WO2006112001A1 - 全天候型電波反射吸収体及びその組込構造体 - Google Patents
全天候型電波反射吸収体及びその組込構造体 Download PDFInfo
- Publication number
- WO2006112001A1 WO2006112001A1 PCT/JP2005/007070 JP2005007070W WO2006112001A1 WO 2006112001 A1 WO2006112001 A1 WO 2006112001A1 JP 2005007070 W JP2005007070 W JP 2005007070W WO 2006112001 A1 WO2006112001 A1 WO 2006112001A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- absorber
- radio wave
- weather
- foam
- particles
- Prior art date
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 69
- 239000002245 particle Substances 0.000 claims abstract description 25
- 239000006260 foam Substances 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 230000002238 attenuated effect Effects 0.000 claims abstract description 3
- 239000004744 fabric Substances 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract 2
- 231100001261 hazardous Toxicity 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 210000001061 forehead Anatomy 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/416—Reflective
Definitions
- the present invention relates to an all-weather radio wave reflection absorber and its built-in structure that can reduce or prevent various radio waves scattered in the air and can be easily accumulated in the human body while discharging static electricity.
- a radio wave reflecting metal foil is disposed on the radio wave absorption layer, and a multi-pole magnetized radio wave absorber (see, for example, Patent Document 1), or absorbs radio waves and Z or electromagnetic waves.
- a radio wave absorber composed of a radio wave absorber layer and a heat transfer conversion layer, wherein the radio wave absorber comprises two or more radio wave absorber layers, and an easy-adhesion layer is provided between each layer (for example, a patent Etc.).
- Patent Document 1 Japanese Patent Laid-Open No. 7-283577
- Patent Document 2 Japanese Patent Laid-Open No. 2002-57486
- Patent Document 1 a flexible magnet is used, and in Patent Document 2, a laminated structure is provided, and a heat transfer conversion layer is provided to provide high heat dissipation and thermal conductivity.
- V equipped with a sheet-like body, and radio wave absorptivity to the extent that it does not harm the human body or other electronic devices over most areas of ultra-wideband electromagnetic waves from 400 MHz to 100 GHz, for example, -15 dB It was impossible to attenuate more.
- the present invention has been made paying attention to the above points, and has radio waves flying in the air.
- An all-weather type electromagnetic wave reflection absorber and its built-in structure that absorbs and reflects effectively has a desired shape such as a block shape or sheet shape, and can be incorporated into various equipment, equipment, furniture, etc. The purpose is to provide a body.
- an object of the present invention is to provide an all-weather radio wave reflection absorber that efficiently eliminates static electricity generated in clothes and the like and does not accumulate in the human body and a built-in structure thereof. To do.
- the present invention can solve the above-described problems by including the following configuration.
- a surface wave absorber in which conductive powder particles such as carbon particles and ferrite particles are contained in a continuous foamed portion of a foam having a desired shape such as an uneven shape or a plate shape, and one or more layers
- An intermediate flat plate wave absorber containing conductive particles such as carbon particles and ferrite particles in the continuous foaming part of the foam and a bottom layer radio wave reflector are laminated to absorb radio waves from all directions. It is attenuated and reflected by the bottom radio wave reflector, so that it can be absorbed by the absorber, and it is formed so that static electricity accumulated in the clothes worn can be discharged, and the whole is covered with a flexible fabric.
- An all-weather radio wave reflection absorber characterized by comprising
- All weather-type radio wave reflection characterized by comprising the above-mentioned all-weather radio wave reflection / absorption body integrally incorporated in a tangible body. Absorber built-in structure.
- the tangible object includes a toy such as a doll, a building, furniture, a vehicle, and clothing, and is fixed and movable.
- the surface radio wave absorber has an uneven surface, so that it can absorb radio waves flying from all directions, so-called harmful electricity from all directions. Waves can be absorbed effectively by taking the action of carbon particles without difficulty, and more than one layer of radio wave absorber on the intermediate plate is laminated below this surface radio wave absorber, so that strong waves are also stepped.
- the bottom radio wave reflector provided at the bottom layer reflects the remaining radio wave that is going to be transmitted, and the weak radio wave that goes from the bottom to the top again is sent to the human body by the intermediate plate wave absorber and the surface wave absorber Can reduce the amount of radio attenuation to a level that is hardly harmful, for example, 15 dB or more.
- the all-weather radio wave reflection absorber according to the present invention having this attenuation effect according to the present invention is not limited to any tangible body, for example, any toy such as a doll for children to play.
