CN112787095B - Integrated antenna, manufacturing method thereof and integrated electronic device - Google Patents
Integrated antenna, manufacturing method thereof and integrated electronic device Download PDFInfo
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- CN112787095B CN112787095B CN202110076872.6A CN202110076872A CN112787095B CN 112787095 B CN112787095 B CN 112787095B CN 202110076872 A CN202110076872 A CN 202110076872A CN 112787095 B CN112787095 B CN 112787095B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 239000010409 thin film Substances 0.000 claims abstract description 124
- 239000000758 substrate Substances 0.000 claims abstract description 96
- 238000007639 printing Methods 0.000 claims abstract description 37
- 239000010408 film Substances 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 31
- 238000005516 engineering process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention discloses an integrated antenna, which comprises a flexible substrate, a radio frequency antenna, a thin film battery and a power supply electrode, wherein the flexible substrate is arranged on the radio frequency antenna; the radio frequency antenna comprises an antenna coil and an antenna conductive bridge; the antenna conductive bridge is connected with two ends of the antenna coil, so that the antenna coil forms a closed loop with only one group of positive and negative ports; the thin film battery is connected with the power supply electrode in a printing way, and the tab of the thin film battery is electrically connected with the power supply electrode; the thin film battery is arranged on the flexible substrate in a printing mode and is arranged in an insulating mode with the radio frequency antenna. According to the invention, the lugs of the thin film battery are directly printed on the power supply electrode, so that the connection stability is greatly improved, good electrical connection is realized, and the working stability of the integrated antenna is increased; in addition, the production of the integrated antenna avoids the separate production of different parts, and improves the production efficiency of the integrated antenna. The invention also provides a manufacturing method of the integrated antenna with the advantages and an integrated electronic device.
Description
Technical Field
The present invention relates to the field of integrated electronics, and in particular, to an integrated antenna, a method of manufacturing the same, and an integrated electronic device.
Background
With the rise of the internet of things, the radio frequency identification technology is widely applied as a basic technology thereof. Therefore, how to manufacture low-cost rfid tags in high yield becomes important. Compared with a passive radio frequency identification tag, the active or semi-active radio frequency identification tag has longer read-write distance and more sensitive response due to the fact that the active or semi-active radio frequency identification tag is activated by an external power supply or an additional detection function is realized. After integrating the corresponding sensor (e.g. thermal, mechanical) in the active or semi-active tag, the tag may further perform the function of recording and monitoring the corresponding sensing parameters, wherein an important structure is the integration of the antenna component and the power supply component.
However, the antenna components (including chips) and power components in most integrated antennas (active or semi-active radio frequency identification tags) today are not produced as a unitary product. In the actual production process, the radio frequency antenna and the thin film battery are often electrically connected through bonding or welding of conductive adhesive. The connection mode is low in working efficiency, long in time consumption, and capable of achieving connection failure risk, and the service life of the integrated antenna is greatly reduced.
Therefore, how to find a method for enhancing the connection stability between the components in the integrated antenna, improving the service life and the service stability of the device, and improving the production efficiency at the same time is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an integrated antenna, a manufacturing method thereof and an integrated electronic device, and aims to solve the problems of poor connection stability, short service life and low production efficiency of the internal structure of the integrated antenna in the prior art, which are to be solved by the technical skill in the art.
In order to solve the technical problems, the invention provides an integrated antenna, which comprises a flexible substrate, a radio frequency antenna, a thin film battery and a power supply electrode;
the radio frequency antenna comprises an antenna coil and an antenna conductive bridge;
the antenna conductive bridge is connected with two ends of the antenna coil, so that the antenna coil forms a closed loop with only one group of positive and negative ports;
the thin film battery is connected with the power supply electrode in a printing way, and the tab of the thin film battery is electrically connected with the power supply electrode;
the thin film battery is arranged on the flexible substrate in a printing mode and is arranged in an insulating mode with the radio frequency antenna.
