CN114335987A - Antenna module with RFID electronic tag formula - Google Patents
Antenna module with RFID electronic tag formula Download PDFInfo
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- CN114335987A CN114335987A CN202210248978.4A CN202210248978A CN114335987A CN 114335987 A CN114335987 A CN 114335987A CN 202210248978 A CN202210248978 A CN 202210248978A CN 114335987 A CN114335987 A CN 114335987A
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Abstract
The invention provides an antenna module with RFID electronic tag type, comprising: a substrate; a radiation layer disposed on the front surface of the substrate; the grounding layer is arranged on the side surface of the substrate; the RFID chip is arranged on the front surface of the substrate, and two sides of the RFID chip are provided with pins which are electrically connected with the radiation layer and the grounding layer; the substrate comprises a first substrate and a second substrate which is connected with the first substrate in a folding mode; the first substrate is internally provided with a channel and a sealing block; when the first substrate and the second substrate are unfolded and laid flat, the opening of the channel is sealed by the sealing block; when the first substrate and the second substrate are folded, the sealing blocks are staggered with the opening of the channel, so that the channel is communicated with the outside. According to the invention, under the condition that the tiling size of the substrate is changed, the signal receiving and transmitting of the whole antenna module are not interfered, and the condition that the transmitting signal receiving and transmitting are weakened is avoided.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to an antenna module with an RFID electronic tag type.
Background
When manufacturing an RFID tag in the market, a plastic sheet is prepared, a receiving and transmitting antenna is manufactured on the plastic sheet, an RFID chip is attached to the plastic sheet, and a pin of the RFID chip is electrically connected to the antenna. When the RFID electronic tag is manufactured, the RFID electronic tag can be fixed on a commodity. When the RFID reader is used, the RFID reader emits radio waves to touch the RFID tag in the induction range, and the current is generated by electromagnetic induction so as to supply the chip on the RFID tag to operate and send out electromagnetic waves to respond to the RFID reader, so that the RFID reader can read the data of the RFID chip. As disclosed in CN 102386475A: RFID tag type panel antenna and the solution disclosed in CN 103943939B: the panel antenna module with the RFID electronic tag type can be applied to metal surfaces or objects with large metal areas or liquid, and an RFID reader cannot be interfered when reading data. However, the area of the antenna itself is fixed when the two solutions are used, and when the volume of the mounted article/commodity is smaller than the predetermined volume of the antenna, the antenna of the existing solution is inconvenient to mount. If the volume of the mounted article/commodity is found to be smaller than the set volume of the antenna, if the antenna of the two schemes is mounted after being reduced in volume, how to ensure that the receiving and transmitting signals of the mounted antenna are not weakened compared with the original signals is ensured.
Disclosure of Invention
The present invention is directed to an antenna module with an RFID tag to solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme:
an antenna module having an RFID electronic tag type, comprising:
a substrate;
a radiation layer disposed on the front surface of the substrate;
the grounding layer is arranged on the side surface of the substrate;
the RFID chip is arranged on the front surface of the substrate, and two sides of the RFID chip are provided with pins which are electrically connected with the radiation layer and the grounding layer;
the substrate comprises a first substrate and a second substrate which is connected with the first substrate in a folding mode;
the first substrate is internally provided with a channel and a sealing block;
when the first substrate and the second substrate are unfolded and laid flat, the opening of the channel is sealed by the sealing block;
when the first substrate and the second substrate are folded, the sealing blocks are staggered with the opening of the channel, so that the channel is communicated with the outside.
Preferably, a groove is formed in the first substrate, the sealing block is located in the groove and provided with a guide post, and when the first substrate and the second substrate are unfolded and laid flat, a part of the sealing block is pushed into the second substrate through the guide post, so that the first substrate and the second substrate are relatively fixed.
Preferably, the guide post is fixed to a handle inserted into the groove, the guide post is sleeved with a return spring, and the groove is internally provided with a baffle plate which compresses the return spring when the guide post pushes a part of the sealing block into the second base.
Preferably, have on the second substrate and supply sealed piece male breach, the symmetry is equipped with elastic joint bump in the breach, be equipped with on the sealed piece with the joint bump to the recess of adaptation.
Preferably, the channel horizontal portion is adjacent to and parallel to the radiation layer of the first substrate, and a branch channel is provided between the channel and the radiation layer.
Preferably, the radiation layers of the first substrate and the second substrate are connected through a connecting part, and when the first substrate and the second substrate are unfolded and laid flat, the connecting part is folded into a receiving groove formed in the first substrate.
