JPH05299874A - Wave absorber and mounting method thereof - Google Patents

Wave absorber and mounting method thereof

Info

Publication number
JPH05299874A
JPH05299874A JP13167492A JP13167492A JPH05299874A JP H05299874 A JPH05299874 A JP H05299874A JP 13167492 A JP13167492 A JP 13167492A JP 13167492 A JP13167492 A JP 13167492A JP H05299874 A JPH05299874 A JP H05299874A
Authority
JP
Japan
Prior art keywords
radio wave
ferrite
wave absorber
plate
board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13167492A
Other languages
Japanese (ja)
Inventor
Toshihiko Tanaka
俊彦 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Ferrite Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ferrite Ltd filed Critical Hitachi Ferrite Ltd
Priority to JP13167492A priority Critical patent/JPH05299874A/en
Publication of JPH05299874A publication Critical patent/JPH05299874A/en
Pending legal-status Critical Current

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  • Aerials With Secondary Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

PURPOSE:To integrate a plurality of ferrite boards for easy handling by fixing the ferrite boards in a line to a rectangular board-like body made of a material having a dielectric constant lower than a fixed value, and making the external size of the board-like body smaller than that of the ferrite boards in a line. CONSTITUTION:Ten ferrite boards 1 are used for instance, and the ferrite boards 1 are fixed in a line by screws 3 to a thin and long calcium silicate board 2 to make a wave absorber 5. The wave absorbers 5 are used to form a wave absorber wall for buildings. The wave absorber wall is made by arranging the wave absorbers, and integrally concreting 7 them along with reinforcing bars 6. Further, as the board-like body to which the ferrite boards are fixed, an asbestos-cement board, a plane asbestos cement slate or the like may be used as long as their dielectric constant is 10 or lower. Moreover, the external size of the board-like body is made smaller than that of the ferrite boards in a line. The wave absorbers are used to form a wave absorber panel thereby to ease the manufacture.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、高層ビルの外壁に取り
付けられ、テレビ電波の不要反射を防止する電波吸収体
であるとか、ノイズ測定及び対策に用いられる電波暗室
に用いられる電波吸収体に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave absorber attached to the outer wall of a high-rise building to prevent unnecessary reflection of television radio waves, and to an electromagnetic wave absorber used in an anechoic chamber used for noise measurement and countermeasures. It is a thing.

【0002】[0002]

【従来の技術】従来の高層ビル用の電波吸収壁の一例の
断面図を図6に示す。この従来例は、電波反射体となる
鉄筋21がコンクリート22内に埋設され、その表面に
フェライト板23が張り付けられ、その前面に外装材2
4が施されている。このフェライト板23の張り付けの
配置を図7に示す。このフェライト板23は、到来電波
の磁界方向Mに連続し、電界方向Eに不連続に配置され
ている。
2. Description of the Related Art A cross-sectional view of an example of a conventional radio wave absorption wall for a high-rise building is shown in FIG. In this conventional example, a reinforcing bar 21 serving as a radio wave reflector is embedded in concrete 22, a ferrite plate 23 is attached to the surface thereof, and an exterior material 2 is provided on the front surface thereof.
4 is given. FIG. 7 shows the arrangement of the ferrite plate 23 attached. The ferrite plate 23 is arranged continuously in the magnetic field direction M of the incoming radio wave and discontinuously in the electric field direction E.

【0003】[0003]

