CN205723937U - A dual-frequency dual-polarization indoor omni-directional antenna structure - Google Patents

Abstract

The utility model discloses an indoor omnidirectional antenna structure of dual-frenquency double polarization, including insulator foot, set up in the reflecting plate of insulator foot top, the middle part of reflecting plate sets up an spacing block, and the both sides of spacing block set up oscillator one and oscillator two that are bilateral symmetry arrangement respectively, and on oscillator one and oscillator two were fixed in the reflecting plate respectively, insulator foot's bottom still set up high frequency feeder and low frequency and high frequency feeder, and high frequency feeder connects oscillator one, and low frequency and high frequency feeder connect oscillator two. The utility model discloses a set up oscillator, spacer, reflecting plate isotructure, not only can reduce the quantity of antenna, reduce the interference between the antenna and the cost of antenna, can share original basic station moreover, so just proposed dual-frenquency dual polarized antenna, dual-frenquency dual polarized antenna can not only adapt to communication system's continuous upgrading, can effectively solve the multipath problem of fading moreover, reduces antenna quantity, reduces the antenna cost, and simple structure, the dependable performance.

Description

A dual-frequency dual-polarization indoor omni-directional antenna structure

technical field

The utility model relates to an antenna structure, in particular to a dual-frequency dual-polarization indoor omnidirectional antenna structure.

Background technique

In mobile communications, indoor traffic is the most intensive. At this stage, indoor ceiling antennas have gradually been unable to meet the needs of people's conversation traffic. Indoors, due to the narrow space constraints and aesthetics, the size requirements for indoor antennas As small as possible, and can meet the largest possible coverage and high gain. The application of dual-frequency and dual-polarized antennas can meet the requirements of continuous upgrading of communication systems, effectively solve the problem of multipath fading, reduce the number of antennas, and reduce the cost of antennas. With the development of mobile communication technology, the research on dual-frequency dual-polarization base station array antenna has become very urgent, and it also has theoretical significance and practical value. Therefore, a miniaturized and high-gain dual-frequency dual-polarization antenna is developed It has very important practical significance and application prospects.

The continuous upgrade of the mobile communication system requires the configuration of new frequency bands. Most of the existing indoor antennas are single-band and single-polarized antennas. In order to adapt to the antennas of the new frequency bands, the number of antennas must be increased and the cost will be increased.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, provide a dual-frequency dual-polarization indoor omni-directional antenna structure, effectively solve the problem of multi-path fading, reduce the number of antennas, and reduce the cost of the antenna.

In order to achieve the above object, the technical scheme that the utility model adopts is:

A dual-frequency dual-polarization indoor omni-directional antenna structure, including an insulating base, a reflector arranged above the insulating base, a spacer is arranged in the middle of the reflector, and vibrator 1 and Vibrator 2, vibrator 1 and vibrator 2 are respectively fixed on the reflector. The bottom of the insulating base is also provided with high-frequency feeder and low-frequency and high-frequency feeder. The high-frequency feeder is connected to vibrator 1, and the low-frequency and high-frequency feeder is connected to vibrator 2.

As a preferred embodiment of the utility model, a Z-shaped bracket is provided on the bottom of the reflecting plate in the utility model, and the Z-shaped bracket is arranged at the center line of the reflecting plate between the vibrator 1 and the vibrator 2.

As a preferred embodiment of the utility model, the reflecting plate and the Z-shaped bracket of the utility model are composed of an integrally formed aluminum plate.

As a preferred embodiment of the utility model, the spacer described in the utility model is set as an L-shaped structure, and the spacer is provided with a fixing hole, and the spacer is fixed on the center line of the reflector between the first vibrator and the second vibrator through the fixing hole. The spacer and the height of the spacer are consistent with the vibrator 1 and vibrator 2.

As a preferred embodiment of the utility model, the spacer of the utility model is composed of an integrally formed aluminum plate.

As a preferred embodiment of the utility model, the vibrator 1 and the vibrator 2 described in the utility model are both three-sided bending structures, and are fixed on the reflector by screws.

As a preferred embodiment of the present utility model, an insulating support column is respectively set between the vibrator 1 and the reflector and between the vibrator 2 and the reflector in the utility model, and the vibrator 1 and vibrator 2 are respectively insulated and supported by the reflector. connect.

As a preferred embodiment of the utility model, the vibrator 1 and the vibrator 2 of the utility model are both composed of integrally formed rectangular copper plates.

