CN212277395U - High-power high-gain omnidirectional shaped antenna - Google Patents
High-power high-gain omnidirectional shaped antenna Download PDFInfo
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- CN212277395U CN212277395U CN202021110219.4U CN202021110219U CN212277395U CN 212277395 U CN212277395 U CN 212277395U CN 202021110219 U CN202021110219 U CN 202021110219U CN 212277395 U CN212277395 U CN 212277395U
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Abstract
The utility model relates to a high-power high-gain omnidirectional shaped antenna, which comprises an antenna cover, a power divider, an antenna printed board assembly, a high-power cable assembly and a lightning rod assembly; the antenna housing comprises a housing body, an antenna bottom plate and an antenna upper cover plate; the power divider is provided with a power divider output port, a printed board fixing plate and a power divider input port; the antenna printed board assembly comprises a forming printed board, a printed dipole unit, a forming feed network, an isolation resistor and a forming printed board connector; the shaped printed boards are uniformly distributed at 360 degrees and are arranged on one side of the printed board fixing plate; the shaped printed board connector is welded with the printed dipole unit and is connected with the output port of the power divider through the high-power cable assembly; the lightning rod assembly comprises a lightning rod fixing rod and a lightning rod; one end of the lightning rod is connected with the lightning rod fixing rod, and the other end of the lightning rod extends out of the cover body. The utility model discloses when realizing high-gain omnidirectional radiation, improved low elevation angle direction gain through beam forming.
Description
Technical Field
The utility model relates to a novel high-power high-gain omnidirectional forming antenna, it has advantages of lightning protection, high power, low angle of elevation high gain, omnidirectional radiation when realizing the vertical polarization characteristic.
Background
With the development of communication technology, there is an increasing demand for high-gain omni-directional antennas. An antenna is an important device for transmitting and receiving radio signals in a radio system, and the quality of the antenna performance directly affects the communication quality of the whole radio system. In a long-distance communication system, it is often necessary to achieve a high gain in a low elevation beam range to meet communication needs. In a ground base station airplane communication system such as an airport and the like, as a communication target can appear in any direction, the antenna is required to meet the requirements of high power and high gain, and a directional diagram can realize horizontal 360-degree coverage. For the ground station communication system, the antenna needs to be installed at a higher position to avoid the shielding of a barrier, and lightning protection processing needs to be performed.
In a traditional base station antenna system, array sub-arrays are mostly adopted to realize omnidirectional communication. The maximum radiation direction of the existing base station communication antenna is generally in the horizontal direction, and due to the limitation of the beam width, the antenna gain is rapidly reduced along with the increase of the pitching angle. The shaped antenna which is applied gradually in the follow-up process cannot meet the requirement of long-distance communication due to the small wave beam shaping range or the limit of power capacity.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the above-mentioned background art, the utility model provides a structural design is simple, reasonable, has high-power high-gain omnidirectional shaped antenna of lightning protection, high power, low angle of elevation high gain, omnidirectional radiation characteristic simultaneously.
The technical scheme of the utility model as follows:
the high-power high-gain omnidirectional shaped antenna comprises an antenna housing; the antenna housing comprises a housing body, an antenna bottom plate and an antenna upper cover plate, wherein the antenna bottom plate is installed at the bottom end of the housing body in a matched mode, and the antenna upper cover plate is installed at the top end of the housing body in a matched mode; the shaped antenna also comprises a power divider, an antenna printed board assembly, a high-power cable assembly and a lightning rod assembly; the power divider is arranged in the central area inside the antenna base plate in a matching mode, one end of the power divider is provided with a power divider output port, the middle of the top surface of the power divider is provided with a printed board fixing plate in a matching mode, and the center of the bottom of the power divider is provided with a power divider input port; the input port of the power divider penetrates through the antenna bottom plate and extends out of the cover body; the antenna printed board assembly is mounted on the inner side of the antenna housing in a matching mode and comprises a shaping printed board, a printed dipole unit, a shaping feed network, an isolation resistor and a shaping printed board connector; the shaping printed boards are uniformly distributed at 360 degrees and are arranged on one side of the printed board fixing plate; the printed dipole unit and the shaped printed board connector are matched and arranged on one surface of the shaped printed board; the shaped printed board connector is welded with the printed dipole unit and is also connected with the output port of the power divider in a matching way through the high-power cable assembly; the shaped feed network and the isolation resistor are matched and arranged on the other surface of the shaped printed board; the lightning rod assembly comprises a lightning rod fixing rod and a lightning rod; the lightning rod fixing rod is fixedly installed at the center of the top surface of the antenna bottom plate in a matched mode and is grounded; one end of the lightning rod penetrates through the antenna upper cover plate and extends into the inner cavity of the cover body to be connected with the lightning rod fixing rod in a matched mode, and the other end of the lightning rod extends out of the outer side of the cover body.