Optionally, in the integrated antenna, the thin film battery and the antenna coil are respectively disposed at two sides of the flexible substrate;
the power supply electrode comprises a front electrode and a back electrode, and the front electrode and the antenna coil are coplanar;
the back electrode is coplanar with the thin film battery and is electrically connected with the thin film battery;
the front electrode is electrically connected with the back electrode.
Optionally, in the integrated antenna, the thin film battery and the antenna coil are disposed on the same side of the flexible substrate;
and a battery area corresponding to the thin film battery on the flexible substrate is not overlapped with an antenna area corresponding to the radio frequency antenna on the flexible substrate.
Optionally, in the integrated antenna, the thin film battery and the antenna coil are disposed on the same side of the flexible substrate;
the corresponding battery area of the thin film battery on the flexible substrate is overlapped with the corresponding antenna area of the radio frequency antenna on the flexible substrate;
an insulating layer is arranged between the thin film battery and the radio frequency antenna.
Optionally, in the integrated antenna, the integrated antenna includes a thin film battery, an insulating layer and an antenna coil sequentially from the flexible substrate outwards.
A method of manufacturing an integrated antenna, comprising:
providing a flexible substrate;
printing and preparing a thin film battery, a radio frequency antenna and a power supply electrode on the flexible substrate to obtain an integrated precursor; the radio frequency antenna comprises an antenna coil and an antenna conductive bridge; the antenna conductive bridge is connected with the two ends of the antenna coil, and the thin film battery and the radio frequency antenna are arranged in an insulating way; the thin film battery is arranged in an insulating way with the radio frequency antenna.
Optionally, in the method for manufacturing an integrated antenna, the printing and preparing a thin film battery, a radio frequency antenna and a power supply electrode on the flexible substrate includes:
printing the thin film battery on the flexible substrate to obtain a battery thin film;
and printing the radio frequency antenna and the power supply electrode on the battery film.
Optionally, in the method for manufacturing an integrated antenna, when the thin film battery includes a collector layer and the antenna conductive bridge and the thin film battery are disposed on the same side of the flexible substrate, the antenna conductive bridge and the collector layer are disposed on corresponding regions on the flexible substrate by single printing.
Optionally, in the method for manufacturing an integrated antenna, when the antenna conductive bridge, the antenna coil and the thin film battery are disposed on the same side of the flexible substrate, an antenna insulating bridge is disposed between the antenna conductive bridge and the antenna coil, an insulating layer is disposed between the thin film battery and the radio frequency antenna, and the antenna insulating bridge and the insulating layer are disposed in corresponding areas on the flexible substrate through single connection.
An integrated electronic device comprising a processor and an integrated antenna as claimed in any one of the above;
the processor is electrically connected with the power supply electrode; the processor is in signal connection with the radio frequency antenna.
The integrated antenna provided by the invention comprises a flexible substrate, a radio frequency antenna, a thin film battery and a power supply electrode; the radio frequency antenna comprises an antenna coil and an antenna conductive bridge; the antenna conductive bridge is connected with two ends of the antenna coil, so that the antenna coil forms a closed loop with only one group of positive and negative ports; the thin film battery is connected with the power supply electrode in a printing way, and the tab of the thin film battery is electrically connected with the power supply electrode; the thin film battery is arranged on the flexible substrate in a printing mode and is arranged in an insulating mode with the radio frequency antenna.
According to the invention, the thin film battery is directly printed on the flexible substrate, so that the thin film battery in a finished product is comprehensively attached to the flexible substrate and is connected with the power supply electrode in a printing way, and the tab of the thin film battery is directly printed on the power supply electrode, so that the connection stability is greatly improved, good electric connection is realized, and the working stability of the integrated antenna is improved compared with other battery-antenna connection technologies in the prior art; on the other hand, the battery is directly printed on the flexible substrate through a printing process, and the existing technology of arranging the processor and the radio frequency antenna on the flexible substrate is combined, so that the production of the integrated antenna avoids the process of separately producing different parts and then splicing, and the production efficiency of the integrated antenna is greatly improved. The invention also provides a manufacturing method of the integrated antenna with the beneficial effects and an integrated electronic device.
