Transparent antenna, electronic equipment and feeding method of transparent antenna

Abstract

The invention provides a transparent antenna, electronic equipment and a feeding method of the transparent antenna. The feeding method of the transparent antenna comprises the following steps: connecting one end of the FPC module to the transparent base film through an anisotropic conductive adhesive; welding a feeder line to one end, far away from the transparent base film, of the FPC module, so that the transparent base film is communicated with the feeder line through the FPC module; one part of the antenna connecting part is bent, so that the surface of the back glue connecting part is attached to the surface of the side plate, and at the moment, stress formed by the antenna connecting part at the bent position is conducted to the side, away from the antenna connecting part, of the back glue connecting part. The projection of the antenna connecting part and the projection of the back adhesive connecting part of the transparent antenna on the transparent base film are perpendicular to each other. According to the transparent antenna, the antenna connecting part is connected to the binding area, the feeder is welded to the feeder connecting part, and the back adhesive connecting part is fixed on the side plate of the casing, so that the transparent base film and the antenna connecting part are prevented from being broken at the anisotropic conductive adhesive binding position, and the feeding method of the transparent antenna is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transparent antennas, and in particular to a transparent antenna, an electronic device and a feeding method for the transparent antenna. Background Art

[0002] Transparent antennas have transparency and good optical properties, which allows them to be more flexibly arranged on various electronic devices without having to worry about being visible to the user's naked eye. Therefore, transparent antennas have broad application prospects.

[0003] Traditional antennas are usually composed of a feed line and an opaque base film. The opaque base film can be an opaque material that is resistant to bending and high temperature, such as PI (Polyimide) and LCP (Liquid Crystal Polymer). Therefore, the feeding method of the traditional antenna can be direct solder paste welding (that is, the feed line and the opaque base film are directly welded together to achieve feeding connection between the two).

[0004] A transparent antenna is usually composed of a feeder and a transparent base film, and the transparent base film is made of optical grade transparent materials such as PET (Polyethylene Terephthalate) and COP (Cyclic Olefin Polymer).

[0005] However, optical-grade transparent materials such as PET and COP have a low temperature resistance of only over 100 degrees Celsius, while welding generally exceeds 200 degrees Celsius. Therefore, transparent antennas cannot use a direct solder paste welding feeding method (that is, the feed line cannot be directly welded to the transparent base film to achieve feeding connectivity between the two).

[0006] In the prior art, the conventional transparent antenna uses an FPC module (Flexible Printed Circuit) as a connection medium between the transparent base film and the feeder; that is, one end of the FPC module is connected to the transparent base film through an ACF (Anisotropic Conductive Film), and then the feeder is directly welded to the other end of the FPC module, thereby achieving the connection between the transparent base film and the feeder; at this time, when the transmission end of the entire conventional transparent antenna is bent in an electronic device, it is easy to cause the transparent base film and the FPC module to be cracked at the ACF binding position until they break, thereby affecting the antenna performance of the conventional transparent antenna. Summary of the invention

[0007] The transparent antenna, electronic device and feeding method of the transparent antenna provided by the present invention are intended to solve at least part of the defects of the existing feeding method of the transparent antenna.

[0008] In a first aspect, the present invention provides a transparent antenna. The transparent antenna is applied to an electronic device having a housing, and the transparent antenna comprises:

[0009] A transparent base film; a preset binding area is provided at the edge of the transparent base film, and the transparent base film is attached to a portion of the housing;

[0010] FPC module; the FPC module at least comprises an antenna connection portion, an adhesive connection portion and a feeder connection portion; the projections of the antenna connection portion and the adhesive connection portion on the transparent base film are perpendicular to each other;

[0011] Anisotropic conductive adhesive; at least a portion of the antenna connection portion is fixedly connected to the binding area through the anisotropic conductive adhesive;

[0012] One end of the antenna connection part away from the binding area is connected to one end of the adhesive connection part; the other end of the adhesive connection part is connected to the feeder connection part;

[0013] The adhesive connection portion is provided with adhesive, and the adhesive connection portion is attached to at least a portion of the housing through the adhesive; a preset welding area is provided at one end of the feeder connection portion away from the adhesive connection portion;

[0014] Feeder; the feeder can be welded to the welding area so that the transparent base film is connected to the feeder through the FPC module.

[0015] In some embodiments, the antenna connection portion extends along a first direction, the adhesive connection portion extends along a second direction, and the feeder connection portion extends along a third direction;

[0016] The first direction, the second direction and the third direction are orthogonal to each other, and the third direction is perpendicular to the surface of the transparent base film.

