WO2023041258A1 - Antenne pour communication en champ proche, appareil de commande et luminaire à diodes électroluminescentes - Google Patents

Antenne pour communication en champ proche, appareil de commande et luminaire à diodes électroluminescentes Download PDF

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Publication number
WO2023041258A1
WO2023041258A1 PCT/EP2022/072427 EP2022072427W WO2023041258A1 WO 2023041258 A1 WO2023041258 A1 WO 2023041258A1 EP 2022072427 W EP2022072427 W EP 2022072427W WO 2023041258 A1 WO2023041258 A1 WO 2023041258A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
coils
driving apparatus
light emitting
emitting diode
Prior art date
Application number
PCT/EP2022/072427
Other languages
English (en)
Inventor
Daniele Luccato
Giancarlo Pellizzari
Brant KANG
Billy YE
Liu Liu
Original Assignee
Osram Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Osram Gmbh filed Critical Osram Gmbh
Publication of WO2023041258A1 publication Critical patent/WO2023041258A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H04B5/263—Multiple coils at either side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/43—Antennas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0435—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by remote control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission

Definitions

  • the present disclosure relates to an antenna for Near Field Communication (NFC), a driving apparatus including the antenna, and a light emitting diode (LED) luminaire including the driving apparatus.
  • NFC Near Field Communication
  • LED light emitting diode
  • Am NFC antenna is a core component of an NFC device, which largely determines the communication performance of the NFC device.
  • the present disclosure designs a high-performance NFC antenna with high coupling performance in multiple directions and positions.
  • the high-performance NFC antenna according to the present disclosure is particularly suitable for a driving apparatus of a LED luminaire, which makes it more convenient for the driving apparatus of the LED luminaire to communicate with external devices such as mobile phones in the near field, for example, to realize in-field programming of the driving apparatus.
  • an antenna for NFC comprising a pillar support and a winding wire, wherein the winding wire is wound on the side surface of the pillar support to form a plurality of coils; the plurality of coils are electrically connected in series or in parallel; and adjacent coils among the plurality of coils are spaced apart from each other by a predetermined distance.
  • the pillar support is a cylinder or a prism.
  • the pillar support is a plastic hollow column.
  • the number of the plurality of coils is two or three.
  • a driving apparatus for a LED luminaire comprising: a printed circuit board; a driver chip, mounted on the printed circuit board for driving LED(s) of the LED luminaire; and an antenna according to an embodiment of the present disclosure, wherein the antenna is electrically connected to the driver chip, which is for the driver chip to communicate information with an external device through NFC, and the antenna is mounted on the printed circuit board through its pillar support.
  • the driver chip is an in-field programmable driver chip, which receives programming codes from the external device through the antenna.
  • the pillar support of the antenna is vertically mounted on the printed circuit board.
  • a LED luminaire comprising a LED module comprising one or more LEDs; and a driving apparatus according to an embodiment of the present disclosure for driving the LED module.
  • FIG. 1 A and FIG. IB show schematic diagrams of the coupling performance of an NFC antenna based on a printed circuit board
  • FIG. 2 shows a schematic structural diagram of an NFC antenna according to an embodiment of the present disclosure
  • FIG. 3A-3D show schematic diagrams of the coupling performance of an NFC antenna according to an embodiment of the present disclosure
  • FIG. 4 shows a schematic diagram of the coupling performance of an NFC antenna with one coil
  • FIG. 5 shows a schematic structural diagram of an NFC antenna according to another embodiment of the present disclosure
  • FIG. 6 shows a schematic structural diagram of an NFC antenna according to another embodiment of the present disclosure.
  • FIG. 7 shows a schematic structural diagram of a LED luminaire and its driving apparatus, according to an embodiment of the present disclosure.
  • NFC is widely used in various fields, and designing a high-performance NFC antenna is pursuit of the person of skill in the art.
  • the inventors of the present disclosure have discovered in research that for some applications, a NFC device needs to be able to interact with the counterpart NFC device of NFC from different directions and/or positions.
  • a LED luminaire has a driving apparatus such as a Programmable Switch Unit (PSU) for powering and controlling LED modules with one or more LEDs. It is desirable for the driving apparatus to be able to be set with driving parameters, be programmed in the field, or collect other data through an external portable device such as a mobile phone.