【発明が解決しようとする課題】この電波吸収壁に用い
るフェライト板は、例えば100mm×100mm×9
mmといった平板状であり、これを一枚毎に配置して一
定の大きさの電波吸収壁用のパネルを形成し、それをビ
ル外壁に取り付けていた。その電波吸収パネルを構成す
る場合、フェライト板は一枚一枚配置されており、工数
がかかっていた。更に、この電波吸収壁では、フェライ
ト板を磁界方向Mに連続に配置することが必要であり、
そのフェライト板間にギャップが生じると電波吸収壁の
電波吸収特性が劣化するという問題点がある。そのた
め、フェライト板の配置は、ギャップを生じないように
慎重に作業する必要があった。また、電波暗室において
も、一定の大きさの電波吸収パネルを構成し、それを暗
室内の壁面に取り付けて構成される。その電波吸収パネ
ルを構成する場合も、フェライト板を一枚毎に配置して
いた。しかも、全面にギャップが発生しないように配置
する必要があり、非常に工数のかかるものであった。本
発明は、上記の事を鑑みて、フェライト板の配置の容易
な電波吸収体及びその取り付け方法を提供することを目
的とする。
The ferrite plate used for the electromagnetic wave absorbing wall is, for example, 100 mm × 100 mm × 9.
It was a flat plate shape such as mm, and this was arranged one by one to form a panel for a radio wave absorption wall of a certain size, which was attached to the outer wall of the building. When constructing the radio wave absorption panel, the ferrite plates were arranged one by one, which required man-hours. Further, in this radio wave absorption wall, it is necessary to dispose ferrite plates continuously in the magnetic field direction M,
If a gap occurs between the ferrite plates, there is a problem that the electromagnetic wave absorption characteristics of the electromagnetic wave absorption wall deteriorate. Therefore, it is necessary to carefully work the arrangement of the ferrite plate so as not to create a gap. Further, also in an anechoic chamber, a radio wave absorption panel of a certain size is constructed and attached to a wall surface in the anechoic chamber. Also when constructing the radio wave absorption panel, the ferrite plates were arranged one by one. In addition, it is necessary to dispose so as not to generate a gap on the entire surface, which is very time-consuming. The present invention has been made in view of the above circumstances, and an object thereof is to provide an electromagnetic wave absorber in which a ferrite plate can be easily arranged and a method for mounting the same.

【0004】[0004]

【課題を解決するための手段】本発明は、誘電率が10
以下の材料からなる長方形状の板状体にフェライト板を
一列に固着し、前記板状体の外形寸法が前記一列のフェ
ライト板の外形寸法より小さく形成されている電波吸収
体である。また本発明は、一列のフェライト板の両面を
テープで接続固定した電波吸収体である。また本発明
は、電波吸収パネルを作製するとき、複数個のフェライ
ト板を一列に接続固定してなる電波吸収体を用い、該電
波吸収体を所定位置に配置して電波吸収パネルを作製す
るものである。
The present invention has a dielectric constant of 10
This is a radio wave absorber in which ferrite plates are fixed in a line to a rectangular plate made of the following materials, and the outer dimensions of the plate are smaller than the outer dimensions of the one row of ferrite plates. Further, the present invention is a radio wave absorber in which both sides of a row of ferrite plates are connected and fixed with tape. Further, according to the present invention, when a radio wave absorption panel is manufactured, a radio wave absorption panel formed by connecting and fixing a plurality of ferrite plates in a row is used, and the radio wave absorption panel is arranged at a predetermined position to manufacture the radio wave absorption panel. Is.

【0005】[0005]

【実施例】本発明に係る一実施例の平面図を図1に、側
面図を図2に示す。この実施例は、100mm×100
mm×9mmのフェライト板1を10枚用い、このフェ
ライト板1を96mm×996mmの細長いケイカル板
2に、ビス3で一列に固定した電波吸収体5である。そ
して、ビス3の先端部にナット4が止められている。こ
の電波吸収体5を用いて、ビル用電波吸収壁を構成した
場合の断面図を図4に示す。この電波吸収壁は、上記実
施例の電波吸収体5を例えば図5に示すように配置し、
電波反射体となる鉄筋6とともにコンクリート7で一体
に打設されている。このとき、電波吸収体5はビス3と
ナット4により、確実に固定される。上記実施例では、
フェライト板をケイカル板に固定する手段として、ビス
を用いたが接着剤で固定しても良いし、その両方を用い
ても良い。またフェライト板が固着される板状体として
は、石綿セメント板、太平板等でも良く、誘電率が10
以下であれば良い。また、この板状体は、一列のフェラ
イト板の外形寸法より小さい外形寸法としている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A plan view of one embodiment according to the present invention is shown in FIG. 1 and a side view thereof is shown in FIG. In this example, 100 mm × 100
This is a radio wave absorber 5 in which ten ferrite plates 1 having a size of 9 mm × 9 mm are used, and the ferrite plates 1 are fixed to a slender silica plate 2 having a size of 96 mm × 996 mm with screws 3 in a line. The nut 4 is fixed to the tip of the screw 3. FIG. 4 shows a cross-sectional view of a case where a radio wave absorbing wall for a building is constructed using the radio wave absorber 5. In this radio wave absorption wall, the radio wave absorber 5 of the above-mentioned embodiment is arranged as shown in FIG. 5,
It is cast in one piece with concrete 7 together with the reinforcing bar 6 serving as a radio wave reflector. At this time, the radio wave absorber 5 is securely fixed by the screw 3 and the nut 4. In the above example,
Although screws are used as a means for fixing the ferrite plate to the silica plate, they may be fixed with an adhesive, or both may be used. The plate-like body to which the ferrite plate is fixed may be an asbestos cement plate, a thick flat plate, or the like, and has a dielectric constant of 10
The following is acceptable. Further, the plate-shaped body has an outer dimension smaller than the outer dimension of the single row of ferrite plates.