Preferably, the ground layer includes a first ground layer and a second ground layer, wherein the first ground layer is mounted on a side surface of the first substrate and connected to the pin on one side of the RFID chip, the second ground layer is mounted on a side surface of the second substrate, and when the first substrate and the second substrate are folded, the first ground layer and the second ground layer are in contact connection.
Preferably, an insulating part is arranged between the second ground layer and the radiation layer of the second substrate.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the first substrate and the second substrate can be unfolded, relatively fixed and mutually folded, so that the size of the substrate fixed to the article/commodity can be increased with optional scope under the condition of a given size of the substrate. When the two are unfolded and fixed relatively, the substrate can be installed and fixed on a product of a metal object with larger volume/area, so that the receiving and transmitting signals of the substrate (radiation layer) of the antenna module can obtain better effect. After the two are folded each other, can be with on the product of the metal object of base installation fixed to less volume/area, and make the permeability of a part radiation layer receiving and dispatching signal on the base obtain the reinforcing through setting up the passageway, so under the tiling size change condition of base, the signal reception and the transmission of whole antenna module can not receive the interference, avoid the condition that the transmission signal receiving and dispatching weakens.
Drawings
FIG. 1 is a three-dimensional schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a groove formed in a first substrate according to the present invention;
FIG. 3 is a schematic view of the first and second substrates of the present invention laid out flat (fixed relative to each other);
FIG. 4 is a schematic view of a first substrate and a second substrate folded (fully) in accordance with the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 4 according to the present invention.
In the figure: the RFID chip comprises a substrate 1, a first substrate 2, a second substrate 3, an RFID chip 4, a radiation layer 5, a pin 6, a first grounding layer 7, a second grounding layer 8, a groove 9, a handle 10, an insulating part 11, a channel 12, a branch channel 13, a sealing block 14, a receiving groove 15, a connecting part 16, a guide pillar 17, a return spring 18, a baffle plate 19, a clamping bump 20, an opening 21, a groove 22 and a notch 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to fig. 1 to 6, the present invention provides a technical solution:
an antenna module having an RFID electronic tag type, comprising:
a substrate 1;
a radiation layer 5 provided on the front surface of the substrate 1;
a ground layer disposed on a side surface of the substrate 1;
the RFID chip 4 is arranged on the front surface of the substrate 1, pins 6 are arranged on two sides of the RFID chip 4, and the pins 6 are electrically connected with the radiation layer 5 and the grounding layer;
the substrate 1 comprises a first substrate 2 and a second substrate 3 which is connected with the first substrate 2 in a folding way;
the first substrate 2 is internally provided with a channel 12 and a sealing block 14;
when the first substrate 2 and the second substrate 3 are unfolded and laid flat, the sealing block 14 seals the opening 21 of the channel 12;
when the first substrate 2 and the second substrate 3 are folded, the sealing block 14 is offset from the opening 21 of the channel 12, so that the channel 12 communicates with the outside.
Specifically, the first substrate 2 is provided with a groove 9, the sealing block 14 is located in the groove 9, and a guide post 17 is installed on the sealing block, when the first substrate 2 and the second substrate 3 are unfolded and laid flat, a part of the sealing block 14 is pushed into the second substrate 3 through the guide post 17, so that the first substrate 2 and the second substrate 3 are relatively fixed. The guide post 17 is fixed to the handle 10 inserted into the groove 9, the guide post 17 is sleeved with a return spring 18, and the groove 9 is internally provided with a baffle plate 19 which compresses the return spring 18 when the guide post 17 pushes a part of the sealing block 14 into the second substrate 3.
In the present invention, the substrate 1 comprises a first substrate 2 and a second substrate 3, the first substrate 2 and the second substrate 3 being fold-joined, having a joining edge C. Can be fixed with each other when the two are unfolded and tiled. After the antenna module is developed, the substrate 1 and the (metal) radiation layer 5 on the front surface thereof are flat base surfaces, and the radiation layer 5 is used for receiving and transmitting signals, so that the area of the radiation layer 5 of the antenna module is expanded and increased, the receiving and transmitting effects of the antenna module are better, and the RFID electronic tag can be applied to a metal object product (not shown) with a larger volume.
Specifically, have on the second basement 3 and supply sealed piece 14 male breach 23, the symmetry is equipped with in the breach 23 and has elastic joint bump 20, be equipped with on the sealed piece 14 with the joint bump 20 to the recess 22 of adaptation. The radiation layers 5 of the first substrate 2 and the second substrate 3 are connected through a connecting part 16, and when the first substrate 2 and the second substrate 3 are unfolded and laid flat, the connecting part 16 is folded into a containing groove 15 formed in the first substrate 2.