As a preferred embodiment of the utility model, the antenna structure of the utility model further includes a waterproof cover, which is arranged on the outside of the first vibrator, the second vibrator, the spacer and the reflection plate, and is fixedly connected with the insulating base.

Compared with the prior art, the beneficial effect of the utility model is: by setting structures such as oscillators, spacers, and reflectors, not only the number of antennas can be reduced, the interference between antennas and the cost of the antennas can be reduced, but also the original antennas can be shared. Therefore, a dual-frequency dual-polarized antenna is proposed. The dual-frequency dual-polarized antenna can not only adapt to the continuous upgrading of the communication system, but also effectively solve the problem of multipath fading, reduce the number of antennas, and reduce the cost of the antenna. The structure is simple and the performance reliable.

Description of drawings

Fig. 1 is the overall structure schematic diagram one of the present utility model;

Fig. 2 is the overall structure schematic diagram two of the utility model;

Fig. 3 is the third overall structural diagram of the utility model.

detailed description

The gist of the utility model is to overcome the deficiencies of the prior art and provide a dual-frequency dual-polarization indoor omnidirectional antenna structure, which mainly improves the performance and index of the antenna. It realizes linear polarization H/V, and in terms of working frequency band, within the range of 698-960MHz and 1710-2700MHz, the performance is reliable, and the isolation between two ports is less than 18; the third-order intermodulation is less than -107dBm. The following will be described in detail with reference to the accompanying drawings in conjunction with the embodiments, so as to further explain the technical features and advantages of the present utility model.

The overall structural diagram of the utility model is shown in Figure 1-3, a dual-frequency dual-polarization indoor omnidirectional antenna structure, including an insulating base 5, a reflector 3 arranged above the insulating base 5, and the middle of the reflector 3 is set A spacer 8, vibrator one 4 and vibrator two 7 arranged in left-right symmetry on both sides of the spacer 8, vibrator one 4 and vibrator two 7 are respectively fixed on the reflector 3, and the bottom of the insulating base 5 is also provided with a high-frequency The feeder 1 and the low-frequency and high-frequency feeder 2, the high-frequency feeder 1 is connected to the oscillator one 4, and the low-frequency and high-frequency feeder 2 is connected to the oscillator two 7.

In order to realize dual-frequency and horizontally and vertically polarized antennas, reduce the number of antennas, reduce the interference between antennas and the cost of the antennas, the first vibrator 4 and the second vibrator 7 of the utility model are all three-sided bending and forming structures, and through screws fixed on the reflector 3. In order to securely fix the first vibrator 4 and the second vibrator 7 on the reflector 3 in the utility model, an insulating support is provided between the first vibrator 4 and the reflector 3 and between the second vibrator 7 and the reflector 3 in the utility model. The column 6 , the vibrator 1 4 and the vibrator 2 7 are respectively insulated and fixedly connected to the support column 6 and the reflector 3 . Certainly, the utility model is not limited to only one insulating support column 6 , and a plurality of insulating support columns 6 can be provided as required. In addition, in order to ensure the performance, the first vibrator 4 and the second vibrator 7 of the utility model are both composed of integrally formed rectangular copper plates. As shown in Figure 1, the vibrator is made of a copper plate into a rectangular structure, and the left and right vibrators are symmetrically arranged and placed at both ends of the launch board.

As shown in FIG. 2 , a Z-shaped bracket 9 is provided on the bottom of the reflecting plate 3 in the present invention, and the Z-shaped bracket 9 is arranged on the central line of the reflecting plate 3 between the first vibrator 4 and the second vibrator 7 . The reflection plate 3 and the Z-shaped support 9 of the utility model are made of an integrally formed aluminum plate. The reflector 3 is manufactured from a complete aluminum plate, and a Z-shaped bracket 9 protrudes from the bottom to fix the two vibrators at the center of the bottom plate, and fix the spacer 8 between the two vibrators.

As shown in Figures 1 and 2, the spacer 8 described in the utility model is set to an L-shaped structure, and the spacer 8 is provided with a fixing hole, and the spacer 8 is fixed to the reflector 3 between the first vibrator 4 and the second vibrator 7 through the fixing hole On the center line, the spacer 8 is consistent with the distance and height of the vibrator 1 4 and the vibrator 2 7 . The spacer 8 is made of an integrally formed aluminum plate. The spacer 8 refers to an L-shaped aluminum plate, which effectively isolates the vibrator antennas of the two frequency bands.

