KR20130067380A - Near field communication antenna and manufacturing method thereof - Google Patents

Near field communication antenna and manufacturing method thereof Download PDF

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Publication number
KR20130067380A
KR20130067380A KR1020110134304A KR20110134304A KR20130067380A KR 20130067380 A KR20130067380 A KR 20130067380A KR 1020110134304 A KR1020110134304 A KR 1020110134304A KR 20110134304 A KR20110134304 A KR 20110134304A KR 20130067380 A KR20130067380 A KR 20130067380A
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KR
South Korea
Prior art keywords
antenna pattern
nfc antenna
antenna
nfc
pattern
Prior art date
Application number
KR1020110134304A
Other languages
Korean (ko)
Inventor
김기수
정태경
조영민
Original Assignee
스카이크로스 인코포레이티드
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to KR1020110134304A priority Critical patent/KR20130067380A/en
Publication of KR20130067380A publication Critical patent/KR20130067380A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526—Electromagnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Aerials (AREA)

Abstract

PURPOSE: An NFC(Near Field Communication) antenna with high contact intensity by using a press, and a manufacturing method thereof are provided to use a material with high mechanical strength to improve durability of the NFC antenna, to maintain the thin thickness of the NFC antenna, and to arrange terminals closely in the same direction. CONSTITUTION: A manufacturing method of an NFC antenna is composed of the following steps: the step(S200) of forming a plate in which masking film stripes are formed on a part of one side of a metal plate which is used as an emitter; the step(S210) of forming an antenna, which corresponds to the length of the NFC antenna, to be a loop shape on a metal plate, forming one side terminal, which is composed of the masking film stripes, to be the inside of the antenna pattern, and press-forming the other side terminal to be formed as the outside of the antenna pattern; the step(S220) of contact-bending the one side terminal to be bent to cross a part of the antenna pattern which is composed of the masking film stripes; and the step(S250) of forming a shielding material in which the shielding material is attached to the other side of the antenna pattern. [Reference numerals] (AA) Start; (BB) End; (S200) Board formation; (S210) Pattern formation; (S220) Contact bending; (S230) Taping; (S240) Temporary fixing unit elimination; (S250) Closed material formation; (S260) Insulation formation

Description

NFC antenna and manufacturing method thereof

The present invention relates to an NFC antenna and a method of manufacturing the same, and more particularly, an NFC antenna and a method for providing an NFC antenna (Near Field Communication antenna) having a high contact strength easily and inexpensively using a press. It relates to a manufacturing method.

Recently, various antennas have been developed to support various wireless services of portable mobile devices.

In particular, NFC (Near Field Communication) communication, which has recently emerged with the expansion of smartphones, is a communication method that exchanges a small amount of information at a speed of 424 kbit / s at a distance of 10 cm using a frequency of 13.56 MHz. It is widely used in real life such as payment service and access control lock.

NFC antenna provided to support such NFC communication method, as shown in Figure 1, the flexible printed circuit board (FPCB) constituting the NFC antenna to be easily mounted inside the case of the terminal, NFC communication band An antenna pattern having an antenna length corresponding to the antenna pattern is configured as a loop antenna along an edge of the FPCB.

In the configuration of such an NFC antenna, the FPCB 100 is flexible but has a weak mechanical strength and durability, and a short lifespan. In addition, the terminal parts are easily worn, and due to the inherent characteristics of the FPCB, the production process is complicated, difficult to process, and high production cost.

The NFC antenna using the conventional FPCB 100 corresponds to a mold array, and the unit cost is calculated. In the NFC antenna, at least 40 × 40 mm 2 is used, which causes a high component cost.

Recently, the demand for new devices or methods for minimizing the unit cost of electronic devices is increasing as a large number of components are provided to have various functions.

Korean Patent Publication No. 2009-0126323

In order to solve the problems as described above, the present invention is to provide an NFC antenna with a material and a method inexpensive NFC antenna and its manufacturing method to lower the unit cost of the NFC antenna, NFC NFC that can improve the work convenience And its manufacturing method.

In addition, the present invention improves the durability of the NFC antenna by using a material having a high mechanical strength as a radiator, NFC to maintain the thin thickness of the NFC antenna, and to increase the reliability of the terminal adjacent to the terminal in the same direction An object of the present invention is to provide an antenna and a method of manufacturing the same.

NFC antenna manufacturing method according to the present invention for achieving the above object is a plate forming step of forming a masking film stripe on one side of the metal plate to be used as a radiator; and an antenna pattern corresponding to the NFC antenna length on the metal plate in a loop shape A pattern forming step of forming a side terminal having a masking film stripe formed on one surface of the antenna pattern and pressing the other side of the antenna pattern to the outside of the antenna pattern; and forming the one side terminal with the masking film stripe. Contact bending bending to cross a portion of the antenna pattern; And a shield forming step of attaching a shield to the other surface of the antenna pattern.

