Antenna module configured in vehicle

Abstract

A vehicle includes: a metal frame in which an opening is formed; the glass panel comprises a transparent area and a non-transparent area; and an antenna assembly disposed on the glass panel. The antenna assembly includes: a first dielectric substrate disposed on the transparent region of the glass panel, a first transparent antenna and a second transparent antenna being formed on one side surface of the first dielectric substrate; a second dielectric substrate including a first ground region and a second ground region and disposed in the recess of the metal frame and the opaque region of the glass panel; and a groove pattern formed in a pattern region disposed between the first ground region and the second ground region.

Description

Technical Field

[0001] The present disclosure relates to a transparent antenna configured for a vehicle. Certain embodiments relate to an antenna assembly implemented with a transparent material so that the antenna area cannot be identified on the vehicle glass. Background Art

[0002] Vehicles can perform wireless communication services with other vehicles or surrounding objects, infrastructure or base stations. In this regard, a variety of communication services can be provided by a wireless communication system that applies LTE communication technology or 5G communication technology. On the other hand, a portion of the LTE frequency band can be allocated to provide 5G communication services.

[0003] On the other hand, since the vehicle body and the roof are formed of metal materials, there is a problem of blocking radio waves. Therefore, an additional antenna structure can be arranged on the upper part of the vehicle body or the roof. Alternatively, when the antenna structure is arranged on the lower part of the vehicle body or the roof, the part of the vehicle body or the roof corresponding to the antenna arrangement area can be formed of a non-metallic material.

[0004] However, from the design point of view, the vehicle body or the roof needs to be formed in one piece. In this case, the appearance of the vehicle body or the roof may be formed of a metal material. Therefore, there is a problem that the vehicle body or the roof may cause the antenna efficiency to be greatly reduced.

[0005] In order to increase the communication capacity without changing the exterior design of the vehicle, a transparent antenna can be placed on the glass of the vehicle window. However, there is a problem that the electrical loss of the transparent material antenna deteriorates the antenna radiation efficiency and impedance bandwidth characteristics.

[0006] The vehicle antenna assembly implemented with such a transparent antenna can be configured to perform 4G wireless communication and 5G wireless communication. On the other hand, the vehicle antenna assembly must be configured to perform Wi-Fi (wireless high fidelity) and Bluetooth (BT: bluetooth) wireless communication in addition to 4G wireless communication and 5G wireless communication. If the antenna module capable of performing Wi-Fi and Bluetooth (BT) wireless communication is configured separately from the antenna module performing 4G wireless communication and 5G wireless communication, there is a problem that the size of the entire antenna assembly increases. Summary of the invention

[0007] Problem to be solved

[0008] The purpose of this specification is to solve the above problems and other problems. In addition, another purpose of this specification is to provide a broadband transparent antenna assembly that can be configured on vehicle glass.

[0009] Another purpose of this specification is to provide a WIFI / BT antenna structure design that can coexist with the transparent antenna, taking into account the configuration structure of the transparent antenna configured on the vehicle glass and the vehicle's own structure.

[0010] Another purpose of the present specification is to optimize the electrical characteristics of the antenna in a structure equipped with a WIFI / BT antenna and a transparent antenna.

[0011] Another object of the present specification is to minimize the radiation loss effect of the transparent antenna for vehicle glass and the WIFI / BT antenna caused by the metal frame of the vehicle.

[0012] Another purpose of this specification is to maintain the isolation between the WIFI / BT antenna and the transparent antenna below a specified level.

[0013] Still another object of the present specification is to provide a broadband antenna structure of a transparent material that not only operates in a broadband but also can reduce feed loss and improve antenna efficiency.

[0014] Another object of the present specification is to improve the efficiency of a feeding structure of a broadband transparent antenna assembly that can be configured on vehicle glass and to ensure the reliability of a mechanical structure including the feeding structure.

[0015] Technical solutions to the problem

[0016] A vehicle according to one aspect of the present specification for achieving the above or other purposes includes: a metal frame having an opening formed inside the metal frame; a glass panel including a transparent area and an opaque area; and an antenna assembly disposed on the glass panel. The antenna assembly includes: a first dielectric substrate disposed on the transparent area of ​​the glass panel, with a first transparent antenna and a second transparent antenna formed on one side of the first dielectric substrate; a second dielectric substrate including a first grounding area and a second grounding area disposed in a recess of the metal frame and the opaque area of ​​the glass panel; and a groove pattern formed in a pattern area disposed between the first grounding area and the second grounding area.

[0017] As an embodiment, the groove pattern may include: a first groove pattern, which is vertically formed on the pattern area along an axial direction and is configured to radiate signals of a first working frequency band; and a second groove pattern, which is horizontally formed from a portion of the first groove pattern along another axial direction perpendicular to the one axial direction and is configured to radiate signals of a second working frequency band higher than the first working frequency band.

[0018] As an embodiment, the first groove pattern, the third groove pattern, and the fourth groove pattern may be configured to radiate a first signal of the first working frequency band toward the transparent area of ​​the glass panel. The lower area of ​​the first groove pattern, the second groove pattern, the third groove pattern, and the fourth groove pattern may be configured to radiate a second signal of the second working frequency band toward the transparent area of ​​the glass panel. The signals of the first working frequency band and the second working frequency band may be Wi-Fi signals or Bluetooth signals.

[0019] As an embodiment, the groove pattern may further include a fifth groove pattern, the fifth groove pattern being horizontally formed from the second portion of the first groove pattern along another axial direction perpendicular to the one axial direction, and being arranged to be parallel to the second groove pattern. The second groove pattern may be configured to radiate a second signal of a first sub-band of the second working frequency band. The fifth groove pattern may be configured to radiate a third signal of a second sub-band of the second working frequency band that is higher than the first sub-band.

[0020] As an embodiment, the second groove pattern may include: a first sub-groove pattern, one end of which is formed by extending from an end of the first groove pattern and formed perpendicular to the first groove pattern; and a second sub-groove pattern, which is formed perpendicular to the first sub-groove pattern from the end of the first sub-groove pattern and arranged parallel to the first groove pattern. The groove pattern may also include a fifth groove pattern, which is horizontally formed from a portion of the second sub-groove pattern along another axial direction perpendicular to the one axial direction. The second sub-groove pattern of the second groove pattern may be configured to radiate a second signal of a first sub-band of the second working frequency band. The fifth groove pattern may be configured to radiate a third signal of a second sub-band of the second working frequency band that is higher than the first sub-band.

[0021] As an embodiment, the second groove pattern may include: a first sub-groove pattern, one end of which is formed by extending from the end of the first groove pattern and formed perpendicular to the first groove pattern; and a second sub-groove pattern, which is formed perpendicular to the first sub-groove pattern from the end of the first sub-groove pattern and arranged parallel to the first groove pattern. The groove pattern may also include: a fifth groove pattern, which is horizontally formed from the end of the second sub-groove pattern along another axial direction perpendicular to the one-axis direction; and a sixth groove pattern, which is vertically formed from the end of the fifth groove pattern along the one-axis direction. The second sub-groove pattern of the second groove pattern may be configured to radiate a second signal of a first sub-band of the second working frequency band. The sixth groove pattern may be configured to radiate a third signal of a second sub-band of the second working frequency band that is higher than the first sub-band.

[0022] As an embodiment, the first transparent antenna may include: a first conductive pattern, including a first part and a second part, the first part is perpendicularly connected to the second part, and the second part is electrically connected to the first feeding pattern; a second conductive pattern, electrically connected to the first part of the first ground conductive pattern of the first ground area; and a third conductive pattern, electrically connected to the second part of the first ground conductive pattern, the size of the second conductive pattern is smaller than the size of the third conductive pattern, the second conductive pattern is arranged between the first part of the first conductive pattern and the first ground conductive pattern, and the first part of the first conductive pattern and the third conductive pattern are arranged on opposite sides with the second part of the first conductive pattern as a reference.

[0023] As an embodiment, the second transparent antenna may include: a fourth conductive pattern, including a third portion and a fourth portion, the third portion being vertically connected to the fourth portion, the fourth portion being electrically connected to the second feeding pattern; a fifth conductive pattern being electrically connected to the first portion of the second ground conductive pattern; and a sixth conductive pattern being electrically connected to the second portion of the second ground conductive pattern, the size of the fifth conductive pattern being smaller than the size of the sixth conductive pattern, the fifth conductive pattern being arranged between the third portion of the fourth conductive pattern and the second ground conductive pattern, the third portion of the fourth conductive pattern and the sixth conductive pattern being arranged on opposite sides with respect to the fourth portion of the fourth conductive pattern. The third conductive pattern may face the sixth conductive pattern.

[0024] As an embodiment, one side end of the pattern area where the groove pattern is formed may be spaced apart from the other side end of the first grounding area by a first spacing distance. The other side end of the pattern area may be spaced apart from one side end of the second grounding area by a second spacing distance that is the same as the first spacing distance. The first spacing distance and the second spacing distance may be longer than the horizontal distance between the third conductive pattern constituting the first transparent antenna and the sixth conductive pattern constituting the second transparent antenna.

[0025] As an embodiment, a first gap distance may be formed from one end of the pattern area where the groove pattern is formed to the boundary side of the third conductive pattern constituting the first transparent antenna. A second gap distance that is the same as the first gap distance may be formed from the other end of the pattern area to the boundary side of the sixth conductive pattern constituting the second transparent antenna. The first gap distance and the second gap distance may be set to αxλmin of the wavelength λmin corresponding to the lowest frequency of the first working frequency band, where α is a positive real number.

[0026] As an embodiment, the first conductive pattern and the third conductive pattern may operate in a first dipole antenna mode in a first frequency band. The first conductive pattern and the third conductive pattern may form an asymmetric structure. The fourth conductive pattern and the sixth conductive pattern may operate in a second dipole antenna mode in the first frequency band. The fourth conductive pattern and the sixth conductive pattern may form an asymmetric structure.

[0027] As an embodiment, the first conductive pattern may operate in a first monopole antenna mode in a second frequency band higher than the first frequency band. The fourth conductive pattern may operate in a second monopole antenna mode in the second frequency band. The groove pattern may operate in a first groove mode through the first groove pattern in the first working frequency band. The second frequency band and the first working frequency band may overlap in at least a portion of the frequency band. The third conductive pattern may be arranged between the first conductive pattern and the first groove pattern to prevent interference between a first current component formed in a horizontal direction of the first conductive pattern and a second current component formed in a vertical direction of the first groove pattern.

[0028] As an embodiment, the second conductive pattern can operate as a radiator in a third frequency band higher than the second frequency band. The fifth conductive pattern can operate as a radiator in the third frequency band. The groove pattern can operate in the first groove mode through the second groove pattern in the second working frequency band.

[0029] The third frequency band and the third operating frequency band may overlap in at least a portion of the frequency band. The third conductive pattern may be disposed between the second conductive pattern and the second groove pattern to prevent interference between a third current component in a first horizontal direction formed in the second conductive pattern and a fourth current component in a second horizontal direction opposite to the first horizontal direction formed in the second groove pattern.

[0030] As an embodiment, the vertical length of the first groove pattern in the one-axis direction may be formed as a first length and a first width within a prescribed range based on 10 mm. The horizontal length of the second groove pattern in the other-axis direction may be formed as a second length and a second width within a prescribed range based on 6.8 mm.

[0031] As an embodiment, a signal may be applied through a feed pattern formed at a lower portion of a third dielectric substrate having the pattern area formed therein, and radiated through the third groove pattern. The third groove pattern may be formed with a third length as a horizontal length in the other axial direction and a third width. The third width of the third groove pattern may be set to be narrower than the first width of the first groove pattern and the second width of the second groove pattern.

[0032] A vehicle in another aspect of the present specification includes: a metal frame having an opening formed inside the metal frame; a glass panel including a transparent area and an opaque area; and an antenna assembly disposed on the glass panel. The antenna assembly includes: a first dielectric substrate disposed on the transparent area of ​​the glass panel, with a first transparent antenna and a second transparent antenna formed on a side surface of the first dielectric substrate; a second dielectric substrate including a first grounding area and a second grounding area disposed in a recess of the metal frame and the opaque area of ​​the glass panel; and a third dielectric substrate disposed apart from one side of at least one of the first grounding area and the second grounding area. The third dielectric substrate may include a groove pattern formed in a pattern area on one side of the third dielectric substrate.

[0033] As an embodiment, the groove pattern may include: a first groove pattern, which is vertically formed on the pattern area along an axial direction and is configured to radiate signals of a first working frequency band; and a second groove pattern, which is horizontally formed from a portion of the first groove pattern along another axial direction perpendicular to the one axial direction and is configured to radiate signals of a second working frequency band higher than the first working frequency band.

[0034] As an embodiment, the first groove pattern may form a vertical groove region, and the second groove pattern may form a horizontal groove region along a first direction of the other axial direction. The groove pattern may include: a third groove pattern, one end of which extends from one end of the first groove pattern and is horizontally formed along a second direction of the other axial direction, the third groove pattern being configured to feed a signal of the first working frequency band or the second working frequency band; and a fourth groove pattern, one end of which extends from the other end of the third groove pattern and is formed to be parallel to the first groove pattern.

[0035] As an embodiment, the first groove pattern, the third groove pattern, and the fourth groove pattern may be configured to radiate a first signal of the first working frequency band toward the transparent area of ​​the glass panel. The lower area of ​​the first groove pattern, the second groove pattern, the third groove pattern, and the fourth groove pattern may be configured to radiate a second signal of the second working frequency band toward the transparent area of ​​the glass panel. The signals of the first working frequency band and the second working frequency band may be Wi-Fi signals or Bluetooth signals.

[0036] As an embodiment, the first transparent antenna may include: a first conductive pattern, including a first part and a second part, the first part is perpendicularly connected to the second part, and the second part is electrically connected to the first feeding pattern; a second conductive pattern, electrically connected to the first part of the first ground conductive pattern of the first ground area; and a third conductive pattern, electrically connected to the second part of the first ground conductive pattern, the size of the second conductive pattern is smaller than the size of the third conductive pattern, the second conductive pattern is arranged between the first part of the first conductive pattern and the first ground conductive pattern, and the first part of the first conductive pattern and the third conductive pattern are arranged on opposite sides with the second part of the first conductive pattern as a reference.

[0037] As an embodiment, the second transparent antenna may include: a fourth conductive pattern, including a third portion and a fourth portion, the third portion being vertically connected to the fourth portion, the fourth portion being electrically connected to the second feeding pattern; a fifth conductive pattern being electrically connected to the first portion of the second ground conductive pattern; and a sixth conductive pattern being electrically connected to the second portion of the second ground conductive pattern, the size of the fifth conductive pattern being smaller than the size of the sixth conductive pattern, the fifth conductive pattern being arranged between the third portion of the fourth conductive pattern and the second ground conductive pattern, the third portion of the fourth conductive pattern and the sixth conductive pattern being arranged on opposite sides with respect to the fourth portion of the fourth conductive pattern. The third conductive pattern may face the sixth conductive pattern.

[0038] As an embodiment, a second groove pattern area may be further included, wherein the second groove pattern area is formed in a pattern area configured between the first grounding area and the second grounding area. One side end of the pattern area formed with the groove pattern may be configured to be separated from one side end of the first grounding area by a first separation distance. The other side end of the pattern area formed with the second groove pattern area may be configured to be separated from one side end of the second grounding area by a second separation distance that is the same as the first separation distance. The first separation distance and the second separation distance may be longer than the horizontal distance between the third conductive pattern constituting the first transparent antenna and the sixth conductive pattern constituting the second transparent antenna.

[0039] As an embodiment, a first gap distance may be formed from one side end of the pattern area where the groove pattern is formed to the boundary side of the first conductive pattern constituting the first transparent antenna. A second gap distance that is the same as the first gap distance may be formed from the other side end of the pattern area where the second groove pattern area is formed to the boundary side of the sixth conductive pattern constituting the second transparent antenna. The first gap distance and the second gap distance may be set to αxλmin of the wavelength λmin corresponding to the lowest frequency of the first working frequency band, where α is a positive real number.

[0040] Effects of the Invention

[0041] Next, the technical effects of the broadband transparent antenna assembly that can be configured on the vehicle glass as described above will be described.

[0042] According to the present specification, a broadband transparent antenna assembly having a plurality of conductive patterns that can be arranged on vehicle glass is provided, thereby enabling 4G / 5G broadband wireless communication in the vehicle.

[0043] According to this specification, considering the configuration structure of the transparent antenna configured on the vehicle glass and the vehicle's own structure, the WIFI / BT antenna structure that can coexist with the transparent antenna is configured in the opaque area of ​​the vehicle glass, thereby minimizing the size of the entire antenna assembly.

[0044] According to the present specification, in a structure including a WIFI / BT antenna and a transparent antenna, electrical characteristics of the antenna, such as impedance matching characteristics of the antenna and antenna efficiency, can be optimized.

[0045] According to the present specification, the WIFI / BT antenna for vehicle glass can be guided to radiate from the opaque area toward the glass, thereby minimizing the radiation loss effect caused by the metal frame of the frit portion of the opaque area.

[0046] According to the present specification, a WIFI / BT antenna is implemented by a groove pattern of a dielectric substrate, and is configured so that the WIFI / BT antenna is separated from the conductive pattern of a transparent antenna by a predetermined interval or more, thereby being able to maintain the isolation between the WIFI / BT antenna and the transparent antenna below a predetermined level.

[0047] According to the present specification, a broadband antenna structure made of a transparent material can be provided that can reduce feed loss and improve antenna efficiency while operating in a broadband.

[0048] According to the present specification, it is possible to improve the efficiency of a feeding structure of a broadband transparent antenna assembly that can be disposed on vehicle glass, and ensure the reliability of a mechanical structure including the feeding structure.

[0049] The following detailed description will further clarify the scope of the additional application of this specification. However, since a person skilled in the art can clearly understand the various changes and modifications within the concept and scope of the present invention, it should be understood that the specific embodiments of the preferred embodiments described in detail and this specification are only examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 FIG. 1 is a diagram showing glass of a vehicle on which an antenna structure according to an embodiment of the present specification can be arranged.

[0051] Figure 2a Indicated in Figure 1 A front view of a vehicle in which antenna assemblies are disposed at different regions of a front glass of the vehicle.

[0052] Figure 2b Indicated in Figure 1 A perspective view of the interior front of a vehicle in which antenna assemblies are arranged at different areas of a front glass of the vehicle.

[0053] Figure 2c Indicated in Figure 1A side perspective view of a vehicle with an antenna assembly configured on an upper glass of the vehicle.

[0054] Figure 3 Indicates the type of V2X application.

[0055] Figure 4 This is a block diagram for explaining a vehicle and an antenna system mounted on the vehicle according to an embodiment of the present specification.

[0056] Figure 5a to Figure 5c This specification shows a configuration in which the antenna assembly is disposed on a vehicle glass.

[0057] Figure 6a Various embodiments of the frit pattern of this specification are shown. Figure 6b and Figure 6c A transparent antenna pattern according to an embodiment and a structure in which the transparent antenna pattern is arranged on vehicle glass are shown.

[0058] Figure 7a Showing the front view and cross-sectional view of the transparent antenna assembly of the present specification. Figure 7b It is a diagram showing the mesh structure of the metal mesh radiator area and the virtual metal mesh area according to the embodiment.

