CN215119235U - PCB dual-polarization radiating element - Google Patents

Abstract

The utility model discloses a PCB dual polarization radiating element, it includes: the antenna comprises a dielectric plate, and a radiation surface and a feed surface which are respectively formed on two sides of the dielectric plate, wherein the radiation surface comprises four same half-wave oscillators; the feed surface comprises four hook-shaped feed lines which are correspondingly coupled and connected with the half-wave oscillators respectively, and two hook-shaped feed lines on the opposite sides are connected to form a polarized feed line. The utility model provides a PCB dual polarization radiating element overlooks the state down eight limit shapes or class eight limit shapes are arranged into to four half-wave oscillators, the feeder face include respectively with four hook-like feeders that the half-wave oscillator corresponds coupling connection, so the design makes radiating element possesses high performance, ultra wide band, good characteristics such as miniaturization. The antenna can be applied to various antennas, has strong integrity and no redundant parts, and is easy to produce and assemble.

Description

PCB dual-polarization radiating element

Technical Field

The utility model relates to an antenna technology field especially relates to a PCB dual polarization radiating element.

Background

The radiation unit can transmit and receive wireless signals just like the heart of the antenna, and the performance of the radiation unit has direct influence on various indexes of the whole antenna.

Through the technological change of many generations, the antenna element develops various materials and processing techniques. The method mainly comprises metal die casting, metal plate stamping, PCB printing, plastic electroplating and laser sintering molding.

The metal die casting process is the most mature in all processes, various performance indexes are excellent, but the die opening period is long, the cost is high, and the metal die casting process is not suitable for a customized and small-batch production mode in the 5G era; while plastic electroplating and laser sintering techniques are immature. The cost is high, and the technical indexes such as passive intermodulation and the like are not generally accepted by the industry.

The PCB printing process technology is mature, mold opening is not needed, the processing period is short, the cost is low, the unit consistency is good, the unit performance and the cost are accepted by the industry, and the method has strong competitiveness under the production mode of customization and small batch.

In order to meet the rapid development of modern communications. The antenna tends to be new frequency spectrum, ultra wide band, miniaturization and integration. Therefore, the development of a radiation unit with high performance, ultra-wideband and miniaturization is of great significance.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a PCB dual polarization radiating element.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a PCB dual polarized radiating element, comprising: the antenna comprises a dielectric plate, and a radiation surface and a feed surface which are respectively formed on two sides of the dielectric plate, wherein the radiation surface comprises four same half-wave oscillators; the feed surface comprises four hook-shaped feed lines which are correspondingly coupled and connected with the half-wave oscillators respectively, and two hook-shaped feed lines on the opposite sides are connected to form a polarized feed line.

As a preferred embodiment of the PCB dual-polarized radiating element provided in the present invention, the half-wave oscillator includes a balun arm and a radiating arm connected to each other, and the balun arm is coupled to the hook-shaped feeder; the balun arm and the radiating arm are both about 1/4 lambda in length, and lambda is the central frequency wavelength of the radiating element.

As the utility model provides a PCB dual polarization radiating element's a preferred implementation mode, the radiation arm is including locating respectively the radiation sub-arm of balun arm top both sides, radiation sub-arm tip orientation certain angle is buckled into to balun arm one side.

As a preferred embodiment of the PCB dual polarized radiating element provided in the present invention, the certain angle is 45 °.

As the utility model provides a PCB dual polarization radiating element's a preferred implementation, the radiation sub-arm is connected the one end of balun arm is provided with the arch, bellied width slightly is less than half the width of balun arm.

As a preferred embodiment of the PCB dual-polarized radiating element provided by the present invention, three rectangular grooves are formed in the balun arm along the length direction thereof; and two sides of the balun arm are also connected with an L-shaped copper-clad layer.

As a preferred embodiment of the PCB dual-polarized radiating element provided in the present invention, the L-shaped copper-clad layer and the balun arm have an included angle of 60 °.

