CN104051848A - Intelligent vertical scanning antenna - Google Patents
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- CN104051848A CN104051848A CN201410317598.7A CN201410317598A CN104051848A CN 104051848 A CN104051848 A CN 104051848A CN 201410317598 A CN201410317598 A CN 201410317598A CN 104051848 A CN104051848 A CN 104051848A
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Abstract
The invention relates to an intelligent vertical scanning antenna. A micro-strip dielectric slab form and multi-port output are adopted, and the intelligent vertical scanning antenna has the advantages of being small in size, large in number of ports, low in cost, high in gain, wide in frequency band, high in data transmission rate, downward in compatibility and the like. According to the antenna, single antenna signal coverage with the half-power beam width of a vertical plane ranging from 50 degrees to 120 degrees and the half-power beam width of a horizontal plane ranging from 20 degrees to 40 degrees is achieved, the antenna works in the frequency band ranging from 1,700 MHz to 2,700 MHz, covers the SCDMA1785 network, the GSM1800, TD-SCDMA and TD-LTE networks operated by the China Mobile, the GSM1800,WCDMA and TD-LTE networks operated by the China Unicom and the CDMA2000 and TD-LTE networks operated by the China Telecom, multi-network integrating and site sharing are effectively promoted, the antenna can be used for carrying out large-area blind supplementing and improving the communication quality of local areas during mountain coverage, the antenna can meet the requirement for carrying out step-like coverage on signals of a large stadium during signal coverage of the large stadium, and the antenna can greatly reduce and even completely replace the layout and usage of various indoor distribution antennas in buildings during building coverage.
Description
Technical field
The present invention relates to mobile communication antenna technical field, relate in particular to a kind of vertical scanning smart antenna.
Background technology
LTE (long term evolution) is the Long Term Evolution of 3G communication, is the global standards of 4G, and it improves the aerial access technology that has strengthened 3G, has high data transmission rate, grouping transmission, low delay, covers the advantages such as wide and backward compatible.Smart antenna series of products, TD-LTE (4G network) leading products of releasing as China Mobile, are widely used the domestic cloth station on a large scale of carrying out at present.
But the smart antenna that Ge great antenna manufacturer goes into operation at present, be mainly used for that high tower base station construction, city large area cover, densely inhabited district covers among a small circle and square covering etc., adopt horizontal plane signal to cover the mode that beam scanning is communicated by letter with horizontal plane and realize.And to carrying out signal covering and communication in mountain region, the at present high tower base stations that adopt more, due to a varied topography changeable, light water simple scan is difficult to round Realization and covers, and has the features such as blind area and local communication be of poor quality; Cover as large stadium signal, light water simple scan can only carry out transversal scanning covering, can not meet large stadium and scan vertically the signal that is scalariform and cover, thereby have the shortcoming of the of poor quality and blind area of local communication; Cover and communication as the signal of building simultaneously, still adopt at present a large amount of indoor distribution antennas to cover maybe to need to utilize indoor distribution antenna to carry out large area and mend blindly, quantities is large, it is high to invest, and is unfavorable for indoor neat and artistic simultaneously.
Summary of the invention
The object of the invention is to propose a kind of vertical scanning smart antenna, it has that volume is little, higher, the bandwidth of gain, high data transmission rate and the advantage such as backward compatible, while covering for mountain region signal, can carry out large area mends blind and improves local communication quality, while covering for the signal of large stadium, can meet large stadium carries out scalariform covering demand to signal, while covering for building signal, the use that replaces indoor distribution antenna in building even completely can be reduced in a large number, the needs of current Mobile Communication Development can be met.
