Combo antenna module

WO2026168882A1PCT designated stage Publication Date: 2026-08-13AMOTECH CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2026-01-30
Publication Date
2026-08-13

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Abstract

The present disclosure relates to a technology concerning a combo antenna mounted in an electronic device, wherein a shielding sheet is formed by stacking a plurality of magnetic sheets, and a through hole is formed in upper magnetic sheets to form a groove-like void in the upper surface of the shielding sheet, thereby preventing a short circuit from occurring between the shielding sheet and a wire coil.
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Description

Combo Antenna Module

[0001] The present invention relates to a combo antenna module including a wire coil and an antenna pattern.

[0002] In the design of combo antenna modules, a structure integrating wireless charging and communication functions is generally widely adopted. This design maximizes space utilization by placing the wireless charging wire coil and the communication antenna within the same module, while simultaneously pursuing lightweight and slim designs.

[0003] In the design of wire coils for wireless charging, a method of applying a thin FPCB (Flexible Printed Circuit Board) pattern to the pattern area connecting from the inner end to the outer end of the coil is mainly used to reduce the overall thickness. At this time, in the area where the wire coil and the FPCB pattern overlap, other materials such as shielding sheets and heat-dissipating sheets are removed so as not to increase the overall thickness.

[0004] While this method offers the advantage of securing wireless charging performance while maintaining a slim structure, there is a problem in that a short circuit may occur between the materials depending on the manufacturing process, leading to abnormal operation and performance degradation of the combo antenna module.

[0005] The matters described in the background technology above are intended to aid in understanding the background of the invention and may include matters that are not disclosed prior art.

[0006] The present invention is proposed in consideration of the above circumstances and aims to provide a combo antenna module that prevents a short circuit between a shielding sheet and a wire coil caused by burrs on the shielding sheet generated during the manufacturing process.

[0007] To achieve the above objective, a combo antenna module according to an embodiment of the present invention comprises a first antenna and a second antenna, and a vertical cross-section of an overlapping region in which the first antenna and the second antenna are overlapped comprises a shielding sheet, a first metal sheet disposed below the shielding sheet, a base substrate disposed below the first metal sheet having an antenna pattern formed thereon, a second metal sheet disposed below the base substrate, and a wire coil disposed below the antenna pattern, and an air gap is formed on the upper surface of the shielding sheet facing the second antenna.

[0008] The voids may be groove-shaped that do not penetrate the shielding sheet.

[0009] The shielding sheet is a laminate in which a plurality of magnetic sheets are stacked, and a through hole may be formed in the magnetic sheet among the plurality of magnetic sheets that is positioned toward the upper surface of the shielding sheet. At this time, the air gap may be formed by stacking a plurality of through holes.

[0010] The shielding sheet includes a plate-shaped first shielding sheet having a through hole formed therein and a plate-shaped second shielding sheet disposed below the first shielding sheet, and the void can be defined as an area enclosed by the inner wall surface of the through hole and the upper surface of the second shielding sheet.

[0011] Based on the vertical cross-section of the overlapping area, the width of the void can be formed wider than the width of the first metal sheet, the base substrate, and the second metal sheet.

[0012] According to the present invention, since the two ends of the base substrate of the combo antenna module are arranged to overlap with a shielding sheet placed outside the receiving space, there is an effect of preventing burrs on the shielding sheet generated during the process of compressing the combo antenna module from coming into contact with the wire coil.

[0013] In addition, the combo antenna module has the effect of preventing short circuits between the burrs of the shielding sheet and the wire coil by preventing damage to the wire coil caused by burrs of the shielding sheet.

[0014] In addition, the combo antenna module is positioned so that the end of the base substrate overlaps with a shielding sheet placed on the outer side of the receiving space, and is adjacent to the vertical axis that divides the shielding sheet, thereby having the effect of preventing a short circuit between the burr of the shielding sheet and the wire coil even if an additional compression process is performed to reduce the thickness of the combo antenna.

[0015] In addition, the combo antenna module has the effect of preventing short circuits between the shielding sheet and the wire coil by forming a groove-shaped air gap on the upper surface of the shielding sheet.

[0016] Figures 1 and 2 are drawings for explaining the configuration of a typical combo antenna module.

[0017] FIGS. 3 to 5 are drawings illustrating a prior art for preventing a short circuit between a shielding sheet and a wire coil.

