KR910006108B1 - Preparation of flexible shelter against large band microwave - Google Patents

Abstract

An electro-resistant material of carbon or chrome is coated, vapor- deposited or electro-chemically reacted to textile fabric, synthetic resin film or yarn, thus forming electro-resistant film. Specific frequency dipole element which is selected from aluminium, gold, silver, copper or nickel as a good electro-conductive material, is coated, vapor-deposited or electro-chemically reacted to the above film, thus forming conductive filmy surface element which is composed of non-conducive resistant materials, that is carbon compd. or metal filmy resistant material, and make the energy generated from filmy surface be transformed into heat is aligned by specific frequency or attentuation.

Description

Manufacturing method of broadband microwave flexible block

1 is a cross-sectional view showing a bipolar device arrangement of the flexible barrier material of the present invention.

2 is a diagram illustrating the arrangement of the bipolar element of the present invention when the base is made of a synthetic resin base film or a nonwoven material.

When FIG. 3A, 3B, or a yarn is used as a base material, it is a longitudinal cross-sectional view and a cross-sectional view which show the arrangement state of this bipolar element.

* Explanation of symbols for main parts of the drawings

1: bipolar element 2: element derivative

3: non-inductive resistor 4: base material

The present invention relates to a method for producing a flexible block for attenuating microwaves of microwaves based on a non-conductive fibrous fabric, a synthetic resin base film or a yarn.

Today, microwaves are used in military, industrial, transport, exploration, statistics and consumer electronics as important media. In particular, the power and volume of microwave devices can be reduced or miniaturized by one-thousandths, Improvements are improving precision and reliability.

The small size, light weight and precision detection make it possible to load on small carriers such as satellites, and their applications are widely spread. On the other hand, the use of the microwave region in the communication field is used as an important medium for information transmission due to multiplexing of communication lines. In addition, the use of microwave application devices has been extended to medical kitchens as well as home kitchens, which are used in daily life, and vaporization that directly contributes to life is expected to increase.

As the microwave application device expands, the microwave energy leaked out of the purpose of the device has a great effect on the life and the device, such as the interference caused by the electromagnetic interference and the electromagnetic radiation disturbance. Regulatory issues are on the rise.

This means that the electromagnetic radiation energy in the microwave band is limited to the minimum power where it is needed, and the amount of electromagnetic radiation is restricted except for the purpose and place of use. Their specific gravity is almost the same.

This shielding and shielding material can be installed around microwave application devices to attenuate the unwanted radiant energy of electromagnetic waves to minimize the effects on human body and other applications. It is possible to use high quality electromagnetic wave and also to protect the device by shielding the diffuse reflection phenomenon and near-field reflector in the operation of the radio detector. You can achieve your purpose.

This is because a facility or structure using a metal material is a good reflector of electromagnetic waves, thereby blocking the electromagnetic radiation energy by blocking electromagnetic radiation energy by installing the shielding and shielding material thereon. If the shielding and shielding are provided, energy is attenuated by the amount of attenuation of the shielding, so that the accuracy is lowered and the reliability is lowered, making identification difficult.

However, there are various methods of manufacturing electromagnetic shielding and shielding, and various types of products have appeared, but good and bad points coexist, and are not suitable depending on the use, which is very limited in actual use.

With this in mind, the present invention has led to the creation of a method of arbitrarily setting and adjusting the amount of attenuation of one or more spectra in a microwave band into a designated broadband.

In the present invention, based on a flexible, lightweight and durable flexible woven fabric or film-like synthetic resin base film or yarn, forming and immobilizing the base material used for microwave blocking and shielding purposes to shed microwave microwaves over a wide band. At the same time, by converting and absorbing scattered electromagnetic waves into heat, the desired purpose can be achieved.

The present invention is a modified invention of the "broadband radio wave scattering flexible block method" of the prior patent publication No. 89-2923 and the Utility Model Registration Application No. 89-5656 of the present inventors to block, shielding In addition to the effect by converting the scattered power to heat, the amount of power to attenuate the scattering amount as much as the energy converted into heat increases the blocking, shielding effect as well as the effect of strongly reducing unnecessary radiation.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the arrangement state for the broadband effect of the heat conversion dipole device of the present invention, an electric resistance material such as carbon or chromium on the surface of the fabric 4, the base fabric 4, the synthetic resin base film or woven yarn A non-inductive resistor, which is a resistor in which a pair of 1/2 dipoles formed by coating deposition at a position corresponding to wavelength 1/2 of the electromagnetic wave or forming only a resistive blood by an electrochemical reaction have an equivalent resistance value corresponding to radiation resistance. (3) is connected to each other, and this non-inductive resistor 3 is maximized when the equivalent resistance of the radiation resistance is equal to the 1/2 dipole equivalent resistance, but can be stored according to the necessary cutoff and shielding value.

In addition, the heat-transformer resistance can be obtained by coating, vapor deposition, or chemical reaction as a material used as an electrical resistor in a synthetic resin base film or a textile woven fabric, and a resistor having low inductive radioactive reflectivity is preferable.

The desired frequency range and attenuation can be obtained by arranging 1/2 dipole elements of the specified frequency in pairs on this resistor surface or filament and arranging the dipole elements according to the specified effect.

FIG. 2 is an exemplary layout showing the arrangement of the bipolar device of the present invention according to the application and vacuum deposition of a conductive bipolar device using a non-conductive fibrous fabric or a synthetic resin film as a base material. An element composed of a non-inductive resistor converting into heat is disposed according to a specified frequency and attenuation amount.

3 is a substrate, using a woven yarn such as carbon fiber yarn, chemical fiber yarn, cotton yarn or polyester film yarn, coating an electrically resistant material such as carbon or chromium on its outer circumferential surface to form a conductive coating by deposition or electrochemical reaction. And arranged bipolar elements on the film to change the induced microwave power into heat.

In this case, the conductor of the bipolar element is a high-quality conductive material such as aluminum, gold, silver, copper, nickel, and the like, and the thermal conversion resistor is preferably a carbon compound or a metal film resistor, using an inductive resistance material.

Claims (2)

Coating or depositing an electrically resistive material such as carbon or chromium on the surface of a textile table, a resin base film or a woven base yarn, or forming an electrically resistive film by electrochemical pressure, and then designating the frequency as a good electrically conductive material on the film. A method of manufacturing a wideband microwave flexible blocker, comprising: arranging a bipolar element of an element, the element consisting of an inductive resistor for converting energy induced therein into heat, by a specified frequency and attenuation amount. The method of claim 1, wherein the conductor of the bipolar element is selected from any one of high-quality conductive materials, such as aluminum, gold, silver, copper, nickel to form a conductive film by coating deposition or electrochemical reaction, and the resistor for thermal conversion A method of manufacturing a broadband microwave flexible block, characterized by using an inductive resistor as a carbon compound or metal film resistor.

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