For reaching this object, the present invention by the following technical solutions:
A kind of vertical scanning smart antenna, comprise: radiant section, network merit portions, merit are divided coupling unit and reflecting plate, described radiant section and merit divide coupling unit to be arranged on the front of reflecting plate, described network merit portions is arranged on the reverse side of reflecting plate, and described merit is divided coupling unit to pass through network merit portions and is connected with radiant section;
Described radiant section comprises multiple radiating element assemblies, described radiating element assembly comprises dielectric-slab, dual-polarization radiating unit, Ba Lun base, coaxial cable and four hollow copper rivets, described dual-polarization radiating unit is arranged on dielectric-slab, described dielectric-slab is connected with reflecting plate by Ba Lun base, four described hollow copper rivets are vertically set on respectively four jiaos of dielectric-slab, and described coaxial cable is connected with dual-polarization radiating unit;
Described network merit portions comprises microstrip power divider and power splitter base plate, the output of described microstrip power divider is connected with dual-polarization radiating unit by coaxial cable, the input of described microstrip power divider divides coupling unit to be connected by coaxial cable and merit, and described microstrip power divider is fixed on the back side of reflecting plate by power splitter base plate;
Micro-band merit branch/coupler and merit branch/coupler base plate that described merit divides coupling unit to comprise multi-channel port, described micro-front that is fixed on reflecting plate with merit branch/coupler by merit branch/coupler base plate.
Wherein, the output of described microstrip power divider is connected with dual-polarization radiating unit by coaxial cable, is specially: the hole that the output of described microstrip power divider passes on Ba Lun base by coaxial cable is connected with dual-polarization radiating unit;
Described micro-band merit branch/coupler comprises 8 road ports, and described microstrip power divider comprises 8 road ports, and described micro-8 road ports with merit branch/coupler and 8 road ports of microstrip power divider connect one to one by coaxial cable.
Wherein, also comprise be fixedly connected with reflecting plate and be positioned at three groups of hypotenuse bar assemblies and 1 the straight flange bar assembly that merit is divided coupling unit one side, described in three groups, hypotenuse bar assembly comprises first group of hypotenuse bar assembly, second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly, and described first group of hypotenuse bar assembly, second group of hypotenuse bar assembly, the 3rd group of hypotenuse bar assembly and straight flange bar assembly are arranged in order in lateral along the Width of reflecting plate.
Wherein, the number of described radiating element assembly is 12, is 4 row, and every row comprise three radiating element assemblies; Wherein, first group of hypotenuse bar assembly is horizontally installed on the reflecting plate between the 1st row radiating element assembly and the 2nd row radiating element assembly, second group of hypotenuse bar assembly is horizontally installed on the reflecting plate between the 2nd row radiating element assembly and the 3rd row radiating element assembly, the 3rd group of hypotenuse bar assembly is horizontally installed on the reflecting plate between the 3rd row radiating element assembly and the 4th row radiating element assembly, and described straight flange bar assembly is arranged on the 4th row radiating element assembly and merit is divided on the reflecting plate between coupling unit.
Wherein, described dual-polarization radiating unit is printed on the tow sides of dielectric-slab and is electrically connected by through hole, and each dual-polarization radiating unit comprises two mutually orthogonal dipole radiation unit, and described dipole radiation unit presents polygon-shaped.
Wherein, distance between distance between described first group of hypotenuse bar assembly and second group of hypotenuse bar assembly and second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly is 70mm-80mm, distance between described the 3rd group of hypotenuse bar assembly and straight flange bar assembly is 70mm-80mm, described first group of hypotenuse bar assembly, second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly include two hypotenuses article that are oppositely arranged, the radian of described hypotenuse bar is 110 °-120 °, and the width of described straight flange bar assembly and hypotenuse bar assembly is 10.5mm-12.5mm.
Wherein, described Ba Lun base is the integrated solid symmetrical structure of die casting, and its surface is coated with coating, and described Ba Lun base is connected with reflecting plate is vertical, described dielectric-slab and the vertical connection of Ba Lun base and parallel with reflecting plate.
Wherein, the vertical plane half-power beam width of described smart antenna is 50 °～120 °, and the horizontal plane half-power beam width of described smart antenna is 20 °～40 °; The business beam that described smart antenna is propagated is between 0 °～60 °, and the broadcast beam that described smart antenna is propagated is between 30 °～120 °.
