Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Tunable unidirectional microwave cloaking device

A device and microwave technology, applied in the field of adjustable one-way microwave stealth devices, can solve the problem of non-adjustable working frequency, etc., and achieve the effect of simple structure and easy control

Active Publication Date: 2016-01-13
TSINGHUA UNIV
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the current optical stealth devices are generally small in size and use metamaterial structural units to achieve specific electromagnetic parameters. Once the structure is determined, the working frequency band is also determined, and the working frequency cannot be adjusted.

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
  • Tunable unidirectional microwave cloaking device
  • Tunable unidirectional microwave cloaking device
  • Tunable unidirectional microwave cloaking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0027] In the present invention, unless otherwise clearly specified...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Resonant frequencyaaaaaaaaaa
Login to View More

Abstract

The invention discloses a tunable unidirectional microwave cloaking device. The tunable unidirectional microwave cloaking device includes a first metal opening resonance ring array, a second metal opening resonance ring array, a plurality of variable capacitance diodes which correspondingly are arranged at the opening of each first metal opening resonance ring in the first metal opening resonance ring array and at the opening of each second metal opening resonance ring in the second metal opening resonance ring array, a direct-current voltage-stabilized power supply, and a controller, wherein the controller is used for controlling the output voltage of the direct-current voltage-stabilized power supply to regulate end voltage at two ends of each variable capacitance diode so as to change the capacitance values of the variable capacitance diodes, so that a frequency characteristic curve can be shifted. According to the cloaking device provided by the embodiment of the invention, control on electromagnetic wave transmission paths and phases can be realized through the resonance effects of the metal resonance rings, and obstacles in a cloaking region can be cloaked, and the frequency characteristic curve of the device can be shifted, so that the cloaking of electromagnetic wave waves in different frequency bands can be realized. The tunable unidirectional microwave cloaking device has the advantages of simple structure and easiness in control.

Description

technical field [0001] The invention relates to the technical field of electromagnetic wave control, in particular to an adjustable one-way microwave stealth device. Background technique [0002] Stealth has always been the goal that people yearn for from ancient times to the present. Scientists cover the surface of the aircraft with absorbing materials, and through the design of the shape and geometric dimensions of the aircraft, the radar waves are absorbed after being irradiated on the aircraft, reducing the reflection of the aircraft on the radar waves, and realizing the stealth fighter. However, with the development of radar technology and the widespread use of ground-to-air radar, the stealth method by absorbing incident waves has gradually revealed its shortcomings, and it is no longer possible to achieve "stealth". At present, another non-absorbing stealth method based on transformation optics is gradually emerging. The principle is to use metamaterials to construct...

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
IPC IPC(8): H01Q15/08
Inventor 赵乾彭瑞光肖宗褀孟永钢
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com