Single-layer ground conduction antenna
By providing the first electrode and the second electrode in the same plane on the dielectric substrate, the problem of poor frequency consistency in existing antennas in mass production is solved, signal stability and consistency are achieved, the manufacturing process is simplified and the cost is reduced.
Patent Information
- Application Number
- CN202421585852.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-05
AI Technical Summary
During mass production, existing patch antennas have poor frequency consistency and unstable signal due to differences in media thickness and overlapping area.
A single-layer ground conductor antenna design is adopted. By providing a first electrode and a second electrode on the dielectric substrate, they are placed in the same surface, capacitance is generated using the overlapping area between the electrodes, and a welding surface is provided on the bottom surface of the substrate to ensure welding uniformity.
Improve the frequency consistency and stability of the antenna, reduce the risk of frequency difference caused by material and process differences, improve the frequency tolerance problem of multi-layer design, and make the signal more stable.
Smart Images
Figure CN223181387U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of antenna structures, in particular to a single-layer ground-guide antenna. Background Art
[0002] With the rapid development of the wireless communication field, various antenna structures have been widely applied to wearable products or 5G network devices. Due to advantages such as simple structure and low cost, common patch antennas are suitable for uses such as wireless network communication. However, the frequency consistency of traditional patch antennas fluctuates, resulting in large differences in received signals during mass production. Therefore, there are often problems such as poor signal quality during use, which leads to poor antenna functionality.
[0003] The design structure of existing bipolar antennas is generally a single-layer chip design. A first metal sheet is disposed above a dielectric substrate, and a second metal sheet is disposed below the dielectric substrate. The capacitance is generated according to the overlapping area of the upper and lower metal sheets. Due to process or product size tolerances, the overlapping area between the upper and lower parts of the dielectric is often different during mass production, resulting in excessive frequency tolerances of the product and poor frequency consistency. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a single-layer ground-guide antenna, aiming at the deficiencies of the existing technology, to ensure the frequency consistency and stability of the antenna, and thus achieve the mass production of the product.
[0005] To achieve the above purpose, the specific technical solution of a single-layer ground-guide antenna of the utility model is as follows:
[0006] A single-layer ground-guide antenna includes a substrate. On the top surface of the substrate, a first electrode aligned with its rear end and a second electrode aligned near the right end are distributed. There is a non-covered area between the first electrode and the second electrode. The first electrode and the second electrode are arranged in parallel in a strip shape. There is also a non-covered area between the second electrode and the frontmost end of the top surface of the substrate. On the left and right end faces of the substrate, there are a left-end face metal and a right-end face metal connected to the first electrode and the second electrode. By setting the first electrode and the second electrode on the top surface of the substrate, the design method of making the bipolar antenna in the same plane avoids the problem that the frequency tolerance of the product is too large and the received signal of the product is affected due to differences in the dielectric thickness and the overlapping area between the top and bottom surfaces during mass production. It can not only reduce the risk of frequency differences caused by materials and processes, but also improve the problem of large frequency tolerances caused by multi-layer designs.
[0007] Preferably, on the bottom surface of the substrate, there are also a left bottom welding surface and a right bottom welding surface respectively connected to the left-end face metal and the right-end face metal.
[0008] Preferably, multiple parallel electrodes can be provided on the substrate.
[0009] Preferably, the first electrode and the second electrode can be combined into one integral piece. The combined electrode can fully cover the top surface of the substrate or can be made into a relatively narrow electrode.
[0010] Preferably, the material of the substrate is ceramic material, resin material or polymer material.
[0011] Preferably, the materials of the first electrode and the second electrode are silver, copper or nickel alloy.
[0012] Preferably, the first electrode and the second electrode are attached to the substrate in the form of thick film, thin film or lamination.
[0013] Preferably, the left bottom welding surface and the right bottom welding surface are provided with an electroplated layer or a sprayed layer for facilitating soldering.
[0014] Preferably, the left bottom welding surface is aligned with the leftmost end of the bottom of the substrate, the right bottom welding surface is aligned with the rightmost end of the substrate, and the left bottom welding surface and the right bottom welding surface are arranged in parallel.
