CN111525234A - Dual-polarized antenna and customer front-end equipment - Google Patents

Abstract

The embodiment of the application provides a dual polarized antenna and customer leading equipment, dual polarized antenna includes the radiation panel, first backup pad, second backup pad and antenna radiation portion, is equipped with the first oscillator unit and the second oscillator unit of the mutual quadrature of polarization direction on the radiation panel, first backup pad and second backup pad quadrature set up and support the radiation panel jointly, antenna radiation portion is located first backup pad and second backup pad, and, antenna radiation portion is connected with first oscillator unit and second oscillator unit electricity respectively. Therefore, the dual-polarized antenna can be miniaturized, and the assembly difficulty of the dual-polarized antenna can be reduced.

Description

Dual-polarized antenna and customer front-end equipment

technical field

The present application relates to the field of antenna technology, and in particular, to a dual-polarized antenna and a customer front-end device.

Background technique

Customer Premise Equipment (CPE) is a mobile signal access device that receives mobile signals and forwards them with Wireless Fidelity (Wi-Fi for short). The number of mobile terminals that can support simultaneous Internet access is also large. CPE can be widely used in wireless network access in rural areas, towns, hospitals, units, factories, communities, etc., which can save the cost of laying wired networks.

When the distance is relatively long or there are many obstacles, the signal coverage of the base station is prone to signal blind spots. In these blind spots, terminal devices such as smartphones cannot receive base station signals. The CPE can perform secondary relaying on the base station signal, which turns the received signal into a Wi-Fi signal and provides it to the devices around it. Compared with terminal devices such as smartphones and notebooks, the CPE antenna has stronger gain and higher power, and its signal transceiver capability is stronger than that of smartphones. So, in some places, the smartphone has no signal, and the CPE may have a signal. CPE can turn operators' network signals into Wi-Fi signals, and more devices such as smartphones, tablets, and laptops can use CPE to access the Internet.

The internal space of the CPE is limited. In order to improve the portability of the CPE, there are often certain requirements for the volume of the CPE. However, the volume of the CPE is limited, which will affect the space for installing the antenna inside the CPE, thereby affecting the performance of the CPE.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a dual-polarized antenna and a customer front-end device, which can realize miniaturization of the antenna.

In a first aspect, an embodiment of the present application provides a dual-polarized antenna, including:

a radiation plate, the radiation plate includes a first surface and a second surface arranged opposite to each other, and the first surface is provided with a first oscillator unit and a second oscillator unit whose polarization directions are orthogonal to each other;

a first support plate, the first support plate is connected to the second surface of the radiation plate;

a second support plate, the second support plate is connected to the second surface of the radiation plate, the second support plate is orthogonal to the first support plate, the second support plate and the first support plate support plates collectively support the radiant plate; and

an antenna radiation part, the antenna radiation part is located on the first support plate and the second support plate, and the antenna radiation part is respectively electrically connected with the first vibrator unit and the second vibrator unit.

In a second aspect, an embodiment of the present application provides a customer pre-installation device, including:

A dual-polarized antenna comprising a dual-polarized antenna as described above; and

A circuit board; the circuit board is electrically connected with the dual-polarized antenna, so that the dual-polarized antenna transmits radio frequency signals.

In the dual-polarized antenna and customer front-end equipment provided in the embodiment of the present application, the dual-polarized antenna includes a radiation plate, a first support plate, a second support plate, and an antenna radiation portion, and the radiation plate is provided with mutually orthogonal polarization directions. The first vibrator unit and the second vibrator unit, the first support plate and the second support plate are orthogonally arranged and jointly support the radiation plate, the antenna radiation part is located on the first support plate and the second support plate, and the antenna radiation part is respectively connected to the The first vibrator unit and the second vibrator unit are electrically connected. Based on this, in the dual-polarized antenna of the embodiment of the present application, the antenna radiation part can increase the radiation length of the first oscillator unit and the second oscillator unit, and on the premise of covering the same frequency band, the area of the first oscillator unit and the second oscillator unit can be smaller, so that the volume of the entire dual-polarized antenna is smaller, and the dual-polarized antenna can be miniaturized. In addition, the antenna radiating part is arranged on the first support plate and the second supporting plate, and there is no need to additionally set the carrier of the antenna radiating part, which saves the structure of the dual-polarized antenna. On the first support plate and the second support plate, there is no need to adjust the position of the antenna radiation part to ensure that the first oscillator unit and the second oscillator unit after being electrically connected to the antenna radiation part are still arranged orthogonally, thus reducing the dual polarization. Assembly of the antenna is difficult.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of a customer premises equipment provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of an application scenario of a customer premises equipment according to an embodiment of the present application.

FIG. 3 is a schematic diagram of a first structure of a dual-polarized antenna provided by an embodiment of the present application.

FIG. 4 is a schematic diagram of the connection of the first support plate and the second support plate shown in FIG. 3 .

FIG. 5 is a schematic diagram of the first structure of the first vibrator unit and the second vibrator unit shown in FIG. 3 .

FIG. 6 is a schematic diagram of a second structure of the first vibrator unit and the second vibrator unit shown in FIG. 3 .

FIG. 7 is a schematic diagram of the connection between the antenna radiation part, the first vibrator unit and the second vibrator unit shown in FIG. 3 .

FIG. 8 is a schematic diagram of an exploded structure of the dual-polarized antenna shown in FIG. 3 .

FIG. 9 is a schematic structural diagram of the first balun feeding structure and the second balun feeding structure shown in FIG. 8 in the first direction.

FIG. 10 is a schematic structural diagram of the first balun feeding structure and the second balun feeding structure shown in FIG. 8 in the second direction.

FIG. 11 is a schematic diagram of electrical connection of the first vibrator unit and the second vibrator unit shown in FIG. 8 .

FIG. 12 is a schematic diagram of a second structure of a dual-polarized antenna provided by an embodiment of the present application.

FIG. 13 is a schematic structural diagram of the reflector shown in FIG. 12 .

FIG. 14 is a graph of S21 parameters of the first vibrator unit and the second vibrator unit of the dual-polarized antenna provided by the embodiment of the present application.

FIG. 15 is a radiation efficiency curve diagram of a dual-polarized antenna provided by an embodiment of the present application.

FIG. 16 is a first three-dimensional radiation pattern of the dual-polarized antenna provided by the embodiment of the present application.

FIG. 17 is a plane radiation pattern of the dual-polarized antenna shown in FIG. 16 .

FIG. 18 is a second stereo radiation pattern of the dual-polarized antenna provided by the embodiment of the present application.

FIG. 19 is a plane radiation pattern of the dual-polarized antenna shown in FIG. 18 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

Embodiments of the present application provide a dual-polarized antenna and a customer front-end device. The detailed descriptions will be given below. Wherein, the dual-polarized antenna can be set in the customer's front-end equipment. The customer front-end equipment can be a device that has the function of secondary relaying the base station signal and turning the received signal into a Wi-Fi signal for use by nearby devices, such as wireless routers, repeaters, telephones, optical Devices such as cats and computers may all be customer pre-installed devices in the embodiments of the present application.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a customer premises equipment provided by an embodiment of the present application. The customer premise 10 may include a dual polarized antenna 100 , a housing 200 and a circuit board 300 . Wherein, both the circuit board 300 and the dual-polarization antenna 100 may be disposed in the housing 200 , and the dual-polarization antenna 100 may include one or more, for example, four dual-polarization antennas 100 are provided in FIG. 1 . A radio frequency circuit can be set on the circuit board 300. After the dual-polarized antenna 100 is electrically connected to the circuit board 300, under the control of the radio frequency circuit, the dual-polarized antenna 100 can perform wireless communication with the base station and other wireless devices to achieve Transmission of radio frequency signals.

Exemplarily, with reference to FIG. 1 and FIG. 2 , FIG. 2 is a schematic diagram of an application scenario of the customer premises equipment provided by the embodiment of the present application. When the signal of the base station 20 is weak, the customer premises equipment 10 in this embodiment of the present application may control the dual-polarized antenna 100 to perform secondary relay of the signal of the base station 20, and the customer premises equipment 10 may receive the dual-polarized antenna 100. The obtained signal becomes a Wi-Fi signal, and is provided to the terminal device 30 around, such as a mobile phone, a tablet computer, a notebook computer, etc., through the dual-polarized antenna 100 for use.

In order to improve the portability of the customer premises equipment 10, the volume of the customer premises equipment 10 is often set smaller, which makes the volume of the dual polarized antenna 100 built in the casing 200 of the customer premises equipment 10 also smaller. . Based on this, please refer to FIG. 3 , which is a schematic diagram of a first structure of a dual-polarized antenna provided by an embodiment of the present application.

The dual-polarized antenna 100 in the embodiment of the present application includes a radiation plate 110 , a first support plate 120 , a second support plate 130 , a first oscillator unit 140 , a second oscillator unit 150 , and an antenna radiation portion 160 . The radiation plate 110 includes a first surface 111 and a second surface 112 arranged opposite to each other, the first vibrator unit 140 and the second vibrator unit 150 are arranged on the first surface 111 , and the poles of the first vibrator unit 140 and the second vibrator unit 150 are The directions are orthogonal to each other.

Wherein, the first support plate 120 and the second support plate 130 are located on one side of the second surface 112 of the radiation plate 110 , the first support plate 120 and the second support plate 130 are arranged orthogonally, the first support plate 120 and the second support plate 130 The plate 130 is also connected to the second surface 112 so that the first support plate 120 and the second support plate 130 can support the radiation plate 110 together. The antenna radiating portion 160 is located on the first support plate 120 and the second support plate 130 at the same time. The antenna radiating portion 160 is electrically connected to the first vibrator unit 140 and the second vibrator unit 150 respectively, so that the antenna radiating portion 160 and the first vibrator unit 140 and the second vibrator unit 150 jointly radiate radio frequency signals.

In the dual-polarized antenna 100 of the embodiment of the present application, the antenna radiation part 160 can increase the radiation length of the first oscillator unit 140 and the second oscillator unit 150. The area of the dipole unit 150 can be smaller, so that the volume of the entire dual-polarized antenna 100 can be smaller, and the dual-polarized antenna 100 can be miniaturized; The unit 150 can cover the radio frequency signal of the low frequency band, so that the frequency band of the dual polarized antenna 100 can also be expanded. In addition, in this embodiment of the present application, the antenna radiating portion 160 is disposed on the first support plate 120 and the second support plate 130, and there is no need to additionally provide a carrier for the antenna radiating portion 160, which simplifies the structure of the dual-polarized antenna 100. The antenna radiating part 160 is arranged on the orthogonally arranged first support plate 120 and the second supporting plate 130 , and the first vibrator unit 140 and the first vibrator unit 140 after the antenna radiating part 160 can be electrically connected without additional adjustment of the position of the antenna radiating part 160 . The second vibrator units 150 are still arranged orthogonally, thereby reducing the assembly difficulty of the dual-polarized antenna 100 .

The first support plate 120 and the second support plate 130 can be orthogonally connected together by means of riveting, screw connection, etc. Of course, the first support plate 120 and the second support plate 130 can also be orthogonally connected together by clamping .

Exemplarily, please refer to FIG. 4 , which is a schematic diagram of the connection of the first support plate and the second support plate shown in FIG. 3 . The lower end of the first support plate 120 can be provided with a first notch 121, the upper end of the second support plate 130 can be provided with a second notch 131, and the positions of the first notch 121 and the second notch 131 can be matched, so that the first support The plate 120 can be inserted into the second notch 131 and the second support plate 130 can be inserted into the first notch 121. The upper and lower ends of the first support plate 120 and the second support plate 130 can be flush. The orthogonal snap connection of the first support plate 120 and the second support plate 130 .

It should be noted that the connection method of the first support plate 120 and the second support plate 130 in the embodiment of the present application is not limited to this, and other methods for realizing the orthogonal connection between the first support plate 120 and the second support plate 130 are all It is within the protection scope of the embodiments of the present application.

It can be understood that, as shown in FIG. 3 , the lengths of the first support plate 120 and the second support plate 130 may be equal to the diagonal length of the radiation plate 110 . That is, the first support plate 120 may be disposed along one diagonal of the radiation plate 110, and the second support plate 130 may be disposed along the other diagonal of the radiation plate 110, so that the first support in the embodiment of the present application The contact area between the plate 120 and the second support plate 130 and the radiation plate 110 is larger, which can better support the radiation plate 110 .

It can be understood that by using the first support plate 120 and the second support plate 130 to support the radiation plate 110 , the clearance area of the first oscillator unit 140 and the second oscillator unit 150 on the radiation plate 110 can be increased, thereby increasing the first oscillator The isolation between the unit 140 and the second vibrator unit 150 .