In addition, the pattern forming step may further form at least one or more temporary fixing portion connecting the adjacent antenna pattern through the press working, cutting and separating the temporary fixing portion between the contact bending step and the shield forming step. An interim fixation step may be further included.

In addition, a taping step of attaching a double-sided tape to at least a portion of one surface of the antenna pattern after the contact bending step may be further included. After the taping step, the temporary fixing part formed on the antenna pattern and the outside of the antenna pattern are attached. The double-sided tape can be cut.

In addition, the shielding forming step may be attached to the other surface of the antenna pattern so that the plurality of shielding fragments do not overlap each other, the shielding body may be formed of one or more of the antenna shielding material including a ferrite sheet.

In addition, the metal plate may be formed of any one or two or more alloys of metal radiator materials including SUS, brass, copper, and phosphor bronze, and a shield attached to the antenna pattern to electrically insulate the antenna pattern after the shielding forming step. An insulation forming step of attaching the PET film may be further included.

NFC antenna according to the present invention for achieving the above object is an NFC antenna pattern having a plurality of terminals formed by pressing a metal plate; A masking film formed on one surface of a partial region including one terminal of the NFC antenna pattern; And a shielding body formed on the other surface of the NFC antenna pattern to prevent signal interference, wherein one terminal of the NFC antenna pattern is bent to cross an area in which the masking film stripe is formed to maintain insulation between the NFC antenna patterns. It may be formed to match the direction with the other terminal of the plurality of terminals.

In addition, the NFC antenna pattern may be a double-sided tape attached to one surface, a PET film may be formed on the other surface, any one or two or more alloys of the metal material for antenna radiators including SUS, brass, copper, phosphor bronze. Can be formed.

In addition, the shield may be formed of a plurality of pieces.

Unlike the conventional situation in which the NFC antenna is formed of a high cost FPCB, the NFC antenna and its manufacturing method according to the present invention are formed by pressing a metal plate to form the NFC antenna pattern, thereby lowering the unit cost of the NFC antenna and improving work convenience. There is.

In addition, the NFC antenna and the method of manufacturing the same according to the present invention improves the durability of the NFC antenna by using a high mechanical strength copper, brass, phosphor bronze, stainless steel (SUS), etc. as the NFC antenna material, While maintaining a thin thickness, there is an effect of increasing the resistance to wear of the terminal.

In addition, unlike the conventional situation in which the NFC antenna is formed of an FPCB in which the unit price is calculated according to a mold array, the NFC antenna and the manufacturing method according to the present invention are formed by pressing a metal plate to form the NFC antenna. As such, cost savings are high.

1 is a NFC antenna formed of a conventional FPCB.
Figure 2 is a NFC antenna manufacturing flowchart according to the present invention.
3 is a view showing the formation of a masking film stripe on a portion of the metal plate according to the present invention.
4 is a view showing a temporary fixing part for fixing the NFC antenna pattern according to the present invention.
Figure 5 is a view configured to be configured so that one terminal crosses the NFC antenna pattern from above in accordance with the present invention.
6 is a view showing a double-sided tape on one surface of the NFC antenna according to the present invention.
7 is a view showing a state of cutting the temporary fixing according to the present invention.
8 is a view illustrating a shield configured on one surface of an NFC antenna according to the present invention;
9 is a view showing a PET film on one surface of the NFC antenna according to the present invention.
10 is a view showing a NFC antenna in accordance with the present invention.

In the conventional NFC antenna manufacturing method, the NFC antenna formed of FPCB has a high physical cost due to its flexible physical properties, and is weak in durability, so as to improve the short lifespan. The present invention proposes an NFC antenna and a method of manufacturing the same, which can greatly improve the strength and reduce the manufacturing cost.

An example of an NFC antenna and a method of manufacturing the same according to the present invention can be applied in various ways. Hereinafter, in describing the most preferred embodiment with reference to the accompanying drawings, each configuration and coupling relationship is required by those skilled in the art and NFC. Various modifications are possible depending on the configuration of the antenna, and therefore it is not limited to the specific one.

2 is a flowchart illustrating a manufacturing process of the NFC antenna according to the present invention.

As shown in Figure 2, the NFC antenna manufacturing method is a plate forming step (S200), pattern forming step (S210), contact bending step (S220), taping step (S230), temporary fixing step (S240), Through the shield forming step (S250) and the insulating forming step (S260), each step will be described in detail with reference to FIGS.

First, the plate forming step (S200) attaches the masking film stripe 20 to some surfaces of the metal plate 10 on which the NFC antenna pattern 30 is to be formed, as shown in FIG. 3.

In this case, some surfaces of the metal plate 10 to which the masking film stripe 20 is attached include a region in which one side terminal 32 is formed through a press as shown in FIG. 4.