Drawings
For a clearer description of embodiments of the invention or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 to fig. 6 are schematic structural diagrams of various embodiments of an integrated antenna according to the present invention;
fig. 7 is a schematic flow chart of a specific embodiment of a method for manufacturing an integrated antenna according to the present invention;
fig. 8 is a schematic structural diagram of another embodiment of an integrated antenna according to the present invention;
fig. 9 is a schematic structural diagram of a radio frequency antenna according to an embodiment of the integrated antenna provided by the present invention.
Detailed Description
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The core of the present invention is to provide an integrated antenna, a schematic structural diagram of one embodiment of which is shown in fig. 1, which is referred to as embodiment one, and includes a flexible substrate 10, a radio frequency antenna 20, a thin film battery 30 and a power supply electrode 40;
the radio frequency antenna 20 comprises an antenna coil 21 and an antenna conductive bridge 22;
the antenna conductive bridge 22 is connected to two ends of the antenna coil 21, so that the antenna coil 21 forms a closed loop with only one group of positive and negative ports;
the thin film battery 30 is connected with the power supply electrode 40 in a printing way, and the tab of the thin film battery 30 is electrically connected with the power supply electrode 40;
the thin film battery 30 is printed on the flexible substrate 10 and is insulated from the rf antenna 20.
The thin film battery 30 is electrically connected to the power supply electrode 40 via a tab of the battery.
As a specific embodiment, the thin film battery 30 and the antenna coil 21 are disposed on the same side of the flexible substrate 10;
the corresponding battery area of the thin film battery 30 on the flexible substrate 10 does not overlap with the corresponding antenna area of the radio frequency antenna 20 on the flexible substrate 10.
In the above embodiment, the thin film battery 30 is disposed at a position where the thin film battery 30 is not in contact with the rf antenna 20, so that there is no problem of short circuit caused by contact between the two, refer to fig. 2 and fig. 3 (the antenna conductive bridge 22 in fig. 2 is disposed at the other side of the flexible substrate 10, not shown in the drawings), wherein the power supply electrode 40 in fig. 2 is disposed below the thin film battery 30, and the power supply electrode 40 in fig. 3 is disposed above the thin film battery 30, and of course, the thin film battery 30 in fig. 2 and 3 is disposed in the antenna coil 21, and can be selected by itself according to practical needs in use.
In addition to the above, in order to expand the application range and improve the flexibility of the arrangement, the battery area corresponding to the thin film battery 30 on the flexible substrate 10 may overlap with the antenna area corresponding to the rf antenna 20 on the flexible substrate 10, and in this case, an insulating layer 60 is disposed between the thin film battery 30 and the rf antenna 20.
The exploded view of the structure of the above embodiment is shown in fig. 1, the top view is shown in fig. 4, the printed thin film battery 30 area overlaps the antenna area, the thin film battery 30 and the rf antenna 20 are separated by the insulating layer 60, where the insulating layer 60 may cover only the overlapping area of the thin film battery 30 and the rf antenna 20, or may further cover the electrically active projection area of the thin film battery 30. Further, the insulating layer 60 and the antenna insulating bridge 23 are made of the same material, and are printed on the corresponding areas by a printing process. Further, the insulating layer 60 and the antenna insulating bridge 23 may be laminated to form a film of insulating material with a corresponding pattern on the rf antenna 20 or the flexible substrate 10.
Referring to fig. 9, fig. 9 is a schematic structural diagram of the rf antenna 20, and it should be noted that the antenna conductive bridge 22 and the antenna coil 21 in fig. 9 are disposed on the same side of the flexible substrate 10, and the antenna insulating bridge 23 is not required when disposed on different sides.