3 , the first vibrator unit 140 and the second vibrator unit 150 in the embodiment of the present application may be directly or indirectly connected to the first surface 111 of the radiation plate 110 . For example, the first vibrator unit 140 and the second vibrator unit 150 may be directly etched on the first surface 111 . For another example, the first vibrator unit 140 and the second vibrator unit 150 may be attached to the first surface 111 in the form of patches. For another example, the first vibrator unit 140 and the second vibrator unit 150 may be formed on the first surface 111 by spraying with silver paste. It can be understood that the embodiment of the present application does not specifically limit the connection form of the first vibrator unit 140 and the second vibrator unit 150 .

The first vibrator unit 140 may be a dipole vibrator unit. Exemplarily, please refer to FIG. 5 , which is a schematic diagram of the first structure of the first vibrator unit and the second vibrator unit shown in FIG. 3 . The first vibrator unit 140 may include two radiation arms, eg, a first radiation arm 141 and a second radiation arm 142 . As shown in FIG. 5 , the first radiation arm 141 and the second radiation arm 142 may be located on the same radiation plane, and the first radiation arm 141 may be axially symmetrical about a first symmetry line L1, and the second radiation arm 142 may also be axially symmetrical about the first line of symmetry L1, and at the same time, the first radiation arm 141 and the second radiation arm 142 may also be centrally symmetrical about an origin O, so that the first radiation arm 141 and the second radiation arm 142 The formed first vibrator unit 140 is a dipole vibrator unit.

Similarly, the second oscillator unit 150 may also be a dipole oscillator unit. As shown in FIG. 5 , the second vibrator unit 150 may include two radiation arms, for example, a third radiation arm 151 and a fourth radiation arm 152 . The third radiation arm 151 and the fourth radiation arm 152 may be located on the same radiation plane, and the third radiation arm 151 may be axially symmetrical about a second symmetry line L2, and the fourth radiation arm 152 may also be about the first radiation arm 152. The two lines of symmetry L2 are axially symmetrical. Meanwhile, the third radiating arm 151 and the fourth radiating arm 152 may also be centrally symmetrical about the origin O, so that the second vibrator unit 150 formed by the third radiating arm 151 and the fourth radiating arm 152 is a dipole vibrator unit.

Wherein, the polarization direction of the first vibrator unit 140 and the polarization direction of the second vibrator unit 150 are orthogonal to each other. Exemplarily, as shown in FIG. 5 , the first line of symmetry L1 of the first oscillator unit 140 and the second line of symmetry L2 of the second oscillator unit 150 may intersect at the origin O, and the first line of symmetry L1 and the second line of symmetry The included angle between L2 may be 90 degrees. At this time, the first radiation arms 141 , the second radiation arms 142 , the third radiation arms 151 , and the fourth radiation arms 152 are arranged in two mirror images. That is, between the first radiation arm 141 and the third radiation arm 151 and between the second radiation arm 142 and the fourth radiation arm 152 may be axially symmetrical about the third symmetry line L3, and the first radiation arm 141 and the fourth radiation arm 141 The arms 152 and between the second radiation arm 142 and the third radiation arm 151 may be axially symmetrical about the fourth symmetry line L4.

It can be understood that the angle between the first line of symmetry L1 and the third line of symmetry L3 may be -45 degrees, the angle between the second line of symmetry L2 and the third line of symmetry L3 may be +45 degrees, and further, the first oscillator The unit 140 and the second dipole unit 150 can form a dual-polarized antenna radiator of ±45 degrees. In the dual-polarized antenna radiator, the polarization orthogonality of ±45 degrees can ensure that the isolation between the first dipole unit 140 and the second dipole unit 150 of +45 degrees and -45 degrees can satisfy the intermodulation to the isolation between the antennas degree requirements (≥30dB), and can effectively ensure the gain of antenna diversity when receiving signals.

The shapes of the first vibrator unit 140 and the second vibrator unit 150 can be various shapes such as petal shape, square shape, butterfly shape, circle shape, and triangle shape. For example, the first vibrator unit 140 and the second vibrator unit 150 in FIG. 5 are rectangular shapes. For another example, please refer to FIG. 6 , which is a schematic diagram of a second structure of the first vibrator unit and the second vibrator unit shown in FIG. 3 . As shown in FIG. 6 , the first vibrator unit 140 and the second vibrator unit 150 in FIG. 6 are petal-shaped. It can be understood that the embodiments of the present application do not limit the shapes of the first vibrator unit 140 and the second vibrator unit 150 .

The first vibrator unit 140 and the second vibrator unit 150 may be provided with a hollow structure or a groove structure. Exemplarily, one or more groove structures may be formed on the first vibrator unit 140 and the second vibrator unit 150 by etching, cutting, or the like. Or, exemplarily, as shown in FIG. 5 and FIG. 6 , the first radiating arm 141 of the first vibrator unit 140 may be provided with a first through hole 143 penetrating the thickness direction of the radiating plate 110 . The two radiation arms 142 may be provided with second through holes 144 penetrating the thickness direction of the radiation plate 110 . Similarly, the third radiating arm 151 of the second vibrator unit 150 may also be provided with a third through hole 153 penetrating the thickness direction of the radiation plate 110 , and the fourth radiating arm 152 of the second vibrator unit 150 may also be provided with penetrating radiation The fourth through hole 154 in the thickness direction of the board 110 .

The shape and size of the first through hole 143, the second through hole 144, the third through hole 153 and the fourth through hole 154 may be exactly the same, and the first through hole 143, the second through hole 144, the third through hole 143, the third through hole The holes 153 and the fourth through holes 154 can also be arranged in mirror images to ensure that the first radiation arms 141 , the second radiation arms 142 , the third radiation arms 151 and the fourth radiation arms 152 are also arranged in mirror images.

It can be understood that the first through hole 143 , the second through hole 144 , the third through hole 153 and the fourth through hole 154 can be through hole structures of any shape, such as circle, ring, triangle, rectangle, butterfly, The structure of the above-mentioned through hole is not specifically limited in the embodiment of the present application.

It can be understood that the number of the first through hole 143 , the second through hole 144 , the third through hole 153 and the fourth through hole 154 is not limited to one, and may also include multiple ones. As shown in FIG. 5 , the numbers of the first through holes 143 , the second through holes 144 , the third through holes 153 and the fourth through holes 154 are all three. It should be noted that the number of the first through holes 143 , the second through holes 144 , the third through holes 153 and the fourth through holes 154 can be the same to ensure that the first radiation arm 141 , the second radiation arm 142 , the The three radiating arms 151 and the fourth radiating arms 152 are also arranged in two mirror images. In the dual-polarized antenna 100 of the embodiment of the present application, a through-hole structure is provided on the first oscillator unit 140 and the second oscillator unit 150. Due to the existence of the through-hole structure, the first oscillator unit 140 and the second oscillator unit 150 are connected to each other. Capacitance effects can be generated at the edge of the hole structure, so that the working frequency bands of the first vibrator unit 140 and the second vibrator unit 150 can be extended to high frequency bands.

Based on the above structures of the first vibrator unit 140 and the second vibrator unit 150 , please refer to FIG. 7 , which is a schematic diagram of the connection between the antenna radiating portion and the first vibrator unit and the second vibrator unit shown in FIG. 3 . The antenna radiating part 160 of the embodiment of the present application may include four sub-radiating parts, corresponding to the two radiating arms of the first dipole unit 140 and the two radiating arms of the second dipole unit 150 , and each sub-radiating part may correspond to One radiating arm is connected, so that one radiating arm and one sub-radiating part form a whole and radiate radio frequency signals together.

As shown in FIG. 7 , the antenna radiation part 160 includes a first sub-radiation part 161 , a second sub-radiation part 162 , a third sub-radiation part 163 and a fourth sub-radiation part 164 , wherein the first sub-radiation part 161 can be combined with the first sub-radiation part 161 . A radiation arm 141 is electrically connected to form the first radiation body; the second sub-radiation part 162 can be electrically connected to the second radiation arm 142 to form a second radiation body; the third sub-radiation part 163 can be electrically connected to the third radiation arm 151 and form a third radiating whole; the fourth sub-radiating part 164 can be electrically connected with the fourth radiating arm 152 to form a fourth radiating whole.

It can be understood that the above-mentioned first radiation unit, second radiation unit, third radiation unit and fourth radiation unit may also be mirrored in pairs, so that the first radiation unit, the second radiation unit, the third radiation unit and the fourth radiation unit are mirror images. The four-radiation whole can still form a dual-polarized antenna radiator.

It should be noted that, theoretically, the shapes and sizes of the first sub-radiation part 161 , the second sub-radiation part 162 , the third sub-radiation part 163 and the fourth sub-radiation part 164 should be exactly the same. However, in practical applications, the shapes and sizes of the first sub-radiation portion 161 , the second sub-radiation portion 162 , the third sub-radiation portion 163 and the fourth sub-radiation portion 164 may be approximately the same. That is to say, in practical applications, the configuration of the dual-polarized antenna 100 can be realized by the above-mentioned approximately mirror image setting of the first radiation unit, the second radiation unit, the third radiation unit and the fourth radiation unit. For example, in actual use, the lengths of the first sub-radiation part 161 , the second sub-radiation part 162 , the third sub-radiation part 163 and the fourth sub-radiation part 164 may be inconsistent within a certain range.

It can be understood that because the first vibrator unit 140 including the first radiation arm 141 and the second radiation arm 142 and the second vibrator unit 150 including the third radiation arm 151 and the fourth radiation arm 152 are disposed on the radiation plate 110 The antenna radiation part 160 including the first sub-radiation part 161, the second sub-radiation part 162, the third sub-radiation part 163 and the fourth sub-radiation part 164 is disposed on the second surface of the radiation plate 110 112 side. Therefore, when the electrical connection between the antenna radiating portion 160 and the first vibrator unit 140 and the second vibrator unit 150 is realized, four slits may be provided on the radiation plate 110 penetrating the first surface 111 and the second surface 112 (not shown in the figure). shown), the four slits can be set corresponding to the four sub-radiating parts, so that each sub-radiating part of the antenna radiating part 160 can pass through a slit and be directly or indirectly connected with a radiating arm on the first surface 111 , such as soldered together to achieve an electrical connection.

In the dual-polarized antenna 100 of the embodiment of the present application, the antenna radiating portion 160 is electrically connected to the first vibrator unit 140 and the second vibrator unit 150 through the slit on the radiating plate 110 . The antenna radiating portion 160 of the embodiment of the present application can increase the length of the thickness of the radiating plate 110, so that the antenna radiating portion 160 is longer to cover signals in lower frequency bands; on the other hand, when the length of the antenna radiating portion 160 is constant , the antenna radiating portion 160 of the embodiment of the present application can hide a length of the thickness of the radiating portion without occupying additional space, so that the height of the dual-polarized antenna 100 can be made smaller, and the size of the dual-polarized antenna 100 can be made smaller .

Based on the structures of the antenna radiating portion 160 , the first vibrator unit 140 , and the second vibrator unit 150 , please refer to FIG. 3 and FIG. 8 , which is a schematic diagram of an exploded structure of the dual-polarized antenna shown in FIG. 3 . The dual-polarized antenna 100 of the embodiment of the present application further includes a first balun feeding structure 170 and a second balun feeding structure 180 .

Wherein, the first balun feeding structure 170 may be directly or indirectly connected to the first supporting plate 120 , for example, the first balun feeding structure 170 may be formed on the side surface of the first supporting plate 120 by etching, patching, etc. . The first balun feeding structure 170 may be electrically connected to the two radiating arms of the first vibrator unit 140 respectively, so that the currents flowing through the two radiating arms of the first vibrator unit 140 are in the same direction. Similarly, the second balun feeding structure 180 can be directly or indirectly connected to the second supporting plate 130 , for example, the second balun feeding structure 180 can be formed on the side of the second supporting plate 130 by etching, patching, etc. superior. The second balun feeding structure 180 may be electrically connected to the two radiating arms of the second vibrator unit 150 respectively, so that the currents flowing through the two radiating arms of the second vibrator unit 150 are in the same direction.

When the first vibrator unit 140 and the second vibrator unit 150 are both dipole antennas, according to the antenna theory, the dipole antenna is a balanced antenna, while the commonly used feeding coaxial cable is an unbalanced transmission line. If the pole antenna is electrically connected to the coaxial cable, the outer skin of the coaxial cable has high-frequency current flowing, and the currents of the two radiating arms of the dipole antenna are not in the same direction, which will affect the radiation of the antenna. In the dual-polarized antenna 100 of the embodiment of the present application, the first balun feeding structure 170 and the second balun feeding structure 180 make the currents flowing through the two radiating arms of the first vibrator unit 140 run in the same direction and pass through The currents of the two radiating arms of the second vibrator unit 150 are also in the same direction, so that the radiation performance of the antenna can be guaranteed.

Wherein, both the first balun feeding structure 170 and the second balun feeding structure 180 may include a coupling part and a feeding part. Exemplarily, please refer to FIG. 9 and FIG. 10 in conjunction with FIG. 8 . FIG. 9 is a schematic structural diagram of the first balun feeding structure and the second balun feeding structure shown in FIG. 8 , and FIG. 10 is FIG. 8 is a schematic structural diagram of the first balun feeding structure and the second balun feeding structure in the second direction.