  • PSU Programmable Switch Unit
  • an NFC antenna can be set in the driving apparatus to use NFC for data transmission. NFC can easily send data to the driving apparatus by a portable device near the driver.
  • an NFC antenna of a driving apparatus usually needs to be set in the housing of the driving apparatus.
  • the housing of the driving apparatus often includes metal parts, which have an impact on NFC. Therefore, it is needed to design an NFC antenna that can have high coupling efficiency in different directions and/or positions, so that communication can be carried out from other positions or directions when certain parts of the driving apparatus are shielded by the metal housing.
  • the directions and positions in which the portable device can easily access the NFC antenna are also different under different installation methods or positions. Therefore, it is desirable to design an NFC antenna that can have high coupling efficiency in multiple directions and/or locations.
  • FIG. 1A and FIG. IB respectively show schematic diagrams of the coupling performance of the planar antenna on the PCB in the perpendicular direction and the parallel direction.
  • antenna 101 is a planar antenna formed by printed wires on PCB 100, and antenna 102 which can be the same PCB antenna as antenna 101 or other similar antennas, such as other planar antennas generally used in portable devices, is the counterpart antenna for NFC with antenna 101.
  • antenna 101 and antenna 102 are placed in parallel.
  • the central magnetic lines of force emitted by antenna 102 is perpendicular to antenna 101, so that they can pass through antenna 101 well, as shown by the dashed line M in FIG. 1A.
  • the magnetic lines of force emitted by antenna 101 can also pass through antenna 102 well, such that the coupling efficiency between them is relatively high.
  • FIG. 1A antenna 101 and antenna 102 are placed in parallel.
  • the central magnetic lines of force emitted by antenna 102 is perpendicular to antenna 101, so that they can pass through antenna 101 well, as shown by the dashed line M in FIG. 1A.
  • the magnetic lines of force emitted by antenna 101 can also pass through antenna 102 well, such that the coupling efficiency between
  • antenna 101 and antenna 102 are placed perpendicularly, and antenna 101 is substantially aligned with the center of antenna 102.
  • the central magnetic lines of force emitted by antenna 102 is parallel to antenna 101 and can hardly pass through antenna 101, as shown by dashed line M in FIG. IB.
  • the edge magnetic lines of force emitted by antenna 102 is bent outwardly and can hardly pass through antenna 101 either, so that low coupling efficiency exists between them and cannot meet the communication requirements.
  • an NFC antenna i.e., an antenna for NFC
  • an NFC antenna capable of achieving high coupling efficiency in different directions and positions.
  • FIG. 2 shows a schematic structural diagram of a NFC antenna 200 according to an embodiment of the present disclosure.
  • NFC antenna 200 includes a pillar support 201 and a winding wire 202.
  • Winding wire 202 is wound on the side surface of pillar support 201 to form a plurality of coils 202a and 202b.
  • the winding wire can be any wire suitable for making a coil, such as a copper core enameled wire. Each coil may have multiple turns of winding.
  • the example embodiment of FIG. 2 shows two coils 202a and 202b, but embodiments of the present disclosure may also use more coils, such as 3, 4, etc. Multiple coils are electrically connected in series or in parallel, and the choice of which can be determined according to specific applications.
  • the electrical potentials induced by the multiple coils can be accumulated.
  • Those skilled in the art can design the winding direction and/or connection relationship of multiple coils according to practical application requirements, so as to achieve accumulation of potentials or currents required by practical applications.
  • the winding directions of two adjacent coils can be designed to be opposite in order to accumulate electrical potentials in some scenarios.
  • adjacent coils among the plurality of coils are spaced apart from each other by a predetermined distance. In the example of FIG. 2, there are only two coils 202a and 202b, which are adjacent coils, and the separation distance between the two is d.
  • the predetermined distance can be predetermined according to the specific application of antenna 200, for example, according to the shape and size of the counterpartcounterpart antenna to be used. In the case of having 3 or more coils, there are multiple groups of adjacent coils, and the predetermined distances between adjacent coils of different groups can be the same or different.
  • NFC antenna 200 shown in FIG. 2 is a three dimensional (3D) coil antenna (hereinafter also referred to as a "3D antenna"), and its pillar support 201 can be a column of any shape, for example, a cylinder or a prism, and the prism may be a prism with any cross-sectional shape, such as a prism with a square cross-section. Furthermore, pillar support 201 may adopt a hollow structure and/or lightweight materials to reduce the weight of NFC antenna 200. For example, pillar support 201 may be a plastic hollow column.
