WO2015196550A1 - Lds antenna and manufacturing method and apparatus therefor - Google Patents

Lds antenna and manufacturing method and apparatus therefor Download PDF

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Publication number
WO2015196550A1
WO2015196550A1 PCT/CN2014/084949 CN2014084949W WO2015196550A1 WO 2015196550 A1 WO2015196550 A1 WO 2015196550A1 CN 2014084949 W CN2014084949 W CN 2014084949W WO 2015196550 A1 WO2015196550 A1 WO 2015196550A1
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WIPO (PCT)
Prior art keywords
antenna
fractal
lds
fractal antenna
terminal
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Application number
PCT/CN2014/084949
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French (fr)
Chinese (zh)
Inventor
罗玲
罗迤宝
杨博
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2015196550A1 publication Critical patent/WO2015196550A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles

Definitions

  • the present invention relates to the field of communications, and in particular, to an LDS antenna, a method for manufacturing the same, and an apparatus.
  • a fractal antenna has self-similar characteristics and spatial filling property, it can be well applied to mobile terminals with increasingly narrow antenna spaces.
  • Fractal antennas exhibit two distinct advantages over traditional antennas: multi-band and small size. In order to achieve multi-mode requirements in smaller and smaller antenna spaces, the use of fractal antennas is an ideal choice. However, fractal antennas also have drawbacks, and it is difficult to manufacture a fractal antenna with high yield due to the complicated manufacturing process.
  • an antenna manufacturing method comprising: forming a fractal antenna in a terminal housing by laser direct structuring LDS technology.
  • the LDS technology is used to form the fractal antenna in the terminal housing, including: controlling the movement of the laser according to the trajectory of the conductive pattern by using a computer; projecting the laser onto the molded terminal housing to activate the fractal antenna Circuit pattern.
  • the circuit pattern of the fractal antenna comprises at least one of the following: a Hilbert curve, a Minkowski fractal ring curve, a Koch curve.
  • the fractal antenna on the terminal housing is not painted as a whole.
  • the fractal antenna is connected to an antenna port of the terminal motherboard through a microstrip line.
  • an antenna manufacturing apparatus wherein the apparatus comprises: an antenna manufacturing module configured to form a fractal antenna in a terminal housing by laser direct structuring LDS technology.
  • the antenna manufacturing module is further configured to control the movement of the laser according to the trajectory of the conductive pattern by using a computer; projecting the laser onto the molded terminal housing to activate the circuit pattern of the fractal antenna.
  • the fractal antenna on the terminal housing is not painted as a whole.
  • the fractal antenna is connected to an antenna port of the terminal motherboard through a microstrip line.
  • the present invention further provides an LDS antenna, wherein the LDS antenna is formed in a terminal housing by laser direct forming LDS technology, and is not subjected to an overall painting process; the LDS antenna passes through a microstrip line and The antenna ports of the terminal board are connected.
  • the LDS technology is used to manufacture the fractal antenna, and the combination of the two solves the problem that the fractal antenna has low yield in the related art, and the mass production of the fractal antenna becomes possible.
  • the LDS antenna of the invention can not only achieve miniaturization but also support multiple frequency bands and has the characteristics that the antenna production technology meets the requirements.
  • FIG. 1 is a flow chart of a method of fabricating an antenna according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a process for generating a Hilbert curve according to an embodiment of the present invention
  • FIG. 3 is a Hilter curve of a surface of a back casing of a mobile phone according to an embodiment of the present invention
  • FIG. 4 is a second schematic diagram of a Hilbert curve fractal antenna on a surface of a rear casing of a mobile phone according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a connection manner between an antenna and a motherboard according to an embodiment of the present invention
  • the present invention provides an LDS antenna, a method for fabricating the same, and an apparatus.
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • various versatile and demanding wireless terminals are widely used, and the frequency band and shape requirements of the antennas of the wireless terminals are becoming higher and higher, especially the frequency bands currently supported exceed two digits, and the design attracting users is reserved for the antenna design.
  • FIG. 1 is a flowchart of a method for manufacturing an antenna according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps: Step S102: forming a fractal antenna by using LDS technology In the terminal housing.
  • the LDS antenna technology is laser direct structuring technology, which uses a computer to control the movement of the laser according to the trajectory of the conductive pattern, and projects the laser onto the molded three-dimensional plastic device, which is activated in a few seconds.
  • the laser antenna technology is used to form a metal antenna patch directly on the support.
  • Such a technique can directly laser the antenna on the outer casing of the terminal (such as a mobile phone case).
  • the present embodiment provides a preferred embodiment, that is, in the operation of the embodiment, the fractal antenna is formed on the terminal casing by using the LDS technology, and includes: controlling, according to the trajectory of the conductive pattern, by using a computer The movement of the laser; projecting the laser onto the molded terminal housing to activate the circuit pattern of the fractal antenna.
  • the fractal antenna on the terminal housing is not painted as a whole.
  • the fractal antenna is connected to the antenna port of the terminal board through the microstrip line.
  • the circuit pattern of the fractal antenna may include at least one of the following: a Hilbert curve, a Minkowski fractal ring curve, a Koch curve.
  • the Hilbert fractal antenna Since it is composed of multiple sections, the Hilbert curve is a fractal curve that covers more space than a traditional curve.
  • 2 is a schematic diagram of a Hilbert curve generation process according to an embodiment of the present invention. As shown in FIG. 2, it can be regarded as a series of points to fill the entire square surface (which itself remains a curve). With this feature, the size of many antennas can be greatly reduced.
  • the fractal curve has a very symmetrical characteristic, and this complex but regular pattern can be engraved on the terminal back shell as an ornamental pattern.
  • FIG. 3 is a first schematic diagram of a Hilbert curve fractal antenna on the surface of a rear casing of a mobile phone according to an embodiment of the present invention
  • FIG. 4 is a second schematic diagram of a Hilbert curve fractal antenna on the surface of a rear casing of a mobile phone according to an embodiment of the present invention, as shown in FIG. 3 and FIG.
  • the Hilbert curve fractal antenna can be fabricated in different shapes.
  • the terminal antenna has also developed a variety of processes and antenna forms.
  • the LDS is well suited to the full utilization of the corner space of the small space antenna.
  • the LDS accurately controls the routing of the antenna, so that many of the previous ones cannot be implemented in such a small space as the mobile phone.
  • the antenna form is implemented.
  • the terminals are getting thinner and thinner.
  • Many antennas directly use the LDS on the rear case of the terminal in order to obtain the maximum headroom, but the antenna needs to be painted and masked. Due to the process problem, the perfect cover yield is very low. Therefore, the fractal antenna is directly formed on the rear case without performing paint masking, thereby improving the yield.
  • the technical solution of the present invention mainly utilizes the existing LDS process and the fractal antenna to form a terminal antenna with high yield and mass production.
  • the fractal antenna is manufactured by the LDS process.
  • the fractal antenna is formed directly on the rear case to form an ornamental pattern.
  • the surface of the fractal antenna is not painted as a whole, and may be directly exposed or may be a process of highlighting the shape of the antenna after being processed.
  • the fractal antenna includes a plurality of fractal antennas formed by curves. The invention will now be described in further detail with reference to the drawings and embodiments.
  • the scheme of forming a fractal antenna can be obtained by various methods, such as obtaining a fractal antenna by using a Hilbert curve, such as a fractal antenna obtained by using a Minkowski fractal loop curve, or obtaining a fractal antenna by a Koch curve, and the like.
  • the regular fractal antenna is formed in the rear case of the terminal by the LDS process, and has the function of the antenna and the function of the back shell pattern.
  • the way to connect the antenna to the motherboard is to connect the antenna port of the motherboard with the microstrip line.
  • the antenna is connected to the motherboard.
  • the grid part is the part of the microstrip line connected to the antenna port of the motherboard.
  • this embodiment provides an antenna manufacturing process, which is used to implement the above embodiment.
  • 6 is a structural block diagram of an antenna manufacturing apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes: an antenna manufacturing module configured to form a fractal antenna in a terminal housing by an LDS technique.
  • the antenna manufacturing module is further configured to control the movement of the laser according to the trajectory of the conductive pattern by the computer; project the laser onto the molded terminal housing to activate the circuit pattern of the fractal antenna.
  • the fractal antenna on the terminal housing is not painted as a whole.
  • the fractal antenna is connected to the antenna port of the terminal board through the microstrip line.
  • the circuit pattern of the fractal antenna may be at least one of the following: a Hilbert curve, a Minkowski fractal ring curve, a Koch curve. It has already been introduced in the previous section and will not be described here.