[0017] In some embodiments, the binding area has a shape and a size that matches a projection of the antenna connecting portion on the transparent base film.

[0018] In some embodiments, the impedance matching of the FPC module is 50Ω.

[0019] In some embodiments, the anisotropic conductive adhesive is disposed between the antenna connection portion and the binding area, and a preset binding temperature and a preset binding pressure are applied to the anisotropic conductive adhesive so that at least a portion of the antenna connection portion is fixedly connected to the binding area;

[0020] The feeder is welded to an end of the feeder connection portion away from the adhesive connection portion at a preset welding temperature.

[0021] In some embodiments, the binding temperature is matched to 80°C to 300°C, the binding pressure is matched to 0.1 MPa to 5 MPa, and the welding temperature is matched to 220°C to 350°C.

[0022] In a second aspect, the present invention provides an electronic device. The electronic device at least comprises:

[0023] A housing; a receiving cavity is formed inside the housing;

[0024] At least a portion of the transparent antenna is disposed in the accommodating cavity.

[0025] In some embodiments, the housing comprises at least:

[0026] A bottom plate and a plurality of side plates; the plurality of side plates all protrude from the surface of the bottom plate and are arranged along the circumferential edge of the bottom plate to enclose and form the accommodating cavity.

[0027] In some embodiments, the transparent base film of the transparent antenna is attached to the surface of the bottom plate and is located in the accommodating cavity;

[0028] The surface of the antenna connecting part of the FPC module of the transparent antenna is parallel to the surface of the bottom plate, the surface of the adhesive back connecting part of the FPC module is in contact with the surface of the side panels of the binding area close to the transparent base film among several side panels, and the antenna connecting part and the adhesive back connecting part are both located in the accommodating cavity.

[0029] In a third aspect, the present invention provides a feeding method for a transparent antenna. The feeding method for a transparent antenna comprises:

[0030] Connecting one end of the FPC module of the transparent antenna to the transparent base film of the transparent antenna through the anisotropic conductive adhesive of the transparent antenna;

[0031] Welding the feeder of the transparent antenna to an end of the FPC module away from the transparent base film, so that the transparent base film is connected to the feeder through the FPC module;

[0032] Bend a portion of the antenna connection portion of the FPC module so that the surface of the adhesive connection portion of the FPC module fits with the surface of the side panel of the casing of the electronic device. At this time, the stress formed at the bending position of the antenna connection portion is transmitted to the side of the adhesive connection portion away from the antenna connection portion.

[0033] At least one beneficial effect of the transparent antenna, electronic device and feeding method of the transparent antenna provided by the embodiments of the present invention is: a novel transparent antenna suitable for electronic devices and a feeding method of the transparent antenna are proposed, the FPC module of the transparent antenna has a structural design of an antenna connecting part, a back adhesive connecting part and a feed line connecting part, and the projections of the antenna connecting part and the back adhesive connecting part on the transparent base film are perpendicular to each other; the antenna connecting part is connected to the binding area of ​​the transparent base film, and the feed line is welded to the feed line connecting part, and the back adhesive connecting part is fixed to the casing through the back adhesive, thereby improving the feeding method of the transparent antenna, and at the same time, it can avoid the transparent base film and the antenna connecting part from being broken or even ruptured at the binding position of the anisotropic conductive adhesive due to bending, thereby ensuring the antenna performance of the transparent antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent the same elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0035] Figure 1 A schematic diagram of the structure of a transparent base film provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of a cross-sectional stacking structure of a transparent antenna provided in an embodiment of the present invention;

[0037] Figure 3 A front view of a transparent base film bound FPC module provided by an embodiment of the present invention;

[0038] Figure 4 A rear view of a transparent base film-bound FPC module provided in an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the bonding between the transparent base film provided by an embodiment of the present invention and the housing after the FPC module is bound thereto;

[0040] Figure 6 Front view of a conventional FPC module bound to a conventional transparent base film;

[0041] Figure 7 Rear view of a conventional FPC module bound to a conventional transparent base film;

[0042] Figure 8 Schematic diagram of the bonding between the traditional transparent base film and the traditional FPC module and the traditional housing;

[0043] Fig. 9 A flow chart of a method for feeding a transparent antenna provided in an embodiment of the present invention.

