CN210607605U - Antenna device and mobile payment terminal - Google Patents
Antenna device and mobile payment terminal Download PDFInfo
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- CN210607605U CN210607605U CN201921744381.9U CN201921744381U CN210607605U CN 210607605 U CN210607605 U CN 210607605U CN 201921744381 U CN201921744381 U CN 201921744381U CN 210607605 U CN210607605 U CN 210607605U
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Abstract
The application relates to an antenna device and a mobile payment terminal. Wherein, antenna device includes: a substrate; the first antenna unit is arranged on the substrate and comprises a first branch and a second branch, and the first branch and the second branch are arranged at intervals; the first branch is arranged on the first side of the second branch, and the first branch and the second branch are both used for accessing a first feeding signal; the second antenna unit is arranged on the substrate, the second antenna unit is arranged on the second side of the second branch, the first side and the second side are close sides, the second antenna unit is used for accessing a second feed signal, the compact structure design is achieved, and compared with an antenna winding mode adopted in the prior art, the compact structure design is small in size and suitable for a miniaturized terminal. The antenna device provided by the embodiment of the application can be used for resonance of two wireless network signals, and can meet communication requirements in different application scenes.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to an antenna device and mobile payment terminal.
Background
The statements herein merely provide background information related to the present application and may not necessarily constitute prior art.
With the development of communication technology, mobile payment has gradually replaced cash transactions, which greatly facilitates the life of people. At present, most common mobile payment terminals belong to large-scale payment terminals, and along with the small and exquisite design requirements of various terminals, an antenna suitable for a small-scale terminal needs to be provided, and the compact design of the terminal is realized on the premise that the radiation performance and other parameters of an antenna structure are not influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide an antenna device and a mobile payment terminal for the problem of providing an antenna structure that can be applied to a miniaturized terminal, especially a mobile payment terminal.
An embodiment of the utility model provides an antenna device, include:
a substrate; and
the antenna comprises a substrate, a first antenna unit arranged on the substrate, a second antenna unit arranged on the substrate, a first antenna unit and a second antenna unit, wherein the first antenna unit comprises a first branch and a second branch which are arranged at intervals; the first branch is arranged on the first side of the second branch, and the first branch and the second branch are both used for accessing a first feeding signal;
the second antenna unit is arranged on the substrate, the second antenna unit is arranged on a second side of the second branch, the first side and the second side are adjacent sides, and the second antenna unit is used for accessing a second feeding signal.
The antenna device that this application embodiment provided, through setting up first antenna element and second antenna element respectively, and divide into first branch and second branch with first antenna element, further set up first branch and second antenna element respectively in the first side and the second side of second branch, first branch, second branch and second antenna element wholly are triangle-shaped distribution, realize compact structural design, compare in the antenna winding mode that adopts among the conventional art, and is small, be applicable to miniaturized terminal. The antenna device provided by the embodiment of the application can be used for resonance of two wireless network signals, and can meet communication requirements in different application scenes.
In one embodiment, the first branch comprises a first signal feed arm, a first radiating arm, a second radiating arm and a third radiating arm;
the first signal feed-in arm is provided with a first feed point, and the first feed point is used for accessing a first feed signal;
the first radiation arm and the third radiation arm are arranged on the same side of the first signal feed-in arm, and the first radiation arm and the second radiation arm are respectively arranged on two sides of the first signal feed-in arm.
In one embodiment, the first radiation arm surrounds clockwise to form a containing space;
the second radiation arm is wound along the anticlockwise direction;
the third radiation arm is wound along the anticlockwise reverse direction in the accommodating space.
In one embodiment, the second branch includes a second signal feeding arm and a fourth radiating arm, the second signal feeding arm is provided with a second feeding point, and the second feeding point is used for connecting the first feeding signal.
In one embodiment, the second antenna element includes a third signal feeding arm and a fifth radiating arm, the third signal feeding arm is provided with a third feeding point, and the third feeding point is used for receiving the second feeding signal.
In one embodiment, the fifth radiation arm is arranged along the counterclockwise direction, and the fifth radiation arm is wound to form a plurality of hollow parts.
In one embodiment, a fourth feeding point is disposed on the fifth radiating arm, and the fourth feeding point is used for accessing the second feeding signal.
In one embodiment, the first antenna element is used for resonance of a first wireless network signal and the second antenna element is used for resonance of a second wireless network signal.
In one embodiment, the first wireless network signal is a 4G wireless network signal, and the second wireless network signal is a WiFi wireless network signal.
A mobile payment terminal comprises a body and a cover body, wherein the body is provided with a groove, when the cover body is covered on the body, the groove is sealed by the cover body to form a cavity, and an antenna device is arranged in the cavity;
the cover body is provided with a first area matched with the substrate of the antenna device in shape, the first area of the cover body is made of a material through which electromagnetic waves emitted by the antenna device can pass, and the rest of the cover body is made of a metal material.
Drawings
Fig. 1 is a schematic structural diagram of an antenna device according to an embodiment;
fig. 2 is a schematic structural diagram of an antenna device in another embodiment;
FIG. 3a is a return loss diagram of an embodiment of a first antenna unit used for resonance of a 4G wireless network signal;
FIG. 3b is a Smith chart illustrating the use of the first antenna element for resonating 4G wireless network signals according to one embodiment;
FIG. 3c is a standing wave ratio diagram of the first antenna element when the first antenna element is used for resonance of 4G wireless network signals according to one embodiment;
fig. 3d is a schematic radiation diagram of the first antenna unit in one embodiment at different frequencies when theta is 90 ° when the first antenna unit is used for resonance of 4G wireless network signals;
fig. 3e is a schematic radiation diagram of the first antenna unit in one embodiment at different frequencies when phi is 0 ° when the first antenna unit is used for resonance of a 4G wireless network signal;
fig. 3f is a schematic radiation diagram of the first antenna unit in one embodiment at different frequencies when phi is 90 ° when the first antenna unit is used for resonance of a 4G wireless network signal;
fig. 4a is a schematic return loss diagram of the second antenna unit when the second antenna unit is used for resonance of WiFi wireless network signals in an embodiment;
FIG. 4b is a Smith chart of the second antenna unit for use in resonating signals of the WiFi wireless network in one embodiment;
FIG. 4c is a standing wave ratio diagram of the second antenna element when the second antenna element is used for resonance of signals of the WiFi wireless network in one embodiment;
fig. 5a is a schematic radiation diagram of the second antenna unit at different frequencies when theta is 90 ° when the second antenna unit is used for resonance of 2.4G WiFi wireless network signals in one embodiment;
fig. 5b is a schematic radiation diagram of the second antenna unit in one embodiment at different frequencies when phi is 0 ° when the second antenna unit is used for resonance of 2.4G WiFi wireless network signals;
fig. 5c is a schematic radiation diagram of the second antenna unit in one embodiment at different frequencies when phi is 90 ° when the second antenna unit is used for resonance of 2.4G WiFi wireless network signals;
fig. 6a is a schematic radiation diagram of the second antenna unit at different frequencies when theta is 90 ° when the second antenna unit is used for resonance of 5G WiFi wireless network signals in one embodiment;
fig. 6b is a schematic radiation diagram of the second antenna unit in one embodiment at different frequencies when phi is 0 ° when the second antenna unit is used for resonating WiFi wireless network signals of 5G;
fig. 6c is a schematic radiation diagram of the second antenna unit in one embodiment at different frequencies when phi is 90 ° when the second antenna unit is used for resonating WiFi wireless network signals of 5G;
fig. 7 is an internal structure diagram of a mobile payment terminal in one embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
An embodiment of the present invention provides an antenna device 100, including: a substrate 1; and a first antenna element 2 arranged on the substrate 1, the first antenna element 2 comprising a first branch 21 and a second branch 22, the first branch 21 and the second branch 22 being arranged at intervals; and the second branch 22 is arranged at a first side of the first branch 21, the first branch 21 and the second branch 22 are both used for accessing a first feeding signal a; a second antenna element 3 arranged on the substrate 1, the second antenna element 3 being arranged on a second side of the first branch 21, the first side and the second side being adjacent sides, and the second antenna element 3 being arranged for coupling in a second feeding signal b.
The substrate 1 may be an FPC (Flexible Printed Circuit) or other types of Circuit boards. The first antenna unit 2 and the second antenna unit 3 are composed of metal sheets, and parameter requirements of the antenna when the antenna transmits electromagnetic waves are met through the metal sheet arrangement mode and the winding mode.
Specifically, the antenna device 100 provided in the present application sets the first antenna element 2 and the second antenna element 3 through integration on the substrate 1, and separates the first antenna element 2 into the first branch 21 and the second branch 22, so that the second antenna element 3 and the first branch 21 are respectively located on the first side and the second side of the second branch 22, and the first side and the second side are adjacent sides, so that the first antenna element 2 and the second antenna element 3 are compactly arranged, the area of the substrate 1 is small, and the overall size of the antenna device 100 is small, and the antenna device can be applied to a small-sized terminal. In addition, the antenna device 100 provided in the embodiment of the present application may be used for resonance of two wireless network signals, and may meet communication requirements in different application scenarios.
In one embodiment, the first branch 21 includes a first signal feeding arm 211, a first radiation arm 212, a second radiation arm 213, and a third radiation arm 214; the first signal feed arm 211 is provided with a first feeding point D1, the first feeding point D1 is used for accessing the first feeding signal a; the first radiation arm 212 and the third radiation arm 214 are disposed on the same side of the first signal feeding arm 211, and the first radiation arm 212 and the second radiation arm 213 are disposed on two sides of the first signal feeding arm 211, respectively.
Specifically, the first signal feeding arm 211 may extend in a first direction F1, and the first radiating arm 212 may extend in a second direction F2 perpendicular to the first direction F1 and extend in a direction opposite to the first direction F1. The second radiating arm 213 may extend in a direction opposite to the second direction F2 to extend in a direction opposite to the first direction F1, so as to reduce the width of the metal sheet in the second direction F2, and reduce the space occupied by the antenna structure in the first direction F1. The third radiating arms 214 may extend along the second direction F2, then extend along the first direction F1, and then extend along the opposite direction of the second direction F2 to form a barb structure, and the third radiating arms 214 are distributed in the receiving space surrounded by the first radiating arms 212, so that the first radiating arms 212 and the third radiating arms 214 form a compact structure, and the overall installation space of the first antenna element 2 is reduced. Wherein, the extension portion of the first radiation arm 212 in the second direction F2 and the extension portion of the second radiation arm 213 in the opposite direction of the second direction F2 may be located on the same line. The width of the extension portion of the second radiating arm 213 in the opposite direction to the second direction F2 may be greater than the width of the extension portion of the second radiating arm 213 in the opposite direction to the first direction F1. The projection area of the second radiation arm 213 on the first radiation arm 212 in the second direction F2 is not zero.
In one embodiment, the first branch 21 and the second branch 22 are spaced apart by a reinforcing region 4, and the reinforcing region 4 is provided with a metal sheet or a groove to increase the coupling effect between the first branch 21 and the second branch 22.
As shown in fig. 1 and 2, a metal sheet or a groove is disposed at a position spaced apart from the first branch 21 and the second branch 22 to increase the coupling effect of the first branch 21 and the second branch 22, a projection area of the reinforced region 4 on the third radiating arm 214 along the first direction F1 is not zero, and a projection area of the reinforced region 4 on the second antenna element 3 along the direction opposite to the first direction F1 is not zero.
In one embodiment, the first radiating arm 212 surrounds clockwise to form a receiving space; the second radiating arm 213 is wound in a counterclockwise direction; the third radiating arm 214 is wound in the receiving space in the counterclockwise reverse direction.
As shown in fig. 1 and 2, the first radiating arm 212 may form a receiving space by being wound clockwise, the second radiating arm 213 is wound counterclockwise on the other side of the first signal feeding arm 211, the third radiating arm 214 is wound counterclockwise in the receiving space formed by winding the first radiating arm 212, the three radiating arms are in a compact layout, and a gap is left between the first radiating arm 212 and the third radiating arm 214, so that no direct contact is made, and a smaller antenna layout space is used outside a good radiating layout.
In one embodiment, the second branch 22 includes a second signal feeding arm 221 and a fourth radiating arm 222, the second signal feeding arm 221 is provided with a second feeding point D2, and the second feeding point D2 is used for receiving the first feeding signal a.
Specifically, the second signal feeding arm 221 may extend along the first direction F1, the fourth radiating arm 222 may be connected to the second signal feeding arm 221 and extend continuously along the first direction F1 on the basis of the second signal feeding arm 221, and a width of the fourth radiating arm 222 is smaller than a width of the second signal feeding arm 221. The second branch 22 and the second branch 22 are each provided with a feeding point for switching in the first feeding signal a. For example, when the first antenna element 2 is used for resonance of 4G wireless network signals, the antenna characteristic parameters are as shown in fig. 3.
In one embodiment, the second antenna element 3 includes a third signal feeding arm 31 and a fifth radiating arm 32, the third signal feeding arm 31 is provided with a third feeding point D3, and the third feeding point D3 is configured to receive the second feeding signal b.
Specifically, as shown in fig. 1 and 2, the third signal feeding arm 31 may extend along the first direction F1, and the fifth radiating arm 32 extends from the connection point with the third signal feeding arm 31 along the first direction F1, then along the second direction F2, then along the first direction F1, then along the direction opposite to the second direction F2, and finally along the direction opposite to the first direction F1. A serpentine-shaped hollow portion is formed between the fifth radiating arm 32 and the third signal feeding arm 31. A third feeding point D3 on the third signal feeding arm 31 is used for tapping in the second feeding signal b, for example, the second cable 6 may be connected.
In one embodiment, the fifth radiating arm 32 is disposed in a counterclockwise direction, and the fifth radiating arm 32 is wound to form a plurality of hollow portions.
In one embodiment, a fourth feeding point D4 is disposed on the fifth radiating arm 32, and the fourth feeding point D4 is used for receiving the second feeding signal b.
As shown in fig. 1 and fig. 2, the fifth radiating arm 32 is provided with a fourth feeding point D4, the fourth feeding point D4 is also used for receiving the second feeding signal b, and when the connection between a certain feeding point on the second antenna element 3 and the second cable 6 is loose, the other feeding point can also ensure the normal transmission of the second feeding signal b, which does not affect the use of the antenna, and improves the reliability of the antenna device 100.
In one embodiment, the first antenna element 2 is used for resonance of a first wireless network signal and the second antenna element 3 is used for resonance of a second wireless network signal.
As shown in fig. 1 and 2, the first antenna element 2 and the second antenna element 3 are used for resonance of the same or different wireless network signals, respectively, for example, the first antenna element 2 may be used for resonance of a 4G wireless network signal or a WiFi wireless network signal, and the second antenna element 3 may be used for resonance of a 4G wireless network signal or a WiFi wireless network signal.
In one embodiment, the first wireless network signal is a 4G wireless network signal, and the second wireless network signal is a WiFi wireless network signal.
As shown in fig. 3 to 6, the first wireless network signal may be a 4G wireless network signal, and the second wireless network signal is a WiFi wireless network signal, the parameter performance of the first antenna unit 2 in the antenna apparatus 100 provided in this embodiment is shown in each partial diagram in fig. 3 when the first antenna unit is used for the resonance of the 4G wireless network signal, the parameter performance of the second antenna unit 3 when the second antenna unit is used for the resonance of the 2.4G WiFi wireless network signal is shown in fig. 4 and 5, and the parameter performance when the second antenna unit 3 is used for the resonance of the 5G WiFi wireless network signal is shown in fig. 4 and 6. As can be seen from fig. 3 to fig. 6, the antenna device 100 provided in the embodiment of the present application can meet the performance parameter requirements of WiFi antennas of 4G and different frequencies.