The metal plate 10 may be made of any one or two or more alloys of a metal material for antenna radiators including copper, brass, phosphor bronze, stainless steel (SUS), and the unit price is lower than that of the conventional FPCB and mechanical strength is low. Excellent and softness

Thereafter, the masking film stripe 20 is subjected to a pattern forming step (S210) of pressing the metal plate 10 is attached. Referring to FIG. 4 in detail, the metal plate 10 to which the masking film stripe 20 is attached is press-processed into a preset loop-shaped molding to form a loop-shaped NFC antenna pattern having an antenna length corresponding to NFC communication. 30 can be manufactured. At this time, the temporary fixing part 31 for temporarily fixing between adjacent antenna patterns through the press working, and one side terminal 32 and the other terminal 33 extending to the antenna pattern 30 and connected to the contact of the terminal ) May be formed together. The temporary fixing part 31 may prevent the in-process flow of the pattern.

At this time, the one terminal 32 may be formed in the inner direction of the antenna pattern 30, the other terminal 33 is formed in the outer direction.

Meanwhile, the masking film stripe 20 remains on a portion of one surface of the antenna pattern 30 through the press process, and one surface of the one side terminal 32 is insulated and covered by the remaining masking film stripe 20. It becomes a state.

Next, the contact bending step (S220) will be described in detail with reference to FIG. 5, the one side terminal 32 of the antenna pattern 30 manufactured through the press working to the terminal contact with the other terminal 33 In order to easily connect, the inner side terminal 32 may be bent while crossing a portion of the antenna pattern from the upper side in the outward direction of the antenna pattern 30.

In this case, one side of the bent terminal 32 is in contact with a portion of the antenna pattern 30 to which the masking film stripe 20 is attached to one surface to which the masking film stripe 20 is attached. Accordingly, electrical insulation is made between the one terminal 32 and the antenna pattern 30 by the remaining masking film stripe 20, and the one terminal (without the masking film stripe 20) attached thereto ( 32 is exposed to the outside to form a pair of contactable terminals adjacently arranged in the same direction as the other terminal 33.

In this process, the temporary fixing part 31 interconnects adjacent antenna patterns so that the antenna pattern 30 is fixed, thereby preventing the antenna pattern from being dislodged or distorted from the present position during bending and other processes. can do.

Next, the taping step (S230) of FIG. 2 is performed, which will be described in detail with reference to FIG. 6. In the taping step (S230), the double-sided tape 40 may be fixed to the terminal. Is attached to one surface of the antenna pattern 30.

At this time, the double-sided tape 40 may have any shape, but in the embodiment of the present invention, the masking film stripe 20 to cover the remaining portion of the one surface of the antenna pattern 30 except for the masking film stripe 20. Based on this, one piece can be separated and attached to each of the upper and lower sides. In addition, the double-sided tape 40 may have the same thickness as the masking film stripe 20.

Through this, one surface of the double-sided tape 40 is attached to the NFC antenna pattern 30 and the other surface can be used by attaching the NFC antenna to the desired location because it provides an adhesive force to the position to be applied later.

The double-sided tape 40 is preferably a configuration including a double-sided adhesive surface and a release paper.

After that, the temporary fixing step S240 of FIG. 2 will be described in detail with reference to FIG. 7. The temporary fixing step S240 of step 2 is unnecessary with the temporary fixing part 31 for temporarily fixing the antenna pattern 30. Remove the double sided tape.

Since the double-sided tape 40 may fix the antenna pattern 30, the temporary fixing part 31 performing the same function may be removed. In addition, the outer edge portion of the antenna pattern 30 of the double-sided tape 40 may be removed together with the temporary fixing portion 31. Of course, the temporary fixing part 31 and a part of the double-sided tape outside the outside of the antenna pattern 30 may be simultaneously cut and removed.

Next, the shield forming step (S250) of Figure 2 will be described in detail with reference to Figure 8 the shield forming step (S250) is a communication method different from NFC, such as 3G, 4G, WiBro, Bluetooth or terrestrial DMB signal, etc. A shield 50 capable of electromagnetic shielding is attached to the other surface of the antenna pattern 30 so as to block or block a metal body (battery, substrate ground, etc.) of the application position. An absorber may be used instead of the shield 50.

The shield 50 is formed of a metal or ferrite powder as an electromagnetic absorber, and may be formed into a plurality of pieces so that the other surface of the antenna pattern 30 is shielded.

Next, the insulation forming step S260 of FIG. 2 will be described with reference to FIG. 9. In the insulating forming step S260, the PET film 60 is attached to the shield 50 attached to the antenna pattern 30.