  • the embodiment provides an LDS antenna, which is formed in the terminal casing by the LDS technology, and is not used for overall painting processing; the LDS antenna passes through the microstrip line and the terminal board The antenna ports are connected.
  • the present invention relates to a fractal antenna using an LDS process on a terminal, and a method and apparatus for manufacturing the same.
  • the LDS technology is used to manufacture the fractal antenna, and the combination of the two solves the problem that the fractal antenna has low yield in the related art, and the mass production of the fractal antenna becomes possible.
  • the LDS antenna of the invention can not only achieve miniaturization but also support multiple frequency bands and has the characteristics that the antenna production technology meets the requirements.

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Abstract

Disclosed are an LDS antenna and a manufacturing method and apparatus therefor. The method comprises: by means of a laser direct structuring (LDS) technique, forming a fractal antenna at a terminal housing. By means of the present invention, an LDS technique is used to manufacture a fractal antenna. By combining the two, the problem of a low yield of a fractal antenna in the related art is solved, so that mass production of the fractal antenna becomes possible. The LDS antenna in the present invention can not only implement miniaturization but also can support multiple frequency bands and has characteristics meeting the requirements of a production technique for antennas.

Description

一种 LDS天线及其制造方法、 装置 技术领域 本发明涉及通信领域， 特别是涉及一种 LDS天线及其制造方法、 装置。 背景技术 在现有技术中， 由于分形天线具有自相似特性和空间填充性， 所以可以很好地应 用于天线空间日益狭小的移动终端当中。 与传统天线相比， 分形天线表现出两个突出 的优势： 多频带和小尺寸。 为了实现在越来越小的天线空间里多模的要求， 采用分形 天线是一种非常理想的选择。 但是分形天线也有弊端， 由于造型复杂传统的制造工艺 很难制造出成品率高的分形天线。 针对相关技术中分形天线成品率低的问题， 目前尚未提出有效的解决方案。 发明内容 针对相关技术中分形天线成品率低的问题，本发明提供了一种 LDS天线及其制造 方法、 装置， 用以解决上述技术问题。 根据本发明的一个方面， 本发明提供了一种天线制造方法， 其中， 该方法包括： 通过激光直接成型 LDS技术， 将分形天线形成于终端外壳。 优选地， 通过所述 LDS技术， 将分形天线形成于终端外壳， 包括： 利用计算机按 照导电图形的轨迹， 控制激光的运动； 将激光投射到模塑成型的终端外壳上， 活化出 所述分形天线的电路图案。 优选地，所述分形天线的电路图案包括以下方案至少之一: Hilbert曲线、 Minkowski 分形环曲线、 Koch曲线。 优选地， 所述终端外壳上的分形天线， 不作整体喷漆处理。 优选地， 所述分形天线通过微带线与终端主板的天线端口相连。 根据本发明的另一方面， 本发明还提供了一种天线制造装置， 其中， 该装置包括: 天线制造模块， 设置为通过激光直接成型 LDS技术， 将分形天线形成于终端外壳。 优选地， 所述天线制造模块， 还设置为利用计算机按照导电图形的轨迹， 控制激 光的运动； 将激光投射到模塑成型的终端外壳上， 活化出所述分形天线的电路图案。 优选地， 所述终端外壳上的分形天线， 不作整体喷漆处理。 优选地， 所述分形天线通过微带线与终端主板的天线端口相连。 根据本发明的另一方面， 本发明还提供了一种 LDS天线， 其中， 所述 LDS天线 通过激光直接成型 LDS技术， 形成于终端外壳， 不作整体喷漆处理； 所述 LDS天线 通过微带线与终端主板的天线端口相连。 通过本发明， 采用 LDS技术制造分形天线， 两者结合， 解决了相关技术中分形天 线成品率低的问题， 使得分形天线量产成为可能。本发明的 LDS天线既能实现小型化 又能支持多频段而且具备天线的生产技术达到要求的特点。 上述说明仅是本发明技术方案的概述， 为了能够更清楚了解本发明的技术手段， 而可依照说明书的内容予以实施， 并且为了让本发明的上述和其它目的、 特征和优点 能够更明显易懂， 以下特举本发明的具体实施方式。 附图说明 图 1 是根据本发明实施例的天线制造方法的流程图； 图 2 是根据本发明实施例的 Hilbert曲线生成过程示意图； 图 3 是根据本发明实施例的手机后壳表面的 Hilbert曲线分形天线的第一示意图； 图 4 是根据本发明实施例的手机后壳表面的 Hilbert曲线分形天线的第二示意图； 图 5 是根据本发明实施例的天线与主板连接方式示意图； 图 6 是根据本发明实施例的天线制造装置的结构框图。 具体实施方式 为了解决现有技术中分形天线成品率低的问题，本发明提供了一种 LDS天线及其 制造方法、 装置， 以下结合附图以及实施例， 对本发明进行进一步详细说明。 应当理 解， 此处所描述的具体实施例仅仅用以解释本发明， 并不限定本发明。 目前各种多功能高要求的无线终端广泛使用， 对无线终端的天线的频段和形状要 求变得越来越高， 尤其现在支持的频段超过两位数， 而吸引用户的造型留给天线的设 计空间却越来越小， 这就需要天线能实现既小型化又能支持多频段而且具备天线的生 产技术达到要求的特点， 而 LDS (Laser-Direct-Structuring, 激光直接成型技术） 工艺 分形天线正是具备了这两个特点。 下面通过实施例对本发明技术方案进行介绍。 本实施例提供了一种天线制造方法， 图 1是根据本发明实施例的天线制造方法的 流程图， 如图 1所示， 该方法包括以下步骤： 步骤 S102, 通过 LDS技术， 将分形天线形成于终端外壳。 对于无线终端来说， LDS 天线技术就是激光直接成型技术， 利用计算机按照导 电图形的轨迹控制激光的运动， 将激光投照到模塑成型的三维塑料器件上， 在几秒钟 的时间内， 活化出电路图案。 简单的说（对于手机天线设计与生产）， 在成型的塑料支 架上， 利用激光镭射技术直接在支架上化镀形成金属天线 pattem。 这样一种技术， 可 以直接将天线镭射在终端的外壳 （例如手机外壳） 上。 基于上述介绍，本实施例提供了一种优选实施方式， 即在本实施例的操作过程中， 通过所述 LDS技术， 将分形天线形成于终端外壳， 包括： 利用计算机按照导电图形的 轨迹， 控制激光的运动； 将激光投射到模塑成型的终端外壳上， 活化出所述分形天线 的电路图案。 在本实施例中， 终端外壳上的分形天线， 不作整体喷漆处理。 分形天线通过微带 线与终端主板的天线端口相连。 