As shown in FIGS. 9 and 10 , the first balun feeding structure 170 may include a first coupling part 171 and a first feeding part 172 . The first coupling portion 171 and the first feeding portion 172 may be connected to two opposite sides of the first support plate 120, respectively. For example, the first coupling portion 171 may be directly or indirectly connected to the first side of the first support plate 120. A feeding portion 172 may be directly or indirectly connected to the second side surface of the first support plate 120, wherein the first side surface and the second side surface are disposed opposite to each other.

It can be understood that, one end of the first coupling part 171 may be electrically connected to the two radiation arms of the first vibrator unit 140 respectively, and the other end of the first coupling part 171 may be grounded. One end of the first feeding part 172 can be used for electrical connection with the inner core of the coaxial cable, the other end of the first feeding part 172 can be coupled and connected with the first coupling part 171 , and the outer core of the coaxial cable is grounded. At this time, the coaxial line, the first feeding part 172 , the first coupling part 171 and the radiation arm of the first vibrator unit 140 can form a complete signal loop, and the coaxial line feeds the radio frequency signal into the first feeding part 172 , the first feeding part 172 couples the radio frequency signal to the first coupling part 171 through electromagnetic coupling, and the first coupling part 171 transmits the radio frequency signal to the two radiation arms of the first vibrator unit 140, so that the The currents of the two radiating arms of the vibrator unit 140 are in the same direction so that they can transmit radio frequency signals together.

As shown in FIG. 9 , the first coupling part 171 may include two sub-sections, eg, a first sub-coupling part 1711 and a second sub-coupling part 1712 . As shown in FIG. 10 , the first power feeder 172 may include two subsections, eg, a first subpower feeder 1721 and a second subpower feeder 1722 . One end of the first sub-feeding part 1721 is electrically connected to the inner core of the coaxial line, and the other end is coupled and connected to the first sub-coupling part 1711 , and one end of the first sub-coupling part 1711 is connected to the first radiation of the first vibrator unit 140 The arms 141 are electrically connected, and the other end of the first sub-coupling portion 1711 is grounded, so that the first sub-feeding portion 1721 and the first sub-coupling portion 1711 can form a first feeding structure. Similarly, one end of the second sub-feeding part 1722 is electrically connected to the inner core of the coaxial line, and the other end is coupled and connected to the second sub-coupling part 1712 , and one end of the second sub-coupling part 1712 is connected to the second The radiation arm 142 is electrically connected, and the other end of the second sub-coupling part 1712 is grounded, so that the second sub-feeding part 1722 and the second sub-coupling part 1712 can form a second feeding structure.

Wherein, as shown in FIGS. 8 to 10 , the second balun feeding structure 180 may include a second coupling part 181 and a second feeding part 182 . The second coupling portion 181 and the second feeding portion 182 may be connected to two opposite sides of the second support plate 130, respectively. For example, the second coupling portion 181 may be directly or indirectly connected to the third side of the second support plate 130. The second power feeding portion 182 may be directly or indirectly connected to the fourth side surface of the second support plate 130 , wherein the third side surface and the fourth side surface are disposed opposite to each other.

It can be understood that the structure of the second coupling part 181 can be the same as that of the first coupling part 171 , for example, one end of the second coupling part 181 can be electrically connected to the two radiation arms of the second vibrator unit 150 The other end of the coupling part 181 may be grounded. The structure of the second power feeder 182 may also be the same as that of the first power feeder 172 . For example, one end of the second power feeder 182 may be used for electrical connection with the inner core of the coaxial cable, and the second power feeder 182 The other end of the coaxial cable can be connected to the second coupling part 181, and at the same time, the outer core of the coaxial cable is grounded. At this time, the coaxial line, the second feeding part 182 , the second coupling part 181 and a radiation arm of the second vibrator unit 150 can form a complete signal loop, so that the two radiations flowing through the second vibrator unit 150 The currents of the arms are in the same direction so that they can transmit RF signals together.

Wherein, as shown in FIG. 10 , the second coupling part 181 may include a third sub-coupling part 1811 and a fourth sub-coupling part 1812 . As shown in FIG. 9 , the second power feeding part 182 may include a third sub power feeding part 1821 and a fourth sub power feeding part 1822 . One end of the third sub-feeding portion 1821 is electrically connected to the inner core of the coaxial line, and the other end is coupled and connected to the third sub-coupling portion 1811 . For electrical connection, the other end of the third sub-coupling portion 1811 is grounded, so that the third sub-feeding portion 1821 and the third sub-coupling portion 1811 can form a third feeding structure. Similarly, one end of the fourth sub-feeding part 1822 is electrically connected to the inner core of the coaxial cable, and the other end is coupled and connected to the fourth sub-coupling part 1812 , and one end of the fourth sub-coupling part 1812 is connected to the fourth The radiation arm 152 is electrically connected, and the other end of the fourth sub-coupling part 1812 is grounded, so that the fourth sub-feeding part 1822 and the fourth sub-coupling part 1812 can form a fourth feeding structure.

In the dual-polarized antenna 100 of the embodiment of the present application, the first balun feeding structure 170 is disposed on the first supporting plate 120 and the second balun feeding structure 180 is disposed on the second supporting plate 130. On the one hand, it is not necessary to Additional space for setting up the first balun feeding structure 170 and the second balun feeding structure 180 is reserved, which saves the internal space of the customer's front-end equipment 10; on the other hand, the first supporting plate 120 and the second supporting plate 130 The area of the first balun feeding structure 170 and the second balun feeding structure 180 can be set at any position of the first supporting plate 120 and the second supporting plate 130, so as to facilitate the adjustment of the first vibrator unit 140, The frequency and gain of the second vibrator unit 150 . In addition, after the first balun feeding structure 170 and the second balun feeding structure 180 in the embodiment of the present application are respectively disposed on the first supporting plate 120 and the second supporting plate 130 which are arranged orthogonally, the first feeding bar The ram structure and the second feeding balun structure can also be arranged orthogonally, so that the installation difficulty of the first feeding balun structure and the second feeding balun structure can be reduced.

It can be understood that, the first to fourth sub-coupling parts and the first to fourth sub-feeding parts in the embodiments of the present application may be formed on the first support plate 120 and the second support plate 130 by etching, patching, or the like. superior. The first sub-coupling part 1711 and the second sub-coupling part 1712 may be two independent parts, and the third sub-coupling part 1811 and the fourth sub-coupling part 1812 may also be two independent parts. Alternatively, the first sub-coupling part 1711 and the second sub-coupling part 1712 can also be a whole, and the third sub-coupling part 1811 and the fourth sub-coupling part 1812 can also be a whole, so that the first coupling part 171, the third sub-coupling part 1812 can be simplified Two forming processes of the coupling portion 181 .

Similarly, the first sub-feeding part 1721 and the second sub-feeding part 1722 can be two independent parts, and the third sub-feeding part 1821 and the fourth sub-feeding part 1822 can also be two independent parts. Alternatively, the first sub-feeding part 1721 and the second sub-feeding part 1722 can also be a whole, and the third sub-feeding part 1821 and the fourth sub-feeding part 1822 can also be a whole, so that the first sub-feeding part 1822 can be simplified. The forming process of the power feeding part 1721 and the second sub power feeding part 1722 .

It can be understood that, as shown in FIG. 9 , the first sub-coupling part 1711 and the second sub-coupling part 1712 may be symmetrically disposed about a center line L5 passing through the origin and perpendicular to the first surface 111 of the radiation plate 110 . Similarly, as shown in FIG. 10 , the third sub-coupling portion 1811 and the fourth sub-coupling portion 1812 may also be symmetrically arranged with respect to the center line L5 . Also, the first sub-coupling part 1711 , the second sub-coupling part 1712 , the third sub-coupling part 1811 and the fourth sub-coupling part 1812 may be trapezoidal as shown in FIGS. 9 and 10 to increase the area of the sub-coupling parts. Of course, the shapes of the first sub-coupling portion 1711, the second sub-coupling portion 1712, the third sub-coupling portion 1811 and the fourth sub-coupling portion 1812 are not limited to this, and may also be other rectangles, circles, and butterfly shapes. This embodiment of the present application does not limit this.

It should be noted that, in actual production, the first sub-coupling portion 1711 and the second sub-coupling portion 1712 only need to be approximately symmetrically arranged, and do not need to be strictly symmetrically arranged. Similarly, the third sub-coupling portion 1811 and the fourth sub-coupling portion 1812 only need to be approximately symmetrically arranged, and do not need to be strictly symmetrically arranged.

It can be understood that, as shown in FIG. 10 , the first sub-feeding part 1721 and the second sub-feeding part 1722 may be distributed on both sides of the center line L5 . Similarly, as shown in FIG. 9 , the third sub-feeding portion 1821 and the fourth sub-feeding portion 1822 may also be distributed on both sides of the center line L5. Wherein, the first sub-feeding part 1721 and the second sub-feeding part 1722, the third sub-feeding part 1821 and the fourth sub-feeding part 1822 may not be strictly symmetrically arranged.

As shown in FIG. 11 , FIG. 11 is a schematic diagram of electrical connection of the first vibrator unit and the second vibrator unit shown in FIG. 8 . The first sub-coupling part 1711 and the first sub-feeding part 1721 can form the first feeding structure 173; the second sub-coupling part 1712 and the second sub-feeding part 1722 can form the second feeding structure 174; the third The sub-coupling part 1811 and the third sub-feeding part 1821 may form the third feeding structure 183 ; the fourth sub-coupling part 1812 and the fourth sub-feeding part 1822 may form the fourth feeding structure 184 .

It can be understood that the first feeding structure 173 , the second feeding structure 174 , the third feeding structure 183 and the fourth feeding structure 184 may be arranged around the center line L5 . The radiation arm 141 , the second radiation arm 142 , and the third radiation arm 151 and the fourth radiation arm 152 of the second vibrator unit 150 may each include a head end and an end. For example, the first radiation arm 141 includes a head end 1411 and an end 1412 . Wherein, each feeding structure can be connected to the head end of one radiating arm, and each sub-radiating part can be connected to the end of one radiating arm.

Exemplarily, the head end 1411 of the first radiation arm 141 may be connected to the first sub-coupling portion 1711 of the first feeding structure 173 , and the end 1412 of the first radiation arm 141 may be connected to the first sub-radiation portion 161 . The head end of the second radiation arm 142 may be connected with the second sub-coupling part 1712 of the second feeding structure 174 , and the end of the second radiation arm 142 may be connected with the second sub-radiation part 162 . The head end of the third radiation arm 151 may be connected to the third sub-coupling part 1811 of the third feeding structure 183 , and the end of the third radiation arm 151 may be connected to the third sub-radiation part 163 . The head end of the fourth radiation arm 152 may be connected with the fourth sub-coupling part 1812 of the fourth feeding structure 184 , and the end of the fourth radiation arm 152 may be connected with the fourth sub-radiation part 164 .

It can be understood that the end of the radiation arm close to the center line L5 may be the head end of the radiation arm, and the end of the radiation arm away from the center line L5 may be the end. The head ends of the four radiating arms may be arranged around the centerline. In the embodiment of the present application, the feeding structure is arranged at the head end of the radiation arm, and the sub-radiation portion is arranged at the end of the radiation arm, so that the overall effective length of the radiation unit formed by the sub-radiation portion and the radiation arm can be longer, and the current path can be longer. longer, which is more conducive to the radiating unit to expand the bandwidth to low frequencies.

It can be understood that the head end and the end of a radiating arm can be located on a line of symmetry to maximize the effective length of the radiating arm. 11 , both the head end 1411 and the end 1412 of the first radiation arm 141 are located on the first symmetry line L1.

In order to further realize the miniaturization of the dual-polarized antenna 100, please refer to FIG. 12, which is a schematic diagram of a second structure of the dual-polarized antenna provided by the embodiment of the present application. The dual-polarized antenna 100 in this embodiment of the present application may further include a reflector 190 . The reflection plate 190 may be located on the side of the first support plate 120 and the second support plate 130 away from the radiation plate 110 , that is, the first support plate 120 and the second support plate 130 may be located between the radiation plate 110 and the reflection plate 190 .

As shown in FIG. 12 , the reflection plate 190 may be directly or indirectly connected with the first support plate 120 and the second support plate 130 , respectively. For example, the first support plate 120 and the second support plate 130 may be connected to the reflection plate 190 by welding, riveting or the like. It can be understood that the embodiment of the present application does not limit the connection manner of the reflection plate 190 to the first support plate 120 and the second support plate 130 .

Please refer to FIG. 13 , which is a schematic structural diagram of the reflector shown in FIG. 12 . The reflection plate 190 in the embodiment of the present application may include a bottom plate 191 and a side wall 192 , and the side wall 192 may be disposed around the edge of the bottom plate 191 . The side wall 192 may be formed by extending from the edge of the bottom plate 191 in a direction away from the bottom plate 191 , for example, the side wall 192 may extend toward one side of the first support plate 120 and the second support plate 130 ; for example, the side wall 192 may also be It extends toward the side away from the first support plate 120 and the second support plate 130 . It can be understood that, in the dual-polarized antenna 100 of the embodiment of the present application, the reflective plate 190 can be set to concentrate the signals radiated by the first vibrator unit 140 and the second vibrator unit 150 to improve the gain.