In addition, when the antenna conductive bridge 22 and the antenna coil 21 are disposed on the same side of the flexible substrate 10, the insulating layer 60 and the antenna insulating bridge 23 are formed as an integral structural layer with the insulating layer 60, that is, the insulating layer 60 and the antenna insulating bridge 23 are printed simultaneously; in addition, when the thin film battery 30 needs to have the collector layer 31 added, the collector layer 31 may be printed simultaneously with the antenna conductive bridge 22.
As a specific implementation manner, the integrated antenna includes the thin film battery 30, the insulating layer 60 and the antenna coil 21 from the flexible substrate 10 to the outside, that is, the thin film battery 30 is set first, and then other structures are set, because the battery involves the steps of repeated heating and drying of different electrode material layers in the processing process, if other structures are set first, and then the thin film battery 30 is set, other structures in the integrated antenna may be damaged in the process of setting the battery, and finally the yield is reduced.
The integrated antenna provided by the invention comprises a flexible substrate 10, a radio frequency antenna 20, a thin film battery 30 and a power supply electrode 40; the radio frequency antenna 20 comprises an antenna coil 21 and an antenna conductive bridge 22; the antenna conductive bridge 22 is connected to two ends of the antenna coil 21, so that the antenna coil 21 forms a closed loop with only one group of positive and negative ports; the thin film battery 30 is connected with the power supply electrode 40 in a printing way, and the tab of the thin film battery 30 is electrically connected with the power supply electrode 40; the thin film battery 30 is printed on the flexible substrate 10 and is insulated from the rf antenna 20. According to the invention, the thin film battery 30 is directly printed on the flexible substrate 10, so that the thin film battery 30 in a finished product is fully attached to the flexible substrate 10 and is connected with the power supply electrode 40 in a printing way, and the tab of the thin film battery 30 is directly printed on the power supply electrode 40, so that the connection stability is greatly improved, good electric connection is realized, and the working stability of an integrated antenna is increased compared with other battery-antenna connection technologies in the prior art; on the other hand, the battery is directly printed on the flexible substrate 10 through a printing process, and the existing technology of arranging the processor 50 and the radio frequency antenna 20 on the flexible substrate 10 is combined, so that the production of the integrated antenna avoids the process of separately producing different parts and splicing the parts, and the production efficiency of the integrated antenna is greatly improved.
On the basis of the difference from the first embodiment, the second embodiment provides another positional relationship between the antenna coil 21 and the thin film battery 30, and the schematic structural diagram is shown in fig. 5, and the second embodiment includes a flexible substrate 10, a radio frequency antenna 20, a thin film battery 30, and a power supply electrode 40;
the radio frequency antenna 20 comprises an antenna coil 21 and an antenna conductive bridge 22;
the antenna conductive bridge 22 is connected to two ends of the antenna coil 21, so that the antenna coil 21 forms a closed loop with only one group of positive and negative ports;
the thin film battery 30 is connected with the power supply electrode 40 in a printing way, and the tab of the thin film battery 30 is electrically connected with the power supply electrode 40;
the thin film battery 30 is printed on the flexible substrate 10 and is insulated from the radio frequency antenna 20;
the thin film battery 30 and the antenna coil 21 are respectively disposed at two sides of the flexible substrate 10;
the power supply electrode 40 includes a front electrode 41 and a back electrode 42, the front electrode 41 being coplanar with the antenna coil 21;
the back electrode 42 is coplanar with the thin film battery 30 and electrically connected with the thin film battery 30;
the front electrode 41 is electrically connected to the back electrode 42;
the front electrode 41 is connected to the back electrode 42 by piercing.
Of course, in actual production, other methods may be used to electrically connect the front electrode 41 and the back electrode 42, for example, holes are cut in the corresponding positions of the flexible film, and the front electrode 41 and the back electrode 42 are contacted through the holes, so as to realize electrical connection; or the flexible substrate 10 is arranged at the electrode as a laminated board with a metal layer in the middle, the electric connection of the composite structure is realized through the middle metal layer, or the electric connection is realized through stapling together, and the like, and the flexible substrate can be selected according to the actual situation.
