DE3321132A1 - Spulenanordnung - Google Patents
SpulenanordnungInfo
- Publication number
- DE3321132A1 DE3321132A1 DE19833321132 DE3321132A DE3321132A1 DE 3321132 A1 DE3321132 A1 DE 3321132A1 DE 19833321132 DE19833321132 DE 19833321132 DE 3321132 A DE3321132 A DE 3321132A DE 3321132 A1 DE3321132 A1 DE 3321132A1
- Authority
- DE
- Germany
- Prior art keywords
- coil
- strips
- coil arrangement
- arrangement according
- flux
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
Landscapes
- Near-Field Transmission Systems (AREA)
- Coils Of Transformers For General Uses (AREA)
- Burglar Alarm Systems (AREA)
- Magnetic Treatment Devices (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/386,886 US4486731A (en) | 1982-06-10 | 1982-06-10 | Coil assembly with flux directing means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3321132A1 true DE3321132A1 (de) | 1983-12-15 |
| DE3321132C2 DE3321132C2 (US20020095090A1-20020718-M00002.png) | 1993-01-28 |
Family
ID=23527479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19833321132 Granted DE3321132A1 (de) | 1982-06-10 | 1983-06-10 | Spulenanordnung |
Country Status (13)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659990A (en) * | 1983-05-10 | 1987-04-21 | Magnaflux Corporation | Eddy current test system including a member of high permeability material effective to concentrate flux in a very small region of a part |
| US4745401A (en) * | 1985-09-09 | 1988-05-17 | Minnesota Mining And Manufacturing Company | RF reactivatable marker for electronic article surveillance system |
| US4736196A (en) * | 1986-11-18 | 1988-04-05 | Cost-Effective Monitoring Systems, Co. | Electronic monitoring system |
| WO1989007347A1 (en) * | 1988-02-04 | 1989-08-10 | Uniscan Ltd. | Magnetic field concentrator |
| WO1996038877A1 (en) * | 1995-05-30 | 1996-12-05 | Sensormatic Electronics Corporation | Eas system antenna configuration for providing improved interrogation field distribution |
| TW531976B (en) * | 2001-01-11 | 2003-05-11 | Hanex Co Ltd | Communication apparatus and installing structure, manufacturing method and communication method |
| DE10149126A1 (de) * | 2001-10-05 | 2003-04-10 | Flexchip Ag | Einrichtung zum Abschirmen eines Transponders, Verfahren zum Herstellen einer entsprechenden Abschirmung, sowie Transponder mit Abschirmung |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2329634A (en) * | 1939-10-06 | 1943-09-14 | Jr Eugene F Mcdonald | Radio apparatus |
| GB552778A (en) * | 1940-11-29 | 1943-04-23 | British Thomson Houston Co Ltd | Improvements in and relating to electric induction apparatus |
| US2669528A (en) * | 1950-05-11 | 1954-02-16 | Avco Mfg Corp | Process of increasing the inductance of a loop antenna |
| GB755756A (en) * | 1953-03-17 | 1956-08-29 | Philips Nv | Improvements in or relating to radio receivers |
| GB872050A (en) * | 1957-01-19 | 1961-07-05 | Emi Ltd | Improvements in or relating to inductances suitable for use in electrical circuits having conductors adhering to insulating supports |
| NL130506C (US20020095090A1-20020718-M00002.png) * | 1959-02-27 | |||
| DE1282744B (de) * | 1965-07-02 | 1968-11-14 | Csf | Empfangs-Rahmenantenne |
| US3448440A (en) * | 1965-12-17 | 1969-06-03 | Wiegand Electronics Co Inc | Interceptor transformer proximity key |
| GB1128885A (en) * | 1966-02-24 | 1968-10-02 | Matsushita Electric Ind Co Ltd | Improvements in and relating to high frequency apparatus |
| US3778836A (en) * | 1966-12-27 | 1973-12-11 | T Tanaka | Magnetic antenna having a block or circuit components therein |
| US3624311A (en) * | 1969-01-16 | 1971-11-30 | Advance Data Systems Corp | Card handler having rotatable magnetic head and card-clamping means carried by housing assembly |
| US3521280A (en) * | 1969-01-16 | 1970-07-21 | Gen Res Corp | Coded labels |
| GB1307985A (en) * | 1969-04-18 | 1973-02-21 | Sybrook Electronics Ltd | Inductive transducers |
| US3823403A (en) * | 1971-06-09 | 1974-07-09 | Univ Ohio State Res Found | Multiturn loop antenna |
| JPS54128653A (en) * | 1978-03-30 | 1979-10-05 | Nippon Gakki Seizo Kk | Antenna unit for receiver |
-
1982
- 1982-06-10 US US06/386,886 patent/US4486731A/en not_active Expired - Lifetime
-
1983
- 1983-05-18 GB GB08313752A patent/GB2121652B/en not_active Expired
- 1983-06-08 CA CA000429967A patent/CA1210828A/en not_active Expired
- 1983-06-09 SE SE8303257A patent/SE8303257L/ not_active Application Discontinuation
- 1983-06-09 NL NL8302053A patent/NL8302053A/nl not_active Application Discontinuation
- 1983-06-09 ES ES523112A patent/ES523112A0/es active Granted
- 1983-06-09 IT IT09448/83A patent/IT1198620B/it active
- 1983-06-09 IT IT1983A09448A patent/IT8309448A1/it unknown
- 1983-06-09 BE BE0/210972A patent/BE897015A/fr not_active IP Right Cessation
- 1983-06-09 MX MX197606A patent/MX152757A/es unknown
- 1983-06-09 BR BR8303072A patent/BR8303072A/pt unknown
- 1983-06-10 DE DE19833321132 patent/DE3321132A1/de active Granted
- 1983-06-10 FR FR8309697A patent/FR2528644B1/fr not_active Expired
- 1983-06-10 JP JP58103010A patent/JPS593905A/ja active Pending
Non-Patent Citations (1)
| Title |
|---|
| In Betracht bezogene ältere Anmeldung: P 33 12 680.1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1210828A (en) | 1986-09-02 |
| SE8303257D0 (sv) | 1983-06-09 |
| JPS593905A (ja) | 1984-01-10 |
| ES8405191A1 (es) | 1984-05-16 |
| GB2121652B (en) | 1986-03-26 |
| FR2528644B1 (fr) | 1987-11-20 |
| BR8303072A (pt) | 1984-01-31 |
| GB2121652A (en) | 1983-12-21 |
| FR2528644A1 (fr) | 1983-12-16 |
| DE3321132C2 (US20020095090A1-20020718-M00002.png) | 1993-01-28 |
| SE8303257L (sv) | 1983-12-11 |
| GB8313752D0 (en) | 1983-06-22 |
| MX152757A (es) | 1985-11-07 |
| ES523112A0 (es) | 1984-05-16 |
| NL8302053A (nl) | 1984-01-02 |
| IT1198620B (it) | 1988-12-21 |
| BE897015A (fr) | 1983-10-03 |
| IT8309448A1 (it) | 1984-12-09 |
| US4486731A (en) | 1984-12-04 |
| IT8309448A0 (it) | 1983-06-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |