Dual-frequency directional antenna

Abstract

The utility model is suitable for the technical field of wireless communication, and provides a double-frequency directional antenna, which comprises a mounting plate, a plurality of antenna plates and a plurality of coaxial lines, and is characterized in that the mounting plate is used for mounting the antenna plates and the coaxial lines; the first antenna plate is mounted on the front surface of the mounting plate through a reflecting plate, the second antenna plate is mounted on the front surface of the mounting plate through a wiring plate, the reflecting plate is used for blocking signals from radiating to the mounting plate, and the wiring plate is used for transmitting electric signals; and the two coaxial lines are respectively connected with the two antenna plates. According to the utility model, the installation plate is arranged, the first antenna plate and the second antenna plate are installed on the installation plate, the two antenna plates are respectively connected with the two coaxial lines so that the two coaxial lines output signals of different frequency bands, the reflection plate is arranged so that signal interference can be reduced and directional transmission can be realized, and the wiring plate can optimize circuit performance. And the problems of low antenna transmission efficiency, high cost and the like caused by independent design of multiple antennas are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of wireless communications, and in particular relates to a dual-frequency directional antenna. Background Art

[0002] Antenna boards play a key role in mobile communication systems. In mobile devices like smartphones and tablets, antenna boards are responsible for receiving and transmitting wireless signals. With the advancement of wireless communication technology, antenna boards need to support multiple communication technologies, such as 2G, 3G, 4G, 5G, Wi-Fi, and Bluetooth, to provide better network connectivity and communication quality.

[0003] When designing and manufacturing antenna boards, the following key factors need to be considered to ensure the performance and reliability of the antenna: antenna type, antenna size and shape, material selection, impedance matching, grounding design, RF layout, heat dissipation design, etc.

[0004] In the existing technology, traditional antennas use a relatively single frequency band. The 2.4-5.8GHZ radio frequency is built-in with a single antenna setting. Using different radio frequencies requires installing different antennas at the same time. When installing the antenna, a larger installation space needs to be reserved. To meet the larger installation space, the shape of the space equipment needs to be expanded for easy installation. Alternatively, the use of multiple independent radio frequency antennas will reduce antenna efficiency, affect signal transmission efficiency and increase costs. Utility Model Content

[0005] The purpose of the embodiment of the present utility model is to provide a dual-band directional antenna, which aims to solve the problem that the frequency band of traditional antennas is relatively single, and the built-in radio frequency of 2.4-5.8GHZ is a single antenna setting. When using different radio frequencies, different antennas need to be installed at the same time. When installing the antenna, a larger installation space needs to be reserved. In order to meet the larger installation space, the shape of the space equipment needs to be expanded for easy installation, or the use of multiple independent radio frequency antennas will reduce the antenna efficiency, affect the signal transmission efficiency and increase the cost.

[0006] The embodiment of the present utility model is implemented as follows: a dual-frequency directional antenna, the dual-frequency directional antenna comprising:

[0007] Mounting plate, the mounting plate is used to install the antenna plate and the coaxial line;

[0008] Two antenna boards, a first antenna board is mounted on the front of the mounting plate via a reflector, and a second antenna board is mounted on the front of the mounting plate via a wiring board. The reflector is used to block signal radiation from the mounting plate, and the wiring board is used to transmit electrical signals.

[0009] Two coaxial lines are installed on the bottom surface of the mounting plate, and the two coaxial lines are respectively connected to the two antenna boards.

[0010] Preferably, the mounting plate is provided with a first mounting hole, a group of second mounting holes and a group of connecting holes, the first mounting hole is used to mount the reflector plate through a first mounting member, the second mounting hole is used to mount the wiring board through a group of second mounting members, and a group of connecting holes are respectively connected to the coaxial line through connecting members.

[0011] Preferably, the first antenna plate is mounted on the reflective plate via a first fixing member, the first antenna plate is parallel to the reflective plate, the first antenna plate is in the shape of a circular plate and a first positioning hole for positioning the first fixing member is provided at the center of the circle.

[0012] Preferably, the reflector is square and forms a symmetrical figure with the diagonal as the axis of symmetry, a group of adjacent side edges of the reflector are respectively provided with convex protrusions, and another group of adjacent side edges are respectively provided with square protrusions; the reflector is located between the first antenna plate and the mounting plate, and the reflector is installed above the mounting plate through a first mounting member, the reflector and the mounting plate are parallel, a first positioning member is provided on the bottom surface of the reflector, the first positioning member is used to position the reflector on the mounting plate, and the bottom surface of the reflector is connected to the connecting member.

[0013] Preferably, a group of second antenna plates are arranged and installed in parallel above the wiring board, the center of a group of second antenna plates is located on the same straight line as the first antenna plate, the upper surface of the second antenna plate is lower than the upper surface of the first antenna plate in the vertical direction, the second antenna plate is installed above the wiring board, the second antenna plate is installed on the wiring board through a second fixing member, the second antenna plate is parallel to the wiring board, the second antenna plate is a circular plate, and a second positioning hole for positioning the second fixing member is provided at the center of the circle.

[0014] Preferably, the outer diameter of the second antenna board is smaller than the outer diameter of the first antenna board, and the installation height of the second antenna board is lower than the installation height of the first antenna board.

[0015] Preferably, the wiring board is of an irregular shape, and the wiring board is provided with a first connecting part and a second connecting part, the first connecting part is in the shape of two square plates, and the second connecting part is in the shape of two bent rectangular plates. The first connecting part is located below the two second antenna plates, and the center of the first connecting part is installed on the mounting plate through the second mounting member. The adjacent two side edges of the first connecting part are respectively connected to the second connecting part, and the second connecting part is bent six times and connected between the two square plates of the first connecting part, and the bottom surface of the second connecting part is connected to the connecting member.

[0016] Preferably, the wiring board and the reflective plate are made of aluminum.

[0017] An embodiment of the present invention provides a dual-band directional antenna. The present invention installs two antenna boards and two coaxial lines through a mounting plate. The two antenna boards are respectively installed on the mounting plate through a reflector plate and a wiring plate. The reflector plate is installed between the mounting plate and the first antenna board. The first antenna board and the second antenna board are installed on the mounting plate. The two antenna boards are respectively connected to the two coaxial lines so that the two coaxial lines output signals of different frequency bands. The provision of the reflector plate can reduce signal interference and realize directional transmission. The wiring plate can optimize circuit performance and reduce the problems of low antenna transmission efficiency and high cost caused by the independent design of multiple antennas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of a dual-band directional antenna provided by an embodiment of the present utility model;

[0019] Figure 2 A rear view of a dual-band directional antenna provided by an embodiment of the present utility model;

[0020] Figure 3 A side view of a dual-frequency directional antenna provided in an embodiment of the present utility model.

[0021] In the accompanying drawings: 1. Mounting plate; 11. First mounting member; 12. Second mounting member; 2. First antenna board; 21. Reflector; 3. Second antenna board; 31. Wiring board; 4. Coaxial line. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0024] like Figure 1-3 As shown, it is a structural diagram of a dual-frequency directional antenna provided by an embodiment of the present utility model, comprising: a mounting plate 1, the mounting plate 1 is used to mount an antenna plate and a coaxial line 4;

[0025] Two antenna boards, the first antenna board 2 is mounted on the front of the mounting plate 1 through a reflector 21, and the second antenna board 3 is mounted on the front of the mounting plate 1 through a wiring board 31. The reflector 21 is used to block the signal from radiating toward the mounting plate 1, and the wiring board 31 is used to transmit electrical signals;

[0026] Two coaxial lines 4 are installed on the bottom surface of the mounting plate 1 , and the two coaxial lines 4 are connected to the two antenna boards respectively.

