CN219610741U - High-power ultra-wideband directional antenna - Google Patents

Abstract

The utility model discloses a high-power ultra-wideband directional antenna, which is characterized in that a large amount of structural improvement optimization is carried out on an antenna product aiming at a use environment, through comparison of the characteristics of antenna materials, all key components are made of metal with higher heat dissipation and power bearing as carriers, and a metal guide post is used for carrying out short-circuit contact on an antenna oscillator and a metal reflecting plate at an matching point of impedance matching of the antenna oscillator. Even if the antenna is overloaded at the end of the antenna element due to instantaneous large voltage and large current generated by lightning strike, the antenna can be continuously downwards conducted to the metal reflecting plate through the guide post to form a loop, and then conducted to the ground again to effectively release pressure, drain and dissipate heat; the antenna product which can meet the high-power use requirement and simultaneously ensure the excellent lightning protection can be used, the frequency bandwidth can be ultra-wideband, and the antenna product can cope with communication networks of various different systems.

Description

High-power ultra-wideband directional antenna

Technical Field

The utility model relates to the technical field of mobile communication antennas, in particular to a high-power ultra-wideband directional antenna.

Background

The antenna has various types, and different use environments need to be matched with a proper antenna product to better play the role of the antenna, so that a stable communication network can be ensured. Particularly in some areas where thunderstorms are frequent, the common antenna cannot meet severe weather such as frequent lightning strokes and the like, and the antenna or equipment cannot be burnt. In order to achieve higher cost performance, operators or constructors generally use small-sized equipment and antennas to meet the coverage range of a communication network, and conventional iron tower type network distribution is not adopted, but the transmitting power of the small-sized equipment is correspondingly improved to achieve the coverage effect.

The utility model discloses a communication antenna protection device for building floors, which comprises a vertical rod, wherein the bottom of the vertical rod is provided with a grounding seat, the top of the outer wall of the vertical rod is fixedly provided with an antenna assembly through a connector, the grounding seat comprises a base, the top of the base is provided with a limiting hole, the inner side of the base is fixedly connected with two conductive blocks, the two conductive blocks are symmetrically distributed, each conductive block comprises a mounting plate distributed along the horizontal direction, the bottom of the inner side of the mounting plate is fixedly connected with a clamping seat, and clamping grooves are formed in the inner sides of the mounting plate and the clamping seat. This communication antenna protector that building floor was used utilizes pole setting, conducting block and base to realize antenna module's ground connection through being provided with the ground connection seat, when meetting thunderstorm weather, can introduce the ground with thunder and lightning, has avoided antenna module's damage, the effectual antenna module that has protected.

According to the technical scheme, lightning stroke damage of the antenna circuit can be avoided to a certain extent, but protection of the antenna element is still insufficient. The rated maximum power of the conventional small antenna product is generally only 50W, and the conventional small antenna product is basically in a monopole structure, the monopole structure and the ground are in an open circuit state, when the small antenna product is struck by lightning, the instantaneous power surge caused by the lightning strike can be conducted to the monopole oscillator, when the energy is distributed on the monopole oscillator and cannot be conducted continuously, an ultra-high temperature melting feed point is easily generated, so that the antenna or equipment is burnt out, and the serious fire risk can be caused, so that the large-power ultra-wideband directional antenna needs to be proposed.

Disclosure of Invention

The utility model aims to provide a high-power ultra-wideband directional antenna so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a high power ultra-wideband directional antenna, comprising:

the antenna comprises a reflecting plate, an antenna housing and an antenna oscillator;

the antenna oscillator is connected with the reflecting plate through a flow guide post, and the antenna oscillator and the reflecting plate are arranged in parallel;

the two ends of the guide post are respectively and electrically connected with the antenna oscillator and the reflecting plate through metal screws.

As a preferred implementation mode of the high-power ultra-wideband directional antenna, the antenna housing is fixedly arranged on the reflecting plate through screws, and the antenna housing is arranged outside the feed plate, the antenna oscillator, the guide post and the grounding plate.

