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An artificial structural material for electronically controlling radiation frequency and its manufacturing method

A technology of artificial structure and radiation frequency, applied in the direction of electrical components, antennas, etc., can solve the problem of narrow application bandwidth and achieve the effect of convenient production and simple metal structure

Active Publication Date: 2018-07-06
CHENGDU NANJIAO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to: aim at the problem of narrow application bandwidth of existing negative refractive index artificial materials, and propose an artificial structural material and its manufacturing method for electronically controlling the radiation frequency. Working within the range, by changing the working voltage of the varactor diode, the effective control of the working frequency of the artificial structure material can be realized, and then the antenna radiation frequency can be expanded

Method used

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  • An artificial structural material for electronically controlling radiation frequency and its manufacturing method
  • An artificial structural material for electronically controlling radiation frequency and its manufacturing method
  • An artificial structural material for electronically controlling radiation frequency and its manufacturing method

Examples

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Effect test

Embodiment 1

[0022] A manufacturing method of an artificial structural material for electronically controlling the radiation frequency is as follows:

[0023] (1) The central operating frequency f is selected as 19GHz, and the corresponding wavelength λ is 16mm. The material of the metal structure is copper, the base material is FR-4 (r=4.9, r=1), and the artificial structure material unit is determined as Type of cubic unit, the length and width of the metal structure are equal, take a = 6mm. The width of the metal line is w=0.8mm, the length of the middle opening is g=1mm, the thickness of the metal is t=0.014mm, the thickness of the base material is d=0.20mm; the distance between the artificial structural material units is 8mm, The middle opening of the type metal structure is loaded with a capacitor diode.

[0024] (2) The design material stacks 20 layers of materials in the propagation direction. When the voltage applied to the varactor diode is from 2-8v, the frequency modulation...

Embodiment 2

[0027] A manufacturing method of an artificial structural material for electronically controlling the radiation frequency is as follows:

[0028] (1) The central operating frequency f is selected as 35GHz, and the corresponding wavelength λ is 8mm. The material of the metal structure is gold, the base material is FR-4 (r=4.9, r=1), and the artificial structure material unit is determined as Type of cubic unit, the length and width of the metal structure are equal, take a = 3mm. The width of the metal line is w=0.4mm, the length of the middle opening is g=0.5mm, the thickness of the metal is t=0.014mm, the thickness of the base material is d=0.1mm; the distance between the artificial structural material units is 4mm.

[0029] (2) Load a capacitive diode at the opening of the metal structure of each artificial structural material unit, and then use the electromagnetic simulation software CST to calculate the transmission spectrum characteristics and resonance frequency charact...

Embodiment 3

[0032] A manufacturing method of an artificial structural material for electronically controlling the radiation frequency is as follows:

[0033] (1) Select the central operating frequency f as 94GHz, and the wavelength λ as 32mm. The material of the metal structure is gold, the base material is FR-4 (r=4.9, r=1), and the artificial structure material unit is determined as A cubic unit of type, the side length is mm, the length and width of the metal structure are equal, take a=13mm. The width of the metal line is w=1.6mm, the length of the middle opening is g=2mm, the thickness of the metal is t=0.014mm, the thickness of the base material is d=0.4mm; the distance between the artificial structural material units is 16mm.

[0034] (2) Load a capacitive diode at the opening of the metal structure of each artificial structural material unit, and then use the electromagnetic simulation software CST to calculate the transmission spectrum characteristics and resonance frequency ch...

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Abstract

The invention discloses an artificial structural material for electric control and regulation of radiation frequency and a manufacturing method of the artificial structural material. The manufacturing method comprises the following steps: (1) selecting central working frequency f, and further determining spacing intervals between units of the artificial structural material, as well as metal line width, metal type and electromagnetic nature of a substrate material of a metal structure constituting the units of the artificial structural material; (2) selecting a structure which is shaped like double letters E arranged opposite longitudinally as the metal structure, loading a capacitive diode, then computing by using electromagnetic simulation software CST (computer simulation technology), recording corresponding resonant frequency and drawing a resonant frequency-voltage curve; (3) periodically arranging the units of the artificial structural material in the H-plane direction of an antenna, and dividing the units of the artificial structural material into N regions arranged at equal spacing intervals, wherein N is not less than 10, each region comprises the same number of units, and the capacitance applied on the units in each region is equivalent. The artificial structural material disclosed by the invention adopts the metal structure which is shaped like the double letters E arranged opposite longitudinally to apply variable capacitance, so that the influence on electromagnetic property of the material when a conducting wire is externally applied is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to an artificial structural material for electronically controlling radiation frequency adjustment and a manufacturing method thereof. Background technique [0002] Due to the electromagnetic properties of artificial structural materials, people use artificial structural materials in antennas. However, the traditional artificial structural materials have a very narrow bandwidth, which severely limits the use of artificial structural materials in antennas. In order to solve this problem, people began to focus on research Actively control the electromagnetic properties of artificial structural materials in real time through external means. In 2006, a research team at Zhejiang University used anti-parallel S-ring artificial materials to expand it to steerable antennas, but this antenna is based on the negative refraction characteristics of S-rings, so anti-parallel S-rings...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
Inventor 李平
Owner CHENGDU NANJIAO TECH
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