CN216698726U - Multi-channel direction-finding array antenna and system - Google Patents
Multi-channel direction-finding array antenna and system Download PDFInfo
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- CN216698726U CN216698726U CN202220145170.9U CN202220145170U CN216698726U CN 216698726 U CN216698726 U CN 216698726U CN 202220145170 U CN202220145170 U CN 202220145170U CN 216698726 U CN216698726 U CN 216698726U
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Abstract
The utility model provides a multi-channel direction-finding array antenna and a system, comprising: the antenna comprises a metal reflecting plate, a plurality of radiation units and an antenna housing; a plurality of hole sites with the same number as the radiation units are arranged on the metal reflecting plate, wherein the distance between the adjacent hole sites in the plurality of hole sites is the same; the radiation units are positioned above the metal reflecting plate, and each radiation unit penetrates through the corresponding hole position to be connected with the metal reflecting plate; the antenna housing is reversely buckled above the radiation unit, and the antenna housing is connected with the side edge of the metal reflecting plate. In the multi-channel direction-finding array antenna, a plurality of radiation units are integrated on one metal reflecting plate, so that multi-channel detection signals are realized, meanwhile, the plurality of radiation units are spaced at the same distance, high isolation among the plurality of radiation units and channel independence of a single radiation unit are ensured, and the detection precision of the signals is improved.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a multi-channel direction-finding array antenna and a system.
Background
Currently, in the field of security monitoring applications, security management personnel hope to identify a visitor who enters a security monitoring area by using a mobile communication network, and accurately locate the position information of the visitor. However, the conventional GPS (Global Positioning System) can only determine the sector service area of the base station where the visitor is located, and cannot achieve accurate Positioning. Therefore, in order to accurately locate the location information of the visitor, it is necessary to use an uncorrelated multi-antenna joint detection technique to perform algorithm processing on the mobile phone information of the visitor detected by multiple antennas, so as to obtain the accurate location information of the visitor. However, the above-mentioned non-correlated multi-antenna joint detection technique needs to install multiple antennas to implement high-precision multi-channel signal detection, and the existing single antenna cannot meet the requirements of the above-mentioned detection technique.
In summary, the conventional antenna cannot meet the requirement of the non-relevant multi-antenna joint detection technology, and high-precision and multi-channel detection of the mobile phone signal of the visitor is realized.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a multi-channel direction-finding array antenna and a system thereof, so as to alleviate the technical problem that the conventional antenna cannot meet the requirements of the non-correlated multi-antenna joint detection technology, and realize high-precision and multi-channel detection of the mobile phone signal of the visitor.
In a first aspect, the present invention provides a multi-channel direction-finding array antenna, including: the antenna comprises a metal reflecting plate, a plurality of radiation units and an antenna housing;
a plurality of hole sites with the same number as the radiation units are arranged on the metal reflecting plate, wherein the distance between the adjacent hole sites in the hole sites is the same;
the radiation units are positioned above the metal reflecting plate, and each radiation unit penetrates through the corresponding hole position to be connected with the metal reflecting plate;
the antenna housing is reversely buckled above the radiation unit, and the antenna housing is connected with the side edge of the metal reflecting plate.
Further, the radiation unit includes: an antenna element and an N-type connector;
the antenna oscillator is positioned above the metal reflecting plate and penetrates through the hole position of the metal reflecting plate to be connected with the N-type connector;
the N-type connector is positioned below the metal reflecting plate and connected with the metal reflecting plate.
Furthermore, the antenna element is a cone structure, and the working frequency covers the 1710-2690MHz/3300-3600MHz frequency band.
Further, the N-type connector includes: a welding pin and a flange;
the welding pin penetrates through the hole position of the metal reflecting plate and is connected with the antenna oscillator;
the flange plate is connected with the metal reflecting plate.
Further, the length of the welding needle is used for controlling the phase of the radiation unit.
Furthermore, the hole sites of the metal reflecting plate are arranged in a linear array or a circular array.