[0018] FIG. 6 is a vertical cross-sectional view of an overlapping region in which a first antenna and a second antenna are overlapped in a combo antenna module according to a first embodiment of the present invention.

[0019] FIG. 7 is a vertical cross-sectional view of an overlapping area for explaining the compression process of a combo antenna module according to a first embodiment of the present invention.

[0020] FIGS. 8 and 9 are vertical cross-sectional views of an overlapping area to illustrate a modified example of a combo antenna module according to a first embodiment of the present invention.

[0021] FIG. 10 is a vertical cross-sectional view of an overlapping area to illustrate another variation of a combo antenna module according to a first embodiment of the present invention.

[0022] FIG. 11 is a vertical cross-sectional view of an overlapping area to illustrate a modified example of the first antenna of a combo antenna module according to a first embodiment of the present invention.

[0023] FIG. 12 is a vertical cross-sectional view of an overlapping region in which a first antenna and a second antenna are overlapped in a combo antenna module according to a second embodiment of the present invention.

[0024] FIG. 13 is an exploded perspective view illustrating the magnetic sheet of FIG. 12.

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0026] The embodiments are provided to more fully explain the invention to those skilled in the art, and the following embodiments may be modified in various different forms, and the scope of the invention is not limited to the following embodiments. Rather, these embodiments are provided to make the disclosure more faithful and complete and to fully convey the spirit of the invention.

[0027] The terms used herein are for describing specific embodiments and are not intended to limit the invention. Additionally, the singular form in this specification may include the plural form unless the context clearly indicates otherwise.

[0028] In the description of the embodiments, where each layer (film), region, pattern, or structure is described as being formed "on" or "under" the substrate, each layer (film), region, pad, or pattern, "on" and "under" include both being formed "directly" and "indirectly" through another layer. In addition, the reference for the top or bottom of each layer is, in principle, based on the drawings.

[0029] The drawings are intended solely to facilitate an understanding of the concept of the present invention and should not be interpreted as limiting the scope of the invention. Additionally, relative thicknesses, lengths, or sizes in the drawings may be exaggerated for convenience and clarity of explanation.

[0030] Referring to FIG. 1, the combo antenna module is an antenna module mounted on an electronic device and is configured to include a first antenna (10) and a second antenna (20).

[0031] The first antenna (10) is composed of a loop wire coil (21) formed by winding a wire coil (21) multiple times on a virtual winding axis in a plane. The first antenna (10) is composed of a loop wire coil (21) and operates as an antenna in the first frequency band.

[0032] The first antenna (10) is exemplified as a loop coil antenna for wireless power transmission. The first antenna (10) wirelessly receives power from a wireless power transmission antenna built into a charging device. The first antenna (10) may also wirelessly transmit power to a wireless power transmission antenna built into another electronic device. In this case, the first antenna (10) is exemplified as wirelessly transmitting and receiving power through the WPC (Wireless Power Consortium) method.

[0033] The second antenna (20) is composed of an FPCB antenna including an antenna pattern (16) formed on a flexible circuit board (FPCB). The second antenna (20) is composed of an FPCB antenna and operates as an antenna in a second frequency band different from the first frequency.

[0034] The second antenna (20) is exemplified as an FPCB antenna for short-range communication. The second antenna (20) transmits and receives data with an antenna module embedded in another electronic device. At this time, the second antenna (20) is exemplified as wirelessly transmitting and receiving data through NFC (Near Field Communication).

[0035] The combo antenna module integrates a first antenna (10), which is a wire coil (21), and a second antenna (20), which is an FPCB antenna, to maximize space efficiency and enable lightweight and slim design. Accordingly, the application rate of the combo antenna module in electronic devices is increasing in line with the trend of lightweight and slim electronic devices.

[0036] Referring to FIG. 2, in the design of the combo antenna module, a structure is mainly used in which both ends of the first antenna (10), which is a wire coil (21), are joined to the terminal pattern of the second antenna (20), which is a Flexible Printed Circuit Board (FPCB), in order to reduce the overall thickness.

[0037] Since the combo antenna module has a structure in which the first antenna (10), which is a wire antenna, is placed on one side of the second antenna (20), which is an FPCB antenna, an overlapping area (A) of the first antenna (10) and the second antenna (20) occurs, and the overlapping area (A) of the first antenna (10) and the second antenna (20) increases the thickness of the combo antenna module.

