A 5GNR suction cup ultra-wideband antenna with PCB structure

Abstract

The present invention relates to the field of wireless communication technology, and specifically to a 5GNR suction cup ultra-wideband antenna with a PCB structure, comprising a base, a coaxial line and a radio frequency connector; a PCB vibrator is arranged in the base; a cover is arranged at the bottom of the base; a magnet is connected to the cover; one end of the coaxial line is connected to the radio frequency connector; the other end of the coaxial line protrudes into the base; the braided layer at the other end of the coaxial line is connected to the cover; and the wire core layer at the other end of the coaxial line is connected to the PCB vibrator. The present invention realizes a high-efficiency wide-band antenna by simplifying the traditional suction cup structure and designing a PCB coupling vibrator. The frequency band range may include 690‑960MHz and 1700‑3800MHz, covering the frequency bands of 2G / 3G / 4G / NB‑iot / WIFI and 5GNR, etc., and has the advantages of simple structure, low cost, wide band and high efficiency.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a 5GNR suction cup ultra-wideband antenna with a PCB structure. Background Art

[0002] With the advent of the 5G communication era, the Internet of Things (IoT) has become an important component of 5G communication. The Internet of Things (IOT) refers to the ubiquitous terminal devices (Devices) and facilities (Facilities), including sensors, mobile terminals, industrial systems, building control systems, home smart facilities, video surveillance systems, etc. with "intrinsic intelligence", and "external enablement" (Enabled), such as various assets (Assets) with RFID, individuals and vehicles carrying wireless terminals, etc. "intelligent objects or animals" or "intelligent dust" (Mote), connected to the IoT domain name through various wireless and / or wired long-distance and / or short-distance communication networks to achieve interconnection (M2M), application integration (Grand Integration), and cloud computing-based SaaS operation modes, in the Intranet, Extranet, and / or Internet environment, adopt appropriate information security mechanisms to provide safe, controllable and even personalized real-time online monitoring, location tracing, alarm linkage, dispatch command, plan management, remote control, security prevention, remote maintenance, online upgrades, statistical reports, decision support, leadership desktop (centrally displayed Cockpit Dashboard) and other management and service functions, to achieve the integration of "management, control and operation" of "everything" with "efficiency, energy saving, safety and environmental protection". The Internet of Things will be widely used in smart manufacturing, smart agriculture, smart retail, smart security, smart buildings, smart homes, smart medical care, smart energy, smart transportation and smart logistics.

[0003] The common antenna for IoT devices is the suction cup antenna. The suction cup antennas currently on the market have the following disadvantages:

[0004] 1. Narrow frequency band: Many suction cup antennas on the market claim to support full frequency bands, and the measured impedance bandwidth can also meet the requirements. However, in fact, its broadband characteristics are not formed by the antenna itself, but by the attenuation caused by the long antenna feed line (generally about 3 to 5 meters in length). In other words, its radiation efficiency is not high.

[0005] 2. Large size: The size of the popular full-band suction cup antenna on the market is mostly over 300mm, which greatly limits its stability when adsorbed on the equipment and its usage space.

[0006] 3. Complex structure and high cost: Most of the popular suction cup antennas on the market adopt a two-piece split structure, which includes a suction cup part and a vibrator part, and the suction cup and the vibrator are connected by a connecting column. Its processing technology is complex and the material cost is also very high. Summary of the invention

[0007] The purpose of the present invention is to provide a 5GNR suction cup ultra-wideband antenna with a PCB structure in view of the above-mentioned deficiencies in the prior art.

[0008] The objective of the present invention is achieved through the following technical scheme: a 5GNR suction cup ultra-wideband antenna with a PCB structure, comprising a base, a coaxial line and a radio frequency connector; a PCB vibrator is arranged in the base; a cover body is arranged at the bottom of the base; a magnet is connected to the cover body; one end of the coaxial line is connected to the radio frequency connector; the other end of the coaxial line protrudes into the base; the braided layer at the other end of the coaxial line is connected to the cover body; and the core layer at the other end of the coaxial line is connected to the PCB vibrator.

[0009] The present invention is further configured such that the magnet is arranged at the bottom of the cover body; and a sticker is arranged below the magnet.

[0010] The present invention is further configured such that the base is a horn-shaped plastic part.

[0011] The present invention is further configured such that the edge of the cover body and the braided layer at the other end of the coaxial line are embedded in the base.

[0012] The present invention is further configured such that the PCB vibrator includes a PCB board; a resonant branch, a coupling circuit and a soldering pad are provided on the PCB board; the resonant branch and the core layer at the other end of the coaxial line are both connected to the soldering pad.

[0013] The present invention is further configured such that the resonant branches include high-frequency resonant branches, medium-frequency resonant branches and low-frequency resonant branches; the high-frequency resonant branches, medium-frequency resonant branches and low-frequency resonant branches are respectively connected to the welding pads; the high-frequency resonant branches are arranged in the medium-frequency resonant branches; the medium-frequency resonant branches are arranged in the low-frequency resonant branches; the high-frequency resonant branches and medium-frequency resonant branches are spaced apart; the medium-frequency resonant branches and low-frequency resonant branches are spaced apart.

[0014] The present invention is further configured such that the high-frequency resonance branch is in a straight line shape; and the intermediate-frequency resonance branch and the low-frequency resonance branch are both in an L-shape.

[0015] The present invention is further configured such that the coupling circuit includes a first coupling circuit, a second coupling circuit and a third coupling circuit; the first coupling circuit is arranged on a side of the low-frequency resonance branch away from the intermediate-frequency resonance branch; the first coupling circuit is arranged at an interval with the low-frequency resonance branch;

[0016] The second coupling line is arranged between the intermediate frequency resonance branch and the high frequency resonance branch; the second coupling line is arranged at intervals from the intermediate frequency resonance branch and the high frequency resonance branch respectively;

[0017] The third coupling line is arranged at the top of the low-frequency resonance branch; the third coupling line and the low-frequency resonance branch are arranged at intervals.

[0018] Beneficial effects of the invention: The invention realizes a high-efficiency wide-band antenna by simplifying the traditional suction cup structure and designing a PCB coupling vibrator. The frequency band range may include 690-960MHz and 1700-3800MHz, covering 2G / 3G / 4G / NB-iot / WIFI and 5GNR frequency bands, and has the advantages of simple structure, low cost, wide bandwidth and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the PCB vibrator of the present invention;

[0022] Among them: 1. base; 2. coaxial line; 21. braided layer; 22. core layer; 3. RF connector; 4. PCB vibrator; 41. PCB board; 42. soldering pad; 5. cover; 51. magnet; 6. sticker; 71. high-frequency resonant branch; 72. medium-frequency resonant branch; 73. low-frequency resonant branch; 81. first coupling circuit; 82. second coupling circuit; 83. third coupling circuit. DETAILED DESCRIPTION

[0023] The present invention is further described in conjunction with the following examples.

[0024] Depend on Figure 1 to Figure 2 It can be seen that the 5GNR suction cup ultra-wideband antenna with a PCB structure described in this embodiment includes a base 1, a coaxial line 2 and a radio frequency connector 3; a PCB vibrator 4 is provided in the base 1; a cover body 5 is provided at the bottom of the base 1; the cover body 5 is connected to a magnet 51; one end of the coaxial line 2 is connected to the radio frequency connector 3; the other end of the coaxial line 2 protrudes into the base 1; the braided layer 21 at the other end of the coaxial line 2 is connected to the cover body 5; the core layer 22 at the other end of the coaxial line 2 is connected to the PCB vibrator 4.