[0027] In an embodiment of the present invention, preferably, the dual-band directional antenna is mainly composed of a mounting plate 1, two antenna plates and two coaxial lines 4. The two coaxial lines 4 are respectively mounted on the bottom surface of the mounting plate 1 and are respectively connected to the two antenna plates so that the dual-band of the antenna plate can be realized according to the RF output of the antenna plate. The first antenna plate 2 is mounted on the reflecting plate 21, and the reflecting plate 21 is used to mount the first antenna plate 2 above the mounting plate 1. The reflecting plate 21 reflects and blocks the signal from radiating downward to direct the signal transmission direction of the antenna plate. The second antenna plate 3 is mounted on the wiring plate 31, and the wiring plate 31 is used to mount the second antenna plate 3 above the mounting plate 1. The wiring board 31 transmits electrical signals, reducing the loss and interference in signal transmission. The reflector 21 and the wiring board 31 are respectively arranged under the antenna board. As a whole, not only can two signals of different frequency bands be output through the coaxial cable 4, the coaxial cable 4 connected to the first antenna board 2 can be a 2.4G radio frequency coaxial cable 4, and the coaxial cable 4 connected to the second antenna board 3 can be a 5.8G radio frequency coaxial cable 4. There is no need to expand the shape of the space equipment, and the two antenna boards are installed on the mounting plate 1 at the same time, which can achieve better impedance matching. The reflector 21 is used to block the reflection of the signal, reduce the loss, improve the radiation efficiency of the antenna, the transmission efficiency of the signal, and reduce the cost.

[0028] In an example of the present invention, the present invention installs two antenna boards and two coaxial lines 4 through a mounting plate 1. The two antenna boards are respectively installed above the mounting plate 1 through a reflecting plate 21 and a wiring plate 31. The reflecting plate 21 is installed between the mounting plate 1 and the first antenna board 2. The first antenna board 2 and the second antenna board 3 are installed on the mounting plate 1. The two antenna boards are respectively connected to the two coaxial lines 4 so that the two coaxial lines 4 output signals of different frequency bands. The provision of the reflecting plate 21 can reduce signal interference and realize directional transmission. The wiring plate 31 can optimize circuit performance and reduce problems such as low antenna transmission efficiency and high cost caused by the independent design of multiple antennas.

[0029] like Figure 1-3 As shown, as a preferred embodiment of the present invention, the mounting plate 1 is provided with a first mounting hole, a group of second mounting holes and a group of connecting holes, the first mounting hole is used to install the reflector 21 through a first mounting member 11, the second mounting hole is used to install the wiring board 31 through a group of second mounting members 12, and a group of connecting holes are respectively connected to the coaxial line 4 through connecting members.

[0030] In an embodiment of the utility model, preferably, the mounting plate 1 can be a rectangular plate with a certain thickness, and the mounting plate 1 can be made of aluminum. A plurality of through holes can also be provided on the mounting plate 1 to facilitate the installation of the dual-band directional antenna on the device. A first mounting hole and a second mounting hole can be provided along the axis of symmetry with the mounting half row, so that the first antenna plate 2 and the second antenna plate 3 can be arranged side by side and the center positions thereof are respectively at the same distance from the long sides of the mounting plate 1. The overall effect is better and more beautiful, and the installation is more compact, reducing the installation space, so that the overall installation space can be reduced without affecting the signal quality. A group of connection holes are respectively provided below the first antenna plate 2 so that the first antenna plate 2 and the second antenna plate 3 are connected to the coaxial line 4 and output signals of the corresponding frequency bands.

[0031] like Figure 1-3 As shown, as a preferred embodiment of the present invention, the first antenna plate 2 is installed on the reflective plate 21 through a first fixing member, the first antenna plate 2 is parallel to the reflective plate 21, and the first antenna plate 2 is a circular plate and a first positioning hole for positioning the first fixing member is set at the center of the circle.

[0032] In an embodiment of the utility model, preferably, the first antenna plate 2 can be a circular plate-shaped aluminum block, the first antenna plate 2 is fixed to the reflective plate 21 through a first fixing member, and the reflective plate 21 is installed on the mounting plate 1 through a first mounting member 11. At this time, the first antenna plate 2, the reflective plate 21 and the mounting plate 1 are parallel to each other, and a first positioning hole is set in the circular position of the circular first antenna plate 2 to facilitate the first fixing member to pass through and install the first antenna plate 2 on the reflective plate 21.