In the above antenna structure, the flexible substrate 10 acts as an insulating layer 60 to separate the thin film battery 30 from the antenna coil 21, so that the short circuit between the thin film battery 30 and the antenna coil 21 is avoided, and the controller loses control over the radio frequency antenna 20, so that the device is disabled. And the power supply electrodes 40 which are divided into the front surface and the back surface are communicated with the circuits on the two sides of the flexible substrate 10, so that the safety is improved, the falling off is not easy, and the working stability is improved.
Fig. 5 is an exploded view of the present embodiment, and fig. 6 is a plan view, in which the upward surface is the surface on which the antenna coil 21 is located, so that the structure of the thin film battery 30 and the antenna conductive bridge 22 on the back surface is not visible in the plan view.
As a preferred embodiment, the thin film battery 30 includes a collector layer 31. Some cells have higher internal resistance, so that the collector layer 31 needs to be further printed to reduce internal resistance, and the collector layer 31 is usually a conductive paste layer, such as a carbon paste layer, a silver paste layer, and the like.
It should be noted that when the antenna conductive bridge 22 and the antenna coil 21 are disposed on the same side of the flexible substrate 10;
an antenna insulating bridge 23 is provided between the antenna conductive bridge 22 and the antenna coil 21.
Since the antenna coil 21 is generally annular, and two ends are located on the inner side and the outer side of the annular, the two ends must be electrically connected to each other so as to span the annular shape, and as shown in fig. 5, the two ends of the conductive bridge are connected to the two ends of the antenna coil 21 by the piercing method, and as described above, the conductive bridge 22 and the antenna coil 21 may be disposed on the same side of the flexible substrate 10, and in order to avoid shorting the antenna coil 21 by the conductive bridge 22, the insulating layer 60 between the conductive bridge 22 and the antenna coil 21 needs to be additionally provided between the conductive bridge 23, i.e., between the conductive bridge 22 and the antenna coil 21, as shown in fig. 3.
In addition, the present invention also provides a method for manufacturing an integrated antenna, the flow chart of which is shown in fig. 7, and the method is called as a third embodiment, and includes:
s1: a flexible substrate 10 is provided.
S2: printing and preparing a thin film battery 30, a radio frequency antenna 20 and a power supply electrode 40 on the flexible substrate 10 to obtain an integrated front object; wherein the rf antenna 20 includes an antenna coil 21 and an antenna conductive bridge 22; the antenna conductive bridge 22 is connected with the two ends of the antenna coil 21, and the thin film battery 30 is arranged in an insulating manner with the radio frequency antenna 20; the thin film battery 30 is insulated from the rf antenna 20.
The printing and preparing the thin film battery 30, the radio frequency antenna 20 and the power supply electrode 40 on the flexible substrate 10 includes:
printing the thin film battery 30 on the flexible substrate 10 to obtain a battery thin film;
the rf antenna 20 and the power supply electrode 40 are printed on the battery film.
In other words, the thin film battery 30 is disposed on the flexible substrate 10, and other structures are disposed after the battery is disposed, and since the battery involves steps of repeated heating and drying during the processing, if other structures are disposed before the thin film battery 30 is disposed, other structures in the integrated antenna may be damaged during the process of disposing the battery, which eventually results in a reduced yield. An explosion structure diagram of the integrated antenna produced by the technical scheme is shown in fig. 8.
As a preferred embodiment, when the thin film battery 30 includes the collector layer 31 and the antenna conductive bridge 22 and the thin film battery 30 are disposed on the same side of the flexible substrate 10, the antenna conductive bridge 22 and the collector layer 31 are disposed on the corresponding region on the flexible substrate 10 by a single printing.
As a preferred embodiment, when the antenna conductive bridge 22, the antenna coil 21 and the thin film battery 30 are disposed on the same side of the flexible substrate 10, an antenna insulating bridge 23 is disposed between the antenna conductive bridge 22 and the antenna coil 21, an insulating layer 60 is disposed between the thin film battery 30 and the radio frequency antenna 20, and the antenna insulating bridge 23 and the insulating layer 60 are disposed on corresponding areas on the flexible substrate 10 by a single connection.