As a preferred implementation mode of the high-power ultra-wideband directional antenna provided by the utility model, a coaxial cable is arranged at the bottom of the antenna housing, one end of the coaxial cable is connected with a coaxial connector, the cable outer conductor at the other end of the coaxial cable is connected with the feed plate, and the cable inner conductor is connected with the antenna oscillator.

As a preferred implementation mode of the high-power ultra-wideband directional antenna, the coaxial connector is set to be a coaxial connector with impedance of 50 omega, and the coaxial cable is set to be a coaxial cable with impedance of 50 omega.

As a preferred implementation mode of the high-power ultra-wideband directional antenna provided by the utility model, the guide post comprises a cylindrical conductive post, a post core is arranged in the conductive post, inner screw holes are formed in two ends of the conductive post, which are positioned at the post core, and two ends of the conductive post are respectively fixedly arranged on the antenna oscillator and the reflecting plate through the inner screw holes and fixing screws.

As a preferred implementation mode of the high-power ultra-wideband directional antenna provided by the utility model, one end of the column core, which is positioned in the conductive column, is fixedly connected with the pressing sheet, the other end of the column core, which is positioned in the conductive column, is fixedly connected with the inserting terminal, one group of fixing screws at two ends of the conductive column are hollow screws, a crown spring is arranged in a cavity of each hollow screw, the hollow screws are arranged in inner screw holes in a threaded manner so that the inserting terminal is inserted into the crown spring, and the fixing screws are arranged in the inner screw holes in a threaded manner so that the pressing sheet is attached to the end face of the column core.

As a preferred implementation mode of the high-power ultra-wideband directional antenna provided by the utility model, the guide post comprises a butt joint post, screw holes are formed in two ends of the butt joint post, contact spring plates are arranged in two ends of the butt joint post, a metal screw at one end of the butt joint post penetrates through the antenna oscillator, a metal screw at the other end of the butt joint post penetrates through the reflecting plate, and a locking nut matched with the metal screw is arranged in the butt joint post.

As a preferred implementation mode of the high-power ultra-wideband directional antenna, the feed plate is of a U-shaped encircling structure made of metal, the grounding plate is of a right-angle plane structure made of metal, and the feed plate and the grounding plate are annularly arranged around the antenna oscillator.

As an optimized implementation mode of the high-power ultra-wideband directional antenna, the antenna mounting seat for mounting the antenna element is fixedly mounted on the feed plate, and the antenna element is a circular arc-shaped plane element made of metal.

Compared with the prior art, the utility model has the beneficial effects that:

through the design of structures such as guide post and reflecting plate, in addition through analyzing this kind of adverse circumstances and antenna structure, carry out a large amount of structural improvement optimization to the antenna product to the service environment. Through comparing the characteristics of the antenna materials, all key components adopt metals with higher heat dissipation and power bearing as carriers; and at the same time, the antenna element and the metal reflecting plate are in short-circuit contact by using the metal guide post at the matching point of the impedance matching of the antenna element. Even if the antenna is overloaded at the end of the antenna element due to the instantaneous large voltage and large current generated by lightning strike, the antenna can be continuously conducted downwards to the metal reflecting plate through the flow guide post, so that a high-power loop is formed, and then the loop is conducted to the ground again to effectively release pressure, drain and dissipate heat. The utility model can ensure the antenna products with excellent lightning protection on the premise of meeting the use requirement of 300W high power, and the frequency bandwidth can be ultra-wideband, thus being capable of coping with communication networks of different systems; through the shape transformation to the guide post, the guide post can obtain better electric contact effect when the guide post is matched with a corresponding installation mode.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic diagram of a split structure of the present utility model;

FIG. 4 is a second schematic diagram of the split structure of the present utility model;

FIG. 5 is a schematic diagram of an embodiment of a flow guiding column according to the present utility model;

FIG. 6 is a schematic view of another embodiment of a guide post according to the present utility model;

FIG. 7 is a port voltage standing wave ratio plan view of the present utility model;

FIG. 8 is a schematic view of the measured horizontal plane radiation direction of the present utility model;

fig. 9 is a schematic view of the measured vertical plane radiation direction of the present utility model.