  • the multi-coil 3D structure of NFC antenna 200 makes coupling forms of the magnetic field more abundant, such that the antenna can have higher coupling efficiency in different directions and positions.
  • FIGs. 3A-3D take 3D antenna 200 with two coils in FIG. 2 as an example for description.
  • FIGs. 3A-3D use 3D antenna 200 as the receiver antenna, and planar antenna 102 shown in FIG. 1 as the transmitting antenna to illustrate the coupling performance between them.
  • planar antenna 102 is selected as the counterpart antenna of 3D antenna 200 in an embodiment of the present disclosure is that the NFC antenna in a portable device is usually a planar antenna.
  • planar antenna 102 is located on the top of 3D antenna 200, and planar antenna 102 is perpendicular to the pillar support of 3D antenna 200 (that is, perpendicular to the axis of the pillar support).
  • the central magnetic lines of force emitted by planar antenna 102 are substantially perpendicular to the coil of 3D antenna 200 (that is, parallel to the axis of the pillar support), and thus can pass through the coil of 3D antenna 200 to achieve high coupling efficiency.
  • planar antenna 102 is located at the side of 3D antenna 200 and parallel to the pillar support of 3D antenna 200.
  • the center of planar antenna 102 is substantially aligned to the middle of two coils 202a and 202b of 3D antenna 200.
  • both coil 202a and coil 202b are not aligned to the center of planar antenna 102. Therefore, the magnetic lines of force directed to coil 202a and coil 202b emitted by planar antenna 102 are not parallel to the respective coils, such that good coupling can be achieved.
  • FIG. 3B planar antenna 102 is located at the side of 3D antenna 200 and parallel to the pillar support of 3D antenna 200.
  • the center of planar antenna 102 is substantially aligned to the middle of two coils 202a and 202b of 3D antenna 200.
  • both coil 202a and coil 202b are not aligned to the center of planar antenna 102. Therefore, the magnetic lines of force directed to coil 202a and coil 202b emitted by plan
  • magnetic lines of force Ml directed to coil 202a are not parallel to coil 202a, so they can pass through coil 202a; magnetic lines of force M2 aligned to coil 202b are not parallel to coil 202b, so they can pass through coil 202b. Therefore, high coupling efficiency is formed between 3D antenna 200 and planar antenna 102.
  • planar antenna 102 is also located at the side of 3D antenna 200 and parallel to the pillar support of 3D antenna 200, but the center of planar antenna 102 is substantially aligned to the middle of coil 202a of 3D antenna 200.
  • the central magnetic lines of force Ml directed to coil 202a emitted by planar antenna 102 are substantially parallel to coil 202a (that is, perpendicular to the pillar support), so that central magnetic lines of force Ml cannot effectively pass through coil 202a to couple with it.
  • coil 202b is not aligned to the center of planar antenna 102.
  • planar antenna 102 magnetic lines of force M2 aligned to coil 202b emitted by planar antenna 102 are not parallel to coil 202b and can pass through coil 202b to achieve good coupling. Therefore, 3D antenna 200 can still achieve a high coupling efficiency with planar antenna 102.
  • planar antenna 102 is also located at the side of 3D antenna 200 and parallel to the pillar support of 3D antenna 200, but the center of planar antenna 102 is substantially aligned to the middle of coil 202b of 3D antenna 200.
  • central magnetic lines of force M2 directed to coil 202b emitted by planar antenna 102 are substantially parallel to coil 202b (that is, perpendicular to the pillar support), so that they cannot effectively pass through coil 202b to couple with it.
  • coil 202a is not aligned to the center of planar antenna 102.
  • planar antenna 102 magnetic lines of force Ml directed to coil 202a emitted by planar antenna 102 is not parallel to coil 202a and can pass through coil 202a to achieve better coupling. Therefore, 3D antenna 200 can still achieve high coupling efficiency with planar antenna 102.
  • the NFC antenna according to an embodiment of the present disclosure can achieve high coupling efficiency in different directions and positions, which has obvious advantages relative to the planar antenna shown in FIG. 1.
  • the planar antenna shown in Fig. 1 has good coupling efficiency only when the counterpart antenna is parallel to it.
  • the NFC antenna according to an embodiment of the present disclosure has a plurality of mutually distanced coils, such that the counterpart antenna has good coupling efficiency at multiple positions at its side.
  • FIG. 4 shows a schematic diagram of the coupling performance of stereo antenna 400 with only one coil and counterpart planar antenna 102.
  • the difference between 3D antenna 400 in FIG. 4 and 3D antenna 200 in FIG. 2 is that 3D antenna 400 has only one coil 402, while 3D antenna 200 in FIG. 2 has two mutually distanced coils 202a and 202b.
  • FIG. 4 uses 3D antenna 400 as a receiver antenna and planar antenna 102 as a transmitting antenna.