- Electronic devices such as personal computers, various components such as buildings, desks and chairs, furniture such as sofas and partitions, car seats, ceilings, doors, floor parts, train and train seats, aircraft It can be used as fixed or movable by incorporating it into the exterior or interior such as cockpits, passenger seats, ceilings, floors, baggage storage boxes, indoor floors, walls, and ceilings.
- FIG. 1] (a) and (b) are longitudinal explanatory views of two embodiments showing the basic configuration of the present invention.
- FIG. 2 (a), (b), (c) are slope views showing three examples of the size and shape of Fig. 1.
- FIG. 3 (a) is a cross-sectional view when the present invention is applied to the backrest of an automobile seat, and (b) is an integrated molding of the same automobile seat and backrest according to the required shape design.
- the cross-sectional explanatory drawing when the shape such as curved surface and unevenness is designed and molded freely (c) is a slope view when the present invention is applied to a furniture chair
- FIG. 4 (a) and (b) are cross-sectional explanatory views of two examples when the present invention is applied to a stuffed doll.
- FIG. 5 (a), (b) and (c) are formed in a block shape. Partial cutaway slope view showing another embodiment of the present invention that can be used for various applications.
- FIG. 8 (a), (b) and (c) are cross-sectional views showing three types of integrally molded products.
- FIGs. 1 (a), (b) and Figs. 2 (a), (b), (c) show an all-weather wave absorber of two embodiments of the present invention.
- [0019] 1 denotes a plate-shaped rectangular surface wave absorber, which is, for example, a urethane foam made of synthetic resin such as polyurethane and is provided with an elastic porous continuous foamed portion (porous) 2.
- the foamed portion 2 is formed by a foam having irregularities such as protrusions and corrugations, and the foamed portion 2 is impregnated and fixed with conductive fine carbon particles 7.
- Reference numeral 3 denotes an intermediate flat plate wave absorber having a foam structure in which one or more layers are attached to the lower part of the surface wave absorber 1, and has the same internal configuration as the surface wave absorber 1. That is, it has a configuration of a continuous foamed part (porous) 2 of a synthetic resin foam such as polyurethane, and the continuous foamed part 2 is impregnated and fixed with conductive fine carbon particles 7.
- the radio wave absorption effect of the surface radio wave absorber 1 and the intermediate plate radio wave absorber 3 is as follows.
- [0021] 4 is a bottom surface radio wave reflector disposed at the bottom, for example, 50 ⁇ : LOO / zm thickness,
- a lightweight aluminum foil of 6 kgZm 2 or electromagnetic shielding fiber woven fabric can be used.
- non-halogen-based materials that are environmentally friendly are preferred, and the use of flame retardancy can improve electromagnetic shielding and flame resistance.
- FIG. 5 is a cover that covers the outer surface, and can form the packaged wave absorber X shown in Fig. 1, and Fig. 2 (a) is a cuboid of 30cm X 30cm X 8.5cm, for example. 1S equipped with Form A Can be formed from several centimeters to several meters depending on usage conditions. In addition, the thickness is also 6cm force and 8.5cm thickness to achieve the absorption function of display. For example, depending on the required conditions, the thickness can be from 2cm to 6cm.
- FIG. 2 (b) has, for example, a rectangular shape B of 30 cm ⁇ 60 cm ⁇ 8.5 cm, but it can be formed to a desired size according to the use conditions, as in (a).
- the cover 5 can be easily manufactured using a flexible sheet material such as leather and synthetic resin as well as fibers, and is not shown, but the overall shape is circular, spherical or elliptical. Of course, it can be formed in any shape such as a shape.
- Figure 2 (c) shows the case where the whole is integrally formed into an indefinite shape C, and the outer shape can be formed into a desired shape.
- FIGS. 3 (a) and 3 (b) show an automobile seat P, and the packaged electromagnetic wave absorber X composed of FIGS. 1 (a) and 1 (b) is enclosed and stored inside the backrest portion 6. Or, the cover 5 can be removed and the interior of the car seat P can be directly attached to the ceiling, doors, floors, etc.
- the packaged electromagnetic wave absorber X having the configuration shown in FIG.
- cover 5 can be directly enclosed in the backrest portion 6 of the sofa P in the same manner as the automobile seat P except for the cover 5.
- FIGS. 4 (a) and 4 (b) show the wrapping wave absorber X or the outer cover 5 in the stuffed toy doll P.