Wherein, described broadcast beam covers for vertical plane signal, micro-with the amplitude between the like-polarized multi-channel port of merit branch/coupler and phase place realization by controlling; Described business beam is for carrying out signal scanning and communicate by letter in vertical plane, micro-with the amplitude between the like-polarized multi-channel port of merit branch/coupler and phase place realization by controlling.
Wherein, described smart antenna vertical plane automatic scanning method is: according to the amplitude of described broadcast beam and business beam and phase place weights information, draw optimum amplitude and phase place weights; According to optimum amplitude and phase place weights, realize antenna vertical plane automatic scan by system control is micro-with the variation between the like-polarized multi-channel port of merit branch/coupler.
Beneficial effect:
A kind of vertical scanning smart antenna of the present invention is owing to adopting micro-dual-polarization radiating unit, microstrip power divider, micro-band merit branch/coupler with dielectric-slab form, and multiport output, have advantages of that volume is little, port is many, cost is low, be conducive to the design of beautified outside cover and the data traffic of two-forty be provided, and have that gain is high, bandwidth, high data transmission rate and the advantage such as backward compatible.Communicate by letter with beam scanning owing to adopting vertical plane wave beam to cover, in frequency band range, can realize 50 °～120 ° of single antenna vertical plane half-power beam widths, 20 °～40 ° signals coverings of horizontal plane, the signal that can meet as required the ground such as different mountain regions, large stadium, building completely covers and communication.This antenna can be operated in the frequency band range of 1700-2700MHz, contain SCDMA1785 network, the GSM1800 of China Mobile's operation, TD-SCDMA and TD-LTE network, the GSM1800 of CHINAUNICOM's operation, WCDMA and TD-LTE network, CDMA2000 and the TD-LTE network of China Telecom's operation, also can compatible DCS, PCS, UMTS, TD-FAD, the frequency ranges such as WIMAX, effectively promote many net fusions and website to share, while covering for mountain region, can carry out large area mends blind and improves some areas communication quality, while covering for the signal of large stadium, can meet large stadium carries out scalariform covering demand to signal, while covering for building, can reduce in a large number the layout and the use that replace various indoor distribution antenna in building even completely, the control of employing system, automatic, intelligentized communication mode, the high communication quality, can effectively control interference.Therefore, this smart antenna can meet the needs of current Mobile Communication Development, has wide market prospects.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of a kind of vertical scanning smart antenna of providing of the specific embodiment of the invention.
Fig. 2 is the structural representation of the radiant section of a kind of vertical scanning smart antenna of providing of the specific embodiment of the invention.
Fig. 3 is the Facad structure schematic diagram of a kind of vertical scanning smart antenna of providing of the specific embodiment of the invention;
Fig. 4 is the structure schematic diagram of a kind of vertical scanning smart antenna of providing of the specific embodiment of the invention.
In figure:
1-radiating element assembly; 2-network merit portions; 3-merit is divided coupling unit; 4-reflecting plate; 11-dielectric-slab; 12-dual-polarization radiating unit; 13-Ba Lun base; 14-hollow copper rivet; 21-microstrip power divider; 22-power splitter base plate; The micro-band merit of 31-branch/coupler; 32-merit branch/coupler base plate; 5-hypotenuse bar assembly; 6-straight flange bar assembly; 7-through hole; 8-coaxial cable.
Embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
As shown in Figures 1 to 4, a kind of vertical scanning smart antenna of the present invention, comprise: radiant section, network merit portions 2, merit are divided coupling unit 3 and reflecting plate 4, described radiant section and merit divide coupling unit 3 to be arranged on the front of reflecting plate 4, described network merit portions 2 is arranged on the reverse side of reflecting plate 4, and described merit divides coupling unit 3 to be connected with radiant section by network merit portions 2; Described radiant section comprises multiple radiating element assemblies 1, described radiating element assembly 1 comprises dielectric-slab 11, dual-polarization radiating unit 12, Ba Lun base 13, coaxial cable 8 and four hollow copper rivets 14, described dual-polarization radiating unit 12 is arranged on dielectric-slab 11, described dielectric-slab 11 is connected with reflecting plate 4 by Ba Lun base 13, four described hollow copper rivets 14 are vertically set on respectively four jiaos of dielectric-slab 11, and described coaxial cable 8 is connected with dual-polarization radiating unit 12; Described network merit portions 2 comprises microstrip power divider 21 and power splitter base plate 22, the output of described microstrip power divider 21 is connected with dual-polarization radiating unit 12 by coaxial cable 8, the input of described microstrip power divider 21 divides coupling unit 3 to be connected by coaxial cable 8 and merit, and described microstrip power divider 21 is fixed on the back side of reflecting plate 4 by power splitter base plate 22; Micro-band merit branch/coupler 31 and merit branch/coupler base plate 32 that described merit divides coupling unit 3 to comprise multi-channel port, described micro-front that is fixed on reflecting plate 4 with merit branch/coupler 31 by merit branch/coupler base plate 32.
To sum up, a kind of vertical scanning smart antenna of the present invention is owing to adopting micro-dual-polarization radiating unit 12, microstrip power divider 21, micro-band merit branch/coupler 31 with dielectric-slab form, and multiport output, have advantages of that volume is little, port is many, cost is low, be conducive to the design of beautified outside cover and the data traffic of two-forty be provided, and have that gain is high, bandwidth, high data transmission rate and the advantage such as backward compatible.Communicate by letter with beam scanning owing to adopting vertical plane wave beam to cover, in frequency band range, can realize 50 °～120 ° of single antenna vertical plane half-power beam widths, 20 °～40 ° signals coverings of horizontal plane, the signal that can meet as required the ground such as different mountain regions, large stadium, building completely covers and communication.This antenna can be operated in the frequency band range of 1700-2700MHz, contain SCDMA1785 network, GSM1800, TD-SCDMA and the TD-LTE network of China Mobile's operation, GSM1800, WCDMA and the TD-LTE network of CHINAUNICOM's operation, CDMA2000 and the TD-LTE network of China Telecom's operation, also can compatible DCS, PCS, the frequency range such as UMTS, TD-FAD, WIMAX, effectively promote many nets to merge and website shared.While covering for mountain region, can carry out large area mends blind and improves some areas communication quality, while covering for the signal of large stadium, can meet large stadium carries out scalariform covering demand to signal, while covering for building, can reduce in a large number the layout and the use that replace various indoor distribution antenna in building even completely; According to above-mentioned smart antenna structure, can realize business beam 0 °～60 °, the propagation of the combination wave beam of broadcast beam between 30 °～120 ° scopes, can need to select flexibly according to practical application, respectively combine wave beam and realize by the amplitude and the phase place weights that change between antenna output end mouth.The control of employing system, automatic, intelligentized communication mode, the high communication quality, can effectively control interference.Therefore, this smart antenna can meet the needs of current Mobile Communication Development, has wide market prospects.
Preferably, the output of described microstrip power divider 21 is connected with dual-polarization radiating unit 12 by coaxial cable 8, be specially: the output of described microstrip power divider 21 is connected with dual-polarization radiating unit 12 through the hole on Ba Lun base 13 by coaxial cable 8, can promote the cross polarization of dual-polarization radiating unit 12, and can in 1700-2700MHz band limits, there is good standing-wave ratio and directional diagram.
Preferably, in the present invention, described micro-band merit branch/coupler 31 comprises 8 road ports, and described microstrip power divider 21 comprises 8 road ports, and described micro-8 road ports with merit branch/coupler 31 and 8 road ports of microstrip power divider 21 connect one to one by coaxial cable 8.Described micro-band merit branch/coupler 31 can adopt the micro-version with dielectric-slab of one point of 2N (N=2,3,4,5,6,7,8) to realize, and by calibration Kou Ji 2N road output port, whole antenna is organically combined.In the present invention, adopt micro-be one point of eight micro-version with dielectric-slab with merit branch/coupler 31, by calibration mouthful and other eight roads output port whole antenna is organically combined.
