CN212810541U

CN212810541U - Antenna oscillator and broadband multi-port omnidirectional antenna using same

Info

Publication number: CN212810541U
Application number: CN202021803257.8U
Authority: CN
Inventors: 黎萍
Original assignee: Foshan Sanshui Duoen Communication Electrical Equipment Co ltd
Current assignee: Foshan Sanshui Duoen Communication Electrical Equipment Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-03-26
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses an antenna element and use its wide band multiport omnidirectional antenna, including the oscillator main part, the oscillator main part is formed by rectangle portion and trapezoidal portion amalgamation, one side of rectangle portion with one side fixed connection of trapezoidal portion, a plurality of parallel arrangement's logical groove is seted up to the inside of rectangle portion, trapezoidal portion is kept away from one side of rectangle portion is seted up flutedly. Through a fish-shaped structure that rectangle portion, trapezoidal portion, logical groove and recess formed, the setting of special fish-shaped structure is in order to carry out impedance match to compromise directional diagram and gain, widened frequency bandwidth, specifically can make the bandwidth extension of oscillator main part 600 increase with drugs 6000 MHz's scope, and the whole volume of local oscillator main part is less, and a plurality of oscillator main parts of being convenient for carry out the array, have widened the capacity of antenna. The special position relation between the isolating sheet and the fish-shaped vibrator main body effectively reduces the interference between the vibrator main bodies.

Description

Antenna oscillator and broadband multi-port omnidirectional antenna using same

Technical Field

The utility model relates to the technical field of antennas, especially, relate to an antenna element and use its wide band multiport omnidirectional antenna.

Background

An omnidirectional antenna, i.e. a horizontal directional pattern shows 360 ° uniform radiation, i.e. no directivity, and a vertical directional pattern shows a beam with a certain width, and generally the smaller the lobe width, the larger the gain.

In the traditional omnidirectional antenna for indoor signal coverage, the oscillator main body of the traditional omnidirectional antenna mainly adopts a cone shape, the overall volume is larger, and when a plurality of cone-shaped oscillators are arrayed, the volume is further enlarged, so that the overall volume of the antenna becomes huge, a larger space needs to be reserved for the installation of the antenna, the omnidirectional antenna is inconvenient to use under the condition of smaller space, and the use scene of the antenna is limited; and the bandwidth of the existing conical oscillator is narrower and is only 698-4000MHz, thereby further limiting the application range of the antenna.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an antenna element and use its wide band multiport omnidirectional antenna, it is too big to aim at solving the volume of its toper oscillator of current omnidirectional antenna, is not convenient for organize battle array dilatation, has restricted the use scene of antenna, and the frequency channel is narrower, the less technical problem of range of application.

In order to achieve the above object, the utility model provides an antenna oscillator, including the oscillator main part, the oscillator main part is formed by rectangle portion and trapezoidal portion amalgamation, one side of rectangle portion with one side fixed connection of trapezoidal portion, a plurality of parallel arrangement's logical groove is seted up to the inside of rectangle portion, trapezoidal portion is kept away from one side of rectangle portion is seted up flutedly.

Preferably, the vibrator main body forms a fish-shaped structure through a rectangular portion and a trapezoidal portion which are arranged in a splicing manner.

Preferably, 2 groups of the through grooves are formed in the rectangular portion, and the through grooves and the grooves are rectangular.

In addition, the utility model also provides a use the wide band multiport omnidirectional antenna of antenna element as above-mentioned any one, including the base, the top of base can be dismantled and be provided with the reflecting plate, the top of reflecting plate is equipped with the oscillator main part, a plurality of the oscillator main part is around the central circumference distribution of base;

the reflecting plate is further provided with a plurality of isolating pieces, and the isolating pieces are located between the adjacent vibrator main bodies.

Preferably, the spacer is T-shaped, and the spacer is as high as the vibrator body.