The antenna insulating bridge 23 and the insulating layer 60 may be disposed in the corresponding areas by printing or lamination, however, other methods may be used according to practical situations.
In the above two solutions, by simultaneously disposing the antenna conductive bridge 22 and the collector layer 31, or simultaneously disposing the antenna insulating bridge 23 and the insulating layer 60, the manufacturing process of the integrated antenna is simplified, the production efficiency is greatly improved,
the invention provides a manufacturing method of an integrated antenna, which comprises the steps of arranging a flexible substrate 10; printing and preparing a thin film battery 30, a radio frequency antenna 20 and a power supply electrode 40 on the flexible substrate 10 to obtain an integrated front object; wherein the rf antenna 20 includes an antenna coil 21 and an antenna conductive bridge 22; the antenna conductive bridge 22 is connected with the two ends of the antenna coil 21, and the thin film battery 30 is arranged in an insulating manner with the radio frequency antenna 20; the thin film battery 30 is insulated from the rf antenna 20. According to the invention, the thin film battery 30 is directly printed on the flexible substrate 10, so that the thin film battery 30 in a finished product is fully attached to the flexible substrate 10 and is connected with the power supply electrode 40 in a printing way, and the tab of the thin film battery 30 is directly printed on the power supply electrode 40, so that the connection stability is greatly improved, good electric connection is realized, and the working stability of an integrated antenna is increased compared with other battery-antenna connection technologies in the prior art; on the other hand, the battery is directly printed on the flexible substrate 10 through a printing process, and the existing technology of arranging the processor 50 and the radio frequency antenna 20 on the flexible substrate 10 is combined, so that the production of the integrated antenna avoids the process of separately producing different parts and splicing the parts, and the production efficiency of the integrated antenna is greatly improved.
An integrated electronic device comprising a processor 50 and an integrated antenna as described in any of the above; the processor 50 is electrically connected with the power supply electrode 40; the processor 50 is in signal communication with the radio frequency antenna 20. The integrated antenna provided by the invention comprises a flexible substrate 10, a radio frequency antenna 20, a thin film battery 30 and a power supply electrode 40; the radio frequency antenna 20 comprises an antenna coil 21 and an antenna conductive bridge 22; the antenna conductive bridge 22 is connected to two ends of the antenna coil 21, so that the antenna coil 21 forms a closed loop with only one group of positive and negative ports; the thin film battery 30 is connected with the power supply electrode 40 in a printing way, and the tab of the thin film battery 30 is electrically connected with the power supply electrode 40; the thin film battery 30 is printed on the flexible substrate 10 and is insulated from the rf antenna 20. According to the invention, the thin film battery 30 is directly printed on the flexible substrate 10, so that the thin film battery 30 in a finished product is fully attached to the flexible substrate 10 and is connected with the power supply electrode 40 in a printing way, and the tab of the thin film battery 30 is directly printed on the power supply electrode 40, so that the connection stability is greatly improved, good electric connection is realized, and the working stability of an integrated antenna is increased compared with other battery-antenna connection technologies in the prior art; on the other hand, the battery is directly printed on the flexible substrate 10 through a printing process, and the existing technology of arranging the processor 50 and the radio frequency antenna 20 on the flexible substrate 10 is combined, so that the production of the integrated antenna avoids the process of separately producing different parts and splicing the parts, and the production efficiency of the integrated antenna is greatly improved.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
It should be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The integrated antenna, the manufacturing method thereof and the integrated electronic device provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (8)
1. An integrated antenna is characterized by comprising a flexible substrate, a radio frequency antenna, a thin film battery and a power supply electrode;
the radio frequency antenna comprises an antenna coil and an antenna conductive bridge;
the antenna conductive bridge is connected with two ends of the antenna coil, so that the antenna coil forms a closed loop with only one group of positive and negative ports;
the thin film battery is connected with the power supply electrode in a printing way, and the tab of the thin film battery is electrically connected with the power supply electrode;
the thin film battery is arranged on the flexible substrate in a printing way and is insulated from the radio frequency antenna;
the antenna conductive bridge, the antenna coil and the thin film battery are arranged on the same side of the flexible substrate;
the corresponding battery area of the thin film battery on the flexible substrate is overlapped with the corresponding antenna area of the radio frequency antenna on the flexible substrate;
an insulating layer is arranged between the film battery and the radio frequency antenna, an antenna insulating bridge is arranged between the antenna conductive bridge and the antenna coil, and the antenna insulating bridge and the insulating layer are arranged in a corresponding area on the flexible substrate through single connection;
the insulating layer and the antenna insulating bridge are simultaneously printed layers; the collector layer is also a layer printed simultaneously with the antenna conductive bridge.