Further, the method also comprises the following steps: a rubber pad;
the rubber pad is embedded in the hole of the metal reflecting plate and used for isolating the antenna oscillator from the metal reflecting plate.
Further, the method also comprises the following steps: a support;
the support with the metal reflecting plate is connected, wherein, the support is for embracing pole structure or dull and stereotyped structure.
In a second aspect, the present invention provides a multi-channel direction-finding array antenna system, comprising: the multi-channel direction-finding array antenna according to any one of the first aspect, further comprising: radio frequency phase-stabilizing cables and direction-finding signal processors which are the same as the number of the radiation units;
one end of the radio frequency phase stabilizing cable is connected with the multi-channel direction-finding array antenna, and the other end of the radio frequency phase stabilizing cable is connected with the direction-finding signal processor.
Furthermore, one end of the radio frequency phase-stabilizing cable is connected with the N-type connector of the multi-channel direction-finding array antenna.
In an embodiment of the present invention, a multi-channel direction-finding array antenna includes: the antenna comprises a metal reflecting plate, a plurality of radiation units and an antenna housing; the metal reflecting plate is provided with a plurality of hole sites with the same number as the radiation units, wherein the distance between the adjacent hole sites in the plurality of hole sites is the same; the radiation units are positioned above the metal reflecting plate, and each radiation unit penetrates through the corresponding hole position to be connected with the metal reflecting plate; the antenna housing is reversely buckled above the radiation unit, and the antenna housing is connected with the side edge of the metal reflecting plate. As can be seen from the above description, in the multi-channel direction-finding array antenna of the present invention, a plurality of radiation units are integrated on one metal reflection plate, so that multi-channel detection of a mobile phone signal of a visitor is achieved. Meanwhile, the plurality of radiation units are spaced at fixed distances, so that high isolation among the radiation units is ensured, channel independence of a single radiation unit is realized, the detection precision of signals is improved, the requirements of an uncorrelated multi-antenna joint detection technology are met, the requirements that the existing antenna cannot meet the uncorrelated multi-antenna joint detection technology are effectively relieved, and the technical problem of detecting mobile phone signals of visitors in a high-precision and multi-channel mode is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a first structure of a multi-channel direction-finding array antenna according to an embodiment of the present invention;
FIG. 2 is a schematic view of a linear array according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second structure of a multi-channel direction-finding array antenna according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a circular array according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a radiation unit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a third structure of a multi-channel direction-finding array antenna according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a fourth structure of a multi-channel direction-finding array antenna according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a multi-channel direction-finding array antenna system according to an embodiment of the present invention.
Icon: 11-a metal reflector plate; 12-a radiating element; 13-a radome; 14-a rubber pad; 15-a scaffold; 121-an antenna element; 122-N type connector.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding the present embodiment, a detailed description will be first given of a multi-channel direction-finding array antenna disclosed in the present embodiment.
The first embodiment is as follows:
a multi-channel direction-finding array antenna, comprising: a metal reflection plate 11, a plurality of radiation units 12, and an antenna cover 13;
the metal reflecting plate 11 is provided with a plurality of hole sites with the same number as the radiation units 12, wherein the distance between the adjacent hole sites in the plurality of hole sites is the same;
the radiation units 12 are positioned above the metal reflecting plate 11, and each radiation unit 12 passes through the corresponding hole position to be connected with the metal reflecting plate 11;
the radome 13 is inverted over the radiation unit 12, and the radome 13 is connected to a side of the metal reflection plate 11.
In addition, the holes of the metal reflecting plate 11 are arranged in a linear array or a circular array.