[0059] Figure 8a Represents the layered structure of the antenna module and the feeding module. Figure 8b It represents a layered structure in which an antenna module and a feeding structure are combined and an opaque substrate including a combined portion.

[0060] Figure 9a The figure shows the bonding structure of the transparent antenna disposed in the transparent area and the frit area of ​​the vehicle glass.

[0061] Figure 9b It will form Figure 9a A magnified front view of the area where the transparent antenna glass is bonded to the vehicle's main structure. Fig.9c Indicates observation from different positions Figure 9b A cross-sectional view of the combined structure of vehicle glass and main structure.

[0062] Fig.10 2 is a diagram showing a stacked structure of an antenna assembly according to an embodiment and attachment areas to a vehicle glass and a vehicle frame.

[0063] Fig.11 The present invention shows a structure in which a glass panel of a vehicle on which an antenna unit is formed is arranged on a metal frame of a vehicle body.

[0064] Fig.12a Indicates a slot antenna region that can be configured between the first ground region and the second ground region. On the other hand, Figure 12bFIG. 4 shows an antenna assembly structure in which a slot antenna is arranged between a first transparent antenna and a second transparent antenna according to an embodiment.

[0065] Fig.13a 13b represents the electric field distribution in the first frequency band and the second frequency band formed by the slot antenna structure formed in the groove pattern.

[0066] Figures 14a to 14c denoted a structure of a slot antenna formed by a groove pattern according to an embodiment.

[0067] Figures 15a to 15c Yes means Figure 12b A conceptual diagram of the principle of operation of the antenna assembly in each frequency band.

[0068] Fig.16a and 16b FIG. 1 is a diagram showing a current direction formed in a conductive pattern of an antenna assembly and a current direction formed in a slot antenna according to an embodiment.

[0069] Fig.17a The reflection coefficient characteristics of the slot antenna and the isolation characteristics between the slot antenna and the first transparent antenna and the second transparent antenna are shown.

[0070] Fig.17b The antenna efficiencies of the first transparent antenna and the second transparent antenna at each frequency are shown depending on whether or not the slot antenna is provided.

[0071] Fig.17c Indicates the antenna efficiency of the slot antenna operating in the Wi-Fi / BT frequency band at each frequency.

[0072] Fig.18a and Fig.18b : shows the structure of an antenna assembly equipped with a slot antenna according to an embodiment. On the other hand, Fig.18c Indicates 18a and Fig.18b The stacked structure of the antenna assembly.

[0073] Fig.19a The structure of an antenna assembly of a transparent antenna structure represents another aspect of the present disclosure. Fig.19b express Fig.19a The second dielectric substrate of the antenna assembly is configured in the opaque area of ​​the glass panel.

[0074] Fig.19c The process flow of combining the antenna assembly of the embodiment with the glass panel is shown.

[0075] Fig.20a A structure of an antenna assembly showing a transparent antenna structure according to still another aspect of the present specification.

[0076] Fig.20bexpress Fig.20a A process flow chart of a structure in which the feeding structure of the antenna assembly is configured in the opaque area of ​​the glass panel.

[0077] Fig.21 This shows a configuration in which a plurality of antenna modules disposed at different positions of the vehicle of this specification are combined with other components of the vehicle. DETAILED DESCRIPTION

[0078] The embodiments disclosed in this specification are described in detail below with reference to the accompanying drawings. Here, the same or similar constituent elements are given the same figure marks regardless of the figure numbers, and repeated descriptions thereof will be omitted. The suffixes "module" and "unit" used in the following description for the constituent elements are only given or mixed for the convenience of writing the specification, and they themselves do not have mutually distinguishing meanings or functions. In addition, in the process of describing the embodiments disclosed in this specification, if it is determined that the specific description of the relevant known technology will cause confusion with the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only for the purpose of facilitating the understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification should not be limited by the attached drawings, but should be understood as covering all changes, equivalents and even substitutes included in the ideas and technical scope of the present invention.

[0079] Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from other components.

[0080] If a certain component is mentioned as being "connected" or "coupled" to another component, it may be directly connected to or coupled to the other component, but it can also be understood that there are other components between them. Conversely, if a certain component is mentioned as being "directly connected" or "directly coupled" to another component, it should be understood that there are no other components between them.

[0081] Unless the context clearly indicates otherwise, expressions in the singular shall include expressions in the plural.

[0082] In the present application, terms such as "including" or "having" are only used to specify the existence of features, numbers, steps, operations, constituent elements, parts or their combinations recorded in the specification, and are not intended to preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, constituent elements, parts or their combinations.

[0083] The antenna system described in this specification can be mounted on a vehicle. The configuration and operation of the embodiments described in this specification can also be applied to a communication system, i.e., an antenna system, mounted on a vehicle. In this regard, the antenna system mounted on a vehicle may include a plurality of antennas and a transceiver circuit and a processor for controlling the plurality of antennas.

[0084] Hereinafter, an antenna assembly (antenna module) that can be placed on a vehicle window and a vehicle antenna system including the antenna assembly are described. Herein, the antenna assembly refers to a structure in which a conductive pattern is bonded to a dielectric substrate, and may also be referred to as an antenna module.

[0085] Regarding this, Figure 1 FIG. 1 is a diagram showing a glass of a vehicle on which an antenna structure can be configured according to an embodiment of the present specification. Figure 1 The vehicle 500 may include a front glass 310, a door glass 320, a rear glass 330, and a corner window glass 340. On the other hand, the vehicle 500 may further include an upper glass 350 formed at a roof in an upper region.

[0086] Therefore, the glass constituting the window of the vehicle 500 may include a front glass 310 arranged in the front area of ​​the vehicle, a door glass 320 arranged in the door area of ​​the vehicle, and a rear glass 330 arranged in the rear area of ​​the vehicle. On the other hand, the glass constituting the window of the vehicle 500 may also include a corner window glass 340 arranged in a part of the door area of ​​the vehicle. In addition, the glass constituting the window of the vehicle 500 may also include an upper glass 350, which is separated from the rear glass 330 and is arranged in the upper area of ​​the vehicle. Therefore, each glass constituting the window of the vehicle 500 may also be referred to as a window.

[0087] The front glass 310 prevents the wind from the front direction from blowing into the interior of the vehicle, and thus can be called a front windshield. The front glass 310 can be formed in a double-layer joint structure with a thickness of about 5.0 to 5.5 mm. The front glass 310 can be formed in a joint structure of glass / anti-shatter film / glass.

[0088] The door glass 320 may be formed of a double-layered joint structure or a single-layered compressed glass. The rear glass 330 may be formed of a double-layered joint structure or a single-layered compressed glass having a thickness of about 3.5 to 5.5 mm. In the rear glass 330, a distance is required between the hot wire, the AM / FM antenna, and the transparent antenna. The corner window glass 340 may be formed of a single-layered compressed glass having a thickness of about 3.5 to 4.0 mm, but is not limited thereto.

[0089] The size of the corner window glass 340 varies according to the type of vehicle, and the size of the corner window glass 340 may be smaller than the size of the front glass 310 and the size of the rear glass 330 .

[0090] Hereinafter, the structure in which the antenna assembly of this specification is arranged in different regions of the front glass of the vehicle will be described. The antenna assembly attached to the vehicle glass can be implemented as a transparent antenna. Figure 2a Indicated in Figure 1 A front view of a vehicle in which antenna assemblies are disposed at different regions of a front glass of the vehicle. Figure 2b Indicated in Figure 1 A perspective view of the interior front of a vehicle in which antenna assemblies are arranged at different areas of a front glass of the vehicle. Figure 2c Indicated in Figure 1 A side perspective view of a vehicle with an antenna assembly configured on an upper glass of the vehicle.

[0091] Reference Figure 2a , a front view of a vehicle 500 shows a configuration of a transparent antenna for a vehicle that can be configured with the present specification. A pane assembly 22 may include an antenna in an upper region 310a. The pane assembly 22 may include an antenna in an upper region 310a, an antenna in a lower region 310b, and / or an antenna in a side region 310c. In addition, the pane assembly 22 may include a translucent pane glass 26 formed of a dielectric substrate. The antenna in the upper region 310a, the antenna in the lower region 310b, and / or the antenna in the side region 310c are configured to support at least one of various communication systems.

[0092] The antenna module 1100 can be implemented in the upper area 310a, or the lower area 310b or the side area 310c of the front glass 310. In the case where the antenna module 1100 is configured in the lower area 310b of the front glass 310, the antenna module 1100 can be extended to the main body 49 of the lower area of ​​the translucent window glass 26. The main body 49 of the lower area of ​​the translucent window glass 26 can be implemented to have lower transparency than other parts. In the main body 49 of the lower area of ​​the translucent window glass 26, a part of the feed part or other interface lines can be implemented. The connector assembly 74 can be implemented in the main body 49 of the lower area of ​​the translucent window glass 26. The main body 49 of the lower area can constitute a vehicle body of a metal material.

[0093] Reference Figure 2b The antenna assembly 1000 may include a telematics control unit (TCU) 300 and an antenna module 1100. The antenna module 1100 may be disposed in different regions of the vehicle glass.

[0094] Reference Figure 2a and Figure 2b , the upper area 310a, the lower area 310b and / or the side area 310c of the vehicle glass may be configured with an antenna assembly. Figure 2a to Figure 2c Antenna assemblies may be disposed on the front glass 310 , the rear glass 330 , the corner window glass 340 , and the upper glass 350 of the vehicle.

[0095] Reference Figure 2a to Figure 2c , the antenna in the upper area 310a of the front glass 310 of the vehicle can be configured to operate in the LB (low band), MB (mid band), HB (high band) and 5G Sub6 bands of the 4G / 5G communication system. The antenna in the lower area 310b and / or the antenna in the side area 310c can also be configured to operate in the LB, MB, HB and 5G Sub6 bands of the 4G / 5G communication system. In the rear glass 330 of the vehicle, the antenna structure 1100b can also be configured to operate in the LB, MB, HB and 5G Sub6 bands of the 4G / 5G communication system. In the upper glass 350 of the vehicle, the antenna structure 1100c can also be configured to operate in the LB, MB, HB and 5G Sub6 bands of the 4G / 5G communication system. In the corner window glass 350 of the vehicle, the antenna structure 1100d can also be configured to operate in the LB, MB, HB and 5G Sub6 bands of the 4G / 5G communication system.

[0096] At least a portion of the outer contour area of ​​the front glass 310 of the vehicle may be formed by the translucent window glass 26. The translucent window glass 26 may include: a first portion, formed with a portion of the antenna and the feeder; and a second portion, formed with a portion of the feeder and a dummy structure. In addition, the translucent window glass 26 may also include a dummy area where no conductive pattern is formed. As an example, the transparent area of ​​the window glass assembly 22 may be formed to be transparent to ensure light transmission and field of view.

[0097] Although the example in which the conductive pattern can be formed in a part of the front glass 310 is described, it can be extended to be formed in Figure 1 The side glass 320, the rear glass 330 and any other glass structures of the vehicle 500 can be seen by a passenger or a driver through the window glass assembly 22. In addition, the passenger or the driver can see the road and the surrounding environment without being obstructed by the antenna of the upper area 310a, the antenna of the lower area 310b and / or the antenna of the side area 310c.

[0098] Vehicle 500 may be configured to communicate with pedestrians, surrounding infrastructure, and / or servers in addition to surrounding vehicles. Figure 3 Indicates the type of V2X application. Figure 3 V2X (Vehicle-to-Everything) communication includes V2V (Vehicle-to-Vehicle) which refers to the communication between vehicles, V2I (Vehicle to Infrastructure) which refers to the communication between vehicles and eNB or RSU (Road Side Unit), V2P (Vehicle-to-Pedestrian) which refers to the communication between vehicles and terminals carried by individuals (pedestrians, cyclists, vehicle drivers or passengers), V2N (vehicle-to-network), and other communications between vehicles and all individuals.

[0099] on the other hand, Figure 4 This is a block diagram for explaining a vehicle and an antenna system mounted on the vehicle according to an embodiment of the present specification.

[0100] The vehicle 500 may include a communication device 400 and a processor 570. The communication device 400 may correspond to a telematics control unit of the vehicle 500.

[0101] The communication device 400 is a device for performing communication with an external device. Here, the external device may be another vehicle, a mobile terminal or a server. In order to perform communication, the communication device 400 may include at least one of a transmitting antenna, a receiving antenna, an RF (Radio Frequency) circuit and an RF element capable of implementing various communication protocols. The communication device 400 may include a short-range communication unit 410, a location information unit 420, a V2X communication unit 430, an optical communication unit 440, a 4G wireless communication module 450 and a 5G wireless communication module 460. The communication device 400 may include a processor 470. According to an embodiment, the communication device 400 may also include other constituent elements in addition to the described constituent elements, or may not include a part of the described constituent elements.

[0102] The 4G wireless communication module 450 and the 5G wireless communication module 460 can perform wireless communication with more than one communication system through one or more antenna modules. The 4G wireless communication module 450 can send and / or receive signals with a device in the first communication system through a first antenna module. In addition, the 5G wireless communication module 460 can send and / or receive signals with a device in the second communication system through a second antenna module. The 4G wireless communication module 450 and the 5G wireless communication module 460 can also be physically implemented as an integrated communication module. Here, the first communication system can be an LTE communication system, and the second communication system can be a 5G communication system. However, the first communication system and the second communication system are not limited to this, and can be extended to any communication system that is different from each other.

[0103] The processor of the device in the vehicle 500 can be implemented by an MCU (Micro Control Unit) or a modem. The processor 470 of the communication device 400 is equivalent to a modem, and the processor 470 can be implemented as an integrated modem. The processor 470 can obtain surrounding information from other surrounding vehicles, objects, or infrastructure through wireless communication. The processor 470 can use the acquired surrounding information to perform vehicle control.

[0104] The processor 570 of the vehicle 500 may be a processor of a CAN (Car Area Network) or an ADAS (Advanced Driver Assistance System), but is not limited thereto. When the vehicle 500 is implemented in a distributed control manner, the processor 570 of the vehicle 500 may be replaced by a processor of each device.

[0105] On the other hand, the antenna module configured inside the vehicle 500 may include a wireless communication unit. The 4G wireless communication module 450 can transmit and receive 4G signals with a 4G base station through a 4G mobile communication network. At this time, the 4G wireless communication module 450 can transmit more than one 4G transmission signal to the 4G base station. In addition, the 4G wireless communication module 450 can receive more than one 4G reception signal from the 4G base station. In this regard, uplink (UL: Up-Link) multiple-input multiple-output (MIMO: Multi-Input Multi-Output) can be performed by transmitting a plurality of 4G transmission signals to the 4G base station. In addition, downlink (DL: Down-Link) multiple-input multiple-output (MIMO: Multi-Input Multi-Output) can be performed by receiving a plurality of 4G reception signals from the 4G base station.

[0106] The 5G wireless communication module 460 can transmit and receive 5G signals with the 5G base station through the 5G mobile communication network. Here, the 4G base station and the 5G base station can be non-independent (NSA: Non-Stand-Alone) structures. For example, the 4G base station and the 5G base station can be configured as a non-independent (NSA: Non Stand-Alone) structure. Alternatively, the 5G base station can be configured as an independent (SA: Stand-Alone) structure at a location different from the 4G base station. The 5G wireless communication module 460 can transmit and receive 5G signals with the 5G base station through the 5G mobile communication network. At this time, the 5G wireless communication module 460 can transmit more than one 5G transmission signal to the 5G base station. In addition, the 5G wireless communication module 460 can receive more than one 5G reception signal from the 5G base station. At this time, the 5G frequency band can use the same frequency band as the 4G frequency band, and it is called LTE reconfiguration (re-farming). On the other hand, as a 5G frequency band, the Sub6 frequency band, which is a frequency band below 6GHz, can be used. On the contrary, in order to perform broadband high-speed communication, the millimeter wave (mmWave) frequency band can be used as the 5G frequency band. In the case of using the millimeter wave (mmWave) frequency band, electronic devices can perform beam forming to expand the communication coverage with the base station.

[0107] On the other hand, regardless of the 5G frequency band, in order to increase the transmission speed, a larger number of multiple-input multiple-output (MIMO) can be supported in the 5G communication system. In this regard, uplink (UL: Up-Link) MIMO can be performed by transmitting a plurality of 5G transmission signals to a 5G base station. In addition, downlink (DL: Down-Link) MIMO can be performed by receiving a plurality of 5G reception signals from a 5G base station.

[0108] On the other hand, through the 4G wireless communication module 450 and the 5G wireless communication module 460, it is possible to be in a dual connection (DC: Dual Connectivity) state with the 4G base station and the 5G base station. The dual connection with the 4G base station and the 5G base station as described above may be referred to as EN-DC (EUTRAN NR DC; Evolved Universal Terrestrial Radio Access Network New Wireless Dual Connection). On the other hand, if the 4G base station and the 5G base station are co-located structures, the throughput can be improved by heterogeneous carrier aggregation (inter-CA (Carrier Aggregation)). Therefore, if the 4G base station and the 5G base station are in the EN-DC state, the 4G reception signal and the 5G reception signal can be received simultaneously by the 4G wireless communication module 450 and the 5G wireless communication module 460. On the other hand, the 4G wireless communication module 450 and the 5G wireless communication module 460 can be used to perform close range communication between electronic devices (e.g., vehicles). In one embodiment, wireless communication can be performed in a V2V manner between vehicles without via a base station after resources are allocated.

[0109] On the other hand, in order to improve the transmission speed and converge the communication system, at least one of the 4G wireless communication module 450 and the 5G wireless communication module 460 and the Wi-Fi (Wireless High Fidelity) communication module 113 may be used to perform carrier aggregation (CA). In this regard, 4G+WiFi carrier aggregation (CA) may be performed using the 4G wireless communication module 450 and the Wi-Fi communication module 113. Alternatively, 5G+WiFi carrier aggregation (CA) may be performed using the 5G wireless communication module 460 and the Wi-Fi communication module.

[0110] On the other hand, the communication device 400 may realize a vehicle display device together with the user interface device. In this case, the vehicle display device may be named a telematics device or an AVN (Audio Video Navigation) device.

[0111] On the other hand, the broadband transparent antenna structure that can be configured on the glass of a vehicle of the present specification can be implemented by a single dielectric substrate on the same plane as the CPW feeder. In addition, the broadband transparent antenna structure that can be configured on the glass of a vehicle of the present specification can be implemented with a structure in which grounding is formed on both sides of the radiator, thereby forming a broadband structure.

[0112] The following describes the antenna components related to the broadband transparent antenna structure of this specification. Figure 5a to Figure 5cThis shows the configuration in which the antenna assembly of this specification is disposed on the vehicle glass. Figure 5a , the antenna assembly 1000 may include a first dielectric substrate 1010a and a second dielectric substrate 1010b. The first dielectric substrate 1010a may be implemented as a transparent substrate, and thus may be referred to as a transparent substrate 1010a. The second dielectric substrate 1010b may be implemented as an opaque substrate 1010b.

[0113] The glass panel 310 may include a transparent glass region 311 and an opaque region 312. The opaque region 312 of the glass panel 310 may be a frit region formed by a frit layer. The opaque region 312 may be formed to surround the transparent region 311. The opaque region 312 may be formed in an outer region of the transparent region 311. The opaque region 312 may form a boundary region of the glass panel 310.

[0114] The signal pattern formed on the dielectric substrate 1010 can be connected to the telematics control unit (TCU) 300 through a connector component 313 such as a coaxial cable. The telematics control unit (TCU) 300 can be configured inside the vehicle, but is not limited thereto. The telematics control unit (TCU) 300 can be configured in the dashboard inside the vehicle or in the roof area inside the vehicle, but is not limited thereto.

[0115] Figure 5b The antenna assembly 1000 is shown as being disposed in a partial region of the glass panel 310 . Figure 5c The structure in which the antenna assembly 1000 is arranged over the entire area of ​​the glass panel 310 is shown.

[0116] Reference Figure 5b and Figure 5c, the glass panel 310 may include a transparent area 311 and an opaque area 312. The opaque area 312 is a non-visible area whose transparency is below a specified level, and may be referred to as a frit area, or a BP (Black Printing) area, or a BM (Black Matrix) area. The opaque area 312, which is equivalent to the opaque area, may be formed to surround the transparent area 311. The opaque area 312 may be formed in an outer area of ​​the transparent area 311. The opaque area 312 may form a boundary area of ​​the glass panel 310. A second dielectric substrate 1010b or a heat plate 360a, 360b, which is equivalent to a feed substrate, may be arranged in the opaque area 312. The second dielectric substrate 1010b arranged in the opaque area 312 may be referred to as an opaque substrate. As Figure 5c As shown, when the antenna assembly 1000 is disposed on the entire area of ​​the glass panel 310 , the heating plates 360 a and 360 b may be disposed in the opaque area 312 .

[0117] Reference Figure 5b , the antenna assembly 1000 may include a first transparent dielectric substrate 1010a and a second dielectric substrate 1010b. Figure 5b and Figure 5c , the antenna assembly 1000 may include an antenna module 1100 formed of a conductive pattern and a second dielectric substrate 1010b. The antenna module 1100 may be formed by a transparent electrode portion and implemented as a transparent antenna module. The antenna module 1100 may be implemented by more than one antenna element. The antenna module 1100 may include a MIMO antenna and / or other antenna elements for wireless communication. Other antenna elements may include at least one of GNSS / radio / broadcast / WiFi / satellite communication / UWB (ultra-wideband), RKE (Remote Keyless Entry) antennas for vehicle applications.

[0118] Reference Figure 5a to Figure 5c , the antenna assembly 1000 can be connected to the telematics control unit (TCU) 300 through the connector component 313. The connector component 313 can be electrically connected to the TCU300 by forming a connector 313c at the end of the cable. The signal pattern of the second dielectric substrate 1010b formed on the antenna assembly 1000 can be connected to the TCU300 using the connector component 313 such as a coaxial cable. Through the connector component 313, the antenna module 1100 can be electrically connected to the TCU300. The TCU300 can be configured inside the vehicle, but is not limited to this. The TCU300 can be configured on the dashboard inside the vehicle or the roof area inside the vehicle, but is not limited to this.

[0119] On the other hand, when the transparent antenna assembly of the present specification is attached to the inside or surface of the glass panel 310 , the transparent electrode portion including the antenna pattern and the dummy pattern may be disposed in the transparent region 311 . Conversely, the opaque substrate portion may be disposed in the opaque region 312 .

[0120] The antenna assembly formed on the vehicle glass of the present specification can be configured in the transparent area and the opaque area. In this regard, Figure 6a Various embodiments of the frit pattern of this specification are shown. Figure 6b and Figure 6c A transparent antenna pattern according to an embodiment and a structure in which the transparent antenna pattern is arranged on vehicle glass are shown.

[0121] Reference Figure 6a (a), the frit pattern 312a can be formed as a metal pattern in a circular (or polygonal, elliptical) shape with a specified diameter. The frit pattern 312a can be configured in a two-dimensional structure along two axial directions. The frit pattern 312a can be formed in an offset structure in which the center points between the patterns forming adjacent rows are separated by a specified interval.

[0122] Reference Figure 6a In (b), the frit pattern 312b may be formed in a rectangular pattern in one axis direction. The frit pattern 312c may be configured in a one-dimensional structure along one axis direction or in a two-dimensional structure along two axis directions.

[0123] Reference Figure 6a (c), the frit pattern 312c may be formed as a groove pattern in which the metal pattern is removed in a circular (or polygonal, elliptical) shape with a prescribed diameter. The frit pattern 312b may be configured in a two-dimensional structure along two axial directions. The frit pattern 312c may be formed in an offset structure in which the center points between the patterns forming adjacent rows are separated by a prescribed interval.

[0124] Reference Figures 5a to 6c In the opaque region 312, the opaque substrate 1010b and the transparent substrate 1010a may be electrically connected. In this regard, in order to make the transparent antenna pattern invisible, a dummy pattern that is electrically very small and below a specified size may be arranged around the antenna pattern. Thus, the pattern in the transparent electrode cannot be distinguished by the eye without deteriorating the antenna performance. The dummy pattern may be designed to have a light transmittance similar to that of the antenna pattern within a specified range.

[0125] The transparent antenna assembly including the opaque substrate 1010b bonded to the transparent electrode portion can be mounted on the glass panel 310. In this regard, in order to ensure invisibility, the opaque substrate 1010b connected to the RF connector or the coaxial cable is arranged in the opaque region 312 of the vehicle glass. On the other hand, the transparent electrode portion is arranged in the transparent region 311 of the vehicle glass, thereby ensuring the invisibility of the antenna outside the vehicle glass.

[0126] A portion of the transparent electrode portion may be attached to the opaque region 312 as appropriate. The frit pattern of the opaque region 312 may be formed to form a gradient from the opaque region 312 to the transparent region 311. If the transmittance of the frit pattern and the transmittance of the transparent electrode portion are made consistent within a specified range, the transmission efficiency of the transmission line can be improved while improving the invisibility of the antenna. On the other hand, a metal mesh shape similar to the frit pattern can be used to ensure invisibility while reducing sheet resistance. In addition, by increasing the line width of the metal mesh in the area connected to the opaque substrate 1010b, the risk of disconnection of the transparent electrode layer during manufacturing and assembly can be reduced.

[0127] Reference Figure 6a (a) and Figure 6b , the conductive pattern 1110 of the antenna module may be composed of a metal grid of the same line width in the opaque region 312. The conductive pattern 1110 may include a connection pattern 1110c connecting the transparent plate 1010a and the opaque substrate 1010b. In the opaque region 312, a frit pattern of a prescribed shape may be arranged at a prescribed interval and formed on the connection pattern 1110c and both sides of the connection pattern 1110c. The connection pattern 1110c may include a first transmittance portion 1111c formed with a first transmittance and a second transmittance portion 1112c formed with a second transmittance.

[0128] In the frit pattern 312a formed in the opaque region 312, metal grids of a predetermined diameter may be arranged along one axis and another axis. The metal grids of the frit pattern 312a may be arranged at intersections of the metal grids with the second transmittance portions 1112c of the connection pattern 1110c.

[0129] Reference Figure 6a (b) and Figure 6b In the frit pattern 312b formed in the opaque region 312, the groove grid of the prescribed diameter in which the metal region is removed can be arranged along one axis direction and another axis direction. The groove grid of the frit pattern 312b can be arranged between the metal grids in the connection pattern 1110c. Thus, the metal region of the frit pattern 312b without the groove grid can be arranged at the intersection of the metal grids.

[0130] Reference Figure 6aand Figure 6c , the connection pattern 1110c may be formed of a metal mesh having a first line width W1 in a first transmittance portion 1111c adjacent to the transparent region 311. The connection pattern 1110c may be formed of a second line width W2 thicker than the first line width W1 in a second transmittance portion 1112c adjacent to the opaque substrate 1010b. In this regard, the first transparency of the first transmittance portion 1111c may be set to be higher than the second transparency of the second transmittance portion 1112c.

[0131] like Figure 5a to Figure 5c When the transparent antenna assembly is attached to the inside of the vehicle glass, the transparent electrode portion can be arranged in the transparent region 311, and the opaque substrate 1010b can be arranged in the opaque region 312. In this regard, the transparent electrode portion can be arranged in the opaque region 312 according to the situation.

[0132] A portion of the metal pattern of the low-transmittance pattern electrode portion and the high-transmittance pattern electrode portion located in the opaque region 312 can be arranged in the gradient region of the opaque region 312. In the case where the transmission line portion in the antenna pattern and the low-transmittance pattern electrode is composed of a transparent electrode, a gain drop may occur due to a decrease in transmission efficiency caused by an increase in sheet resistance. As a solution to improve this gain drop, the transmittance of the frit pattern 312 where the electrode is located and the transmittance of the transparent electrode can be made consistent within a specified range.

[0133] By increasing the line width of the transparent electrode in the region with low transmittance in the frit patterns 312a, 312b, 312c or adding the same shape as the frit patterns 312a, 312b, 312c, a lower sheet resistance can be achieved. This can solve the problem of reduced transmission efficiency while ensuring invisibility. The transmittance and pattern of the opaque region 312 are not limited to Figure 6a The structure of the transmission line may vary depending on the glass manufacturer or vehicle manufacturer. Therefore, the shape and transparency (line width and spacing) of the transparent electrode of the transmission line may vary differently.

[0134] Figure 7a Showing the front view and cross-sectional view of the transparent antenna assembly of the present specification. Figure 7b It is a diagram showing the mesh structure of the metal mesh radiator area and the virtual metal mesh area according to the embodiment.

[0135] Figure 7a (a) shows a front view of the transparent antenna assembly 1000, Figure 7a (b) is a cross-sectional view of the transparent antenna component 1000, showing the layered structure of the transparent antenna component 1000. Figure 7a, the antenna assembly 1000 may include a first transparent dielectric substrate 1010a and a second dielectric substrate 1010b. A conductive pattern 1110 acting as a radiator may be configured on one side of the first transparent dielectric substrate 1010a. A feed pattern 1120f and ground patterns 1121g and 1122g may be formed on one side of the second dielectric substrate 1010b. The conductive pattern 1110 acting as a radiator may include more than one conductive pattern. The conductive pattern 1110 may include a first pattern 1111 connected to the feed pattern 1120f and a second pattern 1112 connected to the ground pattern 1121g. The conductive pattern 1110 may also include a third pattern 1113 connected to the ground pattern 1122g.

[0136] The conductive pattern 1110 constituting the antenna module may be implemented as a transparent antenna. Figure 7b , the conductive pattern 1110 may be formed of a metal grid pattern 1020a having a line width below a specified line width and forming a metal mesh radiator region. A dummy metal grid pattern 1020b may be formed in the inner region or outer region between the first pattern to the third pattern 1111, 1112, 11113 of the conductive pattern 1100 to maintain transparency below a specified level. The metal grid pattern 1020a and the dummy metal grid pattern 1020b may form a metal mesh layer 1020.

[0137] Figure 7b (a) shows the structure of a typical metal grid pattern 1020a and a dummy metal grid pattern 1020b. Figure 7b (b) shows the structure of an atypical metal grid pattern 1020a and a virtual metal grid pattern 1020b. Figure 7b As shown in (a), the metal mesh layer 1020 can be formed into a transparent antenna structure by a plurality of metal meshes. The metal mesh layer 1020 can be formed in a regular metal mesh shape such as a quadrilateral, a rhombus, or a polygon. The conductive pattern can be formed into a plurality of metal meshes to act as a feeder or a radiator. The metal mesh layer 1020 constitutes a transparent antenna area. As an example, the metal mesh layer 1020 can be implemented with a thickness of about 2 mm, but is not limited thereto.

[0138] The metal mesh layer 1020 may include a metal grid pattern 1020a and a dummy metal grid pattern 1020b. The metal grid pattern 1020a and the dummy metal grid pattern 1020b may form an open area (OA) whose ends are disconnected so as not to be electrically connected. The dummy metal grid pattern 1020b may be formed with slits SL so that the ends of the respective meshes CL1, CL2, ..., CLn are not connected.

[0139] Reference Figure 7b(b), the metal mesh layer 1020 may be formed of a plurality of atypical metal meshes. The metal mesh layer 1020 may include a metal grid pattern 1020a and a dummy metal grid pattern 1020b. The metal grid pattern 1020a and the dummy metal grid pattern 1020b may form an open area OA whose ends are disconnected so as not to be electrically connected. The dummy metal grid pattern 1020b may be formed with slits SL so that the ends of the individual grids CL1, CL2, ..., CLn are not connected.

[0140] On the other hand, the transparent substrate on which the transparent antenna of the present specification is formed can be arranged on the glass of a vehicle. Figure 8a Represents the layered structure of the antenna module and the feeding module. Figure 8b It represents a layered structure in which an antenna module and a feeding structure are combined and an opaque substrate including a combined portion.

[0141] Reference Figure 8a (a), the antenna module 1100 may include a first transparent dielectric substrate 1010a formed on a first layer and a first conductive pattern 1110 formed on a second layer disposed on the first layer. Figure 7b , the first conductive pattern 1110 may be implemented as a metal mesh layer 1020 including a metal lattice pattern 1020a and a dummy metal lattice pattern 1020b. The antenna module 1100 may further include a protective layer 1031 and an adhesive layer 1041a disposed on the second layer.

[0142] Reference Figure 8a (b), the feeding structure 1100f may include a second dielectric substrate 1010b, a second conductive pattern 1120, and a third conductive pattern 1130. The feeding structure 1100f may further include a first protective layer 1033 and a second protective layer 1034, each stacked on the second conductive pattern 1120 and the third conductive pattern 1130. The feeding structure 1100f may further include an adhesive layer 1041b formed on a portion of the second conductive pattern 1120.

[0143] A second conductive pattern 1120 may be disposed on one side of a second dielectric substrate 1010b implemented as an opaque substrate. A third conductive pattern 1130 may be disposed on the other side of the second dielectric substrate 1010b. A first protective layer 1033 may be formed on the upper portion of the third conductive pattern 1130. A second protective layer 1034 may be formed on the lower portion of the second conductive pattern 1120. The first protective layer 1033 and the second protective layer 1034 are configured to have a low dielectric constant (low permittivity) below a specified value, thereby enabling low-loss feeding to the transparent antenna region.

[0144] Reference Figure 8b(a), the antenna module 1100 may be combined with a feeding structure 1100f implemented by a second dielectric substrate 1010b as an opaque substrate. A first conductive pattern 1110 implemented by a metal mesh layer as a transparent electrode layer may be formed on the upper portion of the first transparent dielectric substrate 1010a. A protective layer 1031 may be formed on the upper portion of the first conductive pattern 1110. A protective layer 1031 and a first adhesive layer 1041a may be formed on the upper portion of the first conductive pattern 1110. The first adhesive layer 1041a may be formed adjacent to the protective layer 1031.

[0145] The first adhesive layer 1041a formed on the upper portion of the first conductive pattern 1110 may be bonded to the second adhesive layer 1041b formed on the lower portion of the second conductive layer 1120. The first transparent dielectric substrate 1010a and the second dielectric substrate 1010b may be bonded by bonding between the first adhesive layer 1041a and the second adhesive layer 1041b. Thus, the metal mesh formed on the first transparent dielectric substrate 1010a may be electrically connected to the feeding pattern formed on the second dielectric substrate 1010b.

[0146] The second dielectric substrate 1010b may be formed with a feeding structure 1100f having a second conductive pattern 1120 on one side and a third conductive pattern 1130 on the other side. The feeding structure 1100f may be implemented by a flexible printed circuit board (Flexible Printed Circuit Board), but is not limited thereto. A first protective layer 1033 may be disposed on the upper portion of the third conductive pattern 1130, and a second protective layer 1034 may be disposed on the lower portion of the second conductive pattern 1120. The adhesive layer 1041b at the lower portion of the third conductive pattern 1130 may be bonded to the adhesive layer 1041a of the antenna module 1100. Thus, the feeding structure 1100f may be combined with the antenna module 1100, and the first conductive pattern 1110 and the second conductive pattern 1120 may be electrically connected.

[0147] The thickness of the antenna module 1100 implemented by the first transparent dielectric substrate 1010a can be formed with a first thickness. The thickness of the feed structure 1100f implemented by the second dielectric substrate 1010b can be formed with a second thickness. For example, the thickness of the dielectric substrate 1010a of the antenna module 1100 can be 75um, the thickness of the first conductive pattern 1110 can be 9um, and the thickness of the protective layer 1031 can be 25um. The first thickness of the antenna module 1100 can be 109um. The thickness of the second dielectric substrate 1010b of the feed structure 1100f can be 50um, the thickness of the second conductive pattern 1120 can be 18um, the thickness of the third conductive pattern 1130 can be 18um, and the thickness of the first protective layer 1033 and the second protective layer 1034 can be 28um. Thus, the second thickness of the feed structure 1100f can be 142um. Since the adhesive layer 1041a is formed on the upper portion of the first conductive pattern 1110 and the adhesive layer 1041b is formed on the lower portion of the second conductive pattern 1120, the entire antenna assembly can be formed with a thickness less than the sum of the first thickness and the second thickness. For example, the thickness of the antenna assembly 1000 including the antenna module 1100 and the feeding structure 1100f can be 198 um.

[0148] Reference Figure 8b (b), a conductive pattern 1120 may be formed on one side of the second dielectric substrate 1010b forming the feeding structure 1100f. The conductive pattern 1120 may be formed in a feeding structure having a CPW (co-planar waveguide) structure having a feeding pattern 1120f and ground patterns 1121g and 1122g formed on both sides. Figure 8b (a), the feeding structure 1100f may be combined with the antenna module 1100 using the region where the adhesive layer 1041 is formed.

[0149] The antenna module and the feeding structure constituting the antenna assembly of this specification can be configured on the vehicle glass and combined through a specific combination structure. Figure 9a The figure shows the bonding structure of the transparent antenna disposed in the transparent area and the frit area of ​​the vehicle glass.

[0150] Reference Figure 9a, the first transparent dielectric substrate 1010a can be bonded to the glass panel 310 using an adhesive layer 1041. The conductive pattern of the first transparent dielectric substrate 1010a can be bonded to the conductive pattern 1130 of the second dielectric substrate 1010b by ACF bonding. ACF bonding is a method of bonding the bonding surface for several seconds using an adhesive tape with metal balls added under high temperature / high pressure conditions (e.g., 120-150 degrees, 2-5 MPa), which can be achieved by contacting the electrodes with metal balls. ACF bonding electrically connects the conductive pattern while curing the adhesive layer 1041 due to heat to provide bonding force.

[0151] The first transparent dielectric substrate 1010a formed with a transparent electrode layer can be attached to the second dielectric substrate 1010b in the form of an FPCB by using a local soldering technology. The connection pattern of the FPCB and the transparent antenna electrode can be connected by local soldering based on a coil in a magnetic field induction manner. During such local soldering, the temperature of the soldering portion does not rise, or the FPCB does not deform and can maintain a flat surface. Thus, by local soldering between the conductive patterns of the first transparent dielectric substrate 1010a and the second dielectric substrate 1010b, a highly reliable electrical connection can be achieved.

[0152] The first transparent dielectric substrate 1010a, Figure 7a The metal mesh layer 1020, the protective layer 1033 and the adhesive layer 1041 can form a transparent electrode. The second dielectric substrate 1010b as an opaque substrate can be implemented by an FPCB, but is not limited thereto. It can be configured such that the second dielectric substrate 1010b as an FPCB formed with a feeding pattern is connected to the connector part 313 and the transparent electrode.

[0153] The second dielectric substrate 1010b as an opaque substrate may be attached to a portion of the first transparent dielectric substrate 1010a. The first transparent dielectric substrate 1010a may be formed in the transparent region 311 of the glass panel 310. The second dielectric substrate 1010b may be formed in the opaque region 312 of the glass panel 310. A portion of the first transparent dielectric substrate 1010a may be formed in the opaque region 312, and the first transparent dielectric substrate 1010a may be combined with the second dielectric substrate 1010b in the opaque region 312.

[0154] The first transparent dielectric substrate 1010a and the second dielectric substrate 1010b may be bonded by bonding between the adhesive layers 1041a and 1041b. The position where the second dielectric substrate 1010b is bonded to the adhesive layer 1041 may be set as the first position P1. The position where the connector component 313 is welded to the opaque substrate 1010b may be set as the second position P2.

[0155] On the other hand, the vehicle glass formed with the antenna assembly of the present specification can be combined with the main structure of the vehicle. In this regard, Figure 9b It will form Figure 9a A magnified front view of the area where the transparent antenna glass is bonded to the vehicle's main structure. Fig.9c Indicates observation from different positions Figure 9b A cross-sectional view of the combined structure of vehicle glass and main structure.

[0156] Reference Figure 9b A first transparent dielectric substrate 1010a having a transparent antenna formed thereon may be disposed in a transparent region 311 of the glass panel 310. A second dielectric substrate 1010b may be disposed in an opaque region 312 of the glass panel 310. Since the transmittance of the opaque region 312 is lower than the transmittance of the transparent region 311, the opaque region 312 may also be referred to as a BM (Black Matrix) region. A portion of the first transparent dielectric substrate 1010a having a transparent antenna formed thereon may be extended to the opaque region 312 corresponding to the BM region. The first transparent dielectric substrate 1010a and the opaque region 312 may be formed to overlap along a single axis direction by an overlap length OL.

[0157] Fig.9c (a) indicates along Figure 9b A cross-sectional view of the antenna assembly taken along line AB. Fig.9c (a) indicates along Figure 9b A cross-sectional view of the CD line antenna assembly

[0158] Reference Figure 9b and Fig.9c (a), a first transparent dielectric substrate 1010a having a transparent antenna formed thereon may be disposed in a transparent region 311 of a glass panel 310. A second dielectric substrate 1010b may be disposed in an opaque region 312 of the glass panel 310. A portion of the first transparent dielectric substrate 1010a may be extended to the opaque region 312, so that a feeding pattern formed on the second dielectric substrate 1010b and a metal mesh layer of the transparent antenna can be joined and connected.

[0159] The interior cover 49c may be configured to accommodate a connector component 313 connected to the second dielectric substrate 1010b. The connector component 313 may be disposed in a space between the main body 49b of the metal material and the interior cover 49c, and the connector component 313 may be coupled to an in-vehicle cable. The interior cover 49c may be disposed in an upper region of the main body 49b of the metal material. One end of the interior cover 49c may be bent to be coupled to the main body 49b of the metal material.

[0160] The inner cover 49c may be formed of a metal material or a dielectric material. In the case where the inner cover 49c is formed of a metal material, the inner cover 49c and the main body 49b of the metal material form a metal frame 49. In this regard, the vehicle may include the metal frame 49. The opaque region 312 of the glass panel 310 may be supported by a portion of the metal frame 49. To this end, a portion of the main body 49b of the metal frame 49 may be bent so as to be combined with the opaque region 312 of the glass panel 310.

[0161] When the inner cover 49c is formed of a metal material, at least a portion of the metal region may be removed from the upper region of the second dielectric substrate 1010b in the inner cover 49c. A recess portion 49R where the metal region is removed may be formed in the inner cover 49c. Thus, the metal frame 49 may include the recess portion 49R. The second dielectric substrate 1010b may be disposed in the recess portion 49R of the metal frame 49.

[0162] The recess 49R may also be referred to as a metal cut region. One side of the recess 49R may be separated from one side of the opaque substrate 1010b by a first length L1 equal to or greater than a critical value. The lower boundary side of the recess 49R may be separated from the lower boundary side of the opaque substrate 1010b by a second length L2 equal to or greater than a critical value. As the metal of a portion of the inner cover 49c of the metal material is removed, signal loss and changes in antenna characteristics caused by the surrounding metal structure can be prevented.

[0163] Reference Figure 9b and Fig.9c (b), the area where the connector components and the opaque substrate are not configured can be configured so that the inner cover 49c does not form a recessed portion such as a metal removal area. In this regard, not only can the inner cover 49c protect the internal components of the antenna module 1100, but also can be used to Figure 9b and Fig.9cThe recess 49R of (a) discharges the internal heat to the outside. In addition, the recess 49R of the internal cover 49c can immediately determine whether the connection part needs to be repaired or replaced. On the other hand, since the internal cover 49c does not form a recess in the area where the connector component and the second dielectric substrate are not configured, the internal components of the antenna module 1100 can be protected.

[0164] On the other hand, the antenna assembly 1000 of the present specification can be formed in various forms on the glass panel 310, and the glass panel 310 can be attached to the vehicle frame. Fig.10 2 is a diagram showing a stacked structure of an antenna assembly according to an embodiment and attachment areas to a vehicle glass and a vehicle frame.

[0165] Reference Fig.10 (a), the glass panel 310 may include a transparent area 311 and an opaque area 312. The antenna assembly 1000 may include an antenna module 1100 and a feed structure 1100f. The antenna module 1100 may include a first transparent dielectric substrate 1010a, a transparent electrode layer 1020, and an adhesive layer 1041. The feed structure 1100f implemented by the opaque substrate and the transparent electrode layer 1020 implemented by the transparent substrate may be electrically connected. The feed structure 1100f and the transparent electrode layer 1020 may be directly connected through the first bonding area BR1. The feed structure 1100f and the connector component 313 may be directly connected through the second bonding area BR2. Heat may be applied to the first bonding area BR1 and the second bonding area BR2 for bonding. Thus, the bonding areas BR1 and BR2 may be referred to as heating intervals. In the side end area in the opaque area 312 of the glass panel 310, an attachment area AR equivalent to a sealant area for attaching the glass panel 310 and the vehicle frame may be formed.

[0166] Reference Fig.10(b), the glass panel 310 may include a transparent area 311 and an opaque area 312. The antenna assembly 1000 may include an antenna module 1100 and a feed structure 1100f. The antenna module 1100 may include a protective layer 1031, a transparent electrode layer 1020, a first transparent dielectric substrate 1010a, and an adhesive layer 1041. The feed structure 1100f implemented by the opaque substrate and a portion of the antenna module 1100 implemented by the transparent substrate may overlap. The feed structure 1100f and the transparent electrode layer 1020 of the antenna module 1100 may be coupled feed. The feed structure 1100f and the connector component 313 may be directly connected via a bonding area BR. Heat may be applied to the bonding area BR1 for bonding. Thus, the bonding area BR may be referred to as a heating interval. In the side end area in the opaque area 312 of the glass panel 310, an attachment area AR equivalent to a sealant area for attaching the glass panel 310 and the vehicle frame may be formed.

[0167] Reference Fig.10 (a) and Fig.10 (b), the transparent substrate 1010a may include a (hard) coating layer to protect the transparent electrode layer 1020 from the external environment. On the other hand, the adhesive layer 1041 may be added with a UV blocking component to prevent yellowing due to sunlight.

[0168] Hereinafter, a vehicle having an antenna assembly that can be attached to a vehicle glass according to the present specification will be described with reference to the accompanying drawings. Fig.11 The present invention shows a structure in which a glass panel of a vehicle on which an antenna unit is formed is arranged on a metal frame of a vehicle body. Fig.12a Indicates a slot antenna region that can be configured between the first ground region and the second ground region. On the other hand, Figure 12b FIG. 4 shows an antenna assembly structure in which a slot antenna is arranged between a first transparent antenna and a second transparent antenna according to an embodiment.

[0169] Reference Fig.11 The metal frame 49 may be configured to have an opening 310o formed therein so that the glass panel 310 can be inserted. An adhesive region 49a may be formed in an outer region surrounding the opening 310o of the metal frame 49. The metal frame 49 may have a recess portion 49R formed in a region (e.g., a lower region) of the opening 310o where the metal region is removed. The glass panel 310 may include a transparent region 311 and an opaque region 311. The antenna assembly 1000 may be disposed on the glass panel 310.

[0170] Reference Fig.12a , the antenna assembly 1000 may include a first region 1100a as a radiator region implemented by a transparent antenna and a second region 1100b as a feeding structure (grounding structure). The first region 1100a may be formed by a first transparent dielectric substrate 1010a. A first transparent antenna 1100-1 and a second transparent antenna 1100-2 may be configured on the first transparent dielectric substrate 1010a of the first region 1100a. A second dielectric substrate 1010b configured to feed the first transparent antenna 1100-1 and the second transparent antenna 1100-2 may be configured in the second region 1100b. A first grounding region 1110g and a second grounding region 1120g may be formed on the second dielectric substrate 1010b. A first feeding pattern and a second feeding pattern for feeding the first transparent antenna 1100-1 and the second transparent antenna 1100-2 may be configured in the first grounding region 1110g and the second grounding region 1120g.

[0171] A third area 1100c may be formed between the first grounding area 1110g and the second grounding area 1120g, and the third area 1100c is a slot antenna area for Wi-Fi / BT wireless communication. On the other hand, the slot antenna area for Wi-Fi / BT wireless communication is not limited to the area between the first grounding area 1110g and the second grounding area 1120g. The slot antenna area may be formed in an empty space of the second area 1100b, such as one side or the other side of the first grounding area 1110g. In addition, the slot antenna area may be formed in an empty space of the second area 1100b, such as one side or the other side of the second grounding area 1120g. In this regard, the second area 1100b including the first grounding area 1110g and the second grounding area 1120g may be formed integrally with the slot antenna area using a flexible printed circuit board (Flexible Printed Circuit Board, FPCB).

[0172] Reference Figure 1 , Figures 9a to 9c , Figure 11 to Figure 12b , the vehicle may include a metal frame 49, a glass panel 310, and an antenna assembly 1000. The antenna assembly 1000 may include a first dielectric substrate 1010a as a transparent substrate, a second dielectric substrate 1010b as an opaque substrate, and a groove pattern 1100s.

[0173] The metal frame 49 may be configured to have an opening 310o formed therein so that the glass panel 310 can be inserted. An adhesive region 49a may be formed in an outer region surrounding the opening 310o of the metal frame 49. The metal frame 49 may have a recess portion 49R formed in a region (e.g., a lower region) of the opening 310o where the metal region is removed. The glass panel 310 may include a transparent region 311 and an opaque region 311. The antenna assembly 1000 may be disposed on the glass panel 310.

[0174] The first region 1100a may include an antenna element 1100, which includes a conductive pattern on one side of the first dielectric substrate 1010a and is configured to radiate a wireless signal. The second region 1100b may include ground conductive patterns 1111g, 1112g and a feed pattern 1110f. The first region 1100a may be referred to as a radiator region, and the second region 1100b may be referred to as a ground region (or a feed region).

[0175] The first dielectric substrate 1010a may be disposed on the transparent region 311 of the glass panel 310. A first transparent antenna 1100-1 and a second transparent antenna 11002 may be formed on one side of the first dielectric substrate 1010a. The first transparent antenna 1100-1 may be referred to as a first radiation structure, and the second transparent antenna 11002 may be referred to as a second radiation structure. The second dielectric substrate 1010b may include a first grounding region 1110g and a second grounding region 1120g. The second dielectric substrate 1010b may be disposed in the recess 49R of the metal frame 49 and the opaque region 312 of the glass panel 310.

[0176] The groove pattern 1100s may be disposed between the first grounding region 1110g and the second grounding region 1120g. Fig.13a and Fig.13b Schematic diagram showing electric field distribution in a first frequency band and a second frequency band formed by a slot antenna structure formed with a groove pattern.

[0177] Reference Figures 12a to 13b The groove pattern 1100s may be formed in a pattern region 1100c disposed between the first ground region 1110g and the second ground region 1120g. Since the groove pattern 1100s acts as a radiator for radiating wireless signals, the groove pattern 1100s may also be referred to as a slot antenna. The groove pattern 1100s may include a first groove pattern 1110s and a second groove pattern 1120s.

[0178] The first groove pattern 1110s may be formed vertically along an axial direction on the pattern area 1100c. The first groove pattern 1110s may be configured to radiate a signal of a first working frequency band. The second groove pattern 1120s may be formed horizontally from a portion of the first groove pattern 1110s toward another axial direction perpendicular to the axial direction. The second groove pattern 1120s may be configured to radiate a signal of a second working frequency band higher than the first working frequency band. In this regard, the first working frequency band may be set to a 2.4 GHz frequency band, and the second working frequency band may be set to a 5.5 GHz frequency band.

[0179] The first groove pattern 1110s may form a vertical groove region. The second groove pattern 1120s may form a horizontal groove region in a first direction in another axial direction. The groove pattern 1110s may further include an additional groove pattern extending from one end of the first groove pattern 1110s. The groove pattern 1110s also includes a third groove pattern 1130s fed by the feeding pattern 1130f. The groove pattern 1110s may further include a fourth groove pattern 1140s. The third groove pattern 1130s may be referred to as a feeding groove pattern, and the fourth groove pattern 1140s may be referred to as a matching groove pattern.

[0180] The third groove pattern 1130s may be formed such that one end thereof extends from one end of the first groove pattern 1110s. The third groove pattern 1130s may be horizontally formed in a second direction in another axial direction in a direction opposite to the second groove pattern 1120s. The third groove pattern 1130s may be configured to be coupled and fed through the feeding pattern 1130f to feed a signal of the first working frequency band or the second working frequency band. The fourth groove pattern 1140s may be formed such that one end thereof extends from the other end of the third groove pattern 1130s.

[0181] The fourth groove pattern 1140s may be formed in parallel with the first groove pattern 1110s. The position of the other end of the fourth groove pattern 1140s may be formed at a position lower than the position where the second groove pattern 1120 is formed. Thus, the interference level between the current formed in the fourth groove pattern 1140s and the upper area of ​​the first groove pattern 1110s and the current of the second groove pattern 1120s may be maintained below a critical level.

[0182] Reference Fig.13a In the first working frequency band corresponding to the 2.4 GHz frequency band, the first groove pattern 1110s can act as a main radiator. The first groove pattern 1110s, the third groove pattern 1130s, and the fourth groove pattern 1140s can be configured to radiate the first signal of the first working frequency band. Fig.13a, the first groove pattern 1110 s , the third groove pattern 1130 s , and the fourth groove pattern 1140 s may be configured to radiate the first signal toward the transparent area 311 of the glass panel 310 .

[0183] Reference Fig.13b In the second working frequency band corresponding to the 5.5 GHz frequency band, the second groove pattern 1120s can act as a main radiator. The lower area of ​​the first groove pattern 1110s, the second groove pattern 1120s, the third groove pattern 1130s and the fourth groove pattern 1140s can radiate the second signal of the second working frequency band. Figure 12b as well as Fig.13b , the second groove pattern 1120s, the third groove pattern 1130s, and the fourth groove pattern 1140s may be configured to radiate the second signal toward the transparent area 311 of the glass panel 310. In this regard, the signals of the first working frequency band and the second working frequency band may be Wi-Fi signals of the 2.4 GHz band and the 5.5 GHz band or Bluetooth signals of the 2.4 GHz band, but are not limited thereto.

[0184] On the other hand, the slot antenna of the groove pattern for Wi-Fi / Bluetooth wireless communication of the present specification can be configured in various structures. In this regard, Figures 14a to 14c denoted a structure of a slot antenna formed by a groove pattern according to an embodiment.

[0185] Reference Figures 13a to 14c The formation direction of the open slots constituting the groove pattern may be from the opaque region 312 of the glass panel where the frit layer is formed toward the center of the transparent region 311. In this regard, the radiation pattern of the slot antenna structure implemented by the groove pattern may be formed toward the center side of the glass panel in an axial radiation (end-fire) form.

[0186] Reference Fig.14a , the groove pattern 1100s-1 may further include a fifth groove pattern 1150s parallel to the second groove pattern 1120s. The fifth groove pattern 1150s may be horizontally formed from the second portion of the first groove pattern 1110s toward another axial direction perpendicular to the one axial direction. The fifth groove pattern 1150s may be formed in an area lower than the second groove pattern 1120s. The fifth groove pattern 1150s may be configured to be parallel to the second groove pattern 1120s. The length of the fifth groove pattern 1150s may be formed to be shorter than the length of the second groove pattern 1120s.

[0187] The second groove pattern 1120s can be configured to radiate a second signal of a first sub-band of a second working frequency band. The fifth groove pattern 1150s can be configured to radiate a third signal of a second sub-band of a second working frequency band that is higher than the first sub-band. Thus, the first groove pattern 1110s can radiate a first signal of the first working frequency band. The second groove pattern 1120s can radiate a second signal of a first sub-band of a second working frequency band. The fifth groove pattern 1150s can radiate a third signal of a second sub-band of a second working frequency band. In this regard, the first wavelength λ1 of the first signal, the second wavelength λ2 of the second signal, and the third wavelength λ3 of the third signal can be set to λ1>λ2>λ3.

[0188] Reference Fig.14b , the second groove pattern 1120s of the groove pattern 1100s-2 may be formed of a plurality of sub-groove patterns. The second groove pattern 1120s may include a first sub-groove pattern 1121s and a second sub-groove pattern 1122s.

[0189] The first sub-groove pattern 1121s may be formed such that one end thereof extends from the end of the first groove pattern 1110s. The first sub-groove pattern 1121s may be formed to be perpendicular to the first groove pattern 1110s. The second sub-groove pattern 1122s may be formed to be perpendicular to the first sub-groove pattern 1121s from the end of the first sub-groove pattern 1121s. The second sub-groove pattern 1122s may be configured to be parallel to the first groove pattern 1110s. The groove pattern 1100s-2 may further include a fifth groove pattern 1150s. The fifth groove pattern 1150s may be horizontally formed from a portion of the second sub-groove pattern 1122s toward another axial direction perpendicular to the one axial direction.

[0190] The second sub-groove pattern 1122s of the second groove pattern 1120s can be configured to radiate a second signal of a first sub-band of the second working frequency band. The fifth groove pattern 1150s can be configured to radiate a third signal of a second sub-band of the second working frequency band that is higher than the first sub-band. Thus, the first groove pattern 1110s can radiate a first signal of the first working frequency band. The second groove pattern 1120s can radiate a second signal of a first sub-band of the second working frequency band. The fifth groove pattern 1150s can radiate a third signal of a second sub-band of the second working frequency band. In this regard, the first wavelength λ1 of the first signal, the second wavelength λ2 of the second signal, and the third wavelength λ3 of the third signal can be set to λ1>λ2>λ3.

[0191] Reference Fig.14c , the second groove pattern 1120s of the groove pattern 1100s-3 may be formed of a plurality of sub-groove patterns. The second groove pattern 1120s may include a first sub-groove pattern 1121s and a second sub-groove pattern 1122s.

[0192] The first sub-groove pattern 1121s may be formed such that one end thereof extends from an end of the first groove pattern 1110s. The first sub-groove pattern 1121s may be formed to be perpendicular to the first groove pattern 1110s. The second sub-groove pattern 1122s may be formed to be perpendicular to the first sub-groove pattern 1121s from an end of the first sub-groove pattern 1121s. The second sub-groove pattern 1122s may be configured to be parallel to the first groove pattern 1110s.

[0193] The groove pattern 1100s-3 may further include a fifth groove pattern 1150s and a sixth groove pattern 1160. The fifth groove pattern 1150s may be horizontally formed from the end of the second sub-groove pattern 1122s toward another axis direction perpendicular to the one axis direction. The sixth groove pattern 1160 may be vertically formed from the end of the fifth groove pattern 1150 toward the one axis direction.

[0194] The second sub-groove pattern 1122s of the second groove pattern 1120s can be configured to radiate a second signal of a first sub-band of the second working frequency band. The sixth groove pattern 1160 can be configured to radiate a third signal of a second sub-band of the second working frequency band that is higher than the first sub-band. Thus, the first groove pattern 1110s can radiate a first signal of the first working frequency band. The second groove pattern 1120s can radiate a second signal of a first sub-band of the second working frequency band. The sixth groove pattern 1160s can radiate a third signal of a second sub-band of the second working frequency band. In this regard, the first wavelength λ1 of the first signal, the second wavelength λ2 of the second signal, and the third wavelength λ3 of the third signal can be set to λ1>λ2>λ3.

[0195] Reference Figure 12b In addition to the slot antenna for radiating Wi-Fi / BT signals, the antenna assembly may also include an antenna element 1100 for radiating 4G / 5G signals. The antenna element 1100 may include a plurality of antenna structures and may also be referred to as an antenna module 1100. The antenna element 1100 may include a first radiation structure 1100-1 and a second radiation structure 1100-2.

[0196] The first radiation structure 1100-1 and the second radiation structure 1100-2 formed in the first area 1100a of the antenna assembly 1000 may each be implemented by more than two conductive patterns and configured to operate in multiple frequency bands. The multiple conductive patterns formed in the first area 1100a may include a first conductive pattern 1110 and a third conductive pattern 1130. The multiple conductive patterns may also include a first conductive pattern 1110, a second conductive pattern 1120, and a third conductive pattern 1130.

[0197] The first radiation structure 1100-1 may include a first conductive pattern 1110, a second conductive pattern 1120, and a third conductive pattern 1130. The first conductive pattern 1110 may be composed of a plurality of sub-patterns, i.e., a plurality of conductive portions. The first conductive pattern 1110 may include a first portion 1111 and a second portion 1112. The first portion 1111 may be formed to be perpendicular to the second portion 1112. The second portion 1112 may be electrically connected to the feed pattern 1110f. In this regard, "electrically connected" includes the meaning that each conductive portion is directly connected or coupled at a specified interval.

[0198] The second conductive pattern 1120 may be disposed on a side region or a lower region of the first conductive pattern 1110. The second conductive pattern 1120 may be electrically connected to the first portion 1111g of the ground conductive pattern 1110g. By further configuring the second conductive pattern 1120 in the antenna assembly 1000, resonance may be performed in a frequency band different from the operating frequency bands of the first conductive pattern 1110 and the third conductive pattern 1130.

[0199] The third conductive pattern 1130 may be disposed on the other side of the first conductive pattern 1110. The third conductive pattern 1130 may be electrically connected to the second portion 1112g of the ground conductive pattern 1110g. The size of the second conductive pattern 1120 may be smaller than that of the third conductive pattern 1130. Thus, through the second conductive pattern 1120, the antenna assembly 1000 may act as a radiator at a higher frequency band.

[0200] The second conductive pattern 1120 may be disposed between the first portion 1111 of the first conductive pattern 1110 and the first ground conductive pattern 1110g. The second conductive pattern 1120 may be disposed between the first portion 1111 of the first conductive pattern 1110 and the second portion 1112 of the first conductive pattern 1110. Thus, the second conductive pattern 1120 is disposed in the lower region of the first conductive pattern 1110, and the size of the antenna assembly 1000 can be reduced compared to the case where the second conductive pattern 1120 is disposed in the region on one side of the first conductive pattern 1110. The first portion 1111 of the first conductive pattern 1110 and the third conductive pattern 1130 may be disposed on the opposite side with respect to the second portion 1112 of the first conductive pattern 1110. The first portion 1111 of the first conductive pattern 1110 and the third conductive pattern 1130 may be disposed in the region on one side and the region on the other side with respect to the second portion 1112 of the first conductive pattern 1110.

[0201] The second radiation structure 1100-2 may include a fourth conductive pattern 1140, a fifth conductive pattern 1150, and a third conductive pattern 1160. The fourth conductive pattern 1140 may be composed of a plurality of sub-patterns, i.e., a plurality of conductive portions. The fourth conductive pattern 1140 may include a third portion 1141 and a fourth portion 1142. The third portion 1141 may be formed to be perpendicular to the fourth portion 1142. The fourth portion 1142 may be electrically connected to the feed pattern 1110f. In this regard, "electrically connected" includes the meaning that each conductive portion is directly connected or coupled at a specified interval.

[0202] The fifth conductive pattern 1150 may be disposed on a side region or a lower region of the fourth conductive pattern 1140. The fifth conductive pattern 1150 may be electrically connected to the first portion 1121g of the second ground conductive pattern 1120g. By further configuring the fifth conductive pattern 1150 in the antenna assembly 1000, resonance may be performed in a frequency band different from the operating frequency bands of the fourth conductive pattern 1140 and the sixth conductive pattern 1160.

[0203] The sixth conductive pattern 1160 may be disposed on the other side of the fourth conductive pattern 1140. The sixth conductive pattern 1160 may be electrically connected to the second portion 1122g of the second ground conductive pattern 1120g. The size of the fifth conductive pattern 1150 may be smaller than that of the sixth conductive pattern 1160. Thus, through the fifth conductive pattern 1150, the antenna assembly 1000 may operate as a radiator at a higher frequency band.

[0204] The fifth conductive pattern 1150 may be disposed between the third portion 1141 of the fourth conductive pattern 1140 and the second ground conductive pattern 1120g. The fifth conductive pattern 1150 may be disposed between the third portion 1141 of the fourth conductive pattern 1140 and the fourth portion 1142 of the fourth conductive pattern 1140. Thus, the fifth conductive pattern 1150 is disposed in the lower region of the fourth conductive pattern 1140, and the size of the antenna assembly 1000 can be reduced compared to the case where the fifth conductive pattern 1150 is disposed in the region on one side of the fourth conductive pattern 1140. The third portion 1141 of the fourth conductive pattern 1140 and the sixth conductive pattern 1160 may be disposed on the opposite side with respect to the fourth portion 1142 of the fourth conductive pattern 1140. The third portion 1141 of the fourth conductive pattern 1140 and the sixth conductive pattern 1160 may be disposed in the region on one side and the region on the other side with respect to the fourth portion 1142 of the fourth conductive pattern 1140.

[0205] The first radiation structure 1100-1 and the second radiation structure 1100-2 may be formed as a symmetrical structure with one axis as the center. In this regard, the third conductive pattern 1130 of the first radiation structure 1100-1 may be configured to face the sixth conductive pattern 1160 of the second radiation structure 1100-2. The first conductive pattern 1110 and the fourth conductive pattern 1140 may be separated by a predetermined distance or more through the third conductive pattern 1130 and the sixth conductive pattern 1160 connected to the ground conductive patterns 1110g and 1120g. In addition, the second conductive pattern 1120 and the fifth conductive pattern 1150 may be separated by a predetermined distance or more through the third conductive pattern 1130 and the sixth conductive pattern 1160 connected to the ground conductive patterns 1110g and 1120g.

[0206] By configuring the third conductive pattern 1130 and the sixth conductive pattern 1160 as a facing structure, the isolation between the first conductive pattern 1110 and the fourth conductive pattern 1140 operating in the monopole antenna mode can be improved in the second frequency band. In addition, by configuring the third conductive pattern 1130 and the sixth conductive pattern 1160 as a facing structure, the isolation between the second conductive pattern 1120 and the fifth conductive pattern 1150 can be improved in the third frequency band.

[0207] The first radiation structure 1100-1 and the second radiation structure 1100-2 can be configured to perform multiple input and output (MIMO). By configuring the third conductive pattern 1130 and the sixth conductive pattern 1160 as a facing structure, the isolation between the first radiation structure 1100-1 and the second radiation structure 1100-2 can be improved in the second frequency band and the third frequency band. By the asymmetric structure of the first conductive pattern 1110 and the third conductive pattern 1130, and the asymmetric structure of the fourth conductive pattern 1140 and the fifth conductive pattern 1160, the isolation between the first radiation structure 1100-1 and the second radiation structure 1100-2 can also be improved in the first frequency band.

[0208] Reference Fig.12a and Figure 12b A slot antenna structure implemented by a groove pattern 1110s may be disposed between the first transparent antenna 1100-1 and the second transparent antenna 1100-2. The pattern region 1100c formed with the groove pattern 1110s may be disposed between the first ground region 1110g and the second ground region 1120g. One side end of the pattern region 1100c formed with the groove pattern 1110s and the other side end of the first ground region 1110g may be spaced apart by a first spacing distance L1.

[0209] The other side end of the pattern area 1100c and the one side end of the second ground area 1120g can be separated by a second separation distance L2 that is the same as the first separation distance L1, but is not limited thereto. The first separation distance L1 and the second separation distance L2 can be set to be greater than the minimum spacing Δ. The first separation distance L1 and the second separation distance L2 can be set in a range from the minimum spacing Δ to the effective spacing d. The first separation distance L1 and the second separation distance L2 can be set in a range between [Δ, Δ+d]. The first separation distance L1 and the second separation distance L2 can be formed to be greater than the horizontal distance L between the third conductive pattern 1130 constituting the first transparent antenna 1100-1 and the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2. H Longer.

[0210] One end and the other end of the pattern region 1100c constituting the slot antenna may be spaced apart from the boundary side of the first transparent antenna 1100-1 and the second transparent antenna 1100-2 by a predetermined gap distance or more. In this regard, one end of the pattern region 1100c formed with the groove pattern 1100s may be spaced apart from the boundary side of the third conductive pattern 1130 constituting the first transparent antenna 1100-1 by a first gap distance G1. The other end of the pattern region 1100c may be spaced apart from the boundary side of the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2 by a second gap distance G2 which is the same as the first gap distance G1.

[0211] The first gap distance G1 and the second gap distance G2 can be set to αxλmin of the wavelength λmin corresponding to the lowest frequency of the first working frequency band. Here, α is characterized by being a positive real number. As an example, the first gap distance G1 and the second gap distance G2 can be set to a specified range based on 0.25λmin. Thus, the interference between the current component formed by the third conductive pattern 1130 and the sixth conductive pattern 1160 and the current component of the groove pattern 1100s can be kept below a critical level. As a different example, the first gap distance G1 and the second gap distance G2 can be set to a specified range based on 0.1λmin. In this regard, the frequency band in which the third conductive pattern 1130 and the sixth conductive pattern 1160 act as a radiator and the frequency band in which the groove pattern 1100s acts as a radiator do not overlap. Therefore, even if the first gap distance G1 and the second gap distance G2 are reduced to 0.1λmin, the interference between the current component formed by the sixth conductive pattern 1130, 1160 and the current component of the groove pattern 1100s can be kept below a critical level.

[0212] To this end, each of the plurality of conductive patterns of the antenna assembly 1000 and their combination can act as a radiator in each frequency band. Figures 15a to 15c Yes means Figure 12b A conceptual diagram of the principle of operation of the antenna assembly 1000 in various frequency bands.

[0213] Reference Figure 12b , Fig.14b as well as Fig.15a , the antenna assembly 1000 can operate in a dipole antenna mode at 617 to 960 MHz as a first frequency band. The first frequency band is not limited thereto, and for 4G / 5G LB communication, it can change according to the application. The first conductive pattern 1110 and the third conductive pattern 1130 of the first transparent antenna 1100-1 can operate in a first dipole antenna mode in the first frequency band. The first conductive pattern 1110 and the third conductive pattern 1130 can form an asymmetrical structure. The fourth conductive pattern 1140 and the sixth conductive pattern 1160 of the second transparent antenna 1100-2 can operate in a second dipole antenna mode in the first frequency band. The fourth conductive pattern 1140 and the sixth conductive pattern 1160 can form an asymmetrical structure.

[0214] Reference Figure 12b , Fig.14b as well as Fig.15b , the antenna assembly 1000 can operate in a monopole antenna mode at 1520 to 4500 MHz as a second frequency band. In this regard, the second frequency band is a higher frequency than the first frequency band, and for 4G / 5G MB / HB communication, it can change according to the application. The first conductive pattern 1110 of the first transparent antenna 1100-1 can operate in a first monopole antenna mode in the second frequency band. The fourth conductive pattern 1140 of the second transparent antenna 1100-2 can operate in a second monopole antenna mode in the second frequency band. In this regard, in the second frequency band, a first current I1b can be formed from the first portion 1111 of the first conductive pattern 1110 to the second portion 1112 of the first conductive pattern 1110. In addition, in the second frequency band, a second current I2b can be formed from the second portion 1112 of the first conductive pattern 1110 to the first portion 1111 of the first conductive pattern 1110. Therefore, in the second frequency band, the first conductive pattern 1110 can operate in a monopole antenna mode.

[0215] As mentioned above, the groove pattern 1100s of the slot antenna structure can operate in the first groove mode through the first groove pattern 1110s in the first working frequency band. The second frequency band and at least a part of the first working frequency band can overlap. In this regard, it is necessary to prevent interference between the current I1b and I2b components in the horizontal direction formed by the first conductive pattern 1110 and the first groove current Is1 component in the vertical direction formed by the first groove pattern 1110s. To this end, the third conductive pattern 1130 can be configured between the first conductive pattern 1110 and the first groove pattern 1110s.

[0216] Reference Figure 12b , Fig.14b as well as Fig.15c , the antenna assembly 1000 can act as a radiator in the third frequency band of 4500 to 6000 MHz by additional resonance. In this regard, a third current I3 is formed in the second conductive pattern 1120 of the first transparent antenna 1100-1, so that the second conductive pattern 1120 can act as a radiator in the third frequency band. Similarly, the fifth conductive pattern 1150 of the second transparent antenna 1100-2 can act as a radiator in the third frequency band.

[0217] In this regard, the third frequency band is a higher frequency than the second frequency band, and for 4G / 5G UHB and 5G Sub 6 communications, it can change according to the application. The second conductive pattern 1120 of the first transparent antenna 1100-1 can act as a first radiator in the third frequency band. The fifth conductive pattern 1150 of the second transparent antenna 1100-2 can act as a second radiator in the third frequency band. The third frequency band can be set to be larger than the second frequency band. Thus, in addition to the first frequency band and the second frequency band, the antenna assembly 1000 can also act as a radiator in the third frequency band, thereby covering the entire frequency band for 4G / 5G wireless communications.

[0218] As mentioned above, the groove pattern 1100s of the slot antenna structure can operate in a second groove pattern different from the first groove pattern through the second groove pattern 1120s in the second working frequency band. The third frequency band and at least a portion of the second working frequency band can overlap. In this regard, it is necessary to prevent interference between the current I3 component in the first horizontal direction formed by the second conductive pattern 1120 and the second groove current Is2 component in the second horizontal direction formed by the second groove pattern 1120s. To this end, the third conductive pattern 1130 can be configured between the first conductive pattern 1110 and the second groove pattern 1120s.

[0219] On the other hand, in the slot antenna structure of the antenna assembly of the present specification, the lengths of the first groove pattern 1110s and the second groove pattern 1120s can be realized within a specified range from a specific length. Thus, the area occupied by the groove pattern 1110s having the first groove pattern 1110s, the second groove pattern 1120s, the third groove pattern 1130s, and the fourth groove pattern 1140s can be minimized. In this regard, the vertical length of the first groove pattern 1110s in one axis direction can be formed as a first length within a specified range based on 10 mm. The horizontal width of the first groove pattern 1110s in another axis direction can be formed with a first width. The horizontal length of the second groove pattern 1120s in another axis direction can be formed as a second length within a specified range based on 6.8 mm. The vertical width of the second groove pattern 1120s in one axis direction can be formed with a second width.

[0220] The pattern area 1100c formed with the groove pattern 1100s can be configured on one side of the third dielectric substrate 1010c. A feeding pattern 1130f can be formed on the other side of the third dielectric substrate 1010c, for example, at the lower part. A signal can be applied to the feeding pattern 1130f formed on the other side of the third dielectric substrate 1010c through the third groove pattern 1130s. The signal applied through the third groove pattern 1130s can be radiated through the first groove pattern 1110s or the second groove pattern 1120s according to the working frequency band. The third groove pattern 1130s can be formed with a third length as a horizontal length in another axial direction and a third width. The third width of the third groove pattern 1130s can be set to be narrower than the first width of the first groove pattern 1110s and the second width of the second groove pattern 1120s. Thus, the signal can be easily coupled through the third groove pattern 1130s having the third width. In addition, a signal may be radiated through the first groove pattern 1110s of the first width or the second groove pattern 1120s of the second width which is wider than the third width.

[0221] The current direction formed by the conductive pattern of the antenna assembly of this specification can be perpendicular to the current direction formed in the slot antenna. In this regard, Fig.16a and 16b FIG. 1 is a diagram showing a current direction formed in a conductive pattern of an antenna assembly and a current direction formed in a slot antenna according to an embodiment.

[0222] Reference Fig.16a and Fig.16bIn the antenna assembly 1000, the first conductive pattern 1110 to the sixth conductive pattern 1160 implemented as a transparent antenna may be configured. The first conductive pattern 1110 to the sixth conductive pattern 1160 may be configured on the first transparent dielectric substrate 1010a. The feeding pattern for feeding the transparent antenna may be configured on the second dielectric substrate 1010b. The pattern area 1100c implementing the groove pattern may be configured on the third dielectric substrate 1010c.

[0223] Reference Fig.16a In the antenna assembly 1000, the first conductive pattern 1110 to the sixth conductive pattern 1160 implemented as a transparent antenna can form a first current I1 along the horizontal direction. In the pattern area 1100c, the first groove pattern 1110s can be formed along the vertical direction. In the first groove pattern 1110, a first groove current Is1 can be formed along the vertical direction. The first current I1 of the first conductive pattern 1110 to the sixth conductive pattern 1160 and the first groove current Is1 of the first groove pattern 1110s can be perpendicular. Thus, the isolation characteristics between the transparent antenna and the slot antenna can be kept below the critical level in the 2.4 GHz frequency band as the first working frequency band.

[0224] Reference Fig.13a , Fig.15b as well as Fig.16a , the 2.4 GHz frequency band as the first working frequency band can be equivalent to the second frequency band of the transparent antenna. The first current I1 formed in the transparent antenna can be formed along the horizontal direction in the second frequency band. In the 2.4 GHz frequency band as the first working frequency band, the first groove current Is1 formed in the slot antenna can be formed along the vertical direction.

[0225] Reference Fig.16b In the antenna assembly 1000, the second current I2 can be formed in the vertical direction in the first conductive pattern 1110 to the sixth conductive pattern 1160 implemented as a transparent antenna. In the pattern area 1100c, the second groove pattern 1120s can be formed in the vertical direction. In the first groove pattern 1110, a second groove current Is2 can be formed in the vertical direction. The first current I1 of the first conductive pattern 1110 to the sixth conductive pattern 1160 and the second groove current Is2 of the second groove pattern 1120s can be perpendicular. Thus, in the 5.5 GHz frequency band as the second working frequency band, the isolation characteristics between the transparent antenna and the slot antenna can be kept below the critical level.