At this time, the PET film 60 can be electrically insulated to shield the electrical signal generated inside the terminal to prevent distortion of the NFC antenna signal. In addition, the PET film 60 prevents the antenna pattern 30 from being scratched by an external impact, and is attached to the shield 50 so that the shield 50 is not separated from the antenna pattern 30. Can be. Of course, in place of the PET film it can be composed of a variety of materials capable of electrical insulation.

10 is a view showing the NFC antenna according to the present invention manufactured through the above-described process.

The NFC antenna presses the NFC antenna pattern 30 on the metal plate 10 on which the masking film stripe 20 is formed, and then bends the one side terminal 32, and attaches the double-sided tape 40 to one side and the other side. It is formed by adhering the shield 50 and the PET film 60.

10 metal plate 20 masking film stripe
30: NFC antenna pattern 31: temporary fixing
32: one terminal 33: the other terminal
40: double-sided tape 50: shield
60: PET film

Claims (14)

A plate forming step of forming a masking film stripe on a portion of one surface of the metal plate to be used as a radiator;
Forming an antenna pattern corresponding to the length of the NFC antenna on the metal plate in a loop shape, forming one terminal having a masking film stripe on one surface into the inside of the antenna pattern and press-processing to form the other terminal outside of the antenna pattern Pattern forming step;
A contact bending step of bending one side terminal to cross a part of the antenna pattern having the masking film stripe; And
Shield forming step of attaching the shield to the other surface of the antenna pattern
NFC antenna manufacturing method comprising a.
The method according to claim 1,
The pattern forming step
NFC manufacturing method characterized in that it further forms at least one or more temporary fixing to connect the adjacent antenna pattern through the press process.
The method according to claim 2,
NFC antenna manufacturing method characterized in that it further comprises a temporary fixing step of cutting and separating the temporary fixing between the contact bending step and the shield forming step.
The method according to claim 1,
And a taping step of attaching a double-sided tape to at least a portion of one surface of the antenna pattern after the contact bending step.
The method according to claim 3,
And a taping step of attaching a double-sided tape to at least a portion of one surface of the antenna pattern after the contact bending step.
The temporary fixation removal step
NFC antenna manufacturing method characterized in that at the same time cutting the double-sided tape attached to the outside of the antenna pattern.
The method according to claim 1,
The shield forming step is
NFC antenna manufacturing method characterized in that the plurality of shielding pieces are attached to the other surface of the antenna pattern so as not to overlap each other.
The method of claim 6,
The shield is
NFC antenna manufacturing method characterized in that formed of at least one of the antenna shielding material including a ferrite sheet.
The method according to claim 1,
The metal plate is a method of manufacturing an NFC antenna, characterized in that formed of any one or two or more alloys of the metal radiator material, including SUS, brass, copper, phosphor bronze.
The method according to claim 1,
And an insulation forming step of attaching a PET film to a shield attached to the antenna pattern so that the antenna pattern is electrically insulated after the shielding forming step.
An NFC antenna pattern having a plurality of terminals formed by pressing a metal plate;
A masking film formed on one surface of a partial region including one terminal of the NFC antenna pattern;
And a shield formed on the other surface of the NFC antenna pattern to prevent signal interference.
The one side terminal
The NFC antenna pattern of the NFC antenna pattern comprising a bent to cross the area where the masking film is formed to match the direction of the other terminal of the plurality of terminals while maintaining the insulation between the NFC antenna pattern.
The method of claim 10,
The NFC antenna pattern is
NFC antenna, characterized in that the double-sided tape is attached to one side.
The method of claim 10,
The shield is
NFC antenna, characterized in that formed in a plurality of pieces.
The method of claim 10,
The NFC antenna pattern is
NFC antenna, characterized in that formed of any one or two or more alloys of the metal material for antenna radiators, including SUS, brass, copper, phosphor bronze.
The method of claim 10,
The NFC antenna pattern is
NFC antenna, characterized in that the PET film is formed on the other surface.
KR1020110134304A 2011-12-14 2011-12-14 Near field communication antenna and manufacturing method thereof KR20130067380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110134304A KR20130067380A (en) 2011-12-14 2011-12-14 Near field communication antenna and manufacturing method thereof

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Application Number Priority Date Filing Date Title
KR1020110134304A KR20130067380A (en) 2011-12-14 2011-12-14 Near field communication antenna and manufacturing method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013114267A1 (en) 2013-06-12 2014-12-18 Hyundai Motor Company Device and method for determining a Kurzzeitfahrtendenz a driver
US9403531B2 (en) 2014-08-13 2016-08-02 Hyundai Motor Company System and method of controlling vehicle using turning degree

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013114267A1 (en) 2013-06-12 2014-12-18 Hyundai Motor Company Device and method for determining a Kurzzeitfahrtendenz a driver
US9403531B2 (en) 2014-08-13 2016-08-02 Hyundai Motor Company System and method of controlling vehicle using turning degree

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