In the embodiment of the present invention, a plurality of hole sites with the same number as that of the radiation units 12 are disposed on the metal reflection plate 11 of the multi-channel direction-finding array antenna, and the adjacent hole sites are spaced at equal intervals, and when the hole sites of the metal reflection plate 11 are arranged in a linear array, a first structural schematic diagram of the multi-channel direction-finding array antenna of the embodiment is shown in fig. 1 (in fig. 1, only one radiation unit is labeled, and other structures identical to the radiation unit are also referred to as radiation units). Specifically, a plurality of radiation units 12 are located above the metal reflection plate 11, and each radiation unit 12 passes through its corresponding hole and is connected to the metal reflection plate 11 by a screw. At this time, the schematic diagram of the linear array on the metal reflection plate 11 of the present embodiment is shown in fig. 2, wherein, in order to ensure the uniformity of the received signal phase of each radiation unit 12, RX0-RX7 adopt a plurality of identical radiation units 12. In this structure, the radome 13 of the multi-channel direction-finding array antenna is a rectangular shell, and in a spatial position, the radome 13 is reversely buckled above the plurality of radiation units 12 and is riveted with the side edge of the metal reflector plate 11 through a metal rivet.
In addition, the holes on the metal reflection plate 11 may also be arranged in a circular array, and at this time, a second structural schematic diagram of the multi-channel direction-finding array antenna of this embodiment is shown in fig. 3 (only one radiation unit is labeled in fig. 3, and other structures that are the same as those of the radiation unit are also radiation units). Specifically, in the structure, the metal reflection plate 11 is a planar circular metal plate, the plurality of radiation units 12 are arranged above the metal reflection plate 11 in a circular array after passing through the corresponding hole sites, and each radiation unit 12 is connected with the metal reflection plate 11 through a general screw. At this time, a schematic diagram of the circular ring array on the metal reflection plate 11 of the present embodiment is shown in fig. 4, where RX8-RX15 are a plurality of identical radiation units 12, and Tx is the central position of the circular metal reflection plate 11. In this structure, the radome 13 of the multi-channel direction-finding array antenna is a conical shell, and in a spatial position, the radome 13 is also inverted over the plurality of radiating elements 12 and is riveted with the side edge of the circular metal reflector plate 11 by a metal rivet.
In an embodiment of the present invention, a multi-channel direction-finding array antenna is provided, including: a metal reflection plate 11, a plurality of radiation units 12, and an antenna cover 13; the metal reflecting plate 11 is provided with a plurality of hole sites with the same number as the radiation units 12, wherein the distance between the adjacent hole sites in the plurality of hole sites is the same; the radiation units 12 are positioned above the metal reflecting plate 11, and each radiation unit 12 passes through the corresponding hole position to be connected with the metal reflecting plate 11; the radome 13 is inverted over the radiation unit 12, and the radome 13 is connected to a side of the metal reflection plate 11. As can be seen from the above description, in the multi-channel direction-finding array antenna of the present invention, a plurality of radiating elements 12 are integrated on one metal reflector 11, so as to implement multi-channel detection of mobile phone signals of a visitor. Meanwhile, the plurality of radiation units 12 are spaced at equal distances, so that high isolation among the plurality of radiation units 12 is ensured, channel independence of a single radiation unit 12 is realized, signal detection precision is improved, requirements of an uncorrelated multi-antenna joint detection technology are met, the problem that the conventional antenna cannot meet the requirements of the uncorrelated multi-antenna joint detection technology is effectively solved, and the technical problem of high-precision and multi-channel detection of mobile phone signals of a visitor is realized.
The foregoing has outlined the structure of the multi-channel direction-finding array antenna of the present invention and the details thereof are set forth in the detailed description that follows.
In an alternative embodiment of the utility model, the radiating element comprises: an antenna element 121 and an N-type connector 122;
the antenna element 121 is positioned above the metal reflecting plate 11 and connected with the N-type connector 122 through a hole of the metal reflecting plate 11;
the N-type connector 122 is located below the metal reflection plate 11 and connected to the metal reflection plate 11.
In addition, the antenna element 121 is a cone structure, and the operating frequency covers the 1710-2690MHz/3300-3600MHz frequency band.
