KR20160041727A - Antenna radiator structure with linkage between the metal element of device frame and hybrid type antenna - Google Patents

Abstract

The present invention relates to a radiation structure electrically connected between a metal body of a terminal frame and a hybrid bridged antenna. More specifically, the structure has an antenna pattern composed of an in-mold antenna formed at one side of the terminal frame and a plating or print-type antenna formed in an area near the in-mold antenna. A protruding unit is formed at least a part of the in-mold antenna, and the plating or print-type antenna is overlapped on the protruding unit, so the structure is applied to the hybrid bridged antenna where the in-mold antenna and the plating or print-type antenna are bridged. A conductive connection unit is prepared at least one of the in-mold antenna and the plating or print-type antenna, and the connection unit is connected to a metal body prepared on the exterior of a terminal frame. According to the present invention described above, the present invention provides a hybrid bridged antenna which enables easy formation and modification of an antenna pattern, has relatively high yield, simple manufacturing process, excellent tightness, and waterproofing performance compared to antenna patterns composed of LDS or in-mold antenna only. Also, despite the metal frame formed on the exterior of the terminal frame, the present invention can compensate interference on the waves, thereby maintaining or even improving the radiation performance and the reception sensitivity.

Description

[0001] The present invention relates to a radiator structure that is electrically connected between a metallic body of a terminal frame and a different type of cross-linked antenna.

The present invention relates to a radiator structure electrically connected between a metallic body of a terminal frame and a different type of cross-linked antenna. More particularly, the present invention relates to an in-mold antenna formed on one side of a terminal frame, Wherein the protruding portion is provided on at least one region of the in-mold antenna, and the plating or printed antenna is formed to overlap the protruding portion so that the in-mold antenna and the plated or printed The present invention is applied to a cross-linked heterogeneous antenna that is bridged with an antenna, and at least one of the in-mold antenna and the plated / printed antenna is provided with a connecting portion of a conductive material. The connecting portion is connected to a metal body The metal frame of the terminal frame Lt; RTI ID = 0.0 > electrically < / RTI >

Generally, the portable terminal antenna has an antenna built in so that a sense of aesthetics of the mobile phone can be improved and a good communication state can be achieved. Research and development for improving the radiation performance of the antenna while maintaining the built-in type are underway.

Such built-in antennas may include various types of antennas, such as an in-mold type, a laser type, a press assembly type, a printer type, and a pattern fusion type antenna (MPA type) There are advantages and disadvantages according to each antenna type.

In the case of the conventional in-mold antenna, the antenna according to each type has various advantages and disadvantages. In the case of the conventional in-mold antenna, the antenna is installed in a frame used in a portable communication device, And it is easy to form a new antenna pattern on the frame because no pattern is formed on the outermost frame of the frame. However, since the antenna pattern is buried inside the frame, it is closer to the ground than the case where the antenna pattern is formed in the outermost pipe. Therefore, it is difficult to secure excellent performance of the antenna radiator such as reception sensitivity and radiation performance, . That is, the total amount of the antenna patterns can be limited according to the structure of the frame, so that the antenna characteristics are degraded accordingly.

In the case of a plated type antenna or a printing antenna, it is possible to implement an antenna pattern on the external appearance of the terminal, but it is not easy to implement the antenna pattern on the external appearance face. In addition, since the connection from the feeding portion to the point where the antenna pattern of the external appearance starts is realized in a plating form, a separate hole is formed at the portion, so that there is a problem in that it is not easy to ensure tightness.

In the case of a press assembly, the antenna pattern can be implemented on the outer surface and the outermost surface of the terminal. However, since the antenna radiator is formed only in a region where the antenna radiator is not exposed to the outside of the battery cover of the portable communication device, ) Is small and the sensitivity of transmission and reception is limited. That is, the antenna radiator is formed mainly on the upper surface of the FPCB, and is not formed on the side surface not covered by the battery cover, so that there is a limitation in expanding the antenna radiator.

In order to compensate for these disadvantages, a cross-linked antenna radiator has been devised, which is designed to realize excellent antenna performance and waterproof performance according to hermeticity by finishing a feeding part formed with an in-mold antenna by an LDS or a printing type antenna An in-mulled antenna formed at one end of the frame and having a protrusion formed in at least one region thereof, and a printing or plating type antenna which is electrically connected to the protrusion of the in-mold antenna and is electrically connected thereto The antenna radiator was designed to cross the heterogeneous antenna.

