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A vortex electromagnetic wave antenna array with helical structure

A technology of vortex electromagnetic wave and helical structure, which is applied in the direction of separately energized antenna array, antenna array, antenna, etc., to achieve high gain, reduce the number of units, and reduce the complexity

Active Publication Date: 2019-11-15
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of phased array antennas that produce vortex electromagnetic antennas that require multiple units and complex feed networks, and propose a spiral-structured antenna array to generate vortex electromagnetic waves

Method used

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  • A vortex electromagnetic wave antenna array with helical structure
  • A vortex electromagnetic wave antenna array with helical structure
  • A vortex electromagnetic wave antenna array with helical structure

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] The present invention adopts the half-wave dielectric integrated waveguide antenna with spiral structure as the antenna unit, and uses three one-to-two power dividers to feed the antenna with equal amplitude and phase with the spiral structure, so that it can reach l=2 modes orbital angular momentum of . The technical scheme of the invention has the characteristics of simple structure, low cost and easy processing.

[0022] The vortex electromagnetic wave antenna array provided by the present invention includes an antenna array with a helical structure and an antenna feeding network. The helical antenna array uses four helical dielectric integrated waveguide antennas as units. The dielectric integrated waveguide antenna with a spiral structure includes a dielectric substrate 1 , a radiation patch 2 with a spiral structure, metal via holes 3 and a metal botto...

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Abstract

The invention discloses a spiral vortex electromagnetic-wave antenna array comprising a spiral-structure-based antenna array and an antenna array feed network. The antenna array is characterized in that the spiral-structure-based antenna array uses a dielectric integrated waveguide antenna having a spiral structure as an antenna unit and a vortex electromagnetic wave is formed based on an own phase difference of the unit. The antenna array feed network employs three one-to-two power dividers to carry out equiamplitude same-phase feeding on the spiral-structure-based antenna array. The spiral vortex electromagnetic-wave antenna array is capable of forming a stable spiral vortex electromagnetic waves with a mode of 2.

Description

technical field [0001] The invention relates to a vortex electromagnetic wave antenna array with a helical structure, in particular to a vortex electromagnetic wave antenna with improved frequency utilization. Background technique [0002] With the rapid development of mobile communication technology, the rate of wireless communication has increased rapidly. In order to further increase the rate of wireless communication, how to increase spectrum utilization to a greater extent is the focus of attention. When the existing multiplexing technologies such as polarization multiplexing and orthogonal frequency division multiplexing are becoming more and more mature, using electromagnetic wave orbital angular momentum to improve spectrum utilization has become a research hotspot in the fields of electromagnetics and communications. [0003] The generation and generation of orbital angular momentum are mainly based on phased array antennas. The beam carrying the orbital angular m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/48H01Q1/50H01Q21/0006H01Q21/065
Inventor 李秀萍朱华
Owner BEIJING UNIV OF POSTS & TELECOMM