As a preferred embodiment of the dual polarized radiating element of PCB, it is adjacent be equipped with the rectangle between the radiation sub-arm and cover the copper layer, its length equals the arm width of radiation sub-arm.

As a preferred embodiment of the PCB dual-polarized radiating element provided in the present invention, the hook-shaped feeder is

And (4) shaping.

As a preferred embodiment of the dual polarized radiating element of PCB, the feeder circuit quadrature department of two polarizations, the feeder circuit of one of them polarization passes through the through-hole and follows the connecting wire of radiating surface connects, the connecting wire is located the breach department of radiating surface.

The utility model discloses following beneficial effect has:

the utility model provides a PCB dual polarization radiating element overlooks the state down eight limit shapes or class eight limit shapes are arranged into to four half-wave oscillators, the feeder face include respectively with four hook-like feeders that the half-wave oscillator corresponds coupling connection, so the design makes radiating element possesses high performance, ultra wide band, good characteristics such as miniaturization. The antenna can be applied to various antennas, has strong integrity and no redundant parts, and is easy to produce and assemble.

Drawings

Fig. 1 is a schematic front view of the PCB dual-polarized radiation unit of the present invention;

fig. 2 is a schematic back view of the PCB dual-polarized radiating element of the present invention.

Fig. 3 is an exploded schematic view of the PCB dual-polarized radiating element of the present invention, in which the hole sites on the dielectric plate are hidden.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present embodiment provides a PCB dual-polarized radiating element, which includes:

a dielectric sheet 1;

a radiation surface formed on the front surface of the dielectric board 1 in a copper clad manner; the radiation surface comprises four same half-wave vibrators 2, and the four half-wave vibrators 2 are arranged into an octagon shape or an octagon-like shape in a top view state;

a power feeding surface formed on the back surface of the dielectric board 1 in a copper-clad manner; the feed surface comprises four hook-shaped feed lines 3 which are correspondingly coupled and connected with the half-wave vibrators 2 respectively; two hook-shaped feeder lines 3 on opposite sides are connected to form a polarized feeder line, namely a square common ground is formed at the geometric center of the dielectric plate 1, every two half-wave oscillators 2 are in one group, one group is in the vertical direction, one group is in the horizontal direction, one group corresponds to one polarization, and the two polarizations are orthogonal to each other.

The half-wave oscillator 2 comprises a balun arm 21 and a radiation arm which are connected, and the balun arm 21 is coupled with the hook-shaped feeder 3. The balun arm 21 and the radiating arm are both about 1/4 λ in length, λ being the wavelength of the central frequency of the radiating element. Further, the radiating arm includes radiating sub-arms 22 respectively disposed at two sides of the top of the balun arm 21, and an end of the radiating sub-arm 22 is bent toward one side of the balun arm 21 at an angle, preferably, the angle is 45 °, so that the area of the substrate can be utilized to the maximum extent.

A bulge 23 is arranged at one end of the radiation sub-arm 22 connected with the balun arm 21, and the width of the bulge 23 is slightly smaller than half of the width of the balun arm 21; the radiation current and the impedance matching are adjusted by the arrangement of the protrusion 23.

Further, three rectangular grooves 24 are arranged in the balun arm 21 along the length direction thereof; the two sides of the balun arm 21 are further connected with an L-shaped copper-clad layer 25, and preferably, an included angle a between the L-shaped copper-clad layer 25 and the balun arm 21 is about 60 °. A rectangular copper-clad layer 26 is further disposed between adjacent radiating sub-arms 22, and the length of the copper-clad layer is equal to the arm width of the radiating sub-arm 22. It should be noted that the dimensions and angles of the rectangular copper-clad layer 26, the rectangular groove 24, and the L-shaped copper-clad layer 25 can be changed according to actual situations, and are all used for optimizing the radiation current and impedance matching of the radiation unit.