分形天线的电路图案可以包括以下方案至少之一： Hilbert曲线、 Minkowski分形环曲线、 Koch曲线。 实际应用于天线小型化设计的例子是 Hilbert分形天线。由于是由多节线段组成的， Hilbert曲线是一种比传统的曲线能够覆盖更多的空间的分形曲线。 图 2是根据本发明 实施例的 Hilbert曲线生成过程示意图， 如图 2所示， 它几乎可以看作一系列的点来填 满整个的正方形表面（本身仍保持是条曲线）。利用这种特性， 许多天线的尺寸都可以 大大减小。 分形曲线具有非常对称的特性， 这种复杂但是有规律的花纹完全可以作为 观赏性的花纹刻印在终端后壳上。 图 3是根据本发明实施例的手机后壳表面的 Hilbert曲线分形天线的第一示意图， 图 4是根据本发明实施例的手机后壳表面的 Hilbert曲线分形天线的第二示意图，如图 3和图 4所示， Hilbert曲线分形天线可以制作为不同的形状。 终端天线也发展了多种工艺和天线形式， LDS很好解决小空间天线对边角空间的 充分利用， LDS精确的控制了天线的走线， 使得之前很多无法在手机这种小空间上实 现的天线形式得以实现。 目前终端越来越薄， 很多天线为了争取最大净空高度， 直接把 LDS做在终端后壳 上， 但是天线需要喷漆掩盖， 由于工艺问题， 完美掩盖的成品率很低。 所以采用分形 天线直接形成于后壳不进行喷漆掩盖， 提高成品率。 本发明的技术方案是主要利用现有的 LDS工艺和分形天线结合，形成出成品率高 可以实现量产的终端天线。分形天线通过 LDS工艺生产制造。分形天线直接形成于后 壳， 形成可观赏的花纹。 分形天线表面不作整体喷漆处理， 可以是直接裸露， 也可以 是经过处理后凸显天线形状的工艺。 分形天线包括多种曲线形成的分形天线。 下面根据附图和实施例对本发明作进一步详细说明。 分形天线形成的方案可以由多种途径得到， 比如用 Hilbert曲线得到分形天线， 比 如用 Minkowski分形环曲线得到的分形天线， 或者通过 Koch曲线得到分形天线等等。 有规律的分形天线通过 LDS工艺形成于终端后壳，同时有天线的功能和后壳花纹的作 用。 天线与主板连接的方式是用微带线与主板的天线端口相连， 如图 5所示的天线与 主板连接方式示意图， 网格部分即微带线与主板的天线端口相连部分。 对应于上述实施例介绍的天线制造方法， 本实施例提供了一种天线制造制作， 该 装置用以实现上述实施例。 图 6是根据本发明实施例的天线制造装置的结构框图， 如 图 6所示， 该装置包括： 天线制造模块， 设置为通过 LDS技术， 将分形天线形成于终 端外壳。 上述天线制造模块，还设置为利用计算机按照导电图形的轨迹，控制激光的运动； 将激光投射到模塑成型的终端外壳上， 活化出所述分形天线的电路图案。 在本实施例中， 终端外壳上的分形天线， 不作整体喷漆处理。 分形天线通过微带 线与终端主板的天线端口相连。分形天线的电路图案可以是以下方案至少之一： Hilbert 曲线、 Minkowski分形环曲线、 Koch曲线。 前面已经进行了介绍， 在此不再赘述。 对应于上述实施例介绍的天线制造方法及装置， 本实施例提供了一种 LDS天线， 该 LDS天线通过 LDS技术， 形成于终端外壳， 不作整体喷漆处理； 该 LDS天线通过 微带线与终端主板的天线端口相连。 本发明涉及一种在终端上使用 LDS工艺的分形天线， 以及其制造方法、 装置。 通 过本发明， 采用 LDS技术制造分形天线， 两者结合， 解决了相关技术中分形天线成品 率低的问题， 使得分形天线量产成为可能。本发明的 LDS天线既能实现小型化又能支 持多频段而且具备天线的生产技术达到要求的特点。 尽管为示例目的， 已经公开了本发明的优选实施例， 本领域的技术人员将意识到 各种改进、 增加和取代也是可能的， 因此， 本发明的范围应当不限于上述实施例。 工业实用性 如上所述， 本发明实施例及优选实施方式中的 LDS技术制造分形天线， 使得分形 天线量产成为可能， 既能实现小型化又能支持多频段而且具备天线的生产技术达到要 求的特点。 TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to an LDS antenna, a method for manufacturing the same, and an apparatus. BACKGROUND OF THE INVENTION In the prior art, since a fractal antenna has self-similar characteristics and spatial filling property, it can be well applied to mobile terminals with increasingly narrow antenna spaces. Fractal antennas exhibit two distinct advantages over traditional antennas: multi-band and small size. In order to achieve multi-mode requirements in smaller and smaller antenna spaces, the use of fractal antennas is an ideal choice. However, fractal antennas also have drawbacks, and it is difficult to manufacture a fractal antenna with high yield due to the complicated manufacturing process. In view of the low yield of the fractal antenna in the related art, an effective solution has not been proposed yet. SUMMARY OF THE INVENTION In view of the problem of low yield of a fractal antenna in the related art, the present invention provides an LDS antenna, a manufacturing method thereof, and an apparatus for solving the above technical problem. According to an aspect of the present invention, there is provided an antenna manufacturing method, wherein the method comprises: forming a fractal antenna in a terminal housing by laser direct structuring LDS technology. Preferably, the LDS technology is used to form the fractal antenna in the terminal housing, including: controlling the movement of the laser according to the trajectory of the conductive pattern by using a computer; projecting the laser onto the molded terminal housing to activate the fractal antenna Circuit pattern. Preferably, the circuit pattern of the fractal antenna comprises at least one of the following: a Hilbert curve, a Minkowski fractal ring curve, a Koch curve. Preferably, the fractal antenna on the terminal housing is not painted as a whole. Preferably, the fractal antenna is connected to an antenna port of the terminal motherboard through a microstrip line. According to another aspect of the present invention, there