- the intermediate flat plate wave absorber 3 having no projections and depressions is integrated or incorporated as a single body, separated into the entire back surface of the stuffed toy doll P, and the radio wave reflector 4
- FIGS. 5 (a) and 5 (b) show a case where two large and small cubic blocks are formed, and FIG. 5 (c) shows a block-like body formed entirely in a flat shape.
- Fig. 2 shows a modification of Fig. 2, in which the whole is integrated, except for the surface wave absorber 1, the intermediate A single layer or laminated structure of the plate-shaped electromagnetic wave absorber 3 is integrally formed as a urethane foam that is integrated as a whole, and the continuous foamed portion 2 is filled with carbon particles 7 and ferrite particles of conductive powder.
- the cover 5 can be formed or not attached. However, the illustrated one is shown as an unwrapped electromagnetic wave absorber Y without the cover 5. Then, the small body which does not need to be provided with the electromagnetic wave reflecting material 4 such as aluminum foil is cube-shaped with A being the large body and B being the large body.
- Fig. 6 shows a case where it is applied to the forehead, and a rectangular wave absorber B of the form shown in Fig. 2 (b), which is entirely flat, is used on the back of the forehead P.
- a rectangular wave absorber B of the form shown in Fig. 2 (b) which is entirely flat, is used on the back of the forehead P.
- a force magic tape (registered trademark) is provided, and one stopper or adhesive part is attached to the forehead p in advance.
- FIG. 7 shows a case where it is applied to a partition.
- a rectangular wave absorber B of the form shown in FIG. 2 (b) is replaced with a string, a magic tape (registered trademark), or Is the partition P using the adsorption action of the magnet
- Fig. 8 shows an integrally molded body of an unwrapped wave absorber Y obtained by integrally molding the final form.
- (A) shows a structure in which the cover 5 of Fig. 1 is removed.
- (c) shows the structure of a flat plate.
- conductive fine carbon particles 7 and bright fine particles are impregnated and fixed in the continuous foamed part 2, and if necessary, the electromagnetic reflector 4 is attached to the bottom.
- the whole is made of a conductive material, it is possible to completely eliminate static electricity generated in clothes of the human body and form a comfortable living environment.
- Microwave power of various radio waves up to millimeter waves, and the radio waves generated and emitted from various electrical devices are strong and harmful to the human body Carbon particles, ferrite particles, etc. contained in this radio wave absorber
- the combination of the conductive material and polyurethane foam makes it possible to absorb a wide band of radio waves from 800MHz to 100GHz by -15dB, while also reflecting the reflection effect of the metal foil radio wave reflector.
- electrostatic energy accumulated in the human body and clothes can be conductively attracted and discharged to the outside, eliminating radio wave interference in every part of the living environment where the radio wave absorber according to the present invention can be used, You can live a rich and safe life.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Laminated Bodies (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020077023685A KR100953006B1 (ko) | 2005-04-12 | 2005-04-12 | 전천후형 전파 반사 흡수체 및 그 결합 구조체 |
JP2007520979A JP4087438B2 (ja) | 2005-04-12 | 2005-04-12 | 全天候型電波反射吸収体及びその組込構造体 |
PCT/JP2005/007070 WO2006112001A1 (ja) | 2005-04-12 | 2005-04-12 | 全天候型電波反射吸収体及びその組込構造体 |
US11/918,200 US7551117B2 (en) | 2005-04-12 | 2005-04-12 | All-weather radio wave absorber having reflector and object into which such absorber is integrated |
EP05730574A EP1876018B1 (en) | 2005-04-12 | 2005-04-12 | All-weather radio wave reflector/absorber and its assembling structure |