The hook-shaped feeder line 3 is

And the specially-shaped feeder 3 is adopted to improve the capability of the feeding surface for feeding the radiation surface and adjust the impedance matching of the radiation unit. The bottoms of the two hook-shaped feed lines 3 positioned on the opposite sides are connected in pairs to form two polarized feed lines. In order to avoid the conduction of the two polarizations, the feed lines of the two polarizations are orthogonal, one of the feed lines of the polarizations is connected with the connecting line of the radiation surface through a through hole 31, the position corresponds to the public ground part of the opposite surface, and an elliptic notch 27 is arranged at the corresponding position of the public ground for the connecting line to pass through.

Furthermore, a feed hole 4 is formed in the middle of the two groups of feed lines, and the other end of the feed hole 4 corresponds to the central position of the bottom of the balun arm 21 of two half-wave oscillators 2 in the radiation surface; the feeding hole 4 can be directly connected with a 50-3 cable for feeding.

The dielectric plate 1 is preferably but not limited to a square substrate, four fixing holes 5 may be formed in diagonal portions of the square substrate where no copper is coated, and the antenna reflection plate may fix the radiation unit through the fixing holes 5 by using insulating support glue columns.

The utility model discloses following beneficial effect has:

the utility model discloses there are good characteristics such as high performance, ultra wide band, miniaturization. Can be applied to various antennas. And the integration is strong, no redundant parts exist, and the production and assembly are easy. The PCB dual-polarized radiation unit adopts a mode of directly feeding two half-wave oscillators 2, and the balun adopts an external metal die-casting balun; the radiating surface of the utility model adopts four vibrators to form an octagonal structure, and adopts coupled feed, thereby greatly improving the performance and bandwidth of the radiating unit; meanwhile, the balun arm 21 is contained in the radiating surface, external connection of a balun is not needed, the integrity of the radiating unit is enhanced, and the cost is reduced. The radiation arm is bent at a specific angle, so that the volume of the radiation unit is ensured, and the bandwidth is also ensured.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (10)

1. A PCB dual polarized radiating element, comprising: the antenna comprises a dielectric plate, and a radiation surface and a feed surface which are respectively formed on two sides of the dielectric plate, wherein the radiation surface comprises four same half-wave oscillators; the feed surface comprises four hook-shaped feed lines which are correspondingly coupled and connected with the half-wave oscillators respectively, and two hook-shaped feed lines on the opposite sides are connected to form a polarized feed line.

2. The PCB dual-polarized radiating element of claim 1, wherein the half-wave oscillator comprises a balun arm and a radiating arm which are connected, and the balun arm is coupled with the hook-shaped feeder; the balun arm and the radiating arm are both about 1/4 lambda in length, and lambda is the central frequency wavelength of the radiating element.

3. The PCB dual polarized radiating element according to claim 2, wherein the radiating arms comprise radiating sub-arms respectively disposed at two sides of the top of the balun arm, and the end portions of the radiating sub-arms are bent at an angle toward one side of the balun arm.

4. The PCB dual polarized radiating element of claim 3, wherein the certain angle is 45 °.

5. The PCB dual-polarized radiating element of claim 3 or 4, wherein a protrusion is arranged at one end of the radiating sub-arm connected with the balun arm, and the width of the protrusion is slightly smaller than half of the width of the balun arm.

6. The PCB dual-polarized radiating element of claim 3, wherein three rectangular slots are arranged in the balun arm along the length direction thereof; and two sides of the balun arm are also connected with an L-shaped copper-clad layer.

7. The PCB dual polarized radiating element of claim 6, wherein the angle between the L-shaped copper clad layer and the balun arm is 60 °.

8. The PCB dual polarized radiating element of claim 3, wherein a rectangular copper clad layer is disposed between adjacent radiating sub-arms, and the length of the rectangular copper clad layer is equal to the arm width of the radiating sub-arms.

9. The PCB dual polarized radiating element of claim 1, wherein the hooked feed line is

And (4) shaping.

10. The PCB dual polarized radiating element according to claim 1 or 9, wherein two polarized feeding lines are orthogonal, wherein one of the polarized feeding lines is connected by a through hole from a connection line of the radiating surface, the connection line being located at a notch of the radiating surface.

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