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Directional diagram reconfigurable planar array antenna based on digital coding representation and control method thereof

A planar array antenna, digital coding technology, applied in a specific array feeding system, a separately powered antenna array, an antenna, etc., can solve the problems of increasing the antenna volume, unfavorable integration, and complex assembly, and achieve a simple feeding structure, Good versatility, low profile effect

Pending Publication Date: 2019-08-20
SOUTHEAST UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Therefore, when these electromagnetic devices are used as antennas, an additional primary feed is required, which will increase the volume of the entire antenna, which is not conducive to integration, and will also bring problems of complex assembly and high cost

Method used

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  • Directional diagram reconfigurable planar array antenna based on digital coding representation and control method thereof
  • Directional diagram reconfigurable planar array antenna based on digital coding representation and control method thereof
  • Directional diagram reconfigurable planar array antenna based on digital coding representation and control method thereof

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0031]The present invention designs and manufactures a reconfigurable planar array antenna based on digital code characterization. By controlling the bias voltage at both ends of the switch linear phase shifter to be ±1.5V, the switch linear phase shifter can switch between two There are different transmission channels with a phase difference of 180°, so that the radiation encoding unit has two encoding states of "0" and "1", which are used to construct a 1-bit digital encoding antenna. The present invention introduces the digital coding technology into the design of the reconfigurable array antenna, and constructs a pattern based on the digital coding representation. Each radiation coding unit in the reconfigurable planar array antenna contains only two numbers of "0" and "1". state, and the digital state is independently adjustable. By independently contro...

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Abstract

The invention discloses a directional diagram reconfigurable planar array antenna based on digital coding representation and a control method thereof. The array antenna comprises a coaxial connector,a dielectric substrate, a metal ground located on the lower surface of the dielectric substrate and a metal pattern located on the upper surface of the dielectric substrate. The metal pattern comprises a coding unit patch, a series-parallel hybrid feed network patch and a two-way power divider patch. The series-parallel hybrid feed network patch comprises a first main feed line and a second main feed line which are connected in parallel. Wherein the first main feeder line and the second main feeder line are axially divided into four series feeder lines, each series feeder line is symmetricallydistributed on two sides of the first main feeder line or the second main feeder line, two ends of each series feeder line are respectively connected with a coding unit patch, and the first main feeder line and the second main feeder line are connected with the coaxial connector through a two-way power divider patch. The antenna has the advantages of low profile, light weight, high gain, real-time switching of radiation wave beams and shapes and the like, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the field of new artificial electromagnetic materials, and relates to a reconfigurable planar array antenna based on digital code representation and a control method thereof. Background technique [0002] Pattern reconfigurable antennas can generate multiple radiation patterns at the same frequency, and play an important role in the field of information science. In recent years, the methods to achieve pattern reconfigurable antennas mainly include mechanical tunability, special material substrates and loading active devices, such as PIN diodes, varactor diodes, micro-electromechanical systems, photosensitive switches, etc. However, most of the pattern reconfigurable antennas so far have only one or a few radiating elements, which limits the gain and beam reconfigurability of the pattern reconfigurable antenna. Traditional phased array technology can achieve high antenna gain and various radiation beams. But generally speaking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q1/38H01Q3/38H01Q21/00H01Q21/06
CPCH01Q1/50H01Q1/38H01Q21/0006H01Q21/0075H01Q3/38H01Q21/065
Inventor 蒋卫祥张信歌柏林崔铁军
Owner SOUTHEAST UNIV
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