In the present invention, as shown in fig. 3 and 5, when the first substrate 2 and the second substrate 3 are unfolded and laid flat, the guide post 17 is pushed by the handle 10, so that the guide post 17 pushes the sealing block 14 to extend to the notch 23. Whereas, due to the provision of the indentation 23 of the second substrate 3, it is possible to insert (a part of) the sealing block 14 into the indentation 23. By providing the clamping protrusion 20 in the notch 23 and providing the groove 22 on the sealing block 14, when the sealing block 14 is inserted into the notch 23 by applying a force, the clamping protrusion 20 with elasticity can be clamped into the groove 22, so that the first substrate 2 and the second substrate 3 can be relatively fixed in a horizontal direction, so as to fix (the back of) the substrate 1 to an article/commodity.
When the first substrate 2 and the second substrate 3 are unfolded and laid flat, the connecting portion 16 is folded in the receiving groove 15. The connection portion 16 may be corrugated and folded to be received in the receiving groove 15, or the connection portion 16 may be made into an elastic connection cord or a connection strip having stretchability, so as to connect the radiation layers 5 on the front surfaces of the first substrate 2 and the second substrate 3 for substantially communicating, and specifically, a microstrip line may be used. As shown in fig. 6, when the first substrate 2 and the second substrate 3 are folded, the distance between the first substrate 2 and the radiation layer 5 itself on the second substrate 3 becomes large. The radiation layers 5 of the two can be ensured to be continuously connected by the connecting part 16.
In the present invention, the handle 10 pushes the guide post 17 to drive the sealing block 14, and this driving mainly means pushing (a part of) the sealing block 14 into the notch 23, so as to relatively fix the first substrate 2 and the second substrate 3. And as shown in fig. 2, one end of the handle 10 extends into the groove 9 and is fixedly installed with the guide post 17, and the handle 10 can push the handle. And the groove 9 here is a groove body in the shape of an inverted "T".
In the present invention, after the first substrate 2 and the second substrate 3 are spread and laid flat, they are fixed relatively, and the area is expanded, so that the signal receiving and transmitting by the radiation layer 5 on the substrate 1 can be enhanced and improved. However, since the size of the whole substrate 1 is predetermined, when the substrate needs to be mounted on or switched from a relatively small area of the article/commodity to a relatively large area of the article/commodity, the problem can be solved by folding the first substrate 2 and the second substrate 3.
In the present invention, the horizontal portion of the channel 12 is adjacent to the radiation layer 5 of the first substrate 2 and is disposed parallel to the radiation layer 5, and a branch channel 13 is provided between the channel 12 and the radiation layer 5. As shown in fig. 4 and 6, the first base 2 and the second base 3 are completely folded, and at this time, the guide post 17 receives the elastic force generated by the compression of the return spring 18 sleeved thereon, so that the sealing block 14 can be retracted into the groove 9 to disengage the sealing block 14 from the notch 23, and the sealing block 14 is staggered from the opening 21 of the channel 12 to communicate the channel 12 with the outside. This ensures that the radiation layer 5 of the first substrate 2 is in communication with the outside through the branch channels 13, 12, i.e. the radiation layer 5 corresponding to the portion is "bare" and, considering that the size of the substrate 1 is not affected and the influence of high humidity air, it is preferable that the inner diameters of the channels 12, the openings and the branch channels 13 are in the range of one eighth to one twelfth of the thickness of the substrate 1.
Generally, after the first substrate 2 and the second substrate 3 are completely folded, the whole substrate 1 and the radiation layer 5 that are unfolded and fixed relative to the first substrate 2 and the second substrate 3 become small in size, which may cause the signals received and transmitted by the radiation layer 5 to be affected and weakened. However, in the present invention, after the first substrate 2 and the second substrate 3 are folded, the channel 12 is disposed, so that the transceiving signal can pass through the channel 12, thereby enhancing the transceiving effect of the signal of the radiation layer 5 (a part of the first substrate 2 is referred to herein), further ensuring that the receiving and transmitting signals in the radiation layer 5 are not affected by the change of the tiling size, and further, after the first substrate 2 and the second substrate 3 are folded, the volume of the whole antenna module is compressed, so as to facilitate carrying.
