Multi-band antenna

Abstract

The utility model discloses a multiband antenna, relates to LTE antenna technical field, including shell and expansion subassembly, the interior of shell is provided with PCB substrate, and the middle part of PCB substrate is fixed with RF radio frequency coaxial line, the expansion subassembly is provided the outside of PCB substrate, the expansion subassembly includes front copper clad radiator, back copper clad radiator and electroless plating copper through hole, and the front copper clad radiator and the back copper clad radiator are fixed with the electroless plating copper through hole through the electroless plating copper through hole through the electroless plating copper through hole through the electroless plating copper through hole through the electroless plating copper through hole. A front copper-clad radiator is arranged on one side of the PCB substrate, and rear copper-clad radiators are arranged at the two ends of the other side of the PCB substrate. According to the multi-band antenna, in order to achieve the band of 450-470 MHZ, the front copper-clad radiator and the rear copper-clad radiator are arranged on the two sides of the PCB substrate, and the front copper-clad radiator and the rear copper-clad radiator are connected through the copper deposition through holes, so that the length of the antenna array can be increased by utilizing a front PCB and rear PCB copper-clad mode, and the antenna array is more compact. Therefore, the performance of the frequency band of 450-470 MHZ is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LTE antenna technical field, concretely is a kind of multi-band antenna. BACKGROUND

[0002] LTE antenna is one of the core components of 4G network, mainly responsible for transmitting wireless signals from base station to mobile device, and receiving signals from device, the working principle of LTE antenna is to realize wireless communication by electromagnetic wave, convert telecommunication signal into electromagnetic wave, then spread out through air, when electromagnetic wave meets another antenna, the electron on the antenna will start to oscillate, thereby transmitting information.

[0003] The existing external LTE antenna has limited bandwidth coverage frequency, it is inconvenient to reach 450-470MHZ, so that when using external LTE antenna, it has certain limitation problem. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of multi-band antenna to solve the problems presented in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of multi-band antenna, including shell and expansion component, the inside of the shell is placed with PCB substrate, and the middle part of PCB substrate is fixed with RF radio frequency coaxial line, the expansion component is set to the outside of PCB substrate, the expansion component includes front copper clad radiator, rear copper clad radiator and copper filled via, one side of the PCB substrate is provided with front copper clad radiator, and the other side of PCB substrate is provided with rear copper clad radiator at both ends, one end and middle part of the PCB substrate are all provided with copper filled via, and front copper clad radiator and rear copper clad radiator are connected by copper filled via.

[0006] Further, the length of the PCB substrate is 168.6mm, and the width of the PCB substrate is 17mm.

[0007] Further, one end of the PCB substrate is convex, and the PCB substrate is embedded with the shell.

[0008] Further, the number of copper filled via is twelve, and the diameter of copper filled via is 0.6mm.

[0009] Further, a positioning hole is formed in the inside of one end of the PCB substrate, and the diameter of the positioning hole is 3.5mm.

[0010] Further, the end of the shell is connected with connecting component, and the connecting component includes upper fixed seat, lower fixed seat and rivet, the bottom of the shell is connected with upper fixed seat, the lower end of upper fixed seat is internally provided with lower fixed seat, and the lower end of upper fixed seat is arranged with rivet on both sides.

[0011] Further, the rivet is rotatably connected with the lower fixing base, and the diameter of the lower fixing base is 13mm.

[0012] Further, the connecting assembly further comprises an SMA joint and an anti-skid strip, the bottom of the lower fixing base is connected with the SMA joint, and the outer side of the SMA joint is provided with the anti-skid strip.

[0013] The utility model provides a kind of multi-band antenna, with the following beneficial effects:

[0014] 1, the utility model discloses in order to this antenna reaches 450-470MHZ frequency band, by setting front copper clad radiation body and rear copper clad radiation body on the two sides of PCB substrate, and using copper filled via to connect front copper clad radiation body and rear copper clad radiation body, so it can use the way of front and rear PCB copper clad to lengthen the length of antenna array, to reach the performance of 450-470MHZ this frequency band, while also maintain the performance stability of LTE frequency band;

[0015] 2, the utility model discloses by the setting of connecting assembly, when installing, it can avoid hand slip using anti-skid strip, to connect SMA joint, and the upper fixing base is rotatably connected with the lower fixing base by rivet, so it is also convenient to adjust the angle of antenna after installation, and it is favorable to improve the use range of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model a kind of multi-band antenna;

[0017] Figure 2 It is the front view three-dimensional structure schematic diagram of the utility model a kind of multi-band antenna's PCB substrate;

[0018] Figure 3 It is the rear view three-dimensional structure schematic diagram of the utility model a kind of multi-band antenna's PCB substrate.

