High-gain 5G WIFI PCB antenna

Abstract

The utility model relates to the technical field of antennas, in particular to a high-gain 5G WIFI PCB antenna. The antenna comprises a PCB, a coaxial line and a cable line, the PCB is provided with a first antenna oscillator, a second antenna oscillator, a third antenna oscillator and a fourth antenna oscillator, the first antenna oscillator and the second antenna oscillator form a first half-wave dipole antenna, and the third antenna oscillator and the fourth antenna oscillator form a second half-wave dipole antenna. The first half-wave dipole antenna and the second half-wave dipole antenna are connected through the coaxial line, and the cable line is connected with the PCB. According to the 5G WIFI PCB antenna, the antenna body is optimized and combined on the basis that the 5G WIFI PCB antenna needs high gain, wide signal coverage range and strong through-wall capability, radiation fields of the two half-wave dipole antennas are superposed, so that the gain of the superposed antenna is higher than that of a single-oscillator antenna, the gain of the 5G WIFI PCB antenna is improved, and the through-wall capability of the 5G WIFI antenna is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to a high-gain 5G WIFI PCB antenna. Background Art

[0002] Under conventional design, the single-element 5G WIFI PCB antenna has weak penetration without sacrificing signal strength in other directions. In actual use, the signal will be attenuated by a wall, especially the metal components of modern building reinforced concrete walls, which cause great interference to the penetration of 5G WIFI. Utility Model Content

[0003] The utility model provides a high-gain 5G WIFI PCB antenna, aiming to solve the problem of weak penetration of existing single-element antennas.

[0004] The utility model provides a high-gain 5G WIFI PCB antenna, comprising a PCB board, a coaxial line, and a cable line. The PCB board is provided with a first antenna vibrator, a second antenna vibrator, a third antenna vibrator, and a fourth antenna vibrator. The first antenna vibrator and the second antenna vibrator constitute a first half-wave dipole antenna, the third antenna vibrator and the fourth antenna vibrator constitute a second half-wave dipole antenna, the first half-wave dipole antenna and the second half-wave dipole antenna are connected through a coaxial line, and the cable line is connected to the PCB board.

[0005] As a further improvement of the present invention, the first antenna element, the second antenna element, the third antenna element and the fourth antenna element are all antenna elements with a 1 / 4 wavelength.

[0006] As a further improvement of the present invention, the length of the coaxial line is one wavelength.

[0007] As a further improvement of the present invention, the first antenna element, the second antenna element, the third antenna element and the fourth antenna element are copper wirings covering the top of the PCB board.

[0008] As a further improvement of the present invention, an ink layer is plated on the upper surface of the PCB board.

[0009] As a further improvement of the present invention, the PCB board is further provided with a soldering pad, and two ends of the soldering pad are respectively connected to the cable line and the coaxial line.

[0010] As a further improvement of the present invention, the first antenna element is a "bow" shaped routing structure, the second antenna element is a "C" shaped routing structure, and the "bow" shaped first antenna element and the "C" shaped second antenna element are arranged back to back.

[0011] As a further improvement of the present invention, the solder pad is arranged between the first antenna element and the second antenna element.

[0012] As a further improvement of the present invention, the third antenna element and the fourth antenna element are of a "C"-shaped wiring structure, and the "C"-shaped third antenna element and the "C"-shaped fourth antenna element are arranged back to back.

[0013] The beneficial effects of the utility model are as follows: based on the requirements of the 5G WIFI PCB antenna for high gain, wide signal coverage, and strong wall penetration capability, the antenna body is optimized and combined, and the radiation fields of the two half-wave dipole antennas are superimposed so that the gain of the superimposed antenna is higher than that of the single-element antenna, thereby improving the gain of the 5G WIFI PCB antenna and improving the wall penetration capability of the 5G WIFI antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the high-gain 5G WIFI PCB antenna of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1 As shown, a high-gain 5G WIFI PCB antenna of the utility model includes a PCB board 1, a coaxial line 2, and a cable line 3. The PCB board 1 is provided with a first antenna vibrator 4, a second antenna vibrator 5, a third antenna vibrator 6, and a fourth antenna vibrator 7. The first antenna vibrator 4 and the second antenna vibrator 5 constitute a first half-wave dipole antenna, the third antenna vibrator 6 and the fourth antenna vibrator 7 constitute a second half-wave dipole antenna, the first half-wave dipole antenna and the second half-wave dipole antenna are connected through the coaxial line 2, and the cable line 3 is connected to the PCB board 1.

[0017] The first antenna element 4, the second antenna element 5, the third antenna element 6 and the fourth antenna element 7 are all antenna elements with a length of 1 / 4 wavelength. The length of the coaxial line 2 is one wavelength.