A mobile payment terminal comprises a body and a cover body, wherein the body is provided with a groove 200, when the cover body is covered on the body, the groove 200 is sealed by the cover body to form a cavity, and the antenna device 100 is arranged in the cavity; the cover is provided with a first area matched with the substrate 1 of the antenna device 100 in shape, the first area of the cover is made of a material through which electromagnetic waves emitted by the antenna device 100 can pass, and the rest of the cover is made of a metal material.
As shown in fig. 1, fig. 2 and fig. 6, the cover body on the mobile payment terminal, for example, may be a rear end cover, on which a first region is disposed, the first region is used for passing electromagnetic waves, and the rest of the cover body may be made of a metal material to play a shielding role, and can ensure the strength of the mobile payment terminal, and is not easy to break. The substrate 1 is shape-matched to the first area so that the electromagnetic waves emitted by the antenna device 100 can be concentrated to emanate from the first area. The mobile payment terminal can further comprise a camera device 800 and the like, and the camera device is used for collecting two-dimensional code information or face information to realize payment. Wherein, the mobile payment terminal may further include a first cable 5 and a second cable 6, the first cable 5 being used for outputting a first feeding signal a to the first antenna unit 2, and the second cable 6 being used for outputting a second feeding signal b to the second antenna unit 3. The first cable 5 and the second cable 6 may employ coaxial cables having a diameter of 1.13 mm.
Alternatively, the shape of the substrate 1 may be circular, and the diameter of the substrate 1 may be 64.6 ± 0.15 mm.
In one embodiment, the mobile payment terminal further comprises a conductive cloth, the conductive cloth is disposed on the substrate 1, the conductive cloth is respectively connected to the grounding point disposed on the second branch 22 and the grounding point disposed on the second antenna unit 3, and the conductive cloth is used for grounding.
Wherein, the ground refers to the ground of the mobile payment terminal. The conductive cloth can be 42.79 plus or minus 0.3mm in length and 20.22 plus or minus 0.3mm in width. Specifically, in order to ensure the normal power-on operation of the antenna, grounding points are provided on the first branch 21 and the second antenna unit 3 of the antenna, a conductive cloth is connected to the grounding points, and the conductive cloth is connected to the ground of the battery of the mobile payment terminal or the ground of the screen of the mobile payment terminal, so as to provide a ground signal for the antenna device 100.
In one embodiment, the mobile payment terminal further comprises a first conductive foam 300, the first conductive foam 300 being disposed near an inner wall of the recess 200 for shielding signals of the antenna device 100.
The first conductive foam 300 may be disposed in the groove 200 and on the inner wall of the groove 200 near the side of the image pickup device 800, for shielding the signal of the antenna device 100 to avoid signal interference to other devices such as the image pickup device 800.
In one embodiment, a screen is disposed within the recess 200; the rear surface of the screen is provided with second and third conductive foams 400 and 500; one end of the second conductive foam 400 is connected to the metal ground of the screen, and the other end of the second conductive foam 400 is connected to the first metal pillar 600; one end of the third conductive foam 500 is connected to the metal ground of the screen, and the other end of the third conductive foam 500 is connected to the second metal pillar 700; when the cover is covered on the body, the first metal column 600 and the second metal column 700 are both connected with the cover.