The high-power high-gain omnidirectional shaped antenna comprises: the number of the shaped printed boards is four, and the surface of each shaped printed board is 3 ounces of copper thick.
The high-power high-gain omnidirectional shaped antenna comprises: the printed dipole units are arranged on the omnidirectional antenna printed board at unequal intervals in the vertical direction.
The high-power high-gain omnidirectional shaped antenna comprises: the beam forming feed network adopts excitation and phase obtained by genetic algorithm optimization to carry out layout design, and beam forming in the vertical direction is realized.
The high-power high-gain omnidirectional shaped antenna comprises: the high-power cable assembly is fixed on the printed board fixing plate through a wire pressing hoop and comprises a cable, a first high-power connector and a second high-power connector; the lower end of the cable is connected with the first high-power connector and is connected with the output port of the power divider in a matching mode through the first high-power connector, and the upper end of the cable is connected with the shaping printed board connector in a matching mode.
Has the advantages that:
the utility model discloses high-power high-gain qxcomm technology figurative antenna structural design is simple, reasonable, compares with omnidirectional antenna in the past, has that power capacity is big, low angle of elevation gain is high, omnidirectional radiation and lightning protection function. The shaped printed board adopts a printed dipole unit as a radiation array element, and the requirements of gain and impedance bandwidth are ensured; the power divider adopts a cavity filter form, so that the loss is reduced, and the requirement of high power is ensured; the shaped printed boards are uniformly distributed around the center by 360 degrees, so that the omnidirectional beam coverage is realized; the lightning rod assembly can ensure that the antenna has the lightning protection function; the shaping printed board is designed to be 3 ounces of copper, and the isolation resistor is a high-power resistor, so that the power capacity of the shaping printed board is improved; each row of printed dipole units optimizes the feeding amplitude and phase of the shaped subarray through a genetic algorithm, beam shaping in the vertical direction is achieved, and low elevation angle direction gain of the antenna is improved.
Drawings
Fig. 1 is a schematic structural diagram of the high-power high-gain omnidirectional shaped antenna of the present invention;
fig. 2 is a schematic diagram of the direction a-a in fig. 1 of the high-power high-gain omnidirectional shaped antenna of the present invention;
fig. 3 is a schematic front structural view of the shaped printed board of the antenna printed board assembly of the high-power high-gain omnidirectional shaped antenna of the present invention;
fig. 4 is a schematic diagram of a reverse structure of a shaped printed board of an antenna printed board assembly of the high-power high-gain omnidirectional shaped antenna of the present invention;
fig. 5 is a schematic structural diagram of the power divider of the high-power high-gain omnidirectional shaped antenna of the present invention;
fig. 6 is an in-band voltage standing wave ratio actual mapping diagram of the high-power high-gain omnidirectional shaped antenna of the utility model;
fig. 7 is the utility model discloses high-power high-gain omnidirectional forming antenna's central frequency point directional diagram is surveyed actually.
Detailed Description
As shown in fig. 1 to 7, the utility model discloses high-power high-gain omnidirectional forming antenna, including antenna house 1, merit divide ware 2, antenna printing board subassembly 3, high power cable subassembly 4 and lightning rod subassembly 5.
