5G antenna structure

Abstract

The utility model provides a 5G antenna structure, and belongs to the field of antenna structures. The 5G antenna structure comprises an antenna PCB and a circuit structure arranged on the front face of the antenna PCB, the circuit structure comprises a bandwidth control ring, an antenna oscillator upper arm and an antenna oscillator lower arm, the antenna oscillator upper arm and the antenna oscillator lower arm are arranged on the periphery of the bandwidth control ring, the bandwidth control ring is arranged at one end of the antenna PCB, and the bandwidth control ring is arranged at the other end of the antenna PCB. One end of the antenna PCB is provided with a bandwidth control loop, the other end of the bandwidth control loop facing the antenna PCB is provided with a segmentation gap, the antenna oscillator upper arm and the antenna oscillator lower arm are respectively arranged at two sides of the segmentation gap, the antenna oscillator upper arm is provided with a ground feeding welding point, and the antenna oscillator lower arm is provided with a ground feeding welding point matched with the ground feeding point. The beneficial effect of the utility model is that the bandwidth of the antenna can be adjusted more conveniently in a limited space.

Description

Technical Field

[0001] The utility model relates to the field of antenna structures, and in particular to a 5G antenna structure. Background Art

[0002] With the widespread adoption of 5G networks, various network devices will be equipped with 5G antennas. 5G antennas enable faster data transmission, meeting the communication needs of these devices. The operating bandwidth of an antenna, also known as bandwidth, refers to the amount of data that can be transmitted in a given period of time, or the ability to pass data through a transmission channel. 5G antennas have even higher bandwidth requirements.

[0003] CPE, short for Customer Premises Equipment, refers to equipment located at the end-user's premises, typically providing telephones or other services. Common examples include telephones, cable TV set-top boxes, and Digital Subscriber Line (DSL) routers. Due to communication requirements, CPE devices typically include multiple antennas, one of which is the onboard 5G antenna. To improve isolation, existing CPE devices typically place antennas as far apart as possible within the CPE. Consequently, there are minimal requirements for antenna structure. However, with the miniaturization and integration of antenna structures, reducing antenna size and achieving higher bandwidth within limited space are key considerations. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a 5G antenna structure.

[0005] The present utility model provides a 5G antenna structure, including an antenna PCB board and a circuit structure arranged on the front side of the antenna PCB board. The circuit structure includes a bandwidth control ring, an antenna vibrator upper arm and an antenna vibrator lower arm arranged on the periphery of the bandwidth control ring. The bandwidth control ring is arranged at one end of the antenna PCB board, and the bandwidth control ring is provided with a dividing gap toward the other end of the antenna PCB board. The antenna vibrator upper arm and the antenna vibrator lower arm are respectively arranged on both sides of the dividing gap. The antenna vibrator upper arm is provided with a ground feeding solder point, and the antenna vibrator lower arm is provided with a feeding solder point that cooperates with the feeding ground.

[0006] Furthermore, the ground feed welding point is arranged at the bottom of the upper arm of the antenna element close to the dividing gap and adjacent to the bandwidth control ring.

[0007] Furthermore, the upper arm of the antenna element is provided with a first groove near the ground feeding solder point, the lower arm of the antenna element is provided with a protrusion passing through the dividing gap and extending into the groove, and the feeding solder point is arranged on the protrusion.

[0008] Furthermore, the width of the dividing gap gradually increases toward the other end of the antenna PCB board away from the bandwidth control loop. An antenna frequency control block is also provided at the end of the antenna PCB board and at a set distance from the end of the lower arm of the antenna vibrator. The antenna frequency control block is connected to the lower arm of the antenna vibrator.

[0009] Furthermore, the other end of the antenna PCB board away from the bandwidth control ring is provided with a plug-in end for fixing the 5G antenna structure, and the tail end of the antenna frequency control block is arranged in the plug-in end.

[0010] Furthermore, a blank block is provided at the end of the upper arm of the antenna element and is spaced a certain distance away from the antenna frequency control block.

[0011] Furthermore, the PCB board has a width of 25-35 mm and a length of 85-95 mm, wherein the length of the plug end is 13-18 mm.

[0012] Furthermore, the PCB board has a width of 30 mm and a length of 90.6 mm.