[0038] Accordingly, in the design of the combo antenna module, other materials such as a shielding sheet (or, shielding sheet) and a heat-dissipating sheet are removed (or punched out) in the overlapping area (A) to prevent an increase in the thickness of the combo antenna module while ensuring antenna performance.

[0039] Referring to FIG. 3, in the overlapping area (A), the vertical cross-section of the combo antenna module has a heat dissipation sheet (12), a first shielding sheet (13a), a second shielding sheet (13b), a first metal sheet (14; TMK), a base substrate (15), an antenna pattern (16), a second metal sheet (17; BMK), and a wire coil (21) arranged sequentially.

[0040] Based on the drawing, a coverlay sheet (11) may be placed at the top of the overlapping area (A). Between the heat dissipation sheet (12) and the first shielding sheet (13a), and between the first shielding sheet (13a) and the second shielding sheet (13b), a coverlay sheet (11) and an adhesive sheet (18) may be interposed to bond the two adjacent sheets. Between the second shielding sheet (13b) and the first metal sheet (14), an adhesive sheet (18) may be interposed to bond the two sheets.

[0041] In the first shielding sheet (13a) and the second shielding sheet (13b), a receiving space (B) is formed to accommodate a base substrate (15) and an antenna pattern (16) in order to minimize the increase in thickness of the combo antenna module. If the first shielding sheet (13a) and the second shielding sheet (13b) are made of a metal material, there is a possibility that a fine burr (C) may occur during the process of punching the first shielding sheet (13a) and the second shielding sheet (13b) to form the receiving space (B).

[0042] Referring to FIG. 4, during the compression process to minimize the thickness of the combo antenna module, a short circuit occurs between the insulating layer at the bottom of the shielding sheet and the thin coil due to burrs (C) generated on the shielding sheet, resulting in abnormal operation and performance degradation. That is, during the compression process, the insulating material (22) coated on the surface of the wire coil (21) may be damaged due to burrs (C) on the shielding sheet. Due to the damage to the insulating material (22), a short circuit occurs between the shielding sheet and the wire coil (21).

[0043] In particular, the combo antenna module may even cause interference problems with the second antenna (20) for short-range communication, so additional design is required for stable operation.

[0044] Referring to FIG. 5, the combo antenna module may further include an insulating sheet (19) placed between the shielding sheet and the coil to prevent short circuits caused by burrs (C) of the shielding sheet, but if the combo antenna module further includes the insulating sheet (19), the overall thickness of the antenna increases.

[0045] In addition, the combo antenna module may have constraints on the spacing and placement structure between the coil and the FPCB pattern for optimization with the communication antenna.

[0046] Accordingly, the combo antenna module according to an embodiment of the present invention presents a new structure capable of minimizing the thickness of the antenna while maintaining a balance between wireless charging and communication performance.

[0047] Referring to FIG. 6, a combo antenna module according to a first embodiment of the present invention includes a first antenna (100) and a second antenna (200). In the combo antenna module, a heat dissipation sheet (120), a first shielding sheet (130a), a second shielding sheet (130b), a first metal sheet (140), a base substrate (150), an antenna pattern (160), a second metal sheet (170), and a wire coil (210) are sequentially arranged based on a vertical cross-section of an overlapping area (A). Here, the heat dissipation sheet (120), the first shielding sheet (130a), the second shielding sheet (130b), the first metal sheet (140), the base substrate (150), the antenna pattern (160), and the second metal sheet (170) are components of the first antenna (100), and the wire coil (210) is a component of the second antenna (200).

[0048] Hereinafter, the description will be based on the vertical cross-section of the overlapping area (A) of the combo antenna module shown in FIG. 6. Here, the arrangement order shown in FIG. 6 is an example to facilitate the explanation of the combo antenna module according to the first embodiment of the present invention, and the arrangement order may vary depending on the electronic device to which it is applied.

[0049] A coverlay sheet (110) may be placed on the uppermost part of the overlapping area (A). Between the heat dissipation sheet (120) and the first shielding sheet (130a), and between the first shielding sheet (130a) and the second shielding sheet (130b), a coverlay sheet (110) and an adhesive sheet (180) may be interposed to bond the two adjacent sheets. Between the second shielding sheet (130b) and the first metal sheet (140), an adhesive sheet (180) may be interposed to bond the two sheets.

