1-bit digital coding metamaterial antenna unit

An antenna unit, digital coding technology, applied to antennas, antenna parts, electrical components, etc., can solve the problems of reducing the quality factor of the equivalent resonant circuit, increasing the design difficulty, reducing the reflection efficiency of the metamaterial antenna unit, etc., to maintain radiation. effect of benefit

Active Publication Date: 2021-02-26
西安雷通微系统技术有限公司
View PDF19 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used bandwidth widening methods include: electromagnetic coupling, slotting technology, etc. The basic principle is to reduce the quality factor of the equivalent resonant circuit to achieve an average amplitude-frequency response within a certain bandwidth. Using the above method, the bandwidth can be achieved to a certain extent. Broadening, but at the same time lead to a reduction in the reflection efficiency of the metamaterial antenna unit and increase the design difficulty, it is not suitable for digitally encoded metamaterial antenna units

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 1-bit digital coding metamaterial antenna unit
  • 1-bit digital coding metamaterial antenna unit
  • 1-bit digital coding metamaterial antenna unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Embodiments of the present invention will be described in detail below in conjunction with examples, but those skilled in the art will understand that the following examples are only for illustrating the present invention, and should not be regarded as limiting the scope of the present invention.

[0039] Due to the dispersion of electromagnetic waves, the reflection phase cannot be strictly switched at 0 / 180 degrees, so in order to characterize the consistency of phase modulation, the present invention introduces the concept of δ-phase bandwidth, which is defined as the phase difference between different frequencies at 180±δ when the switch is switched The bandwidth range within the range.

[0040] refer to figure 1 , Snell's theorem means: when the incident wave starts from point A to point B, when it passes through the junction of the metal layer 3 of the digitally coded metamaterial antenna unit and the dielectric layer (substrate), phase mutations will occur at dif...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a 1-bit digital coding metamaterial antenna unit, which comprises a first substrate and a second substrate, and is characterized in that the upper surface of the first substrate is provided with a metal layer, a grounding layer is arranged between the lower surface of the first substrate and the upper surface of the second substrate, and the lower surface of the second substrate is provided with a bias circuit layer; via holes are correspondingly formed in the grounding layer and the first substrate respectively, the metal layer penetrates through the via holes throughconductive components to be connected with the bias circuit layer, and the metal layer is connected with the grounding layer through a diode; the grounding layer is grounded; and the conductive part comprises a horizontally-arranged non-uniform transmission part and a vertically-arranged conductive rod. According to the invention, the non-uniform transmission part is designed to change the propagation path of electromagnetic waves, thereby achieving the regulation and control of the metamaterial phase. Through structural parameter optimization, the function of broadening the phase-frequency response bandwidth is realized on the premise of ensuring other performances of the antenna.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a 1-bit digital code metamaterial antenna unit, which can be used in communication and radar systems. Background technique [0002] Digitally coded metamaterial antenna units have the advantages of low cost, easy processing, and simple design. They have important application prospects in multifunctional antennas and reduced radar cross-sectional areas. Therefore, they are widely used in communications, radar imaging, and other fields. In addition, the digitally encoded metamaterial antenna unit is a single-channel analog array, which can be equivalent to a multi-channel digital array on the premise of greatly saving costs, and can perform functions such as spatial beamforming and waveform modulation. However, as a special metamaterial antenna unit, it has dispersion characteristics, and the propagation speed and refraction coefficient of electromagnetic waves of different freque...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q15/00
CPCH01Q1/364H01Q15/0086
Inventor 马晖王国强高思哲陈渤刘宏伟
Owner 西安雷通微系统技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap