CN107732465B - Dual-band dual-polarization fast drop rectangular shaped array antenna - Google Patents
Dual-band dual-polarization fast drop rectangular shaped array antenna Download PDFInfo
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- CN107732465B CN107732465B CN201710832632.8A CN201710832632A CN107732465B CN 107732465 B CN107732465 B CN 107732465B CN 201710832632 A CN201710832632 A CN 201710832632A CN 107732465 B CN107732465 B CN 107732465B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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Abstract
The invention discloses a dual-band dual-polarization fast drop rectangular shaped array antenna, which comprises: an antenna radiation array plane and a feed network; the antenna radiation array surface comprises N multiplied by N radiation units; each radiation unit comprises a + 45-degree polarization port and a-45-degree polarization port which are respectively connected with a pair of microwave networks; the feed network comprises a horizontal power distribution network and a vertical power distribution network, wherein an input port of the horizontal power distribution network is connected with an output port of the vertical power distribution network, an output port of the horizontal power distribution network is connected with a radiation unit in the radiation subarray through a microwave network, and an input port of the vertical power distribution network is connected with the combiner; the invention can realize that the antenna works in the working ranges of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz frequency bands, the 3dB wave beam width is 22-28 degrees, the 3 dB-20 dB level roll-off of the horizontal tangent plane and the vertical tangent plane is in the range of 10 degrees, the total number of the radiating units is reduced by 50 percent, the weight and the production cost of the antenna are reduced, and the difficulty of antenna erection is further reduced.
Description
Technical Field
The invention relates to the technical field of microwave antennas, in particular to a fast falling rectangular shaped array antenna.
Background
The level roll-off of 3 dB-20 dB of the horizontal tangent plane and the vertical tangent plane of the radiation pattern of the conventional shaped stadium antenna is usually 20-25 °, which is the case for example in "a wideband array antenna" with application number 201510705631.8 and "a rectangular shaped antenna array" with application number 201510936949.7. In the scheme disclosed in 'a dual-polarized two-beam low-sidelobe fast drop array antenna' with application number 201610982345.0, the antenna realizes that the power drop angle of 3dB to 20dB in the vertical direction is less than 14 degrees for the first time, but the power drop angle of 3dB to 20dB in the horizontal direction is 20 degrees, and the level roll-off of 3dB to 20dB in the horizontal plane and the vertical plane of an antenna pattern is still not fast enough in the design of the three patents.
Meanwhile, because the existing shaped stadium antenna is limited by the bandwidth limitation of the antenna, the design idea of the existing shaped array antenna is that a pair of antenna radiation array surfaces and corresponding feed networks are utilized to realize the performance in the segment area in the working frequency band of 1710 MHz-2170 MHz, another radiation array surface and corresponding feed networks are utilized to realize the performance in the segment area in the working frequency band of 2300 MHz-2690 MHz, and then the signals of the two frequency bands are combined by a combiner. The above three patents are all the design ideas.
The problems of the existing shaped array antenna are mainly as follows: the 3 dB-20 dB level roll-off of the horizontal tangent plane and the vertical tangent plane is not fast enough, so that the sector definition is not good enough when the sectors are arranged in an actual venue. Meanwhile, two radiation array surfaces exist in the working ranges of frequency bands of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz, so that the number of radiation units of the array is large, and the production cost is increased; meanwhile, the antenna is large in size and heavy in weight, so that certain difficulty exists in erecting the antenna in the process of arranging the antenna in an actual venue. Therefore, in order to solve the problems that the level roll-off of the array antenna from 3dB to 20dB in the horizontal section and the vertical section is not fast enough, the number of radiation units is too large due to two radiation fronts, the production cost is high, the size of the array is large, the weight is heavy, and the like, a series of problems that the level roll-off is faster than that of the existing antenna from 3dB to 20dB, and the production cost, the size of the array, the weight of the antenna and the like are reduced due to the fact that the array antenna has fewer radiation fronts and fewer radiation units than the existing array antenna are provided.
Disclosure of Invention
The purpose of the invention is: the prior art has the defects that a dual-band dual-polarization rapid drop rectangular shaped array antenna which ensures that an antenna directional diagram has rectangular shaped characteristics in the working ranges of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz, the 3 dB-20 dB level roll-off of a horizontal tangent plane and a vertical tangent plane is in the range of 10 degrees, and the full-space side lobe level is not more than 20dB is provided.
