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Ultra-wideband low-RCS plasma antenna based on reconstruction structure

A plasma antenna, ultra-broadband technology, applied in antennas, antenna arrays, antenna grounding devices, etc., can solve problems such as easy existence of reflected waves, and achieve the effect of reducing echo signal power, reducing radar scattering cross-section, and light weight

Pending Publication Date: 2019-09-24
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of reflected waves in the stealth investigation and stealth communication of the prior art, and propose an ultra-wideband low RCS plasma antenna based on the reconstruction structure, by controlling the state of the reconstruction structure in the middle and the inert gas at the top state, the working frequency band of the antenna can be adjusted, providing a new method for ultra-wideband ultrashort wave antenna design

Method used

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  • Ultra-wideband low-RCS plasma antenna based on reconstruction structure
  • Ultra-wideband low-RCS plasma antenna based on reconstruction structure
  • Ultra-wideband low-RCS plasma antenna based on reconstruction structure

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Embodiment Construction

[0021] The present invention proposes a new reconfigurable ultra-wideband plasma antenna,

[0022] A new type of ultra-wideband low-RCS plasma antenna based on a reconstructed structure, including a high-frequency antenna, an on-off switch, and a plasma antenna with a low-RCS characteristic and an adjustable operating frequency set above the high-frequency antenna. The disconnect switch 3 is connected between the high-frequency antenna and the plasma antenna;

[0023] The plasma antenna includes a chassis and a plasma grid 1. The plasma grid is installed above the chassis 2. The plasma grid is electrically connected to the high-frequency antenna through an on-off switch;

[0024] The high-frequency antenna includes a metal floor. Above the metal floor, a broadband inverted frustum 4 with a tapered narrowing from top to bottom is arranged. The upper and lower mouth surfaces of the broadband inverted frustum are closed. The bottom end of the broadband inverted frustum is fed by radio f...

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Abstract

The invention discloses an ultra-wideband low-RCS plasma antenna based on a reconstruction structure, and the antenna comprises a high-frequency band antenna, an on-off switch, and a plasma antenna which is located above the high-frequency band antenna, has a working frequency band of an adjustable and controllable antenna, and has a low-RCS characteristic. The on-off switch is connected between the high-frequency band antenna and the plasma antenna. The plasma antenna comprises a chassis and a plasma grid array, wherein the plasma grid array is assembled above the chassis, and the plasma grid array is electrically connected with the high-frequency band antenna through the on-off switch. The antenna has the advantages of good invisibility, high dynamic adjustability and low mutual coupling effect.

Description

Technical field [0001] The invention belongs to the field of communication devices, and in particular relates to an ultra-wideband low RCS plasma antenna based on a reconstructed structure. Background technique [0002] Ultrashort wave communication relies on ground wave propagation and is not restricted by network hubs and relay conditions. It has strong anti-destructive ability, and its frequency band is wide, simple structure, little affected by seasons and climate, high stability, and communication quality Better than shortwave communication. The reconfigurable characteristics of plasma provide a novel design method to realize broadband and beam reconstruction of antennas, and it has better performance than traditional metal antennas in terms of stealth and decoupling of shortwave / ultrashortwave antennas. The invention designs a reconfigurable broadband stealth plasma antenna, and the novel antenna has a greater application potential in stealth detection. Summary of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q1/36H01Q1/48H01Q21/00
CPCH01Q1/50H01Q1/36H01Q1/48H01Q21/00
Inventor 贾丹耿京朝何其洪
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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