[0015] A single-layer ground guide antenna provided by the present utility model has the following advantages:
[0016] By providing the first electrode and the second electrode on the top surface of the substrate and adopting the design method of making the bipolar antenna in the same plane, the product avoids the problem that the frequency tolerance is too large during mass production and the signal reception of the product is affected due to the differences in the dielectric thickness and the overlapping area between the top surface and the bottom surface. It can not only reduce the risk of frequency differences caused by materials and processes, but also improve the problem of large frequency tolerance caused by multi-layer design. The frequency consistency and stability of the antenna are improved, and the signal is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic three-dimensional structure diagram of the single-layer ground guide antenna provided by the present utility model;
[0018] Figure 2 is a schematic top view structure diagram of the single-layer ground guide antenna provided by the present utility model;
[0019] Figure 3 is a schematic bottom view structure diagram of the single-layer ground guide antenna provided by the present utility model;
[0020] Figure 4 is a schematic top view of multiple electrodes of the single-layer ground guide antenna provided by the present utility model;
[0021] Figure 5 is a schematic top view of the integral electrode of the single-layer ground guide antenna provided by the present utility model; Figure 1 ;
[0022] Figure 6Top view schematic of the monolithic electrode of the single-layer ground guide antenna provided by the present utility model Figure 2 。
[0023] In the figure: 1. First electrode; 2. Second electrode; 3. Non-coverage area; 4. Left-end face metal; 5. Right-end face metal; 6. Left-bottom welding surface; 7. Right-bottom welding surface. Specific embodiments
[0024] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0025] Refer to Figures 1 to 6 , a single-layer ground guide antenna provided by the present utility model, includes a substrate. The top surface of the substrate is distributed with a first electrode 1 aligned with its rear end and a second electrode 2 aligned near the right end. There is a non-coverage area 3 between the first electrode 1 and the second electrode 2. The first electrode 1 and the second electrode 2 are arranged in parallel strips. There is also a non-coverage area 3 between the second electrode 2 and the frontmost end of the top surface of the substrate. The left and right end faces of the substrate are provided with a left-end face metal 4 and a right-end face metal 5 that are connected to the first electrode 1 and the second electrode 2 and are connected at both ends.
[0026] Through the single-layer design of the center of the dielectric substrate by the first electrode 1 and the second electrode 2, the product avoids the problem that the frequency tolerance is too large during mass production and the received signal of the product is affected due to the differences in the dielectric thickness and the overlapping area between the top surface and the bottom surface. It can not only reduce the risk of frequency differences caused by materials and processes, but also improve the problem of large frequency tolerance caused by the multi-layer design.
[0027] The capacitance is generated by the overlapping area between the first electrode 1 and the second electrode 2. The left-end face metal 4 and the right-end face metal 5 are used to connect the signal leads, so that the antenna has the function of receiving and transmitting signals.
[0028] In order to facilitate surface mount welding, the bottom surface of the substrate is also provided with a left-bottom welding surface 6 and a right-bottom welding surface 7 that are respectively connected to the left-end face metal 4 and the right-end face metal 5, and can be applied to surface mount welding occasions.
[0029] Furthermore, the left-bottom welding surface 6 is aligned with the leftmost end of the bottom of the substrate, the right-bottom welding surface 7 is aligned with the rightmost end of the substrate, and the left-bottom welding surface 6 and the right-bottom welding surface 7 are arranged in parallel. The alignment design of the left-bottom welding surface 6 and the right-bottom welding surface 7 can ensure that during the welding process, the heat distribution is more uniform, so as to obtain a better welding effect and reduce the structural stress and potential welding defects caused by uneven welding. At the same time, the alignment design also helps to realize the automation of welding, improve production efficiency and welding quality.
[0030] As Figure 2 and Figure 3 shown, there are two embodiments for the widths of the first electrode 1 and the second electrode 2.
[0031] The substrate can be made of ceramic material, resin material or polymer material; the first electrode 1 and the second electrode 2 are made of conductive materials, such as silver, copper, nickel alloy, etc.
[0032] Furthermore, the single-layer ground guide antenna of the present application is designed as a single-layer ground guide antenna, and the electrodes on the substrate have the functions of solder wettability or through connection.