[0013] Furthermore, an anti-oxidation layer is provided on the upper surfaces of the power feeding solder joint and the ground feeding solder joint.

[0014] Compared with the prior art, the beneficial effect of the present invention is as follows: by setting a bandwidth control loop at one end of the PCB board, the length and width of the loop are equivalent to loading an inductor on the 5G antenna structure, and the size of the blank space inside the bandwidth control loop is equivalent to adding a capacitor to the 5G antenna structure, thereby more conveniently controlling the bandwidth of the antenna. Therefore, the present invention can more conveniently adjust the bandwidth of the antenna in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the 5G antenna structure;

[0017] Figure 2 This is a diagram showing the antenna gain test results for a 5G antenna in the 1700MHz-2700MHz frequency band.

[0018] Figure 3 This is the directional pattern of the 5G antenna in the 1700MHz-2700MHz frequency band;

[0019] Figure 4 This is a diagram showing the antenna gain test results for a 5G antenna in the 300MHz-5000MHz frequency band.

[0020] Figure 5 This is the directional pattern of the 5G antenna in the 300MHz-5000MHz frequency band. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meanings as commonly understood by those skilled in the art to which this utility model belongs. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The terms "including" and "having" and any variations thereof in the specification and claims of this utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this utility model or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] References to "embodiments" in this disclosure mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to mutually exclusive, independent, or alternative embodiments to other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this disclosure may be combined with other embodiments.

[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the 5G antenna structure of the present invention is a single-sided design, including an antenna PCB board, a circuit structure arranged on the front side of the antenna PCB board, the circuit structure including a bandwidth control ring 101, an antenna vibrator upper arm 102 and an antenna vibrator lower arm 103 arranged on the periphery of the bandwidth control ring 101, the bandwidth control ring 101 is arranged at one end of the antenna PCB board, and a dividing gap 107 is provided on the other end of the bandwidth control ring toward the antenna PCB board, and the antenna vibrator upper arm 102 and the antenna vibrator lower arm 103 are respectively arranged on both sides of the dividing gap 107.

[0025] In this example, the ground feed solder point 105 is arranged at the bottom of the upper arm 102 of the antenna element near the dividing gap 107, adjacent to the bandwidth control ring 101. The upper arm 102 of the antenna element is provided with a first groove near the ground feed solder point 105, and the lower arm of the antenna element is provided with a protrusion that passes through the dividing gap 107 and extends into the groove, and the feeding solder point 106 is arranged on the protrusion.

[0026] Preferably, an anti-oxidation layer is provided on the upper surfaces of the power feeding solder joint 106 and the ground feeding solder joint 105 in this example, so as to ensure the stability of welding.

[0027] In this example, the bandwidth control loop 101 is set. The length and width of the outer ring of the bandwidth control loop 101 are equivalent to loading an inductor on the antenna, and the size of the blank space inside the bandwidth control loop 101 is equivalent to loading a capacitor on the antenna. The combination of the two forms an "LC" circuit, which controls the bandwidth of the antenna, thereby making the bandwidth adjustment of the utility model more convenient and efficient.

[0028] Preferably, in this example, the width of the dividing gap gradually increases toward 107 toward the other end of the antenna PCB board. An antenna frequency control block 104 is also provided at the end of the antenna PCB board and at a set distance from the end of the lower arm 103 of the antenna vibrator. The antenna frequency control block 104 is connected to the lower arm 103 of the antenna vibrator, and a blank block 108 is provided at the end of the upper arm 102 of the antenna vibrator at a certain distance from the antenna frequency control block 104.

[0029] The antenna PCB in this example is provided with a plug-in terminal for securing the 5G antenna structure at the other end of the PCB, away from the bandwidth control ring 101. The tail end of the antenna frequency control block 104 is disposed within this plug-in terminal, making the structure of the present invention more compact and facilitating antenna miniaturization. The PCB in this example has a width of 25-35 mm, a length of 85-95 mm, and a thickness of 1.2 mm. The length of the plug-in terminal is 13-18 mm. Preferably, the PCB in this example has a width of 30 mm and a length of 90.6 mm.

