CA1233540A - Systeme electronique a antennes basses pour la surveillance d'objets - Google Patents
Systeme electronique a antennes basses pour la surveillance d'objetsInfo
- Publication number
- CA1233540A CA1233540A CA000459813A CA459813A CA1233540A CA 1233540 A CA1233540 A CA 1233540A CA 000459813 A CA000459813 A CA 000459813A CA 459813 A CA459813 A CA 459813A CA 1233540 A CA1233540 A CA 1233540A
- Authority
- CA
- Canada
- Prior art keywords
- patch
- ground plane
- antenna
- transmitter
- patches
- 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
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
- G08B13/2422—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using acoustic or microwave tags
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
- G08B13/2468—Antenna in system and the related signal processing
- G08B13/2471—Antenna signal processing by receiver or emitter
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
- G08B13/2468—Antenna in system and the related signal processing
- G08B13/2474—Antenna or antenna activator geometry, arrangement or layout
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Burglar Alarm Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US51939583A | 1983-08-01 | 1983-08-01 | |
US519,395 | 1983-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1233540A true CA1233540A (fr) | 1988-03-01 |
Family
ID=24068144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000459813A Expired CA1233540A (fr) | 1983-08-01 | 1984-07-26 | Systeme electronique a antennes basses pour la surveillance d'objets |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0135049B1 (fr) |
JP (1) | JPS60100071A (fr) |
AR (1) | AR241390A1 (fr) |
AT (1) | ATE35063T1 (fr) |
AU (1) | AU573749B2 (fr) |
BR (1) | BR8403774A (fr) |
CA (1) | CA1233540A (fr) |
DE (1) | DE3472019D1 (fr) |
NZ (1) | NZ209068A (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4647910A (en) * | 1985-09-17 | 1987-03-03 | Allied Corporation | Selector for AC magnetic inductive field receiver coils |
DE4436975B4 (de) * | 1994-10-15 | 2007-10-25 | Meto International Gmbh | Verfahren zur elektronischen Artikelüberwachung |
US7127255B2 (en) | 2002-10-01 | 2006-10-24 | Trango Systems, Inc. | Wireless point to multipoint system |
EP1671264A1 (fr) * | 2003-09-29 | 2006-06-21 | Koninklijke Philips Electronics N.V. | Systeme, station, dispositif et procede permettant l'obtention de grandeurs |
JP2006020083A (ja) * | 2004-07-01 | 2006-01-19 | Omron Corp | タグ通信用アンテナ、タグ通信装置、タグ通信システム、タグ通信装置のスキャン調整方法、およびスキャン調整プログラム |
EP1684247A1 (fr) * | 2005-01-20 | 2006-07-26 | Inventio Ag | Sécurité contre le vol de marchandises, procédé destiné à l'installation d'une telle sécurité contre le vol de marchandises et procédé pour la protection de marchandises contre le vol |
US7576655B2 (en) | 2005-03-29 | 2009-08-18 | Accu-Sort Systems, Inc. | RFID conveyor system and method |
US8854212B2 (en) | 2009-03-30 | 2014-10-07 | Datalogic Automation, Inc. | Radio frequency identification tag identification system |
US10367259B2 (en) | 2017-01-12 | 2019-07-30 | Arris Enterprises Llc | Antenna with enhanced azimuth gain |
CN115275643A (zh) * | 2022-08-29 | 2022-11-01 | 重庆大学 | 一种具有可定制波束倾角的微带天线及其设计方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO126975B (fr) * | 1967-03-30 | 1973-04-16 | John Welsh | |
US3680136A (en) * | 1971-10-20 | 1972-07-25 | Us Navy | Current sheet antenna |
US3895368A (en) * | 1972-08-09 | 1975-07-15 | Sensormatic Electronics Corp | Surveillance system and method utilizing both electrostatic and electromagnetic fields |
US4366484A (en) * | 1978-12-29 | 1982-12-28 | Ball Corporation | Temperature compensated radio frequency antenna and methods related thereto |
US4386357A (en) * | 1981-05-21 | 1983-05-31 | Martin Marietta Corporation | Patch antenna having tuning means for improved performance |
-
1984
- 1984-07-20 AT AT84108629T patent/ATE35063T1/de not_active IP Right Cessation
- 1984-07-20 DE DE8484108629T patent/DE3472019D1/de not_active Expired
- 1984-07-20 EP EP84108629A patent/EP0135049B1/fr not_active Expired
- 1984-07-26 CA CA000459813A patent/CA1233540A/fr not_active Expired
- 1984-07-27 AU AU31219/84A patent/AU573749B2/en not_active Ceased
- 1984-07-30 BR BR8403774A patent/BR8403774A/pt unknown
- 1984-07-31 NZ NZ209068A patent/NZ209068A/en unknown
- 1984-07-31 JP JP59161505A patent/JPS60100071A/ja active Pending
- 1984-08-01 AR AR84297424A patent/AR241390A1/es active
Also Published As
Publication number | Publication date |
---|---|
AU573749B2 (en) | 1988-06-23 |
BR8403774A (pt) | 1985-07-02 |
AU3121984A (en) | 1985-02-07 |
DE3472019D1 (en) | 1988-07-14 |
EP0135049B1 (fr) | 1988-06-08 |
EP0135049A1 (fr) | 1985-03-27 |
NZ209068A (en) | 1988-03-30 |
JPS60100071A (ja) | 1985-06-03 |
AR241390A1 (es) | 1992-06-30 |
ATE35063T1 (de) | 1988-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |