|
The ornamental design for a broken-loop RFID reader antenna for near field and far field UHF RFID tags, as shown.
|
|||||||||||||||||
An article in which the design is embodied is an antenna for a Radio Frequency Identification (RFID) reader system, as it would be used for reading Ultra High Frequency (UHF) RFID tags.
The design includes one or more conductive loops, at least one of which is broken into segments. The segments can be electrically driven at feedpoints by an electrical signal alternating at the proper frequency, which can be around 900 MHz.
In the far field, an electromagnetic pattern is formed that is equivalent to, and sometimes indistinguishable from, that of a dipole. This way RFID tags can be read as known.
In the near field, each segment generates an individual magnetic field. Plus, the segments are so arranged that the individual magnetic fields are cumulated, to form an aggregate magnetic field that can be used for reading the UHF RFID tags. The magnetic field can read RFID tags better than an electromagnetic field, in some instances that involve fluids or metals with which the RFID tags can be associated.
Advantageously, the segments of the broken loop(s) are further arranged so that not all of them need be electrically driven. Only some need be driven; and the driving field couples also into the others. By proper geometry, dimensioning, and the like, the phase difference of each field propagating within a segment can be substantially matched to that of coupling to another segment, so that the generated individual magnetic fields are cumulated.
The FIGURE is a top plan view of a broken-loop RFID reader antenna for near field and far field UHF RFID tags showing my new design. It is understood that the broken line segments in the drawing form no part of the claimed design.
| Patent | Priority | Assignee | Title |
| 10152691, | Mar 06 2012 | A-1 PACKAGING SOLUTIONS, INC. | Radio frequency identification system for tracking and managing materials in a manufacturing process |
| 11023851, | Mar 30 2018 | A-1 PACKAGING SOLUTIONS, INC | RFID-based inventory tracking system |
| 11348067, | Mar 30 2018 | A-1 PACKAGING SOLUTIONS, INC. | RFID-based inventory tracking system |
| 11443158, | Apr 22 2019 | A-1 PACKAGING SOLUTIONS, INC. | Easily attachable RFID tag and method of making the same |
| 11755874, | Mar 03 2021 | SENSORMATIC ELECTRONICS, LLC | Methods and systems for heat applied sensor tag |
| 11769026, | Nov 27 2019 | SENSORMATIC ELECTRONICS, LLC | Flexible water-resistant sensor tag |
| 11823127, | Mar 30 2018 | A-1 PACKAGING SOLUTIONS, INC. | RFID-based inventory tracking system |
| 11861440, | Sep 18 2019 | SENSORMATIC ELECTRONICS, LLC | Systems and methods for providing tags adapted to be incorporated with or in items |
| 11869324, | Dec 23 2021 | SENSORMATIC ELECTRONICS, LLC | Securing a security tag into an article |
| 8690057, | Mar 06 2012 | A-I Packaging Solutions, Inc. | Radio frequency identification system for tracking and managing materials in a manufacturing process |
| 9224125, | Mar 06 2012 | A-1 PACKAGING SOLUTIONS, INC. | Radio frequency identification system for tracking and managing materials in a manufacturing process |
| 9489650, | Mar 06 2012 | A-1 PACKAGING SOLUTIONS, INC. | Radio frequency identification system for tracking and managing materials in a manufacturing process |
| 9754239, | Mar 06 2012 | A-1 PACKAGING SOLUTIONS, INC. | Radio frequency identification system for tracking and managing materials in a manufacturing process |
| D630196, | Aug 04 2010 | Tagsys SAS | Antenna |
| D653654, | Nov 16 2011 | CommScope Technologies LLC | 8-sided flat panel array antenna |
| D654910, | Nov 16 2011 | CommScope Technologies LLC | 10-sided flat panel array antenna |
| D655278, | Nov 16 2011 | CommScope Technologies LLC | 12-sided flat panel array antenna |
| D754861, | Oct 07 2014 | TWENTY TWENTY THERAPEUTICS LLC | Contact lens antenna |
| D788200, | Feb 28 2014 | Johnson & Johnson Vision Care, Inc.; Johnson & Johnson Vision Care, Inc | Contact lens with optical effect |
| D788830, | Feb 28 2014 | Johnson & Johnson Vision Care, Inc.; Johnson & Johnson Vision Care, Inc | Contact lens with optical effect |
| D789433, | Feb 28 2014 | Johnson & Johnson Vision Care, Inc.; Johnson & Johnson Vision Care, Inc | Contact lens with optical effect |
| D796048, | Oct 07 2014 | TWENTY TWENTY THERAPEUTICS LLC | Contact lens antenna |
| D822010, | Feb 26 2016 | BYTE FOODS, INC | RFID tag antenna |
| Patent | Priority | Assignee | Title |
| 2617033, | |||
| 5973644, | Jul 12 1996 | HARADA INDUSTRY CO , LTD | Planar antenna |
| 6445354, | Aug 16 1999 | NOVATEL INC | Aperture coupled slot array antenna |
| 6961023, | Dec 26 2002 | TOYODA GOSEI CO , LTD | Wave-transmitting cover, and method for producing it |
| 7079080, | May 24 2004 | Mitsubishi Denki Kabushiki Kaisha | Circularly polarized antenna and rectenna using this antenna |
| 7106201, | Aug 20 1997 | Round Rock Research, LLC | Communication devices, remote intelligent communication devices, electronic communication devices, methods of forming remote intelligent communication devices and methods of forming a radio frequency identification device |
| 7205947, | Aug 19 2004 | Harris Corporation | Litzendraht loop antenna and associated methods |
| 20020067315, | |||
| 20040125023, | |||
| 20050259030, | |||
| D546820, | Feb 17 2006 | IMPINJ, INC | Radio frequency identification tag antenna assembly |
| D547306, | Sep 21 2006 | Impinj, Inc. | RFID antenna |
| D548225, | Feb 17 2006 | IMPINJ, INC | Radio frequency identification tag antenna assembly |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 23 2007 | OLIVER, RONALD A | IMPINJ, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 020506 | /0705 | |
| Feb 14 2008 | Impinj, Inc. | (assignment on the face of the patent) | / |
| Date | Maintenance Fee Events |
| Date | Maintenance Schedule |