Antenna of Internet of Things equipment and Internet of Things equipment

Abstract

The utility model provides an antenna of an internet of things device and the internet of things device. The antenna of the internet of things device comprises a feed end, a steel sheet radiator and a grounding end which are connected in sequence. The feed end is used for being connected with a PCB (Printed Circuit Board); the grounding end is used for being connected with a PCB (Printed Circuit Board); the two ends of the steel sheet radiator are vertically connected to the feed end and the grounding end respectively. The antenna of the Internet of Things equipment provided by the utility model can be arranged inside the Internet of Things equipment, the space structure is fully utilized, the antenna is used under the condition that the internal clearance of the Internet of Things equipment is limited, and the steel sheet radiator is arranged far away from the PCB, so that the antenna is far away from the interference of the PCB and the efficiency of the antenna is improved.

Description

Technical Field

[0001] This utility model belongs to the field of antenna technology, specifically relating to an antenna for an Internet of Things (IoT) device and the IoT device itself. Background Technology

[0002] Most current IoT devices use spiral antennas, typically placed externally and connected via cables and adapters, resulting in relatively large device sizes. With technological advancements, thinner and lighter IoT devices are becoming the trend. Antenna efficiency directly impacts user experience; however, thinner devices lead to smaller antenna clearances, more complex internal structures, and negatively affect antenna efficiency and bandwidth. Therefore, placing the antenna internally while minimizing its size has become a significant challenge in antenna design. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies in the prior art and provide an antenna for Internet of Things (IoT) devices that can be installed inside IoT devices, making full use of the space structure and being used when the internal clearance of IoT devices is limited. The steel sheet radiator is set away from the PCB board, thereby avoiding interference from the PCB board and improving antenna efficiency.

[0004] This utility model is achieved through the following technical solution:

[0005] An antenna for an Internet of Things (IoT) device includes a feed terminal, a steel radiator, and a ground terminal connected in sequence; the feed terminal is used to connect to a PCB board; the ground terminal is used to connect to the PCB board; and the two ends of the steel radiator are respectively perpendicularly connected to the feed terminal and the ground terminal.

[0006] In the antenna of the IoT device provided by this utility model, the feed end, the steel radiator, and the ground end are connected sequentially to form a loop. The steel radiator resonates to achieve communication, and the resonant region is clearly defined. The two ends of the steel radiator are perpendicularly connected to the feed end and the ground end, respectively. The steel radiator is located on a different plane from the feed end and the ground end, which helps to increase the clearance height and improve antenna efficiency. The antenna of this utility model can be installed inside the IoT device, making full use of the space structure. It can be used when the internal clearance of the IoT device is limited. The steel radiator is positioned away from the PCB board, thereby avoiding interference from the PCB board and improving antenna efficiency.

[0007] Furthermore, the steel sheet radiator has a first vertical section and a second vertical section at each end; the feed end is connected to the steel sheet radiator through the first vertical section, which is perpendicular to the feed end; the ground end is connected to the steel sheet radiator through the second vertical section, which is perpendicular to the ground end; the first vertical section and the second vertical section have the same height. The connection of the feed end to the steel sheet radiator through the first vertical section and the ground end to the steel sheet radiator through the second vertical section, with the first and second vertical sections at the same height, ensures the steel sheet radiator is horizontal, controlling its shape to maintain uniform antenna radiation and facilitating a clear resonant region.

[0008] Furthermore, the height of the first vertical section is not less than 5mm; the height of the second vertical section is not less than 5mm. Controlling the height of the first and second vertical sections ensures that the steel sheet radiator is positioned away from the PCB board, which helps to increase the clearance and improve antenna efficiency.

[0009] Furthermore, the length of the steel sheet radiator is half of its operating wavelength.

[0010] Furthermore, the resonant frequency of the steel sheet radiator is 700MHz-2700GHz. By controlling the resonant frequency through the length of the steel sheet radiator, full-band communication across the entire network can be achieved.

[0011] Furthermore, the antenna of the IoT device also includes an antenna tuner, with the feed terminal and the PCB board respectively connected to the antenna tuner. The resonant frequency is adjusted by the antenna tuner to achieve resonance of the steel sheet radiator in different frequency bands.

[0012] Furthermore, the steel sheet radiator is elongated.

[0013] This utility model also provides an Internet of Things (IoT) device, including a housing, a PCB board, and an antenna for the IoT device described above; the PCB board and the antenna are disposed inside the housing; the power supply terminal is connected to the PCB board; and the grounding terminal is connected to the PCB board.

[0014] In the IoT device provided by this utility model, the PCB board and antenna are set inside the housing, and communication is achieved by generating resonance through the steel sheet radiator, which saves the space of the whole device and does not occupy the external space of the communication device separately.

