟多才徐明虎宁邓博文李杨飞查淞刘培国
Owner NAT UNIV OF DEFENSE TECH
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