[0226] Reference Fig.13b , Fig.15c as well as Fig.16b, the 5.5 GHz frequency band as the second working frequency band is equivalent to the third frequency band of the transparent antenna. The second current I2 formed in the transparent antenna can be formed along the vertical direction in the third frequency band. In the 5.5 GHz frequency band as the second working frequency band, the second groove current Is2 formed in the slot antenna can be formed along the horizontal direction.

[0227] Reference Fig.16a and Fig.16b , the structure of the first transparent antenna 1100-1, the second transparent antenna 1100-2 and the structure of the slot antenna 1100s can be configured in a limited space of the antenna assembly 1000. The structure of the first transparent antenna 1100-1 and the second transparent antenna 1100-2 can be formed in a dipole antenna structure. The structure of the first transparent antenna 1100-1 and the second transparent antenna 1100-2 can be formed in a 4G / 5G MIMO transparent antenna structure. To this end, the structure of the first transparent antenna 1100-1 and the second transparent antenna 1100-2 can be formed in a transparent electrode and FPCB structure. The structure of the slot antenna 1100s can act as a radiator in the WIFI / BT frequency band by utilizing the groove pattern of the additional FPCB portion.

[0228] The structure of the slot antenna 1100s can not only act as a radiator in the WIFI / BT frequency band, but also maintain the isolation characteristics below the critical level with the 4G / 5G transparent antenna. For the isolation characteristics, the formation direction of the groove pattern can be determined by considering the radiation pattern and current distribution (electric field distribution) of the first transparent antenna 1100-1 and the second transparent antenna 1100-2. To this end, the direction of the first groove current Is1 and the second groove current Is2 of the slot antenna 1100s can be determined to be perpendicular to the direction of the first current I1 and the second current I2 formed in the first transparent antenna 1100-1 and the second transparent antenna 1100-2. Thus, the slot antenna 1100s can be configured to include a first groove pattern 1110s and a second groove pattern 1120s.

[0229] On the other hand, the antenna assembly of the present specification may include a plurality of antenna elements. Figure 12b The first transparent antenna 1100-1 may be referred to as a first antenna, and the second transparent antenna 1100-2 may be referred to as a second antenna. The slot antenna implemented with the groove pattern 1100s may be referred to as a third antenna.

[0230] Fig.17a The reflection coefficient characteristics of the slot antenna and the isolation characteristics between the slot antenna and the first transparent antenna and the second transparent antenna are shown. Figure 12b and Fig.17aThe reflection coefficient of the slot antenna implemented with the groove pattern 1100s has a value of about -8dB or less in the 2.4GHz to 2.5GHz and 5.15GHz to 5.85GHz frequency bands. As mentioned above, the first transparent antenna 1100-1 can be referred to as the first antenna, and the second transparent antenna 1100-2 can be referred to as the second antenna. The slot antenna implemented with the groove pattern 1100s can be referred to as the third antenna.

[0231] In this regard, dB(S(3,2)) represents the isolation characteristic between the second transparent antenna 1100-2 and the slot antenna 1100s. dB(S(2,1)) represents the isolation characteristic between the first transparent antenna 1100-1 and the second transparent antenna 1100-2. dB(S(3,1)) represents the isolation characteristic between the first transparent antenna 1100-1 and the slot antenna 1100s. The isolation between the first transparent antenna 1100-1, the second transparent antenna 1100-2, and the slot antenna 1100s is greater than 20 dB in the entire frequency band, so that the mutual interference can be kept below the specified level.

[0232] Fig.17b The antenna efficiencies of the first transparent antenna and the second transparent antenna at each frequency are shown depending on whether or not the slot antenna is provided. Fig.17c This shows the antenna efficiency of the slot antenna operating in the Wi-Fi / BT band at each frequency.

[0233] Reference Figure 12b and Fig.17b (a), regardless of whether the slot antenna 1100s is configured, the antenna efficiency of the first transparent antenna 1100-1 has a similar value in the first frequency band to the third frequency band. In the frequency band below 6 GHz, even if the slot antenna 1100s is configured, the antenna efficiency of the first transparent antenna 1100-1 can be maintained below 0.1 dB. Compared with the case where the slot antenna 1100s is not configured, the antenna efficiency of the first transparent antenna 1100-1 can be further increased in the frequency band above 4 GHz when the slot antenna 1100s is configured.

[0234] Reference Figure 12b and Fig.17b (b), regardless of whether the slot antenna 1100s is configured, the antenna efficiency of the second transparent antenna 1100-2 has a similar value in the first frequency band to the third frequency band. In the frequency band below 6 GHz, even if the slot antenna 1100s is configured, the antenna efficiency of the second transparent antenna 1100-2 can be maintained below 0.1 dB. Compared with the case where the slot antenna 1100s is not configured, the antenna efficiency of the second transparent antenna 1100-2 can be further increased in the frequency band above 5 GHz when the slot antenna 1100s is configured.

[0235] Reference Figure 12b and Fig.17c The antenna efficiency of the slot antenna 1100s can ensure an antenna efficiency of more than -2dBi in the WIFI / BT frequency band (2.4~2.5GHz, 5.15~5.85GHz).

[0236] Hereinafter, a vehicle having an antenna assembly that can be attached to a vehicle glass according to another aspect of the present specification will be described with reference to the accompanying drawings. Fig.18a and Fig.18b : shows the structure of an antenna assembly equipped with a slot antenna according to an embodiment. On the other hand, Fig.18c Indicates 18a and Fig.18b The stacked structure of the antenna assembly.

[0237] Reference Fig.18a , indicating a structure in which the slot antenna 1100s is disposed in the lower region of the first transparent antenna 1100-1. In this regard, the slot antenna 1100s is not limited to being disposed in the lower region of the first transparent antenna 1100-1, but may also be disposed in the lower region of the second transparent antenna 1100-2.

[0238] Fig.18b The first slot antenna 1100s-1 is disposed in the lower region of the first transparent antenna 1100-1, and the second slot antenna 1100s-2 is disposed between the first transparent antenna 1100-1 and the second transparent antenna 1100-2. The first slot antenna 1100s-1 may be separated from the second dielectric substrate 1010b to which the first transparent antenna 1100-1 is fed by a third separation distance L3. The second slot antenna 1100s-2 may be separated from the second dielectric substrate 1010b to which the first transparent antenna 1100-1 and the second transparent antenna 1100-2 are fed by a first separation distance L1 and a second separation distance L2. According to the separation distance between the first radiation structure 1100-1 and the second radiation structure 1100-2, the first separation distance L1 and the second separation distance L2 may be longer than the third separation distance L3. The first slot antenna 1100s-1 may be referred to as a first groove pattern region, and the second slot antenna 1100-2 may be referred to as a second groove pattern region.

[0239] Reference Figure 1 , Figures 9a to 9c , Figure 11 to Figure 12b , Fig.18a as well as Fig.18b, the vehicle may include a metal frame 49, a glass panel 310, and an antenna assembly 1000. The antenna assembly 1000 may include a first dielectric substrate 1010a as a transparent substrate, a second dielectric substrate 1010b as an opaque substrate, and a third dielectric substrate 1010c formed with a groove pattern 1100s.

[0240] The metal frame 49 may be configured to have an opening formed therein. The metal frame 49 may be formed with a recess portion 49R in the form of an opening in which a metal region is removed. The glass panel 310 may include a transparent region 311 and an opaque region 311. The antenna assembly 1000 may be disposed on the glass panel 310.

[0241] The first region 1100a may include an antenna element 1100, which includes a conductive pattern on one side of the first dielectric substrate 1010a and is configured to radiate a wireless signal. The second region 1100b may include ground conductive patterns 1111g, 1112g and a feed pattern 1110f. The first region 1100a may be referred to as a radiator region, and the second region 1100b may be referred to as a ground region (or a feed region).

[0242] The first dielectric substrate 1010a may be disposed on the transparent region 311 of the glass panel 310. A first transparent antenna 1100-1 and a second transparent antenna 1100-2 may be formed on one side of the first dielectric substrate 1010a. The first transparent antenna 1100-1 may be referred to as a first radiation structure, and the second transparent antenna 1100-2 may be referred to as a second radiation structure. The second dielectric substrate 1010b may include a first grounding region 1110g and a second grounding region 1120g. The second dielectric substrate 1010b may be disposed in the recess 49R of the metal frame 49 and the opaque region 312 of the glass panel 310. The third dielectric substrate 1010c may be disposed apart from one side of at least one of the first grounding region 1110g and the second grounding region 1120g. The third dielectric substrate 1010c may include a groove pattern 1100s formed in a pattern region 1100c on one side.

[0243] The groove pattern 1100s may include a first groove pattern 1110s and a second groove pattern 1120s. The first groove pattern 1110s may be formed vertically along an axial direction on the pattern area 1100c. The first groove pattern 1110s may be configured to radiate a signal of a first operating frequency band. The second groove pattern 1120s may be formed horizontally from a portion of the first groove pattern 1110s toward another axial direction perpendicular to the axial direction. The second groove pattern 1120s may be configured to radiate a signal of a second operating frequency band higher than the first operating frequency band. In this regard, the first operating frequency band may be set to a 2.4 GHz frequency band, and the second operating frequency band may be set to a 5.5 GHz frequency band.

[0244] The first groove pattern 1110s may form a vertical groove region. The second groove pattern 1120s may form a horizontal groove region in a first direction of another axial direction. The groove pattern 1110s may further include an additional groove pattern extending from one end of the first groove pattern 1110s. The groove pattern 1110s may further include a third groove pattern 1130s fed by the feeding pattern 1130f. The groove pattern 1110s may further include a fourth groove pattern 1140s. The third groove pattern 1130s may be referred to as a feeding groove pattern, and the fourth groove pattern 1140s may be referred to as a matching groove pattern.

[0245] The third groove pattern 1130s may be formed such that one end thereof extends from one end of the first groove pattern 1110s. The third groove pattern 1130s may be horizontally formed in a second direction in another axial direction in a direction opposite to the second groove pattern 1120s. The third groove pattern 1130s may be configured to be coupled and fed through the feeding pattern 1130f to feed a signal of the first working frequency band or the second working frequency band. The fourth groove pattern 1140s may be formed such that one end thereof extends from the other end of the third groove pattern 1130s. The fourth groove pattern 1140s may be formed to be parallel to the first groove pattern 1110s.

[0246] Reference Fig.13a In the first working frequency band corresponding to the 2.4 GHz frequency band, the first groove pattern 1110s can act as a main radiator. The first groove pattern 1110s, the third groove pattern 1130s, and the fourth groove pattern 1140s can be configured to radiate the first signal of the first working frequency band. Fig.13a , the first groove pattern 1110 s , the third groove pattern 1130 s , and the fourth groove pattern 1140 s may be configured to radiate the first signal toward the transparent area 311 of the glass panel 310 .

[0247] Reference Fig.13b In the second working frequency band corresponding to the 5.5 GHz frequency band, the second groove pattern 1120s can act as a main radiator. The lower area of ​​the first groove pattern 1110s, the second groove pattern 1120s, the third groove pattern 1130s and the fourth groove pattern 1140s can radiate the second signal of the second working frequency band. Figure 12b as well as Fig.13b , the second groove pattern 1120s, the third groove pattern 1130s, and the fourth groove pattern 1140s may be configured to radiate the second signal toward the transparent area 311 of the glass panel 310. In this regard, the signals of the first working frequency band and the second working frequency band may be Wi-Fi signals of the 2.4 GHz band and the 5.5 GHz band or Bluetooth signals of the 2.4 GHz band, but are not limited thereto.

[0248] The first transparent antenna 1100-1 may include a first conductive pattern 1110, a second conductive pattern 1120, and a third conductive pattern 1130. The first conductive pattern 1110 may include a first portion 1111 and a second portion 1112. The first portion 1111 may be perpendicularly connected to the second portion 1112. The second portion 1112 may be electrically connected to the first feeding pattern 1111. The second conductive pattern 1120 may be electrically connected to a first portion 1111g of a first ground conductive pattern of a first ground region 1110g. The third conductive pattern 1130 may be electrically connected to a second portion 1112g of a first ground conductive pattern of a first ground region 1110g.

[0249] The size of the second conductive pattern 1120 may be smaller than that of the third conductive pattern 1130. The second conductive pattern 1120 may be disposed between the first portion 1111 of the first conductive pattern 1110 and the first ground conductive pattern. The first portion 1111g of the first conductive pattern 1110 and the third conductive pattern 1130 may be disposed on opposite sides with respect to the second portion 1112 of the first conductive pattern 1110.

[0250] The second transparent antenna 1100-2 may include a fourth conductive pattern 1140, a fifth conductive pattern 1150, and a sixth conductive pattern 1160. The fourth conductive pattern 1140 may include a third portion 1141 and a fourth portion 1142. The third portion 1141 may be vertically connected to the fourth portion 1142. The fourth portion 1142 may be electrically connected to the second feeding pattern 1120f. The fifth conductive pattern 1150 may be electrically connected to the first portion 1121g of the second ground conductive pattern of the second ground region 1120g. The sixth conductive pattern 1160 may be electrically connected to the second portion 1122g of the second ground conductive pattern of the second ground region 1120g.

[0251] The size of the fifth conductive pattern 1150 may be smaller than that of the sixth conductive pattern 1150. The fifth conductive pattern 1150 may be disposed between the first portion 1111 of the fourth conductive pattern 1140 and the second ground conductive pattern. The first portion 1141g of the fourth conductive pattern 1140 and the sixth conductive pattern 1160 may be disposed on opposite sides with respect to the fourth portion 1142 of the fourth conductive pattern 1140. The third conductive pattern 1130 may be disposed to face the sixth conductive pattern 1160.

[0252] As described above, a first groove pattern area 1100s-1 implemented with a groove pattern 1110s may be disposed at the lower portion of the first transparent antenna 1100-1 or the second transparent antenna 1100-2. In addition, a slot antenna structure implemented with a second groove pattern area 1100s-2 may be disposed between the first transparent antenna 1100-1 and the second transparent antenna 1100-2. A groove pattern 1110s may be disposed at the lower portion of the first transparent antenna 1100-1. One side end portion of the pattern area 1100c formed with the groove pattern 1110s and one side end portion of the first grounding area 1100g may be spaced apart by a first spacing distance L1.

[0253] The other side end of the pattern area 1100c where the second groove pattern area 1100s-2 is formed and the one side end of the second grounding area 1120g can be separated by a second separation distance L2 which is the same as the first separation distance L1, but is not limited thereto. The first separation distance L1 and the second separation distance L2 can be greater than the horizontal distance L between the third conductive pattern 1130 constituting the first transparent antenna 1100-1 and the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2. H Longer.

[0254] One side end and the other side end of the pattern region 1100c constituting the slot antenna may be separated from the boundary side of the first transparent antenna 1100-1 and the second transparent antenna 1100-2 by a predetermined gap distance or more. In this regard, a first gap distance G1 may be formed from one side end of the pattern region 1100c formed with the groove pattern 1100s to the lower boundary of the first conductive pattern 1110 constituting the first transparent antenna 1100-1. A second gap distance G2 which is the same as the first gap distance G1 may be formed from the other side end of the pattern region 1100c formed with the second groove pattern region 1100s-2 to the boundary side of the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2.

[0255] Reference Fig.18c , Fig.18a and Fig.18b The antenna assembly can be configured on the glass panel 310 of the vehicle. In this regard, Fig.18cThe stacked structure of Fig.18a The antenna assembly is described as a reference for convenience of description, but is not limited thereto and can also be applied to Fig.18b antenna assembly.

[0256] The glass panel 310 may include a transparent region 311 and an opaque region 312. A first region 1100a corresponding to the antenna region of the antenna assembly 1000 may be formed in the transparent region 311. A second region 1100b corresponding to the feeding region of the antenna assembly 1000 may be formed in the opaque region 312. A portion of the first region 1100a connected to the feeding pattern 1110f of the second region 1100b may be disposed in the opaque region 312.

[0257] The antenna assembly 1000 may be formed with a conductive pattern 1100 implemented by a metal mesh layer formed on a transparent dielectric substrate 1010a. A transparent antenna element may be implemented by the conductive pattern 1100 formed on the metal mesh layer. A virtual metal grid separated from the transparent antenna element may be configured on the metal mesh layer 1020. A first protective layer 1031 may be formed on the upper portion of the metal mesh layer 1020. An adhesive layer 1040 may be formed on the lower portion of the transparent dielectric substrate 1010a.

[0258] A conductive pattern including a feed pattern 1110f and a ground pattern may be formed on a second dielectric substrate 1010b. The second dielectric substrate 1010b may be implemented by an FPCB, but is not limited thereto. A second protective layer 1032 may be formed on the upper portion of the feed pattern 1110f. The second dielectric substrate 1010b, the conductive pattern including the feed pattern 1110f and the ground pattern, and the second protective layer 1032 may form a feed structure 1100f. The feed pattern 1110f may be connected to the conductive pattern 1100 formed in the metal mesh layer in a third region 1100c corresponding to a bonding region. In the third region 1100c, the first connection pattern 1110c in the conductive pattern 1100 may be connected to the second connection pattern 1120c as the end of the feed pattern 1110f.

[0259] The above is a description of the antenna assembly of the transparent antenna structure in one aspect of the present specification. The following is a description of the antenna assembly of the transparent antenna structure in another aspect of the present specification. Fig.19a The structure of an antenna assembly of a transparent antenna structure represents another aspect of the present disclosure. Fig.19b express Fig.19a The second dielectric substrate of the antenna assembly is configured in the opaque area of ​​the glass panel. Fig.19c The process flow of combining the antenna assembly of the embodiment with the glass panel is shown.

[0260] Reference Figure 1 , Figures 9a to 9c , Figure 11 to Figure 12b , Figures 18a to 19c , the vehicle may include a glass panel 310 and an antenna assembly 1000. The glass panel 310 may include a transparent region 311 and an opaque region 312. The antenna assembly 1000 may be configured on the glass panel 310. The antenna assembly 1000 may include a first transparent dielectric substrate 1010a, an antenna element 1100, connection patterns 1110c, 1120c, a second dielectric substrate 1010b, a ground conductive pattern 1110g, and a feeding pattern 1110f.

[0261] The antenna assembly 1000 implemented as a transparent antenna can be designed as a CPW antenna structure in a single-layer form. Fig.11 a, the antenna assembly 1000 may include first to third conductive patterns 1110 to 1130. Fig.11 b. The antenna assembly 1000 may include first to fourth conductive patterns 1110 to 1140 .

[0262] The first transparent dielectric substrate 1010a may include a first region 1100a and a second region 1100b. The first region 1100a may include an antenna element 1100 on one side of the first transparent dielectric substrate 1010a. Since the antenna element 1100 includes a plurality of conductive patterns, it may be referred to as an antenna module 1100. The first region 1100a on one side of the first transparent dielectric substrate 1010a may be configured in the transparent region 311 of the glass panel 310.

[0263] The connection patterns 1110c and 1120c may be connected to the antenna element 1100. The connection patterns 1110c and 1120c may be disposed in the second region 1110b on one side of the first transparent dielectric substrate 1010a. The second region 1100b on one side of the first transparent dielectric substrate 1010b may be disposed in the opaque region 312 of the glass panel 310.