The ground layers include a first ground layer 7 and a second ground layer 8, wherein the first ground layer 7 is mounted on the side surface of the first substrate 2 and connected to the pin 6 on the side of the RFID chip 4, the second ground layer 8 is mounted on the side surface of the second substrate 3, and when the first substrate 2 and the second substrate 3 are folded, the first ground layer 7 and the second ground layer 8 are in contact connection. An insulating part 11 is arranged between the second ground layer 8 and the radiation layer 5 of the second substrate 3.
In the present invention, the first substrate 2 and the second substrate 3 may be folded, which may add an optional margin to the size of the article/commodity to which the substrate 1 may be secured for a given size of the substrate 1. Moreover, the seal block 14 is accommodated in the groove 9 after the folding of the two, so that the mounting of the first base 2 and the second base 3 is not affected, and the stretching of the connecting portion 16 is not affected. Considering that the thickness of the whole substrate 1 will increase after the two are folded, the (metal) ground plane includes 2 parts, namely the first ground plane 7 and the second ground plane 8, and the first ground plane 7 and the second ground plane 8 are connected and conducted after the two are folded, so that the purpose of the ground plane for grounding can be realized. This can be independent of thickness: namely, the situation that the contact surfaces of the first substrate 2 and the second substrate 3 are covered with the ground layer after the superposition, so that the ground layer cannot be grounded is avoided. And after the first substrate 2 and the second substrate 3 are unfolded, the purpose of grounding through the first grounding layer 7 is still achieved.
In the invention, when the first substrate 2 and the second substrate 3 need to be folded from the unfolded and fixed state, a certain force needs to be applied, so that the elastic clamping salient point 20 can be released from the clamping fit of the groove 22. And the elastic clamping bumps 20 are in clamping fit with the grooves 22, so that the acting force for mutually fixing the two substrates of the first substrate 2 and the second substrate 3 is provided, and the acting force needs to be larger than the mutually fixing acting force.
According to the invention, the first substrate 2 and the second substrate 3 can be unfolded, relatively fixed and mutually folded, so that the size of fixing the substrate 1 to an article/commodity can be increased with optional scope under the condition that the size of the substrate 1 is determined. When the two are unfolded and fixed relatively, the substrate 1 can be installed and fixed on a product of a metal object with a larger volume/area, so that the receiving and transmitting signals of the substrate 1 (the radiation layer 5) can obtain better effect. After the two are folded each other, can install the base 1 and fix on the product of the metal object of less volume/area, and make some radiation layer 5 on the base 1 receive and dispatch the permeability of signal and strengthen through setting up the passageway 12, so under the tiling size change condition of base 1, the signal reception and the transmission of whole antenna module can not receive the interference, avoids the condition that the transmission signal receiving and dispatching weakens.
The invention, the remaining parts not described, are the same as, or known or realizable by the prior art and will not be described in detail here.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An antenna module in the form of an RFID electronic tag, comprising:
a substrate (1);
a radiation layer (5) provided on the front side of the substrate (1);
a ground layer provided on a side surface of the substrate (1);
the RFID chip (4) is arranged on the front surface of the substrate (1), pins (6) are arranged on two sides of the RFID chip (4), and the pins (6) are electrically connected with the radiation layer (5) and the grounding layer;
the substrate (1) comprises a first substrate (2) and a second substrate (3) connected with the first substrate (2) in a folding way;
the first substrate (2) is internally provided with a channel (12) and a sealing block (14);
when the first substrate (2) and the second substrate (3) are unfolded and laid flat, the opening (21) of the channel (12) is sealed by the sealing block (14);
when the first substrate (2) and the second substrate (3) are folded, the sealing block (14) is staggered with the opening (21) of the channel (12) so that the channel (12) is communicated with the outside.
2. An antenna module with RFID tag as claimed in claim 1, wherein the first substrate (2) is provided with a slot (9), the sealing block (14) is located in the slot (9) and is provided with a guide pillar (17), and when the first substrate (2) and the second substrate (3) are unfolded and laid flat, a part of the sealing block (14) is pushed into the second substrate (3) by the guide pillar (17), so that the first substrate (2) and the second substrate (3) are relatively fixed.
3. An antenna module of the RFID tag type according to claim 2, wherein the guide post (17) is fixed to a handle (10) inserted into the groove (9), the guide post (17) is fitted with a return spring (18), and the groove (9) is provided with a stopper (19) for compressing the return spring (18) when the guide post (17) pushes a part of the sealing block (14) into the second substrate (3).
4. The antenna module with the RFID electronic tag type according to claim 2 or 3, wherein the second substrate (3) has a notch (23) for inserting the sealing block (14), the notch (23) is symmetrically provided with elastic clamping bumps (20), and the sealing block (14) is provided with a groove (22) which is matched with the clamping bumps (20) in the direction.