The utility model fixes the launch board on the plastic base plate by screws, the vibrators on the left and right sides are evenly distributed at both ends of the reflector plate, and the spacer is fixed on the center line of the launch plate, which is consistent with the distance and height of the left and right vibrators. The vibrator is a rectangle, bent and formed on three sides, and effectively fixed on the reflector by screws. The feeder, two feeder lines are respectively connected to the vibrator at the left and right ends. The utility model mainly focuses on the performance and index of the antenna. In terms of structure, the vibrator and the reflection plate are effectively combined and distributed, so that it can realize linear polarization H/V. In terms of the working frequency band, it is within the range of 698-960MHz, 1710-2700MHz , reliable performance, the isolation of two ports is less than 18; the third-order intermodulation is less than -107dBm.

As shown in Figure 3, the antenna structure of the present utility model also includes a waterproof outer cover 10, and the waterproof outer cover 10 is arranged on the outer side of the first vibrator 4, the second vibrator 7, the spacer 8 and the reflection plate 3, and is fixedly connected with the insulating base 5, and is waterproof. The outer cover 10 has better waterproof effect.

The utility model is clearly and completely described through the technical solutions in the above embodiments, and it is obvious that the described embodiments are a part of the embodiments of the utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Claims (9)

1. A dual-frequency dual-polarization indoor omni-directional antenna structure, is characterized in that: comprise insulating base (5), be arranged on the reflecting plate (3) of insulating base (5) top, the middle part of reflecting plate (3) is provided with a Spacer (8), vibrator one (4) and vibrator two (7) arranged in left-right symmetry on both sides of the spacer (8), vibrator one (4) and vibrator two (7) are respectively fixed on the reflector ( 3), the bottom of the insulating base (5) is also provided with a high-frequency feeder (1) and a low-frequency and high-frequency feeder (2), the high-frequency feeder (1) is connected to the oscillator one (4), the low-frequency and high-frequency feeder (2) Connect vibrator two (7). 2. The dual-frequency dual-polarization indoor omnidirectional antenna structure according to claim 1 is characterized in that: a Z-shaped support (9) is provided on the bottom of the reflector (3), and the Z-shaped support (9) It is arranged at the central line position of the reflection plate (3) between the vibrator one (4) and the vibrator two (7). 3. The dual-frequency dual-polarization indoor omni-directional antenna structure according to claim 2, characterized in that: the reflector (3) and the Z-shaped bracket (9) are made of an integrally formed aluminum plate. 4. dual frequency dual polarization indoor omnidirectional antenna structure according to claim 1, is characterized in that: described spacer (8) is set to L-shaped structure, spacer (8) is provided with fixing hole, spacer (8) ) is fixed on the center line of the reflector (3) between the vibrator 1 (4) and the vibrator 2 (7) through the fixing hole, the distance and height between the spacer (8) and the vibrator 1 (4) and the vibrator 2 (7) unanimous. 5. The dual-frequency dual-polarization indoor omni-directional antenna structure according to claim 4, characterized in that: the spacer (8) is composed of an integrally formed aluminum plate. 6. The dual-frequency dual-polarization indoor omni-directional antenna structure according to claim 1, characterized in that: said vibrator 1 (4) and vibrator 2 (7) are both three-sided bending and forming structures, and are fixed to the reflector by screws. on the board (3). 7. The dual-frequency dual-polarization indoor omni-directional antenna structure according to claim 6, characterized in that: between the vibrator one (4) and the reflector (3) and between the vibrator two (7) and the reflector (3) ) are respectively provided with an insulating support column (6), and the first vibrator (4) and the second vibrator (7) are fixedly connected to the insulating support column (6) and the reflection plate (3). 8. The dual-frequency dual-polarization indoor omni-directional antenna structure according to claim 7, characterized in that: the vibrator one (4) and the vibrator two (7) are both composed of integrally formed rectangular copper plates. 9. The dual-frequency dual-polarization indoor omnidirectional antenna structure according to any one of claims 1-8, characterized in that: the antenna structure also includes a waterproof outer cover (10), and the waterproof outer cover (10) is arranged on Vibrator 1 (4), vibrator 2 (7), spacer (8) and the outside of the reflection plate (3) are fixedly connected to the insulating base (5).