[0044] Reference numerals:

[0045] 100, transparent antenna; 1001, first direction; 1002, second direction; 1003, third direction; 1, transparent base film; 101, binding area; 102, feeding point; 2, FPC module; 21, antenna connection part; 22, adhesive connection part; 23, feeder connection part; 221, adhesive; 3, anisotropic conductive adhesive; 4, feeder;

[0046] 200, housing; 2001, bottom plate; 2002, side plate; 2003, receiving chamber;

[0047] 300, traditional transparent base film; 3001, traditional binding area;

[0048] 400, conventional FPC module; 4001, conventional antenna connection portion; 4002, conventional feeder connection portion;

[0049] 500, traditional housing; 5001, traditional bottom panel; 5002, traditional side panel. DETAILED DESCRIPTION

[0050] The present invention is described in detail below in conjunction with specific embodiments. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope of the present invention and its application.

[0051] It should be noted that, unless otherwise clearly specified and limited, the orientations or positional relationships indicated by the terms "first direction", "second direction", "third direction", "circumferential direction", etc. used in this specification are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms such as "installation", "fitting", "connection" and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; "fixation" can be bolted, snap-fitted or glued; the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, the features defined as "first", "second" and "third" may explicitly or implicitly include one or more of the features; "multiple" or "several" means two or more; in addition, "and / or" includes any and all combinations of one or more related listed items; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] In this embodiment, the specific implementation of “the transparent antenna, the electronic device, and the feeding method of the transparent antenna” is not limited, and those skilled in the art may selectively use any appropriate implementation method according to actual needs.

[0054] Figure 1 A schematic structural diagram of a transparent base film provided in an embodiment of the present invention. Figure 2 A schematic diagram of a cross-sectional stacking structure of a transparent antenna provided in an embodiment of the present invention. Figure 3 A front view of a transparent base film-bound FPC module provided by an embodiment of the present invention. Figure 4 This is a rear view of a transparent base film-bound FPC module provided by an embodiment of the present invention. Figure 5 This is a schematic diagram of the bonding between the transparent base film provided by an embodiment of the present invention and the housing after the FPC module is bound.

[0055] See also Figure 1-Figure 5 The transparent antenna 100 is applied to an electronic device having a housing 200 (not shown in the figure), and the transparent antenna 100 includes: a transparent base film 1, an FPC module 2, an anisotropic conductive adhesive 3 and a feed line 4.

[0056] The material of the transparent base film 1 can be optical grade transparent materials such as PET and COP.

[0057] Anisotropic Conductive Film (ACF) is a special adhesive that conducts electricity in the Z direction (i.e., vertical direction) but does not conduct electricity in the X and Y directions (i.e., horizontal directions). This further explains that ACF can achieve electrical connection and physical fixation, simplify the manufacturing process, improve connection quality, and even adapt to the trend of fine pitch.

[0058] Specifically, ACF can achieve electrical connection between electronic components; in the Z direction (i.e., the vertical direction), the conductive particles in the ACF can form a conductive path, allowing current to flow in the Z direction (i.e., the vertical direction); this characteristic of ACF makes ACF particularly suitable for occasions requiring high-precision electrical connection (for example, the connection between a flexible printed circuit board and an integrated circuit).

[0059] In addition to its conductivity, ACF also has the function of gluing and fixing; ACF can achieve a firm, stable and reliable connection between electronic components; this fixing effect helps prevent electronic components from loosening or falling off under vibration or impact conditions.

[0060] Understandably, the use of ACF can simplify the manufacturing process; compared with traditional welding methods, ACF does not require high-temperature treatment, thereby reducing the risk of thermal stress and stress cracking, which makes ACF particularly suitable for the interconnection of heat-sensitive components, helping to reduce production costs and improve production efficiency.

[0061] It should be noted that ACF has high connection quality and can provide stable electrical and mechanical connections; ACF can ensure stable and reliable signal transmission between electronic components while providing sufficient mechanical strength.

[0062] It is further explained that with the development of electronic technology, the size of electronic components is getting smaller and smaller, and the pitch is getting narrower and narrower; ACF can adapt to this trend of fine pitch and provide high-precision electrical connection; this makes ACF widely used in high-end electronic devices (for example, smart phones and tablets).

[0063] In the preparation process of the transparent antenna 100 , a yellow light process is required to etch a preset functional circuit on the transparent base film 1 ; the functional circuit at least includes a radiation unit (not shown in the figure) and a feeding point 102 of the transparent antenna 100 .

