Intelligent terminal communication antenna and intelligent terminal

Abstract

The invention provides an intelligent terminal communication antenna assembly and an intelligent terminal. The intelligent terminal communication antenna assembly comprises a circuit substrate, a feeding point, a radiator and a grounding point, wherein the feeding point, the radiator and the grounding point are arranged on the circuit substrate; the circuit substrate is used for being arranged at the edge of a mainboard of the intelligent terminal; the feeding point is used for being electrically connected with a radio frequency link module on a mainboard of the intelligent terminal; the radiator comprises a first end, a radiation section and a second end which are arranged in sequence, and the first end of the radiator is connected with the grounding point; the feeding point is connected with the radiation section and is located between the second end of the radiator and the grounding point; and an antenna clearance area is formed between the second end of the radiator and the circuit substrate. The intelligent terminal communication antenna assembly can be used for wiring on the intelligent terminal mainboard, can be arranged in the intelligent terminal through the circuit substrate, does not occupy external space, is small in occupied space, is adaptive to light and thin equipment, and reduces the cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of antennas, and in particular relates to a smart terminal communication antenna component and a smart terminal. Background Art

[0002] With the development of wireless communication technology, there are more and more types of IoT antennas. Most IoT antennas are in the form of rubber sticks. IoT antennas are usually placed on the outside of IoT devices and fixedly connected to IoT devices through cables and adapters. IoT antennas are mainly based on 433MHz frequency. The efficiency of 433MHz antennas directly affects the actual use effect of customers. For smart terminals with full-screen design, lightweight design has become the mainstream, and the requirements for antenna size are getting smaller and smaller, and even the antennas have to be built into IoT devices. However, the overall environment of full-screen smart terminals has become thinner, the clearance area of ​​the antenna has become smaller, and the structural environment has become complex, which has greatly affected the antenna solution, antenna efficiency, antenna bandwidth, etc. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art and to provide a smart terminal communication antenna assembly that can be used for routing on a smart terminal mainboard and can be built into the interior of the smart terminal through a circuit substrate without occupying external space. The smart terminal communication antenna assembly occupies a small space, is suitable for thin and light devices, and reduces costs.

[0004] The present invention is achieved through the following technical solutions:

[0005] A smart terminal communication antenna assembly comprises a circuit substrate and a feeding point, a radiator and a grounding point arranged on the circuit substrate; the circuit substrate is used to be arranged at the edge of the smart terminal mainboard; the feeding point is used to be electrically connected to a radio frequency link module on the smart terminal mainboard; the radiator comprises a first end, a radiating section and a second end which are arranged in sequence, and the first end of the radiator is connected to the grounding point; the feeding point is connected to the radiating section and is located between the second end of the radiator and the grounding point; an antenna clearance area is formed between the second end of the radiator and the circuit substrate.

[0006] In the smart terminal communication antenna assembly of the present invention, the feeding point, the radiator and the grounding point form the antenna structure of the IFA routing, the radiator generates resonance, the control resonance area is clear, and the adjustment and optimization are convenient and fast; an antenna clearance area is left between the radiator and the antenna substrate, which is beneficial to improving the antenna efficiency; at the same time, the smart terminal communication antenna assembly can be used for routing on the smart terminal mainboard, and can be built into the interior of the smart terminal through the circuit substrate without occupying external space. The smart terminal communication antenna assembly occupies a small space, is suitable for light and thin devices, and reduces costs.

[0007] Furthermore, the circumference of the radiator is one quarter of its resonant wavelength. The length of the radiator is controlled to achieve optimal antenna efficiency.

[0008] Furthermore, the resonant frequency of the radiator is 433 MHz.

[0009] Furthermore, the radiator is in a long strip shape, which is convenient for adjusting the length and has a uniform electric field, so as to facilitate controlling the resonant frequency of the radiator.

[0010] Furthermore, the grounding point is located at the edge of the circuit substrate, and the radiation section of the radiator extends in a direction away from the grounding point and is parallel to the length direction or width direction of the circuit substrate. The radiator is parallel to the length direction or width direction of the circuit substrate so as to be as close to the edge of the smart terminal mainboard as possible and away from other circuit modules on the smart terminal mainboard to avoid interference and improve antenna efficiency.

[0011] Furthermore, the space between the second end of the radiator and the end of the circuit substrate away from the grounding point forms an antenna clearance area, and the length of the antenna clearance area is not less than the length of the radiator. The antenna clearance area is reserved on the circuit substrate to improve the transmission quality and coverage of the radiator.

[0012] The present invention also provides a smart terminal, comprising a smart terminal mainboard and the above-mentioned smart terminal communication antenna assembly; the circuit substrate of the smart terminal communication antenna assembly is arranged at the edge of the smart terminal mainboard; a radio frequency link module is arranged on the smart terminal mainboard; the feeding point of the smart terminal communication antenna assembly is electrically connected to the radio frequency link module; and the grounding point is electrically connected to the smart terminal mainboard.

