CA2068521C - Antenne plate alimentee en extremite - Google Patents
Antenne plate alimentee en extremite Download PDFInfo
- Publication number
- CA2068521C CA2068521C CA002068521A CA2068521A CA2068521C CA 2068521 C CA2068521 C CA 2068521C CA 002068521 A CA002068521 A CA 002068521A CA 2068521 A CA2068521 A CA 2068521A CA 2068521 C CA2068521 C CA 2068521C
- Authority
- CA
- Canada
- Prior art keywords
- antenna
- adjacent
- elements
- opposite
- lambda
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/0672—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with resonating marks
- G06K19/0675—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with resonating marks the resonating marks being of the surface acoustic wave [SAW] kind
-
- 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
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
- G06K7/086—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing passive circuit, e.g. resonant circuit transponders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Support Of Aerials (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43423389A | 1989-11-13 | 1989-11-13 | |
US434,233 | 1989-11-13 | ||
PCT/US1990/006614 WO1991007785A1 (fr) | 1989-11-13 | 1990-11-13 | Antenne plate alimentee depuis l'extremite |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2068521A1 CA2068521A1 (fr) | 1991-05-14 |
CA2068521C true CA2068521C (fr) | 2000-01-18 |
Family
ID=23723388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002068521A Expired - Lifetime CA2068521C (fr) | 1989-11-13 | 1990-11-13 | Antenne plate alimentee en extremite |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0514378A4 (fr) |
CA (1) | CA2068521C (fr) |
WO (1) | WO1991007785A1 (fr) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE623608C (fr) * | 1933-11-21 | 1900-01-01 | ||
US3689929A (en) * | 1970-11-23 | 1972-09-05 | Howard B Moody | Antenna structure |
US4138681A (en) * | 1977-08-29 | 1979-02-06 | Motorola, Inc. | Portable radio antenna |
US4259673A (en) * | 1979-06-05 | 1981-03-31 | Harold Guretzky | Stub matched antenna and method of feeding same |
JPS56160102A (en) * | 1980-05-13 | 1981-12-09 | Koki Tanaka | Folded antenna using coaxial line |
US4642640A (en) * | 1983-04-25 | 1987-02-10 | Sensormatic Electronics Corporation | Signal receptor-reradiator and surveillance tag using the same |
US4737789A (en) * | 1986-12-02 | 1988-04-12 | X Cyte, Inc. | Inductive antenna coupling for a surface acoustic wave transponder |
US4800392A (en) * | 1987-01-08 | 1989-01-24 | Motorola, Inc. | Integral laminar antenna and radio housing |
-
1990
- 1990-11-13 WO PCT/US1990/006614 patent/WO1991007785A1/fr not_active Application Discontinuation
- 1990-11-13 CA CA002068521A patent/CA2068521C/fr not_active Expired - Lifetime
- 1990-11-13 EP EP19910900117 patent/EP0514378A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0514378A4 (en) | 1993-02-24 |
EP0514378A1 (fr) | 1992-11-25 |
CA2068521A1 (fr) | 1991-05-14 |
WO1991007785A1 (fr) | 1991-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5182570A (en) | End fed flat antenna | |
US4951057A (en) | Inductive input/output coupling for a surface acoustic wave device | |
US6320509B1 (en) | Radio frequency identification transponder having a high gain antenna configuration | |
US6441740B1 (en) | Radio frequency identification transponder having a reflector | |
US6366260B1 (en) | RFID tag employing hollowed monopole antenna | |
EP0344885B1 (fr) | Antenne réfléchissante | |
US7518558B2 (en) | Wireless IC device | |
US6281794B1 (en) | Radio frequency transponder with improved read distance | |
US7561107B2 (en) | RFID device with microstrip antennas | |
US5280286A (en) | Surveillance and identification system antennas | |
EP1467314A1 (fr) | Etiquette d'identification radiofréquence comprenant une batterie et une antenna partageant des élements communs | |
EP1895620B1 (fr) | Antenne d étiquette rfid et étiquette rfid | |
US20070001810A1 (en) | Tags, wireless communication systems, tag communication methods, and wireless communications methods | |
US20080143620A1 (en) | Increasing the bandwidth of a RFID dipole tag | |
US8864039B2 (en) | Transponder tagged object and method for manufacturing a transponder tagged object | |
US7049966B2 (en) | Flat antenna architecture for use in radio frequency monitoring systems | |
JP2009049655A (ja) | Rfidタグ用の補助アンテナ及びその取付方法 | |
CA2068521C (fr) | Antenne plate alimentee en extremite | |
KR100815077B1 (ko) | 고이득 안테나 형태의 알에프아이디 태그 | |
KR100409047B1 (ko) | 장거리 인식을 위한 원격 인식 시스템을 내장한 신용카드형 트랜스폰더 | |
KR100951138B1 (ko) | 초소형 광대역 rfid 태그 안테나 | |
FI130267B (en) | UHF RFID tag | |
JP4688726B2 (ja) | 無接触形icタグのリーダライタ用アンテナ | |
KR101206088B1 (ko) | Rfid 태그 | |
KR100862477B1 (ko) | Rfid 태그 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKEC | Expiry (correction) |
Effective date: 20121202 |