[0015] Furthermore, the antenna is located at the end of the PCB board, and the feed terminal and the ground terminal are on the same plane as the PCB board. Connecting the antenna's feed terminal and ground terminal to the end of the PCB board avoids excessive use of the PCB board area, fully utilizes the space structure, and keeps the steel radiator away from the PCB board to avoid interference.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the antenna structure of an Internet of Things (IoT) device.

[0018] Figure 2 This is the S11 parameter diagram of the antenna of an IoT device.

[0019] Figure 3 This is an antenna efficiency diagram for IoT devices.

[0020] Figure 4 This is a structural diagram of an Internet of Things (IoT) device.

[0021] Figure 5 This is a schematic diagram of the antenna connection for an IoT device. Detailed Implementation

[0022] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the embodiments of the present invention, and not all of the structures.

[0023] Similarly, the terms "fixed" and "connected" are used in the specification and claims and should not be construed as limited to a direct connection. Therefore, the expression "device A is connected to device B" should not be limited to device A being directly connected to device B in a device or system; it means that there is a path between device A and device B, which can be a path that includes other devices or tools.

[0024] Example 1

[0025] This embodiment provides an antenna for an Internet of Things (IoT) device. Figure 1 This is a schematic diagram of the antenna structure of an IoT device. Please refer to [link / reference]. Figure 1 The antenna of the IoT device includes a feed terminal 1, a steel radiator 3 and a ground terminal 5 connected in sequence; the feed terminal 1 is used to connect to the PCB board 7; the ground terminal 5 is used to connect to the PCB board 7; the two ends of the steel radiator 3 are respectively vertically connected to the feed terminal 1 and the ground terminal 5.

[0026] In the antenna of the IoT device provided in this embodiment, the feed terminal 1, the steel radiator 3, and the ground terminal 5 are connected sequentially to form a loop. The steel radiator 3 resonates to achieve communication, and the resonant region is clearly defined. The two ends of the steel radiator 3 are vertically connected to the feed terminal 1 and the ground terminal 5, respectively. The steel radiator 3 is located on a different plane from the feed terminal 1 and the ground terminal 5, which helps to increase the clearance height and improve antenna efficiency. The antenna of the IoT device in this embodiment can be installed inside the IoT device, making full use of the space structure. It can be used when the clearance inside the IoT device is limited. The steel radiator 3 is set away from the PCB board 7, thereby avoiding interference from the PCB board 7 and improving antenna efficiency.

[0027] Please see Figure 1 In this embodiment, the steel sheet radiator 3 has a first vertical section 2 and a second vertical section 4 at both ends. The feed end 1 is connected to the steel sheet radiator 3 through the first vertical section 2, which is perpendicular to the feed end 1. The ground end 5 is connected to the steel sheet radiator 3 through the second vertical section 4, which is perpendicular to the ground end 5. The first vertical section 2 and the second vertical section 4 have the same height. The connection between the feed end 1 and the steel sheet radiator 3 via the first vertical section 2, and the connection between the ground end 5 and the second vertical section 4, with the same height, ensures that the steel sheet radiator 3 is horizontal. This controls the shape of the steel sheet radiator 3 to maintain uniform antenna radiation and facilitates a clear resonant region.

[0028] In this embodiment, the height of the first vertical segment 2 is not less than 5mm; the height of the second vertical segment 4 is not less than 5mm. Controlling the height of the first vertical segment 2 and the second vertical segment 4 allows the steel sheet radiator 3 to be positioned away from the PCB board 7, which helps to increase the clearance and improve antenna efficiency.

[0029] In this embodiment, the length of the steel sheet radiator 3 is half of its operating wavelength.

[0030] In this embodiment, the resonant frequency of the steel sheet radiator 3 is 700MHz-2700GHz. By controlling the resonant frequency through the length of the steel sheet radiator 3, full-band communication can be achieved.

[0031] In one embodiment, the length of the steel sheet radiator 3 corresponds to a wavelength of 800 MHz.

[0032] In this embodiment, the antenna of the IoT device also includes an antenna tuner (not shown), and the feed terminal 1 and the PCB board 7 are respectively connected to the antenna tuner. The resonant frequency is adjusted by the antenna tuner to achieve resonance of the steel sheet radiator 3 in different frequency bands.

[0033] Please see Figure 1In this embodiment, the steel sheet radiator 3 is elongated. The elongated shape of the steel sheet radiator 3 is uniform, which helps to control the uniformity of radiation intensity throughout the device and facilitates installation in complex environments within IoT devices. In another embodiment, the steel sheet radiator 3 is bent to reduce its volume.

[0034] In one embodiment, the steel sheet radiator 3 has a length of 38 mm and a width of 8.5 mm, and the height of the first vertical section 2 and the second vertical section 4 is 14 mm, so that the steel sheet radiator 3 is set away from the PCB board 7 to ensure sufficient clearance, and the length and width of the steel sheet radiator 3 are adjusted according to the actual operating frequency band.

[0035] Figure 2 This is the S11 parameter diagram for the antenna of the IoT device. Please refer to [link / reference]. Figure 2 The antennas of IoT devices form a continuous radiation frequency band of 700-2700MHz, supporting mainstream frequency bands such as 2G, 4G, and 5G to achieve full network communication. They also have small dB values ​​at 880MHz, 1.4GHz, 2.4GHz, 2.5GHz, and 2.69GHz, with good impedance matching.

[0036] Figure 3 This is an antenna efficiency diagram for IoT devices. Please refer to [link / reference]. Figure 3 The antennas of IoT devices form a continuous radiation band in the 700-2700MHz range and have good antenna efficiency.

[0037] Example 2

[0038] This embodiment provides an Internet of Things (IoT) device. Figure 4 This is a structural diagram of an Internet of Things (IoT) device. Figure 5 This is a diagram illustrating the antenna connection of an IoT device. Please refer to it. Figure 4-5 The IoT device includes a housing 6, a PCB board 7, and the antenna of the IoT device mentioned above; the PCB board 7 and the antenna are disposed inside the housing 6; the power supply terminal 1 is connected to the PCB board 7; and the grounding terminal 5 is connected to the PCB board 7.

[0039] In the IoT device of this embodiment, the PCB board 7 and the antenna are located inside the housing 6, and communication is achieved by generating resonance through the steel sheet radiator 3, which saves the space of the whole device and does not occupy the external space of the communication device separately.

[0040] IoT devices can include scanners, electricity meters, ETC devices, smart vending machines, etc.

[0041] Please see Figure 4-5In this embodiment, the antenna is located at the end of the PCB board 7, and the feed terminal 1 and the ground terminal 5 are located on the same plane as the PCB board 7. The feed terminal 1 and the ground terminal 5 of the antenna are connected to the end of the PCB board 7, which avoids occupying too much area of ​​the PCB board 7, which is conducive to making full use of the space structure, simplifying the design of the internal space, and keeping the steel sheet radiator 3 away from the PCB board 7 to avoid interference.

[0042] Please see Figure 4-5 In one embodiment, a mounting plate 8 is fixed to the end of the PCB board 7, and the end face of the mounting plate 8 is flush with the end face of the PCB board 7; a power supply terminal 1 and a ground terminal 5 are disposed on the mounting plate 8; the PCB board 7 is provided with a power supply point and a ground point, the power supply terminal 1 is connected to the power supply pad of the power supply point, and the ground terminal 5 is connected to the ground pad of the ground point. It should be noted that the PCB board 7 shown in the figure is only a partial structure of the PCB board 7, and other parts of the PCB board 7 and electronic components are not shown.

[0043] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. An antenna for an Internet of Things (IoT) device, characterized in that: It includes a power supply terminal, a steel sheet radiator, and a grounding terminal connected in sequence; the power supply terminal is used to connect to the PCB board; the grounding terminal is used to connect to the PCB board. The steel sheet radiator has a first vertical section and a second vertical section at both ends; The power supply end is connected to the steel sheet radiator through the first vertical section, and the first vertical section is perpendicular to the power supply end; The grounding terminal is connected to the steel sheet radiator through the second vertical section, and the second vertical section is perpendicular to the grounding terminal; The first vertical segment and the second vertical segment have the same height.

2. The antenna of the Internet of Things device according to claim 1, characterized in that: The height of the first vertical segment is not less than 5mm; the height of the second vertical segment is not less than 5mm.

3. The antenna of the Internet of Things device according to claim 1, characterized in that: The length of the steel sheet radiator is half of its operating wavelength.

4. The antenna of the Internet of Things device according to claim 3, characterized in that: The resonant frequency of the steel sheet radiator is 700MHz-2700GHz.

5. The antenna of the Internet of Things device according to claim 4, characterized in that: It also includes an antenna tuner, with the feed terminal and the PCB board respectively connected to the antenna tuner.

6. The antenna of the Internet of Things device according to claim 5, characterized in that: The steel sheet radiator is elongated.

7. An Internet of Things (IoT) device, characterized in that: The device includes a housing, a PCB board, and an antenna for the Internet of Things (IoT) device according to any one of claims 1-6; the PCB board and the antenna are disposed within the housing; the power supply terminal is connected to the PCB board; and the grounding terminal is connected to the PCB board.

8. The Internet of Things device according to claim 7, characterized in that: The antenna is located at the end of the PCB board, and the feed terminal and the ground terminal are located on the same plane as the PCB board.

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