The antenna housing 1 is a cylindrical structure and comprises a housing body 11, an antenna bottom plate 12 and an antenna upper cover plate 13; wherein, the cover body 11 has an accommodating space therein and two ends thereof are open; the antenna bottom plate 12 is mounted at the bottom opening of the cover 11 through a fastener in a matching manner, and the antenna upper cover plate 13 is mounted at the top opening of the cover 11 through a fastener in a matching manner.
The power divider 2 is arranged in the central area inside the antenna bottom plate 12 of the antenna housing 1 in a matching manner, one end of the power divider is provided with a power divider output port 21, the middle part of the top surface of the power divider is provided with a printed board fixing plate 22 in a matching manner, and the center of the bottom of the power divider is provided with a power divider input port 21; the power divider input port 21 extends outward of the antenna base plate 12. The power divider 2 adopts a cavity filter form, so that the loss is reduced, and the requirements of low insertion loss and high power of the power divider are met.
The antenna printed board assembly 3 is mounted inside the antenna housing 1 in a matching manner, and includes a shaped printed board 31, a printed dipole unit 32, a shaped feed network 33, an isolation resistor 34 and a shaped printed board connector 35.
The shaped printed boards 31 are arranged on one side of the printed board fixing plate 22 in the middle of the top surface of the power divider 2 in a 360-degree uniform distribution manner, so that omnidirectional beam coverage is realized; each shaping printed board 31 is processed by a polytetrafluoroethylene high-frequency radio frequency board, and the surface of the shaping printed board is designed to be 3 ounces of copper.
The printed dipole unit 32 is matched with the front surface of the shaping printed board 31; the shaped printed board 31 adopts a mode of unequal-interval arrangement of the printed dipole units 32 as a radiation array element, thereby ensuring the requirements of gain and impedance bandwidth; the printed dipole elements 32 are in the form of a vertical array, and realize broadband vertical polarization characteristics.
The shaped feed network 33 and the isolation resistor 34 are matched and arranged on the reverse side of the shaped printed board 31; the shaped feed network 33 adopts excitation and phase obtained by genetic algorithm optimization to carry out layout design, ensures that a shaped subarray realizes vertical direction directional diagram beam shaping, and improves the gain of the antenna in the low elevation angle direction; the isolation resistor 34 is a high-power resistor to improve the power capacity of the shaping printed board 31.
The shaped printed board connector 35 is disposed on the front surface of the shaped printed board 31 and is welded to the printed dipole unit 32.
The high-power cable assembly 4 is fixed on the printed board fixing plate 22 of the power divider 2 and comprises a cable 41, a first high-power connector 42 and a second high-power connector 43; the lower end of the cable 41 is connected to the first high-power connector 42 and is connected to the power divider output port 21 through the first high-power connector 42 in a matching manner, and the upper end of the cable 41 is connected to the shaped printed board connector 35 through the second high-power connector 43 in a matching manner. The high-power cable assembly 4 is fixed on the printed board fixing plate 22 through the wire clamp 44, and the high-power capacity working requirement of the antenna is ensured.
The lightning rod assembly 5 comprises a lightning rod fixing rod 51 and a lightning rod 52; the lightning rod fixing rod 51 is fixedly mounted at the center of the top surface of the antenna bottom plate 12 of the antenna housing 1 through a fastener in a matching manner to be grounded, so that the antenna is ensured to have a lightning protection function; one end of the lightning rod 52 penetrates through the antenna upper cover plate 13 and extends into the inner cavity of the cover body 11 to be connected with the lightning rod fixing rod 51 in a threaded fit mode.
The performance of the antenna of the utility model is actually tested, the voltage standing wave ratio of the antenna is less than 1.3, the omnidirectional gain of the horizontal plane is more than 5dB, and the out-of-roundness is less than 1dB within the range of 1410MHz-1460MHz of the whole working frequency band; in the low elevation angle 0-40 degree wave beam range, along with the increase of the elevation angle, the gain of the antenna is slowly reduced; the test result meets the index requirement of the omnidirectional ground station antenna, and the table 1 lists the main indexes and the statistical result of typical frequency points.