Specifically, fig. 5 is a schematic structural diagram of a radiation unit according to an embodiment of the present invention, as shown in fig. 5, the radiation unit 12 of the multi-channel direction-finding array antenna adopts an ultra-wideband omnidirectional antenna, the antenna element 121 inside the antenna unit is an omnidirectional antenna element, an aluminum alloy cone structure or a PCB plane cone structure can be adopted structurally, and the working frequency during normal operation covers the 1710-. Meanwhile, no matter the multi-channel direction-finding array antenna adopts the first structure or the second structure, the antenna oscillator 121 is located above the metal reflecting plate 11, penetrates through a hole position on the metal reflecting plate 11 corresponding to the hole position, and is welded with the N-type connector 122. On the connection structure, the flexible connection in the traditional connection mode is improved, and the high-precision rigid connection mode that the antenna element 121 and the N-type connector 122 are welded is adopted, so that the influence of the traditional flexible connection on the phase consistency of each radiation unit is effectively avoided.
In an alternative embodiment of the present invention, the N-type connector 122 includes: a welding pin and a flange;
the welding pin penetrates through the hole position of the metal reflecting plate 11 to be connected with the antenna oscillator 121;
the flange is connected to a metal reflector plate 11.
In addition, the length of the welding pin is used to control the phase of the radiating element 12.
Specifically, the connection between the antenna element 121 and the N-type connector 122 is mainly achieved by soldering the antenna element 121 after a welding pin inside the N-type connector 122 passes through a hole of the metal reflection plate 11, wherein when the antenna element 121 inside the plurality of radiation units 12 is connected with the N-type connector 122, the length of the welding pin needs to be controlled to be consistent, so that the phase consistency of each radiation unit 12 is ensured.
In addition, the radiating unit 12 is connected to the metal reflecting plate 11 by screws after passing through the corresponding hole, and is mainly connected to the metal reflecting plate 11 by metal screws through an internal flange of the N-type connector 122.
In an optional embodiment of the present invention, further comprising: a rubber pad 14;
the rubber pad 14 is embedded in a hole of the metal reflection plate 11 for isolating the antenna element 121 from the metal reflection plate 11.
Specifically, referring to fig. 5, in order to ensure the isolation between the antenna element 121 of the conical structure inside the radiation unit 12 and the metal reflection plate 11, no matter the multichannel direction-finding array antenna adopts the first structure or the second structure, the rubber pad 14 made of the insulating plastic material is embedded in each hole of the metal reflection plate 11.
In an optional embodiment of the present invention, further comprising: a bracket 15;
the support 15 is connected with the metal reflecting plate 11, wherein the support 15 is of a pole holding structure or a flat plate structure.
Specifically, when the multi-channel direction-finding array antenna adopts the aforementioned first structure, referring to fig. 6 (in fig. 6, only one radiating element is labeled, and other structures identical to the radiating element are also the radiating elements), the side surface of the metal reflection plate 11 is connected with the bracket 15 through an M5 screw, so that the multi-channel direction-finding array antenna is convenient to mount in the use process, wherein the bracket 15 may adopt a pole-clasping structure or a flat plate structure, so that the multi-channel direction-finding array antenna is suitable for various application scenarios.
When the multi-channel direction-finding array antenna adopts the second structure, referring to fig. 7 (in fig. 7, only one radiating element is labeled, and other structures identical to the radiating element are also used as the radiating element), the lower part of the metal reflecting plate 11 is connected with the bracket 15 through a screw, and similarly, in order to make the multi-channel direction-finding array antenna suitable for different application scenarios in practical application, the bracket 15 may adopt a pole-holding structure or a flat plate structure.
Example two:
fig. 8 is a schematic structural diagram of a multi-channel direction-finding array antenna system according to an embodiment of the present invention, as shown in fig. 8, including: the multi-channel direction-finding array antenna in the first embodiment further includes: radio frequency phase-stabilizing cables and direction-finding signal processors which are the same as the number of the radiation units 12;
one end of the radio frequency phase stabilizing cable is connected with the multi-channel direction-finding array antenna, and the other end of the radio frequency phase stabilizing cable is connected with the direction-finding signal processor.