【0006】本発明に係る別の実施例の平面図を図3に
示す。この実施例は、フェライト板1の両面をテープ8
で固定した電波吸収体9である。この電波吸収体9は、
図4のような電波吸収パネルを構成する場合、電波吸収
体9の固着性が低いことが予想される。その場合、図2
の実施例のようにビス等の突起物を取り付けても良い。
また、電波吸収パネルとしては、図4に示す構造のみで
なく、フェライト板の前面にも壁材が配置され、フェラ
イト板を内蔵する構造の電波吸収パネルもあり、その場
合等突起物を設けないで使用される場合もある。またテ
ープの幅等は、適宜選択すれば良く、テープ材として
は、ある程度の強度を有するものが良い。本発明の場
合、複数個のフェライト板を一列に配置し、固定した電
波吸収体を構成し、この電波吸収体を用いて電波吸収パ
ネルを構成するものであり、電波吸収パネルの製作が極
めて容易となる。この一列のフェライト板としては、5
〜10枚程度、長さ寸法として500〜1000mmの
長さであることが取り扱い及び作業上望ましい。またフ
ェライト板の寸法及びフェライト板が固着される板状体
の寸法は上記記載の寸法に限定されるものでなく、適宜
決定されるものである。また上記実施例では、ビル用の
電波吸収パネルについて説明したが、電波暗室用の電波
吸収体としても同様に有効である。
A plan view of another embodiment according to the present invention is shown in FIG. In this embodiment, the tape 8 is provided on both sides of the ferrite plate 1.
It is the radio wave absorber 9 fixed by. This radio wave absorber 9 is
When the radio wave absorption panel as shown in FIG. 4 is configured, it is expected that the radio wave absorber 9 has low adhesion. In that case,
A protrusion such as a screw may be attached as in the above embodiment.
Further, as the radio wave absorption panel, not only the structure shown in FIG. 4 but also a radio wave absorption panel in which a wall material is arranged on the front surface of the ferrite plate and the ferrite plate is built-in, in which case no protrusions are provided. Sometimes used in. Further, the width of the tape may be appropriately selected, and the tape material should have a certain strength. In the case of the present invention, a plurality of ferrite plates are arranged in a row to form a fixed electromagnetic wave absorber, and this electromagnetic wave absorber is used to form an electromagnetic wave absorbing panel, which is extremely easy to manufacture. Becomes For this single row of ferrite plates, 5
It is desirable in terms of handling and work that the length is about 10 to 10 and the length is 500 to 1000 mm. Further, the size of the ferrite plate and the size of the plate-shaped body to which the ferrite plate is fixed are not limited to the above-mentioned sizes, and may be appropriately determined. Further, in the above-mentioned embodiment, the radio wave absorbing panel for a building has been described, but it is similarly effective as a radio wave absorber for an anechoic chamber.

【0007】[0007]

【発明の効果】本発明によれば、従来一枚一枚取り扱っ
ていたフェライト板を複数枚一体化して用いることによ
り、取り扱いが容易となり、しかも電波吸収パネルの作
製が極めて容易となるものである。
According to the present invention, by using a plurality of ferrite plates, which have been conventionally handled one by one, in an integrated manner, the handling becomes easy, and furthermore, the radio wave absorption panel becomes extremely easy to manufacture. ..

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る一実施例の平面図である。FIG. 1 is a plan view of an embodiment according to the present invention.

【図2】本発明に係る一実施例の側面図である。FIG. 2 is a side view of an embodiment according to the present invention.

【図3】本発明に係る別の実施例の平面図である。FIG. 3 is a plan view of another embodiment according to the present invention.

【図4】本発明に係る一実施例を用いた電波吸収パネル
の断面図である。
FIG. 4 is a cross-sectional view of a radio wave absorption panel using an embodiment according to the present invention.

【図5】本発明に係る一実施例の配列の様子を示す図で
ある。
FIG. 5 is a diagram showing a state of arrangement of an embodiment according to the present invention.

【図6】従来例の電波吸収壁の断面図である。FIG. 6 is a cross-sectional view of a conventional radio wave absorption wall.