However, in order to protect the terminal according to recent trends, or to improve the esthetics and function, at least a part of the outer surface of the terminal frame is finished with a metal component. Such metal components cause destructive interference of radio waves, The radiation performance of the antenna is deteriorated.

The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide an antenna pattern which is easy to form and modify, and which has a relatively high yield compared with an antenna pattern composed of only LDS or an in- And a waterproof performance, it is possible to maintain or improve the radiation performance and the reception sensitivity by compensating for the interference phenomenon of the radio wave despite the metal frame implemented on the outer surface of the terminal frame, And a radiator structure electrically connected between the cross-linked antenna and the heterogeneous cross-linked antenna.

Further, since the connecting portion is interposed between the ground and the metal body of the outer surface of the terminal frame, the gap between the ground and the metal body can be secured as compared with the case where the connecting portion is directly connected to improve the receiving gain. The other purpose is to ensure that it is excellent.

In order to achieve the above object, the present invention provides an antenna structure including an in-mold antenna formed on one side of a terminal frame and an antenna pattern formed of a plated or printed antenna formed in an area adjacent to the in-mold antenna, Wherein the at least one area of the in-mold antenna is provided with a protrusion and the plated or printed antenna is formed so as to overlap the protrusion, thereby applying the in-mold antenna and the plated or printed antenna to the cross- Wherein the connection part is connected to at least one of the metal frame of the terminal frame and the metal frame of the terminal frame, or the metal frame of the terminal frame is connected to the metal frame of the terminal frame. And provides a radiator structure that is electrically connected between the cross-linked antennas.

Preferably, the connecting portion is made of a metal material and its thickness or shape is adjusted so as to have elasticity.

Preferably, the connection portion is fixed to the antenna and is in surface contact with the metal body.

The connection portion is preferably formed integrally with the in-mold antenna.

An in-mold antenna is further formed on the feeding part of the terminal frame, and a printing or plating type antenna is formed on the upper part of the in-mold antenna. Thus, the hiding of the feeding part is ensured to provide a waterproof function.

According to the present invention as described above, the present invention can provide an antenna pattern that is easy to form and modify, and has a relatively high yield, simple manufacturing process, excellent airtightness and waterproof performance compared to an antenna pattern composed only of an in- It is possible to maintain or improve the radiation performance and the reception sensitivity by compensating for the interference phenomenon of the radio wave despite the metal frame implemented on the terminal frame of the different cross-linked antenna.

In addition, by interposing the connection portion between the ground and the metal body of the outer surface of the terminal frame, the gap between the ground and the metal body can be secured compared with the case where the connection is directly connected, and the reception gain is improved. Is expected to be effective.

1 is a perspective view showing a state in which an in-mold antenna and a printing or plating type antenna are both formed in a heterogeneously crosslinked antenna radiator.
Fig. 2 is an exploded perspective view of the printing or plating type antenna shown in Fig. 1; Fig.
3 is a plan view showing the antenna radiator of FIG. 2 in more detail.
4 is a view showing a process of forming a heterogeneously crosslinked antenna radiator.
5 is a view of a structure of an in-mold antenna in a heterogeneously crosslinked antenna radiator and a structure for bonding an in-mold antenna and a prining or plating type antenna.
6 is an exploded perspective view and an assembled perspective view of an antenna including an in-mold antenna having a connection portion according to an embodiment of the present invention.
7 is a view of a terminal frame including a metal body formed on the outer surface of the terminal frame.
Fig. 8 is a plan view of Fig. 7. Fig.
Fig. 9 is a cross-sectional view showing the AA cross section in Fig. 8. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to preferred embodiments and accompanying drawings.

In the present invention, a heterogeneously crosslinked antenna for fixing the connection portion 112 connected to the metal body 110 of the terminal frame is formed by combining only the merits of the in-mold antenna 102 and the printing or plating type antenna 103 The in-mold antenna 102 can be manufactured inexpensively and can be provided at the outermost part of the frame 101. The printing or plating type antenna 103 can easily modify the antenna, And the antenna radiator 100 is excellent in performance because the distance can be secured. By combining these two, the optimum antenna radiator 100 performance can be exhibited. Although the hermeticity of the feeding portion 106 can be realized by the in-mold antenna 102 alone in closing the feeding portion 106, it is more preferable that the antenna radiator 100 is formed by a printing or plating Type antenna 103 can ultimately enable the finishing of the feeding section 106. The two advantages of high performance and waterproof function can be achieved in one.