[0050] In order to prevent a short circuit caused by a burr on the shielding sheet (130) when the combo antenna module is compressed, the width of the base material (150) is formed to be wider than the width of the receiving space (B). That is, both ends of the base material (150) are arranged to overlap with the outer area of ​​the receiving space (B). Both ends of the base material (150) are arranged outside the receiving space (B) and overlap with the shielding sheet (130) arranged outside the receiving space (B).

[0051] For example, the width (D2) of the base material (150) is defined as the distance between the left end and the right end of the base material (150) based on the vertical cross-section of the overlapping area, and is formed to be wider than the width (D1) of the receiving space (B).

[0052] Since some sagging may occur during the compression process of the base material (150), the width (D2) of the base material (150) is set so that the gap (G1, G2) between the end of the receiving space (B) and the end of the base material (150) is greater than or equal to the set gap.

[0053] Here, since the setting interval may vary depending on the size of the antenna, the size of the receiving space, the size (width) of the antenna pattern (160), etc., the numerical limitation of the setting interval is omitted.

[0054] The left end of the base material (150) overlaps with the shielding sheet (130) placed on the left side of the receiving space (B), and may be positioned adjacent to the first vertical axis (V1) that divides the shielding sheet (130). The gap (G1) between the left end of the base material (150) and the left end of the receiving space (B) is formed wider than the gap (G3) between the first vertical axis (V1) and the left end of the base material (150).

[0055] The right end of the base material (150) overlaps with the shielding sheet (130) placed on the right side of the receiving space (B), and may be positioned adjacent to the second vertical axis (V2) that divides the shielding sheet (130). The gap (G2) between the right end of the base material (150) and the right end of the receiving space (B) is formed wider than the gap (G4) between the second vertical axis (V2) and the right end of the base material (150).

[0056] Referring to FIG. 7, since the two ends of the base substrate (150) of the combo antenna module are positioned to overlap with the shielding sheet (130) placed outside the receiving space (B), the burrs of the shielding sheet (130) generated during the process of compressing the combo antenna module are prevented from coming into contact with the wire coil (210).

[0057] Accordingly, the combo antenna module can prevent damage to the wire coil (210) caused by the burr of the shielding sheet (130), thereby preventing a short circuit from occurring between the burr of the shielding sheet (130) and the wire coil (210).

[0058] In addition, the combo antenna module is positioned so that the end of the base substrate (150) overlaps with the shielding sheet (130) placed outside the receiving space (B), and is positioned adjacent to the vertical axis that divides the shielding sheet (130) into two, thereby preventing a short circuit from occurring between the burr of the shielding sheet (130) and the wire coil (210) even if an additional compression process is performed to reduce the thickness.

[0059] Referring to FIG. 8, the width (D3) of the second metal sheet (170) is defined as the distance between the left end and the right end of the second metal sheet (170) based on the vertical cross-section of the overlapping area, and is formed to be wider than the width (D1) of the receiving space (B).

[0060] Both ends of the second metal sheet (170) are placed in the outer region of the receiving space (B). Both ends of the second metal sheet (170) are placed outside the receiving space (B) and are positioned to overlap with the shielding sheet (130) placed outside the receiving space (B).

[0061] The left end of the second metal sheet (170) overlaps with the shielding sheet (130) placed on the left side of the receiving space (B), and may be positioned adjacent to the first vertical axis (V1) that divides the shielding sheet (130). The gap (G1') between the left end of the second metal sheet (170) and the end of the receiving space (B) is formed wider than the gap (G3') between the first vertical axis (V1) and the left end of the second metal sheet (170).

[0062] The right end of the second metal sheet (170) overlaps with the shielding sheet (130) placed on the right side of the receiving space (B), and may be positioned adjacent to the second vertical axis (V2) that divides the shielding sheet (130). The gap (G2') between the right end of the second metal sheet (170) and the right end of the receiving space (B) is formed wider than the gap (G4') between the second vertical axis (V2) and the right end of the second metal sheet (170).