[0019] In the drawing: 1, shell;2, PCB substrate;3, RF coaxial line;4, expansion assembly;401, front copper clad radiation body;402, rear copper clad radiation body;403, copper filled via;5, positioning hole;6, connecting assembly;601, upper fixing base;602, lower fixing base;603, rivet;604, SMA joint;605, anti-skid strip. DETAILED DESCRIPTION

[0020] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0021] As Figures 1 to 3As shown in the figure, a multi-band antenna includes a shell 1 and an expansion assembly 4, the inside of the shell 1 is provided with a PCB substrate 2, and the middle of the PCB substrate 2 is fixed with an RF coaxial line 3, the expansion assembly 4 is arranged outside the PCB substrate 2, the expansion assembly 4 includes a front copper-clad radiator 401, a rear copper-clad radiator 402 and a copper-filled via 403, one side of the PCB substrate 2 is provided with the front copper-clad radiator 401, and the other end of the other side of the PCB substrate 2 is provided with the rear copper-clad radiator 402, and the one end and the middle of the PCB substrate 2 are both provided with the copper-filled via 403, and the front copper-clad radiator 401 and the rear copper-clad radiator 402 are connected through the copper-filled via 403, the length of the PCB substrate 2 is 168.6mm, and the width of the PCB substrate 2 is 17mm, one end of the PCB substrate 2 is protruding, and the PCB substrate 2 is embedded in the shell 1 to avoid shaking of the PCB substrate 2, the number of the copper-filled via 403 is twelve, and the diameter of the copper-filled via 403 is 0.6mm, by arranging the front copper-clad radiator 401 and the rear copper-clad radiator 402 on both sides of the PCB substrate 2, and using the copper-filled via 403 to connect the front copper-clad radiator 401 and the rear copper-clad radiator 402, the overall length of the antenna radiator can be increased, and a positioning hole 5 is arranged in the inside of one end of the PCB substrate 2, and the diameter of the positioning hole 5 is 3.5mm, which is convenient for limiting.

[0022] As shown in the figure, Figure 1 and Figure 2 As shown in the figure, the end of the shell 1 is connected with a connecting assembly 6, and the connecting assembly 6 includes an upper fixed seat 601, a lower fixed seat 602 and a rivet 603, the bottom of the shell 1 is connected with the upper fixed seat 601, the inside of the lower end of the upper fixed seat 601 is provided with the lower fixed seat 602, and the two sides of the lower end of the upper fixed seat 601 are provided with the rivet 603, the rivet 603 is rotatably connected with the lower fixed seat 602, and the diameter of the lower fixed seat 602 is 13mm, and the upper fixed seat 601 and the lower fixed seat 602 are rotatably connected through the rivet 603, so that the angle of the antenna can be adjusted after installation, the connecting assembly 6 further includes an SMA connector 604 and an anti-skid strip 605, the bottom of the lower fixed seat 602 is connected with the SMA connector 604, and the outer side of the SMA connector 604 is provided with the anti-skid strip 605, which can avoid hand slipping to connect the SMA connector 604.

[0023] In summary, the multi-band antenna is used, first according to Figure 1 , Figure 2 and Figure 3The structure shown in the middle, with anti-skid strip 605 can avoid hand slip, in order to connect between SMA joint 604 and equipment, then, in the process of use, due to the upper fixed seat 601 and the lower fixed seat 602 through rivet 603 rotation connection, convenient adjustment of the angle of the antenna, then, in the process of transmitting and receiving signal, using copper filled via 403 to connect the front copper clad radiation body 401 and the back copper clad radiation body 402 on both sides of the PCB substrate 2, thus can increase the overall length of the antenna radiator, so as to achieve the performance of 450-470MHZ this frequency band, at the same time also keep the performance of LTE frequency band stable, finally, using RF coaxial line 3 and SMA joint 604 to transmit the signal.

[0024] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present application, and to enable those of ordinary skill in the art to understand the present application in order to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A multi-band antenna comprising a housing (1) and an extension assembly (4), characterized in that, The inside of the shell (1) is provided with a PCB substrate (2), and the middle of the PCB substrate (2) is fixed with an RF coaxial line (3), the expansion assembly (4) is arranged outside the PCB substrate (2), the expansion assembly (4) comprises a front copper clad radiator (401), a rear copper clad radiator (402) and a copper filled via (403), one side of the PCB substrate (2) is provided with a front copper clad radiator (401), and the other side of the PCB substrate (2) is provided with a rear copper clad radiator (402) at both ends, and the one end and the middle of the PCB substrate (2) are provided with a copper filled via (403), and the front copper clad radiator (401) and the rear copper clad radiator (402) are connected through the copper filled via (403).

2. A multi-band antenna according to claim 1, wherein, The length of the PCB substrate (2) is 168.6mm, and the width of the PCB substrate (2) is 17mm.

3. The multi-band antenna of claim 1, wherein, The one end of the PCB substrate (2) is convex, and the PCB substrate (2) is embedded in the shell (1).

4. The multi-band antenna of claim 1, wherein, The number of copper filled vias (403) is twelve, and the diameter of the copper filled via (403) is 0.6mm.

5. The multi-band antenna of claim 1, wherein, The inside of the one end of the PCB substrate (2) is provided with a positioning hole (5), and the diameter of the positioning hole (5) is 3.5mm.

6. The multi-band antenna of claim 1, wherein, The end of the shell (1) is connected with a connecting assembly (6), and the connecting assembly (6) comprises an upper fixed seat (601), a lower fixed seat (602) and a rivet (603), the bottom of the shell (1) is connected with the upper fixed seat (601), the lower end of the upper fixed seat (601) is internally provided with the lower fixed seat (602), and the lower end of the upper fixed seat (601) is arranged with the rivet (603) on both sides.

7. A multi-band antenna according to Claim 6, wherein, The rivet (603) is rotatably connected with the lower fixed seat (602), and the diameter of the lower fixed seat (602) is 13mm.

8. A multi-band antenna according to Claim 6, wherein, The connecting assembly (6) further comprises an SMA joint (604) and an anti-skid strip (605), the bottom of the lower fixed seat (602) is connected with the SMA joint (604), and the outer side of the SMA joint (604) is provided with the anti-skid strip (605).

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