It can be understood that the reflector 190 can be used as a ground plane. That is, the first sub-coupling part 1711 and the second sub-coupling part 1712 of the first balun feeding structure 170 and the third sub-coupling part 1811 and the fourth sub-coupling part of the second balun feeding structure 180 The grounding end of 1812 can be directly connected to the reflector 190 by welding, riveting, etc., so as to realize grounding.

Since the size of the reflector 190 is smaller than the half wavelength of the current frequency, the first oscillator unit 140 and the second oscillator unit 150 will generate back radiation. Therefore, the size (length, width) of the bottom plate 191 of the reflector 190 in actual production is generally Will be greater than half wavelength, eg greater than half wavelength of 2496MHz frequency - 60mm x 60mm. However, the reflective plate 190 of the embodiment of the present application is provided with side walls 192 on the edge of the bottom plate 191, which can suppress the backward radiation. Therefore, the size of the bottom plate 191 of the reflective plate 190 of the embodiment of the present application can be smaller than half wavelength, for example, at 2496 MHz The bottom can be 50mm×50mm, which is obviously lower than the minimum size of the related art. Therefore, the structure of the dual-polarized antenna 100 in the embodiment of the present application can reduce the size of the reflector 190 on the premise of ensuring the radio frequency performance of the dual-polarized antenna 100, thereby further realizing the miniaturization of the antenna.

Wherein, the side wall 192 may surround one or more edges of the bottom plate 191 , for example, four edges of the bottom plate 191 are surrounded in FIG. 13 .

The extension direction of the side wall 192 may extend in a direction away from the radiation plate 110 . In this case, the side wall 192 may be formed by extending from the edge of the bottom plate 191 in a direction away from the radiation plate 110 . Certainly, the extension direction of the side wall 192 may be extended toward the radiation plate 110 , in this case, the side wall 192 may be formed by extending the edge of the bottom plate 191 toward the radiation plate 110 .

It can be understood that, when the side wall 192 is formed by the edge of the bottom plate 191 toward the direction of the radiation plate 110, on the one hand, in the thickness direction, the side wall 192 will not occupy additional space, and the small size of the dual-polarized antenna 100 can be realized. On the other hand, the distance between the side wall 192 and the reflection plate 190 is closer, and the side wall 192 can be coupled with the first vibrator unit 140 and the second vibrator unit 150, so that the first vibrator unit 140 and the second vibrator unit 150 can be widened. The bandwidth of the dipole unit 150 .

It can be understood that, when the side wall 192 is formed by the edge of the bottom plate 191 toward the radiation plate 110 , the angle between the side wall 192 and the bottom plate 191 may be greater than or equal to 90 degrees and less than 180 degrees. For example, the included angle may be 90 degrees, 110 degrees or 120 degrees. The specific angle of the included angle is not limited in the embodiments of the present application. At this time, the side wall 192 forms an outwardly expanded shape, and the side wall 192 and the bottom plate 191 can reflect more backward radiation, so that the backward radiation can be better suppressed.

It can be understood that, holes 193 may be reserved on the bottom plate 191 of the reflection plate 190 to facilitate the assembly of the reflection plate 190 with the customer front equipment 10 .

It can be understood that the material of the reflector 190 can be stainless steel nickel-plated material, and the thickness of the reflector 190 can be 0.5mm. At this time, the reflector 190 can take into account welding and antenna strength to ensure that the customer's front-end device 10 falls. Reliability of dual polarized antenna 100 .

Based on the above structure, the size of the radiation surface of the dual-polarized antenna 100 in the embodiment of the present application (that is, the size of the first surface 111 of the radiation plate 110 ) can be 35 mm×35 mm, which is far smaller than 42 mm×42 mm in the related art Therefore, the miniaturization of the dual-polarized antenna 100 can be realized. And the height of the first surface 111 (radiation surface) of the dual-polarized antenna 100 in the embodiment of the present application from the bottom plate 191 of the reflector 190 may be 15.2 mm, which is much smaller than 16.8 mm in the related art. The volume of the dual-polarized antenna 100 Significantly reduced and easy to integrate into space-constrained CPE units.

Based on the above structure, the effective length of the dual-polarized antenna 100 in the embodiment of the present application is relatively long, and can transmit low-frequency, intermediate-frequency, and high-frequency radio frequency signals, and can transmit third-generation mobile communication (the 3th Generation mobile communication technology, 3G for short) signals. , the 4th Generation mobile communication technology (the 4th Generation mobile communication technology, referred to as 4G) signal, the fifth generation mobile communication (the 5th Generation mobile communication technology, referred to as 5G) signal. Exemplarily, the dual-polarized antenna 100 of this embodiment of the present application may cover B41 (2496MHZ to 2690MHz), B42 (3400MHZ to 3600MHz) of 4G, and n41 (2515MHZ to 2675MHz), n77 (3300MHZ to 4200MHZ), n78 (3300MHZ to 3800MHZ), n79 (4400MHZ to 5000MHZ) and so on.

Based on the above structure, the dual-polarized antenna 100 of the embodiment of the present application has good isolation. Please refer to FIG. 14 . FIG. 14 is a graph of S21 parameters of the first dipole unit and the second dipole unit of the dual-polarized antenna provided by the embodiment of the present application. As can be seen from FIG. 14 , the dual-polarized antenna 100 is between 2.49 GHz and 4.900 GHz, and the isolation between the first vibrator unit 140 and the second vibrator unit 150 of the dual-polarized antenna 100 is greater than 24 dB, which can reduce two In view of the correlation between them, when the dual-polarized antenna 100 is used for multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO for short) transmission, the rate of MIMO transmission can be improved.

Based on the above structure, in order to improve the radiation efficiency of the dual-polarized antenna 100, at least one of the radiation plate 110, the first support plate 120, and the second support plate 130 can be made of polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), The radiation plate 110 , the first support plate 120 and the second support plate 130 made of PTFE can effectively reduce the dielectric loss at frequencies above 3.8 GHz and improve the radiation efficiency of the first vibrator unit 140 and the second vibrator unit 150 .