First, heterogeneously crosslinked antennas will be described.

1 is a perspective view showing a state in which an in-mold antenna 102 and a printing or plating type antenna 103 are both formed in a heterogeneously crosslinked antenna radiator 100. FIG. 2 is a perspective view of a printing or plating type antenna 103 FIG. 3 is a plan view showing the heterogeneously crosslinked antenna radiator 100 in more detail. As shown in FIG.

As shown in the figure, the heterogeneously crosslinked antenna radiator 100 includes a frame 101 on which an antenna is mounted, and an in-mold layer 102 formed on one end of the frame 101 and having protrusions 104 formed in at least one region thereof. An antenna 102 and a printing or plating type antenna 103 electrically connected to the protrusion 104 of the in-mold antenna 102. [

The in-mold antenna 102 is made of a metal foil (preferably a copper foil) manufactured in advance and is fixed to the frame 101 of the portable communication apparatus by a physical method (adhesion, fixture, etc.) (103) is a method of printing or depositing on the frame (101) using a liquid metal, and is installed on the frame (101) by a completely different process method.

If it is more common to apply only the in-mold method or only the printing or plating method, the antenna radiator 100 will be the result of using the advantages of the two methods as much as possible.

The process sequence for fabricating the antenna radiator 100 is as shown in FIG. 4 and will be described in detail as follows.

First, the in-mold antenna 102 is installed in the outermost portion (the portion where the in-mold antenna is formed) of the frame 101 of the portable communication apparatus. The method of installing the in-mold antenna 102 is based on a physical coupling method between the frame 101 and the antenna, and a method of bonding or fixing using a fixing member can be applied. Since this is a known technique, a detailed description will be omitted do. For reference, a region adjacent to the outermost portion is defined as a quasi-outer portion (a portion where a plating type or a printing antenna is formed), and a printing or plating type antenna 103 is formed thereon. A protrusion 104 is formed on at least one side of the in-mold antenna 102 to form the overlapping portion 105 with the printing or plating type antenna 103. That is, the in-mold antenna 102 and the printing or plating type antenna 103 are electrically connected via the upper projecting portion 104.

On the other hand, the frame 101 is provided with a feeding unit 106 for electrically connecting the antenna formed on the frame 101 and the PCB. The up feeder 106 constitutes a path through which the antenna is inserted into the PCB 101 through the frame 101. Therefore, water can be infiltrated through the feeding part 106, so that the feeding part 106 can be closed by using the antenna radiator 100. The feeding section 106 is first closed by using the in-mold antenna 102 and then the printing or plating type antenna 103 is interposed and patterned on the in-mold antenna 102 to form the feeding section 106 It is possible to provide a waterproof function while allowing electrical connection with the PCB. The electrical connection to the PCB is implemented by the in-mold antenna 102, and the finishing of the feeding portion 106 is implemented by the printing or plating type antenna 103 (FIG. 3). The linked form can be implemented, for example, in the form of a c-clip.

FIG. 5 shows a configuration of the in-mold antenna 102 and a structure for bonding the in-mold antenna 102 to the prining or plating type antenna.

5A, after the in-mold antenna 102 is mounted on the feeding portion 106 of the frame 101, the in-mold antenna 102 is brought into contact with the conductive portion on the PCB, And can be brought into contact with the in-mold antenna 102 by protruding to the top of the PCB. The conductive portion may be a separate C-clip as shown, or any other possible form may be applied. The in-mold antenna 102 formed on the feeding portion 106 is closed by a printing or plating type antenna 103.

The frame 101 is provided with a protrusion 107 which is integrally formed with the frame 101 and extends downwardly of the feeding part 106. The in-mold antenna 102 is connected to the outside of the protrusion 107 And is attached to the periphery. The gap between the feeding part 106 and the protruding part 107 is formed in a slit shape and the gap is formed by the thickness of the in-mold antenna 102 and by the thickness of the filling or filling part 106 of the printing or plating type antenna 103 Lt; / RTI >

5B, the in-mold antenna 102 may extend further downward than in FIG. 5A so as to be in contact with the upper surface of the PCB, so that the shape of the conductive portion is not separately controlled or formed separately, can do. It is preferable that the bottom shape of the in-mold antenna 102 is formed as shown in the drawing, but the shape is not limited thereto. In addition, when the in-mold antenna 102 is formed as shown in FIG. 5B, tension may be generated and may be elastically contacted with the PCB.

