Micro-strip reflective array antenna with honeycomb-like unit arrangement

A technology of reflectarray antenna and reflectarray, which is applied in the direction of antennas, electrical components, waveguide horns, etc., can solve the problems of less than 10% or even lower, and achieve the effect of wide bandwidth, good radiation performance, and tight unit arrangement

Inactive Publication Date: 2016-01-20
NAT SPACE SCI CENT CAS
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The traditional microstrip reflectarray antenna is formed by horizontally and vertically uniform arrangement of elements; the biggest defect of this reflectarray antenna is its narrow-band characteristic, which is usually less than 10% or even lower, and its bandwidth is mainly affected by the bandwidth of the radiation unit and different paths Constraints of two factors causing different spatial phase delays

Method used

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  • Micro-strip reflective array antenna with honeycomb-like unit arrangement
  • Micro-strip reflective array antenna with honeycomb-like unit arrangement
  • Micro-strip reflective array antenna with honeycomb-like unit arrangement

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 As shown, a microstrip reflectarray antenna arranged in a honeycomb arrangement works in the Ku band; the antenna includes: a feed source and a microstrip reflectarray, the feed source is a pyramidal horn antenna, and the feeding mode is a positive feed ; The microstrip reflectarray includes several microstrip reflectarray units that are evenly arranged in a honeycomb shape; the beam of the reflectarray is directed to the vertical front direction; the shape of the reflectarray is hexagonal, so that the arrangement of the units is more compact , to make full use of the space on the surface of the reflectarray.

[0020] Such as figure 2 As shown, the microstrip reflectarray includes coaxial hexagonal ring rotation nested multi-resonance structural units of different sizes, and these multi-resonant structural units are attached t...

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Abstract

The invention provides a micro-strip reflective array antenna with a honeycomb-like unit arrangement, and the antenna works in a Ku waveband. The antenna comprises a feed source and a micro-strip reflective array; the antenna is characterized in that the feed source is a pyramid horn antenna and the feeding mode is positive feed; the micro-strip reflective array is hexagonal, including multi-resonant structural units nested by coaxial hexagonal rings of different sizes in a rotating manner; the multi-resonant structural units are attached to a dielectric substrate in a honeycomb-like arrangement; a foaming layer is arranged between the dielectric substrate and a floor; the beam direction of the whole reflective array is a direction perpendicular to the array plane. The unit arrangement mode of the micro-strip reflective array antenna is different from the conventional transversal and longitudinal arrangement mode; instead, the units of the micro-strip reflective array antenna are in the honeycomb-like arrangement; due to the arrangement mode, the space utilization of the reflective array surface is improved to enable the unit arrangement to be more tightened; and in addition, the micro-strip reflective array antenna is attractive in appearance, wider in bandwidth and good in the radiation performance.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a microstrip reflective array antenna with cells arranged in a honeycomb shape. Background technique [0002] Satellite communication, radar detection, radio astronomy research and other long-distance wireless transmission fields require high-gain antennas, and parabolic antennas and phased array antennas play an important role. The parabolic antenna has the advantages of simple structure, high gain, large power capacity, and wide frequency band, but its curved shape makes the antenna bulky and heavy, and the processing cost is high in the high frequency band. In addition, the beam scanning of the parabolic antenna needs to rely on mechanical rotation, and the beam pointing is difficult to be flexible. Relying on the flexible control of the feed network, the planar phased array antenna can independently adjust the amplitude and phase of the excitation current on each radiating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02H01Q15/14H01Q19/10
Inventor 薛飞王宏建易敏陈雪刘广
Owner NAT SPACE SCI CENT CAS
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