[0033] like Figure 1-3 As shown, as a preferred embodiment of the present invention, the reflector 21 is square and forms a symmetrical figure with the diagonal as the axis of symmetry, and a group of adjacent side edges of the reflector 21 are respectively provided with convex protrusions, and another group of adjacent side edges are respectively provided with square protrusions; the reflector 21 is located between the first antenna plate 2 and the mounting plate 1, and the reflector 21 is installed above the mounting plate 1 through the first mounting member 11. The reflector 21 is parallel to the mounting plate 1, and a first positioning member is provided on the bottom surface of the reflector 21. The first positioning member is used to position the reflector 21 on the mounting plate 1, and the bottom surface of the reflector 21 is connected to the connecting member.

[0034] In an embodiment of the present utility model, preferably, the reflector 21 can be a square plate with a certain thickness and a side length slightly larger than the diameter of the first antenna plate 2. Convex-shaped protrusions are respectively arranged at the midpoint positions of a group of adjacent side edges on the four sides of the square, and square-shaped protrusions are respectively arranged at the midpoint positions of another group of adjacent side edges, and the entire reflector 21 forms an axially symmetrical figure with the diagonal line of the square. A through hole is provided at the center position of the reflector 21 so that the reflector 21 can be positioned on the mounting plate 1 through the first positioning member, and the bottom surface of the reflector 21 is connected to the connecting member to connect to the coaxial line 4.

[0035] like Figure 1-3 As shown, as a preferred embodiment of the present invention, a group of second antenna plates 3 are arranged and installed in parallel above the wiring plate 31. The center of a group of second antenna plates 3 is located on the same straight line as the first antenna plate 2. In the vertical direction, the upper surface of the second antenna plate 3 is lower than the upper surface of the first antenna plate 2. The second antenna plate 3 is installed above the wiring plate 31. The second antenna plate 3 is installed on the wiring plate 31 through a second fixing member. The second antenna plate 3 is parallel to the wiring plate 31. The second antenna plate 3 is a circular plate and a second positioning hole for positioning the second fixing member is provided at the center of the circle.

[0036] In an embodiment of the present invention, preferably, the second antenna board 3 can be composed of two circular plate-shaped aluminum blocks arranged side by side, and the two second antenna boards 3 are connected to form a whole through a wiring board 31. Second positioning holes are respectively provided at the center of the two circular second antenna boards 3 to facilitate the second antenna board 3 to be installed on the wiring board 31 through a second fixing part.

[0037] like Figure 1-3 As shown, as a preferred embodiment of the present invention, the outer diameter of the second antenna plate 3 is smaller than the outer diameter of the first antenna plate 2 , and the installation height of the second antenna plate 3 is lower than the installation height of the first antenna plate 2 .

[0038] In an embodiment of the present invention, preferably, the two second antenna plates 3 can be installed on the same horizontal plane and lower than the upper surface of the first antenna plate 2, and the diameter of the second antenna plate 3 is smaller than the diameter of the first antenna plate 2, so that the signal frequency bands of the two antenna plates are different.

[0039] like Figure 1-3As shown, as a preferred embodiment of the present invention, the wiring board 31 is special-shaped, and the wiring board 31 is provided with a first connecting part and a second connecting part, the first connecting part is two square plates, and the second connecting part is two bent rectangular plates. The first connecting part is located below the two second antenna boards 3, and the center of the first connecting part is installed on the mounting plate 1 through the second mounting member 12. The adjacent two side edges of the first connecting part are respectively connected to the second connecting part, and the second connecting part is bent six times and connected between the two square plates of the first connecting part. The bottom surface of the second connecting part is connected to the connecting member.

[0040] In an embodiment of the present invention, preferably, the wiring board 31 can be a special-shaped aluminum block composed of two square plates and two irregular plates. The center positions of the two square aluminum blocks are respectively connected to the center of the two second antenna plates 3 through a second fixing member, and the two opposite first side edges of the two squares are respectively connected to the same section of bent rectangular plate, and the two second side edges adjacent to the first side edges are respectively connected to the same section of bent rectangular plate. The two sections of the rectangular bent plates can be bent six times in the same way, and the bending lengths are different, so that the signal transmission routes will not interfere with each other and affect the signal transmission quality.