[0064] The feeder is a transmission line that is connected to the above-mentioned feeding point and can transmit radio frequency energy; the feeder is responsible for efficiently and stably transmitting the signal received by the transparent base film to the receiving device, or transmitting the signal of the transmitting device to the transparent base film for transmission.

[0065] A preset binding area 101 is provided at the edge of the transparent base film 1 , and the transparent base film 1 is attached to a portion of the housing 200 .

[0066] The shape of the binding area 101 can be a square, a rectangle, or other irregular shapes; in short, the shape and size of the binding area 101 can be designed according to the shape and size of the antenna connecting portion 21.

[0067] In addition, the FPC module 2 at least includes: an antenna connection portion 21 , an adhesive connection portion 22 and a feeder connection portion 23 .

[0068] In addition, the projections of the antenna connection part 21 and the adhesive connection part 22 on the transparent base film 1 are perpendicular to each other; at least a part of the antenna connection part 21 is fixedly connected to the binding area 101 by the anisotropic conductive adhesive 3 .

[0069] There is a feeding point in the above-mentioned binding area, so at least a part of the antenna connecting part 21 is connected to the feeding point through the anisotropic conductive adhesive 3; since the anisotropic conductive adhesive 3 can conduct electricity in its thickness direction (the thickness direction can be understood as the direction perpendicular to the surface of the anisotropic conductive adhesive 3), but cannot conduct electricity in the direction parallel to the surface of the anisotropic conductive adhesive 3; therefore, when the antenna connecting part 21 is connected to the feeding point, the two can be connected to each other.

[0070] It should be noted that one end of the antenna connection part 21 away from the binding area 101 is connected to one end of the adhesive connection part 22 ; the other end of the adhesive connection part 22 is connected to the feeder connection part 23 .

[0071] It is understandable that the adhesive connection part 22 is provided with adhesive 221, and the adhesive connection part 22 is attached to at least a portion of the housing 200 through the adhesive 221; a preset welding area is provided at one end of the feeder connection part 23 away from the adhesive connection part 22.

[0072] To further illustrate, the feed line 4 can be welded to the welding area so that the transparent base film 1 is connected to the feed line through the FPC module 2 .

[0073] Figure 6 Front view of a conventional FPC module bonded to a conventional transparent base film. Figure 7 Rear view of a conventional FPC module bonded to a conventional transparent base film. Figure 8 Schematic diagram of the bonding between a traditional transparent base film and a traditional FPC module and a traditional casing.

[0074] like Figure 6-8As shown, a preset traditional binding area 3001 is provided on the traditional transparent base film 300, and one end of the traditional FPC module 400 is fixedly connected to the traditional binding area 3001 through ACF (Anisotropic Conductive Film), and the other end of the traditional FPC module 400 is fixedly connected to a traditional feeder (not shown in the figure) by welding, so that the traditional transparent base film 300 and the traditional feeder are connected; wherein, when the traditional transparent base film 300 is attached to the surface of the traditional bottom plate 5001 of the traditional housing 500, the traditional FPC module 400 needs to be bent, and at this time, the traditional FPC module 400 can form a traditional antenna connection part 4001 and a traditional feeder connection part 4002; specifically, the surface of the traditional antenna connection part 4001 is parallel to the surface of the traditional transparent base film 300, and the traditional feeder connection part The surface of 4002 is parallel to the surface of the traditional side panel 5002 and at the same time perpendicular to the surface of the traditional transparent base film 300; in addition, one end of the traditional antenna connection part 4001 is connected to the traditional binding area 3001, and the other end of the traditional antenna connection part 4001 is connected to the traditional feeder connection part 4002. At this time, the traditional antenna connection part 4001 and the traditional feeder connection part 4002 are L-shaped, so the stress of the traditional FPC module 400 at the bending position will be transmitted to the connection position of the traditional antenna connection part 4001 and the traditional binding area 3001, thereby causing the connection position of the traditional antenna connection part 4001 and the traditional binding area 3001 to be easily broken.

[0075] In some embodiments, in combination Figure 3-Figure 5 It can be seen that the antenna connection portion 21 extends along the first direction 1001 , the adhesive connection portion 22 extends along the second direction 1002 , and the feed line connection portion 23 extends along the third direction 1003 .

[0076] The first direction 1001 , the second direction 1002 and the third direction 1003 are orthogonal to each other, and the third direction 1003 is perpendicular to the surface of the transparent base film 1 .