The technical scheme of the invention is as follows: a dual-band dual-polarized fast drop rectangular shaped array antenna comprises: an antenna radiation array plane and a feed network;
the antenna radiation array surface comprises N multiplied by N radiation units, the N radiation units in the horizontal direction form a group of radiation sub-arrays, and N is an integer not less than 2; the distances between the adjacent radiation units in the horizontal direction are the same and are marked as dx(ii) a The radiation subarrays have the same pitch in the vertical direction, which is marked as dy；dx、dyAll in the range of 0.4 times of central frequency wavelength to 1.6 times of central frequency wavelength; the working frequency of the radiation unit is within the frequency range of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz;
the feed network includes: 2N low-frequency horizontal power distribution networks, 2N high-frequency horizontal power distribution networks, two low-frequency vertical power distribution networks and two high-frequency vertical power distribution networks; each radiation subarray corresponds to two low-frequency horizontal power distribution networks and two high-frequency horizontal power distribution networks;
each radiation unit comprises two polarization ports, namely a + 45-degree polarization port and a-45-degree polarization port, and the two polarization ports are respectively connected with a pair of microwave networks;
on a + 45-degree polarization port of a radiation unit of the same radiation subarray, a first input port of a microwave network is connected with an output port of a low-frequency horizontal power distribution network A, and a second input port of the microwave network is connected with an output port of a high-frequency horizontal power distribution network A; the input port of the low-frequency horizontal power distribution network A is connected with the output port of the low-frequency vertical power distribution network A, and the input port of the high-frequency horizontal power distribution network A is connected with the output port of the high-frequency vertical power distribution network A; the input port of the low-frequency vertical power distribution network A and the input port of the high-frequency vertical power distribution network A are connected with a combiner A;
on-45-degree polarization ports of radiation units of the same radiation subarray, a first input port of a microwave network is connected with an output port of a low-frequency horizontal power distribution network B, and a second input port of the microwave network is connected with an output port of a high-frequency horizontal power distribution network B; the input port of the low-frequency horizontal power distribution network B is connected with the output port of the low-frequency vertical power distribution network B, and the input port of the high-frequency horizontal power distribution network B is connected with the output port of the high-frequency vertical power distribution network B; and the output port of the low-frequency vertical power distribution network B and the output port of the high-frequency vertical power distribution network B are connected with the path combiner B.
Specifically, in the polarization directions of +45 degrees and-45 degrees, on the working frequency band of 1710MHz to 2170MHz, the quantity of the horizontal power distribution networks is the same as that of the radiation subarrays, and the quantity of the vertical power distribution networks is one;
in the polarization directions of +45 degrees and-45 degrees, on the working frequency band of 2300 MHz-2690 MHz, the quantity of the horizontal power distribution network is the same as that of the radiation subarrays, and the quantity of the vertical power distribution network is one.
The antenna can generate a fixed beam in the whole three-dimensional space range within the working ranges of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz, the beam is a rectangular shaped beam, namely, a directional diagram is in square distribution in a contour diagram, the level roll-off of 3 dB-20 dB of a horizontal tangent plane and a vertical tangent plane is within 10 degrees, and the level of a side lobe in the whole three-dimensional space is not more than 20 dB.
Has the advantages that:
the invention can realize that the antenna works in the working ranges of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz frequency bands by only using one radiation array surface, the 3dB wave beam width is 22-28 degrees, the 3 dB-20 dB level roll-off of the horizontal tangent plane and the vertical tangent plane is in the range of 10 degrees, the total number of radiation units is reduced by 50 percent, the weight and the production cost of the antenna are reduced, and the difficulty of antenna erection is further reduced.
Drawings
FIG. 1 is a schematic structural composition of the present invention;
FIG. 2 is a schematic diagram of a radiation front structure of an antenna according to an embodiment of the present invention;
FIG. 3 is the radiation pattern of the horizontal section and the vertical section of the working frequency point of 1.71GHz in accordance with the present invention;
FIG. 4 is the radiation pattern of the horizontal section and the vertical section of the working frequency point of 2.17GHz in accordance with the present invention;
FIG. 5 is the radiation pattern of the horizontal section and the vertical section of the working frequency point of 2.3GHz in accordance with the present invention;
FIG. 6 is the radiation pattern of the horizontal section and the vertical section of the working frequency point of 2.69GHz in accordance with the present invention;
FIG. 7 is a contour radiation pattern of the present invention at a 1.71GHz operating frequency;
FIG. 8 is a contour radiation pattern of the present invention at a 2.17GHz operating frequency;
FIG. 9 is a contour radiation pattern of the present invention at a 2.3GHz operating frequency;
FIG. 10 is the contour radiation pattern of the present invention at the 2.69GHz operating frequency.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The example provides a rectangular shaped antenna working in the frequency band range of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz, wherein the 3dB beam width of the center frequency is 25 degrees.
Fig. 1 shows a schematic diagram of a dual-band dual-polarized fast dropping rectangular shaped array antenna, which includes: an antenna radiation array surface 1 and a four-secondary feed network;
the four-secondary feed network comprises: low-frequency horizontal power distribution networks 2 and 3, high-frequency horizontal power distribution networks 4 and 5, low-frequency vertical power distribution networks 6 and 7, and high-frequency vertical power distribution networks 8 and 9;
the radiation units in the radiation array surface 1 are dual-polarized crossed dipole antennas or dual-polarized metal patch antennas, and the designed working frequency of the antennas is within the frequency band ranges of 1710MHz to 2170MHz and 2300MHz to 2690 MHz.