【図7】従来例のフェライト板の配列の様子を示す図で
ある。
FIG. 7 is a diagram showing a state of arrangement of ferrite plates of a conventional example.

【符号の説明】[Explanation of symbols]

1 フェライト板 2 ケイカル板 3 ビス 4 ナット 5、9 電波吸収体 6 鉄筋 7 コンクリート 8 テープ 1 Ferrite Plate 2 Keikal Plate 3 Screw 4 Nut 5, 9 Radio Wave Absorber 6 Reinforcing Bar 7 Concrete 8 Tape

【手続補正書】[Procedure amendment]

【提出日】平成4年11月11日[Submission date] November 11, 1992

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0003[Name of item to be corrected] 0003

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0003】[0003]

【発明が解決しようとする課題】この電波吸収壁に用い
るフェライト板は、例えば100mm×100mm×9
mmといった平板状であり、これを一枚毎に配置して一
定の大きさの電波吸収壁用のパネルを形成し、それをビ
ル外壁に取り付けていた。その電波吸収パネルを構成す
る場合、フェライト板は一枚一枚配置されており、工数
がかかっていた。更に、この電波吸収壁では、フェライ
ト板を磁界方向Mに連続に配置することが必要であり、
そのフェライト板間にギャップが生じると電波吸収壁の
電波吸収特性が劣化するという問題点がある。そのた
め、フェライト板の配置は、ギャップを生じないように
慎重に作業する必要があった。また、電波暗室において
も、一定の大きさの電波吸収パネルを構成し、それを暗
室内の壁面に取り付けて構成される。その電波吸収パネ
ルを構成する場合も、フェライト板を一枚毎に配置して
いた。しかも、全面にギャップが発生しないように配置
する必要があり、非常に工数のかかるものであった。
らに、長さが例えば500mm以上の長尺フェライト板
の製造方法として、押し出し成形法や、い込み成形法な
どがあるが、焼成時の変形や、経済性等に問題があるた
め、実用化されていない。本発明は、上記の事を鑑み
て、フェライト板の配置の容易な電波吸収体及びその取
り付け方法を提供することを目的とする。
The ferrite plate used for the electromagnetic wave absorbing wall is, for example, 100 mm × 100 mm × 9.
It was a flat plate shape such as mm, and this was arranged one by one to form a panel for a radio wave absorption wall of a certain size, which was attached to the outer wall of the building. When constructing the radio wave absorption panel, the ferrite plates were arranged one by one, which required man-hours. Further, in this radio wave absorption wall, it is necessary to dispose ferrite plates continuously in the magnetic field direction M,
If a gap occurs between the ferrite plates, there is a problem that the electromagnetic wave absorption characteristics of the electromagnetic wave absorption wall deteriorate. Therefore, it is necessary to carefully work the arrangement of the ferrite plate so as not to create a gap. Further, also in an anechoic chamber, a radio wave absorption panel of a certain size is constructed and attached to a wall surface in the anechoic chamber. Also when constructing the radio wave absorption panel, the ferrite plates were arranged one by one. In addition, it is necessary to dispose so as not to generate a gap on the entire surface, which is very time-consuming. It
In addition, a long ferrite plate with a length of 500 mm or more, for example
Manufacturing methods include extrusion molding and penetration molding.
However, there was a problem with deformation at the time of firing, economical efficiency, etc.
Therefore, it has not been put to practical use. The present invention has been made in view of the above circumstances, and an object thereof is to provide an electromagnetic wave absorber in which a ferrite plate can be easily arranged and a method for mounting the same.

【手続補正2】[Procedure Amendment 2]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0005[Correction target item name] 0005

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0005】[0005]

