A fingered master tape structure and a radio window antenna

Abstract

The utility model relates to wireless communication antenna technical field, especially point to a kind of female band structure and radio window formula antenna of finger, including metal female band layer and multiple mutually parallel metal finger strip, metal finger strip one end is connected main feeder circuit through metal female band, the other end is free end, and the overall of finger female band structure is comb-like.The utility model proposes a kind of female band structure design of vehicle radio glass silk screen antenna, namely finger female band structure, and female band shape design is ingenious, easy to implement, effectively increases antenna area;Under the premise of satisfying process requirement, in limited area, expand the effective radiation area of antenna, enhance antenna signal receiving strength, improve the gain of antenna.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication antenna technology, and in particular to a finger-shaped master band structure and a radio window antenna. Background Technology

[0002] Radio screen-printed antennas are widely used in automotive windshields, forming the antenna by printing metal lines on the glass surface. However, the effective radiation area of ​​screen-printed antennas on the windshield surface of existing vehicles is limited, resulting in low antenna gain. To address this issue, the effective area of ​​the heating wire is typically reduced to increase the effective area of ​​the antenna wire. The heating wire carries a small current to generate heat for de-icing and defogging. Reducing the area of ​​the heating wire significantly affects its heating performance, obstructs visibility, and poses a considerable safety hazard. Therefore, a novel structure that can increase the antenna area and improve performance within a limited glass area is urgently needed to meet both the heating performance requirements of the heating wire and the ever-increasing antenna performance demands. Utility Model Content

[0003] To address the problem of antenna area being limited by heating wires in existing technologies, this invention provides a finger-shaped master band structure and a radio window antenna that expand the effective radiation area of ​​the antenna within a limited region.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A finger-shaped busbar structure includes a metal busbar layer and multiple parallel metal fingers. One end of each metal finger is connected to the main power supply line via the metal busbar, and the other end is a free end. The overall finger-shaped busbar structure is comb-shaped.

[0005] Furthermore, the finger-shaped master tape structure is formed by curing with silver paste.

[0006] Furthermore, the metal mother tape layer is inverted hook shape. The hook lengthens and bends the current path at the upper end, which is equivalent to a "small antenna extension section", resulting in a stronger signal; the hook is an oblique transition, which disperses stress and makes conductivity more reliable.

[0007] Furthermore, the metal finger strip is parallel to the extension direction of the main feed line and matches the direction of the radio waves, resulting in the highest reception efficiency and the strongest signal. In addition, the heating temperature is uniform, preventing localized overheating or underheating.

[0008] A radio window antenna, comprising the aforementioned finger-shaped master band structure, further comprising: The main feed line includes a heating wire circuit and a radio antenna; The finger-shaped busbar structure is symmetrically distributed on both sides of the main feeder line, with the metal strips facing outwards.

[0009] Furthermore, the radio antenna includes one or more of FM, AM, and DAB frequencies.

[0010] Furthermore, the main power supply line adopts a tempered glass low-temperature silver paste screen printing process, which prints metal screen printing lines on the surface of tempered glass according to the glass screen printing drawings.

[0011] Beneficial effects: (1) This utility model proposes a master band structure design for a glass screen-printed antenna for a car radio, namely a finger-shaped master band structure. The master band shape design is ingenious and easy to implement, effectively increasing the antenna area. Under the premise of meeting the process requirements, the effective radiation area of ​​the antenna is expanded in a limited area, enhancing the antenna signal reception strength and improving the antenna gain. (2) The radio window antenna expands the effective radiation area of ​​the antenna in a limited area, improves the antenna gain, and at the same time takes into account the heating area of ​​the heating wire to ensure heating performance. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the finger-shaped mother tape structure of this utility model; Figure 2 This is a schematic diagram of the radio window antenna of this utility model.

[0014] 1. Main power supply line; 2. Finger-shaped motherboard structure; 3. Tempered glass substrate; 4. Metal motherboard layer; 5. Metal finger strip. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0018] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0019] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0020] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0021] Increasing the area of ​​the metal master strip layer within a limited region can expand the effective radiation area of ​​an antenna to some extent. However, printing a large area of ​​metal master strip layer using the same printing process can cause a whitening effect on the glass surface, affecting aesthetics. To meet both process requirements and effectively improve antenna gain, a finger-shaped master strip structure was designed. This novel structure satisfies process requirements while significantly expanding the effective radiation area of ​​the antenna, thus improving antenna performance. Specifically, for example... Figure 1 The present invention provides a finger-shaped mother tape structure 2, comprising a metal mother tape layer 4 and multiple parallel metal fingers 5. One end of each metal finger 5 is connected to the main feeder line 1 via the metal mother tape, and the other end is a free end. The finger-shaped mother tape structure 2 is generally comb-shaped. In a preferred embodiment, the finger-shaped mother tape structure 2 is formed by curing with silver paste.