[0264] The second dielectric substrate 1010b may be disposed in the opaque region 312 of the glass panel 310. The ground conductive pattern 1110g and the feeding pattern 1110f may be disposed in the third region 1100c on one side of the second dielectric substrate 1010b.

[0265] The first region 1100a may include an antenna element 1100, which includes a conductive pattern on one side of the first dielectric substrate 1010a and is configured to radiate a wireless signal. The second region 1100b may include ground conductive patterns 1111g, 1112g and a feed pattern 1110f. The first region 1100a may be referred to as a radiator region, and the second region 1100b may be referred to as a ground region (or a feed region).

[0266] The first dielectric substrate 1010a may be disposed on the transparent region 311 of the glass panel 310. A first transparent antenna 1100-1 and a second transparent antenna 1100-2 may be formed on one side of the first dielectric substrate 1010a. The first transparent antenna 1100-1 may be referred to as a first radiation structure, and the second transparent antenna 1100-2 may be referred to as a second radiation structure. The second dielectric substrate 1010b may include a first grounding region 1110g and a second grounding region 1120g. The second dielectric substrate 1010b may be disposed in the recess 49R of the metal frame 49 and the opaque region 312 of the glass panel 310.

[0267] A first groove pattern region 1100s-1 implemented with a groove pattern 1110s may be disposed at the lower portion of the first transparent antenna 1100-1 or the second transparent antenna 1100-2. In addition, a slot antenna structure implemented with a second groove pattern region 1100s-2 may be disposed between the first transparent antenna 1100-1 and the second transparent antenna 1100-2. A groove pattern 1110s may be disposed at the lower portion of the first transparent antenna 1100-1. One side end portion of the pattern region 1100c formed with the groove pattern 1110s and one side end portion of the first ground region 1100g may be spaced apart by a first spacing distance L1.

[0268] The other side end of the pattern area 1100c where the second groove pattern area 1100s-2 is formed and the one side end of the second grounding area 1120g can be separated by a second separation distance L2 which is the same as the first separation distance L1, but is not limited thereto. The first separation distance L1 and the second separation distance L2 can be greater than the horizontal distance L between the third conductive pattern 1130 constituting the first transparent antenna 1100-1 and the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2. H Longer.

[0269] One side end and the other side end of the pattern region 1100c constituting the slot antenna may be separated from the boundary side of the first transparent antenna 1100-1 and the second transparent antenna 1100-2 by a predetermined gap distance or more. In this regard, a first gap distance G1 may be formed from one side end of the pattern region 1100c formed with the groove pattern 1100s to the lower boundary of the first conductive pattern 1110 constituting the first transparent antenna 1100-1. A second gap distance G2 which is the same as the first gap distance G1 may be formed from the other side end of the pattern region 1100c formed with the second groove pattern region 1100s-2 to the boundary side of the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2.

[0270] The groove pattern 1100s may include a first groove pattern 1110s and a second groove pattern 1120s. The first groove pattern 1110s may be formed vertically along an axial direction on the pattern area 1100c. The first groove pattern 1110s may be configured to radiate a signal of a first operating frequency band. The second groove pattern 1120s may be formed horizontally from a portion of the first groove pattern 1110s toward another axial direction perpendicular to the axial direction. The second groove pattern 1120s may be configured to radiate a signal of a second operating frequency band higher than the first operating frequency band. In this regard, the first operating frequency band may be set to a 2.4 GHz frequency band, and the second operating frequency band may be set to a 5.5 GHz frequency band.

[0271] The first groove pattern area 1110s-1 and the second groove pattern area 1120s-2 may respectively include a plurality of groove patterns, such as the first groove pattern 1110s to the fourth groove pattern 1140s. The first groove pattern 1110s may form a vertical groove region. The second groove pattern 1120s may form a horizontal groove region in a first direction in another axial direction. The groove pattern 1110s may also include an additional groove pattern extending from one end of the first groove pattern 1110s. The groove pattern 1110s may also include a third groove pattern 1130s fed by the feeding pattern 1130f. The groove pattern 1110s may also include a fourth groove pattern 1140s. The third groove pattern 1130s may be referred to as a feeding groove pattern, and the fourth groove pattern 1140s may be referred to as a matching groove pattern.

[0272] The third groove pattern 1130s may be formed such that one end thereof extends from one end of the first groove pattern 1110s. The third groove pattern 1130s may be horizontally formed in a second direction in another axial direction in a direction opposite to the second groove pattern 1120s. The third groove pattern 1130s may be configured to be coupled and fed through the feeding pattern 1130f to feed a signal of the first working frequency band or the second working frequency band. The fourth groove pattern 1140s may be formed such that one end thereof extends from the other end of the third groove pattern 1130s. The fourth groove pattern 1140s may be formed to be parallel to the first groove pattern 1110s.

[0273] On the other hand, the antenna assembly of the present specification may include a first transparent dielectric substrate and a second dielectric substrate formed with a transparent electrode layer. As mentioned above, Fig.19c The process flow of combining the antenna assembly of the embodiment with the glass panel is shown.

[0274] Reference Fig.19c (a), a first transparent dielectric substrate 1000a having a transparent electrode layer can be manufactured. In addition, a second dielectric substrate 1010b having a feeding pattern 1120f and grounding patterns 1121g and 1122g formed on both sides of the feeding pattern 1120f can be manufactured. The second dielectric substrate 1010b can be implemented by an FPCB, but is not limited thereto. Adhesion areas corresponding to the adhesive layer 1041 can be formed on the first transparent dielectric substrate 1000a and the second dielectric substrate 1010b, respectively.

[0275] Reference Fig.19c (b), a glass panel 310 having a transparent area 311 and an opaque area 312 can be manufactured. In addition, the antenna assembly 1000 can be manufactured by combining at least one second dielectric substrate 1010b in the lower area of ​​the first transparent dielectric substrate 1000a. The first transparent dielectric substrate 1000a and the second dielectric substrate 1010b can be combined by ACF bonding or low-temperature welding to realize a transparent antenna assembly. Thus, the conductive pattern formed on the first transparent dielectric substrate 1000a can be electrically connected to the conductive pattern formed on the second dielectric substrate 1010b. When a plurality of antenna elements are implemented on the glass panel 310, the feeding structure 1100f made of the second dielectric substrate 1010b can also be implemented as a plurality of feeding structures.

[0276] Reference Fig.19c(c), the transparent antenna assembly 1000 may be attached to the glass panel 310. In this regard, the first transparent dielectric substrate 1000a formed with a transparent electrode layer may be disposed in the transparent region 311 of the glass panel 310. On the other hand, the second dielectric substrate 1010b as an opaque substrate may be disposed in the opaque region 312 of the glass panel 310.

[0277] Reference Fig.19c (d), the first transparent dielectric substrate 1000a and the second dielectric substrate 1010b can be joined at the first position P1. The connector component 313 such as the Fakra cable can be joined to the second dielectric substrate 1010b at the second position P2. The transparent antenna assembly 1000 can be combined with the telematics control unit (TCU) 300 using the connector component 313. To this end, the second conductive pattern formed on the second dielectric substrate 1010b can be electrically connected to the connector at one end of the connector component 313. The connector at the other end of the connector component 313 can be electrically connected to the telematics control unit (TCU) 300.

[0278] Next, the antenna assembly of the transparent antenna structure according to another aspect of the present specification is described. Fig.20a A structure of an antenna assembly showing a transparent antenna structure according to still another aspect of the present specification. Fig.20b express Fig.20a FIG. 1 is a process flow chart of configuring the feeding structure of the antenna assembly in the opaque area of ​​the glass panel. In this regard, the feeding structure 1100f may be configured in the area where the frit pattern 312f is removed.

[0279] Reference Figure 1 , Figures 9a to 9c , Figure 11 to Figure 12b , Figures 18a to 18c , Fig.20a and Fig.20b , the vehicle may include a glass panel 310 and an antenna assembly 1000. The glass panel 310 may include a transparent region 311 and an opaque region 312. One side of the opaque region 312 may include a ground conductive pattern 1110g and a feed pattern 1110f. In an area where the second dielectric substrate 1010b having the ground conductive pattern 1110g and the feed pattern 1110f is formed, the frit pattern 312f may be removed.

[0280] The antenna assembly 1000 may be disposed on the glass panel 310. The antenna assembly 1000 may include a first transparent dielectric substrate 1010a, an antenna element 1100, connection patterns 1110c, 1120c, a second dielectric substrate 1010b, a ground conductive pattern 1110g, and a feeding pattern 1110f.

[0281] The first transparent dielectric substrate 1010a may include a first region 1100a and a second region 1100b. The first region 1100a may include an antenna element 1100 on one side of the first transparent dielectric substrate 1010a. Since the antenna element 1100 includes a plurality of conductive patterns, it may be referred to as an antenna module 1100. The first region 1100a on one side of the first transparent dielectric substrate 1010a may be configured in the transparent region 311 of the glass panel 310.

[0282] The connection patterns 1110c and 1120c may be connected to the antenna element 1100. The connection patterns 1110c and 1120c may be disposed in the second region 1110b on one side of the first transparent dielectric substrate 1010a. The second region 1100b on one side of the first transparent dielectric substrate 1010b may be disposed in the opaque region 312 of the glass panel 310.

[0283] The second dielectric substrate 1010b may be disposed in the opaque region 312 of the glass panel 310. The ground conductive pattern 1110g and the feeding pattern 1110f may be disposed in the third region 1100c on one side of the second dielectric substrate 1010b.

[0284] The first region 1100a may include an antenna element 1100, which includes a conductive pattern on one side of the first dielectric substrate 1010a and is configured to radiate a wireless signal. The second region 1100b may include ground conductive patterns 1111g, 1112g and a feed pattern 1110f. The first region 1100a may be referred to as a radiator region, and the second region 1100b may be referred to as a ground region (or a feed region).

[0285] The first dielectric substrate 1010a may be disposed on the transparent region 311 of the glass panel 310. A first transparent antenna 1100-1 and a second transparent antenna 1100-2 may be formed on one side of the first dielectric substrate 1010a. The first transparent antenna 1100-1 may be referred to as a first radiation structure, and the second transparent antenna 1100-2 may be referred to as a second radiation structure. The second dielectric substrate 1010b may include a first grounding region 1110g and a second grounding region 1120g. The second dielectric substrate 1010b may be disposed in the recess 49R of the metal frame 49 and the opaque region 312 of the glass panel 310.

[0286] A first groove pattern region 1100s-1 implemented with a groove pattern 1110s may be disposed at the lower portion of the first transparent antenna 1100-1 or the second transparent antenna 1100-2. In addition, a slot antenna structure implemented with a second groove pattern region 1100s-2 may be disposed between the first transparent antenna 1100-1 and the second transparent antenna 1100-2. A groove pattern 1110s may be disposed at the lower portion of the first transparent antenna 1100-1. One side end portion of the pattern region 1100c formed with the groove pattern 1110s and one side end portion of the first ground region 1100g may be spaced apart by a first spacing distance L1.

[0287] The other side end of the pattern area 1100c where the second groove pattern area 1100s-2 is formed and the one side end of the second grounding area 1120g can be separated by a second separation distance L2 which is the same as the first separation distance L1, but is not limited thereto. The first separation distance L1 and the second separation distance L2 can be greater than the horizontal distance L between the third conductive pattern 1130 constituting the first transparent antenna 1100-1 and the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2. H Longer.

[0288] One side end and the other side end of the pattern region 1100c constituting the slot antenna may be separated from the boundary side of the first transparent antenna 1100-1 and the second transparent antenna 1100-2 by a predetermined gap distance or more. In this regard, a first gap distance G1 may be formed from one side end of the pattern region 1100c formed with the groove pattern 1100s to the lower boundary of the first conductive pattern 1110 constituting the first transparent antenna 1100-1. A second gap distance G2 which is the same as the first gap distance G1 may be formed from the other side end of the pattern region 1100c formed with the second groove pattern region 1100s-2 to the boundary side of the sixth conductive pattern 1160 constituting the second transparent antenna 1100-2.

[0289] The groove pattern 1100s may include a first groove pattern 1110s and a second groove pattern 1120s. The first groove pattern 1110s may be formed vertically along an axial direction on the pattern area 1100c. The first groove pattern 1110s may be configured to radiate a signal of a first operating frequency band. The second groove pattern 1120s may be formed horizontally from a portion of the first groove pattern 1110s toward another axial direction perpendicular to the axial direction. The second groove pattern 1120s may be configured to radiate a signal of a second operating frequency band higher than the first operating frequency band. In this regard, the first operating frequency band may be set to a 2.4 GHz frequency band, and the second operating frequency band may be set to a 5.5 GHz frequency band.

[0290] The first groove pattern area 1110s-1 and the second groove pattern area 1120s-2 may respectively include a plurality of groove patterns, such as the first groove pattern 1110s to the fourth groove pattern 1140s. The first groove pattern 1110s may form a vertical groove region. The second groove pattern 1120s may form a horizontal groove region in a first direction in another axial direction. The groove pattern 1110s may also include an additional groove pattern extending from one end of the first groove pattern 1110s. The groove pattern 1110s may also include a third groove pattern 1130s fed by the feeding pattern 1130f. The groove pattern 1110s may also include a fourth groove pattern 1140s. The third groove pattern 1130s may be referred to as a feeding groove pattern, and the fourth groove pattern 1140s may be referred to as a matching groove pattern.

[0291] The third groove pattern 1130s may be formed such that one end thereof extends from one end of the first groove pattern 1110s. The third groove pattern 1130s may be horizontally formed in a second direction in another axial direction in a direction opposite to the second groove pattern 1120s. The third groove pattern 1130s may be configured to be coupled and fed through the feeding pattern 1130f to feed a signal of the first working frequency band or the second working frequency band. The fourth groove pattern 1140s may be formed such that one end thereof extends from the other end of the third groove pattern 1130s. The fourth groove pattern 1140s may be formed to be parallel to the first groove pattern 1110s.

[0292] Fig.20b The antenna components and Fig.19c The difference in the structure of the antenna assembly is that the opaque substrate is integrally made on the glass panel 310, rather than being made separately. Fig.20b In the antenna assembly, the feeding structure implemented by the opaque substrate is implemented by directly printing on the glass panel 310, rather than being made separately by the FPCB.

[0293] Reference Fig.20b (a), a first transparent dielectric substrate 1000a having a transparent electrode layer formed thereon can be manufactured. In addition, a glass panel 310 having a transparent region 311 and an opaque region 312 can be manufactured. In the glass panel manufacturing process of the vehicle, a metal wire / plate for connector connection can be realized (fired). As in the case of a heat wire realized in the glass of the vehicle, a transparent antenna mounting portion can be realized in a metal form on the glass panel 310. In this regard, in order to electrically connect to the first conductive pattern of the first transparent dielectric substrate 1000a, a second conductive pattern can be realized in the region having the adhesive layer 1041 formed thereon.

[0294] In this regard, the second dielectric substrate 1010b formed with the second conductive pattern may be manufactured integrally with the glass panel 310. The second dielectric substrate 1010b may be formed integrally with the glass panel 310 at the opaque region 312 of the glass panel 310. The frit pattern 312 formed with the opaque region 312 of the second dielectric substrate 1010b may be removed. The second conductive pattern may be realized by forming a feed pattern 1120f on the second dielectric substrate 1010b and forming ground patterns 1121g, 1122g on both sides of the feed pattern 1120f.

[0295] Reference Fig.20b (b), the transparent antenna assembly 1000 can be attached to the glass panel 310. In this regard, a first transparent dielectric substrate 1000a formed with a transparent electrode layer can be configured in a transparent region 311 of the glass panel 310. The antenna assembly 1000 can be manufactured by combining at least one second dielectric substrate 1010b in a lower region of the first transparent dielectric substrate 1000a. The first transparent dielectric substrate 1000a and the second dielectric substrate 1010b can be combined by ACF bonding or low-temperature welding to realize a transparent antenna assembly. Thus, the first conductive pattern formed on the first transparent dielectric substrate 1000a can be electrically connected to the second conductive pattern formed on the second dielectric substrate 1010b. When a plurality of antenna elements are implemented on the glass panel 310, the feeding structure 1100f made of the second dielectric substrate 1010b can also be implemented as a plurality of feeding structures.

[0296] Reference Fig.20b (c), the first transparent dielectric substrate 1000a and the second dielectric substrate 1010b can be joined at the first position P1. The connector component 313 such as the fakra cable can be joined to the second dielectric substrate 1010b at the second position P2. The transparent antenna assembly 1000 can be combined with the telematics control unit (TCU) 300 using the connector component 313. To this end, the second conductive pattern formed on the second dielectric substrate 1010b can be electrically connected to the connector at one end of the connector component 313. The connector at the other end of the connector component 313 can be electrically connected to the telematics control unit (TCU) 300.

[0297] Hereinafter, a vehicle having an antenna module according to one aspect of the present specification will be described in detail. Fig.21 This shows a configuration in which a plurality of antenna modules disposed at different positions of the vehicle of this specification are combined with other components of the vehicle.

[0298] Reference Figures 1 to 21The vehicle 500 has a conductive vehicle body that acts as an electrical ground. The vehicle 500 may have a plurality of antennas 1100a to 1100d that may be disposed at different positions of the glass panel 310. The antenna assembly 1000 may be configured such that the plurality of antennas 1100a to 1100d include a communication module 300. The communication module 300 may include a transceiver circuit 1250 and a processor 1400. The communication module 300 may be equivalent to a TCU of the vehicle or constitute at least a portion of a TCU.

[0299] The vehicle 500 may include an object detection device 520 and a navigation system 550. The vehicle 500 may include an additional processor 570 in addition to the processor 1400 included in the communication module 300. The additional processor 570 may be physically distinguished from the processor 1400 or may be functionally distinguished and implemented on a substrate. The processor 1400 may be implemented as a TCU, and the processor 570 may be implemented as an ECU (Electronic Control Unit).

[0300] In the case where the vehicle 500 is an autonomous driving vehicle, the processor 570 may be an autonomous driving integrated controller (ADCU: Automated Driving Control Unit) integrated with an ECU. Based on the information sensed by the camera 531, the radar 532, and / or the laser radar 533, the processor 570 may search for a path and control the increase or decrease of the speed of the vehicle 500. To this end, the processor 570 may be linked with the processor 530 equivalent to the MCU in the object detection device 520 and / or the communication module 300 equivalent to the TCU.

[0301] The vehicle 500 may include a first transparent dielectric substrate 1010a and a second dielectric substrate 1010b configured on a glass panel 310. The first transparent dielectric substrate 1010a may be formed inside the glass panel 310 of the vehicle or attached to the surface of the glass panel 310. The first transparent dielectric substrate 1010a may be configured to form a conductive pattern in the form of a metal mesh. The vehicle 500 may include an antenna module 1100 on one side of the dielectric substrate 1010, wherein the antenna module 1100 is formed with a conductive pattern formed in the shape of a metal mesh to radiate a wireless signal.

