CN107425260B - Linear metal antenna - Google Patents
Linear metal antenna Download PDFInfo
- Publication number
- CN107425260B CN107425260B CN201710250141.2A CN201710250141A CN107425260B CN 107425260 B CN107425260 B CN 107425260B CN 201710250141 A CN201710250141 A CN 201710250141A CN 107425260 B CN107425260 B CN 107425260B
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- metal
- wire
- metal wire
- insulating
- antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Abstract
The invention provides a linear metal antenna, comprising: the cable comprises a cable connector, a metal wire and an insulating connecting part, wherein the metal wire is electrically connected with a cable core wire at the position of the cable connector, one side of the insulating connecting part is fixedly connected with the metal wire, and the other side of the insulating connecting part is detachably connected with the cable connector and is used for insulating the metal wire and the cable connector and strengthening the holding force between the metal wire and the cable connector. The insulating connecting part is an annular gasket structure wound at the connecting part of the metal wire and the cable core wire. The invention solves the insulation problem between the linear metal and the coaxial cable connector by adding the insulation connecting part, and simultaneously increases the drawing force between the linear metal and the terminal of the coaxial cable connector.
Description
Technical Field
The invention relates to the technical field of communication antenna design, in particular to a linear metal antenna connected with a PCB (printed circuit board).
Background
In the communications electronics industry, methods and processes for coupling a linear metal (e.g., nitinol) to a PCB via a coaxial cable coupler to perform antenna functions.
The existing wire-type metal antenna is generally connected to the PCB board by soldering or by a customized connector. When the traditional welding antenna is maintained and replaced, the traditional welding antenna is difficult to disassemble and reinstall, and the traditional welding antenna is easy to cause product damage.
The existing linear metal antenna designed by the connection of the metal antenna and the PCB board generally adopts the method that the coaxial cable is firstly subjected to wire dialing, a part of shielding layer is removed, and a core wire is exposed to be used as the antenna. And then connected with the connector. The disadvantage is that the wire needs to be pulled, the labor is increased, and the coaxial cable is expensive due to the complex process. And the coaxial cable is not rigid and is easy to bend, and the performance of the bent antenna is affected.
The existing linear metal antenna does not have a production process which is simple, feasible and easy to assemble and disassemble.
Disclosure of Invention
The invention aims to provide a linear metal antenna to solve the problems of inconvenient connection process, difficult maintenance and replacement, high processing cost caused by non-universal connectors and easy damage of products when the conventional metal antenna is connected with a PCB (printed circuit board).
In order to achieve the above object, the present invention provides a linear metal antenna, including:
the cable comprises a cable connector, a metal wire and an insulating connecting part, wherein the metal wire is electrically connected with a cable core wire at the position of the cable connector, one side of the insulating connecting part is fixedly connected with the metal wire, and the other side of the insulating connecting part is connected with the cable connector and is used for insulating the metal wire and the cable connector and strengthening the holding force between the metal wire and the cable connector.
Preferably, the insulating connecting portion is an annular gasket structure wound around a joint of the metal wire and the cable core.
Preferably, the metal wire is any one of a conductive metal wire, an alloy wire or a metal wire made of a compound containing a conductive function of a metal.
Preferably, the cross section of the metal wire is circular, rectangular, oval or any regular polygon.
Preferably, the metal wire is a straight line or a curve with any one of predetermined shapes.
Preferably, the insulating connecting part is connected to the metal wire in an injection molding manner by means of over-molding, or is connected to the metal wire in an assembling manner.
Preferably, the position where the insulating connection part is connected with the metal wire is as follows: the roughness of the contact area of the metal wire and the insulating connection part is increased in a pre-polishing mode; or the contact area of the insulating connecting part and the metal wire is pretreated by laser or chemical reagent to increase the roughness of the contact area; or the contact areas of the insulating connecting part and the metal wire are respectively formed into mutually matched shapes in a stamping or preforming mode so as to increase the connection stability of the contact areas.
Preferably, the metal wire is further connected to a metal radiator, and the metal radiator serves as a radiation portion of the antenna.
Preferably, an insulating carrier is further disposed on the metal wire, one or more metal radiators are disposed on the insulating carrier, the metal radiators are electrically connected to the metal wire, and the metal radiators serve as a radiation portion of the antenna.
The linear metal antenna has the following beneficial effects:
(1) the detachability of the linear antenna after installation is realized. When the traditional welding antenna is maintained and replaced, the traditional welding antenna is difficult to disassemble and reinstall, and the traditional welding antenna is easy to cause product damage. By adopting the antenna structure, the antenna structure is simple and easy to assemble and disassemble, and does not cause damage to related products;
(2) the arrangement of the insulating connecting part realizes the universality of antenna connection, and the development period and the cost of the products can be reduced because the existing cable connectors such as coaxial cable connectors have more selectable varieties.
Drawings
Fig. 1 is a schematic diagram of a partial connection structure of a linear metal antenna according to a preferred embodiment;
fig. 2 is a schematic diagram of an overall connection structure of a linear metal antenna according to a preferred embodiment;
fig. 3 is a cross-sectional view of a wire type metal antenna provided in a preferred embodiment;
fig. 4 is a schematic overall structure diagram of a linear metal antenna provided in another preferred embodiment;
fig. 5 is a schematic diagram of an overall structure of a linear metal antenna according to a further preferred embodiment;
fig. 6 is a waveform diagram of three different wire length antennas.
Detailed Description
While the embodiments of the present invention will be described and illustrated in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking specific embodiments as examples with reference to the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
As shown in fig. 1, 2 and 3, the present embodiment provides a linear metal antenna, including:
the cable connector comprises a cable connector 1, an insulating connecting part 2 and a metal wire 3, wherein the metal wire 3 is electrically connected with a cable core 4 at the position of the cable connector 1, one side of the insulating connecting part 2 is fixedly connected with the metal wire 3, and the other side of the insulating connecting part is connected with the cable connector 1 and is used for insulating the metal wire 3 from the cable connector 1 and strengthening the holding force between the metal wire 3 and the cable connector 1. By adding the insulating connecting part between the cable connector and the metal wire, when the metal wire is connected with the core wire of the cable at the position of the cable connector, the insulation between the linear metal wire and the cable connector is realized, and the drawing force between the exposed linear metal wire and the cable connector terminal is increased. The cable connector can directly adopt the existing standard cable connector, when the linear metal antenna needs to be connected with different types of cables for signal feeding, the standard cable connector corresponding to the cable is directly utilized, the cable connector is connected with the insulation connecting part, and the purpose of enhancing the drawing force between the metal wire and the cable connector terminal is achieved.
In this embodiment, the cable connector is preferably a coaxial cable connector, and the cable core is a core of the coaxial cable. Of course, those skilled in the art should understand that the cable connector can be a cable connector corresponding to different cables corresponding to the antenna according to different kinds of cables, and is not limited to a coaxial cable connector, but also can be a customized linear connector.
Referring to fig. 1, 2 and 3 again, the insulating connection portion in this embodiment is a ring-shaped pad structure wound around the connection portion of the metal wire 3 and the cable core 4. The annular gasket is provided with a connecting structure which can be detachably connected with the cable connector, so that the cable connector can be conveniently replaced, and the problems that the metal wire and the connector cannot be replaced, the universality is poor and the maintenance is inconvenient due to the fact that the existing welding modes and the like are used for connecting the metal wire and the connector are solved.
The metal wire 3 in the present embodiment may be provided as any one of a conductive metal wire, an alloy wire, a metal wire made of a compound having a conductive function of a metal, or a non-conductive wire having a conductive layer, as required. For example, the metal wire may be a copper wire, a steel wire, a nitinol wire, or the like. Or other compound materials or components with the conductive function of metal through special treatment, such as plating a layer of metal conductive wire on the plastic material.
Further, the cross section of the metal wire 3 provided by this embodiment is circular, and in other preferred embodiments, the cross section of the metal wire may be set to be any one of a rectangle, an ellipse or a square, a regular hexagon, a regular octagon, and the like. Further, the area of the cross section of the metal wire may be set to vary with the wire length (axial direction), that is, different thicknesses at different positions, as needed, or may be a linear metal having a constant cross section area, and the cross section areas at various positions are the same. The particular implementation of the cross-section of the metal wire can be freely chosen by the skilled person as desired.
Referring to fig. 1 and fig. 2 again, in the present embodiment, the metal wire 3 is a linear structure, in other preferred embodiments, the metal wire may be set to be a curve with any preset shape, and the curved shape and specific form of the metal wire may be preset according to the requirement of signal radiation.
The insulating connection 2 in this embodiment is injection-molded onto the metal wire 3 by over-molding. This kind of connected mode can further improve the firm degree between metal wire 3 and the insulating connecting portion 2, and because insulating connecting portion adopt insulating material to make, like preparation such as plastics, resin material, the mode of overmolding injection moulding is very fit for setting up insulating connecting portion 2, and processing is simple, convenient, and can improve the connection degree of stability between the two. Certainly, also can connect insulating connecting portion between the two through the mode of equipment on the metal wire, for example carry out the joint through setting up the joint portion of mutually supporting on both contact surfaces and fix, bond fixedly through locating the viscose layer on both contact surfaces, it is fixed to carry out screw thread swivelling joint through the screw thread that the surface matches each other, or connect fixedly through interference fit between the two. The present invention is not limited to the specific assembly method, and is included in the scope of the present invention, so long as the connection and fixation between the two can be achieved.
In a preferred embodiment, the position where the insulated connecting part 2 is connected with the metal wire 3 can further improve the holding force between the two by the following methods: the roughness of the contact area of the metal wire and the insulating connecting part is increased in a pre-polishing mode, namely, the contact area of the metal wire is polished first, and then the insulating connecting part is installed or injection-molded, so that the connecting strength of the metal wire and the insulating connecting part is improved; or the contact area of the insulated connecting part and the metal wire is pretreated by laser or chemical reagent to increase the roughness of the contact area, and then the insulated connecting part is installed or injected on the metal wire to improve the connecting strength of the insulated connecting part and the metal wire; or the contact areas of the insulating connecting part and the metal wire are respectively formed into mutually matched shapes in a stamping or preforming mode, and then the insulating connecting part is installed or injection-molded on the metal wire so as to increase the connection stability of the contact areas.
Referring to fig. 4, in another preferred embodiment of the present invention, the metal wire 3 is further connected to a metal radiator 5, and the metal radiator 5 is used as a radiating portion of the antenna. The metal radiator 5 may be riveted, welded or in any other way connected to the metal wire 3, and the radiation performance of the antenna may be further improved by providing the metal radiator 5. And the number and specific shape of the metal radiators 5 can be set to any suitable structure as required, so as to improve the performance, expansion and application of the linear antenna.
Referring to fig. 5, in another preferred embodiment of the present invention, the metal wire 3 is further provided with an insulating carrier 6, the insulating carrier 6 in this embodiment is an overmolded plastic part, and one or more metal radiators 7 are provided on the plastic part, and the metal radiators 7 are used as a radiation part of the antenna. Wherein the metal radiator 7 is electrically connected to the metal line 3. At this moment, the plastic part is used as a carrier of the radiator of the antenna, the metal radiator is arranged on the plastic part, the radiation capability of the antenna is effectively expanded, and the metal radiators with different shapes are arranged on the carrier according to requirements, so that the plastic part has an important effect on improving the overall performance of the antenna. Of course, the insulating carrier 6 is not limited to a plastic member, and may be any insulating carrier that can be fixedly connected to a metal wire and is suitable for carrying a metal radiator, such as a resin material, a film, ceramic, or glass, as required.
Of course, in some preferred embodiments, the metal radiator 5 directly connected to the metal wire and the metal radiator 7 disposed on the carrier may be simultaneously disposed to be connected to the metal wire as needed to improve the antenna performance. The number of the metal radiators, the number of the carriers and the implementation form are not limited by fig. 5 of the present invention.
