LTE (Long Term Evolution) antenna of in-mold injection molding metal

Abstract

The utility model provides an LTE antenna of in-mold injection molding metal, comprising a housing and a mainboard, the mainboard is arranged on the housing, the housing is provided with an LDS antenna, the housing is provided with in-mold injection molding metal, the in-mold injection molding metal comprises a metal main body wrapped in the housing and a conduction column exposed outside the housing, and the metal main body is provided with a plurality of through holes. The mainboard is provided with a first elastic pin and a second elastic pin, the first elastic pin is in contact with the conduction column, and the second elastic pin is in contact with the LDS antenna. The beneficial effects of the utility model are that under the condition of poor environment and small clearance, the size of the antenna can be reduced, the clearance requirement can be reduced, and the performance of the antenna can meet the requirement.

Description

Technical Field

[0001] The utility model relates to an antenna, in particular to an LTE antenna with in-mold injection-molded metal. Background Art

[0002] In radio equipment, the device used to radiate and receive radio waves is called an antenna.

[0003] An antenna is a device that converts electromagnetic energy in a transmission line into electromagnetic waves in free space or converts electromagnetic waves in space into electromagnetic energy in a transmission line.

[0004] LTE (Long Term Evolution) is a wireless communication technology developed under the leadership of 3GPPQ. It is a high-speed wireless communication standard for mobile devices and data terminals based on GSM / EDGE and UMTS / HSPA technologies.

[0005] In the current environment, LTE antennas are generally implemented in the form of FPC or LDS, which requires a certain amount of environmental space clearance and antenna area to meet the antenna performance. However, in the case of poor environment and small clearance, the antenna size is difficult to meet the performance requirements. Summary of the invention

[0006] In order to solve the problems in the prior art, the utility model provides an in-mold injection-molded metal LTE antenna.

[0007] The utility model provides an LTE antenna of in-mold injection-molded metal, comprising a shell and a mainboard, wherein the mainboard is arranged on the shell, an LDS antenna is arranged on the shell, the shell is provided with in-mold injection-molded metal, the in-mold injection-molded metal comprises a metal body wrapped in the shell and a conducting column exposed outside the shell, a first elastic foot and a second elastic foot are arranged on the mainboard, the first elastic foot is in contact with the conducting column, and the second elastic foot is in contact with the LDS antenna.

[0008] As a further improvement of the present invention, a feeding point is provided on the LDS antenna, and the second elastic foot is in contact with the feeding point.

[0009] As a further improvement of the present invention, the LDS antenna includes a plastic bracket and a metal coating on the plastic bracket, the laser beam path of which is completed by laser engraving and the metal coating is completed by chemical plating.

[0010] The beneficial effect of the utility model is that through the above scheme, in the case of poor environment and small clearance, the antenna size and clearance requirements can be reduced, so that the antenna performance can meet the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other solutions can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a front schematic diagram of an in-mold injection-molded metal LTE antenna of the utility model.

[0013] Figure 2 It is a side schematic diagram of an in-mold injection-molded metal LTE antenna of the utility model.

[0014] Figure 3 It is a schematic diagram of the back side of an in-mold injection-molded metal LTE antenna of the utility model. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0016] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] like Figure 1 to Figure 2 As shown, an in-mold metal injection-molded LTE antenna includes a shell (not shown in the figure) and a mainboard 1, and the shell is a plastic shell.

[0020] The mainboard 1 is arranged on the shell, and the shell is provided with an LDS antenna 3. The shell is provided with an in-mold injection-molded metal 2, that is, the in-mold injection-molded metal 2 is metal formed inside the shell. The in-mold injection-molded metal 2 in the plastic mold is equivalent to increasing the antenna clearance away from the machine screen and the mainboard, thereby effectively solving the antenna efficiency problem.

[0021] The in-mold injection-molded metal 2 includes a metal body enclosed in a shell and a conductive column 21 exposed outside the shell.

[0022] The main board 1 is provided with a first elastic foot 11 and a second elastic foot 12 . The first elastic foot 11 is in contact with the conductive column 21 . The main board 1 and the in-mold injection metal 2 can be connected and conducted through the first elastic foot 11 and the conductive column 21 .

[0023] The second elastic pin 12 is in contact with the LDS antenna 3 , and the connection between the mainboard 1 and the LDS antenna 3 can be achieved through the second elastic pin 12 .

[0024] A feeding point is provided on the LDS antenna 3 , and the second elastic foot 12 is in contact with the feeding point.

[0025] The LDS antenna 2 includes a plastic bracket and a metal coating on the plastic bracket, the laser beam path of which is completed by laser engraving and the metal coating is completed by chemical plating.

[0026] In harsh environments, the use of in-mold injection molding and LDS antennas (the LDS process is to use laser engraving on plastic to complete the laser path, and then complete the metal coating through chemical plating) can reduce the antenna size and clearance requirements, so that the antenna performance can meet the needs.

[0027] 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, activating the circuit pattern within a few seconds. Simply put (for mobile phone antenna design and production), on the molded plastic bracket, the metal antenna pattern is directly plated on the bracket using laser technology. This technology can directly laser the antenna on the mobile phone shell.

[0028] The utility model provides an in-mold injection metal LTE antenna, which adopts the form of in-mold injection metal and LDS combination, and is realized by two elastic feet on the mainboard 1 respectively contacting the in-mold injection metal 2 and the LDS antenna 3, so that the antenna can meet the performance of 4G low frequency 700-960 high frequency 1710-2690MHZ LTE. The design is suitable for handheld devices in the case of poor antenna environment and insufficient bracket wiring area for low frequency ( Figure 1 The LDS antenna 3 is very small, and there is not enough clearance and height for the antenna. It can meet customers' communication needs for the full frequency band of LTE, effectively solve the problem of harsh antenna environment, and has strong practicality.

[0029] The utility model provides an in-mold injection-molded metal LTE antenna, which can be applied to handheld devices.

[0030] The utility model provides an LTE antenna with in-mold injection-molded metal in a handheld device. Based on the fact that the existing models have poor environment, small clearance and insufficient antenna size and area, and cannot achieve the required performance requirements, the utility model adopts the method of in-mold injection-molded metal (which can be far away from the screen metal and other metal components of the machine) + bracket LDS form (LDS process is to complete the laser beam path through laser laser engraving on plastic, and then complete the metal coating through chemical plating). The antenna is realized by contacting the in-mold injection-molded metal and the bracket feeding point wiring through the elastic feet on the mainboard. The in-mold injection-molded metal in the plastic mold is equivalent to increasing the antenna clearance away from the machine screen and the mainboard, thereby effectively solving the antenna efficiency problem and meeting the performance of 4G low-frequency 700-960 high-frequency 1710-2690MHZ LTE.

[0031] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An in-mold metal LTE antenna, characterized in that: It includes a shell and a mainboard, the mainboard is arranged on the shell, the shell is provided with an LDS antenna, the shell is provided with in-mold injection metal, the in-mold injection metal includes a metal body wrapped in the shell and a conductive column exposed outside the shell, the mainboard is provided with a first elastic foot and a second elastic foot, the first elastic foot is in contact with the conductive column, and the second elastic foot is in contact with the LDS antenna.

2. The in-mold metal injection molded LTE antenna according to claim 1, characterized in that: A feeding point is provided on the LDS antenna, and the second elastic foot is in contact with the feeding point.

3. The in-mold metal injection molded LTE antenna according to claim 1, characterized in that: The LDS antenna includes a plastic bracket and a metal coating on the plastic bracket, the laser path of which is completed by laser engraving and the metal coating is completed by chemical plating.

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