[0041] like Figure 1-3 As shown, as a preferred embodiment of the present invention, the wiring board 31 and the reflective plate 21 are made of aluminum.

[0042] In an embodiment of the utility model, preferably, the mounting plate 1, the antenna plate, the reflective plate 21 and the wiring plate 31 can all be made of aluminum. Aluminum is easy to process and has high reflectivity, so that the reflective plate 21 can block the radiation of the signal. In addition, the thermal conductivity of aluminum is good, which facilitates timely heat dissipation of the entire dual-band directional antenna, thereby improving the thermal stability and life of the dual-band directional antenna.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-frequency directional antenna, characterized in that: The dual-frequency directional antenna comprises: Mounting plate, the mounting plate is used to install the antenna plate and the coaxial line; Two antenna boards, a first antenna board is mounted on the front of the mounting plate via a reflector, and a second antenna board is mounted on the front of the mounting plate via a wiring board. The reflector is used to block signal radiation from the mounting plate, and the wiring board is used to transmit electrical signals. Two coaxial lines are installed on the bottom surface of the mounting plate, and the two coaxial lines are respectively connected to the two antenna boards.

2. The dual-frequency directional antenna according to claim 1, characterized in that: The mounting plate is provided with a first mounting hole, a group of second mounting holes and a group of connecting holes. The first mounting hole is used to mount the reflector plate through a first mounting member, the second mounting hole is used to mount the wiring board through a group of second mounting members, and the group of connecting holes are respectively connected to the coaxial line through connecting members.

3. The dual-frequency directional antenna according to claim 2, characterized in that: The first antenna plate is mounted on the reflector through a first fixing member. The first antenna plate is parallel to the reflector. The first antenna plate is in the shape of a circular plate and a first positioning hole for positioning the first fixing member is provided at the center of the circle.

4. The dual-frequency directional antenna according to claim 3, characterized in that: The reflector is square and forms a symmetrical figure with the diagonal as the axis of symmetry. A group of adjacent side edges of the reflector are respectively provided with convex protrusions, and another group of adjacent side edges are respectively provided with square protrusions; the reflector is located between the first antenna plate and the mounting plate, and the reflector is installed above the mounting plate through the first mounting member. The reflector and the mounting plate are parallel to each other, and a first positioning member is provided on the bottom surface of the reflector. The first positioning member is used to position the reflector on the mounting plate, and the bottom surface of the reflector is connected to the connecting member.

5. The dual-frequency directional antenna according to claim 2, characterized in that: A group of second antenna plates are arranged and installed in parallel above the wiring board. The center of a group of second antenna plates is located on the same straight line as the first antenna plate. In the vertical direction, the upper surface of the second antenna plate is lower than the upper surface of the first antenna plate. The second antenna plate is installed above the wiring board. The second antenna plate is installed on the wiring board through a second fixing member. The second antenna plate is parallel to the wiring board. The second antenna plate is a circular plate and a second positioning hole for positioning the second fixing member is provided at the center of the circle.

6. The dual-frequency directional antenna according to claim 5, characterized in that: An outer diameter of the second antenna board is smaller than an outer diameter of the first antenna board, and an installation height of the second antenna board is lower than an installation height of the first antenna board.

7. The dual-frequency directional antenna according to claim 5, characterized in that: The routing plate is of an irregular shape and is provided with a first connecting portion and a second connecting portion. The first connecting portion is in the shape of two square plates, and the second connecting portion is in the shape of two bent rectangular plates. The first connecting portion is located below the two second antenna plates, and the center of the first connecting portion is mounted on the mounting plate through a second mounting member. The adjacent two side edges of the first connecting portion are respectively connected to the second connecting portion. The second connecting portion is bent six times and connected between the two square plates of the first connecting portion, and the bottom surface of the second connecting portion is connected to the connecting member.

8. The dual-frequency directional antenna according to claim 1, wherein: The wiring board and the reflector are made of aluminum.

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