Specifically, as shown in fig. 7, the antenna device 100 may be disposed on the back of a screen of the mobile payment terminal, the back of the screen may be connected to the cover body sequentially through the second conductive foam 400 and the first metal column 600, and the back of the screen may be connected to the cover body sequentially through the third conductive foam 500 and the second metal column 700.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An antenna device, comprising:
a substrate; and
a first antenna element disposed on the substrate, the first antenna element including a first branch and a second branch, the first branch and the second branch being spaced apart; the first branch is arranged on the first side of the second branch, and the first branch and the second branch are both used for accessing a first feeding signal;
the second antenna unit is arranged on the substrate, the second antenna unit is arranged on a second side of the second branch, the first side and the second side are adjacent sides, and the second antenna unit is used for accessing a second feeding signal.
2. The antenna device according to claim 1, wherein the first branch comprises a first signal feed arm, a first radiating arm, a second radiating arm, and a third radiating arm;
the first signal feed-in arm is provided with a first feed point, and the first feed point is used for accessing the first feed signal;
the first radiation arm and the third radiation arm are arranged on the same side of the first signal feed-in arm, and the first radiation arm and the second radiation arm are respectively arranged on two sides of the first signal feed-in arm.
3. The antenna device according to claim 2, wherein the first radiating arm is clockwise surrounded to form a receiving space;
the second radiation arm is wound along the anticlockwise direction;
the third radiation arm is wound along the anticlockwise reverse direction in the accommodating space.
4. The antenna device as claimed in claim 2 or 3, wherein the second branch comprises a second signal feed arm and a fourth radiating arm, the second signal feed arm having a second feeding point disposed thereon, the second feeding point being configured to access the first feeding signal.
5. The antenna device according to claim 4, wherein the second antenna element comprises a third signal feeding arm and a fifth radiating arm, and a third feeding point is disposed on the third signal feeding arm, and the third feeding point is configured to access the second feeding signal.
6. The antenna device according to claim 5, wherein the fifth radiating arm is disposed in a counterclockwise direction, and the fifth radiating arm is wound to form a plurality of hollow portions.
7. The antenna device according to claim 6, wherein a fourth feeding point is disposed on the fifth radiating arm, and the fourth feeding point is configured to access the second feeding signal.
8. The antenna device according to claim 1 or 2 or 3 or 5 or 6 or 7, characterized in that the first antenna element is used for resonance of a first wireless network signal and the second antenna element is used for resonance of a second wireless network signal.
9. The antenna device as claimed in claim 8, wherein the first wireless network signal is a 4G wireless network signal and the second wireless network signal is a WiFi wireless network signal.
10. A mobile payment terminal comprising a body and a cover, the body being provided with a recess which is closed by the cover when the cover is placed over the body to form a cavity, the antenna device of any one of claims 1-9 being disposed within the cavity;
the antenna device comprises a cover body and is characterized in that a first area matched with the shape of a substrate of the antenna device is arranged on the cover body, the first area of the cover body is made of a material through which electromagnetic waves emitted by the antenna device can pass, and the rest of the cover body is made of a metal material.
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| CN201921744381.9U CN210607605U (en) | 2019-10-17 | 2019-10-17 | Antenna device and mobile payment terminal |
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| CN201921744381.9U CN210607605U (en) | 2019-10-17 | 2019-10-17 | Antenna device and mobile payment terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661087A (en) * | 2019-10-17 | 2020-01-07 | 广东天之河信息技术有限公司 | Antenna device and mobile payment terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661087A (en) * | 2019-10-17 | 2020-01-07 | 广东天之河信息技术有限公司 | Antenna device and mobile payment terminal |
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Denomination of utility model: Antenna device and mobile payment terminal Effective date of registration: 20220117 Granted publication date: 20200522 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Tianhe branch Pledgor: GUANGDONG GALAXY INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2022440000010 |
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Date of cancellation: 20230106 Granted publication date: 20200522 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Tianhe branch Pledgor: GUANGDONG GALAXY INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2022440000010 |
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Denomination of utility model: Antenna device and mobile payment terminal Effective date of registration: 20230113 Granted publication date: 20200522 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Tianhe branch Pledgor: GUANGDONG GALAXY INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2023980030847 |