[0030] Although the present invention can achieve wide bandwidth operation by setting the bandwidth control loop 101, if the 5G antenna wants to achieve miniaturization of the antenna structure, it is difficult to meet the requirements by simply adjusting the bandwidth control loop 101 and the antenna frequency control block 4. The present invention optimizes the structure of the antenna vibrator upper arm 102 and the antenna vibrator lower arm 103, and sets a blank block 108, which plays a vital role in the coupling of the present invention. It can achieve more convenient and fast coupling under wide bandwidth, effectively reduce the size of the antenna PCB board, and make the bandwidth of the present invention reach 3.5GHz when the operating frequency is in the range of 2000~5500MHz.

[0031] Experimental verification

[0032] This utility model was used in a darkroom and a 5701B network analyzer to conduct 3D passive efficiency testing on a 5G antenna structure, measuring the antenna's gain and directionality. The experimental results demonstrate the superior performance of this utility model. Antenna gain is the ratio of the power density of the signal generated by an actual antenna to that of an ideal radiating element at the same point in space, given equal input power. It quantitatively describes the degree to which an antenna concentrates input power and measures its ability to transmit and receive signals in a specific direction. It is one of the most important parameters for selecting an antenna.

[0033] The operating frequency of the 5G antenna of this utility model is 3300~5000MHz. This utility model selects the low frequency band 1700MHz~2700MHz and the high frequency band 2000~5500MHz at both ends of the operating frequency for testing. Figure 2 and Figure 3 As shown in the figure, in the low frequency band, the gain Gain is in the range of 0 to 3dB. At the frequency of 1700MHz, the signal pattern tends to be circular, indicating that the performance of the 5G antenna of the utility model is good and the relative field strength of the radiation field is relatively good in all directions. Figure 4 and Figure 5 As shown, the gain of the present invention is in the range of -1.00 to 6dB in the high frequency band of 3300 to 5000MHz, and at a frequency of 3300, the signal direction also fully meets the performance requirements.

[0034] The specific implementation methods described above are preferred implementation methods of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A 5G antenna structure, characterized by: The invention comprises an antenna PCB board and a circuit structure arranged on the front side of the antenna PCB board. The circuit structure comprises a bandwidth control loop, an upper arm of an antenna vibrator and a lower arm of an antenna vibrator arranged on the periphery of the bandwidth control loop. The bandwidth control ring is arranged at one end of the antenna PCB board, and a dividing gap is provided on the bandwidth control ring toward the other end of the antenna PCB board. The upper arm of the antenna vibrator and the lower arm of the antenna vibrator are respectively arranged on both sides of the dividing gap. The upper arm of the antenna vibrator is provided with a ground feed solder point, and the lower arm of the antenna vibrator is provided with a power feed solder point cooperating with the ground feed solder point.

2. The 5G antenna structure according to claim 1, wherein: The ground feed welding point is arranged at the bottom of the upper arm of the antenna element close to the dividing gap and is adjacent to the bandwidth control ring.

3. The 5G antenna structure according to claim 2, wherein: The upper arm of the antenna element is provided with a first groove near the ground feeding soldering point, the lower arm of the antenna element is provided with a protrusion passing through the dividing gap and extending into the groove, and the feeding soldering point is provided on the protrusion.

4. The 5G antenna structure according to claim 1, wherein: The width of the dividing gap gradually increases toward the other end of the antenna PCB board away from the bandwidth control ring. An antenna frequency control block is also provided at the end of the antenna PCB board and at a set distance from the end of the lower arm of the antenna element. The antenna frequency control block is connected to the lower arm of the antenna element.

5. The 5G antenna structure according to claim 4, wherein: The other end of the antenna PCB board away from the bandwidth control ring is provided with a plug-in end for fixing the 5G antenna structure, and the tail end of the antenna frequency control block is arranged in the plug-in end.

6. The 5G antenna structure according to claim 5, wherein: A blank block is provided at the end of the upper arm of the antenna element and is spaced a certain distance away from the antenna frequency control block.

7. The 5G antenna structure according to claim 5, wherein: The PCB board has a width of 25-35 mm and a length of 85-95 mm, wherein the length of the plug end is 13-18 mm.

8. The 5G antenna structure according to claim 7, wherein: The PCB board has a width of 30 mm and a length of 90.6 mm.

9. The 5G antenna structure according to any one of claims 1 to 5, characterized in that: An anti-oxidation layer is provided on the upper surfaces of the power feeding solder joint and the ground feeding solder joint.

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