It should be noted that, smart antenna of the present invention is realized antenna vertical plane automatic scan by the programming of composite wave beam weight.Can be according to the real-time call situation on the ground such as mountain region, large stadium, building, communicate by letter at the synthetic required business beam of vertical plane by system control antenna battle array, can carry out automatic scan at vertical plane, the intellectuality of Here it is this project antenna embodies.Its combination wave beam that can realize carrying comprise business beam at 0 °～60 °, broadcast beam within the scope of 30 °～120 °, can need to select flexibly according to practical application, respectively combine wave beam and realize by the amplitude and the phase place weights that change between antenna port.Wherein, described broadcast beam 65 degree cover for vertical plane signal, are realized by the associated change debugging of amplitude and phase place between like-polarized 4 road ports.Described business beam carries out signal scanning in vertical plane, is realized by the associated change debugging of amplitude and phase place between like-polarized 4 road ports.Broadcast beam vertical plane signal Cover Characteristics according to demand determines, business beam is determined according to the concrete incoming wave signal of communication of user in vertical plane.In frequency band range, this antenna need to provide several groups of amplitudes that are associated and phase place weights between like-polarized 4 road ports, according to the amplitude of broadcast beam and business beam and phase place weights information, draw optimum amplitude and phase place weights, realize antenna vertical plane automatic scan by system control is micro-with the variation between the like-polarized multi-channel port of merit branch/coupler 31.
As shown in Figure 2,3, the number of described radiating element assembly 1 is 12, is 4 row, and every row comprise three radiating element assemblies 1, connects to form array by Ba Lun base 13 and reflecting plate 4.Also comprise that be fixedly connected with reflecting plate 4 and be positioned at 5 and 1 straight flange bar assembly 6 of three groups of hypotenuse bar assemblies that merit is divided coupling unit 3 one sides, described in three groups, hypotenuse bar assembly 5 comprises first group of hypotenuse bar assembly, second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly, and described first group of hypotenuse bar assembly, second group of hypotenuse bar assembly, the 3rd group of hypotenuse bar assembly and straight flange bar assembly 6 are arranged in order in lateral along the Width of reflecting plate 4.Wherein, first group of hypotenuse bar assembly is horizontally installed on the reflecting plate 4 between the 1st row radiating element assembly and the 2nd row radiating element assembly, second group of hypotenuse bar assembly is horizontally installed on the reflecting plate 4 between the 2nd row radiating element assembly and the 3rd row radiating element assembly, the 3rd group of hypotenuse bar assembly is horizontally installed on the reflecting plate 4 between the 3rd row radiating element assembly and the 4th row radiating element assembly, and described straight flange bar assembly 6 is arranged on the 4th row radiating element assembly and merit is divided on the reflecting plate 4 between coupling unit 3.Preferably, distance between distance between described first group of hypotenuse bar assembly and second group of hypotenuse bar assembly and second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly is 70mm-80mm, distance between described the 3rd group of hypotenuse bar assembly and straight flange bar assembly 6 is 70mm-80mm, described first group of hypotenuse bar assembly, second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly include two hypotenuses article that are oppositely arranged, the radian of described hypotenuse bar is 110 °-120 °, and the width of described straight flange bar assembly 6 and hypotenuse bar assembly 5 is 10.5mm-12.5mm.Wherein, described Ba Lun base 13 is the integrated solid symmetrical structure of die casting, and its surface is coated with coating, and described Ba Lun base 13 is connected with reflecting plate 4 is vertical, described dielectric-slab 11 and the vertical connection of Ba Lun base 13 and parallel with reflecting plate 4.