For example, please refer to FIG. 15 , which is a radiation efficiency curve diagram of the dual-polarized antenna provided by the embodiment of the present application. As can be seen from FIG. 15 , when the frequency of the radio frequency signal transmitted by the dual-polarized antenna 100 is above 3.8 GHz, the measured efficiency of the dual-polarized antenna 100 may be greater than 70%. Therefore, the dual-polarized antenna 100 of the embodiment of the present application It can fully meet the transmission needs of 5G signals.

Based on the above structure, the dual-polarized antenna 100 of the embodiment of the present application does not reduce the gain of the antenna on the basis of satisfying miniaturization. Please refer to FIG. 16 and FIG. 17 . FIG. 16 is a first stereo radiation pattern of the dual-polarized antenna provided by the embodiment of the present application. FIG. 17 is a plane radiation pattern of the dual-polarized antenna shown in FIG. 16 . It can be seen from FIG. 16 and FIG. 17 that when the dual-polarized antenna 100 transmits a radio frequency signal with a frequency of 2.6 GHz, the gain of the dual-polarized antenna 100 can reach 7.3163.

Please refer to FIGS. 18 and 19 . FIG. 18 is a second stereo radiation pattern of the dual-polarized antenna provided by the embodiment of the present application, and FIG. 19 is a planar radiation pattern of the dual-polarized antenna shown in FIG. 18 . It can be seen from FIG. 18 and FIG. 19 that when the dual-polarized antenna 100 transmits a radio frequency signal with a frequency of 3.5 GHz, the gain of the dual-polarized antenna 100 can reach 7.6277.

Moreover, according to the antenna theory, when the distance between the radiation surface of the antenna and the reflector 190 is 1/4λ, the ideal gain is about 8.2. However, in the embodiment of the present application, when the dual-polarized antenna 100 radiates a radio frequency signal in the 2.6 GHz frequency band, the height of the first surface 111 and the bottom plate 191 of the reflector 190 is 15.2 mm, which is only 0.115λ, which is far less than 1 under the ideal gain. /4λ, and the gain of the dual-polarized antenna 100 of the embodiment of the present application can reach 7.3 to 7.6, which is not much different from the ideal gain of 8.2. Therefore, the dual-polarized antenna 100 of the embodiment of the present application can meet the requirements of miniaturization. , without reducing the gain of the antenna.

It should be understood that, in the description of this application, terms such as "first", "second" and the like are only used to distinguish similar objects, and should not be construed as indicating or implying relative importance or implicitly indicating the indicated technology number of features.

The dual-polarized antenna and customer front-end equipment provided by the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein by using specific examples, and the descriptions of the above embodiments are only used to help the understanding of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scope. To sum up, the content of this specification should not be construed as a limitation to the present application.

Claims (11)

1. a dual polarized antenna, is characterized in that, comprises: a radiation plate, the radiation plate includes a first surface and a second surface arranged opposite to each other, and the first surface is provided with a first oscillator unit and a second oscillator unit whose polarization directions are orthogonal to each other; a first support plate, the first support plate is connected to the second surface of the radiation plate; a second support plate, the second support plate is connected to the second surface of the radiation plate, the second support plate is orthogonal to the first support plate, the second support plate and the first support plate support plates collectively support the radiant plate; and an antenna radiation part, the antenna radiation part is located on the first support plate and the second support plate, and the antenna radiation part is respectively electrically connected with the first vibrator unit and the second vibrator unit. 2 . The dual-polarized antenna according to claim 1 , wherein the first dipole unit includes two radiating arms, the second dipole unit also includes two radiating arms, and the antenna radiating part includes four radiating arms. 3 . Each of the sub-radiation parts is connected with one of the radiation arms to jointly radiate radio frequency signals. 3. The dual-polarized antenna according to claim 2, wherein each of the radiating arms comprises a head end and an end, the dual-polarized antenna further comprises four feed structures, each of the feed structures The structure is connected to the head end of one of the radiation arms, and each of the sub-radiation parts is connected to the end of one of the radiation arms. 4. The dual-polarized antenna according to claim 1, wherein the first dipole unit and the second dipole unit each comprise two radiating arms, and the dual-polarized antenna further comprises: a first balun feeding structure, the first balun feeding structure is connected to the first support plate, and the first balun feeding structure is electrically connected to the two radiating arms of the first vibrator unit respectively , so that the currents flowing through the two radiating arms of the first vibrator unit are in the same direction; and A second balun feeding structure, the second balun feeding structure is connected to the second support plate, and the second balun feeding structure is electrically connected to the two radiating arms of the second vibrator unit respectively , so that the currents flowing through the two radiating arms of the second vibrator unit are in the same direction. 5. The dual-polarized antenna according to claim 4, wherein the first balun feeding structure comprises: a first coupling part, one end of the first coupling part is electrically connected to the two radiating arms of the first vibrator unit respectively, and the other end of the first coupling part is grounded; and a first power feeding part, one end of the first power feeding part is used for electrical connection with the coaxial line, and the other end of the first power feeding part is coupled and connected with the first coupling part, so that the flow through the The currents of the two radiating arms of the first vibrator unit are in the same direction. 6. The dual-polarized antenna according to claim 4, wherein the second balun feeding structure comprises: a second coupling part, one end of the second coupling part is electrically connected to the two radiating arms of the second vibrator unit respectively, and the other end of the second coupling part is grounded; and The second power feeding part, one end of the second power feeding part is used for electrical connection with the coaxial line, and the other end of the second power feeding part is coupled and connected to the second coupling part, so that the flow through the The currents of the two radiating arms of the second vibrator unit are in the same direction. 7 . The dual-polarized antenna according to claim 1 , wherein at least one of the radiation plate, the first support plate, and the second support plate comprises polytetrafluoroethylene. 8 . plate. 8. The dual-polarized antenna according to any one of claims 1 to 6, further comprising: a reflecting plate, the first supporting plate and the second supporting plate are located between the radiation plate and the reflecting plate, and the reflecting plate is respectively connected with the first supporting plate and the second supporting plate; Wherein, the reflecting plate includes a bottom plate and a side wall, and the side wall is arranged around the edge of the bottom plate. 9 . The dual-polarized antenna according to claim 8 , wherein the side wall is located between the bottom plate and the radiation plate. 10 . 10 . The dual-polarized antenna according to claim 9 , wherein the included angle between the side wall and the bottom plate is greater than or equal to ninety degrees. 11 . 11. A customer front-end equipment, characterized in that, comprising: A dual-polarized antenna comprising the dual-polarized antenna of any one of claims 1 to 10; and A circuit board; the circuit board is electrically connected with the dual-polarized antenna, so that the dual-polarized antenna transmits radio frequency signals.

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