[0022] Preferably, the metal mother layer 4 is inverted hook shape. The hook lengthens and bends the current path at the upper end, which is equivalent to a "small antenna extension" and the signal is stronger; the hook is an oblique transition, which disperses stress and makes the conductivity more reliable.

[0023] The metal finger strip 5 is parallel to the extension direction of the main feed line 1. This matches the direction of the radio waves, resulting in the highest reception efficiency and strongest signal. In addition, the heating temperature is uniform, preventing localized overheating or underheating.

[0024] This utility model also provides a radio window antenna, such as Figure 2The device includes a glass substrate and metal antenna lines on the surface of the glass substrate. The metal antenna lines include a finger-shaped master tape structure 2 as described above, and also include a main feed line 1. The main feed line 1 includes a heating wire line and a radio antenna. The radio antenna includes one or more of FM, AM, and DAB.

[0025] The finger-shaped busbar structure 2 is symmetrically distributed on both sides of the main feeder line 1, with the metal strips facing outwards.

[0026] The main feeder line 1 adopts a tempered glass low-temperature silver paste screen printing process, which prints metal screen printing lines on the surface of tempered glass according to the glass screen printing drawing.

[0027] like Figure 2 As shown, the main feed line 1 and the finger-shaped motherboard structure 2 are arranged within a limited area on the surface of the tempered glass substrate 3. The metal screen printing directly connected to the finger-shaped motherboard structure 2 serves as both a heating wire and a radio antenna; according to the wiring diagram of the radio antenna, the glass screen-printed antenna is printed using metallic silver paste. The larger the effective area of ​​the antenna, the higher the antenna's receiving strength and thus the higher its gain; for example... Figure 2 As shown, the finger-shaped master strip structure 2 of this utility model is symmetrically arranged on both sides of the feed line 1. One end of the metal finger strip 5 is connected to the metal master strip layer 4, and the other end is suspended, forming a comb-shaped extension structure. By designing the finger-shaped master strip structure 2, the effective area of ​​the antenna can be increased, and the antenna gain can be improved.

[0028] The antenna is screen-printed on the surface of a tempered glass substrate using a low-temperature silver paste screen printing process. Actual measurements show that, under the same tempered glass substrate area, the finger-shaped master band structure 2 of this invention significantly improves antenna gain compared to the traditional vehicle-mounted glass antenna master band structure, thus meeting the gain requirements of vehicle radio antennas.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A finger-shaped mother tape structure, characterized in that: It includes a metal mother tape layer (4) and multiple parallel metal fingers (5). One end of the metal fingers (5) is connected to the main power supply line (1) through the metal mother tape, and the other end is a free end. The finger-shaped mother tape structure (2) is comb-shaped as a whole.

2. The finger-shaped mother tape structure according to claim 1, characterized in that: The finger-shaped mother tape structure (2) is formed by curing silver paste.

3. The finger-shaped mother tape structure according to claim 1, characterized in that: The metal mother tape layer (4) is hook-shaped.

4. The finger-shaped mother tape structure according to claim 1, characterized in that: The metal finger bar (5) is parallel to the extension direction of the main power supply line (1).

5. A window-type antenna for radios, characterized in that: Including the finger-shaped mother tape structure (2) as described in any one of claims 1 to 4, further comprising: The main feed line (1) includes a heating wire circuit and a radio antenna; The finger-shaped mother strip structure (2) is symmetrically distributed on both sides of the main feeder line (1), with the metal strip facing outward.

6. A radio window antenna according to claim 5, characterized in that: The radio antenna includes one or more of FM, AM, and DAB frequencies.

7. A radio window antenna according to claim 5, characterized in that: The main power supply line (1) adopts the tempered glass low temperature silver paste screen printing process, and prints metal screen lines on the surface of tempered glass according to the glass screen printing drawing.

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