The present invention utilizes radiant section to structure the formation on described reflecting plate 4, adopts the form of Si Lie eight tunnel outputs, and for realizing 20 °～30 ° of horizontal plane half-power beam widths, single-row radiant section adopts 1 group of battle array of three radiating element assemblies; Described reflecting plate 4 needs through specific distortion, associating hypotenuse bar assembly 5 and straight flange bar assembly 6, reflecting plate 4, hypotenuse bar assembly 5 and straight flange bar assembly 6 form reflecting plate 4 assemblies, realize at the single antenna vertical plane half-power beam width of required frequency range F section (1880MHz～1920MHz)/A section (2010MHz～2025MHz)/TD-LTE (2500MHz～2690MHz) and meet 100 ° ± 15 °/90 ° ± 15 °/65 ° ± 15 °.
As shown in Figure 3, described dual-polarization radiating unit 12 is printed on the tow sides of dielectric-slab 11 and is electrically connected by through hole 7, and each dual-polarization radiating unit 12 comprises two mutually orthogonal dipole radiation unit, and described dipole radiation unit presents polygon-shaped.Dual-polarization radiating unit 12 adopts micro-form with dielectric-slab to realize, in order to realize wide-band standing wave bandwidth and to reduce dipole radiation cellar area, the dipole radiation unit that dielectric-slab 11 tow sides are all printed presents polygon-shaped, the hollow copper rivet 14 of perpendicular media plate 11 is electrically connected with dual-polarization radiating unit 12, make dual-polarization radiating unit 12 end currents by hollow copper rivet 14 the earth that leads, to reach the order ground that increases bandwidth, and form between the radiating element of a pair of dipole and be electrically connected.
As shown in Figure 4, described microstrip power divider 21 adopts micro-ly to be realized with dielectric-slab, the form of a point three, is fixed on the back side of reflecting plate 4 by power splitter base plate 22.Three tunnel outputs are connected with three radiating element assemblies 1 of single-row radiant section respectively by coaxial cable 8, and input is connected with micro-band merit branch/coupler 31 mono-tunnel input.Utilize the PHASE DISTRIBUTION of the each radiating element assembly 1 of the single-row radiant section of coaxial cable length difference control, utilize microstrip power divider 21 to control the amplitude proportional of the each radiating element assembly 1 of radiant section.The amplitude and the phase place that require to regulate by microstrip power divider 21 the each radiating element assembly 1 of single-row radiant section according to the specific targets of antenna, this project demand electrical down-tilting 0 is spent, horizontal plane minor level≤-12dB.
As shown in Figure 3, describedly micro-ly adopt 1/8 merit to divide the form of coupling microstrip dielectric-slab 11 to realize with merit branch/coupler 31, be fixed on the front of reflecting plate 4 by merit branch/coupler base plate 32.It comprises 1 calibration port CAL and 8 inputs (output) port, by amplitude and phase place weights information between calibration port to 8 input (output) port, whole aerial array is organically combined.This project antenna requires in band limits, and 8 output port degrees of coupling meet (26 ± 2) dB.
Described broadcast beam covers for vertical plane signal, micro-with the amplitude between the like-polarized multi-channel port of merit branch/coupler 31 and phase place realization by controlling; Described business beam is for carrying out signal scanning and communicate by letter in vertical plane, micro-with the amplitude between the like-polarized multi-channel port of merit branch/coupler 31 and phase place realization by controlling.
Described antenna vertical plane automatic scanning method is: according to the amplitude of described broadcast beam and business beam and phase place weights information, draw optimum amplitude and phase place weights; According to optimum amplitude and phase place weights, realize antenna vertical plane automatic scan by system control is micro-with the variation between the like-polarized multi-channel port of merit branch/coupler 31.