[0063] Referring to FIG. 9, since the two ends of the second metal sheet (170) of the combo antenna module are positioned to overlap with the shielding sheet (130) placed outside the receiving space (B), the burrs of the shielding sheet (130) are prevented from coming into contact with the wire coil (210) during the process of compressing the combo antenna module.

[0064] Accordingly, the combo antenna module can prevent damage to the wire coil (210) caused by the burr of the shielding sheet (130), thereby preventing a short circuit from occurring between the burr of the shielding sheet (130) and the wire coil (210).

[0065] Referring to FIG. 10, the width (D2) of the base substrate (150) and the width (D3) of the second metal sheet (170) are formed wider than the width (D1) of the receiving space (B) based on the vertical cross-section of the overlapping area.

[0066] Both ends of the base substrate (150) and both ends of the second metal sheet (170) are positioned in the outer region of the receiving space (B). Both ends of the base substrate (150) and both ends of the second metal sheet (170) are positioned outside the receiving space (B) and are arranged to overlap with the shielding sheet (130) positioned outside the receiving space (B).

[0067] Accordingly, since the two ends of the base substrate (150) and the second metal sheet (170) of the combo antenna module are arranged to overlap with the shielding sheet (130) placed outside the receiving space (B), the burrs of the shielding sheet (130) are prevented from coming into contact with the wire coil (210) during the process of compressing the combo antenna module.

[0068] Accordingly, the combo antenna module can prevent damage to the wire coil (210) caused by the burr of the shielding sheet (130), thereby preventing a short circuit from occurring between the burr of the shielding sheet (130) and the wire coil (210).

[0069] Referring to FIG. 11, in a combo antenna module according to a first embodiment of the present invention, a heat dissipation sheet (120), a first shielding sheet (130a), a second shielding sheet (130b), a first metal sheet (140), a first antenna pattern (160a), a base substrate (150), a second antenna pattern (160b), a second metal sheet (170), and a wire coil (210) may be sequentially arranged based on a vertical cross-section of an overlapping area (A).

[0070] At this time, at least one of the width (D2) of the base material (150) and the width (D3) of the second metal sheet (170) is formed wider than the width (D1) of the receiving space (B) based on the vertical cross-section of the overlapping area.

[0071] At least one end of the base substrate (150) and the second metal sheet (170) is positioned in an outer region of the receiving space (B). At least one end of the base substrate (150) and the second metal sheet (170) is positioned outside the receiving space (B) and is positioned to overlap with the shielding sheet (130) positioned outside the receiving space (B).

[0072] Accordingly, since the combo antenna module is positioned such that at least one end of the base substrate (150) and the second metal sheet (170) overlaps with the shielding sheet (130) positioned outside the receiving space (B), the burrs of the shielding sheet (130) are prevented from coming into contact with the wire coil (210) during the process of compressing the combo antenna module.

[0073] Accordingly, the combo antenna module can prevent damage to the wire coil (210) caused by the burr of the shielding sheet (130), thereby preventing a short circuit from occurring between the burr of the shielding sheet (130) and the wire coil (210).

[0074] Referring to FIG. 12, in a combo antenna module according to a second embodiment of the present invention, a heat dissipation sheet (120), a first shielding sheet (130a), a second shielding sheet (130b), a first metal sheet (140), a base substrate (150), an antenna pattern (160), a second metal sheet (170), and a wire coil (210) are sequentially arranged based on a vertical cross-section of an overlapping area (A). Here, the heat dissipation sheet (120), the first shielding sheet (130a), the second shielding sheet (130b), the first metal sheet (140), the base substrate (150), the antenna pattern (160), and the second metal sheet (170) are components of the first antenna (100), and the wire coil (210) is a component of the second antenna (200).

[0075] A coverlay sheet (110) may be placed on the uppermost part of the overlapping area (A). Between the heat dissipation sheet (120) and the first shielding sheet (130a), and between the first shielding sheet (130a) and the second shielding sheet (130b), a coverlay sheet (110) and an adhesive sheet (180) may be interposed to bond the two adjacent sheets. Between the second shielding sheet (130b) and the first metal sheet (140), an adhesive sheet (180) may be interposed to bond the two sheets.

[0076] In order to prevent a short circuit caused by a burr in the shielding sheet (130) when the combo antenna module is compressed, a gap (D) is formed in the shielding sheet (130) in place of the receiving space of the first embodiment described above.