  • planar antenna 102 is located at the side of 3D antenna 400 and parallel to the pillar support of 3D antenna 400, and the center of planar antenna 102 is substantially aligned to the middle of coil 402 of 3D antenna 400.
  • the central magnetic lines of force emitted by antenna 102 are substantially parallel to coil 402, which makes it difficult for the central magnetic lines of force to pass through coil 402 to achieve good coupling.
  • the 3D antenna with a plurality of mutually distanced coils according to an embodiment of the present disclosure does not have the situation that the center of counterpart planar antenna 102 is aligned to all the coils. Therefore, compared with the 3D antenna with only one coil, the 3D antenna with multiple coils can make the counterpart coil have higher coupling efficiency in more positions.
  • FIG. 5 shows an NFC antenna 500 with three mutually distanced coils 502a, 502b, and 502c. Among the three coils, there are two sets of adjacent coils, namely coils 502a and 502b, coils 502b and 502b. The distance dl between coils 502a and 502b and the distance d2 between coils 502b and 502b can be the same or different.
  • the pillar support of the NFC antenna is not limited to a cylinder, but can also be a prism with any cross- sectional shape.
  • FIG. 6 shows an NFC antenna 600 with a prism with a square cross-section as the pillar support, which has two coils 602a and 602b. The distance between coils 602a and 602b is d.
  • the NFC antenna according to an embodiment of the present disclosure can be used in various devices with NFC function to facilitate a user's portable device (such as a mobile phone) to access the device from different directions and positions to achieve good NFC interaction.
  • an embodiment of the present disclosure provides a driving apparatus of LED luminaire using the NFC antenna.
  • FIG. 7 shows a driving apparatus 701 and an LED luminaire 700 having driving apparatus 701 according to an embodiment of the present disclosure.
  • LED luminaire 700 comprises a driving apparatus 701 and an LED module 702.
  • Driving apparatus 701 is used to drive LED module 702, for example, to supply power to LED module 702, and/or to control the switch, brightness, color or the like of LED module 702.
  • LED module 702 can comprise one or more LEDs.
  • Driving apparatus 701 comprises a PCB 7011 on which a driver chip 7012 and an antenna 7013 according to an embodiment of the present disclosure are mounted.
  • Driver chip 7012 is used to drive the LEDs in LED luminaire 700.
  • Antenna 7013 is electrically connected to driver chip 7012 for driver chip 7012 to communicate information with an external device (for example, a portable device) through NFC.
  • the interaction between driving chip 7012 and an external device includes, for example, obtaining driving parameters or other data from the external device, or receiving programming codes from the external device through antenna 7013 to achieve in-field programming when driving chip 7012 is an in-field programmable driver chip.
  • driver chip 7012 can also send data to the portable device through NFC, for example, send status data of the LED luminaire to the portable device.
  • Antenna 7012 is mounted on the PCB 7011 through its pillar support, for example, it can be perpendicularly mounted on PCB 7011 as shown in FIG. 7.
  • driving apparatus 701 and LED module 702 may be integrated together in a housing, or used as separate components in their respective housings.
  • driving apparatus 701 and LED luminaire 700 according to an embodiment of the present disclosure may also comprise other components not shown in the figure.
  • Driving apparatus 701 can be conveniently programmed on the production line and in the field.
  • PCB 7011 of driving apparatus 701 is usually parallel to a conveyor belt, and an external device for programming is usually set at the side of the conveyor belt.
  • the antenna of the external device can be coupled at the side of antenna 7012 of the driving apparatus.
  • driving apparatus 701 is used in the field, although the direction and position of driving apparatus 701 convenient for users may be changed due to the diversity of its installation positions and methods, the NFC antenna of driving apparatus 701 according to the present disclosure can have high coupling performance in multiple directions and positions. Therefore, users can use portable devices to couple with the antenna in multiple different directions and positions, which greatly improves the convenience of in-field programming or data transmission.
  • circuits, units, components, apparatus, devices and systems involved in the present disclosure are merely illustrative examples and not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams.
  • these circuits, units, components, apparatus, devices and systems can be connected, arranged, and configured in any manner, as long as the desired purpose can be achieved.
  • the circuits, units, components, apparatus involved in the present disclosure may be implemented in any suitable manner, such as an Application- Specific Integrated Circuit(ASIC), a Field Programmable Gate Array (FPGA), etc., or a general purpose processor combined with programs.
  • ASIC Application- Specific Integrated Circuit
  • FPGA Field Programmable Gate Array

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

La présente invention concerne une antenne pour une communication en champ proche, un appareil d'entraînement pour diode électroluminescente, et un luminaire à diodes électroluminescentes. L'antenne comprend un support de pilier et un fil d'enroulement, le fil d'enroulement est enroulé sur la surface latérale du support de pilier pour former une pluralité de bobines; la pluralité de bobines étant électriquement connectées en série ou en parallèle; et des bobines adjacentes parmi la pluralité de bobines étant espacées l'une de l'autre d'une distance prédéterminée. L'appareil d'entraînement comprend une carte de circuit imprimé, une puce de commande et l'antenne. Le luminaire à diode électroluminescente comprend un module de diode électroluminescente et l'appareil d'entraînement. L'antenne selon un mode de réalisation de la présente invention peut atteindre de bonnes performances de couplage dans de multiples directions et positions.
PCT/EP2022/072427 2021-09-17 2022-08-10 Antenne pour communication en champ proche, appareil de commande et luminaire à diodes électroluminescentes WO2023041258A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111094015.5 2021-09-17
CN202111094015.5A CN115832673A (zh) 2021-09-17 2021-09-17 用于近场通信的天线、驱动装置及发光二极管灯具

Publications (1)

Publication Number Publication Date
WO2023041258A1 true WO2023041258A1 (fr) 2023-03-23

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005259069A (ja) * 2004-03-15 2005-09-22 Bijita System:Kk Ｒｆｉｄ用チップ型機器
EP2397974A1 (fr) * 2010-06-18 2011-12-21 HSU, Chih-Hsien Carte intelligente RFID non directionnelle
WO2015140017A1 (fr) * 2014-03-21 2015-09-24 Koninklijke Philips N.V. Structure optique, unité d'éclairage et procédé de fabrication
US20180026329A1 (en) * 2016-07-19 2018-01-25 Abl Ip Holding Llc Thin wire antenna for control devices, for example, for control of or inclusion in a luminaire
US20180048067A1 (en) * 2016-02-03 2018-02-15 Shenzhen Sunway Communication Co., Ltd Z-Shaped Dual Ring Winding Type NFC Antenna and Antenna System
US20180077779A1 (en) * 2016-09-09 2018-03-15 Abl Ip Holding Llc Control modules having integral antenna components for luminaires and wireless intelligent lighting systems containing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005259069A (ja) * 2004-03-15 2005-09-22 Bijita System:Kk Ｒｆｉｄ用チップ型機器
EP2397974A1 (fr) * 2010-06-18 2011-12-21 HSU, Chih-Hsien Carte intelligente RFID non directionnelle
WO2015140017A1 (fr) * 2014-03-21 2015-09-24 Koninklijke Philips N.V. Structure optique, unité d'éclairage et procédé de fabrication
US20180048067A1 (en) * 2016-02-03 2018-02-15 Shenzhen Sunway Communication Co., Ltd Z-Shaped Dual Ring Winding Type NFC Antenna and Antenna System
US20180026329A1 (en) * 2016-07-19 2018-01-25 Abl Ip Holding Llc Thin wire antenna for control devices, for example, for control of or inclusion in a luminaire
US20180077779A1 (en) * 2016-09-09 2018-03-15 Abl Ip Holding Llc Control modules having integral antenna components for luminaires and wireless intelligent lighting systems containing the same

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