is also provided an antenna manufacturing apparatus, wherein the apparatus comprises: an antenna manufacturing module configured to form a fractal antenna in a terminal housing by laser direct structuring LDS technology. Preferably, the antenna manufacturing module is further configured to control the movement of the laser according to the trajectory of the conductive pattern by using a computer; projecting the laser onto the molded terminal housing to activate the circuit pattern of the fractal antenna. Preferably, the fractal antenna on the terminal housing is not painted as a whole. Preferably, the fractal antenna is connected to an antenna port of the terminal motherboard through a microstrip line. According to another aspect of the present invention, the present invention further provides an LDS antenna, wherein the LDS antenna is formed in a terminal housing by laser direct forming LDS technology, and is not subjected to an overall painting process; the LDS antenna passes through a microstrip line and The antenna ports of the terminal board are connected. Through the invention, the LDS technology is used to manufacture the fractal antenna, and the combination of the two solves the problem that the fractal antenna has low yield in the related art, and the mass production of the fractal antenna becomes possible. The LDS antenna of the invention can not only achieve miniaturization but also support multiple frequency bands and has the characteristics that the antenna production technology meets the requirements. The above description is only an overview of the technical solutions of the present invention, and the technical means of the present invention can be more clearly understood, and can be implemented in accordance with the contents of the specification, and the above and other objects, features and advantages of the present invention can be more clearly understood. Specific embodiments of the invention are set forth below. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flow chart of a method of fabricating an antenna according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a process for generating a Hilbert curve according to an embodiment of the present invention; FIG. 3 is a Hilter curve of a surface of a back casing of a mobile phone according to an embodiment of the present invention; FIG. 4 is a second schematic diagram of a Hilbert curve fractal antenna on a surface of a rear casing of a mobile phone according to an embodiment of the present invention; FIG. 5 is a schematic diagram of a connection manner between an antenna and a motherboard according to an embodiment of the present invention; A block diagram of a structure of an antenna manufacturing apparatus according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to solve the problem of low yield of a fractal antenna in the prior art, the present invention provides an LDS antenna, a method for fabricating the same, and an apparatus. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. At present, various versatile and demanding wireless terminals are widely used, and the frequency band and shape requirements of the antennas of the wireless terminals are becoming higher and higher, especially the frequency bands currently supported exceed two digits, and the design attracting users is reserved for the antenna design. The space is getting smaller and smaller, which requires the antenna to achieve the characteristics of miniaturization and support for multi-band and antenna production technology, while LDS (Laser-Direct-Structuring) process fractal antenna is It is equipped with these two characteristics. The technical solution of the present invention will be described below by way of examples. The embodiment provides a method for manufacturing an antenna. FIG. 1 is a flowchart of a method for manufacturing an antenna according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps: Step S102: forming a fractal antenna by using LDS technology In the terminal housing. For wireless terminals, the LDS antenna technology is laser direct structuring technology, which uses a computer to control the movement of the laser according to the trajectory of the conductive pattern, and projects the laser onto the molded three-dimensional plastic device, which is activated in a few seconds. Out of the circuit pattern. Simply put (for the design and production of mobile phone antennas), on the molded plastic support, the laser antenna technology is used to form a metal antenna patch directly on the support. Such a technique can directly laser the antenna on the outer casing of the terminal (such as a mobile phone case). Based on the above description, the present embodiment provides a preferred embodiment, that is, in the operation of the embodiment, the fractal antenna is formed on the terminal casing by using the LDS technology, and includes: controlling, according to the trajectory of the conductive pattern, by using a computer The movement of the laser; projecting the laser onto the molded terminal housing to activate the circuit pattern of the fractal antenna. In this embodiment, the fractal antenna on the terminal housing is not painted as a whole. The fractal antenna is connected to the antenna port of the terminal board through the microstrip line. The circuit pattern of the fractal antenna may include at least one of the following: a Hilbert curve, a Minkowski fractal ring curve, a Koch curve. An example of a practical application for antenna miniaturization is the Hilbert fractal antenna. Since it is composed of multiple sections, the Hilbert curve is a fractal curve that covers more space than a traditional curve. 2 is a schematic diagram of a Hilbert curve generation process according to an embodiment of the present invention. As shown in FIG. 2, it can be regarded as a series of points to fill the entire square surface (which itself remains a curve). With this feature, the size of many antennas can be greatly reduced. The fractal curve has a very symmetrical characteristic, and this complex but regular pattern can be engraved on the terminal back shell as an ornamental pattern. 3 is a first schematic diagram of a Hilbert curve fractal antenna on the surface of a rear casing of a mobile phone according to an embodiment of the present invention, and FIG. 4 is a second schematic diagram of a Hilbert curve fractal antenna on the surface of a rear casing of a mobile phone according to an embodiment of the present invention, as shown in FIG. 3 and FIG. As shown in Figure 4, the Hilbert curve fractal antenna can be fabricated in different shapes. The terminal antenna has also developed a variety of processes and antenna forms. The LDS is well suited to the full utilization of the corner space of the small space antenna. The LDS accurately controls the routing of the antenna, so that many of the previous ones cannot be implemented in such a small space as the mobile phone. The antenna form is implemented. At present, the terminals are getting thinner and thinner. Many antennas directly use the LDS on the rear case of the terminal in order to obtain the maximum headroom, but the antenna needs to be painted and masked. Due to the process problem, the perfect cover yield is very low. Therefore, the fractal antenna is directly formed on the rear case without performing paint masking, thereby improving the yield. The technical solution of the present invention mainly utilizes the existing LDS process and the fractal antenna to form a terminal antenna with high yield and mass production. The fractal antenna is manufactured by the LDS process. The fractal antenna is formed directly on the rear case to form an ornamental pattern. The surface of the fractal antenna is not painted as a whole, and may be directly exposed or may be a process of highlighting the shape of the antenna after being processed. The fractal antenna includes a plurality of fractal antennas formed by curves. The invention will now be described in further detail with reference to the drawings and embodiments. The scheme of forming a fractal antenna can be obtained by various methods, such as obtaining a fractal antenna by using a Hilbert curve, such as a fractal antenna obtained by using a Minkowski fractal loop curve, or obtaining a fractal antenna by a Koch curve, and the like. The regular fractal antenna is formed in the rear case of the terminal by the LDS process, and has the function of the antenna and the function of the back shell pattern. The way to connect the antenna to the motherboard is to connect the antenna port of the motherboard with the microstrip line. As shown in Figure 5, the antenna is connected to the motherboard. The grid part is the part of the microstrip line connected to the antenna port of the motherboard. Corresponding to the antenna manufacturing method introduced in the above embodiment, this embodiment provides an antenna manufacturing process, which is used to implement the above embodiment. 6 is a structural block diagram of an antenna manufacturing apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes: an antenna manufacturing module configured to form a fractal antenna in a terminal housing by an LDS technique. The antenna manufacturing module is further configured to control the movement of the laser according to the trajectory of the conductive pattern by the computer; project the laser onto the molded terminal housing to activate the circuit pattern of the fractal antenna. In this embodiment, the fractal antenna on the terminal housing is not painted as a whole. The fractal antenna is connected to the antenna port of the terminal board through the microstrip line. The circuit pattern of the fractal antenna may be at least one of the following: a Hilbert curve, a Minkowski fractal ring curve, a Koch curve. It has already been introduced in the previous section and will not be described here. Corresponding to the antenna manufacturing method and device introduced in the foregoing embodiment, the embodiment provides an LDS antenna, which is formed in the terminal casing by the LDS technology, and is not used for overall painting processing; the LDS antenna passes through the microstrip line and the terminal board The antenna ports are connected. The present invention relates to a fractal antenna using an LDS process on a terminal, and a method and apparatus for manufacturing the same. Through the invention, the LDS technology is used to manufacture the fractal antenna, and the combination of the two solves the problem that the fractal antenna has low yield in the related art, and the mass production of the fractal antenna becomes possible. The LDS antenna of the invention can not only achieve miniaturization but also support multiple frequency bands and has the characteristics that the antenna production technology meets the requirements. While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above. INDUSTRIAL APPLICABILITY As described above, the LDS technology in the embodiments and the preferred embodiments of the present invention manufactures a fractal antenna, which makes it possible to mass-produce a fractal antenna, which can achieve miniaturization and support multiple frequency bands and has an antenna production technology that meets the requirements. Features.