TABLE 1 statistics of the main indices
The utility model discloses structural design is simple, reasonable, can realize lightning protection, high power, low angle of elevation high gain, omnidirectional radiation characteristic simultaneously.
Claims (5)
1. A high-power high-gain omnidirectional shaped antenna comprises an antenna housing; the antenna housing comprises a housing body, an antenna bottom plate and an antenna upper cover plate, wherein the antenna bottom plate is installed at the bottom end of the housing body in a matched mode, and the antenna upper cover plate is installed at the top end of the housing body in a matched mode; the method is characterized in that: the shaped antenna also comprises a power divider, an antenna printed board assembly, a high-power cable assembly and a lightning rod assembly;
the power divider is arranged in the central area inside the antenna base plate in a matching mode, one end of the power divider is provided with a power divider output port, the middle of the top surface of the power divider is provided with a printed board fixing plate in a matching mode, and the center of the bottom of the power divider is provided with a power divider input port; the input port of the power divider penetrates through the antenna bottom plate and extends out of the cover body;
the antenna printed board assembly is mounted on the inner side of the antenna housing in a matching mode and comprises a shaping printed board, a printed dipole unit, a shaping feed network, an isolation resistor and a shaping printed board connector; the shaping printed boards are uniformly distributed at 360 degrees and are arranged on one side of the printed board fixing plate; the printed dipole unit and the shaped printed board connector are matched and arranged on one surface of the shaped printed board; the shaped printed board connector is welded with the printed dipole unit and is also connected with the output port of the power divider in a matching way through the high-power cable assembly; the shaped feed network and the isolation resistor are matched and arranged on the other surface of the shaped printed board;
the lightning rod assembly comprises a lightning rod fixing rod and a lightning rod; the lightning rod fixing rod is fixedly installed at the center of the top surface of the antenna bottom plate in a matched mode and is grounded; one end of the lightning rod penetrates through the antenna upper cover plate and extends into the inner cavity of the cover body to be connected with the lightning rod fixing rod in a matched mode, and the other end of the lightning rod extends out of the outer side of the cover body.
2. The high power high gain omnidirectional shaped antenna according to claim 1, wherein: the number of the shaped printed boards is four, and the surface of each shaped printed board is 3 ounces of copper thick.
3. The high power high gain omnidirectional shaped antenna according to claim 1, wherein: the printed dipole units are arranged on the omnidirectional antenna printed board at unequal intervals in the vertical direction.
4. The high power high gain omnidirectional shaped antenna according to claim 1, wherein: the beam forming feed network adopts excitation and phase obtained by genetic algorithm optimization to carry out layout design, and beam forming in the vertical direction is realized.
5. The high power high gain omnidirectional shaped antenna according to claim 1, wherein: the high-power cable assembly is fixed on the printed board fixing plate through a wire pressing hoop and comprises a cable, a first high-power connector and a second high-power connector; the lower end of the cable is connected with the first high-power connector and is connected with the output port of the power divider in a matching mode through the first high-power connector, and the upper end of the cable is connected with the shaping printed board connector in a matching mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110219.4U CN212277395U (en) | 2020-06-16 | 2020-06-16 | High-power high-gain omnidirectional shaped antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110219.4U CN212277395U (en) | 2020-06-16 | 2020-06-16 | High-power high-gain omnidirectional shaped antenna |
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| CN212277395U true CN212277395U (en) | 2021-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668599A (en) * | 2020-06-16 | 2020-09-15 | 陕西烽火诺信科技有限公司 | High-power high-gain omnidirectional shaped antenna |
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- 2020-06-16 CN CN202021110219.4U patent/CN212277395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668599A (en) * | 2020-06-16 | 2020-09-15 | 陕西烽火诺信科技有限公司 | High-power high-gain omnidirectional shaped antenna |
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