【実施例】本発明に係る一実施例の平面図を図1に、側
面図を図2に示す。この実施例は、100mm×100
mm×9mmのフェライト板1を10枚用い、このフェ
ライト板1を96mm×996mmの細長いケイカル板
2に、ビス3で一列に固定した電波吸収体5である。そ
して、ビス3の先端部にナット4が止められている。こ
の電波吸収体5を用いて、ビル用電波吸収壁を構成した
場合の断面図を図4に示す。この電波吸収壁は、上記実
施例の電波吸収体5を例えば図5に示すように配置し、
電波反射体となる鉄筋6とともにコンクリート7で一体
に打設されている。このとき、電波吸収体5はビス3と
ナット4により、確実に固定される。上記実施例では、
フェライト板をケイカル板に固定する手段として、ビス
を用いたが接着剤で固定しても良いし、その両方を用い
ても良い。またフェライト板が固着される板状体として
は、石綿セメント板、太平板等でも良く、誘電率が10
以下であれば良い。しかし、誘電率が10以上(10は
含まない)では、高い反射損失が得られる周波数範囲が
狭くなるといった問題が生じるため、10以下と範囲を
限定した。また、この板状体は、一列のフェライト板の
外形寸法より小さい外形寸法としている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A plan view of one embodiment according to the present invention is shown in FIG. 1 and a side view thereof is shown in FIG. In this example, 100 mm × 100
This is a radio wave absorber 5 in which ten ferrite plates 1 having a size of 9 mm × 9 mm are used, and the ferrite plates 1 are fixed to a slender silica plate 2 having a size of 96 mm × 996 mm with screws 3 in a line. The nut 4 is fixed to the tip of the screw 3. FIG. 4 shows a cross-sectional view of a case where a radio wave absorbing wall for a building is constructed using the radio wave absorber 5. In this radio wave absorption wall, the radio wave absorber 5 of the above-mentioned embodiment is arranged as shown in FIG. 5,
It is cast in one piece with concrete 7 together with the reinforcing bar 6 serving as a radio wave reflector. At this time, the radio wave absorber 5 is securely fixed by the screw 3 and the nut 4. In the above example,
Although screws are used as a means for fixing the ferrite plate to the calcareous plate, they may be fixed by an adhesive or both of them may be used. The plate-like body to which the ferrite plate is fixed may be an asbestos cement plate, a thick flat plate, or the like, and has a dielectric constant of 10
The following is acceptable. However, the dielectric constant is 10 or more (10 is
(Not included), the frequency range where high reflection loss is obtained is
Since the problem of narrowing occurs, the range should be 10 or less.
Limited The plate-like body has an outer dimension smaller than the outer dimension of the single row of ferrite plates.

【手続補正3】[Procedure 3]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0006[Correction target item name] 0006

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0006】本発明に係る別の実施例の平面図を図3に
示す。この実施例は、フェライト板1の両面をテープ8
で固定した電波吸収体9である。この電波吸収体9は、
図4のような電波吸収パネルを構成する場合、電波吸収
体9の固着性が低いことが予想される。その場合、図2
の実施例のようにビス等の突起物を取り付けても良い。
また、電波吸収パネルとしては、図4に示す構造のみで
なく、フェライト板の前面にも壁材が配置され、フェラ
イト板を内蔵する構造の電波吸収パネルもあり、その場
合等突起物を設けないで使用される場合もある。またテ
ープ幅等は、適宜選択すれば良く、テープ材としては、
ある程度の強度を有するものが良い。さらに、テープ、
ケイカル板、ビス、ナット等は、電波吸収壁中にあって
も、電波吸収壁の強度、耐久性等の物理特性に影響を与
えないものであった。本発明の場合、複数個のフェライ
ト板を一列に配置し、固定した電波吸収体を構成し、こ
の電波吸収体を用いて電波吸収パネルを構成するもので
あり、電波吸収パネルの製作が極めて容易となる。この
一列のフェライト板としては、5〜10枚程度、長さ寸
法として300〜1000mmの長さであることが取り
扱い及び作業上望ましい。またフェライト板の寸法及び
フェライト板が固着される板状体の寸法は上記記載の寸
法に限定されるものでなく、適宜決定されるものであ
る。また上記実施例では、ビル用の電波吸収パネルにつ
いて説明したが、電波暗室用の電波吸収体としても同様
に有効である。
A plan view of another embodiment according to the present invention is shown in FIG. In this embodiment, the tape 8 is provided on both sides of the ferrite plate 1.
It is the radio wave absorber 9 fixed by. This radio wave absorber 9 is
When the radio wave absorption panel as shown in FIG. 4 is configured, it is expected that the radio wave absorber 9 has low adhesion. In that case,
A protrusion such as a screw may be attached as in the above embodiment.
Further, as the radio wave absorption panel, not only the structure shown in FIG. 4 but also a radio wave absorption panel in which a wall material is arranged on the front surface of the ferrite plate and the ferrite plate is built-in, in which case no protrusions are provided. Sometimes used in. Also, the tape width and the like may be appropriately selected, and as the tape material,
Those having a certain level of strength are preferable. In addition, tape,
The calcareous plate, screws, nuts, etc. are inside the electromagnetic wave absorption wall.
Also affects the physical characteristics such as strength and durability of the electromagnetic wave absorption wall.
It was impossible. In the case of the present invention, a plurality of ferrite plates are arranged in a row to form a fixed electromagnetic wave absorber, and this electromagnetic wave absorber is used to form an electromagnetic wave absorption panel, which is extremely easy to manufacture. Becomes It is desirable in terms of handling and work that this one row of ferrite plates has a length of about 5 to 10 sheets and a length dimension of 300 to 1000 mm. Further, the size of the ferrite plate and the size of the plate-shaped body to which the ferrite plate is fixed are not limited to the above-mentioned sizes, and may be appropriately determined. Further, in the above-mentioned embodiment, the radio wave absorbing panel for a building has been described, but it is similarly effective as a radio wave absorber for an anechoic chamber.