[0077] In addition, the projection of the transparent antenna 100 on the transparent base film 1 is Z-shaped.

[0078] In some embodiments, according to Figure 1 , Figure 3 , Figure 4 and Figure 5 It can be seen that the binding area 101 has a shape and size that matches the projection of the antenna connecting portion 21 on the transparent base film 1 .

[0079] In some embodiments, reference Figure 3-Figure 5 It can be seen that the impedance matching of the FPC module 2 is 50Ω (Ω represents ohm).

[0080] In some embodiments, Figure 2-Figure 5 It can be seen that the anisotropic conductive adhesive 3 is arranged between the antenna connecting part 21 and the binding area 101 , and a preset binding temperature and a preset binding pressure are applied to the anisotropic conductive adhesive 3 so that at least a part of the antenna connecting part 21 is fixedly connected to the binding area 101 .

[0081] In the embodiment of the present application, the feeder line 4 is welded to an end of the feeder line connection portion 23 away from the adhesive connection portion 22 at a preset welding temperature.

[0082] In some embodiments, in combination Figure 1-Figure 5 It can be seen that the binding temperature is matched to 80°C to 300°C (°C represents Celsius), the binding pressure is matched to 0.1Mpa to 5Mpa (Mpa represents megapascal), and the welding temperature is matched to 220°C to 350°C.

[0083] See also Figure 5 The electronic device (not shown in the figure) at least includes: a casing 200.

[0084] Specifically, a receiving cavity 2003 is formed inside the housing 200 .

[0085] To further explain, at least a portion of the transparent antenna 100 is disposed in the accommodating cavity 2003 .

[0086] In some embodiments, Figure 5 As shown, the housing 200 at least includes: a bottom plate 2001 and a plurality of side plates 2002 .

[0087] It should be noted that the side panels 2002 all protrude from the surface of the bottom panel 2001 and are arranged along the circumferential edge of the bottom panel 2001 to enclose and form the accommodating cavity 2003 .

[0088] In some embodiments, according to Figure 5 It can be seen that the transparent base film 1 of the transparent antenna 100 is attached to the surface of the bottom plate 2001 and is located in the accommodating cavity 2003 .

[0089] It can be understood that the surface of the antenna connecting part 21 of the FPC module 2 of the transparent antenna 100 is parallel to the surface of the bottom plate 2001, the surface of the adhesive connecting part 22 of the FPC module 2 is in contact with the surface of the side panel 2002 of the binding area 101 close to the transparent base film 1 among several side panels 2002, and the antenna connecting part 21 and the adhesive connecting part 22 are both located in the accommodating cavity 2003.

[0090] When the transparent base film 1 is attached to the bottom plate 2001, the antenna connecting part 21 needs to be bent so that the surface of the adhesive backing connecting part 22 fits with the surface of the side panels 2002 close to the binding area 101 among the side panels 2002. At this time, the stress formed at the bending position of the antenna connecting part 21 is transmitted to the side of the adhesive backing connecting part 22 away from the antenna connecting part 21, thereby avoiding cracks or even breakage of the transparent base film 1 and the antenna connecting part 21 at the binding position of the anisotropic conductive adhesive 3 due to bending, thereby ensuring the antenna performance of the transparent antenna 100.

[0091] Fig. 9 A flow chart of a method for feeding a transparent antenna provided in an embodiment of the present invention.

[0092] See also Fig. 9 , the feeding method of the transparent antenna includes but is not limited to the following steps:

[0093] S10, connecting one end of the FPC module of the transparent antenna to the transparent base film of the transparent antenna through the anisotropic conductive adhesive of the transparent antenna.

[0094] S20, welding the feeder line of the transparent antenna to an end of the FPC module away from the transparent base film, so that the transparent base film is connected to the feeder line through the FPC module.

[0095] S30, bend a portion of the antenna connection part of the FPC module so that the surface of the adhesive connection part of the FPC module fits with the surface of the side panel of the casing of the electronic device. At this time, the stress formed at the bending position of the antenna connection part is transmitted to the side of the adhesive connection part away from the antenna connection part.