CN200580049402XA CN101155686B (zh) | 2005-04-12 | 2005-04-12 | 全天候型电波反射吸收体及其装入构造体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/007070 WO2006112001A1 (ja) | 2005-04-12 | 2005-04-12 | 全天候型電波反射吸収体及びその組込構造体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006112001A1 true WO2006112001A1 (ja) | 2006-10-26 |
Family
ID=37114754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007070 WO2006112001A1 (ja) | 2005-04-12 | 2005-04-12 | 全天候型電波反射吸収体及びその組込構造体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7551117B2 (ja) |
EP (1) | EP1876018B1 (ja) |
JP (1) | JP4087438B2 (ja) |
KR (1) | KR100953006B1 (ja) |
CN (1) | CN101155686B (ja) |
WO (1) | WO2006112001A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015039017A (ja) * | 2008-04-30 | 2015-02-26 | テイカ株式会社 | 広帯域電磁波吸収体 |
WO2024018995A1 (ja) * | 2022-07-20 | 2024-01-25 | マクセル株式会社 | 電磁波吸収体 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1876018B1 (en) * | 2005-04-12 | 2011-08-17 | Ubiquitous Environment Company | All-weather radio wave reflector/absorber and its assembling structure |
DE102005022473B4 (de) * | 2005-05-14 | 2007-05-24 | Forschungszentrum Karlsruhe Gmbh | Vorrichtung zur Dämpfung von Reflexionen elektromagnetischer Wellen, Verfahren zu ihrer Herstellung und ihre Verwendung |
US7834799B1 (en) * | 2008-05-23 | 2010-11-16 | Composite Engineering, Inc. | System and method for fabricating composite laminate structures with co-laminated radar absorbing material |
DE102008036500A1 (de) | 2008-08-05 | 2010-02-11 | Hans-Dieter Cornelius | Verfahren zur Herstellung eines graduierten Mikrowellenabsorbers |
US8462039B2 (en) * | 2009-12-09 | 2013-06-11 | Electronics And Telecommunications Research Institute | Indoor electromagnetic environment implementing structure and a constructing method thereof |
GB2485524A (en) * | 2010-10-26 | 2012-05-23 | Vestas Wind Sys As | Foam core containing radar absorbing materials for composite structures |
US9569002B2 (en) * | 2010-12-17 | 2017-02-14 | Blackberry Limited | Portable electronic device having a sensor arrangement for gesture recognition |
KR20140003457A (ko) * | 2011-02-03 | 2014-01-09 | 가부시기가이샤니레꼬 | 띠모양체의 폭방향 단부 위치 측정 장치, 띠모양체의 폭방향 중심 위치 측정 장치 및 마이크로파 산란판 |
CN109413971A (zh) * | 2017-08-15 | 2019-03-01 | 深圳富泰宏精密工业有限公司 | 屏蔽箱及射频衰减控制方法 |
KR102276145B1 (ko) * | 2020-04-20 | 2021-07-12 | 한국항공우주산업 주식회사 | 전파흡수용 구조체 |
KR102488005B1 (ko) | 2021-05-07 | 2023-01-13 | 한국자동차연구원 | 밀리미터파 차폐 및 흡수용 복합소재 |
KR102350887B1 (ko) * | 2021-07-26 | 2022-01-14 | 주식회사 기가레인 | 휨 방지 구조를 가진 안테나 |
KR102583972B1 (ko) * | 2023-05-25 | 2023-09-26 | 주식회사 케이앤에스아이앤씨 | 위성안테나용 반사판 및 그 제조방법. |
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- 2005-04-12 EP EP05730574A patent/EP1876018B1/en not_active Expired - Fee Related
- 2005-04-12 JP JP2007520979A patent/JP4087438B2/ja not_active Expired - Fee Related
- 2005-04-12 KR KR1020077023685A patent/KR100953006B1/ko not_active IP Right Cessation
- 2005-04-12 US US11/918,200 patent/US7551117B2/en not_active Expired - Fee Related
- 2005-04-12 CN CN200580049402XA patent/CN101155686B/zh not_active Expired - Fee Related
- 2005-04-12 WO PCT/JP2005/007070 patent/WO2006112001A1/ja not_active Application Discontinuation
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015039017A (ja) * | 2008-04-30 | 2015-02-26 | テイカ株式会社 | 広帯域電磁波吸収体 |
WO2024018995A1 (ja) * | 2022-07-20 | 2024-01-25 | マクセル株式会社 | 電磁波吸収体 |
Also Published As
Publication number | Publication date |
---|---|
EP1876018A1 (en) | 2008-01-09 |
JPWO2006112001A1 (ja) | 2008-11-20 |
KR100953006B1 (ko) | 2010-04-14 |
US7551117B2 (en) | 2009-06-23 |
JP4087438B2 (ja) | 2008-05-21 |
EP1876018A4 (en) | 2010-06-16 |
KR20070112285A (ko) | 2007-11-22 |
US20090021416A1 (en) | 2009-01-22 |
CN101155686B (zh) | 2011-03-02 |
EP1876018B1 (en) | 2011-08-17 |
CN101155686A (zh) | 2008-04-02 |
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