Vehicle glass having antenna

Abstract

Provided is vehicle glass having an antenna. The vehicle glass includes: a first glass layer; a metal thin film layer disposed above the first glass layer; and a ground layer disposed below the first glass layer. The metal thin film layer includes: a quadrilateral slot formed inside the metal thin film layer; a feeding line extending in the longitudinal direction from a feeding part toward the quadrilateral slot; and a longitudinal pole pattern extending in the longitudinal direction from the end of the feeding line toward the inside of the quadrilateral slot. The ground layer extends from the feeding part toward the quadrilateral slot, and the upper end of the ground layer is positioned lower than a longitudinal position corresponding to the lower end of the quadrilateral slot.

Description

Automotive glass equipped with an antenna

[0001] The present invention relates to equipment and structures for wireless communication and vehicles, and more specifically, to vehicle glass equipped with an antenna.

[0002] Wireless communication technology for the transmission and reception of information continues to advance. In particular, antenna devices are required to transmit or receive signals for wireless communication, and various types and methods of antenna devices have been developed to achieve higher performance.

[0003] Meanwhile, in the automotive sector as well, various wireless communication technologies are being utilized to transmit and receive vehicle-related information in response to advancements in information and communication technology. Previously, only low-level radio transmission and reception technologies, such as radio, were equipped in vehicles; however, recently, there has been a significant increase in demand for vehicles to transmit and receive large amounts of information with various entities, such as other vehicles, surrounding objects, infrastructure, or base stations, as referred to by the term V2X. Furthermore, regarding wireless communication methods for transmitting and receiving vehicle information, there is an increasing number of cases utilizing not only short-range communication systems like Wi-Fi but also global wireless communication systems such as 3GPP LTE (4G), 5G, and 6G.

[0004] To support signal transmission and reception using such various communication systems, various types of antenna devices have been equipped in vehicles. Due to the radio wave blocking characteristics of the vehicle body, additional antenna structures formed integrally on the exterior of the vehicle body, such as the shark fin antenna shown in Fig. 1, have traditionally been mainly adopted. However, since such external antennas have a negative impact on the aesthetics of the vehicle, various methods have been proposed to reduce the aesthetic disparity. As an example, the need for glass antennas installed on the vehicle's glass has emerged.

[0005] However, conventional proposals for antennas installed on vehicle glass are limited to merely transmitting and receiving radio signals, or even if antennas supporting high-capacity communication are proposed conceptually, they are limited to the form of film antennas attached to vehicle glass at an experimental level and fail to provide a solution applicable to the mass production of vehicle glass that can be used in actual vehicles.

[0006] In particular, when vehicle glass is installed in a vehicle, there are various metal structures such as metal support panels on which the glass is seated or A-pillars provided in the vehicle frame, and thus the problem of causing interference to the antenna element installed in the vehicle glass has not been resolved.

[0007] Furthermore, since vehicle types and models are highly diverse, it is required to set the radiation direction of the built-in antenna to be suitable for the vehicle type and model in order to satisfy the primary radiation direction conditions of the signal according to the communication method; however, conventional antennas provided for vehicles have very complex patterns, which has presented a problem in that it is practically impossible to actually apply the antenna to individual vehicles.

[0008] One objective of the present invention to solve the aforementioned problems is to provide a vehicle glass equipped with a mass-producible antenna that has more stable performance and durability by being designed to take into account the influence of a glass stack-up structure mounted on an actual vehicle and a metal structure placed around the glass.

[0009] Another objective of the present invention to solve the aforementioned problems is to provide a vehicle glass having a type-specific antenna pattern to enable signal transmission and reception according to various communication systems applicable to a vehicle, and in particular, having an antenna capable of transmitting and receiving GNSS (Global Navigation Satellite System) signals.

[0010] Another objective of the present invention to solve the aforementioned problems is to provide a vehicle glass equipped with an antenna capable of controlling the target-direction direction of a radiated signal by simply changing the antenna pattern according to the type and model of the vehicle.

[0011] However, the problem to be solved by the present invention is not limited thereto and may be expanded in various ways without departing from the spirit and scope of the present invention.

[0012] A vehicle glass having an antenna according to one embodiment of the present invention comprises: a first glass layer; a metal thin film layer disposed on the upper portion of the first glass layer; and a ground layer disposed on the lower portion of the first glass layer, wherein the metal thin film layer comprises: a square slot formed inside the metal thin film layer; a feed line extending longitudinally from a feed portion toward the square slot; and a longitudinal pole pattern extending longitudinally from the end portion of the feed line toward the interior of the square slot; and wherein the ground layer extends from the feed portion toward the square slot, and the upper portion of the ground layer may be located lower than a longitudinal position corresponding to the lower portion of the square slot.

[0013] According to one aspect, the region extending from the lower end of the square slot of the metal thin film layer to a longitudinal position corresponding to the upper end of the ground layer can form a CPW feeding region for coplanar waveguide (CPW) feeding.

[0014] According to one aspect, the region corresponding to the longitudinal position of the ground layer of the metal thin film layer and the ground layer can form a CPWG (Coplanar waveguide with ground) type feed region.

[0015] According to one aspect, the ground layer may be a metal support panel for installing glass of a vehicle in which the vehicle glass is installed.

[0016] According to one aspect, the vehicle glass equipped with the antenna may be configured such that the resonant frequency changes according to the transverse length of the square slot.

[0017] According to one aspect, a vehicle glass equipped with the antenna may be configured such that the directional direction of the radiated signal is controlled according to the longitudinal length of the vehicle glass.

[0018] According to one aspect, a vehicle glass having the antenna may be configured such that the directional direction of the radiation signal is controlled according to the longitudinal length of the upper region of the square slot of the metal thin film layer.

[0019] According to one aspect, a vehicle glass equipped with the antenna may be configured such that the directional direction of the radiated signal is controlled according to the distance between the transverse center of the longitudinal pole pattern and the transverse center of the square slot.

[0020] According to one aspect, the vehicle glass having the antenna may have a metal frame on at least one side.

[0021] According to one aspect, the metal frame may include at least one of a frame for installing glass of a vehicle in which the vehicle glass is installed, an A-pillar, a B-pillar, and a C-pillar.

[0022] The disclosed technology may have the following effects. However, this does not mean that a specific embodiment must include all of the following effects or only the following effects; therefore, the scope of the rights of the disclosed technology should not be understood as being limited by this.

[0023] According to the vehicle glass equipped with an antenna according to one embodiment of the present invention described above, by being designed to take into account the influence of a glass stack-up structure mounted on an actual vehicle and a metal structure placed around the glass, it has the advantageous effect of being able to mass-produce while possessing more stable performance and durability.

[0024] In addition, according to a vehicle glass having an antenna according to one embodiment of the present invention described above, it is possible to have a type-specific antenna pattern to enable signal transmission and reception according to various communication systems applicable to a vehicle, and in particular, to embed an antenna capable of transmitting and receiving GNSS (Global Navigation Satellite System) signals in the vehicle glass.

[0025] In addition, according to the vehicle glass equipped with an antenna according to one embodiment of the present invention described above, the target-direction direction of the radiated signal can be controlled by simply changing the antenna pattern according to the type and model of the vehicle.

[0026] FIG. 1 is an example of a shark-fin antenna for a vehicle according to the prior art.

[0027] FIG. 2 is an example diagram of an antenna device provided on a vehicle glass.

[0028] FIG. 3 shows a layer structure of a vehicle glass equipped with an antenna according to one embodiment of the present invention.

[0029] FIG. 4 is an example diagram of a misalignment-based connector connection structure according to one aspect of the present invention.

[0030] FIG. 5 is an example of an embodiment of a connector connection structure for a vehicle glass equipped with an antenna according to one embodiment of the present invention.

[0031] FIG. 6 illustrates the vehicle installation state of a vehicle glass equipped with an antenna according to one embodiment of the present invention.

[0032] Figure 7 illustrates the vehicle mounting state of the front windshield according to one side.

[0033] Figure 8 shows an exemplary arrangement relationship between an antenna pattern and a metal structure provided on a vehicle glass.

[0034] FIG. 9 is a top view and a bottom view of a vehicle glass equipped with an antenna according to one embodiment of the present invention.

[0035] Figure 10 shows the change in current distribution according to the transverse length of the square slot.

[0036] Figure 11 shows the change in resonance frequency according to the transverse length of the square slot.

[0037] FIG. 12 shows the basic radiation pattern of a vehicle glass equipped with an antenna according to one embodiment of the present invention.

[0038] Figure 13 shows the change in the orientation direction of the radiation signal according to the transverse offset of the longitudinal pole pattern or the longitudinal length of the vehicle glass.

[0039] FIG. 14 illustrates the transverse offset of a longitudinal pole pattern or the longitudinal length of a vehicle glass.

[0040] Figure 15 illustrates the change in transverse length of a longitudinal pole pattern.

[0041] Figure 16 shows the CPW fed region and CPWG fed region of the metal thin film layer.

[0042] FIG. 17 is a plan view of a vehicle glass equipped with a metal frame and an antenna.

[0043] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail.

[0044] However, this is not intended to limit the invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0045] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any of a plurality of related described items.

[0046] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0047] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0048] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0049] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate an overall understanding of the present invention, the same reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted.

[0050]

[0051] outline

[0052] As mentioned above, various wireless communication technologies are being utilized in the automotive sector to transmit and receive vehicle-related information, and the V2X field, in particular, is receiving significant attention for its ability to transmit and receive large amounts of information with various entities such as other vehicles, surrounding objects, infrastructure, or base stations. Regarding wireless communication methods for transmitting and receiving vehicle information, there is an increasing number of cases utilizing not only short-range communication systems such as Wi-Fi but also global wireless communication systems such as 3GPP LTE, 5G, and 6G.

[0053] In order to support signal transmission and reception using such various communication systems, various types of antenna devices have been provided in vehicles, and due to the radio wave blocking characteristics of the vehicle body, additional antenna structures formed integrally on the exterior of the vehicle body, such as the shark-fin antenna (10) shown in Fig. 1, have been mainly adopted in the past.

[0054] However, since such external antennas have a negative impact on the aesthetics of the vehicle, various methods have been proposed to reduce the aesthetic disparity. For example, the need for a glass antenna installed on the glass of a vehicle has arisen. FIG. 2 is an example of an antenna device provided on vehicle glass. As shown in FIG. 2, an antenna installation area (20) may be provided, for example, on the front windshield installed on a vehicle. However, this is merely an example, and an antenna installation area may be provided on at least a part of the front, side, or rear of the vehicle.

[0055] Although the concept of equipping an antenna on the glass of a vehicle has been proposed in the past, conventional proposals for antennas installed on vehicle glass were limited to merely transmitting and receiving radio signals, or even if antennas supporting high-capacity communication were proposed conceptually, they were limited to the form of film antennas attached to vehicle glass at an experimental level and failed to provide a solution applicable to the mass production of vehicle glass that can be used in actual vehicles.

[0056] Furthermore, conventional antenna patterns for transmitting and receiving signals in broadband or multi-band frequency bands employed highly complex structures, which reduced mass production feasibility and made them difficult to realize. Since the detailed structure of the pattern required to radiate signals in a specific frequency band demanded highly precise numerical and geometric design, there was a very high probability that the signal would not be radiated as designed due to slight design changes or changes in the application. However, automobiles are classified into a wide variety of types, such as SUVs and sedans; moreover, even within the same vehicle type, the curvature, shape, and thickness of the glass vary depending on the model, which can lead to variations in the characteristics of the radiated signals. In vehicle signal transmission and reception, specific signals are required to possess directional properties—for example, GNSS signals are controlled to radiate upwards toward satellites, while V2X signals are radiated horizontally. To achieve this, there was a need to tune the antenna pattern to suit each vehicle type and / or model. However, it was practically impossible to tune conventional complex patterns for application to individual vehicles.

[0057] The present invention aims to solve such problems. According to a vehicle glass equipped with an antenna in one embodiment of the present invention, the design takes into account the influence of a glass stack-up structure mounted on an actual vehicle and / or a metal structure placed around the glass, thereby providing the advantageous effect of being able to mass-produce while possessing more stable performance and durability. In other words, the need for a glass antenna that prevents the external antenna from damaging the exterior appearance of the vehicle has arisen. According to a vehicle glass equipped with an antenna in one aspect of the present invention, stable performance and durability can be provided by taking into account the influence of a metal structure located around the vehicle glass while protecting the antenna pattern from the external environment.

[0058] Furthermore, regarding the antenna pattern provided on the vehicle glass according to one aspect of the present invention, in radiating broadband radiation, multi-band radiation, or signals of a specific frequency band, by simplifying possible pattern design and simplifying elements for tuning the transmitted and received signals, the radiation characteristics of the transmitted and received signals can be easily controlled according to the vehicle to which they are applied. That is, by simplifying design parameters, the radiation characteristics of the signal according to the application can be simply tuned.

[0059] Hereinafter, a vehicle glass having an antenna according to embodiments of the present invention will be described in more detail with reference to the drawings.

[0060]

[0061] Automotive glass equipped with an antenna

[0062] FIG. 3 shows a layer structure of a vehicle glass having an antenna according to one embodiment of the present invention. As shown in FIG. 3, a vehicle glass (1000) having an antenna according to one aspect of the present invention may include at least one of a first glass layer (100), a metal thin film layer (200), a polymer bonding layer (300), and a second glass layer (400).

[0063] For example, according to one aspect of the present invention, a vehicle glass (100) having an antenna may include a first glass layer (100) and a metal thin film layer (200) disposed on the first glass layer and having an antenna pattern. Note that the metal thin film layer (200) may, for example, be coated with silver (Ag) paste on the first glass layer (100), but is not limited thereto, and any metal material for forming the antenna pattern may be used.

[0064] According to one aspect, the vehicle glass (1000) may further include a polymer bonding layer (300) disposed on top of a metal thin film layer and a second glass layer (400) bonded to the first glass layer and the metal thin film layer by the polymer bonding layer. Accordingly, the vehicle glass (1000) according to one aspect of the present invention may be a double-bonded glass. According to one aspect, the polymer bonding layer (300) may be polyvinyl-butyral (PVB), but is not limited thereto.

[0065] As a non-limiting example, the thickness of the first glass layer (100) and the second glass layer (400) may be 2.1 mm, the thickness of the polymer bonding layer (300) may be 0.8 mm, and the thickness of the metal thin film layer may be 30 to 80 nm, preferably 5 to 20 µm, but is not limited thereto.

[0066] However, the vehicle glass equipped with an antenna according to one aspect of the present invention may have a thickness and / or shape capable of providing safety in the event of a collision of the vehicle. For example, double-bonded glass bonded, for instance, via PVB, may be used for the front windshield of the vehicle to reduce the possibility of breakage due to a collision or of an object from the outside penetrating and entering the interior. However, it should be noted that the technical concept of the present invention is not limited to double-bonded glass.

[0067] In this regard, for example, in the case of automotive glass such as double-bonded glass, an antenna pattern can be provided by forming a metal thin film layer (200) between a first glass layer and a second glass layer as shown in FIG. 3. Since the antenna pattern has glass layers on both the upper and lower layers, it can be implemented to have very low risk of damage and high durability. However, in such a structure, the metal thin film layer is required to be formed to have a very thin thickness, so if a conventional antenna pattern design is followed in which a metal layer of a certain thickness or more is provided, it is highly likely that resonance will not occur as intended. Furthermore, in a conventional antenna design, the layer providing the antenna pattern is required to be placed at the outermost edge, but in the case of an antenna pattern embedded in double-bonded glass as shown in FIG. 3, glass layers are provided on both the upper and lower sides, and such glass layers have a considerable thickness to ensure the safety of the vehicle. In a non-limiting manner, for example, glass with a total thickness of 4 mm or more is positioned adjacent to the antenna pattern as a dielectric, so that, according to a general antenna design, a signal is not radiated and an electromagnetic field is formed inside the double-bonded glass. Accordingly, the antenna patterns according to the embodiments of the present invention described below are designed to achieve target radiation characteristics while maintaining the basic performance of automotive glass, taking into account such special characteristics.

[0068] First, considering that, unlike a conventional patch antenna in which a ground region is formed on one side of the dielectric and a microstrip line is disposed on the other side of the dielectric, only a single layer of metal thin film (200) can be used for antenna fabrication in the structure of automotive glass, according to one aspect of the present invention, an antenna pattern provided on the metal thin film layer (200) of an automotive glass (1000) equipped with an antenna may adopt a coplanar waveguide (CPW) feeding structure. That is, the antenna pattern provided on the metal thin film layer (200) may include at least one CPW feeding patch for CPW feeding. Here, a structure is required for a coupler to be coupled to the CPW feeding patch for supplying a feeding signal.

[0069] In this regard, FIG. 4 is an exemplary diagram of a misalignment-based connector connection structure according to one aspect of the present invention, and FIG. 5 is an exemplary embodiment of a connector connection structure of a vehicle glass equipped with an antenna according to one embodiment of the present invention.

[0070] As illustrated in FIGS. 4 and 5, according to one aspect of the present invention, a second glass layer (400) and a first glass layer (100) may be joined together in a state including an intended misalignment. That is, the second glass layer (400) may be spaced apart from the first glass layer (100) by, for example, a predetermined distance (d1) in the longitudinal direction. Herein, the longitudinal direction may refer to, for example, the height direction when the vehicle glass is placed in a vehicle, but is not limited thereto. Hereinafter, in this description, 'longitudinal direction' and 'transverse direction' may be used to refer to different directions that are orthogonal to each other. For example, the 'longitudinal direction' may be referred to as the 'first direction' and the 'transverse direction' may be referred to as the 'second direction'. According to one aspect, a metal thin film layer (200) may be formed aligned with a first glass layer at a predetermined position, and a PVB layer (300) may be applied at a position corresponding to the underside of the second glass layer, but is not limited thereto.

[0071] Referring again to FIGS. 4 and 5, by positioning the second glass layer (400) apart from the first glass layer (100) by a predetermined distance (d1), at least a portion of the metal thin film layer (200) may form an area not covered by the second glass layer (400). A connector (500) for feeding power to an antenna pattern may be connected to the area of ​​the metal thin film layer (200) formed in this way that is not covered by the second glass layer (400). Accordingly, according to one aspect of the present invention, a connector (500) for supplying a power signal to an antenna pattern can be connected without performing separate additional processing on the first glass layer (100) or the second glass layer (400).

[0072] According to one aspect, the metal thin film layer (200) antenna pattern includes at least one CPW feed patch for coplanar waveguide (CPW) feeding, and the area not covered by the second glass layer (400) of the aforementioned metal thin film layer (200) may be formed in at least a portion of such CPW feed patch. That is, by positioning the second glass layer (400) at a predetermined distance from the first glass layer (100), at least a portion of the CPW feed patch formed in the metal thin film layer (200) is configured not to be covered by the second glass layer (400), and a connector (500) may be attached to this area. For example, the second glass layer (400) may be removed by 5 mm in the feed patch area to attach the connector in the target band, but it should be noted that this is merely exemplary and is not limited to that value.

[0073] According to one aspect, the longitudinal length of the region in which at least a portion of the metal thin film layer (200) is not covered by the second glass layer (400) may be set to be smaller than the longitudinal length of the glass insert portion of the glass frame of a vehicle in which the vehicle glass according to one aspect of the present invention is installed. Accordingly, when the vehicle glass is installed on the vehicle frame, even if misalignment as described above is included, it can be prevented from being exposed to the outside other than the first glass layer or the second glass layer.

[0074]

[0075] Beam tilting antenna pattern

[0076] As mentioned above, various wireless communication technologies are utilized in the automotive sector to transmit and receive vehicle-related information. In particular, the V2X field, where vehicles transmit and receive large volumes of information with various entities such as other vehicles, surrounding objects, infrastructure, or base stations, is receiving significant attention. Regarding wireless communication methods for such vehicle information transmission and reception, there is an increasing number of cases utilizing not only short-range communication systems like Wi-Fi but also global wireless communication systems such as 3GPP LTE, 5G, and 6G. Furthermore, GNSS antennas for determining vehicle location information are also being equipped as essential components in vehicles. Therefore, there is a growing need for an integrated antenna that combines various band antennas required for internal and external vehicle communication, such as GNSS, Wi-Fi, V2X, and 4G / 5G / 6G. In particular, regarding automotive glass equipped with antennas, there may also be a demand for an integrated antenna capable of performing all signal transmission and reception through various communication systems. As a non-limiting example, the implementation of an integrated antenna in which all antennas for internal and external vehicle communication bands are included on the vehicle's windshield may be required. To achieve this, antennas for all bands may be located together, or a full-field antenna covering a wide band is required.

[0077] According to one aspect of the present invention, the antenna pattern provided on the metal thin film layer (200) may each have antenna patterns for a specific frequency band of a different type capable of transmitting and receiving signals for various communication systems required for internal and external communication of a vehicle. Additionally, according to one aspect, antenna patterns for transmitting and receiving signals for at least some of the communication systems among the plurality of communication systems may be implemented as an integrated antenna pattern embedded in the vehicle glass, and individual antenna patterns for transmitting and receiving signals for at least some of the communication systems among the plurality of communication systems may be implemented in a form embedded in the vehicle glass. Furthermore, according to one aspect, antenna patterns for transmitting and receiving signals for at least some of the communication systems among the plurality of communication systems may be implemented as an integrated antenna pattern embedded in the vehicle glass, and individual antenna devices or integrated antenna devices for transmitting and receiving signals for at least some of the communication systems among the plurality of communication systems may be implemented as separate antenna devices, such as a shark antenna.

[0078] According to one aspect, at least one of a plurality of antenna patterns that can be embedded in vehicle glass may be an antenna pattern capable of transmitting and receiving signals from a GNSS (Global Navigation Satellite System) system. According to one aspect, such an antenna pattern may be configured to transmit and receive signals in a frequency band of 1.43 GHz to 1.55 GHz, but is not limited thereto.

[0079] Meanwhile, as mentioned above, automobiles are classified into a wide variety of types, such as SUVs and sedans. Furthermore, even within the same type of vehicle, the curvature, shape, and thickness of the glass provided vary depending on the model, which can lead to variations in the characteristics of the radiated signals. In the transmission and reception of vehicle signals, it is required that specific signals possess directional properties, such as GNSS signals being radiated upwards to be directed toward satellites. To achieve this, there was a need to tune the antenna pattern to suit each vehicle type and / or model. However, it was practically impossible to tune conventional complex patterns for application to individual vehicles.

[0080] An antenna pattern provided in a vehicle glass according to one aspect of the present invention is configured to radiate broadband radiation, multiband radiation, or signals in a specific frequency band. By simplifying the pattern design and simplifying the elements for tuning the transmitted and received signals, the radiation characteristics of the transmitted and received signals can be easily controlled according to the vehicle to which they are applied. That is, by simplifying the design parameters, the radiation characteristics of the signal according to the application can be simply tuned. More specifically, but not limited to, it is possible to perform beam tilting. In other words, according to the vehicle glass equipped with an antenna according to one aspect of the present invention, the directional direction of the radiated signal can be controlled.

[0081] Hereinafter, a vehicle glass equipped with a beam-tilting antenna according to one aspect of the present invention will be described in more detail with reference to the drawings.

[0082]

[0083] In the following description, the longitudinal direction may refer to the height direction, for example, when automotive glass is placed in a vehicle, but is not limited thereto. In the following description, 'longitudinal direction' and 'transverse direction' may be used to refer to different directions that are orthogonal to each other. In the following description, for convenience of explanation, the up-and-down direction in the drawings may be referred to as the longitudinal direction and the left-and-right direction in the drawings as the transverse direction, but it should be noted that the technical concept of the present invention is not limited thereto.

[0084] In addition, an antenna pattern that can be provided in a vehicle glass having an antenna according to one embodiment of the present invention can be designed considering the specific characteristics of the antenna pattern embedded in the vehicle glass. As described above, a single metal thin film layer (200) for providing an antenna in the vehicle glass is not limited but has a very thin thickness of, for example, 30 to 80 nm or 5 to 20 μm; therefore, if the design of a general planar patch antenna is applied as is, a signal in the target frequency band may not be generated. That is, resonance may not occur at the desired frequency. Furthermore, the vehicle glass having an antenna according to one embodiment of the present invention may have a first layer with a thickness of 2.1 mm, and in particular, when manufactured as double-bonded glass by providing a second layer, the metal thin film layer is located on a glass layer having a total thickness of 4 mm or more. Also, unlike a general patch antenna where the antenna pattern is placed on the outermost layer, the antenna pattern may be placed between two glass layers. Therefore, according to conventional antenna designs, a problem may occur where the resonating signal is not radiated and is trapped between two glass layers. Taking into account such specific characteristics, the antenna pattern of a vehicle glass equipped with an antenna according to one aspect of the present invention is designed so that a signal in a target frequency band can be radiated.

[0085] In addition, an antenna pattern that may be provided on a vehicle glass equipped with an antenna according to one embodiment of the present invention can be designed to ensure maximum visibility of the driver's external area while securing a target radiation pattern and performance. As a non-limiting example, as shown in FIG. 2, the antenna pattern may be designed to be located in an area (20) positioned on one side of the vehicle glass so as not to obstruct the driver's field of vision. Furthermore, to reduce obstruction to the driver's field of vision, the antenna pattern of the vehicle glass equipped with an antenna according to one embodiment of the present invention may be designed in a direction that decreases the total length in one direction even if the total length in one direction is increased. For example, as shown in FIG. 2, the antenna pattern may be designed in a direction that decreases the total length in the longitudinal direction even if the total length in the transverse direction of the vehicle glass is increased. Hereinafter, when described with reference to the drawings attached to this description, the antenna pattern according to the embodiments of the present invention may be designed in a direction that reduces the total length in the 'longitudinal direction' or 'first direction' even if the total length in the 'transverse direction' or 'second direction' is increased. However, it should be understood that such directions are merely exemplary, and the technical concept of the present invention is not limited by the description regarding whether the length in a specific direction is minimized. Furthermore, for example, the first side may mean the right side with respect to the drawings, but is not limited thereto. Hereinafter, in this description, the first side direction of the feed line and the second side direction of the feed line may be understood to refer to directions opposite to each other in the transverse direction.

[0086]

[0087] FIG. 9 is a plan view and a bottom view of a vehicle glass equipped with an antenna according to an embodiment of the present invention. That is, with reference to FIG. 9, a plan view (1000t) and a bottom view (1000b) of a vehicle glass equipped with an antenna according to an embodiment of the present invention are shown. Hereinafter, the plan view of the vehicle glass equipped with an antenna may also be referred to as the front view, and the bottom view of the vehicle glass equipped with an antenna may also be referred to as the rear view, but is not limited thereto.

[0088] Referring to FIGS. 3, 6 and 9, a vehicle glass (1000) equipped with an antenna according to one embodiment of the present invention may include a first glass layer (100), a metal thin film layer (200) disposed on top of the first glass layer, and a ground layer (50) disposed on bottom of the first glass layer.

[0089] According to one aspect, the metal thin film layer (200) may include a square slot (210) formed inside the metal thin film layer, a feed line (205) extending longitudinally from a feed portion toward the square slot, and a longitudinal pole pattern (220) extending longitudinally from the end portion of the feed line toward the inside of the square slot. Around the feed line (205), a trench may be formed on a first transverse side and a second transverse side of the feed line (205) to separate the unetched area of ​​the metal thin film layer (200) from the feed line (205).

[0090] As illustrated in FIG. 9, according to one aspect, the ground layer (50) may be positioned, for example, on the back of the first glass layer (100) and may extend from the feed portion toward the square slot (210). As a non-limiting example, the upper portion of the ground layer (50) may be configured to be located below a longitudinal position corresponding to the lower portion of the square slot (210).

[0091] Accordingly, the region extending from the bottom of the square slot (210) of the metal thin film layer (200) to a longitudinal position corresponding to the top of the ground layer (50) can form a CPW feed region (241, 243) for coplanar waveguide (CPW) feed. Based on such a CPW feed region (241, 243), CPW feed can be performed on a radiator formed by the square slot (210) and the longitudinal pole pattern (220).

[0092] Additionally, the area corresponding to the longitudinal position of the ground layer of the metal thin film layer (200) and the ground layer (50) can form a CPWG (Coplanar waveguide with ground) feed area. Based on such a CPWG feed area, CPWG feed can be performed on a radiator formed by a square slot (210) and a longitudinal pole pattern (220).

[0093] A first part of the connector can be connected to the lower part of the CPW power supply area (241, 243), and a second part of the connector can be connected to the power supply line. Furthermore, a first part of the connector can also be connected to the ground layer (50).

[0094] As a non-limiting example, a vehicle glass equipped with an antenna according to one embodiment of the present invention may be implemented in a form in which rectangular slots are etched in the CPWG, CPW lines, and conductive layer. For example, since the front windshield of a vehicle may be installed at a 30-degree angle, beam tilting of 30 degrees can be performed so that the direction of signal transmission and reception is oriented toward the sky to function as a GNSS antenna and transmit and receive information from satellites. For example, beam tilting can be implemented by distorting the radiation pattern by intentionally increasing the size of the ground.

[0095] FIG. 10 illustrates a change in current distribution according to the transverse length of a square slot. As illustrated in FIG. 10, as a non-limiting example, a vehicle glass equipped with an antenna according to one embodiment of the present invention may have a square slot (210) and a longitudinal pole pattern (220) on the front (1000t) and a ground layer (50) on the rear (1000b). As illustrated in the example in FIG. 10, according to one aspect of the present invention, the ground layer (50) may be positioned up to a location close to the bottom of the square slot (210) so that only a CPWG feed area is provided without a CPW feed area. As illustrated in the current distribution (1000c) of FIG. 10, by performing power supply to the rectangular slot with a CPWG line, a strong surface current flows along the vertical side of the slot, and the resonance frequency can be determined according to the length of the horizontal side of the slot. That is, a vehicle glass equipped with an antenna according to one embodiment of the present invention can be configured so that the resonant frequency changes according to the transverse length (210w) of the square slot. In this regard, FIG. 11 shows the change in resonant frequency according to the transverse length of the square slot. As shown in FIG. 11, it can be seen that the resonant frequency decreases as the transverse length (201w) of the square slot (210) increases to 40 mm, 45 mm, 50 mm, 55 mm, and 60 mm, as a non-limiting example. Therefore, specific frequency tuning is possible by adjusting the transverse length of the square slot (210).

[0096] FIG. 12 shows a basic radiation pattern of a vehicle glass equipped with an antenna according to one embodiment of the present invention, and FIG. 13 shows a change in the directional direction of a radiation signal according to a transverse offset of a longitudinal pole pattern or the longitudinal length of the vehicle glass.

[0097] A vehicle glass equipped with an antenna according to one embodiment of the present invention may be configured such that the directional direction of a radiated signal is controlled according to the longitudinal length of the vehicle glass. More specifically, though not limited to, a vehicle glass equipped with an antenna according to one embodiment of the present invention may be configured such that the directional direction of a radiated signal is controlled according to the longitudinal length of the upper region of a square slot of a metal thin film layer.

[0098] In addition, according to one aspect, a vehicle glass equipped with an antenna according to one embodiment of the present invention may be configured such that the directional direction of a radiated signal is controlled according to the distance between the transverse center of a longitudinal pole pattern and the transverse center of the square slot.

[0099] Hereinafter, the invention will be described in more detail with reference to the drawings. As illustrated in FIG. 12, according to one embodiment of a vehicle glass equipped with an antenna according to one embodiment of the present invention, a maximum gain of 5.38 dBi can be secured at a frequency of 1.5 GHz. When the radiator and the ground plane are in the same plane, the component radiated in the horizontal direction is reinforced, thereby causing beam tilting to occur. As illustrated in FIG. 13, according to one aspect, the maximum beam steering angle can be changed according to the vertical length of the vehicle glass and the lateral offset of the square slot. That is, as illustrated in FIG. 13, beam steering can be performed to achieve a desired degree of beam tilting by, for example, changing the lateral offset of the square slot from 5 mm to 20 mm, and beam steering can be performed to achieve a desired degree of beam tilting by, for example, changing the length of the vehicle glass from 210 mm to 390 mm. Such a change in the direction of the radiated signal may be attributed to a change in impedance matching.

[0100] FIG. 14 illustrates the transverse offset of the longitudinal pole pattern or the longitudinal length of the vehicle glass. As described above, the vehicle glass equipped with an antenna according to one embodiment of the present invention may be configured such that the directional direction of the radiated signal is controlled according to the longitudinal length (Glass_length) of the vehicle glass. More specifically, but not limited to, the vehicle glass equipped with an antenna according to one embodiment of the present invention may be configured such that the directional direction of the radiated signal is controlled according to the longitudinal length of the upper region of the square slot (210) of the metal thin film layer (200). In the vehicle glass equipped with an antenna according to one embodiment of the present invention, the radiation pattern of the slot antenna may be determined by the magnetic current induced by the surface current flowing at the boundary of both sides of the square slot (210). Under symmetric ground conditions, a broadside beam may be formed. Here, if the ground region of the metal thin film layer portion located above the square slot (210) is formed longer, the current path in the longer ground becomes longer, causing a stronger current to flow, and thus a stronger magnetic field is formed, which may cause the radiation pattern to be skewed toward the longer side. Accordingly, according to one aspect of the present invention, it is possible to configure the directional direction of the radiation signal to be controlled according to the longitudinal length of the upper region of the square slot (210) of the metal thin film layer (200). In other words, through the surface current of two antennas with adjusted ground size above the square slot, a stronger magnetic current is formed due to the extended current path in the longer ground, thereby causing the radiation pattern to be skewed upward.

[0101] Meanwhile, as illustrated in FIG. 14, according to one aspect, a vehicle glass equipped with an antenna according to one embodiment of the present invention may be configured such that the directional direction of a radiated signal is controlled according to the distance (220f) between the transverse center (220c) of a longitudinal pole pattern (220) and the transverse center (210c) of a square slot (210). According to one aspect, the feed line (205) and the longitudinal pole pattern (220) may be placed in the transverse center region of the vehicle glass equipped with the antenna, but are not limited thereto. With respect to such a longitudinal pole pattern (220), the directional direction of the radiated signal may be controlled according to the transverse relative position where the square slot (210) is placed. As a non-limiting example, the ground area of ​​the lower part of the square slot may be extended to about three times the vertical length of the square slot for beam steering toward the antenna feed section. In addition, by positioning the feed location so that it is spaced from the center of the square slot by one-tenth of the horizontal length of the square slot, the surface current path is formed asymmetrically, which can increase the beam steering effect due to asymmetric ground conditions. That is, the parameters of the implemented antenna can be described in proportion to ground placement at the bottom of the square slot having a longitudinal length three times that of the longitudinal length of the square slot, or by positioning the feed line so that it is spaced from the center of the square slot by one-tenth of the transverse length of the square slot. Using this principle, it is possible to steer the beam toward the feeding section. Furthermore, by adjusting the feeding location, it is possible to increase the beam steering effect due to asymmetric ground conditions.

[0102] FIG. 15 illustrates a change in the transverse length of a longitudinal pole pattern. According to another aspect of the present invention, it is also possible to control the directional direction of a radiation signal of a vehicle glass equipped with an antenna by changing the transverse length of a longitudinal pole pattern (220). That is, as shown in FIG. 15, beam steering may be set differently by increasing the distance (220aw-2) from the transverse reference position (220r) of the longitudinal pole pattern (220) to the right end (223s) of the longitudinal pole pattern (220) in the second form (1320) compared to the distance (220aw-1) from the transverse reference position (220r) of the longitudinal pole pattern (220) to the right end (223s) of the longitudinal pole pattern (220) in the second form (1320). In other words, beam tilting can be set differently depending on the width of the longitudinal pole pattern (220), that is, the change in transverse length.

[0103] FIG. 16 illustrates the CPW feed region and the CPWG feed region of the metal thin film layer. As described above with reference to FIG. 9, the metal thin film layer (200) of the vehicle glass equipped with an antenna according to one embodiment of the present invention may have a CPW feed region (240) and a CPWG feed region (250). This may be intended to account for the influence of the metal panel when mounted on an actual vehicle, and will be described in detail below in relation thereto. Meanwhile, as shown in FIG. 16, the ratio of the transverse length to the longitudinal length of the square slot (210) formed in the metal thin film layer (200) may be, for example, 5:3, but is not limited thereto. In addition, as described above, beam steering can be achieved in a desired direction and angle by setting a ground of appropriate length.

[0104]

[0105] Minimization of interference in metal structures

[0106] As previously discussed, when vehicle glass is installed in a vehicle, multiple metal structures may exist around the vehicle glass, such as metal support panels or A-pillars for supporting the vehicle glass. When an antenna is provided on the vehicle glass, the metal structures may cause interference with at least some elements of such an antenna, and the radiation performance of the antenna may be significantly degraded.

[0107] In this regard, FIG. 6 illustrates a vehicle installation state of a vehicle glass equipped with an antenna according to one embodiment of the present invention, and FIG. 7 illustrates a vehicle mounting state of a front glass according to one side.

[0108] As previously described with reference to FIG. 3, a vehicle glass (1000) having an antenna according to one aspect of the present invention may include at least one of a first glass layer (100), a metal thin film layer (200), and a second glass layer (400). Additionally, as shown in FIG. 6, according to one aspect, a black band (350) may be disposed on the lower surface of the second glass layer (400). Such a black band (350) may be disposed on the upper surface of the vehicle glass to block external light, but is not limited thereto. Although omitted in FIG. 6, a polymer bonding layer (300) may be disposed on the upper surface of the metal thin film layer to bond the first glass layer (100), the metal thin film layer (200), and the second glass layer (300) together. That is, the vehicle glass (1000) may further include a polymer bonding layer (300) disposed on top of a metal thin film layer, and a second glass layer (400) bonded to the first glass layer and the metal thin film layer by the polymer bonding layer. Accordingly, the vehicle glass (1000) according to one aspect of the present invention may be a double-bonded glass. According to one aspect, the polymer bonding layer (300) may be polyvinyl-butyral (PVB), but is not limited thereto.

[0109] As a non-limiting example, as illustrated in FIG. 7, the vehicle glass according to one aspect may be glass placed on the front of the vehicle. As illustrated exemplarily in FIG. 6 and FIG. 7, when the vehicle glass is installed in the vehicle, a support panel (50) to prevent the glass from entering the interior of the vehicle may be provided on the frame. The vehicle glass can be stably installed in the vehicle by such a support panel (50). As illustrated in FIG. 6 and FIG. 7, a sealer (70) may be applied to at least a portion of the mounting surface of the vehicle glass of the support panel (50). The sealer (70) may allow the vehicle glass to be stably attached to the support panel (50) of the vehicle.

[0110] FIG. 8 illustrates an exemplary arrangement relationship between an antenna pattern and a metal structure provided in a vehicle glass. Although the front windshield of a vehicle is described as an example in FIG. 6 to FIG. 8, it should be noted that the technical concept of the present invention is not limited thereto. It should be understood that the vehicle glass equipped with an antenna according to the embodiments of the present invention includes any glass that can be mounted on a vehicle, including not only the front windshield but also side windows, sunroof glass, and rear window. In the following description, for convenience of explanation, the front windshield may be illustrated as an example in the drawings, but it should be noted that this is merely illustrative and the technical concept of the present invention is not limited to the front windshield.

[0111] As illustrated in FIGS. 6 to 8, when glass equipped with an antenna is placed in a vehicle, various structures capable of causing interference with at least some elements of the antenna pattern may exist around the pattern for implementing the antenna. In particular, since the antenna pattern needs to be placed at the edge of the glass rather than in the center to provide power to the antenna pattern, resolving the problem of interference with surrounding structures must be considered more important. For example, as illustrated in FIGS. 6 to 7, the antenna may be mounted on the top of the front windshield of the vehicle, and a metal support panel to support the vehicle glass may be provided on the upper part of the vehicle body frame where the vehicle glass is seated. Interference with the antenna may occur due to various electrical and magnetic factors, such as a short circuit occurring in the relationship between at least some of the elements constituting the antenna and the metal structure.

[0112] For example, if an antenna pattern is equipped with CPW feed patches, i.e., ground patches, on both sides of the feed line for coplanar waveguide (CPW) feeding, and another metal structure capable of acting as ground is located near the CPW line, a field may be generated between the metal layer constituting the antenna pattern and the metal structure, causing an impedance mismatch due to coupling. For example, charge accumulation may occur between at least a portion of the metal layer constituting the antenna pattern and another metal structure present in the vehicle, resulting in capacitance, which may cause a problem of misaligned impedance matching.

[0113] As illustrated in FIG. 8, the inventors have confirmed that an impedance mismatch occurs due to unintended field formation between at least some of the antenna components and the metal panel, for example, when the metal panel protrudes beyond the ground plane of the antenna (1110) or when the antenna pattern and the ground plane of the antenna are located in an area beyond the metal panel (1120).

[0114] When the metal panel protrudes beyond the ground plane of the antenna (1110), an unintended field is formed between the signal line of the antenna pattern and the metal panel. For example, the antenna pattern may be located in a black band region. When the ground patch of the antenna pattern and part of the signal line are placed overlapping on the metal panel, an unintended field may be formed between the unintended region and the metal panel. In particular, a field is formed between at least part of the signal line and the metal panel, and a problem has been identified in which unintended current flow occurs and resonance occurs in an unintended frequency band, such as when a specific part of the signal line acts as a parasitic element contrary to the intention.

[0115] Even when the antenna pattern and the ground plane of the antenna are positioned in an area beyond the metal panel (1120), an unintended field is generated between the metal panel and the metal layer near the CPW line, causing an impedance mismatch. That is, even when the ground patch and the entire signal line are positioned so as not to overlap with the metal support panel of the vehicle in order to keep the physical distance from the surrounding metal structure as much as possible, an unintended field is generated at least between the metal support panel and the CPW ground patch, affecting the performance of the antenna.

[0116] Automotive glass equipped with an antenna according to embodiments of the present invention is intended to solve these problems. By designing it to reflect the influence of the vehicle's metal panels and frame on antenna performance, it enables stable signal transmission and reception within the designed frequency band when mounted on an actual vehicle. A design suitable for mounting environments for antennas on various types of glass included in a vehicle, including the front windshield exemplified in the drawings, is incorporated. For example, a method to minimize interference caused by metal panels is presented for the antenna design of automotive glass equipped with an antenna mounted on an automobile. Such a design can be applied not only to antennas for the four major bands, such as GNSS, WiFi, and 4G / 5G, but also to broadband automotive antennas. It includes a structure optimized to suppress metal panel interference, along with a design technique that stably supports the bands essential for internal and external vehicle communication. Through this, automotive glass equipped with an antenna that provides high-performance communication functions while maintaining the vehicle's exterior appearance can be realized.

[0117] According to one aspect, a vehicle glass equipped with an antenna according to embodiments of the present invention may adopt a CPWG (Coplanar waveguide with ground) feeding structure by setting a metal structure provided in the vehicle, such as a metal support panel, as a ground plane and connecting it to the planar ground plane of the antenna. Through this, it was confirmed that performance of S11 ≤ -20dB is secured in the band below 5 GHz.

[0118] In this regard, according to one aspect of the present invention, the aforementioned ground layer (50) may be a metal support panel for installing glass of a vehicle in which a vehicle glass (1000) according to one embodiment is installed. That is, according to one embodiment of the present invention, the metal support panel of the vehicle in which the vehicle glass is installed may be recognized as a ground layer for CPWG feeding and may be employed as a component for driving an antenna pattern. That is, by connecting a CWP feed patch (241, 243) included in the antenna pattern to a coupler for feeding the antenna of the vehicle glass (1000) equipped with an antenna according to one embodiment of the present invention, and by connecting the metal support panel of the vehicle as a ground layer, the antenna pattern can be fed in a CPWG manner. Therefore, in the case of an antenna design that does not consider a metal support panel, it is possible to exclude performance degradation caused by the influence of the metal support panel and instead adopt a CPWG feeding method in which stability is improved due to the addition of a ground layer compared to the CPW feeding method.

[0119] Meanwhile, FIG. 17 is a plan view of a vehicle glass equipped with a metal frame and an antenna. As illustrated in FIG. 17, a vehicle glass (1000) equipped with an antenna according to one embodiment of the present invention may have a metal frame on at least one side. For example, the vehicle glass (1000) may include a first metal frame (290a) and / or a second metal frame (290b). FIG. 17 illustrates a frame arranged on two sides as an example, but the technical concept of the present invention is not limited thereto. Here, the metal frame may include, but is not limited to, at least one of a frame for installing glass of a vehicle on which the vehicle glass is installed, an A-pillar, a B-pillar, and a C-pillar, and should be understood to include any radio wave influence structure present in the vehicle. A vehicle glass (1000) having an exemplary antenna as illustrated in FIG. 17 enables antenna designs, such as antenna patterns and / or feed structures, in a state most similar to the state in which the vehicle glass is installed in a vehicle by having a metal frame on at least one side.

[0120]

[0121] Although the invention has been described above with reference to the drawings and embodiments, this does not mean that the scope of protection of the present invention is limited by the drawings or embodiments, and those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention as described in the following claims.

[0122] Although the present invention described above is explained based on a series of functional blocks, it is not limited by the aforementioned embodiments and attached drawings, and it will be obvious to those skilled in the art that various substitutions, modifications, and changes are possible within the scope of the technical concept of the present invention.

[0123] The combination of the aforementioned embodiments is not limited to the aforementioned embodiments, and various forms of combinations in addition to the aforementioned embodiments may be provided as needed for implementation and / or as required.

[0124] In the aforementioned embodiments, methods are described based on flowcharts as a series of steps or blocks; however, the present invention is not limited to the order of the steps, and some steps may occur in a different order or simultaneously with other steps as described above. Furthermore, those skilled in the art will understand that the steps shown in the flowcharts are not exclusive, that other steps may be included, or that one or more steps of the flowcharts may be omitted without affecting the scope of the present invention.

[0125] The foregoing embodiments include examples of various aspects. While it is not possible to describe all possible combinations for representing various aspects, those skilled in the art will recognize that other combinations are possible. Accordingly, the present invention shall be deemed to include all other substitutions, modifications, and changes falling within the scope of the following claims.

[0126] [Explanation of the symbol]

[0127] 50: Ground layer, metal support panel

[0128] 100: 1st glass layer

[0129] 205 : Emergency line

[0130] 200: Metal thin film layer

[0131] 210 : Square slot

[0132] 220 : Longitudinal pole pattern

[0133] 300: Polymer bonding layer

[0134] 400: Second glass layer

[0135] 500 : Connector

[0136] 1000 : Automotive glass equipped with an antenna

Claims

1. As a vehicle glass equipped with an antenna, First glass layer; A metal thin film layer disposed on top of the first glass layer; and It includes a ground layer disposed below the first glass layer, and The above metal thin film layer is, A square slot formed inside the above metal thin film layer; A feed line extending longitudinally from the feed section toward the square slot; and A longitudinal pole pattern extending longitudinally from the end portion of the above power supply line toward the interior of the above square slot; comprising, The above ground layer is, Extending from the feed portion toward the square slot, and the upper portion of the ground layer is located below a longitudinal position corresponding to the lower portion of the square slot, Vehicle glass equipped with an antenna.

2. In Paragraph 1, The region extending from the lower end of the square slot of the metal thin film layer to a longitudinal position corresponding to the upper end of the ground layer is, Forming a CPW feed region for coplanar waveguide (CPW) feeding, Vehicle glass equipped with an antenna.

3. In Paragraph 2, The region corresponding to the longitudinal position of the ground layer of the metal thin film layer and the ground layer are, Forming a CPWG (Coplanar waveguide with ground) feed area, Vehicle glass equipped with an antenna.

4. In Paragraph 1, The above ground layer is, A metal support panel for installing glass of a vehicle in which the above-mentioned vehicle glass is installed, Vehicle glass equipped with an antenna.

5. In Paragraph 1, Vehicle glass equipped with the above antenna, Configured so that the resonance frequency changes according to the transverse length of the above square slot, Vehicle glass equipped with an antenna.

6. In Paragraph 1, Vehicle glass equipped with the above antenna, Configured so that the directional direction of the radiation signal is controlled according to the longitudinal length of the above-mentioned vehicle glass, Vehicle glass equipped with an antenna.

7. In Paragraph 1, Vehicle glass equipped with the above antenna, Configured so that the directional direction of the radiation signal is controlled according to the longitudinal length of the upper region of the square slot of the metal thin film layer, Vehicle glass equipped with an antenna.

8. In Paragraph 1, Vehicle glass equipped with the above antenna, Configured so that the directional direction of the radiation signal is controlled according to the distance between the transverse center of the longitudinal pole pattern and the transverse center of the square slot. Vehicle glass equipped with an antenna.

9. In Paragraph 1, Vehicle glass equipped with the above antenna, having a metal frame on at least one side, Vehicle glass equipped with an antenna.

10. In Paragraph 9, The above metal frame is, A frame for installing glass of a vehicle on which the above-mentioned vehicle glass is installed, comprising at least one of an A-pillar, a B-pillar, and a C-pillar, Vehicle glass equipped with an antenna.

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