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Conformal antenna on holographic artificial impedance surface

An artificial impedance and conformal antenna technology, applied in the field of antennas, can solve problems such as limitations, and achieve the effect of improving antenna performance, low profile, and good sidelobe level

Inactive Publication Date: 2014-10-22
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main problem is that the existing technology patents only innovate the form of radiation waves, so they only stay on the holographic artificial impedance surface on the planar structure, and it ignores the key issue of the holographic antenna is to use the surface wave to successfully realize the surface waveguide. OK, is the premise of realizing leaky wave radiation, therefore, the existing technology is limited to the planar structure of the holographic impedance surface

Method used

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Embodiment 1

[0034] A holographic artificial impedance surface conformal antenna. The artificial impedance surface structure includes a metal patch, a dielectric layer and a metal layer. The metal layer can be a metal carrier. Metal patches of different sizes correspond to different surface impedances, and the surface impedance distribution is based on holographic The interference pattern distribution of the principle, wherein, the reference wave corresponding to the interference pattern distribution of the holographic principle is a surface wave, and the target wave is a radiation plane wave.

[0035] The back side of the dielectric layer is a metal layer, the front side is uniformly distributed with units of the same size, and metal patches of different sizes are respectively arranged on the units of the same size.

[0036] The target wave is set as a pencil-shaped radiation plane wave, written in the following form: .

[0037] When the reference wave is a cylindrical surface wave,...

Embodiment 2

[0046] This embodiment is described by taking a holographic artificial impedance surface antenna conformal to a conical surface as an example with reference to the accompanying drawings.

[0047] The holographic artificial impedance surface conformal antenna is a new type of antenna that conforms the artificial impedance surface based on the holographic principle to the complex carrier surface. The invention designs a novel leaky-wave antenna by utilizing the holographic principle and impedance modulation theory, and further performs conformal processing on the holographic artificial impedance surface so that it can conform to complex objects. The invention proposes a new reference scheme for the antenna conformal technology, and greatly improves the performance of the antenna.

[0048] Take the conical conformal holographic artificial impedance surface antenna as an example. The antenna uses a monopole antenna to feed power on the conical surface, and the surface impedance d...

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Abstract

The invention discloses a conformal antenna on the holographic artificial impedance surface. The artificial impedance surface structure comprises metal patches, a dielectric layer and a metal layer; metal patches of different sizes are corresponding to different surface impedances respectively; the surface impedances are distributed based on distribution of an interference pattern of a holographic principle; the distribution of the interference pattern of the holographic principle is corresponding to a reference wave serving as a surface wave and a target wave serving as a radiation plane wave. According to the conformal antenna on the holographic artificial impedance surface, the conformal treatment is performed on the holographic artificial impedance surface and accordingly the holographic artificial impedance surface and a complex object can be conformal, a plane holographic antenna can be conformal onto the curved surface of any complex object, and accordingly any radiation can be formed.

Description

technical field [0001] The invention relates to a holographic artificial impedance surface conformal antenna, belonging to the technical field of antennas. Background technique [0002] The basis of holographic optical technology is the phase interference of light and the diffraction of light, and the necessary condition for optical interference to occur is that two columns of light waves have the same frequency and a constant phase difference. The first step is to use the interference principle to record the light wave information of the object, and the second step is to shoot the reference beam onto the holographic film, and reproduce the object light through the diffraction of light. [0003] The mechanism of the holographic antenna is similar to optical technology. The interference pattern of the holographic antenna is formed by the interference of the radiation field of the reference antenna and the radiation field of the target antenna on the interference surface. In ...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/50
Inventor 欧阳骏张袁周龙建龙宇梁志鹏田泽阳
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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