LORA antenna

Abstract

The utility model discloses an LORA antenna, which relates to the technical field of antennas and comprises a circuit board and a coaxial line, the circuit board is a flexible circuit board, the front surface of the circuit board is provided with a radiator, a first connection point and a second connection point, one end of the coaxial line is electrically connected with the first connection point, and the other end of the coaxial line is electrically connected with the second connection point. The first connecting point is arranged on the coaxial line, the second connecting point is arranged on the coaxial line on the outer side of the first connecting point, the coaxial line is fixedly connected with the circuit board, and the radiator is connected with the circuit board through the first connecting point and the second connecting point. The structure of the circuit board is not damaged even if the antenna is deformed under the action of external force, so that the antenna is easier to install in equipment, the installation process is more convenient, the compatibility is enhanced, the structural stability is high, and the antenna is stronger in radiation directivity and better in radiation effect due to the fact that the radiator is arranged on the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, specifically a LORA antenna. Background Technology

[0002] Currently, some electronic devices on the market achieve wireless data acquisition through built-in LoRa antennas. However, as electronic devices gradually become smaller, the space reserved for LoRa antenna installation is decreasing. Traditional LoRa antennas cannot meet the built-in installation requirements of miniaturized electronic devices due to the limited internal space. Moreover, since existing LoRa antennas are usually made of relatively rigid circuit boards, if the cross-sectional shape of the space inside the electronic device for installing the LoRa antenna is curved, the LoRa antenna cannot be used in the installation of this type of electronic device. The ability of LoRa antennas to accommodate built-in installation in electronic devices remains insufficient. Utility Model Content

[0003] To address the technical deficiencies in the background technology, this utility model proposes a LORA antenna, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0004] A LORA antenna includes a circuit board and a coaxial cable. The circuit board is a flexible circuit board. The front side of the circuit board has a radiator, a first connection point, and a second connection point. One end of the coaxial cable is electrically connected to the first connection point. The second connection point is disposed on the coaxial cable outside the first connection point and realizes a fixed connection between the coaxial cable and the circuit board. The radiator is connected to the circuit board through the first connection point and the second connection point.

[0005] As a further embodiment of this utility model, the circuit board is a flexible circuit board with electrolytic copper circuitry arranged on one side.

[0006] As a further embodiment of the present invention, the radiator includes a first radiating circuit and a second radiating circuit. The first radiating circuit is connected to the circuit board through a first connection point, and the second radiating circuit is connected to the circuit board through a second connection point.

[0007] As a further embodiment of the present invention, the first radiating circuit is distributed on the surface of the circuit board in a semi-enclosed manner, and an opening is formed on the surface of the circuit board.

[0008] As a further embodiment of the present invention, the second radiation circuit is located on the surface of the circuit board inside the opening.

[0009] As a further embodiment of this utility model, the first radiation circuit, the second radiation circuit, and the portion of the coaxial line located between the first radiation circuit and the second radiation circuit are fixed to the circuit board by UV adhesive.

[0010] As a further embodiment of this utility model, the other end of the coaxial cable is provided with a terminal, the port of the terminal facing downwards and forming an included angle of 30°.

[0011] As a further embodiment of this utility model, the length of the coaxial cable is 237MM~243MM, and the diameter of the coaxial cable is 1.08MM~1.18MM.

[0012] As a further embodiment of this utility model, the length of the circuit board is 60.7MM~61.1MM, and the width of the circuit board is 23MM~23.4MM.

[0013] The beneficial effects of this utility model are as follows: The LORA antenna uses a flexible circuit board as the main board of the antenna. Utilizing the flexible material of the flexible circuit board, deformation under external force will not damage the circuit board structure. Therefore, it is easier to install into the inside of the device, the installation process is more convenient, it can adapt to more installation scenarios, and the compatibility is enhanced. Moreover, the connection between the circuit board, coaxial cable, and radiator is tight, the structural stability is strong, and the way the radiator is set on the circuit board makes the antenna radiation directionality stronger and the radiation effect better. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the LORA antenna.

[0015] Figure 2 This is a diagram showing the antenna return loss of the antenna.

[0016] In the diagram, 1 is the circuit board; 2 is the coaxial cable; 3 is the radiator; 31 is the first radiating circuit; 311 is the opening; 32 is the second radiating circuit; 4 is the first connection point; 5 is the second connection point; 6 is the UV adhesive; and 7 is the terminal. Detailed Implementation

[0017] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples:

[0018] This utility model discloses a LORA antenna, such as Figure 1 and Figure 2As shown, the circuit includes a circuit board 1 and a coaxial cable 2. The circuit board 1 is a flexible circuit board. The front side of the circuit board 1 has a radiator 3, a first connection point 4, and a second connection point 5. One end of the coaxial cable 2 is electrically connected to the first connection point 4. The second connection point 5 is located on the coaxial cable 2 outside the first connection point 4 and realizes the fixed connection between the coaxial cable 2 and the circuit board 1. The radiator 3 is connected to the circuit board 1 through the first connection point 4 and the second connection point 5 respectively.

