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Enhanced electrically 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 problems such as the difficulty of precise control of plasma parameters

Active Publication Date: 2021-09-07
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

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  • Enhanced electrically small antenna with stealth function
  • Enhanced electrically small antenna with stealth function
  • Enhanced electrically small antenna with stealth function

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specific Embodiment approach 1

[0052] Specific Embodiments 1. The purpose of this embodiment is to solve the communication bottleneck problem in plasma stealth technology. From the perspective of plasma dynamic adjustability and detection / communication wave timing differences, based on Fano resonance and plasma hybridization The theory provides a more general design method for plasma generators that can simultaneously realize stealth and communication enhancement.

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

[0054] The inner plasma hood 2 is located in the outer plasma hood 1, and the center of the inner plasma hood 2 and the center of the outer plasma hood 1 can coincide or be in an eccentric state;

[0055] The spherical electric small dipole antenna 3 is nested coaxially with ...

Embodiment 1

[0093] The best embodiment one, this embodiment is a further description of the first embodiment, a kind of enhanced electric small antenna with stealth function in this embodiment is a possible antenna based on Fano resonance and plasma hybridization effect A device that realizes stealth and communication enhancement at the same time, including two spherical shell-type plasma covers inside and outside and a spherical electric small dipole antenna.

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

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

Embodiment 2

[0098] The second best embodiment, this embodiment is a further description of the first embodiment, a kind of enhanced electric small antenna with stealth function in this embodiment is a possible antenna based on Fano resonance and plasma hybridization effect A device that realizes stealth and communication enhancement at the same time, including two spherical shell-type plasma covers inside and outside and a spherical electric small dipole antenna.

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

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

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Abstract

The invention discloses an enhanced electrically small antenna with a stealth function, and relates to an antenna capable of realizing stealth of detection waves and enhancement of own communication signals. The plasma stealth and enhancement device aims at solving the problem that when two plasma sources in an existing plasma stealth and enhancement device work at the same time, due to the fact that interference possibly exists between the two plasma sources, the precise regulation and control difficulty of plasma parameters is larger. An outer-layer plasma cover is a spherical-shell-shaped plasma cover formed by outer-layer plasmas, and the density and collision frequency of the outer-layer plasmas in the outer-layer plasma cover are uniformly distributed; an inner-layer plasma cover is a spherical shell-shaped plasma cover formed by inner-layer plasmas, and the density and collision frequency of the inner-layer plasmas in the inner-layer plasma cover are uniformly distributed; the inner-layer plasma cover is arranged in the outer-layer plasma cover; an electrically small dipole antenna is spherical, the electrically small dipole antenna is concentrically arranged in the inner layer plasma cover, and no gap exists between the electrically small dipole antenna and the inner layer plasma cover.

Description

technical field [0001] The invention relates to an antenna capable of concealing detection waves and enhancing communication signals of one's own side. Background technique [0002] As an emerging active stealth technology, plasma stealth has unique advantages such as wide frequency absorption, high absorption rate, no need to change the shape and structure design of the target, and dynamic continuous adjustment. However, the current plasma stealth technology often adopts 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 plasma is invisible to detection waves, it will also shield its own communication signals. [0003] On the other hand, the rapid development of nano-optics and plasmonics enables us to more flexibly and effectively control the behavior of electromagnetic waves at the sub-wavelength scale. Although the proposal and experimental...

Claims

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Application Information

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Patent Type & Authority Applications(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