[0025] Specifically, the 5GNR suction cup ultra-wideband antenna with a PCB structure described in this embodiment realizes a high-efficiency wide-band antenna by simplifying the traditional suction cup structure and designing a PCB coupling vibrator. Its frequency band range may include 690-960MHz and 1700-3800MHz, covering frequency bands such as 2G / 3G / 4G / NB-iot / WIFI and 5GNR, and has the advantages of simple structure, low cost, wide bandwidth and high efficiency. Compared with the existing split-structure suction cup antenna, the structure of this embodiment is simple and easy to process.

[0026] In the 5GNR suction cup ultra-wideband antenna with a PCB structure described in this embodiment, the magnet 51 is arranged at the bottom of the cover 5; and a sticker 6 is arranged under the magnet 51.

[0027] In the 5GNR suction cup ultra-wideband antenna with a PCB structure described in this embodiment, the base 1 is a horn-shaped plastic part. The above arrangement makes the structure of the antenna more compact.

[0028] In the 5GNR suction cup ultra-wideband antenna with a PCB structure described in this embodiment, the edge of the cover body 5 and the braided layer 21 at the other end of the coaxial line 2 are embedded in the base 1. The above arrangement facilitates the connection between the cover body 5 and the braided layer 21, and facilitates fixing the cover body 5 and the braided layer 21 in the base 1 respectively.

[0029] The present embodiment describes a 5GNR suction cup ultra-wideband antenna with a PCB structure, wherein the PCB vibrator 4 includes a PCB board 41; a resonant branch, a coupling line and a soldering pad 42 are provided on the PCB board 41; the resonant branch and the core layer 22 at the other end of the coaxial line 2 are both connected to the soldering pad 42.

[0030] The present embodiment describes a 5GNR suction cup ultra-wideband antenna with a PCB structure, wherein the resonant branches include a high-frequency resonant branch 71, a medium-frequency resonant branch 72 and a low-frequency resonant branch 73; the high-frequency resonant branch 71, the medium-frequency resonant branch 72 and the low-frequency resonant branch 73 are respectively connected to the solder pad 42; the high-frequency resonant branch 71 is arranged in the medium-frequency resonant branch 72; the medium-frequency resonant branch 72 is arranged in the low-frequency resonant branch 73; the high-frequency resonant branch 71 and the medium-frequency resonant branch 72 are arranged at intervals; the medium-frequency resonant branch 72 and the low-frequency resonant branch 73 are arranged at intervals.

[0031] Specifically, the PCB board 41 is provided with a high-frequency resonance branch 71, an intermediate frequency resonance branch 72, and a low-frequency resonance branch 73. The branch with the longest line size is the low-frequency resonance branch 73 of 690-960MHz, the branch with the second longest line size is the intermediate frequency resonance branch 72 of 1710-2690MHz, and the branch with the shortest line size is the high-frequency resonance branch 71 of 3300-3800MHz. Through the above settings, the frequency band range of the antenna can include 690-960MHz and 1700-3800MHz, covering the frequency bands of 2G / 3G / 4G / NB-iot / WIFI and 5GNR.

[0032] In the 5GNR suction cup ultra-wideband antenna with a PCB structure described in this embodiment, the high-frequency resonance branch 71 is linear; the intermediate-frequency resonance branch 72 and the low-frequency resonance branch 73 are both L-shaped. The above arrangement can save space on the PCB board 41.

[0033] In the 5GNR suction cup ultra-wideband antenna with a PCB structure described in this embodiment, the coupling circuit includes a first coupling circuit 81, a second coupling circuit 82 and a third coupling circuit 83; the first coupling circuit 81 is arranged on a side of the low-frequency resonance branch 73 away from the intermediate-frequency resonance branch 72; the first coupling circuit 81 is arranged at an interval with the low-frequency resonance branch 73;

[0034] The second coupling line 82 is arranged between the intermediate frequency resonance branch 72 and the high frequency resonance branch 71; the second coupling line 82 is arranged at intervals from the intermediate frequency resonance branch 72 and the high frequency resonance branch 71 respectively;

[0035] The third coupling line 83 is arranged at the top of the low-frequency resonance branch 73 ; the third coupling line 83 and the low-frequency resonance branch 73 are arranged at intervals.

[0036] Specifically, the PCB board 41 has a first coupling circuit 81, a second coupling circuit 82 and a third coupling circuit 83. The first coupling circuit 81 is arranged on the side of the low-frequency resonance branch 73 away from the intermediate-frequency resonance branch 72, which is beneficial to increase the impedance bandwidth of the low frequency band; the second coupling circuit 82 is arranged between the intermediate-frequency resonance branch 72 and the high-frequency resonance branch 71, which is beneficial to increase the impedance bandwidth of the medium and high frequencies; the third coupling circuit 83 is arranged at the top of the low-frequency resonance branch 73, which can increase the impedance bandwidth of the low, medium and high frequencies at the same time.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A 5GNR suction cup ultra-wideband antenna with a PCB structure, characterized in that: The invention comprises a base (1), a coaxial line (2) and a radio frequency connector (3); a PCB vibrator (4) is arranged in the base (1); a cover body (5) is arranged at the bottom of the base (1); a magnet (51) is connected to the cover body (5); one end of the coaxial line (2) is connected to the radio frequency connector (3); the other end of the coaxial line (2) protrudes into the base (1); the braided layer (21) at the other end of the coaxial line (2) is connected to the cover body (5); and the wire core layer (22) at the other end of the coaxial line (2) is connected to the PCB vibrator (4); The PCB vibrator (4) comprises a PCB board (41); a resonant branch, a coupling line and a soldering pad (42) are provided on the PCB board (41); the resonant branch and the core layer (22) at the other end of the coaxial line (2) are both connected to the soldering pad (42); The resonant branches include high-frequency resonant branches (71), medium-frequency resonant branches (72) and low-frequency resonant branches (73); the high-frequency resonant branches (71), medium-frequency resonant branches (72) and low-frequency resonant branches (73) are respectively connected to the soldering pad (42); the high-frequency resonant branches (71) are arranged in the medium-frequency resonant branches (72); the medium-frequency resonant branches (72) are arranged in the low-frequency resonant branches (73); the high-frequency resonant branches (71) and the medium-frequency resonant branches (72) are arranged at intervals; the medium-frequency resonant branches (72) and the low-frequency resonant branches (73) are arranged at intervals; The high-frequency resonance branch (71) is in a straight line shape; the intermediate-frequency resonance branch (72) and the low-frequency resonance branch (73) are both in an L-shape; The coupling circuit comprises a first coupling circuit (81), a second coupling circuit (82) and a third coupling circuit (83); the first coupling circuit (81) is arranged on a side of the low-frequency resonance branch (73) away from the intermediate-frequency resonance branch (72); the first coupling circuit (81) and the low-frequency resonance branch (73) are arranged at intervals; The second coupling line (82) is arranged between the intermediate frequency resonance branch (72) and the high frequency resonance branch (71); the second coupling line (82) is arranged at intervals from the intermediate frequency resonance branch (72) and the high frequency resonance branch (71); The third coupling line (83) is arranged at the top of the low-frequency resonance branch (73); the third coupling line (83) and the low-frequency resonance branch (73) are arranged at intervals.

2. The 5GNR suction cup ultra-wideband antenna with a PCB structure according to claim 1, characterized in that: The magnet (51) is arranged at the bottom of the cover (5); a sticker (6) is arranged below the magnet (51).

3. The 5GNR suction cup ultra-wideband antenna with a PCB structure according to claim 1, characterized in that: The base (1) is a horn-shaped plastic part.

4. The 5GNR suction cup ultra-wideband antenna with a PCB structure according to claim 1, characterized in that: The edge of the cover body (5) and the braided layer (21) at the other end of the coaxial line (2) are embedded in the base (1).

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