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Pattern-reconfigurable directional radiation antenna

A technology of directional radiation and pattern, which is applied to antennas, structural forms of radiating elements, electrical components, etc., can solve problems such as bulky, complex antenna structures, and limited applicable scenarios, and achieve good directional performance, easy implementation, and structural simple effect

Active Publication Date: 2016-08-10
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of antenna is often complex in structure, bulky, and the process of switching the radiation direction is cumbersome, which greatly limits the applicable scenarios
At the same time, it has both high directivity and high pattern reconfigurability performance, which intensifies the complexity of antenna structure design

Method used

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  • Pattern-reconfigurable directional radiation antenna
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  • Pattern-reconfigurable directional radiation antenna

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0020] The present invention takes a magnetic photonic crystal rectangular array composed of two types of magnetic pillars of different materials as an example to describe the structural parameter design and experimental simulation results of the present invention in detail. It should be noted that the present invention is not limited to this structure. For those skilled in the art According to the principle of the present invention, a variety of magnetic columns can be u...

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Abstract

The invention discloses a pattern-reconfigurable directional radiation antenna. The pattern-reconfigurable directional radiation antenna comprises at least two sets of magnetic photonic crystal arrays composed of magnetic columns, a radiation feed source, and metal boards covering upper and lower surfaces of the magnetic columns, wherein the magnetic columns are arranged in the air environment and are externally disposed in an axial bias magnetic field, the radiation feed source is arranged at a boundary portion of the photonic crystal arrays, and the different arrays have different structure parameters and different magnetic column materials. As the external magnetic field changes, energy band structures of magnetic photonic crystals having different structure dimensions and material components change, and change speeds of band bottom frequencies are different. According to the antenna, the radiation direction is dynamically changed through changing the external magnetic field, and the antenna further has advantages of good directional performance, simple structure, easy realization and low cost.

Description

technical field [0001] The invention relates to an antenna, in particular to an antenna with a reconfigurable directional pattern, and more specifically to a magnetic photonic crystal directional radiation antenna with a reconfigurable directional pattern. Background technique [0002] An antenna is a component used in radio equipment to transmit or receive electromagnetic waves. In satellite, radar and other fields, the directional radiation performance of the antenna is one of the important indicators. The good directional performance of the antenna greatly improves the communication efficiency. In addition, in some modern communication systems, the antenna needs to dynamically switch the radiation direction to meet various communication requirements. This kind of antenna is called a pattern reconfigurable antenna, which is generally realized by means of machinery or large active device arrays. This type of antenna is often complex in structure, bulky, and the process of...

Claims

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Application Information

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IPC IPC(8): H01Q25/00H01Q1/36
CPCH01Q1/36H01Q25/00
Inventor 肖超伍瑞新
Owner NANJING UNIV
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