HK1001909A1 - Antenna structure for providing a uniform field - Google Patents
Antenna structure for providing a uniform fieldInfo
- Publication number
- HK1001909A1 HK1001909A1 HK98100887A HK98100887A HK1001909A1 HK 1001909 A1 HK1001909 A1 HK 1001909A1 HK 98100887 A HK98100887 A HK 98100887A HK 98100887 A HK98100887 A HK 98100887A HK 1001909 A1 HK1001909 A1 HK 1001909A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- providing
- antenna structure
- uniform field
- reactance
- discloses
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10336—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
-
- 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
- H01Q7/005—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 variable reactance for tuning the antenna
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H5/00—One-port networks comprising only passive electrical elements as network components
- H03H5/02—One-port networks comprising only passive electrical elements as network components without voltage- or current-dependent elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/24—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Networks Using Active Elements (AREA)
- Near-Field Transmission Systems (AREA)
- Details Of Aerials (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Waveguide Aerials (AREA)
- Support Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Control Of Electrical Variables (AREA)
- Filters And Equalizers (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPI585587 | 1987-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1001909A1 true HK1001909A1 (en) | 1998-07-17 |
Family
ID=3772638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98100887A HK1001909A1 (en) | 1987-12-10 | 1998-02-05 | Antenna structure for providing a uniform field |
Country Status (9)
Country | Link |
---|---|
EP (2) | EP0608966B1 (xx) |
JP (1) | JPH03502269A (xx) |
AT (2) | ATE178438T1 (xx) |
CA (1) | CA1336341C (xx) |
DE (2) | DE3854051T2 (xx) |
HK (1) | HK1001909A1 (xx) |
SG (1) | SG49628A1 (xx) |
WO (1) | WO1989005530A1 (xx) |
ZA (1) | ZA889254B (xx) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0156300B1 (ko) * | 1995-04-11 | 1998-11-16 | 손일호 | 전방향성 루프안테나 |
FR2733095B1 (fr) * | 1995-04-11 | 1997-05-09 | Alcatel Converters | Dispositif a inductance variable et utilisation de ce dispositif pour la realisation d'une source de courant pour cellule de commutation a tension nulle |
JPH08336338A (ja) * | 1995-06-13 | 1996-12-24 | Chikusanyo Denshi Gijutsu Kenkyu Kumiai | 家畜等の個体識別装置 |
JP3528367B2 (ja) * | 1995-09-30 | 2004-05-17 | ソニーケミカル株式会社 | リーダ・ライタ用アンテナ |
AUPP254698A0 (en) * | 1998-03-23 | 1998-04-23 | Magellan Technology Pty Limited | An interrogator for interrogating an rfid transponder |
DE19951561A1 (de) * | 1999-10-27 | 2001-05-03 | Meto International Gmbh | Sicherungselement für die elektronischen Artikelsicherung |
DE10011500A1 (de) * | 2000-03-09 | 2001-09-13 | Abb Research Ltd | Wicklung und System zur Erzeugung eines magnetischen Feldes |
DE10320188A1 (de) * | 2003-05-07 | 2004-12-02 | Abb Research Ltd. | Magnetfelderzeugungssystem |
JP2006020207A (ja) * | 2004-07-05 | 2006-01-19 | Nec Infrontia Corp | アンテナ装置 |
JP4553361B2 (ja) * | 2005-01-17 | 2010-09-29 | セントラルエンジニアリング株式会社 | アンテナ装置、アンテナ駆動方法およびidタグ読取装置 |
JP4634166B2 (ja) * | 2005-02-03 | 2011-02-16 | 株式会社東海理化電機製作所 | アンテナ装置及びそれを備えた携帯機 |
US7545272B2 (en) | 2005-02-08 | 2009-06-09 | Therasense, Inc. | RF tag on test strips, test strip vials and boxes |
JP4938016B2 (ja) * | 2005-09-12 | 2012-05-23 | マゼラン テクノロジー ピーティーワイ.エルティーディー. | データを伝送するように適応された方法および装置 |
NZ566979A (en) | 2005-09-20 | 2011-01-28 | Allflex Australia Pty Ltd | Animal portal with coil wound around and horizontal radiator elements to each side |
DE102006029717A1 (de) * | 2006-06-28 | 2008-01-03 | Siemens Audiologische Technik Gmbh | Hörvorrichtung mit orthogonal zueinander angeordneten Spulen |
DE102008008899A1 (de) * | 2008-02-13 | 2009-08-27 | Siemens Medical Instruments Pte. Ltd. | Ladegerät mit homogenem Magnetfeld |
WO2009122355A2 (en) * | 2008-04-03 | 2009-10-08 | Philips Intellectual Property & Standards Gmbh | Wireless power transmission system |
DE102008036093A1 (de) * | 2008-08-04 | 2010-02-11 | Ralf Bux | Vorrichtung zum automatischen Erkennen und/oder Lesen bzw. Speichern von Daten |