[0033] Specifically, the first electrode 1, the second electrode 2, the left-end face metal 4, the right-end face metal 5, the left-bottom welding face 6 and the right-bottom welding face 7 are attached to the substrate by thick-film process, thin-film process or lamination process, and then the left-end face metal 4, the right-end face metal 5, the left-bottom welding face 6 and the right-bottom welding face 7 are made to have the solder function by electroplating process or spraying process.
[0034] Referring to Figure 4 , multiple parallel electrodes can be arranged on the substrate. Arranging multiple parallel electrodes can optimize the radiation characteristics of the antenna, improve the gain and directivity, and make the transmission effect better in a specific direction. At the same time, arranging multiple parallel electrodes can also increase the bandwidth of the antenna, enabling it to work in a wider frequency range, thus meeting more application requirements. By reasonably designing the arrangement and spacing of the electrodes, the radiation pattern of the antenna can be further optimized, reducing unnecessary interference and losses.
[0035] Referring to Figure 5 and Figure 6 , the first electrode 1 and the second electrode 2 can be combined into one whole piece. The combined electrode can completely cover the top surface of the substrate or become a narrower electrode. Setting the electrode as one whole piece helps to simplify the manufacturing process of the antenna, reducing the assembly time and cost. The design of the whole-piece electrode can also reduce the resistance and energy loss, thereby improving the working efficiency and performance. At the same time, it can enhance the mechanical stability of the antenna, making it more durable and reliable, especially under harsh environmental conditions. It helps to improve the overall structural strength of the antenna, preventing the electrode from breaking or being damaged during long-term use.
[0036] In summary, a single-layer ground guide antenna provided by the present utility model, through the single-layer design of the first electrode 1, the second electrode 2 and the substrate, can not only reduce the risk of frequency differences caused by materials and processes, but also improve the problem of large frequency tolerance caused by multi-layer design. The frequency consistency and stability of the antenna are improved, making the signal more stable.
[0037] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A single-layer ground-guide antenna, comprising a substrate, characterized in that, On the top surface of the substrate, a first electrode (1) aligned with its rear end and a second electrode (2) aligned near the right end are distributed. There is a non-covered area (3) between the first electrode (1) and the second electrode (2). The first electrode (1) and the second electrode (2) are arranged in parallel strips. There is also a non-covered area (3) between the second electrode (2) and the foremost end of the top surface of the substrate. On the left and right end faces of the substrate, there are left-end face metal (4) and right-end face metal (5) that are connected to the first electrode (1) and the second electrode (2) at both ends.
2. The single-layer ground guide antenna according to claim 1, characterized in that, On the bottom surface of the substrate, there are also a left bottom welding surface (6) and a right bottom welding surface (7) that are respectively connected to the left-end face metal (4) and the right-end face metal (5).
3. The single-layer ground-guide antenna according to claim 1, characterized in that, Multiple parallel electrodes can be arranged on the substrate.
4. A single-layer ground guide antenna according to claim 3, characterized in that, The material of the substrate is a ceramic material, a resin material, or a polymer material.
5. The single-layer ground-guide antenna according to claim 4, characterized in that, The materials of the first electrode (1) and the second electrode (2) are silver, copper, or nickel alloy.
6. The single-layer ground guide antenna according to claim 2, characterized in that, The first electrode (1) and the second electrode (2) are attached to the substrate in the form of thick film, thin film, or lamination.
7. The single-layer ground guide antenna according to claim 6, wherein, The left bottom welding surface (6) and the right bottom welding surface (7) are provided with an electroplated layer or a sprayed layer for facilitating soldering.
8. The single-layer ground guide antenna according to claim 2, characterized in that, The left bottom welding surface (6) is aligned with the leftmost end of the bottom of the substrate, the right bottom welding surface (7) is aligned with the rightmost end of the substrate, and the left bottom welding surface (6) and the right bottom welding surface (7) are arranged in parallel.
9. A single-layer ground-guide antenna according to claim 1, characterized in that, The first electrode (1) and the second electrode (2) can be combined into one piece.