As shown in fig. 6, the resonant frequency and the return loss of the antenna at different lengths are shown, and specifically, the waveform diagrams of the antenna at three different line lengths are shown in fig. 6.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to make modifications or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A wire-type metal antenna, comprising:
the cable connector comprises a cable connector, a metal wire and an insulating connecting part, wherein the metal wire is electrically connected with a cable core wire at the position of the cable connector, one side of the insulating connecting part is fixedly connected with the metal wire, and the other side of the insulating connecting part is connected with the cable connector and is used for insulating the metal wire and the cable connector and reinforcing the holding force between the metal wire and the cable connector;
the antenna is characterized in that an insulating carrier is further arranged on the metal wire, one or more metal radiating bodies are arranged on the insulating carrier, the metal radiating bodies are electrically connected with the metal wire, and the metal radiating bodies serve as a radiating part of the antenna.
2. The wire type metal antenna according to claim 1, wherein the insulating connection portion is a ring-shaped spacer structure wound around a connection portion of the metal wire and the cable core.
3. The line type metal antenna according to claim 1, wherein the metal line is any one of a conductive metal line, an alloy line, or a metal line made of a compound having a conductive function of a metal.
4. A wire-type metal antenna according to claim 1 or 3, wherein the cross-section of the metal wire is circular, rectangular, elliptical or any regular polygon.
5. A wire type metal antenna according to claim 1 or 3, wherein the metal wire is a straight line or a curved line having any one of predetermined shapes.
6. A wire-type metal antenna according to claim 1, wherein the insulating connection part is injection-molded on the metal wire by means of over-molding, or is connected to the metal wire by means of assembling.
7. A wire-type metal antenna according to claim 6, wherein the insulating connection portion is connected to the metal wire at a position: the roughness of the contact area of the metal wire and the insulating connection part is increased in a pre-polishing mode; or the contact area of the insulating connecting part and the metal wire is pretreated by laser or chemical reagent to increase the roughness of the contact area; or the contact areas of the insulating connecting part and the metal wire are respectively formed into mutually matched shapes in a stamping or preforming mode so as to increase the connection stability of the contact areas.
8. The wire type metal antenna of claim 1, wherein the metal wire is further connected to a metal radiator, the metal radiator being a radiation portion of the antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250141.2A CN107425260B (en) | 2017-04-17 | 2017-04-17 | Linear metal antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250141.2A CN107425260B (en) | 2017-04-17 | 2017-04-17 | Linear metal antenna |
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| Publication Number | Publication Date |
|---|---|
| CN107425260A CN107425260A (en) | 2017-12-01 |
| CN107425260B true CN107425260B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710250141.2A Active CN107425260B (en) | 2017-04-17 | 2017-04-17 | Linear metal antenna |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4281430B2 (en) * | 2003-06-26 | 2009-06-17 | ミツミ電機株式会社 | Antenna device |
| JP2005295398A (en) * | 2004-04-02 | 2005-10-20 | Mitsumi Electric Co Ltd | Antenna device and anti-noise method of antenna |
| GB2430077B (en) * | 2005-09-08 | 2008-02-13 | Motorola Inc | Antenna arrangement having a coupling for use with a wireless modem card and a combination of the arrangement and card |
| CN202363577U (en) * | 2011-12-07 | 2012-08-01 | 宝鸡烽火诺信科技有限公司 | Vehicle-mounted wideband whip antenna |
| CN203589202U (en) * | 2013-07-06 | 2014-05-07 | 智象科技股份有限公司 | An improved-type dipolar antenna structure |
| CN104577327B (en) * | 2014-12-29 | 2018-02-06 | 陕西烽火电子股份有限公司 | Integrated vehicle antenna-feedback system |
| CN204538163U (en) * | 2014-12-31 | 2015-08-05 | 深圳市大富科技股份有限公司 | Cavity body filter and connector thereof |
| CN205752477U (en) * | 2016-05-06 | 2016-11-30 | 西安艾力特电子实业有限公司 | A kind of afterbody small size tape cable waveguide component |
| CN106532238B (en) * | 2016-12-16 | 2023-08-04 | 广东盛路通信科技股份有限公司 | Indoor edge coverage enhancement ceiling antenna |
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| CN107425260A (en) | 2017-12-01 |
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