[0013] In the smart terminal provided by the present invention, the smart terminal communication antenna assembly is built into the smart terminal, and the intelligent circuit substrate is arranged at the edge of the smart terminal mainboard, close to the edge of the smart terminal mainboard to reduce interference from other modules on the smart terminal mainboard, and a clearance area is provided to improve antenna efficiency.

[0014] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the intelligent terminal communication antenna assembly of Example 1.

[0016] Figure 2 It is the S11 parameter diagram of the intelligent terminal communication antenna assembly of Example 1.

[0017] Figure 3 This is a diagram of the antenna efficiency of the smart terminal communication antenna assembly of Example 1.

[0018] Figure 4 It is a schematic diagram of the structure of the intelligent terminal of Example 2. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. It is also necessary to explain that, for ease of description, only parts related to the embodiments of the present invention are shown in the accompanying drawings, rather than all structures.

[0020] In addition, the terms first, second, third, etc. in the specification and claims are only used for the purpose of describing the same technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor necessarily describing the order or time sequence. The terms are interchangeable where appropriate. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0021] Similarly, the terms "fixed" and "connected" used in the specification and claims should not be construed as limited to direct connection. Therefore, the expression "device A is connected to device B" should not be limited to a device or system in which device A is directly connected to device B, but means that there is a path between device A and device B, which may be a path including other devices or tools.

[0022] Example 1

[0023] This embodiment provides a smart terminal communication antenna assembly, Figure 1 This is a schematic diagram of the structure of the intelligent terminal communication antenna component. Figure 1 , the intelligent terminal communication antenna assembly includes a circuit substrate 1 and a feeding point 2, a radiator 3 and a grounding point 4 arranged on the circuit substrate 1;

[0024] The circuit substrate 1 is used to be arranged on the edge of the mainboard of the intelligent terminal;

[0025] Feed point 2 is used to electrically connect to the RF link module on the mainboard of the smart terminal;

[0026] The radiator 3 includes a first end 31, a radiating section 32 and a second end 33 which are arranged in sequence, and the first end 31 of the radiator 3 is connected to the grounding point 4; the feeding point 2 is connected to the radiating section 32 and is located between the second end 33 of the radiator 3 and the grounding point 4;

[0027] An antenna clearance area 6 is formed between the second end 33 of the radiator 3 and the circuit substrate 1 .

[0028] In the smart terminal communication antenna assembly of the present embodiment, the feeding point 2, the radiator 3 and the grounding point 4 form an antenna structure of the IFA routing, the radiator 3 generates resonance, the control resonance area is clear, and the adjustment and optimization are convenient and quick; an antenna clearance area 6 is left between the radiator 3 and the antenna substrate, which is beneficial to improving the antenna efficiency; at the same time, the smart terminal communication antenna assembly can be used for routing on the smart terminal mainboard, and can be built into the inside of the smart terminal through the circuit substrate 1 without occupying external space. The smart terminal communication antenna assembly occupies a small space, is suitable for thin and light devices, and reduces costs.

[0029] In this embodiment, the circumference of the radiator 3 is one quarter of its resonance wavelength. The length of the radiator 3 is controlled to achieve optimal antenna efficiency.

[0030] In this embodiment, the resonant frequency of the radiator 3 is 433 MHz. The radiator 3 has a resonant frequency of 433 MHz, which can perform low power consumption and long distance communication. In one embodiment, the length of the radiator 3 is 110 nm and the width is 20 nm.

[0031] In this embodiment, the radiator 3 is a steel sheet radiator 3, a copper radiator 3, an LDS radiator 3 or a PDS radiator 3. A suitable radiator 3 is selected according to actual communication requirements.

[0032] In this embodiment, the radiator 3 is in a strip shape. The radiator 3 in a strip shape is easy to adjust in length and has a uniform electric field, so as to facilitate the control of the resonant frequency of the radiator 3 .

[0033] See also Figure 1 In this embodiment, the grounding point 4 is located at the edge of the circuit substrate 1, and the radiation section 32 of the radiator 3 extends in a direction away from the grounding point 4 and is parallel to the length direction or width direction of the circuit substrate 1. The radiator 3 is parallel to the length direction or width direction of the circuit substrate 1 to be as close to the edge of the smart terminal mainboard as possible and away from other circuit modules on the smart terminal mainboard to avoid interference and improve antenna efficiency.

[0034] See also Figure 1 In this embodiment, the space between the second end 33 of the radiator 3 and the end of the circuit substrate 1 away from the ground point 4 forms an antenna clearance area 6, and the length of the antenna clearance area 6 is not less than the length of the radiator 3. The antenna clearance area 6 is reserved on the circuit substrate 1 to improve the transmission quality and coverage of the radiator 3.