2. The integrated antenna of claim 1, wherein the thin film battery and the antenna coil are disposed on both sides of the flexible substrate, respectively;
the power supply electrode comprises a front electrode and a back electrode, and the front electrode and the antenna coil are coplanar;
the back electrode is coplanar with the thin film battery and is electrically connected with the thin film battery;
the front electrode is electrically connected with the back electrode.
3. The integrated antenna of claim 1, wherein the thin film battery and the antenna coil are disposed on the same side of the flexible substrate;
and a battery area corresponding to the thin film battery on the flexible substrate is not overlapped with an antenna area corresponding to the radio frequency antenna on the flexible substrate.
4. The integrated antenna of claim 1, wherein the integrated antenna comprises a thin film battery, an insulating layer, and an antenna coil in order from the flexible substrate.
5. A method of manufacturing an integrated antenna, comprising:
providing a flexible substrate;
printing and preparing a thin film battery, a radio frequency antenna and a power supply electrode on the flexible substrate to obtain an integrated precursor; the radio frequency antenna comprises an antenna coil and an antenna conductive bridge; the antenna conductive bridge is connected with the two ends of the antenna coil, and the thin film battery and the radio frequency antenna are arranged in an insulating way; the thin film battery is arranged in an insulating way with the radio frequency antenna;
the antenna conductive bridge, the antenna coil and the thin film battery are arranged on the same side of the flexible substrate;
the corresponding battery area of the thin film battery on the flexible substrate is overlapped with the corresponding antenna area of the radio frequency antenna on the flexible substrate;
an insulating layer is arranged between the film battery and the radio frequency antenna, an antenna insulating bridge is arranged between the antenna conductive bridge and the antenna coil, and the antenna insulating bridge and the insulating layer are arranged in a corresponding area on the flexible substrate through single connection;
the insulating layer and the antenna insulating bridge are simultaneously printed layers; the collector layer is also a layer printed simultaneously with the antenna conductive bridge.
6. The method of manufacturing an integrated antenna according to claim 5, wherein printing and preparing a thin film battery, a radio frequency antenna, and a power supply electrode on the flexible substrate comprises:
printing the thin film battery on the flexible substrate to obtain a battery thin film;
and printing the radio frequency antenna and the power supply electrode on the battery film.
7. The method of manufacturing an integrated antenna according to claim 5, wherein when the thin film battery includes a collector layer and the antenna conductive bridge and the thin film battery are disposed on the same side of the flexible substrate, the antenna conductive bridge and the collector layer are disposed on corresponding regions on the flexible substrate by a single printing.
8. An integrated electronic device comprising a processor and an integrated antenna as claimed in any one of claims 1 to 4;
the processor is electrically connected with the power supply electrode; the processor is in signal connection with the radio frequency antenna.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110076872.6A CN112787095B (en) | 2021-01-20 | 2021-01-20 | Integrated antenna, manufacturing method thereof and integrated electronic device |
| PCT/CN2021/133455 WO2022156359A1 (en) | 2021-01-20 | 2021-11-26 | Integrated antenna and manufacturing method therefor, and integrated electronic device |
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| WO2022156359A1 (en) | 2022-07-28 |
| CN112787095A (en) | 2021-05-11 |
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