[0302] The antenna assembly 1000 may include a first antenna module 1100a to a fourth antenna module 1100d to perform multiple input and output (MIMO). The first antenna module 1100a may be configured at the upper left side of the glass panel 310, the second antenna module 1100b may be configured at the lower left side, the third antenna module 1100c may be configured at the upper right side, and the fourth antenna module 1100d may be configured at the lower right side. The first antenna module 1100a may be referred to as the first antenna ANT1, the second antenna module 1100b may be referred to as the second antenna ANT2, the third antenna module 1100c may be referred to as the third antenna ANT3, and the fourth antenna module 1100d may be referred to as the fourth antenna ANT4. The first antenna ANT1 may be referred to as the first antenna module ANT1, the second antenna ANT2 may be referred to as the second antenna module ANT2, the third antenna ANT3 may be referred to as the third antenna module ANT3, and the fourth antenna ANT4 may be referred to as the fourth antenna module ANT4.

[0303] As described above, the vehicle 500 may include a telematics control unit (TCU) 300 as a communication module. The TCU 300 may be controlled to transmit and receive signals through at least one of the first to fourth antenna modules 1100a to 1100d. The TCU 300 may include a transceiver circuit 1250 and a baseband processor 1400.

[0304] Thus, the vehicle may further include a transceiver circuit 1250 and a processor 1400. A portion of the transceiver circuit 1250 may also be configured in units of antenna modules or a combination thereof. The transceiver circuit 1250 may be controlled so that a wireless signal of at least one of the first to third frequency bands is radiated through antenna modules ANT1 to ANT4. The first to third frequency bands may be a low frequency band (LB), a middle frequency band (MB), and a high frequency band (HB) for 4G / 5G wireless communications, but are not limited thereto.

[0305] The processor 1400 is operably combined with the transceiver circuit 1250 and can be composed of a modem operating at a baseband. The processor 1400 can be configured to receive or send a signal through at least one of the first antenna module ANT1 and the second antenna module ANT2. The processor 1400 can perform a diversity operation or a MIMO operation using the first antenna module ANT1 and the second antenna module ANT2 to transmit the signal to the interior of the vehicle.

[0306] The antenna module may be disposed in different areas on one side and the other side of the glass panel 310. The antenna module may simultaneously receive signals from the front direction of the vehicle and perform multiple input and output (MIMO). In this regard, the antenna module may further include a third antenna module ANT3 and a fourth antenna module ANT4 in addition to the first antenna module ANT1 and the second antenna module ANT2 to perform 4X4 MIMO.

[0307] The processor 1400 may be configured to select an antenna module to communicate with the entity based on the driving path of the vehicle and the communication path of the entity communicating with the vehicle. The processor 1400 may perform MIMO operation using the first antenna module ANT1 and the second antenna module ANT2 based on the direction of the vehicle. Alternatively, the processor 1400 may perform MIMO operation using the third antenna module ANT2 and the second antenna module ANT4 based on the direction of the vehicle.

[0308] The processor 1400 may perform multiple input and output (MIMO) in the first frequency band through two or more antennas among the first antenna ANT1 to the fourth antenna ANT4. The processor 1400 may perform multiple input and output (MIMO) in at least one of the second frequency band and the third frequency band through two or more antennas among the first antenna ANT1 to the fourth antenna ANT4.

[0309] Therefore, when the signal transmission and reception performance of the vehicle decreases in a certain frequency band, the vehicle can transmit and receive signals through other frequency bands. As an example, for a wider communication coverage and connection reliability, the vehicle can preferentially perform communication connection in the first frequency band, which is a low frequency band, and then perform communication connection in the second and third frequency bands.

[0310] The processor 1400 can control the transceiver circuit 1250 to perform carrier aggregation (CA) or dual connectivity (DC) through at least one of the first antenna ANT1 to the fourth antenna ANT4. In this regard, the communication capacity can be expanded by aggregating the second and third frequency bands that are wider than the first frequency band. In addition, the communication reliability can be improved by utilizing a plurality of antenna elements configured in different areas of the vehicle to provide dual connectivity with surrounding vehicles or entities.

[0311] The broadband transparent antenna assembly that can be disposed on the vehicle glass and the vehicle having the same have been described above. Next, the technical effects of the broadband transparent antenna assembly that can be disposed on the vehicle glass and the vehicle as described above will be described.

[0312] According to the present specification, a broadband transparent antenna assembly having a plurality of conductive patterns that can be arranged on vehicle glass is provided, thereby enabling 4G / 5G broadband wireless communication in the vehicle.

[0313] According to this specification, considering the configuration structure of the transparent antenna configured on the vehicle glass and the vehicle's own structure, the WIFI / BT antenna structure that can coexist with the transparent antenna is configured in the opaque area of ​​the vehicle glass, thereby minimizing the size of the entire antenna assembly.

[0314] According to the present specification, in a structure including a WIFI / BT antenna and a transparent antenna, electrical characteristics of the antenna, such as impedance matching characteristics of the antenna and antenna efficiency, can be optimized.

[0315] According to the present specification, the WIFI / BT antenna for vehicle glass can be guided to radiate from the opaque area toward the glass, thereby minimizing the influence of radiation loss caused by the metal frame of the frit portion of the opaque area.

[0316] According to the present specification, a WIFI / BT antenna is implemented by a groove pattern of a dielectric substrate, and is configured so that the WIFI / BT antenna is separated from the conductive pattern of a transparent antenna by a predetermined interval or more, thereby being able to maintain the isolation between the WIFI / BT antenna and the transparent antenna below a predetermined level.

[0317] According to the present specification, a broadband antenna structure made of a transparent material can be provided that can reduce feed loss and improve antenna efficiency while operating in a broadband.

[0318] According to the present specification, it is possible to improve the efficiency of a feeding structure of a broadband transparent antenna assembly that can be disposed on vehicle glass, and ensure the reliability of a mechanical structure including the feeding structure.

[0319] The following detailed description will further clarify the additional scope to which this specification can be applied. However, since a person skilled in the art can clearly understand the various changes and modifications within the concept and scope of this specification, it should be understood that the specific embodiments of the preferred embodiments described in detail and this specification are only examples.

[0320] In connection with the aforementioned present specification, the design of the antenna assembly including the transparent antenna and the vehicle controlling it and its driving can be implemented by a computer-readable code on a medium having a program recorded thereon. Computer-readable media include all types of storage devices storing data that can be read by a computer system. Examples of computer-readable media include HDD (Hard Disk Drive), solid-state drive (Solid State Disk, SSD), SDD (Silicon Disk Drive), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., and can also be implemented in the form of a carrier wave (e.g., Internet-based transmission). In addition, the computer may also include a control unit of the terminal. Therefore, the detailed description described above should not be construed as restrictive in all respects, but should be construed as exemplary. The scope of this specification should be determined by a reasonable interpretation of the attached claims, and all changes within the equivalent scope of this specification should fall within the scope of this specification.

Claims

1. A vehicle, wherein: include: a metal frame having an opening formed inside the metal frame; A glass panel including a transparent area and an opaque area; as well as An antenna assembly is arranged on the glass panel; The antenna assembly comprises: A first dielectric substrate is disposed on the transparent area of ​​the glass panel, and a first transparent antenna and a second transparent antenna are formed on one side surface of the first dielectric substrate; A second dielectric substrate, including a first grounding region and a second grounding region, disposed in the recess of the metal frame and the opaque region of the glass panel; and a groove pattern formed in a pattern region disposed between the first ground region and the second ground region; The groove pattern comprises: A first groove pattern is vertically formed on the pattern area along an axial direction and is configured to radiate a signal in a first working frequency band; and The second groove pattern is horizontally formed from a portion of the first groove pattern along another axial direction perpendicular to the one axial direction, and is configured to radiate a signal of a second operating frequency band higher than the first operating frequency band.

2. The vehicle according to claim 1, wherein: The first groove pattern forms a vertical groove area, and the second groove pattern forms a horizontal groove area along a first direction of the other axis direction, The groove pattern comprises: a third groove pattern, one end of which extends from one end of the first groove pattern and is horizontally formed along a second direction of the other axial direction, and the third groove pattern is configured to feed a signal of the first working frequency band or the second working frequency band; and A fourth groove pattern, one end of which extends from the other end of the third groove pattern and is formed parallel to the first groove pattern.

3. The vehicle according to claim 2, characterized in that The first groove pattern, the third groove pattern, and the fourth groove pattern are configured to radiate a first signal of the first working frequency band toward the transparent area of ​​the glass panel. The lower area of ​​the first groove pattern, the second groove pattern, the third groove pattern and the fourth groove pattern are configured to radiate a second signal of the second working frequency band toward the transparent area of ​​the glass panel. The signals in the first working frequency band and the second working frequency band are Wi-Fi signals or Bluetooth signals.

4. The vehicle according to claim 2, wherein: The groove pattern further includes a fifth groove pattern, The fifth groove pattern is horizontally formed from the second portion of the first groove pattern along another axial direction perpendicular to the one axial direction, and is arranged to be parallel to the second groove pattern. The second groove pattern is configured to radiate a second signal of a first sub-frequency band of the second working frequency band, The fifth notch pattern is configured to radiate a third signal of a second sub-frequency band of the second operating frequency band that is higher than the first sub-frequency band.

5. The vehicle according to claim 2, wherein: The second groove pattern comprises: a first sub-groove pattern, one end of which is formed extending from an end of the first groove pattern and is formed perpendicular to the first groove pattern; and a second sub-groove pattern formed from an end of the first sub-groove pattern to be perpendicular to the first sub-groove pattern and arranged to be parallel to the first groove pattern; The groove pattern further includes a fifth groove pattern, which is horizontally formed from a portion of the second sub-groove pattern along another axial direction perpendicular to the one axial direction. The second sub-groove pattern of the second groove pattern is configured to radiate a second signal of a first sub-frequency band of the second working frequency band, The fifth notch pattern is configured to radiate a third signal of a second sub-frequency band of the second operating frequency band that is higher than the first sub-frequency band.

6. The vehicle according to claim 2, wherein: The second groove pattern comprises: a first sub-groove pattern, one end of which is formed extending from an end of the first groove pattern and is formed perpendicular to the first groove pattern; and a second sub-groove pattern formed from an end of the first sub-groove pattern to be perpendicular to the first sub-groove pattern and arranged to be parallel to the first groove pattern; The groove pattern also includes: a fifth groove pattern formed horizontally from an end of the second sub-groove pattern along another axial direction perpendicular to the one axial direction; and a sixth groove pattern, formed vertically from the end of the fifth groove pattern along the one-axis direction, The second sub-groove pattern of the second groove pattern is configured to radiate a second signal of a first sub-frequency band of the second working frequency band, The sixth notch pattern is configured to radiate a third signal of a second sub-frequency band of the second operating frequency band that is higher than the first sub-frequency band.

7. The vehicle according to claim 1, wherein: The first transparent antenna comprises: A first conductive pattern, comprising a first portion and a second portion, wherein the first portion is vertically connected to the second portion, and the second portion is electrically connected to the first feeding pattern; a second conductive pattern electrically connected to a first portion of the first ground conductive pattern of the first ground region; and a third conductive pattern electrically connected to the second portion of the first ground conductive pattern, the second conductive pattern having a size smaller than that of the third conductive pattern, the second conductive pattern being arranged between the first portion of the first conductive pattern and the first ground conductive pattern, and the first portion of the first conductive pattern and the third conductive pattern being arranged on opposite sides with respect to the second portion of the first conductive pattern; The second transparent antenna comprises: a fourth conductive pattern, comprising a third portion and a fourth portion, the third portion being vertically connected to the fourth portion, and the fourth portion being electrically connected to the second feeding pattern; a fifth conductive pattern electrically connected to the first portion of the second ground conductive pattern; and a sixth conductive pattern electrically connected to the second portion of the second ground conductive pattern, the size of the fifth conductive pattern being smaller than that of the sixth conductive pattern, the fifth conductive pattern being arranged between the third portion of the fourth conductive pattern and the second ground conductive pattern, and the third portion of the fourth conductive pattern and the sixth conductive pattern being arranged on opposite sides with respect to the fourth portion of the fourth conductive pattern; The third conductive pattern faces the sixth conductive pattern.

8. The vehicle according to claim 7, wherein: One end of the pattern region where the groove pattern is formed is spaced apart from the other end of the first ground region by a first spacing distance. The other end of the pattern region is spaced apart from the one end of the second ground region by a second spacing distance which is the same as the first spacing distance. The first spaced apart distance and the second spaced apart distance are longer than a horizontal distance between the third conductive pattern constituting the first transparent antenna and the sixth conductive pattern constituting the second transparent antenna.

9. The vehicle according to claim 7, characterized in that A first gap distance is formed from one end of the pattern area where the groove pattern is formed to a boundary side of the third conductive pattern constituting the first transparent antenna, A second gap distance that is the same as the first gap distance is formed from the other end of the pattern area to the boundary side of the sixth conductive pattern constituting the second transparent antenna, The first gap distance and the second gap distance are set to αxλmin of a wavelength λmin corresponding to the lowest frequency of the first working frequency band, where α is a positive real number.

10. The vehicle according to claim 7, wherein: The first conductive pattern and the third conductive pattern operate in a first dipole antenna mode in a first frequency band, The first conductive pattern and the third conductive pattern form an asymmetric structure, The fourth conductive pattern and the sixth conductive pattern operate in a second dipole antenna mode in the first frequency band, The fourth conductive pattern and the sixth conductive pattern form an asymmetric structure.

11. The vehicle according to claim 10, wherein: The first conductive pattern operates in a first monopole antenna mode in a second frequency band higher than the first frequency band, The fourth conductive pattern operates in a second monopole antenna mode in the second frequency band, The groove pattern operates in the first working frequency band in a first groove mode through the first groove pattern, The second frequency band and the first operating frequency band overlap in at least a portion of the frequency band, The third conductive pattern is disposed between the first conductive pattern and the first groove pattern to prevent interference between a first current component formed in a horizontal direction of the first conductive pattern and a second current component formed in a vertical direction of the first groove pattern.

12. The vehicle according to claim 11, wherein: The second conductive pattern operates as a radiator in a third frequency band higher than the second frequency band, The fifth conductive pattern acts as a radiator in the third frequency band, The groove pattern operates in the first groove mode through the second groove pattern in the second working frequency band, The third frequency band and the third operating frequency band overlap in at least a portion of the frequency band, The third conductive pattern is arranged between the second conductive pattern and the second groove pattern to prevent interference between a third current component in a first horizontal direction formed in the second conductive pattern and a fourth current component in a second horizontal direction which is opposite to the first horizontal direction formed in the second groove pattern.

13. The vehicle of claim 2, wherein: The vertical length of the first groove pattern in the one-axis direction is formed to be a first length and a first width within a prescribed range based on 10 mm. The horizontal length of the second groove pattern in the other axial direction is formed to be a second length and a second width within a prescribed range based on 6.8 mm.

14. The vehicle according to claim 13, wherein: A signal is applied through a feeding pattern formed at a lower portion of the third dielectric substrate where the pattern area is formed, and radiated through the third groove pattern, The third groove pattern is formed with a third length as a horizontal length in the other axis direction and a third width, The third width of the third groove pattern is set to be narrower than the first width of the first groove pattern and the second width of the second groove pattern.

15. A vehicle, wherein: include: a metal frame having an opening formed inside the metal frame; A glass panel including a transparent area and an opaque area; as well as An antenna assembly, disposed on the glass panel; The antenna assembly comprises: A first dielectric substrate is disposed on the transparent area of ​​the glass panel, and a first transparent antenna and a second transparent antenna are formed on one side surface of the first dielectric substrate; A second dielectric substrate, including a first grounding region and a second grounding region, disposed in the recess of the metal frame and the opaque region of the glass panel; and a third dielectric substrate disposed apart from one side of at least one of the first ground region and the second ground region; The third dielectric substrate includes a groove pattern formed in a pattern area on one side of the third dielectric substrate. The groove pattern comprises: A first groove pattern is vertically formed on the pattern area along an axial direction and is configured to radiate a signal in a first working frequency band; and The second groove pattern is horizontally formed from a portion of the first groove pattern along another axial direction perpendicular to the one axial direction, and is configured to radiate a signal of a second operating frequency band higher than the first operating frequency band.

16. The vehicle of claim 15, wherein: The first groove pattern forms a vertical groove area, and the second groove pattern forms a horizontal groove area along a first direction of the other axis direction, The groove pattern comprises: a third groove pattern, one end of which extends from one end of the first groove pattern and is horizontally formed along a second direction of the other axial direction, the third groove pattern being configured to feed a signal of the first working frequency band or the second working frequency band; and A fourth groove pattern, one end of which extends from the other end of the third groove pattern and is formed parallel to the first groove pattern.

17. The vehicle according to claim 16, characterized in that The first groove pattern, the third groove pattern, and the fourth groove pattern are configured to radiate a first signal of the first working frequency band toward the transparent area of ​​the glass panel. The lower area of ​​the first groove pattern, the second groove pattern, the third groove pattern and the fourth groove pattern are configured to radiate a second signal of the second working frequency band toward the transparent area of ​​the glass panel. The signals in the first working frequency band and the second working frequency band are Wi-Fi signals or Bluetooth signals.

18. The vehicle of claim 15, wherein: The first transparent antenna comprises: A first conductive pattern, comprising a first portion and a second portion, wherein the first portion is vertically connected to the second portion, and the second portion is electrically connected to the first feeding pattern; a second conductive pattern electrically connected to a first portion of the first ground conductive pattern of the first ground region; and a third conductive pattern electrically connected to the second portion of the first ground conductive pattern, the second conductive pattern having a size smaller than that of the third conductive pattern, the second conductive pattern being arranged between the first portion of the first conductive pattern and the first ground conductive pattern, and the first portion of the first conductive pattern and the third conductive pattern being arranged on opposite sides with respect to the second portion of the first conductive pattern; The second transparent antenna comprises: a fourth conductive pattern, comprising a third portion and a fourth portion, the third portion being vertically connected to the fourth portion, and the fourth portion being electrically connected to the second feeding pattern; a fifth conductive pattern electrically connected to the first portion of the second ground conductive pattern; and a sixth conductive pattern electrically connected to the second portion of the second ground conductive pattern, the size of the fifth conductive pattern being smaller than that of the sixth conductive pattern, the fifth conductive pattern being arranged between the third portion of the fourth conductive pattern and the second ground conductive pattern, and the third portion of the fourth conductive pattern and the sixth conductive pattern being arranged on opposite sides with respect to the fourth portion of the fourth conductive pattern; The third conductive pattern faces the sixth conductive pattern.

19. The vehicle of claim 18, wherein: The device further includes a second groove pattern region, wherein the second groove pattern region is formed in a pattern region arranged between the first grounding region and the second grounding region, One end portion of the pattern region where the groove pattern is formed is spaced apart from one end portion of the first ground region by a first spacing distance. The other end of the pattern area where the second groove pattern area is formed is spaced apart from the one end of the second grounding area by a second spacing distance which is the same as the first spacing distance. The first spaced apart distance and the second spaced apart distance are longer than a horizontal distance between the third conductive pattern constituting the first transparent antenna and the sixth conductive pattern constituting the second transparent antenna.

20. The vehicle according to claim 19, characterized in that A first gap distance is formed from one end of the pattern area where the groove pattern is formed to a boundary side of the first conductive pattern constituting the first transparent antenna, A second gap distance which is the same as the first gap distance is formed from the other end of the pattern area where the second groove pattern area is formed to the boundary side of the sixth conductive pattern constituting the second transparent antenna, The first gap distance and the second gap distance are set to αxλmin of a wavelength λmin corresponding to the lowest frequency of the first working frequency band, where α is a positive real number.

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