[0018] The first antenna element 4 and the second antenna element 5 are two 1 / 4 wavelength antenna elements, which together form a half-wave dipole antenna with an operating frequency range of 5.1GHz-5.9GHz. Since the antenna is wired above the PCB board 1, the relative dielectric constant of the PCB is greater than that of the air, so that the actual antenna routing length is less than the antenna wavelength under ideal conditions. The length of the first antenna element 4 is 12mm. The third antenna element 6 and the fourth antenna element 7 are also two 1 / 4 wavelength antenna elements forming a half-wave dipole antenna like the first antenna element 4 and the second antenna element 5. The two half-wave dipole antennas are connected by a coaxial line 2 of about one wavelength. It is generally recommended that the coaxial line 2 use a low-loss line to reduce the transmission loss between the two. According to the superposition theorem of linear systems, the radiation field of the two half-wave dipole antennas is the vector sum of the elementary radiation fields of the two antennas. The antenna gain after superposition will be higher than that of a single dipole antenna. The gain of a single dipole antenna is generally 2~3dBi, and the gain after superposition can reach 4~5dBi, meeting the requirements of high-gain antennas.

[0019] The first antenna vibrator 4, the second antenna vibrator 5, the third antenna vibrator 6, and the fourth antenna vibrator 7 are copper wirings covering the top of the PCB board 1. The upper surface of the PCB board 1 is plated with an ink layer. The bottom of the antenna is a PCB board 1 made of FR-4 material, and the copper wiring is covered on the top of the PCB board 1 as the antenna vibrator. The upper surface of the PCB board 1 of the antenna is plated with an ink layer to protect the copper skin area of ​​the antenna wiring to prevent oxidation.

[0020] The PCB board 1 is also provided with a soldering pad 8, and the two ends of the soldering pad 8 are respectively connected to the cable line 3 and the coaxial line 2. The cable line 3 of the whole machine is connected and conducted with two half-wave dipole antennas through the soldering pad 8, and the cable length can be adjusted according to actual use requirements.

[0021] The first antenna element 4 is a "bow" shaped wiring structure, and the second antenna element 5 is a "C" shaped wiring structure. The "bow" shaped first antenna element 4 and the "C" shaped second antenna element 5 are arranged back to back. The pad 8 is arranged between the first antenna element 4 and the second antenna element 5.

[0022] The third antenna element 6 and the fourth antenna element 7 are of a “C”-shaped wiring structure, and the “C”-shaped third antenna element 6 and the “C”-shaped fourth antenna element 7 are arranged back to back.

[0023] The "C" shape of the second antenna element 5, the third antenna element 6, and the fourth antenna element 7 all form a 1 / 4 wavelength antenna element radiator. The first antenna element 4, the second antenna element 5, the third antenna element 6, and the fourth antenna element 7 each form two half-wave dipole antennas. Since the cable 3 needs to be connected to the entire device, the "C" shape of the first antenna element 4 is structurally deformed for the following purposes: (1) to facilitate welding; (2) to adjust the distance between the two half-wave dipole antennas. Different distances will affect the overall antenna field superposition and adjust the antenna gain.

[0024] This high-gain 5G WIFI PCB antenna forms a high-gain antenna by superimposing oscillators through structural processing without sacrificing the gain of the antenna in other directions, and improves the antenna performance from the antenna body design to improve the penetration of 5G WIFI.

[0025] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A high-gain 5G WIFI PCB antenna, characterized in that: The invention comprises a PCB board, a coaxial line and a cable line. The PCB board is provided with a first antenna element, a second antenna element, a third antenna element and a fourth antenna element. The first antenna element and the second antenna element constitute a first half-wave dipole antenna, the third antenna element and the fourth antenna element constitute a second half-wave dipole antenna, the first half-wave dipole antenna and the second half-wave dipole antenna are connected via a coaxial line, and the cable line is connected to the PCB board.

2. The high-gain 5G WIFI PCB antenna according to claim 1, characterized in that: The first antenna element, the second antenna element, the third antenna element, and the fourth antenna element are all antenna elements with a 1 / 4 wavelength.

3. The high-gain 5G WIFI PCB antenna according to claim 1, characterized in that: The length of the coaxial line is one wavelength.

4. The high-gain 5G WIFI PCB antenna according to claim 1, characterized in that: The first antenna element, the second antenna element, the third antenna element, and the fourth antenna element are copper wirings covering the top of the PCB board.

5. The high-gain 5G WIFI PCB antenna according to claim 1, characterized in that: The upper surface of the PCB board is plated with an ink layer.

6. The high-gain 5G WIFI PCB antenna according to claim 1, characterized in that: The PCB board is also provided with a soldering pad, and two ends of the soldering pad are respectively connected to the cable line and the coaxial line.

7. The high-gain 5G WIFI PCB antenna according to claim 6, characterized in that: The first antenna element has a "bow" shaped routing structure, and the second antenna element has a "C" shaped routing structure. The "bow" shaped first antenna element and the "C" shaped second antenna element are arranged back to back.

8. The high-gain 5G WIFI PCB antenna according to claim 7, characterized in that: The pad is arranged between the first antenna element and the second antenna element.

9. The high-gain 5G WIFI PCB antenna according to claim 1, characterized in that: The third antenna element and the fourth antenna element are of a "C"-shaped routing structure, and the "C"-shaped third antenna element and the "C"-shaped fourth antenna element are arranged back to back.

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