The low-frequency horizontal power distribution network 2 and the low-frequency horizontal power distribution network 3 are configured in the same way and respectively correspond to + 45-degree polarization and-45-degree polarization of the array antenna working at 1.71 GHz-2.17 GHz; the high-frequency horizontal power distribution network 4 and the high-frequency horizontal power distribution network 5 are configured in the same way and respectively correspond to + 45-degree polarization and-45-degree polarization of the array antenna working at 2.3 GHz-2.69 GHz; the low-frequency vertical power distribution network 6 and the low-frequency vertical power distribution network 7 are configured in the same way and respectively correspond to + 45-degree polarization and-45-degree polarization of the array antenna working at 1.71 GHz-2.17 GHz; the high-frequency vertical power distribution network 8 and the high-frequency vertical power distribution network 9 are configured identically and respectively correspond to + 45-degree polarization and-45-degree polarization of the array antenna working at 2.3 GHz-2.69 GHz.
Fig. 2 is a schematic diagram of an antenna radiation front 1, and preferably, the antenna radiation front 1 includes eight radiation sub-arrays, each radiation sub-array includes eight radiation elements, and the total array includes 64 radiation elements; the antenna radiation front 1 is composed of a radiation sub-array 11, a radiation sub-array 12, a radiation sub-array 13, a radiation sub-array 14, a radiation sub-array 15, a radiation sub-array 16, a radiation sub-array 17 and a radiation sub-array 18. The distance between adjacent units in the radiation subarray is dxPreferably dxIs 0.5 times the wavelength of the central operating frequency; adjacent radiating subarrays at a spacing dyPreferably, dy0.5 times the wavelength of the central operating frequency.
The + 45-degree polarization port of the radiation unit in each radiation subarray is respectively connected with an input port of the small microwave network, the-45-degree polarization port of the radiation unit in each radiation subarray is respectively connected with an input port of the small microwave network, and the whole array totally counts 128 small microwave networks.
On the + 45-degree polarization port, eight output ports of each low-frequency horizontal power distribution network 2 are connected with a first input port of each microwave network of eight radiation units in the radiation subarray, and eight output ports of each high-frequency horizontal power distribution network 4 are connected with a second input port of each microwave network of eight radiation units in the radiation subarray. The input ports of the eight low-frequency horizontal power distribution networks 2 are connected with the output ports of the low-frequency vertical power distribution network 6, and the input ports of the eight high-frequency horizontal power distribution networks 4 are connected with the output ports of the high-frequency vertical power distribution network 8; the input port of the low-frequency vertical power distribution network 6 and the input port of the high-frequency vertical power distribution network 8 are connected with a combiner.
On the-45-degree polarization port, eight output ports of each low-frequency horizontal power distribution network 3 are connected with a first input port of each microwave network of eight radiation units in the radiation subarray, and eight output ports of each high-frequency horizontal power distribution network 5 are connected with a second input port of each microwave network of eight radiation units in the radiation subarray. The input ports of the eight low-frequency horizontal power distribution networks 3 are connected with the output ports of the low-frequency vertical power distribution network 7, and the input ports of the eight high-frequency horizontal power distribution networks 5 are connected with the output ports of the low-frequency vertical power distribution network 9; and the input/output port of the polarized low-frequency vertical power distribution network 3 and the input/output port of the high-frequency vertical power distribution network 5 are connected with the other path of combiner.
The embodiment has a single main lobe in the whole range of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz of the operating frequency band of the stadium antenna. The 3dB wave beam width in the whole working frequency range is 22-28 degrees. The power falling angle of 3dB to 20dB on two tangent planes in the horizontal direction and the vertical direction is not more than 10 degrees; the sidelobe level of the full three-dimensional space is not more than 20 dB. On the contour diagram of 3 dB-20 dB of the radiation directional diagram, the shape is near the positive direction. On the premise of ensuring that the interference of adjacent sectors in hot spot areas such as venues and the like is effectively reduced, frequency reuse is realized, and the capacity of a communication network is further improved, the total number of radiating units is reduced by 50%, the weight and the production cost of the antenna are reduced, the difficulty of antenna erection can be further reduced, and the miniaturization of the array antenna is realized.