In the figure: 1. a coaxial connector; 2. a coaxial cable; 3. an antenna housing; 4. a feed plate; 5. an antenna element; 6. a flow guiding column; 7. a ground plate; 8. a reflection plate; 9. a fixing screw; 10. a hollow screw; 11. an antenna mounting base; 61. a conductive post; 62. a column core; 63. a plug terminal; 64. a crown spring; 65. tabletting; 66. an inner screw hole; 67. butt-joint columns; 68. a contact spring plate; 69. screw holes; 610. and (5) locking the nut.

Detailed Description

The same reference numbers in different drawings identify the same or similar elements; it should be further understood that terms such as "first," "second," "third," "upper," "lower," "front," "rear," "inner," "outer," "end," "section," "width," "thickness," "region," and the like are merely convenient for a viewer to construct with reference to the drawings and are merely used to facilitate the description of the utility model, and are not limiting of the utility model.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-9, embodiments of the present utility model are provided:

a high power ultra-wideband directional antenna, comprising:

a reflecting plate 8, a radome 3 and an antenna element 5;

the feed plate 4 and the grounding plate 7 are electrically arranged on the reflecting plate 8, the antenna oscillator 5 is connected with the reflecting plate 8 through the guide post 6, and the antenna oscillator 5 and the reflecting plate 8 are arranged in parallel;

the two ends of the guide post 6 are respectively and electrically connected to the antenna element 5 and the reflecting plate 8 through metal screws.

Example 1

The antenna element 5 is a circular arc-shaped plane element and is made of metal; the arc-shaped profile is a key element for realizing ultra-wideband; the planar size of the antenna element 5 is designed to be 1/4 lambda with the lowest initial frequency, wherein lambda is the working wavelength of the frequency division coplanar ultra-wideband antenna element, and the arc-shaped outline is not limited to a standard arc shape, and can be set to be a polygon similar to the arc-shaped outline.

The antenna housing 3 is fixedly arranged on the reflecting plate 8 through screws, and the antenna housing 3 is covered outside the feed plate 4, the antenna oscillator 5, the guide post 6 and the grounding plate 7; as shown in fig. 3, the radome 3 is mounted with the reflecting plate 8 by screws at four corners, the radome 3 protects key components, and a yielding notch for the coaxial cable 2 to pass through is arranged at the bottom of the radome 3; the bottom of the reflecting plate 8 is provided with a locking wire clamping seat for positioning the coaxial cable 2.

The bottom of the antenna housing 3 is provided with a coaxial cable 2, one end of the coaxial cable 2 is connected with a coaxial connector 1, the cable outer conductor at the other end of the coaxial cable 2 is connected with a feed plate 4, and the cable inner conductor is connected with an antenna element 5. The coaxial connector 1 is provided as a coaxial connector having an impedance of 50Ω, and the coaxial cable 2 is provided as a coaxial cable having an impedance of 50Ω.

Example two

When the device is particularly used, the guide post 6 is cylindrical and made of metal; one end of the guide post 6 is fixed on the reflecting plate through a metal screw, and the other end of the guide post is used for fixing the antenna element by the metal screw to be parallel to the reflecting plate, as shown in fig. 5;

as an embodiment of the guide post 6, the guide post 6 includes a cylindrical conductive post 61, a post core 62 is disposed inside the conductive post 61, two ends of the conductive post 61 located at the post core 62 are provided with inner screw holes 66, and two ends of the conductive post 61 are respectively and fixedly mounted on the antenna oscillator 5 and the reflecting plate 8 by matching the inner screw holes 66 with fixing screws 9.

The antenna element 5 is installed into the inner screw holes 66 at the two ends of the conductive post 61 through the metal screw penetrating the antenna element 5 or the reflecting plate 8 in a threaded manner, and the antenna element 5 is electrically connected with the conductive post 61 through being directly contacted with the conductive post 61 or through the metal screw and the conductive post 61;

one end that post core 62 is located inside conductive post 61 fixedly connected with preforming 65, the other end that post core 62 is located inside conductive post 61 fixedly connected with grafting terminal 63, one of them set up to cavity screw 10 of set screw 9 at conductive post 61 both ends, cavity screw 10's cavity is inside to be provided with crown spring 64, cavity screw 10 screw thread installation makes grafting terminal 63 peg graft in crown spring 64 in interior screw 66, set screw 9 screw thread installation makes preforming 65 laminating in post core 62 terminal surface in interior screw 66. Through setting up preforming 65 in the one end inside of electric pole 61, when set screw 9 runs through antenna element 5 and screw up, set screw 9's tip supports preforming 65 makes its deformation, thereby make set screw 9 carry out the electrical property butt joint through preforming 65 and post core 62, thereby avoid the too little problem of area of contact, grafting terminal 63 has also obtained better electrical contact effect in the inside of crown spring 64 equally, the crown spring possesses very high reliability, pull out the power warm and is moderate, the loop resistance is little, the antidetonation grade, advantages such as shock resistance, be the preferred contact piece of modern connector jack, better electrical contact makes guide post 6 can bear great electric current.

The metal flow guiding column 6 is one of key elements for realizing lightning protection, the cylindrical flow guiding column is not limited to be cylindrical, and can be also arranged as a plane metal plate with other shapes, as shown in fig. 6;

example III

As another embodiment of the guide post 6, the guide post 6 includes a docking post 67, screw holes 69 are provided at two ends of the docking post 67, contact spring pieces 68 are provided at two ends of the docking post 67, a metal screw at one end of the docking post 67 penetrates through the antenna element 5, a metal screw at the other end of the docking post 67 penetrates through the reflecting plate 8, and a locking nut 610 mounted in cooperation with the metal screw is provided in the docking post 67. When the metal screw penetrates through the antenna element 5 and the reflecting plate 8 to be matched with the locking nut 610, the butt-joint column 67 is tightly attached to the side surfaces of the antenna element 5 and the reflecting plate 8, and meanwhile, the contact elastic sheets 68 at the two ends of the butt-joint column 67 are deformed, so that the guide column 6 can bear larger current due to the same better electric contact.

The power feeding plate 4 is arranged to be a U-shaped encircling structure made of metal materials, the grounding plate 7 is of a right-angle plane structure made of metal materials, and the power feeding plate 4 and the grounding plate 7 are annularly arranged around the antenna oscillator 5. An antenna mounting seat 11 for mounting the antenna element 5 is fixedly mounted on the feed plate 4, and the antenna element 5 is a circular arc-shaped plane element made of metal. As shown in fig. 4, the feed plate 4 and the ground plate 7 are annularly arranged to be matched with the circular arc shape of the antenna element 5;

specifically, the feeding plate 4 is of a U-shaped encircling structure, is connected with a 50 Ω coaxial cable and a 50 Ω coaxial connector, and is made of metal; the grounding plate 7 is of a right-angle plane structure and is made of metal; the feed plate 4 and the ground plate 7 are annularly arranged around the antenna element and are connected with the reflecting plate 8 through metal screws.

As shown in fig. 7-9, the high-power ultra-wideband directional antenna has the following advantages:

(1) The standing wave ratio in the frequency range from 698-960/1710-2700/3300-3800 MHz in the preset frequency of figure 7 is less than or equal to 1.6, so as to achieve good ultra-wideband coverage effect.

(2) When the method is used for signal coverage, the method is compatible with the use requirements of 2G, 3G and 4G communication frequency bands and can meet the requirement of a 5G frequency network.