Preferably, the vibrator further comprises feed lines, the vibrator main bodies are electrically connected with one ends of the feed lines, and the number of the feed lines corresponds to that of the vibrator main bodies;

the center of the base and the reflecting plate is provided with a through hole, and the other end of the feeder line, which is far away from the vibrator main body, penetrates through the through hole.

Preferably, the bottom of the spacer, which is far away from the through hole, is fixedly connected with a first support column, and the spacer is fixedly connected with the base through the arranged first support column;

the bottom of the rectangular portion is fixedly connected with the base through a second supporting column, the middle of the trapezoidal portion is bent downwards to form a connecting plate, and the trapezoidal portion is fixedly connected with the reflecting plate through the connecting plate.

Preferably, the bottom of the rectangular part is fixedly connected with a feed board, and an insulating pad is further arranged between the feed board and the rectangular part;

the feed board is inverted eight-shaped, and the lower end of the inverted eight-shaped feed board is electrically connected with the feed line.

Preferably, the base is provided with a plurality of fasteners, and the feeder line is fixed on the reflecting plate through the fasteners.

Preferably, an outer cover is detachably arranged above the base, and the outer cover covers the reflection plate, the vibrator main body, the isolation sheet and the feeder line.

The utility model discloses an antenna element and use its wide band multiport omnidirectional antenna have following beneficial effect:

1. the special fish-shaped structure is arranged to carry out impedance matching, give consideration to a directional diagram and gain, widen the frequency bandwidth and expand the range of 600 plus 6000 MHz; compared with the traditional conical oscillator, the oscillator main body is smaller in size, after the oscillator main body with the flat structure is arrayed, the size of the whole antenna structure is still smaller, more oscillator main bodies can be conveniently arrayed to expand ports, and therefore the capacity of the antenna is expanded.

2. The special position relation between the isolating sheet and the fish-shaped vibrator main body effectively reduces the interference between the vibrator main bodies.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic diagram of an external structure of a broadband multi-port omnidirectional antenna according to the present invention;

fig. 2 is a schematic diagram of the internal structure of the broadband multi-port omnidirectional antenna of the present invention;

fig. 3 is a schematic top view of the internal structure of the broadband multi-port omni-directional antenna of the present invention;

fig. 4 is a schematic structural diagram of the oscillator main body of the broadband multi-port omnidirectional antenna of the present invention;

fig. 5 is the radiation pattern of the broadband multi-port omni-directional antenna of the present invention at 617 MHz;

fig. 6 is a radiation pattern of the broadband multi-port omni-directional antenna of the present invention at 1710 MHz;

fig. 7 is a radiation pattern of the broadband multi-port omni-directional antenna of the present invention at 3300 MHz;

fig. 8 is a radiation pattern of the broadband multi-port omni-directional antenna of the present invention at 5900 MHz;

fig. 9 is an isolation diagram of the broadband multi-port omni-directional antenna of the present invention;

fig. 10 is a standing wave comparison diagram of the broadband multi-port omni-directional antenna of the present invention;

fig. 11 is a 617MHz radiation pattern of a comparative example conical element antenna of the present invention;

fig. 12 shows the radiation pattern of the present invention for a comparative example conical element antenna at 1710 MHz;

FIG. 13 shows the radiation pattern of the present invention at 3400MHz for a comparative example tapered dipole antenna;

fig. 14 shows the radiation pattern of the comparative example conical element antenna of the present invention at 5850 MHz;

FIG. 15 is the 617MHz radiation pattern of the comparative example rectangular element;

FIG. 16 is the radiation pattern at 1710MHz of a rectangular element of a comparative example;

FIG. 17 is a radiation pattern at 3300MHz for a rectangular vibrator of a comparative example;

FIG. 18 is a radiation pattern at 5900MHz of a rectangular element of a comparative example;

fig. 19 is a graph showing a comparison of standing waves of the rectangular vibrator of the comparative example.

