JPS641080B2 - - Google Patents
Info
- Publication number
- JPS641080B2 JPS641080B2 JP56013777A JP1377781A JPS641080B2 JP S641080 B2 JPS641080 B2 JP S641080B2 JP 56013777 A JP56013777 A JP 56013777A JP 1377781 A JP1377781 A JP 1377781A JP S641080 B2 JPS641080 B2 JP S641080B2
- Authority
- JP
- Japan
- Prior art keywords
- absorber
- ferrite
- radio wave
- carbonyl iron
- frequency
- 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.)
- Expired
Links
- 239000006096 absorbing agent Substances 0.000 claims description 53
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 229910000859 α-Fe Inorganic materials 0.000 claims description 20
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 claims description 2
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 description 21
- 239000003822 epoxy resin Substances 0.000 description 9
- 229920000647 polyepoxide Polymers 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JXGGISJJMPYXGJ-UHFFFAOYSA-N lithium;oxido(oxo)iron Chemical compound [Li+].[O-][Fe]=O JXGGISJJMPYXGJ-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
Classifications
-
- 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
Landscapes
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56013777A JPS57129003A (en) | 1981-02-03 | 1981-02-03 | Microwave absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56013777A JPS57129003A (en) | 1981-02-03 | 1981-02-03 | Microwave absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57129003A JPS57129003A (en) | 1982-08-10 |
| JPS641080B2 true JPS641080B2 (enrdf_load_stackoverflow) | 1989-01-10 |
Family
ID=11842666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56013777A Granted JPS57129003A (en) | 1981-02-03 | 1981-02-03 | Microwave absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57129003A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6284363B1 (en) | 1998-03-23 | 2001-09-04 | Fuji Polymer Industries Co., Ltd. | Electromagnetic wave absorbing thermoconductive silicone gel molded sheet and method for producing the same |
| JP2001189585A (ja) * | 1999-12-28 | 2001-07-10 | Daido Steel Co Ltd | 高次吸収ピークを利用した電磁波吸収体 |
| EP1830622A4 (en) * | 2004-11-30 | 2011-01-19 | Bridgestone Corp | RUBBER COMPOSITION FOR A WAVE ABSORBER AND WAVE ABSORPTION SHEET |
| CZ306440B6 (cs) * | 2014-01-22 | 2017-01-25 | Univerzita Tomáše Bati ve Zlíně | Širokopásmový absorbér elektromagnetického záření a způsob jeho výroby |
| CN111590232B (zh) * | 2019-02-20 | 2022-01-28 | 北京梦之墨科技有限公司 | 一种焊接材料及其制备方法 |
-
1981
- 1981-02-03 JP JP56013777A patent/JPS57129003A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57129003A (en) | 1982-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3422709B2 (ja) | 電波吸収体 | |
| US6359581B2 (en) | Electromagnetic wave abosrber | |
| US5296859A (en) | Broadband wave absorption apparatus | |
| JPS641080B2 (enrdf_load_stackoverflow) | ||
| JPH0650799B2 (ja) | 電波吸収材 | |
| JPS5927597A (ja) | 電波吸収体 | |
| Ukaegbu et al. | Parametric analysis and bandwidth optimisation of hybrid linear-exponential tapered slot Vivaldi antennas | |
| US5892188A (en) | Porous ferrite wave absorber | |
| JP2729486B2 (ja) | 電波吸収体用ニッケル−亜鉛系フェライト材 | |
| JP2706772B2 (ja) | 電波吸収体用マグネシウム−亜鉛系フエライト材 | |
| JP2806528B2 (ja) | 電波吸収体用マグネシウム−亜鉛系フェライト材 | |
| JPH05299872A (ja) | ９００ＭＨｚ帯用電波吸収体 | |
| JPH07302992A (ja) | 多孔質フェライト電波吸収体 | |
| JPH0722769A (ja) | 複合型電波吸収体 | |
| KR100258789B1 (ko) | 전자파 흡수용 보드 | |
| JPH07302991A (ja) | 多孔質フェライト電波吸収体 | |
| US11700718B2 (en) | Particles for absorbing GHz-band electromagnetic wave and electromagnetic wave absorber including same | |
| Idrees et al. | A Novel Low Profile Polarization Insensitive Electromagnetic Shield for X-Band Applications | |
| KR20030023899A (ko) | 이동통신주파수대역용 박형 전파흡수체 | |
| JPS6290909A (ja) | 電磁シ−ルド材 | |
| KR930011549B1 (ko) | 광대역 전파흡수체 | |
| KR910002349B1 (ko) | 전파흡수체 | |
| Chetouah et al. | Miniaturized rectangular dielectric resonator antenna for WCS standards | |
| JPH05251888A (ja) | 薄型狭帯域電波吸収体 | |
| JP2654598B2 (ja) | アンテナ |