GR20050100283A - Παθητικη συσκευη εξασθενησης της ισχυος υψισυχνωνακτινοβολιων απο καλωδια που συνδεονται σε ασυρματες συσκευες κινητων τηλεφωνων - Google Patents
Παθητικη συσκευη εξασθενησης της ισχυος υψισυχνωνακτινοβολιων απο καλωδια που συνδεονται σε ασυρματες συσκευες κινητων τηλεφωνωνInfo
- Publication number
- GR20050100283A GR20050100283A GR20050100283A GR20050100283A GR20050100283A GR 20050100283 A GR20050100283 A GR 20050100283A GR 20050100283 A GR20050100283 A GR 20050100283A GR 20050100283 A GR20050100283 A GR 20050100283A GR 20050100283 A GR20050100283 A GR 20050100283A
- Authority
- GR
- Greece
- Prior art keywords
- wireless mobile
- passive device
- cable
- attenuation
- cables
- Prior art date
Links
- 230000005855 radiation Effects 0.000 title abstract 2
- WUCBICXOWNTEAT-UHFFFAOYSA-N [O--].[O--].[Ni++].[Zn++] Chemical class [O--].[O--].[Ni++].[Zn++] WUCBICXOWNTEAT-UHFFFAOYSA-N 0.000 abstract 1
- 230000005672 electromagnetic field Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter
Abstract
Παθητική συσκευή εξασθένησης της ισχύος υψίσυχνωνακτινοβολιών από καλώδια που συνδέονται σε ασύρματες συσκευές κινητών τηλεφώνων, αποτελούμενη από ελαστικό κυλινδρικό σωλήνα (3), κομμένο καθ΄όλο τομήκος του σε μια πλευρά που περιβάλλει σφιχτά την εξωτερική επιφάνεια του καλωδίου (4) που απολήγει στο μικρόφωνο (7) - μικροακουστικό (8), πιεζόμενος από τα δύο ίδια σε διαστάσεις και υλικό κατασκευήςημικυκλικά κυλινδρικά μέρη (1) και (2) που εφαρμοζόμενα ακριβώς, δίχως ν' αφήνουν κενό στα μεταξύ τους σημεία εφαρμογής, συνθέτουν μικρό φεριτικό πυρήνα οξειδίων Νικελίου - Ψευδαργύρου και είναι τοποθετημένα εντός πλαστικού περιβλήματος (5) που διπλώνει, κλείνει, ασφαλίζοντας σε δύο σημεία. Ετσι σταθεροποιείται και αυτοστηρίζεται στο ίδο σημείο επί του καλωδίου που προσαρόζεται ολόκληρη η παθητική αυτή συσκευή. Εξασθενεί δε την ένταση ηλεκτρομαγνητικών πεδίων, εύρους συχνοτήτων από 800MHz-2500MHz, προσαρμοζόμενη σε σημείο που υπολογίζεται περίπου στο μέσο του μήκους του καλωδίου (4) που συνδέει το μικρόφωνο (7) - μικροακουστικό (8) με την συσκευή του ασύρματου κινητού τηλεφώνου (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR20050100283A GR20050100283A (el) | 2005-06-08 | 2005-06-08 | Παθητικη συσκευη εξασθενησης της ισχυος υψισυχνωνακτινοβολιων απο καλωδια που συνδεονται σε ασυρματες συσκευες κινητων τηλεφωνων |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR20050100283A GR20050100283A (el) | 2005-06-08 | 2005-06-08 | Παθητικη συσκευη εξασθενησης της ισχυος υψισυχνωνακτινοβολιων απο καλωδια που συνδεονται σε ασυρματες συσκευες κινητων τηλεφωνων |
Publications (1)
Publication Number | Publication Date |
---|---|
GR20050100283A true GR20050100283A (el) | 2007-01-19 |
Family
ID=38109765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR20050100283A GR20050100283A (el) | 2005-06-08 | 2005-06-08 | Παθητικη συσκευη εξασθενησης της ισχυος υψισυχνωνακτινοβολιων απο καλωδια που συνδεονται σε ασυρματες συσκευες κινητων τηλεφωνων |
Country Status (1)
Country | Link |
---|---|
GR (1) | GR20050100283A (el) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4983932A (en) * | 1988-09-26 | 1991-01-08 | Kitagawa Industries Co., Ltd. | Electric noise absorber |
JPH11273957A (ja) * | 1998-03-25 | 1999-10-08 | Kankyo Denji Gijutsu Kenkyusho:Kk | 複合磁性材料を用いたノイズ吸収装置 |
JP2000277339A (ja) * | 1999-03-25 | 2000-10-06 | Ricoh Co Ltd | 電磁遮蔽部材 |
WO2002025975A1 (en) * | 2000-09-20 | 2002-03-28 | Neuroguard Pty Ltd | Headset for mobile phone |
GB2367443A (en) * | 2000-04-04 | 2002-04-03 | Hassan Paddy Abdel Salam | Means of reducing radiation in a mobile phone earpiece by the use of ferrite beads |
WO2002035809A2 (en) * | 2000-10-24 | 2002-05-02 | Ron Armon | Method and device for reducing radiation of a mobile telephone |
EP1303054A1 (en) * | 2001-10-12 | 2003-04-16 | NTEX Associates | Device for reducing radiation of a hands-free kit of a mobile phone |
US20030176164A1 (en) * | 2000-08-15 | 2003-09-18 | Yaron Hefetz | Radiation protection device |
-
2005
- 2005-06-08 GR GR20050100283A patent/GR20050100283A/el not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4983932A (en) * | 1988-09-26 | 1991-01-08 | Kitagawa Industries Co., Ltd. | Electric noise absorber |
JPH11273957A (ja) * | 1998-03-25 | 1999-10-08 | Kankyo Denji Gijutsu Kenkyusho:Kk | 複合磁性材料を用いたノイズ吸収装置 |
JP2000277339A (ja) * | 1999-03-25 | 2000-10-06 | Ricoh Co Ltd | 電磁遮蔽部材 |
GB2367443A (en) * | 2000-04-04 | 2002-04-03 | Hassan Paddy Abdel Salam | Means of reducing radiation in a mobile phone earpiece by the use of ferrite beads |
US20030176164A1 (en) * | 2000-08-15 | 2003-09-18 | Yaron Hefetz | Radiation protection device |
WO2002025975A1 (en) * | 2000-09-20 | 2002-03-28 | Neuroguard Pty Ltd | Headset for mobile phone |
WO2002035809A2 (en) * | 2000-10-24 | 2002-05-02 | Ron Armon | Method and device for reducing radiation of a mobile telephone |
EP1303054A1 (en) * | 2001-10-12 | 2003-04-16 | NTEX Associates | Device for reducing radiation of a hands-free kit of a mobile phone |
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