Specifically, in order to ensure that signals detected by the multi-channel direction-finding array antenna can be transmitted to the direction-finding signal processor with high precision, the multi-channel direction-finding array antenna system adopts the radio-frequency phase-stabilizing cable, and compared with the radio-frequency cable of the traditional antenna system, the radio-frequency phase-stabilizing cable has excellent electrical performance such as wide frequency band, stable phase, small loss and the like, and excellent physical properties such as stable structure, good flexibility and the like. The number of the radio frequency phase-stabilizing cables is the same as that of the radiation units 12, and the connection between the multi-channel direction-finding array antenna and the direction-finding signal processor is realized through the radio frequency phase-stabilizing cables.
In an alternative embodiment of the present invention, one end of the rf phase-stabilizing cable is connected to the N-connector 122 of the multi-channel direction-finding array antenna.
Specifically, the connection between the radio frequency phase-stabilizing cable and the multi-channel direction-finding array antenna is realized by connecting the radio frequency phase-stabilizing cable and the N-type connector 122 of the multi-channel direction-finding array antenna.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of the technical solutions described in the foregoing embodiments or make equivalent substitutions for some or all of the technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A multi-channel direction-finding array antenna, comprising: the antenna comprises a metal reflecting plate, a plurality of radiation units and an antenna housing;
the metal reflecting plate is provided with a plurality of hole sites with the same number as the radiation units, wherein the space between the adjacent hole sites in the hole sites is the same;
the radiation units are positioned above the metal reflecting plate, and each radiation unit penetrates through the corresponding hole position to be connected with the metal reflecting plate;
the antenna housing is reversely buckled above the radiation unit, and the antenna housing is connected with the side edge of the metal reflecting plate.
2. The multi-channel direction-finding array antenna of claim 1, wherein the radiating element comprises: an antenna element and an N-type connector;
the antenna oscillator is positioned above the metal reflecting plate and penetrates through the hole position of the metal reflecting plate to be connected with the N-type connector;
the N-type connector is positioned below the metal reflecting plate and connected with the metal reflecting plate.
3. The multi-channel direction-finding array antenna of claim 2, wherein the antenna element is a cone structure, and the working frequency covers 1710-.
4. The multi-channel direction-finding array antenna of claim 2, wherein the N-type connector comprises: a welding pin and a flange plate;
the welding pin penetrates through the hole position of the metal reflecting plate and is connected with the antenna oscillator;
the flange plate is connected with the metal reflecting plate.
5. The multi-channel direction-finding array antenna of claim 4, wherein the length of the bonding pin is used to control the phase of the radiating element.
6. The multi-channel direction-finding array antenna of claim 1, wherein the holes of the metal reflector are arranged in a linear array or a circular array.
7. The multi-channel direction-finding array antenna of claim 4, further comprising: a rubber pad;
the rubber pad is embedded in the hole of the metal reflecting plate and used for isolating the antenna oscillator from the metal reflecting plate.
8. The multi-channel direction-finding array antenna of claim 1, further comprising: a support;
the support with the metal reflecting plate is connected, wherein, the support is for embracing pole structure or dull and stereotyped structure.
9. A multi-channel direction-finding array antenna system, comprising: the multi-channel direction-finding array antenna of any of the above claims 1-8, further comprising: radio frequency phase-stabilizing cables and direction-finding signal processors which are the same as the number of the radiation units;
one end of the radio frequency phase stabilizing cable is connected with the multi-channel direction-finding array antenna, and the other end of the radio frequency phase stabilizing cable is connected with the direction-finding signal processor.
10. The multi-channel direction-finding array antenna system of claim 9, wherein one end of the radio frequency phase-stabilizing cable is connected to an N-type connector of the multi-channel direction-finding array antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220145170.9U CN216698726U (en) | 2022-01-19 | 2022-01-19 | Multi-channel direction-finding array antenna and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220145170.9U CN216698726U (en) | 2022-01-19 | 2022-01-19 | Multi-channel direction-finding array antenna and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216698726U true CN216698726U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220145170.9U Active CN216698726U (en) | 2022-01-19 | 2022-01-19 | Multi-channel direction-finding array antenna and system |
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| Country | Link |
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| CN (1) | CN216698726U (en) |
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- 2022-01-19 CN CN202220145170.9U patent/CN216698726U/en active Active
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