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Single-layer double-frequency circularly-polarized reflective array antenna employing graphene units

A reflectarray antenna and graphene technology, applied in antennas, electrical components, waveguide horns, etc., can solve problems such as poor antenna performance, multi-layer structure increases manufacturing process complexity, volume, weight and cost, etc., to improve performance and ensure Circular polarization, the effect of overcoming mutual coupling

Inactive Publication Date: 2018-01-30
XIDIAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In summary, the existing problems in the prior art are: the multi-layer structure of the traditional dual-frequency circularly polarized reflectarray antenna increases the complexity of the manufacturing process and additional volume, weight and cost; the antenna performance is poor

Method used

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  • Single-layer double-frequency circularly-polarized reflective array antenna employing graphene units
  • Single-layer double-frequency circularly-polarized reflective array antenna employing graphene units
  • Single-layer double-frequency circularly-polarized reflective array antenna employing graphene units

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, the single-layer dual-frequency circularly polarized reflectarray antenna provided by the embodiment of the present invention using a graphene unit includes: 1. a circularly polarized horn feed; 2. a high-frequency graphene unit; 3. a low-frequency graphene unit; 4. Quartz dielectric substrate; 5. Frequency selective surface of high frequency unit; 6. Frequency selective surface of low frequency unit.

[0030] The single-layer dual-frequency circular...

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Abstract

The invention belongs to the technical field of antennae, and discloses a single-layer double-frequency circularly-polarized reflective array antenna employing graphene units. The single-layer double-frequency circularly-polarized reflective array antenna comprises a circularly-polarized feed source and a reflective array, the circularly-polarized feed source is formed by a circularly-polarized horn antenna, the upper surface of the reflective array is formed by alternatively arranging high-frequency graphene units and low-frequency graphene units, and the lower surface of the reflective arrayis provided with a frequency selection surface. The reflective array is of a single-layer structure, graphene is introduced as a radiating body of the reflective array units, and compared with a conventional metal reflective array antenna, the single-layer double-frequency circularly-polarized reflective array antenna is advantaged in that the performance of the reflective array antenna in the terahertz frequency range is effectively improved; a rotary unit method is employed to carry out phase compensation, the lower surface of the reflective array is provided with the frequency selection surface, and mutual coupling between units of the reflective array in two different frequency ranges is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a single-layer dual-frequency circularly polarized reflective array antenna using graphene units. Background technique [0002] In recent years, reflectarray antennas have been widely used in the field of communication due to their advantages such as low profile, small footprint, light weight, and easy conformity with carriers. With the development of wireless communication technology, frequency band resources are becoming more and more scarce. , the existing frequency band can no longer meet the requirements of military and civilian communications, so the use of terahertz frequency band is particularly important. With the development of microwave communication, antennas are usually required to achieve dual-frequency operation in microwave systems to overcome the defect of narrow frequency bands. Moreover, long-distance communication not only requires high gain, but also require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02H01Q15/14H01Q15/24
Inventor 李文涛孙顺莱黑永强史小卫
Owner XIDIAN UNIV
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