(3) From fig. 8 and fig. 9, it can be seen that the half power lobe width of the horizontal plane and the vertical plane within the frequency range has uniform and gentle variation, and the amplitude jump of different frequency points caused by ultra-wideband is not serious; the antenna has good directional radiation characteristics in signal concentration.

In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A high power ultra-wideband directional antenna, comprising:

a reflecting plate (8), an antenna housing (3) and an antenna element (5);

the antenna is characterized in that a feed plate (4) and a grounding plate (7) are electrically installed on the reflecting plate (8), the antenna element (5) is connected with the reflecting plate (8) through a flow guide column (6), and the antenna element (5) and the reflecting plate (8) are arranged in parallel;

the two ends of the guide post (6) are respectively and electrically connected with the antenna oscillator (5) and the reflecting plate (8) through metal screws.

2. A high power ultra wideband directional antenna as claimed in claim 1, wherein: the antenna housing (3) is fixedly arranged on the reflecting plate (8) through screws, and the antenna housing (3) is covered outside the feed plate (4), the antenna oscillator (5), the guide post (6) and the grounding plate (7).

3. A high power ultra wideband directional antenna as claimed in claim 1, wherein: the antenna housing (3) bottom is provided with coaxial cable (2), coaxial connector (1) is connected to one end of coaxial cable (2), the cable outer conductor of the other end of coaxial cable (2) is connected with feed board (4), and the cable inner conductor is connected with antenna element (5).

4. A high power ultra wideband directional antenna according to claim 3, wherein: the coaxial connector (1) is configured as a coaxial connector with an impedance of 50Ω, and the coaxial cable (2) is configured as a coaxial cable with an impedance of 50Ω.

5. A high power ultra wideband directional antenna as claimed in claim 1, wherein: the guide post (6) comprises a cylindrical conductive post (61), a post core (62) is arranged in the conductive post (61), inner screw holes (66) are formed in the two ends of the conductive post (61) located at the post core (62), and the two ends of the conductive post (61) are fixedly mounted on the antenna oscillator (5) and the reflecting plate (8) respectively through the inner screw holes (66) and the fixing screws (9).

6. The high power ultra-wideband directional antenna of claim 5, wherein: the utility model discloses a pole piece, including column core (62), screw (10) and connecting terminal (63) are installed in screw hole (66), column core (62) are located inside one end fixedly connected with preforming (65) of conducting column (61), the other end fixedly connected with grafting terminal (63) of column core (62) being located inside conducting column (61), one of them set up to cavity screw (10) of set screw (9) at conducting column (61) both ends, the cavity inside of cavity screw (10) is provided with crown spring (64), cavity screw (10) screw thread installation makes grafting terminal (63) peg graft in crown spring (64), set screw (9) screw thread installation makes preforming (65) laminating in column core (62) terminal surface in interior screw hole (66).

7. A high power ultra wideband directional antenna as claimed in claim 1, wherein: the guide post (6) comprises a butt joint post (67), screw holes (69) are formed in two ends of the butt joint post (67), contact spring pieces (68) are arranged at two ends of the butt joint post (67), metal screws at one end of the butt joint post (67) penetrate through the antenna oscillator (5), metal screws at the other end of the butt joint post (67) penetrate through the reflecting plate (8), and locking nuts (610) matched with the metal screws are arranged in the butt joint post (67).

8. A high power ultra wideband directional antenna according to any of claims 1-7, wherein: the power feeding plate (4) is arranged to be of a U-shaped encircling structure made of metal, the grounding plate (7) is of a right-angle plane structure made of metal, and the power feeding plate (4) and the grounding plate (7) are annularly arranged around the antenna oscillator (5).

9. The high power ultra-wideband directional antenna of claim 8, wherein: an antenna mounting seat (11) for mounting the antenna element (5) is fixedly mounted on the feed plate (4), and the antenna element (5) is a circular arc-shaped plane element made of metal.