To sum up, antenna of the present invention adopts 8 ports, micro-form with dielectric-slab to realize, antenna volume is little, port is many, cost is low, be conducive to the design of beautified outside cover and the data traffic of two-forty is provided, this antenna has the feature such as the expansion of higher gain, frequency spectrum resource and the dilatation of power system capacity, make antenna package contain multiple frequency ranges, multiple port and integrated, the signal that can meet the ground diverse locations such as served mountain region, large stadium, building covers and telex network; While covering for mountain region signal, can carry out large area mend blind, while covering for the signal of large stadium, the demand that can meet large stadium and signal is carried out to scalariform covering, while covering for building signal, can reduce or replace completely the use of indoor distribution antenna in building.Adopting vertical plane wave beam to cover communicates by letter with beam scanning, in frequency band range, can realize 50 °～120 ° of single antenna vertical plane half-power beam widths, 20 °～40 ° signals coverings of horizontal plane, the signal that can meet as required the ground such as different mountain regions, large stadium, building completely covers and communication; This antenna can be operated in the frequency band range of 1700-2700MHz, contain SCDMA1785 network, GSM1800, TD-SCDMA and the TD-LTE network of China Mobile's operation, GSM1800, WCDMA and the TD-LTE network of CHINAUNICOM's operation, CDMA2000 and the TD-LTE network of China Telecom's operation, also can compatible DCS, PCS, the frequency range such as UMTS, TD-FAD, WIMAX, effectively promote many net fusions and website to share, the control of employing system, automatically intelligentized communication mode,, the high communication quality, can effectively control interference.Therefore, this antenna can meet the needs of current Mobile Communication Development, has wide market prospects.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a vertical scanning smart antenna, it is characterized in that, comprise: radiant section, network merit portions (2), merit are divided coupling unit (3) and reflecting plate (4), described radiant section and merit divide coupling unit (3) to be arranged on the front of reflecting plate (4), described network merit portions (2) is arranged on the reverse side of reflecting plate (4), and described merit divides coupling unit (3) to be connected with radiant section by network merit portions (2);
Described radiant section comprises multiple radiating element assemblies (1), described radiating element assembly (1) comprises dielectric-slab (11), dual-polarization radiating unit (12), Ba Lun base (13), coaxial cable (8) and four hollow copper rivets (14), described dual-polarization radiating unit (12) is arranged on dielectric-slab (11), described dielectric-slab (11) is connected with reflecting plate (4) by Ba Lun base (13), four described hollow copper rivets (14) are vertically set on respectively four jiaos of dielectric-slab (11), described coaxial cable (8) is connected with dual-polarization radiating unit (12),
Described network merit portions (2) comprises microstrip power divider (21) and power splitter base plate (22), the output of described microstrip power divider (21) is connected with dual-polarization radiating unit (12) by coaxial cable (8), the input of described microstrip power divider (21) divides coupling unit (3) to be connected by coaxial cable (8) and merit, and described microstrip power divider (21) is fixed on the back side of reflecting plate (4) by power splitter base plate (22);
Micro-band merit branch/coupler (31) and merit branch/coupler base plate (32) that described merit divides coupling unit (3) to comprise multi-channel port, described micro-band merit branch/coupler (31) is fixed on the front of reflecting plate (4) by merit branch/coupler base plate (32).
2. a kind of vertical scanning smart antenna according to claim 1, it is characterized in that, the output of described microstrip power divider (21) is connected with dual-polarization radiating unit (12) by coaxial cable (8), is specially: the output of described microstrip power divider (21) is connected with dual-polarization radiating unit (12) through the hole on Ba Lun base (13) by coaxial cable (8);
Described micro-band merit branch/coupler (31) comprises 8 road ports, described microstrip power divider (21) comprises 8 road ports, and 8 road ports of 8 road ports of described micro-band merit branch/coupler (31) and microstrip power divider (21) connect one to one by coaxial cable (8).