5. An antenna module in the form of an RFID tag according to claim 1, characterized in that the horizontal part of the channel (12) is adjacent to the radiating layer (5) of the first substrate (2) and is arranged parallel to the radiating layer (5), with a branch channel (13) between the channel (12) and the radiating layer (5).
6. An antenna module with RFID tags according to claim 1, characterized in that the radiation layers (5) of the first (2) and second (3) substrates are connected by a connecting portion (16), and when the first (2) and second (3) substrates are unfolded and laid flat, the connecting portion (16) is folded into a receiving groove (15) formed on the first substrate (2).
7. An antenna module of the RFID electronic tag type according to claim 1, wherein the ground layer includes a first ground layer (7) and a second ground layer (8), wherein the first ground layer (7) is mounted on a side surface of the first substrate (2) and connected to the pin (6) on the side of the RFID chip (4), and the second ground layer (8) is mounted on a side surface of the second substrate (3), and when the first substrate (2) and the second substrate (3) are folded, the first ground layer (7) and the second ground layer (8) are connected in contact.
8. An antenna module of the RFID tag type as claimed in claim 7, characterized in that the second ground plane (8) has an insulating portion (11) with the radiation layer (5) of the second substrate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248978.4A CN114335987B (en) | 2022-03-15 | 2022-03-15 | Antenna module with RFID electronic tag formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248978.4A CN114335987B (en) | 2022-03-15 | 2022-03-15 | Antenna module with RFID electronic tag formula |
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| CN114335987A true CN114335987A (en) | 2022-04-12 |
| CN114335987B CN114335987B (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN1818936A (en) * | 2004-11-25 | 2006-08-16 | 森泰有限公司 | Radio frequency identification system |
| JP2008042379A (en) * | 2006-08-03 | 2008-02-21 | Toppan Printing Co Ltd | Wireless tag and flexible circuit board therefor |
| CN102243722A (en) * | 2010-05-14 | 2011-11-16 | 株式会社村田制作所 | Wireless IC Device |
| CN102386475A (en) * | 2010-08-31 | 2012-03-21 | 太盟光电科技股份有限公司 | Radio frequency identification device (RFID) electronic tag type panel antenna |
| JP2012253699A (en) * | 2011-06-07 | 2012-12-20 | Murata Mfg Co Ltd | Wireless communication device, its manufacturing method, and metal article with wireless communication device |
| CN103026551A (en) * | 2010-09-14 | 2013-04-03 | 株式会社村田制作所 | Reader/writer antenna module and antenna device |
| TW201820208A (en) * | 2016-11-28 | 2018-06-01 | 創新聯合科技股份有限公司 | Miniaturized anti-metal electronic tag with long read distance for achieving the effect of resisting metal interference and providing long read distance, with a convenient usage condition that is simple and miniaturized without occupying much space |
| WO2021189228A1 (en) * | 2020-03-24 | 2021-09-30 | Confidex Oy | Rfid tag |
-
2022
- 2022-03-15 CN CN202210248978.4A patent/CN114335987B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818936A (en) * | 2004-11-25 | 2006-08-16 | 森泰有限公司 | Radio frequency identification system |
| JP2008042379A (en) * | 2006-08-03 | 2008-02-21 | Toppan Printing Co Ltd | Wireless tag and flexible circuit board therefor |
| CN102243722A (en) * | 2010-05-14 | 2011-11-16 | 株式会社村田制作所 | Wireless IC Device |
| CN102386475A (en) * | 2010-08-31 | 2012-03-21 | 太盟光电科技股份有限公司 | Radio frequency identification device (RFID) electronic tag type panel antenna |
| CN103026551A (en) * | 2010-09-14 | 2013-04-03 | 株式会社村田制作所 | Reader/writer antenna module and antenna device |
| JP2012253699A (en) * | 2011-06-07 | 2012-12-20 | Murata Mfg Co Ltd | Wireless communication device, its manufacturing method, and metal article with wireless communication device |
| TW201820208A (en) * | 2016-11-28 | 2018-06-01 | 創新聯合科技股份有限公司 | Miniaturized anti-metal electronic tag with long read distance for achieving the effect of resisting metal interference and providing long read distance, with a convenient usage condition that is simple and miniaturized without occupying much space |
| WO2021189228A1 (en) * | 2020-03-24 | 2021-09-30 | Confidex Oy | Rfid tag |
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| CN114335987B (en) | 2022-06-07 |
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