[0096] In summary, the transparent antenna, electronic device and feeding method of the transparent antenna provided by the embodiment of the present invention, the FPC module of the transparent antenna has a structural design of an antenna connection part, a back adhesive connection part and a feeder connection part, and the projections of the antenna connection part and the back adhesive connection part on the transparent base film are perpendicular to each other; the antenna connection part is connected to the binding area of ​​the transparent base film, and the feeder is welded to the feeder connection part, and the back adhesive connection part is fixed to the casing through the back adhesive, thereby improving the feeding method of the transparent antenna, and at the same time, it can avoid the transparent base film and the antenna connection part from being broken at the binding position of the anisotropic conductive adhesive due to bending, thereby ensuring the antenna performance of the transparent antenna. Therefore, the feeding method of the transparent antenna suitable for electronic devices provided by the embodiment of the present invention has certain novelty compared with the feeding method of the traditional transparent antenna suitable for electronic devices.

[0097] The above contents are further detailed descriptions of the present invention in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A transparent antenna, which is applied to an electronic device having a housing, characterized in that: The transparent antenna comprises: A transparent base film; a preset binding area is provided at the edge of the transparent base film, and the transparent base film is attached to a portion of the housing; FPC module; the FPC module at least comprises an antenna connection portion, an adhesive connection portion and a feeder connection portion; the projections of the antenna connection portion and the adhesive connection portion on the transparent base film are perpendicular to each other; Anisotropic conductive adhesive; at least a portion of the antenna connection portion is fixedly connected to the binding area through the anisotropic conductive adhesive; One end of the antenna connection part away from the binding area is connected to one end of the adhesive connection part; the other end of the adhesive connection part is connected to the feeder connection part; The adhesive connection portion is provided with adhesive, and the adhesive connection portion is attached to at least a portion of the housing through the adhesive; a preset welding area is provided at one end of the feeder connection portion away from the adhesive connection portion; Feeder; the feeder can be welded to the welding area so that the transparent base film is connected to the feeder through the FPC module.

2. The transparent antenna according to claim 1, characterized in that: The antenna connection portion extends along a first direction, the adhesive connection portion extends along a second direction, and the feeder connection portion extends along a third direction; The first direction, the second direction and the third direction are orthogonal to each other, and the third direction is perpendicular to the surface of the transparent base film.

3. The transparent antenna according to claim 1, characterized in that: The binding area has a shape and a size adapted to a projection of the antenna connecting portion on the transparent base film.

4. The transparent antenna according to claim 1, characterized in that: The impedance matching of the FPC module is 50Ω.

5. The transparent antenna according to claim 1, characterized in that: The anisotropic conductive adhesive is disposed between the antenna connection portion and the binding area, and a preset binding temperature and a preset binding pressure are applied to the anisotropic conductive adhesive so that at least a portion of the antenna connection portion is fixedly connected to the binding area; The feeder is welded to an end of the feeder connection portion away from the adhesive connection portion at a preset welding temperature.

6. The transparent antenna according to claim 5, characterized in that: The binding temperature is matched to 80°C to 300°C, the binding pressure is matched to 0.1Mpa to 5Mpa, and the welding temperature is matched to 220°C to 350°C.

7. An electronic device, characterized in that: At least: A housing; a receiving cavity is formed inside the housing; At least a portion of the transparent antenna as described in any one of claims 1 to 6 is arranged in the accommodating cavity.

8. The electronic device according to claim 7, characterized in that: The housing at least comprises: A bottom plate and a plurality of side plates; the plurality of side plates all protrude from the surface of the bottom plate and are arranged along the circumferential edge of the bottom plate to enclose and form the accommodating cavity.

9. The electronic device according to claim 8, characterized in that: The transparent base film of the transparent antenna is attached to the surface of the bottom plate and is located in the accommodating cavity; The surface of the antenna connecting part of the FPC module of the transparent antenna is parallel to the surface of the bottom plate, the surface of the adhesive back connecting part of the FPC module is in contact with the surface of the side panels of the binding area close to the transparent base film among several side panels, and the antenna connecting part and the adhesive back connecting part are both located in the accommodating cavity.

10. A feeding method for a transparent antenna, characterized in that: include: Connecting one end of the FPC module of the transparent antenna according to any one of claims 1 to 6 to the transparent base film of the transparent antenna through the anisotropic conductive adhesive of the transparent antenna; Welding the feeder of the transparent antenna to an end of the FPC module away from the transparent base film, so that the transparent base film is connected to the feeder through the FPC module; Bend a portion of the antenna connecting part of the FPC module so that the surface of the adhesive backing connection part of the FPC module fits with the surface of the side panel of the casing of the electronic device as described in any one of claims 7 to 9. At this time, the stress formed at the bending position of the antenna connecting part is transmitted to the side of the adhesive backing connection part away from the antenna connecting part.

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