3. a kind of vertical scanning smart antenna according to claim 1, it is characterized in that, also comprise be fixedly connected with reflecting plate (4) and be positioned at three groups of hypotenuse bar assemblies (5) and 1 the straight flange bar assembly (6) that merit is divided coupling unit (3) one sides, described in three groups, hypotenuse bar assembly (5) comprises first group of hypotenuse bar assembly, second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly, described first group of hypotenuse bar assembly, second group of hypotenuse bar assembly, the 3rd group of hypotenuse bar assembly and straight flange bar assembly (6) are arranged in order in lateral along the Width of reflecting plate (4).
4. a kind of vertical scanning smart antenna according to claim 3, is characterized in that, the number of described radiating element assembly (1) is 12, is 4 row, and every row comprise three radiating element assemblies (1); Wherein, first group of hypotenuse bar assembly is horizontally installed on the reflecting plate (4) between the 1st row radiating element assembly and the 2nd row radiating element assembly, second group of hypotenuse bar assembly is horizontally installed on the reflecting plate (4) between the 2nd row radiating element assembly and the 3rd row radiating element assembly, the 3rd group of hypotenuse bar assembly is horizontally installed on the reflecting plate (4) between the 3rd row radiating element assembly and the 4th row radiating element assembly, and described straight flange bar assembly (6) is arranged on the 4th row radiating element assembly and merit is divided on the reflecting plate (4) between coupling unit (3).
5. a kind of vertical scanning smart antenna according to claim 1, it is characterized in that, described dual-polarization radiating unit (12) is printed on the tow sides of dielectric-slab (11) and is electrically connected by through hole (7), and each dual-polarization radiating unit (12) comprises two mutually orthogonal dipole radiation unit, and described dipole radiation unit presents polygon-shaped.
6. a kind of vertical scanning smart antenna according to claim 3, it is characterized in that, distance between described first group of hypotenuse bar assembly and second group of hypotenuse bar assembly, and distance between second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly is 70mm-80mm, distance between described the 3rd group of hypotenuse bar assembly and straight flange bar assembly (6) is 70mm-80mm, described first group of hypotenuse bar assembly, second group of hypotenuse bar assembly and the 3rd group of hypotenuse bar assembly include two hypotenuses article that are oppositely arranged, the radian of described hypotenuse bar is 110 °-120 °, the width of described straight flange bar assembly (6) and hypotenuse bar assembly (5) is 10.5mm-12.5mm.
7. a kind of vertical scanning smart antenna according to claim 1, it is characterized in that, described Ba Lun base (13) is the integrated solid symmetrical structure of die casting, its surface is coated with coating, described Ba Lun base (13) and vertical connection of reflecting plate (4), described dielectric-slab (11) and the vertical connection of Ba Lun base (13) and parallel with reflecting plate (4).
8. a kind of vertical scanning smart antenna according to claim 1, is characterized in that, the vertical plane half-power beam width of described smart antenna is 50 °～120 °, and the horizontal plane half-power beam width of described smart antenna is 20 °～40 °; The business beam that described smart antenna is propagated is between 0 °～60 °, and the broadcast beam that described smart antenna is propagated is between 30 °～120 °.
9. a kind of vertical scanning smart antenna according to claim 8, is characterized in that, described broadcast beam covers for vertical plane signal, realizes by amplitude and the phase place controlled between the like-polarized multi-channel port of micro-band merit branch/coupler (31); Described business beam, for carrying out signal scanning and communicate by letter in vertical plane, is realized by amplitude and the phase place controlled between the like-polarized multi-channel port of micro-band merit branch/coupler (31).
10. a kind of vertical scanning smart antenna according to claim 9, is characterized in that, described smart antenna vertical plane automatic scanning method is: according to the amplitude of described broadcast beam and business beam and phase place weights information, draw optimum amplitude and phase place weights; According to optimum amplitude and phase place weights, realize antenna vertical plane automatic scan by the variation between the like-polarized multi-channel port of the micro-band merit of system control branch/coupler (31).
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| CN201410317598.7A CN104051848A (en) | 2014-07-03 | 2014-07-03 | Intelligent vertical scanning antenna |
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