It should be emphasized that, in each radiation subarray, the distance between adjacent oscillators in the horizontal direction is fixed, that is, the arrays are arranged at equal intervals, and in practical engineering, the arrays may also be arranged at unequal intervals. In the vertical direction, the distance between adjacent radiation sub-arrays is fixed. That is, the arrangement at equal intervals, and in actual engineering, the arrangement at unequal intervals may be used. Without departing from the spirit of the invention, it is also within the scope of the invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A dual-band dual-polarization fast drop rectangular shaped array antenna is characterized in that: the method comprises the following steps: an antenna radiation array plane (1) and a feed network;
the antenna radiation array surface (1) comprises N multiplied by N radiation units, the N radiation units in the horizontal direction form a group of radiation sub-arrays, and N is an integer not less than 2; the distances between the adjacent radiation units in the horizontal direction are the same and are marked as dx(ii) a The radiation subarrays have the same pitch in the vertical direction, which is marked as dy；dx、dyAll in the range of 0.4 times of central frequency wavelength to 1.6 times of central frequency wavelength; the working frequency of the radiation unit is within the frequency range of 1710 MHz-2170 MHz and 2300 MHz-2690 MHz;
the feed network includes: 2N low-frequency horizontal power distribution networks, 2N high-frequency horizontal power distribution networks, two low-frequency vertical power distribution networks and two high-frequency vertical power distribution networks; each radiation subarray corresponds to two low-frequency horizontal power distribution networks and two high-frequency horizontal power distribution networks;
each radiation unit comprises two polarization ports, namely a + 45-degree polarization port and a-45-degree polarization port, and the two polarization ports are respectively connected with a pair of microwave networks;
on a + 45-degree polarization port of a radiation unit of the same radiation subarray, a first input port of a microwave network is connected with an output port of a low-frequency horizontal power distribution network A, and a second input port of the microwave network is connected with an output port of a high-frequency horizontal power distribution network A; the input port of the low-frequency horizontal power distribution network A is connected with the output port of the low-frequency vertical power distribution network A, and the input port of the high-frequency horizontal power distribution network A is connected with the output port of the high-frequency vertical power distribution network A; the input port of the low-frequency vertical power distribution network A and the input port of the high-frequency vertical power distribution network A are connected with a combiner A;
on-45-degree polarization ports of radiation units of the same radiation subarray, a first input port of a microwave network is connected with an output port of a low-frequency horizontal power distribution network B, and a second input port of the microwave network is connected with an output port of a high-frequency horizontal power distribution network B; the input port of the low-frequency horizontal power distribution network B is connected with the output port of the low-frequency vertical power distribution network B, and the input port of the high-frequency horizontal power distribution network B is connected with the output port of the high-frequency vertical power distribution network B; the output port of the low-frequency vertical power distribution network B and the output port of the high-frequency vertical power distribution network B are connected with the path combiner B;
the radiating unit is a dual-polarized crossed dipole antenna or a dual-polarized metal patch antenna; the microwave network is a Wilkinson power divider or a directional coupler.
2. The dual-band dual-polarized fast dropping rectangular shaped array antenna according to claim 1, wherein: dx、dy0.5 times the wavelength of the central operating frequency.
3. A dual-band dual-polarized fast drop rectangular shaped array antenna as claimed in claim 1 or 2, wherein: the radiation subarrays have 8 groups.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110071373B (en) * | 2018-03-12 | 2023-03-14 | 京信通信技术(广州)有限公司 | Multi-system integrated antenna |
| CN108767494A (en) * | 2018-03-28 | 2018-11-06 | 北京空间飞行器总体设计部 | A kind of dual polarization rectangle figuration venue thinned array antenna |
| CN108832956A (en) * | 2018-06-29 | 2018-11-16 | 华为技术有限公司 | A kind of signal receiving/transmission device and antenna equipment |
| CN109273828A (en) * | 2018-09-29 | 2019-01-25 | 广东博纬通信科技有限公司 | A kind of miniaturization wideband rectangle transmission distance antenna |
| CN112103640B (en) * | 2019-06-17 | 2022-09-27 | 苏州速感智能科技有限公司 | Antenna array based on 5G millimeter wave base station and arrangement method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201408844Y (en) * | 2009-04-22 | 2010-02-17 | 中兴通讯股份有限公司 | Common-mode antenna device |
| EP1428294B1 (en) * | 2001-07-11 | 2011-10-05 | France Telecom | Reactive coupling antenna comprising two radiating elements |
| CN205004448U (en) * | 2015-10-23 | 2016-01-27 | 广东博纬通信科技有限公司 | Wide band array antenna |
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- 2017-09-15 CN CN201710832632.8A patent/CN107732465B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1428294B1 (en) * | 2001-07-11 | 2011-10-05 | France Telecom | Reactive coupling antenna comprising two radiating elements |
| CN201408844Y (en) * | 2009-04-22 | 2010-02-17 | 中兴通讯股份有限公司 | Common-mode antenna device |
| CN205004448U (en) * | 2015-10-23 | 2016-01-27 | 广东博纬通信科技有限公司 | Wide band array antenna |
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