JP5569011B2 (ja) * | 2010-01-29 | 2014-08-13 | 大日本印刷株式会社 | アンテナ部品 |
US9070969B2 (en) | 2010-07-06 | 2015-06-30 | Apple Inc. | Tunable antenna systems |
US9166279B2 (en) | 2011-03-07 | 2015-10-20 | Apple Inc. | Tunable antenna system with receiver diversity |
US9246221B2 (en) * | 2011-03-07 | 2016-01-26 | Apple Inc. | Tunable loop antennas |
US9350069B2 (en) | 2012-01-04 | 2016-05-24 | Apple Inc. | Antenna with switchable inductor low-band tuning |
US9190712B2 (en) | 2012-02-03 | 2015-11-17 | Apple Inc. | Tunable antenna system |
ITMI20121049A1 (it) * | 2012-06-18 | 2013-12-19 | Ab Medica Spa | Gabbia per cavie da laboratorio e metodo per l¿alimentazione senza fili di un dispositivo bioelettronico impiantato in una cavia |
JP6152716B2 (ja) * | 2012-08-27 | 2017-06-28 | Tdk株式会社 | アンテナ装置 |
JPWO2015163296A1 (ja) * | 2014-04-24 | 2017-04-20 | 株式会社村田製作所 | ワイヤレス給電システム |
US20220157512A1 (en) * | 2020-11-13 | 2022-05-19 | Cyntec Co., Ltd. | Structure for forming a 3d-coil transponder |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB449240A (en) * | 1933-10-23 | 1936-06-15 | Leon Ladislas De Kramolin | Method of regulating radio sets and the like |
US3631534A (en) * | 1969-09-05 | 1971-12-28 | Matsushita Electric Ind Co Ltd | Variable inductance device |
FR2076468A5 (xx) * | 1970-01-14 | 1971-10-15 | Ancet Victor | |
US3689885A (en) * | 1970-09-15 | 1972-09-05 | Transitag Corp | Inductively coupled passive responder and interrogator unit having multidimension electromagnetic field capabilities |
US3832530A (en) * | 1972-01-04 | 1974-08-27 | Westinghouse Electric Corp | Object identifying apparatus |
US3990065A (en) * | 1975-02-20 | 1976-11-02 | The Magnavox Company | Theft detection system |
US4307331A (en) * | 1978-09-15 | 1981-12-22 | Westinghouse Electric Corp. | Hybrid switched-capacitor controlled-inductor static VAR generator and control apparatus |
US4210860A (en) * | 1978-09-15 | 1980-07-01 | Westinghouse Electric Corp. | VAR Generator with current sensitive inductance break point |
US4539558A (en) * | 1981-11-24 | 1985-09-03 | Shin International, Inc. | Antitheft system |
GB2121248B (en) * | 1982-05-18 | 1986-03-05 | Gen Electric | Capacitive voltage dropper |
US4623877A (en) * | 1983-06-30 | 1986-11-18 | Knogo Corporation | Method and apparatus for detection of targets in an interrogation zone |
US4634975A (en) * | 1984-09-17 | 1987-01-06 | Progressive Dynamics, Inc. | Method and apparatus for producing electromagnetic surveillance fields |
SE451166C (sv) * | 1986-01-21 | 1990-12-10 | Intermodulation & Safety Syst | Mottagaranordning foer att detektera naervaro av en indikeringsanordning i en begraensad undersoekningszon |
-
1988
- 1988-12-09 ZA ZA889254A patent/ZA889254B/xx unknown
- 1988-12-12 AT AT94200836T patent/ATE178438T1/de not_active IP Right Cessation
- 1988-12-12 WO PCT/AU1988/000476 patent/WO1989005530A1/en active IP Right Grant
- 1988-12-12 AT AT89900176T patent/ATE124175T1/de active
- 1988-12-12 CA CA000585702A patent/CA1336341C/en not_active Expired - Fee Related
- 1988-12-12 DE DE3854051T patent/DE3854051T2/de not_active Expired - Lifetime
- 1988-12-12 DE DE3856320T patent/DE3856320T2/de not_active Expired - Lifetime
- 1988-12-12 EP EP94200836A patent/EP0608966B1/en not_active Expired - Lifetime
- 1988-12-12 JP JP1500278A patent/JPH03502269A/ja active Pending
- 1988-12-12 SG SG1996001721A patent/SG49628A1/en unknown
- 1988-12-12 EP EP89900176A patent/EP0393103B1/en not_active Expired - Lifetime
-
1998
- 1998-02-05 HK HK98100887A patent/HK1001909A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0608966B1 (en) | 1999-03-31 |
DE3856320D1 (de) | 1999-05-06 |
CA1336341C (en) | 1995-07-18 |
AU635198B2 (en) | 1993-03-18 |
EP0393103A4 (en) | 1992-01-15 |
EP0393103B1 (en) | 1995-06-21 |
AU2801389A (en) | 1989-07-05 |
WO1989005530A1 (en) | 1989-06-15 |
DE3854051T2 (de) | 1995-11-02 |
DE3856320T2 (de) | 1999-12-02 |
JPH03502269A (ja) | 1991-05-23 |
EP0608966A2 (en) | 1994-08-03 |
ZA889254B (en) | 1990-08-29 |
ATE178438T1 (de) | 1999-04-15 |
EP0608966A3 (en) | 1994-08-31 |
ATE124175T1 (de) | 1995-07-15 |
DE3854051D1 (de) | 1995-07-27 |
EP0393103A1 (en) | 1990-10-24 |
SG49628A1 (en) | 1998-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |