IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0785582
(2007-04-18)
|
등록번호 |
US-7460073
(2008-12-02)
|
발명자
/ 주소 |
- Schillmeier,Gerald
- Mierke,Frank
- Lankes,Thomas
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
2 |
초록
▼
An RFID antenna system for a goods identification system with the following features: the RFID antenna device and/or a side limit receiving this RFID antenna device comprise(s) at least two antenna, the at least two antennae for the goods identification system (GIS) consist of patch antennae, the at
An RFID antenna system for a goods identification system with the following features: the RFID antenna device and/or a side limit receiving this RFID antenna device comprise(s) at least two antenna, the at least two antennae for the goods identification system (GIS) consist of patch antennae, the at least two patch antennae are arranged mutually offset in the direction of the passageway or passage region, or at least with one component mutually offset in the passage direction, and the at least two patch antennae are arranged at an equal spacing from a floor area of the passageway and/or on the same horizontal plane or offset thereto, and, more precisely, in such a way that a straight line laid through the center points and/or centers of gravity of at least two adjacent patch antennae encloses an angle α with respect to a horizontal plane and/or a plane that is parallel to the floor space, which angle is ≦45��.
대표청구항
▼
The invention claimed is: 1. An RFID antenna system for a goods identification system (GIS) comprising: at least one RFID antenna device read out from RFID tags equipped with a microchip, the at least one RFID antenna device being arranged at least on one side of a passageway or passage region for
The invention claimed is: 1. An RFID antenna system for a goods identification system (GIS) comprising: at least one RFID antenna device read out from RFID tags equipped with a microchip, the at least one RFID antenna device being arranged at least on one side of a passageway or passage region for monitoring, and on two opposing sides with respect to a passageway or passage region extending therebetween, laterally offset from each other and therefore transversely to a passage direction, the RFID antenna device and/or a side limit receiving the RFID antenna device comprising at least two antennas the at least two antennas for the goods identification system (GIS) comprising patch antennas, the at least two patch antennas being arranged mutually offset in the direction of the passageway or passage region, or at least with one component mutually offset in the passage direction, and the at least two patch antennas being arranged at an equal spacing from a floor space of the passageway and/or on the same horizontal plane or offset thereto, in such a way that a straight line laid through the center points and/or centers of gravity of at least two adjacent patch antennas encloses an angle α with respect to a horizontal plane and/or a plane that is parallel to the floor space, which angle is ≦45��. 2. The RFID antenna system as claimed in claim 1, wherein in the passage direction more than two patch antennas are arranged laterally offset from each other. 3. The RFID antenna system as claimed in claim 1, wherein a plurality of groups (A, B) consisting of two more patch antennas arranged laterally offset from each other are arranged at different levels to each other, at different levels relative to the level of the floor space. 4. The RFID antenna system as claimed in claim 3, wherein two groups (A, B) of patch antennas arranged at different levels to each other are activated with different phase angles to generate a different up-tilt or down-tilt angle. 5. The RFID antenna system as claimed in claim 3, wherein at least two patch antennas of a group (A, B) of patch antennas, are mutually offset in the passage direction, are activated with different phase angles, whereby the monitored region can be adjusted in one direction or in the opposite direction to the passage direction. 6. The RFID antenna system as claimed in claim 1, wherein only one or a plurality of cooperating group(s) (A, B) of patch antenna are provided in an RFID antenna device. 7. The RFID antenna system as claimed in claim 6, wherein the at least one or more cooperating group(s) of patch antennas are arranged at a level with respect to the passageway and/or the floor space of the passageway which is ≧0.3 m and ≦2 m. 8. The RFID antenna system as claimed in claim 1, wherein a plurality of regions (X1, X2) are provided with one or more cooperating group(s) (A, B) of patch antennas which on the one hand are arranged in a low level region of the RFID antenna device or side limits and a region of the RFID antenna device or the side limits that is higher in comparison. 