Claims

权 利 要 求 书 、 一种天线制造方法， 所述方法包括： Claims, an antenna manufacturing method, the method comprising:
通过激光直接成型 LDS技术， 将分形天线形成于终端外壳。 、 如权利要求 1所述的方法， 其中， 通过所述 LDS技术， 将分形天线形成于终端 外壳， 包括： 利用计算机按照导电图形的轨迹， 控制激光的运动；  The fractal antenna is formed in the terminal housing by laser direct molding LDS technology. The method according to claim 1, wherein the forming the fractal antenna in the terminal housing by using the LDS technology comprises: controlling a movement of the laser according to a trajectory of the conductive pattern by using a computer;
将激光投射到模塑成型的终端外壳上， 活化出所述分形天线的电路图案。 、 如权利要求 2所述的方法， 其中， 所述分形天线的电路图案包括以下方案至少 之一： Hilbert曲线、 Minkowski分形环曲线、 Koch曲线。 、 如权利要求 1至 3中任一项所述的方法， 其中， 所述终端外壳上的分形天线， 不作整体喷漆处理。 、 如权利要求 1至 3中任一项所述的方法， 其中， 所述分形天线通过微带线与终 端主板的天线端口相连。 、 一种天线制造装置， 所述装置包括：  A laser is projected onto the molded terminal housing to activate the circuit pattern of the fractal antenna. The method according to claim 2, wherein the circuit pattern of the fractal antenna comprises at least one of the following: a Hilbert curve, a Minkowski fractal ring curve, and a Koch curve. The method according to any one of claims 1 to 3, wherein the fractal antenna on the terminal housing is not subjected to an overall painting process. The method according to any one of claims 1 to 3, wherein the fractal antenna is connected to an antenna port of the terminal main board through a microstrip line. An antenna manufacturing apparatus, the apparatus comprising:
天线制造模块， 设置为通过激光直接成型 LDS技术，将分形天线形成于终 端外壳。 、 如权利要求 6所述的装置， 其中， 所述天线制造模块， 还设置为利用计算机按照导电图形的轨迹， 控制激光 的运动； 将激光投射到模塑成型的终端外壳上， 活化出所述分形天线的电路图 案。 、 如权利要求 6或 7所述的装置， 其中， 所述终端外壳上的分形天线， 不作整体 喷漆处理。 、 如权利要求 6或 7所述的装置， 其中， 所述分形天线通过微带线与终端主板的 天线端口相连。 0、 一种 LDS天线， 所述 LDS天线通过激光直接成型 LDS技术， 形成于终端外壳， 不作整体 喷漆处理； The antenna manufacturing module is configured to form a fractal antenna in the terminal housing by laser direct forming LDS technology. The apparatus according to claim 6, wherein the antenna manufacturing module is further configured to control a movement of the laser according to a trajectory of the conductive pattern by using a computer; projecting the laser onto the molded terminal housing to activate the The circuit pattern of the fractal antenna. The device according to claim 6 or 7, wherein the fractal antenna on the terminal housing is not subjected to an integral painting process. The device according to claim 6 or 7, wherein the fractal antenna is connected to an antenna port of the terminal motherboard through a microstrip line. 0, an LDS antenna, The LDS antenna is formed by laser direct forming LDS technology, formed in the terminal casing, and is not subjected to overall painting treatment;
所述 LDS天线通过微带线与终端主板的天线端口相连。  The LDS antenna is connected to an antenna port of the terminal motherboard through a microstrip line.
PCT/CN2014/084949 2014-06-23 2014-08-21 Lds antenna and manufacturing method and apparatus therefor WO2015196550A1 (en)

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CN109291560B (en) * 2018-10-18 2022-04-12 广州华夏职业学院 Glass shell structure and preparation method thereof
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CN101682107A (en) * 2007-05-10 2010-03-24 高级汽车天线公司 Vehicle mirror antenna assembly
CN103474786A (en) * 2013-10-15 2013-12-25 深圳市中兴移动通信有限公司 Mobile terminal antenna and mobile terminal
CN103756472A (en) * 2013-12-18 2014-04-30 东莞劲胜精密组件股份有限公司 Laser-activable LDS (Laser Direct Structuring) natural coating

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101682107A (en) * 2007-05-10 2010-03-24 高级汽车天线公司 Vehicle mirror antenna assembly
CN103474786A (en) * 2013-10-15 2013-12-25 深圳市中兴移动通信有限公司 Mobile terminal antenna and mobile terminal
CN103756472A (en) * 2013-12-18 2014-04-30 东莞劲胜精密组件股份有限公司 Laser-activable LDS (Laser Direct Structuring) natural coating

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