【手続補正4】[Procedure amendment 4]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0007[Correction target item name] 0007

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0007】[0007]

【発明の効果】本発明によれば、従来一枚一枚取り扱っ
ていたフェライト板を複数枚一体化して用いることによ
り、取り扱いが容易で、しかも電波吸収パネルの作製が
極めて容易となりさらには、磁界方向のギャップが極め
て少なくなるため、高性能な電波吸収壁を得ることがで
きるものである。
According to the present invention, the conventional one by one is handled
By using multiple ferrite plates that were previously integrated.
It is easy to handle and it is easy to make an electromagnetic wave absorption panel.
It is extremely easy, and the gap in the magnetic field direction is extremely high.
Therefore, it is possible to obtain a high-performance electromagnetic wave absorption wall.
It can be done.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 誘電率が10以下の材料からなる長方形
状の板状体に、フェライト板を一列に固着し、前記板状
体の外形寸法が前記一列のフェライト板の外形寸法より
小さく形成されていることを特徴とする電波吸収体。
1. Ferrite plates are fixed in a row to a rectangular plate-like body made of a material having a dielectric constant of 10 or less, and the outer dimensions of the plate-like body are smaller than the outer dimensions of the row of ferrite plates. A radio wave absorber characterized in that.
【請求項2】 一列のフェライト板の両面をテープで接
続固定したことを特徴とする電波吸収体。
2. An electromagnetic wave absorber characterized in that both sides of a row of ferrite plates are connected and fixed with tape.
【請求項3】 電波吸収パネルを作製するとき、複数個
のフェライト板を一列に接続固定してなる電波吸収体を
用い、該電波吸収体を所定位置に配置して電波吸収パネ
ルを作製することを特徴とする電波吸収体の取り付け方
法。
3. A radio wave absorption panel is produced by using a radio wave absorber formed by connecting and fixing a plurality of ferrite plates in a row when producing the radio wave absorption panel. A method of mounting an electromagnetic wave absorber characterized by.
JP13167492A 1992-04-23 1992-04-23 Wave absorber and mounting method thereof Pending JPH05299874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13167492A JPH05299874A (en) 1992-04-23 1992-04-23 Wave absorber and mounting method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13167492A JPH05299874A (en) 1992-04-23 1992-04-23 Wave absorber and mounting method thereof

Publications (1)

Publication Number Publication Date
JPH05299874A true JPH05299874A (en) 1993-11-12

Family

ID=15063579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13167492A Pending JPH05299874A (en) 1992-04-23 1992-04-23 Wave absorber and mounting method thereof

Country Status (1)

Country Link
JP (1) JPH05299874A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4492834B2 (en) * 2000-12-28 2010-06-30 Fdk株式会社 Electromagnetic wave suppressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62221199A (en) * 1986-03-24 1987-09-29 株式会社 リケン Magnetic shielding material
JPS63313898A (en) * 1987-06-17 1988-12-21 Fujita Corp Radio wave absorbing wall
JPH01241898A (en) * 1988-03-24 1989-09-26 Fujita Corp Radio wave absorption panel and manufacture thereof
JPH01257398A (en) * 1988-03-07 1989-10-13 Fujita Corp Manufacture of wave absorbing panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62221199A (en) * 1986-03-24 1987-09-29 株式会社 リケン Magnetic shielding material
JPS63313898A (en) * 1987-06-17 1988-12-21 Fujita Corp Radio wave absorbing wall
JPH01257398A (en) * 1988-03-07 1989-10-13 Fujita Corp Manufacture of wave absorbing panel
JPH01241898A (en) * 1988-03-24 1989-09-26 Fujita Corp Radio wave absorption panel and manufacture thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4492834B2 (en) * 2000-12-28 2010-06-30 Fdk株式会社 Electromagnetic wave suppressor

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