The reference numbers illustrate: 1. a base; 2. a housing; 3. installing a buckle; 4. a reflective plate; 5. a fish-shaped vibrator body; 6. a separator; 7. a first support column; 8. a through hole; 9. a feed board; 10. a connecting plate; 11. A feed line; 12. a rectangular portion; 13. a trapezoidal portion; 14. a groove; 15. a through groove; 16. a rectangular vibrator main body; 17. a second support column; 18. and a fastener.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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 belong to the protection scope of the present invention.

It should be noted that, if directional indications such as up, down, left, right, front, and back … … are provided in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indications are changed accordingly. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In an embodiment of the present invention, as shown in fig. 1 to 19, an antenna oscillator includes an oscillator main body 5, the oscillator main body 5 is formed by splicing a rectangular portion 12 and a trapezoidal portion 13, one side of the rectangular portion 12 and one side of the trapezoidal portion 13 are fixedly connected, a plurality of parallel-arranged through grooves 15 are formed in the rectangular portion 12, the trapezoidal portion 13 is kept away from one side of the rectangular portion 12 is provided with a groove 14.

Specifically, a fish-shaped structure is formed by the rectangular portion 12, the trapezoidal portion 13, the groove 14 and the through groove 15, the special fish-shaped structure is set for impedance matching, and a directional diagram and a gain are taken into consideration, so that the frequency bandwidth is widened, the bandwidth of the oscillator main body can be specifically expanded to the range of 600 plus 6000MHz, the whole volume of the oscillator main body 5 is small, the multiple oscillator main bodies 5 are conveniently arrayed, and the capacity of the omnidirectional antenna is widened. Conventional toper oscillator has taken great installation space in highly, the oscillator main part 5 of fish type structure is planar structure in this scheme, holistic installation space is less, and its gain effect is equivalent with traditional toper oscillator, when carrying out array combination, the antenna installation volume of assembling further reduces, consequently, adopt the oscillator main part 5 of this kind of structure to be convenient for carry out the array, after a plurality of oscillator main parts 5 carry out the array, the whole volume of antenna is still less, thereby can expand to a plurality of ports, if four ports, eight ports etc., make the capacity of antenna further expand.

Further, the vibrator body 5 forms a fish-shaped structure by the rectangular portion 12 and the trapezoidal portion 13 which are provided in a pieced manner. Thus, the special fish-shaped structure formed by the rectangular part 12 and the trapezoidal part 13 is mainly used for impedance matching, and gives consideration to electrical performance indexes such as a directional diagram, gain and the like, and the arrangement of the fish-shaped structure also widens the bandwidth of signals, so that the bandwidth of the oscillator main body 5 can be expanded to the range of 600 plus 6000MHz, and the application range and the application scene of the omnidirectional antenna are widened.

Further, 2 groups of the through grooves 15 are opened inside the rectangular portion 12, and the groove 14 and the through groove 15 are both rectangular. The through grooves 15 and the grooves 14 are mainly used for impedance matching, and the directional diagram is also considered.

In addition, the utility model also provides a use the wide band multiport omnidirectional antenna of antenna element as above-mentioned any one, including base 1, can dismantle above base 1 and be provided with reflecting plate 4, be equipped with above reflecting plate 4 the oscillator main part 5, a plurality of oscillator main part 5 is around the central circumference distribution of base 1; the reflecting plate 4 is further provided with a plurality of isolating pieces 6, and the isolating pieces 6 are located between the vibrator main bodies 5 which are adjacently arranged.

Specifically, in the present embodiment, the fish-shaped transducer main bodies 5 are annularly arranged on the reflection plate 4, the space in the middle can be used for installing the feeder line 11, etc., the transducer main bodies 5 are separated by the spacers 6, and the arrangement direction of the plurality of transducer main bodies 5 distributed around the center of the base 1 is kept consistent, that is, the trapezoidal portion 13 of the former transducer main body 5 corresponds to the rectangular portion 12 of the latter transducer main body 5. By adopting the mode, 4 or more oscillator main bodies 5 can be arranged, and the size and the thickness of the whole structure of the omnidirectional antenna are smaller.

Further, the spacer 6 is T-shaped, and the spacer 6 has the same height as the vibrator body 5. Thus, the spacer 6 can isolate signals, and effectively reduce interference between the oscillator main bodies 5. The isolation effect of the spacer 6 of "T style of calligraphy" in oscillator main part 5 is better, and spacer 6 in this scheme is directly formed by reflecting plate 4, intercepts a "T type" structure on reflecting plate 4, lifts this "T type" structure to the top, and the end of this "T type" structure still with reflecting plate 4 lug connection, fixed mode is comparatively stable, and saves raw materials and cost more.

Further, the vibrator comprises feed lines 11, wherein the vibrator main bodies 5 are electrically connected with one ends of the feed lines 11, and the number of the feed lines 11 corresponds to that of the vibrator main bodies 5; the center of the base 1 and the reflecting plate 4 is provided with a through hole 8, and the other end of the feeder line 11 far away from the vibrator main body 5 penetrates through the through hole 8. The feeder lines 11 are electrically connected with the oscillator main bodies 5 and mainly used for transmitting signals, the feeder lines 11 can be coaxial cables, when the number of the oscillator main bodies 5 is increased, the corresponding feeder lines 11 are synchronously increased, and the capacity expansion of the omnidirectional antenna is achieved.

Furthermore, the bottom of the spacer 6, which is far away from the through hole 8, is fixedly connected with a first support column 7, and the spacer 6 is fixedly connected with the base 1 through the arranged first support column 7; the bottom of the rectangular portion 12 is fixedly connected with the base 1 through a second support column 17, the middle of the trapezoidal portion 13 is bent downwards to form a connecting plate 10, and the trapezoidal portion 13 is fixedly connected with the reflecting plate 4 through the connecting plate 10.

So, first support column 7 is used for the support to spacer 6, and second support column 17 is then used for supporting rectangle portion 13 for spacer 6 and rectangle portion 13 remain throughout at invariable height, and this kind of stable structure has guaranteed the stability of each item electrical property index of antenna. The connecting plate 10, besides supporting the trapezoidal portion 13, has its bottom end insulated from the reflector plate 4 by an insulating pad (not shown in the figure), and plays a role in optimizing intermodulation indexes and standing wave indexes.

Further, a feeding board 9 is fixedly connected to the bottom of the rectangular portion 12, and an insulating pad (not shown in the figure) is further disposed between the feeding board 9 and the rectangular portion 12; the feed board 9 is of an inverted eight shape, and the lower end of the feed board 9 of the inverted eight shape is electrically connected with the feed line 11.

It is understood that feeding is performed with the feeding line 11 by the arrangement of the feeding board 9; and an insulating pad is arranged between the feed board 9 and the rectangular part 12, so that the intermodulation index and the standing wave index are optimized.

Furthermore, a plurality of fasteners 18 are arranged on the base 1, and the feeder line 11 is fixed on the reflection plate 4 through the fasteners 18. Therefore, the feeder line 11 is fixed with the reflecting plate 4 through the fastener 18 in the antenna, so that the feeder line is prevented from moving randomly in the installation process to influence the feeding effect, and the signal receiving effect of the omnidirectional antenna is ensured to be more stable.

Further, a cover 2 is detachably arranged above the base 1, and the reflection plate 4, the vibrator main body 5, the isolation sheet 6 and the feeder line 11 are covered by the cover 2. So, dustcoat 2 has completely cut off pollution such as outside dust, has guaranteed omnidirectional antenna's signal stability, and dustcoat 2 adopts the platykurtic structure, and the dustcoat 2 of platykurtic structure makes area littleer, and the consumptive material is few.

