JPS5498101A - Reflection preventing unit - Google Patents
Reflection preventing unitInfo
- Publication number
- JPS5498101A JPS5498101A JP424178A JP424178A JPS5498101A JP S5498101 A JPS5498101 A JP S5498101A JP 424178 A JP424178 A JP 424178A JP 424178 A JP424178 A JP 424178A JP S5498101 A JPS5498101 A JP S5498101A
- Authority
- JP
- Japan
- Prior art keywords
- ferrite
- electromagnetic wave
- bridge
- unit
- iron tower
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 8
- 229910000859 α-Fe Inorganic materials 0.000 abstract 5
- 229910052742 iron Inorganic materials 0.000 abstract 4
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 239000011888 foil Substances 0.000 abstract 2
- 230000002265 prevention Effects 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Aerials With Secondary Devices (AREA)
- Noise Elimination (AREA)
Abstract
PURPOSE:To prevent an electromagnetic wave from being reflected from an iron tower, a bridge, etc., by covering conductive bars, which are constituents of the iron tower, the bridge, etc., with a ferrite cylinder to enhance impedance. CONSTITUTION:Reflection prevention unit 1 which is arranged around iron pipe 2 consists of semicylindrical ferrite half bodies 3 and 4 which can unite with each other, and conductive foil 5 such as aluminum foil is fitted to the inside circumference face of unit 1. Since the surface impedance becomes high because materials having a high electromagnetic wave absorption characteristic are used as the ferrite forming ferrite half bodies 3 and 4, the current is flowed little, and as a result, the reflected electromagnetic wave is reduced. It is sufficient for this reflection prevention unit if the circumference of conductors of the iron tower, the bridge, etc., is surrounded by the ferrite which has a high electromagnetic wave absorption characteristic, and the form of this unit may be selected properly as desired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP424178A JPS5498101A (en) | 1978-01-20 | 1978-01-20 | Reflection preventing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP424178A JPS5498101A (en) | 1978-01-20 | 1978-01-20 | Reflection preventing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5498101A true JPS5498101A (en) | 1979-08-02 |
Family
ID=11579041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP424178A Pending JPS5498101A (en) | 1978-01-20 | 1978-01-20 | Reflection preventing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5498101A (en) |
-
1978
- 1978-01-20 JP JP424178A patent/JPS5498101A/en active Pending
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