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An Enhanced Electric Small Antenna with Stealth Function

An electrically small antenna and enhanced technology, which is applied to antennas, electrical components, radiation unit covers, etc., can solve the problem of difficulty in precise control of plasma parameters, and achieve the effect of optimizing the overall structure and weight

Active Publication Date: 2022-07-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the problem that it is difficult to accurately control the plasma parameters due to the possible interference between two sets of plasma sources in the existing ion body stealth and booster device, and provides a Enhanced Electric Small Antenna for Stealth Function

Method used

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  • An Enhanced Electric Small Antenna with Stealth Function
  • An Enhanced Electric Small Antenna with Stealth Function
  • An Enhanced Electric Small Antenna with Stealth Function

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specific Embodiment approach 1

[0052] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 1. The purpose of this embodiment is to solve the communication bottleneck problem in the plasma stealth technology. From the perspective of the dynamic tunability of the plasma and the difference in the timing of detection / communication waves, based on Fano resonance and plasma hybridization The theory provides a more general approach to designing plasma-generating devices that can simultaneously achieve stealth and communication enhancement.

[0053] An enhanced electric small antenna with stealth function in this embodiment, which can realize stealth and communication enhancement at the same time, includes a spherical outer plasma cover, a spherical inner plasma cover and a spherical electric small dipole antenna .

[0054] The inner layer plasma cover 2 is located in the outer layer plasma cover 1, and the center of the inner layer plasma cover 2 and the center of the outer layer plasma cover 1 can be coincident or in...

Embodiment 1

[0093] Best Embodiment 1, this embodiment is a further description of Embodiment 1. An enhanced electric small antenna with stealth function in this embodiment is an antenna based on Fano resonance and plasma hybridization effect. The device that simultaneously realizes stealth and communication enhancement includes two spherical shell-shaped plasma covers and spherical electric small dipole antennas.

[0094] The outer plasma cover 1 is coaxially nested with the inner plasma cover 2, and the inner plasma cover is in close contact with the spherical electric small dipole antenna 3 without any gap.

[0095] Suppose the frequency of the detection wave is 0.9GHz, the frequency of the communication wave is 1GHz, and the radius r of the spherical electric small dipole antenna 0 =0.6cm, inner plasma thickness d in =1cm, ν in =0.1GHz, the inner and outer diameters of the outer plasma r in and r out 1.6cm and 2.1cm respectively, ν out = 0.1 GHz.

[0096] When no stealth is requi...

Embodiment 2

[0098] Best embodiment 2, this embodiment is a further description of the first embodiment, an enhanced electric small antenna with stealth function in this embodiment is a The device that simultaneously realizes stealth and communication enhancement includes two spherical shell-shaped plasma covers and spherical electric small dipole antennas.

[0099] The outer plasma cover 1 is coaxially nested with the inner plasma cover 2, and the inner plasma cover is in close contact with the spherical electric small dipole antenna 3 without any gap.

[0100] Let the frequency of the detection wave be 1GHz, the frequency of the communication wave to be 1GHz, and the radius r of the spherical electric small dipole antenna 0 =0.6cm, inner plasma thickness d in =1cm, ν in =0.1GHz, the inner and outer diameters of the outer plasma r in and r out 1.6cm and 2.1cm respectively, ν out = 0.1 GHz.

[0101] When no stealth is required, only the inner plasma is turned on, so that the density ...

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Abstract

An enhanced electric small antenna with stealth function of the present invention relates to an antenna that can realize the stealth of the detection wave and the enhancement of the communication signal of one's own side. The purpose is to overcome the simultaneous use of two plasma sources in the existing plasma stealth and enhancement device During operation, due to the possible interference with each other, it is difficult to precisely control the plasma parameters, including: the outer plasma cover is a spherical plasma cover formed by the outer plasma, and the outer plasma The density and collision frequency of the outer plasma in the body cover are evenly distributed; the inner plasma cover is a spherical plasma cover formed by the inner plasma, and the density and collision frequency of the inner plasma in the inner plasma cover The frequency is evenly distributed; the inner plasma cover is arranged inside the outer plasma cover; the electric small dipole antenna is spherical, the electric small dipole antenna is concentrically arranged inside the inner plasma cover, and the electric small dipole antenna is No gap with inner plasma hood.

Description

technical field [0001] The invention relates to an antenna which can realize stealth detection wave and enhance communication signal of one's own side. Background technique [0002] As an emerging active stealth technology, plasma stealth has the unique advantages of wide absorption frequency band, high absorption rate, no need to change the design of the target shape and structure, and dynamic continuous adjustment. However, the current plasma stealth technology often uses the method of quickly starting the plasma when the communication system is not working to achieve stealth, which has poor continuity and stability. An important reason is that while the plasma is invisible to the detection wave, it also shields its own communication signals. [0003] On the other hand, the rapid development of nano-optics and plasmonics enables us to more flexibly and efficiently tune the behavior of electromagnetic waves at the subwavelength scale. Although the proposed and experimenta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q17/00
CPCH01Q1/42H01Q17/00
Inventor 聂秋月陈培奇张仲麟李维硕艾昕闫昌时魏国强
Owner HARBIN INST OF TECH