[0019] It should be noted that the LORA antenna uses a flexible circuit board 1 as its main board. Utilizing the flexible material of the circuit board, deformation under external force will not damage its structure, making it easier to install into the device and simplifying the installation process. After installation, it forms an electrical connection with the signal transmission module within the device via a coaxial cable 2. The radiator 3 transmits or receives signals, thus providing the device with normal wireless transmission functionality. Furthermore, the tight connection between the circuit board 1, coaxial cable 2, and radiator 3, along with the radiator 3's placement on the circuit board 1, enhances the antenna's radiation directionality and improves its radiation effect.

[0020] It should be further noted that the circuit board 1 is a flexible circuit board with electrolytic copper circuitry arranged on one side.

[0021] Among them, the circuit board 1 with single-sided electrolytic copper circuitry has low production cost and is easy to manufacture, which can meet the needs of large-scale LORA antenna production.

[0022] It should be further explained that the radiator 3 includes a first radiation circuit 31 and a second radiation circuit 32. The first radiation circuit 31 is connected to the circuit board 1 through a first connection point 4, and the second radiation circuit 32 is connected to the circuit board 1 through a second connection point 5.

[0023] The first radiating circuit 31 is soldered to the circuit board 1 through the first connection point 4 to form one part of the antenna radiator 3, while the other part of the antenna radiator 3 is soldered to the circuit board 1 through the second connection point 5 via the second radiating circuit 32, thereby forming two antenna radiators 3 on the circuit board 1. The radiation range of the antenna is enhanced, the anti-interference capability of the antenna is strengthened, and the antenna transmission efficiency is improved.

[0024] Specifically, the first radiating circuit 31 is distributed on the surface of the circuit board 1 in a semi-enclosed manner, and an opening 311 is formed on the surface of the circuit board 1; in addition, the second radiating circuit 32 is located on the surface of the circuit board 1 within the opening 311.

[0025] The first radiation circuit 31 is distributed around the circuit board 1, and together with the second radiation circuit 32 located inside the first radiation circuit 31 in a semi-enclosed state, the directionality of the antenna radiation range is stronger, and omnidirectional coverage can be achieved.

[0026] It should be further explained that the portion of the first radiation circuit 31, the second radiation circuit 32, and the coaxial cable 2 located between the first radiation circuit 31 and the second radiation circuit 32 is fixed to the circuit board 1 by UV adhesive 6.

[0027] The first radiating circuit 31, the second radiating circuit 32, and the coaxial cable 2 are tightly connected by the UV adhesive 6, so that the antenna can maintain its structural stability even when subjected to external forces during the installation of the device or during the use of the device, thus maintaining its function of wireless transmission.

[0028] It should be further noted that the other end of the coaxial cable 2 is provided with a terminal 7, the port of the terminal 7 facing downwards and forming an included angle of 30°.

[0029] The antenna is connected to the device via terminal 7. When in active mode, it can generate a circuit distribution effect, forming electromagnetic field radiation. With the port of terminal 7 facing downwards, the antenna forms a radiation coverage area perpendicular to the direction of circuit board 1.

[0030] It should be further noted that the length of the coaxial cable 2 is 237mm to 243mm, and the diameter of the coaxial cable 2 is 1.08mm to 1.18mm. The coaxial cable 2 with the above-mentioned dimensions can make the overall size of the antenna smaller, so as to adapt the antenna to installation and operation in small spaces.

[0031] It should be further noted that the length of the circuit board 1 is 60.7mm to 61.1mm, and the width of the circuit board 1 is 23mm to 23.4mm. By using a small circuit board 1, the overall size of the antenna is reduced, thereby allowing the antenna to be installed in a small device.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A LoRa antenna, comprising a circuit board and a coaxial cable, characterized in that, The circuit board is a flexible circuit board. The front side of the circuit board has a radiator, a first connection point and a second connection point. One end of the coaxial line is electrically connected to the first connection point. The second connection point is located on the coaxial line outside the first connection point and realizes the fixed connection between the coaxial line and the circuit board. The radiator is connected to the circuit board through the first connection point and the second connection point respectively.

2. The LORA antenna according to claim 1, characterized in that, The circuit board is a flexible circuit board with electrolytic copper circuitry arranged on one side.

3. The LORA antenna according to claim 1, characterized in that, The radiator includes a first radiating circuit and a second radiating circuit. The first radiating circuit is connected to the circuit board through a first connection point, and the second radiating circuit is connected to the circuit board through a second connection point.

4. The LORA antenna according to claim 3, characterized in that, The first radiating circuit is distributed on the surface of the circuit board in a semi-enclosed manner, and an opening is formed on the surface of the circuit board.

5. The LORA antenna according to claim 4, characterized in that, The second radiating circuit is located on the surface of the circuit board inside the opening.

6. The LORA antenna according to claim 3, characterized in that, The first radiation circuit, the second radiation circuit, and the portion of the coaxial line located between the first radiation circuit and the second radiation circuit are fixed to the circuit board with UV adhesive.

7. The LORA antenna according to claim 1, characterized in that, The other end of the coaxial cable is provided with a terminal, the port of which faces downward and forms an included angle of 30°.

8. The LORA antenna according to claim 1, characterized in that, The length of the coaxial cable is 237mm to 243mm, and the diameter of the coaxial cable is 1.08mm to 1.18mm.

9. The LORA antenna according to claim 1, characterized in that, The circuit board has a length of 60.7 mm to 61.1 mm and a width of 23 mm to 23.4 mm.

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