9. The RFID antenna system as claimed in claim 8, wherein antenna devices arranged between two regions (X1, X2) that are provided offset in the vertical and/or height direction and each comprising one or more cooperating groups (A, B) of patch antennas have a vertical spacing of at least 0.1 m and preferably less than 2.0 m, and in that the vertical spacing of the lowest patch antennas, or a lowest group of patch antennae, from the floor space of the passageway is in the range of 0.3 m to 1.5 m. 10. The RFID antenna system as claimed in claim 1, wherein the patch antennas radiate in the UHF range. 11. The RFID antenna system as claimed in claim 1, wherein the patch antennas comprise a patch plane a substrate situated therebelow and a ground plane situated therebelow, and in that the patch antenna thus formed is capacitively arranged upstream of a ground plane or is connected via direct current or conductively to the ground plane, the patch antenna and the ground plane being oriented transversely and preferably perpendicularly to the passageway and/or to the passage direction. 12. The RFID antenna system as claimed in claim 1, wherein the patch antenna comprises a patch plane, a substrate situated therebelow and a ground plane, the patch antenna and the ground plane being oriented transversely and preferably perpendicularly to the passageway and/or to the passage direction. 13. The RFID antenna system as claimed in claim 11, wherein the substrate consists of a dielectric body. 14. The RFID antenna system as claimed in claim 11, wherein the substrate consists of air and the electrical spacers are provided for positioning and retaining the patch plane. 15. The RFID antenna system as claimed in claim 1, wherein at least one group (A, B) of patch antennas comprises at least two mutually offset patch antennae, the antennae being arranged upstream of a common ground plane. 16. RFID antenna system as claimed in claim 15, wherein a group (A, B) of at least two patch antennas comprise a common substrate, on the back of which a common ground plane is preferably provided, at least two patch planes that are electrically isolated being formed on the radiator side on the substrate so as to oppose the ground plane. 17. The RFID antenna system as claimed in claim 6, wherein each patch antenna comprises a feeder which passes through a through-opening in the ground plane, an adjoining through-opening in the respective ground plane of the patch antenna and an adjoining channel which extends through the substrate as far as a feeding point on the patch plane, the feeding point preferably being located on the lower side of the patch plane. 18. The RFID antenna system as claimed in claim 1, wherein a group (A, B) of patch antennas is arranged upstream of a common ground plane, of which the vertical extent is preferably between 5 cm and 40 cm. 19. The RFID antenna system as claimed in claim 1, wherein additional patch antennas are preferably provided which are preferably provided in the lower region of the RFID antenna device and/or the side limit at the transition region to the floor space, of which the main direction of radiation and/or patch plane is preferably pre-aligned with an upwardly pointing vertical component. 20. The RFID antenna system as claimed in claim 1, wherein one or more patch antenna(s) are preferably provided at the upper end region of the RFID antenna device and/or the side limit, of which the main direction of radiation and/or patch plane is assembled so as to be pre-aligned with a downwardly directed vertical component. 21. The RFID antenna system as claimed in claim 1, wherein at least two patch antennas that are mutually offset in the passage direction and/or at least two patch antennas that are mutually offset in the height and/or vertical direction are provided which are activated with a different phase and preferably a differently adjustable phase. 22. The RFID antenna system as claimed in claim 1, wherein, preferably in the region of the floor space and/or above the passageway, at least one and preferably a plurality of patch antenna(s) is/are provided so as to be mutually offset in the passage direction. 23. RFID antenna system as claimed in claim 1, wherein the patch antennas can be retrofitted and/or integrated in antennas and/or frame antennas that form part of an electronic article surveillance system (EAS). 24. The RFID antenna system as claimed in claim 1, wherein a plurality of RFID antenna devices and/or side limits with lateral offset are disposed thereby forming a plurality of passageways extending therebetween, patch antennas being fitted in the middle RFID antenna devices and/or side limits, some of the antennas radiating in one direction and some in the opposing direction to monitor two passageways that are located adjacent to each other. 25. The RFID antenna system as claimed in claim 1, wherein frame antennae that form part of an article surveillance system (EAS) are provided, and in that at least one patch antenna is integrated in a frame antenna, and in that preferably the patch antennas are integrated inside the frame antennas in a plan view of the frame antennas.
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