[0077] To this end, the shielding sheet (130) is composed of a laminate in which a plurality of magnetic sheets are stacked. The shielding sheet (130) includes a magnetic sheet with a hole formed therein, and the hole formed in the magnetic sheet forms a void (D) in the shielding sheet (130). The shielding sheet (130) has the magnetic sheets with the hole formed therein arranged on the upper side, and plate-shaped magnetic sheets without a hole formed therein arranged on the lower side. At this time, the void (D) is formed by stacking a plurality of holes.

[0078] Accordingly, the void (D) is formed in the shape of a groove that does not penetrate the shielding sheet (130). The void (D) is formed to include the overlapping area (A) within the entire area of ​​the shielding sheet (130). The void (D) consists of a groove formed on the upper surface of the shielding sheet (130) through a process such as punching.

[0079] For example, referring to FIG. 13, the shielding sheet (130) is composed of a laminate in which a first shielding sheet (130a) and a second shielding sheet (130b) are laminated.

[0080] The first shielding sheet (130a) is placed on top of the second shielding sheet (130b). A through hole (132) is formed in the first shielding sheet (130a). At this time, the through hole (132) is formed by penetrating the first shielding sheet (130a) and is formed to include both the overlapping area (A) and the overlapping area. The second shielding sheet (130b) is composed of a plate-shaped magnetic material and is placed on the bottom of the first shielding sheet (130a).

[0081] Accordingly, the shielding sheet (130) forms a plate-shaped magnetic body having a groove-shaped void (D) formed on its upper surface. The void (D) can be defined as an area enclosed by the inner wall surface of the through hole (132) and the upper surface of the second shielding sheet (130b).

[0082] The width (G5) of the gap (D) can be defined as the distance between the left end and the right end of the gap (D) based on the vertical cross-section of the overlapping area (A). At this time, the width (G5) of the gap (D) is formed to be wider than the width of the first metal sheet (140), base substrate (150), antenna pattern (160), and second metal sheet (170) placed below the magnetic sheet (130).

[0083] The combo antenna module according to the second embodiment of the present invention forms a gap (D) in place of the receiving space (B) in the shielding sheet (130), so the thickness can be partially reduced through a compression process, although it is less than that of the combo antenna module according to the first embodiment of the present invention.

[0084] In addition, the combo antenna module according to the second embodiment of the present invention can prevent burrs from being formed on the lower surface of the shielding sheet (130) facing the wire coil (210) because holes are formed only in the first shielding sheet placed on the upper side.

[0085] In addition, the combo antenna module according to the second embodiment of the present invention can prevent short circuits between the shielding sheet (130) and the wire coil (210) by preventing the formation of burrs on the shielding sheet (130).

[0086] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

Claims

1. Includes a first antenna and a second antenna, The vertical cross-section of the overlapping region where the first antenna and the second antenna are overlapped is, Shielding sheet; A first metal sheet disposed below the shielding sheet above; An antenna pattern is formed, and a base substrate disposed on the lower part of the first metal sheet; A second metal sheet disposed at the lower part of the above-mentioned base material; and It includes a wire coil positioned at the bottom of the above antenna pattern, and A combo antenna module having a gap formed on the upper surface of the shielding sheet facing the second antenna.

2. In Paragraph 1, The above-mentioned gap is a groove-shaped combi antenna module that does not penetrate the shielding sheet.

3. In Paragraph 1, The shielding sheet above is a laminate in which a plurality of magnetic sheets are laminated, and A combo antenna module having a through hole formed in the magnetic sheet positioned in the direction of the upper surface of the shielding sheet among the plurality of magnetic sheets.

4. In Paragraph 3, The above gap is a combo antenna module formed by stacking multiple through holes.

5. In Paragraph 1, The shielding sheet above is, A plate-shaped first shielding sheet having a through hole formed therein; and A combo antenna module comprising a plate-shaped second shielding sheet disposed below the first shielding sheet.

6. In Paragraph 5, A combo antenna module in which the above-mentioned gap is defined as an area enclosed by the inner wall surface of the through hole and the upper surface of the second shielding sheet.

7. In Paragraph 1, Based on the vertical cross-section of the above-mentioned overlapping area, A combo antenna module in which the width of the above gap is formed wider than the width of the first metal sheet, the base substrate, and the second metal sheet.