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Feedback type microwave antenna

A microwave antenna and feed-in technology, applied in antennas, electrical components, etc., can solve the problems of large size of spherical lens 1000, reduction of electromagnetic energy, loss of electromagnetic energy, etc., to improve the short-range radiation range, avoid the reduction of electromagnetic energy, The effect of improving aggregation performance

Active Publication Date: 2013-08-07
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the process of implementing the present invention, the inventor found that the lens antenna has at least the following technical problems: the spherical lens 1000 is bulky and heavy, which is not conducive to the use of miniaturization; the spherical lens 1000 has a great dependence on the shape and needs to be more precise Realize the directional propagation of the antenna; the electromagnetic wave reflection interference and loss are relatively serious, and the electromagnetic energy is reduced
Due to the reflection of part of the electromagnetic wave, the electromagnetic energy along the propagation direction will be correspondingly lost, which seriously affects the distance of electromagnetic signal propagation and the quality of the transmitted signal.

Method used

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Embodiment Construction

[0035] Light, as a kind of electromagnetic wave, when it passes through glass, because the wavelength of light is much larger than the size of atoms, we can use the overall parameters of the glass, such as the refractive index, rather than the detailed parameters of the atoms that make up the glass to describe The response of glass to light. Correspondingly, when studying the response of materials to other electromagnetic waves, the response of any structure in the material whose scale is much smaller than the wavelength of the electromagnetic wave to electromagnetic waves can also be described by the overall parameters of the material, such as the dielectric constant ε and magnetic permeability μ. By designing the structure of each point of the material, the dielectric constant and magnetic permeability of each point of the material are the same or different, so that the overall dielectric constant and magnetic permeability of the material are arranged in a certain order, and ...

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Abstract

The invention discloses a feedback type microwave antenna, which comprises a radiation source, a first metamaterial panel used for diverging electromagnetic waves from the radiation source, and a second metamaterial panel with an electromagnetic wave converging function for converting the electromagnetic waves diverged from the first metamaterial panel into plane waves. The feedback type microwave antenna is fabricated based on a metamaterial principle to release from the limitation of conventional convex lens shapes, concave lens shapes and paraboloid shapes, can be planar or in any other shapes, thinner, smaller and more convenient to process and fabricate, and has the beneficial effects of low cost and good gain.

Description

technical field [0001] The present invention relates to the field of antennas, in particular to a feed-back microwave antenna. Background technique [0002] In conventional optical devices, a lens can make the spherical wave radiated by a point light source located at the focal point of the lens become a plane wave after being refracted by the lens. The lens antenna is composed of a lens and a radiator placed on the focal point of the lens. Using the characteristics of lens convergence, the electromagnetic wave radiated by the radiator is converged by the lens and then emitted. This antenna has strong directivity. [0003] At present, the convergence of the lens is realized by the refraction of the spherical shape of the lens, such as figure 1 As shown, the spherical wave emitted by the radiator 1000 is converged by the spherical lens 2000 and then emitted as a plane wave. In the process of implementing the present invention, the inventor found that the lens antenna has at...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00H01Q15/02H01Q19/06
Inventor 刘若鹏季春霖岳玉涛尹小明
Owner KUANG CHI INST OF ADVANCED TECH
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