[0035] The smart terminal communication antenna assembly provided in this embodiment is routed on the smart terminal mainboard through the circuit substrate 1, and the feeding point 2, the radiator 3 and the grounding point 4 form an IFA-type antenna structure. The feeding point 2 is electrically connected to the 433MHz RF link module on the smart terminal mainboard, and the grounding point 4 is electrically connected to the ground terminal on the smart terminal mainboard. The radiator 3 generates a 433MHz resonance, and the radiation efficiency and radiation frequency are optimized by adjusting the length of the radiator 3. The resonance area is clearly controlled and does not need to be occupied separately in the internal space of the smart terminal.

[0036] Figure 2 This is the S11 parameter diagram of the smart terminal communication antenna component, please refer to Figure 2 ,The radiator of the smart terminal communication antenna assembly has a smaller dB value at 433MHz and good impedance matching.

[0037] Figure 3 This is the antenna efficiency diagram of the smart terminal communication antenna component, please refer to Figure 3 ,The smart terminal communication antenna component is located inside the smart terminal and has good antenna efficiency at 433MHz.

[0038] In the smart terminal communication antenna assembly provided in this embodiment, an antenna structure in the form of an IFA is etched on the smart terminal mainboard to route the wires inside the smart terminal communication antenna assembly. Compared with the existing rubber stick antenna, spring antenna or spiral antenna located outside the Internet of Things device, the smart terminal communication antenna assembly of this embodiment can be used inside the Internet of Things device, has good antenna performance at 433MHz, and minimizes the internal space occupied by the smart terminal.

[0039] Example 2

[0040] This embodiment provides a smart terminal. Figure 4 This is a schematic diagram of the structure of the intelligent terminal. Figure 4 , the intelligent terminal includes an intelligent terminal mainboard 5 and an intelligent terminal communication antenna assembly of embodiment 1; the circuit substrate 1 of the intelligent terminal communication antenna assembly is arranged at the edge of the intelligent terminal mainboard 5; the intelligent terminal mainboard 5 is provided with a radio frequency link module;

[0041] The feeding point 2 of the intelligent terminal communication antenna assembly is electrically connected to the radio frequency link module; the grounding point 4 is electrically connected to the intelligent terminal mainboard 5.

[0042] In the smart terminal provided in this embodiment, the smart terminal communication antenna assembly is built into the smart terminal, and the smart circuit substrate 1 is arranged at the edge of the smart terminal mainboard 5, close to the edge of the smart terminal mainboard 5, to reduce interference from other modules on the smart terminal mainboard 5, and a clearance area is provided to improve antenna efficiency.

[0043] In this embodiment, the intelligent terminal may be a scanner, an electric meter, an ETC instrument or an intelligent container, etc.

[0044] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A smart terminal communication antenna assembly, characterized in that: It includes a circuit substrate and a feeding point, a radiator and a grounding point arranged on the circuit substrate; The circuit substrate is used to be arranged on the edge of the smart terminal mainboard; The feeding point is used to be electrically connected to the radio frequency link module on the mainboard of the intelligent terminal; The radiator comprises a first end, a radiating section and a second end which are arranged in sequence, the first end of the radiator being connected to the grounding point; the feeding point being connected to the radiating section and being located between the second end of the radiator and the grounding point; An antenna clearance area is formed between the second end of the radiator and the circuit substrate; The radiator is a steel sheet radiator, a copper radiator, an LDS radiator or a PDS radiator.

2. The intelligent terminal communication antenna assembly according to claim 1, characterized in that: The circumference of the radiator is one quarter of its resonant wavelength.

3. The intelligent terminal communication antenna assembly according to claim 2, characterized in that: The resonant frequency of the radiator is 433 MHz.

4. The intelligent terminal communication antenna assembly according to claim 1, characterized in that: The antenna radiator is in a long strip shape.

5. The intelligent terminal communication antenna assembly according to claim 1, characterized in that: The grounding point is located at an edge of the circuit substrate, and the radiating section of the radiator extends in a direction away from the grounding point and is parallel to a length direction or a width direction of the circuit substrate.

6. The intelligent terminal communication antenna assembly according to claim 5, characterized in that: The space between the second end of the radiator and the end of the circuit substrate away from the grounding point forms an antenna clearance area, and the length of the antenna clearance area is not less than the length of the radiator.

7. An intelligent terminal, characterized in that: It comprises a smart terminal mainboard and the smart terminal communication antenna assembly according to any one of claims 1 to 6; the circuit substrate of the smart terminal communication antenna assembly is arranged at the edge of the smart terminal mainboard; The intelligent terminal mainboard is provided with a radio frequency link module; The feeding point of the smart terminal communication antenna assembly is electrically connected to the radio frequency link module; and the grounding point is electrically connected to the smart terminal mainboard.

Images