As shown in fig. 5-8, 10, and 15-19, in this embodiment, another set of proportion is set, and compared with the oscillator main body 5 with the fish-shaped structure in this embodiment, in this comparison example, a conventional rectangular oscillator is used for array, and after the gain and standing wave ratio of the antenna after the rectangular oscillator array are detected, the detection result of the antenna after the array of the oscillator main body 5 with the fish-shaped structure in this embodiment can be obtained by comparing the detection result of the antenna after the array of the oscillator main body 5 with the fish-shaped structure, and the gain effect and standing wave ratio of the antenna after the array of the oscillator main body 5 with the fish-shaped structure in this embodiment are both better.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An antenna element, characterized by: including oscillator main part (5), oscillator main part (5) are formed by rectangle portion (12) and trapezoidal portion (13) amalgamation, one side of rectangle portion (12) with one side fixed connection of trapezoidal portion (13), logical groove (15) that a plurality of parallel arrangement were seted up to the inside of rectangle portion (12), trapezoidal portion (13) are kept away from one side of rectangle portion (12) is seted up fluted (14).

2. An antenna element according to claim 1, wherein: the vibrator main body (5) forms a fish-shaped structure through a rectangular part (12) and a trapezoidal part (13) which are spliced.

3. An antenna element according to claim 1, wherein: 2 groups of through grooves (15) are formed in the rectangular portion (12), and the through grooves (15) and the grooves (14) are rectangular.

4. A broadband, multi-port, omni-directional antenna using the antenna element of any of claims 1-3, wherein: the vibrator comprises a base (1), a reflecting plate (4) is detachably arranged above the base (1), the vibrator main bodies (5) are arranged above the reflecting plate (4), and a plurality of vibrator main bodies (5) are distributed around the center circumference of the base (1);

the reflection plate (4) is further provided with a plurality of isolation sheets (6), and the isolation sheets (6) are located between the oscillator main bodies (5) which are adjacently arranged.

5. The broadband, multi-port, omni-directional antenna of claim 4, wherein: the isolation sheet (6) is T-shaped, and the isolation sheet (6) is as high as the vibrator main body (5).

6. The broadband, multi-port, omni-directional antenna of claim 4, wherein: the vibrator comprises a vibrator main body (5) and a plurality of feed lines (11), wherein the vibrator main body (5) is electrically connected with one ends of the feed lines (11), and the number of the feed lines (11) corresponds to that of the vibrator main bodies (5);

the center of the base (1) and the center of the reflection plate (4) are provided with a through hole (8), and the other end, far away from the vibrator main body (5), of the feeder line (11) penetrates through the through hole (8).

7. The broadband, multi-port, omni-directional antenna of claim 6, wherein: the bottom of the isolating sheet (6) far away from the through hole (8) is fixedly connected with a first supporting column (7), and the isolating sheet (6) is fixedly connected with the base (1) through the arranged first supporting column (7);

the bottom of the rectangular portion (12) is fixedly connected with the base (1) through a second supporting column (17) which is arranged, the middle of the trapezoidal portion (13) is bent downwards to form a connecting plate (10), and the trapezoidal portion (13) is fixedly connected with the reflecting plate (4) through the connecting plate (10) which is arranged.

8. The broadband, multi-port, omni-directional antenna of claim 6, wherein: the bottom of the rectangular part (12) is fixedly connected with a feed board (9), and an insulating pad is arranged between the feed board (9) and the rectangular part (12);

the feed board (9) is inverted eight-shaped, and the lower end of the inverted eight-shaped feed board (9) is electrically connected with the feed line (11).

9. The broadband, multi-port, omni-directional antenna of claim 6, wherein:

the power feed line is characterized in that a plurality of clamping pieces (18) are arranged on the base (1), and the power feed line (11) is fixed on the reflecting plate (4) through the clamping pieces (18).

10. The broadband, multi-port, omni-directional antenna of claim 6, wherein:

the upper portion of base (1) can be dismantled and be provided with dustcoat (2), dustcoat (2) will reflecting plate (4) oscillator main part (5) spacer (6) with feeder (11) all cover and establish including.