5C and 5D, the protrusion 107 as shown in FIGS. 5A and 5B is not provided in the frame 101 and the feeding part 106 is penetrated. The feeding part 106 is provided with a bulky in- 102 are formed on the in-mold antenna 102. The in-mold antenna 102 is formed in a bulky shape by insert injection to fit the bore of the feeding part 106. The primary plating part 108 is formed on the in- And then the printing or plating type antenna 103 is formed on the primary plating portion 108 to manufacture the antenna radiator 100. 5D, the upper surface of the in-mold antenna 102 is positioned lower than the upper surface of the frame 101, so that the primary plating layer can be made thicker, and the upper surface of the primary plating layer can be made thicker 101, thereby making it possible to further secure the thickness downward while keeping the upper portion of the printing or plated-type antenna 103 flat, and as a result, the performance of the antenna radiator 100 can be expected to be improved have.

In such a case, even when the thickness of the frame 101 is thin, it is possible to construct an insert antenna feed structure having a sufficient thickness, so that feeding can be stably performed, while sufficient performance of the antenna performance by the printing or plating type antenna 103 And can also have a waterproof performance.

6 is an exploded perspective view and an assembled perspective view of an antenna including an in-mold antenna having a connecting portion 112 according to an embodiment of the present invention. FIG. 7 is a view showing a metal body 110 formed on an outer surface of a terminal frame Fig. 8 is a plan view of Fig. 7, and Fig. 9 is a cross-sectional view showing an AA cut plane of Fig.

As shown in the figure, the connection part 112 is integrally formed with the in-mold antenna and may be in point contact or surface contact with the metal body 110 formed on the outer surface of the terminal frame. Here, although not shown, the connection part 112 may be formed separately and not connected to the in-mold antenna as described above, and may be connected by welding or may be connected to a printing or plating type antenna.

Since the connecting portion 112 has elasticity, an end portion which is not connected to the antenna is elastically contacted and released from the antenna, so that the connecting portion 112 can contact the metal body 110 when the contact is released.

The connection part 112 is in contact with the metal body 110 by various methods such as surface contact, line contact, point contact, etc. according to the shape thereof, so that the metal body 110 can be used as an extension line of the antenna.

In this case, the metal body 110 is no longer an obstacle to the radio wave, and thus it is possible to manufacture a frame provided with a metal body 110 that can be aesthetically and functionally applied to a mobile phone terminal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: antenna radiator 102: in-mold antenna
103: Printing or plating type antenna 104: Projection
105: overlapping portion 106: feeding portion
107: protruding portion 108: primary plating portion
110: metal body 112: connection part
120: Terminal frame 130: Antenna frame

Claims (5)

An in-mold antenna formed on one side of the terminal frame and an antenna pattern formed by a plated or printed antenna formed in an area adjacent to the in-mold antenna, wherein at least one region of the in-mold antenna is provided with a protrusion, The present invention is applied to a heterogeneously crosslinked antenna in which a plated or printed antenna is formed so as to overlap with the protruding portion, thereby crosslinking the in-mold antenna and the plated or printed antenna,
Wherein at least one of the in-mold antenna and the plated / printed antenna is provided with a connecting portion of a conductive material, and the connecting portion is connected by being in contact with a metal body provided on the outer surface of the terminal frame. A radiator structure electrically connected between a sieve and a crossed antenna. The method according to claim 1,
Wherein the connection portion is made of a metal material and the thickness or shape of the connection portion is adjusted so as to have elasticity, and the radiator structure is electrically connected between the metal body of the terminal frame and the different cross-linked antenna. The method according to claim 1,
And the connection portion is fixed to the antenna and is in surface contact with the metal body. The radiator structure electrically connected between the metal body of the terminal frame and the different cross-linked antenna. The method of claim 3,
Wherein the connection unit is formed integrally with the in-mold antenna. The radiator structure is electrically connected between the metal body of the terminal frame and the different cross-linked antenna. The method according to claim 1,
Wherein an in-mold antenna is further formed on a feeding part of the terminal frame, and a printing or plating type antenna is formed on the upper part of the terminal frame to close the finishing part, thereby ensuring hermeticity of the feeding part and providing a waterproof function. And a radiator structure electrically connected between the cross-linked antenna.

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