CN105261826A - Directional dual-frequency antenna - Google Patents
Directional dual-frequency antenna Download PDFInfo
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- CN105261826A CN105261826A CN201510572413.1A CN201510572413A CN105261826A CN 105261826 A CN105261826 A CN 105261826A CN 201510572413 A CN201510572413 A CN 201510572413A CN 105261826 A CN105261826 A CN 105261826A
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Abstract
The invention discloses a directional dual-frequency antenna. The directional dual-frequency antenna comprises an irradiator, a microstrip Balun, a first transmission line, a second transmission line and a reflective plate, wherein the irradiator is provided with a groove, a gap and a bent part, the inner end of the gap is connected with the groove, the outer end of the gap is opened, a first edge of the bent part is connected with a first edge of the gap, and a second edge of the bent part is connected with a second edge of the gap; a first end of the first transmission line is connected with the irradiator, a second end of the first transmission line is connected with the microstrip Balun, and a first end of the second transmission line is connected with the irradiator; and the reflective plate is arranged below the irradiator, separated from the irradiator and connected with the microstrip Balun. According to the embodiment of the invention, the directional dual-frequency antenna has the advantages of ultra wide band, high gain, high front-to-back ratio, high axial cross polarization ratio, good consistency in directional diagram, small volume, simple structure, low manufacturing cost and the like, and is convenient to process.
Description
Technical field
The present invention relates to the communications field, in particular to directed dual-band antenna.
Background technology
Wifi antenna is an indispensable part in wifi communication link.At present, existing wifi antenna has one-band antenna and dual-band antenna (such as Yagi antenna).But dual-band antenna can only be operated in comparatively within the scope of narrow bandwidth.And, country variant and area different to offering of 5G frequency range, the wifi communication channel that causes country variant and area to use is different, and the working frequency range of wifi antenna is also just different, adds cost to producer in links such as design, the manufacturings.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of directed dual-band antenna with the advantage of ultra broadband.
Directed dual-band antenna according to the embodiment of the present invention comprises: radiant body, described radiant body has the line of rabbet joint, gap and bending part, the inner in described gap is connected with the described line of rabbet joint, the outer end in described gap is opened wide, first edge of described bending part is connected with first edge in described gap, and the Second Edge of described bending part is connected along with the Second Edge edge in described gap; Microstrip balun; First transmission line and the second transmission line, the first end of described first transmission line is connected with described radiant body, and the second end of described first transmission line is connected with described microstrip balun, and the first end of described second transmission line is connected with described radiant body; And reflecting plate, described reflecting plate to be located at below described radiant body and spaced apart with described radiant body, and described reflecting plate is connected with described microstrip balun.
There is according to the directed dual-band antenna 10 of the embodiment of the present invention advantage of ultra broadband.
In addition, directed dual-band antenna according to the above embodiment of the present invention can also have following additional technical characteristic:
According to one embodiment of present invention, described directed dual-band antenna also comprises coaxial cable, and the inner wire of described coaxial cable is connected with the second end of described second transmission line, and the outer conductor of described coaxial cable is connected with described reflecting plate with described microstrip balun.
According to one embodiment of present invention, described directed dual-band antenna also comprises loop lamellar body, described loop lamellar body to be located between described radiant body and described reflecting plate and contiguous described radiant body, described loop lamellar body respectively with described radiant body and described reflecting plate spaced apart.
According to one embodiment of present invention, described directed dual-band antenna also comprises first medium plate, and described radiant body is located on the upper surface of described first medium plate, and described loop lamellar body is located on the lower surface of described first medium plate.
According to one embodiment of present invention, described directed dual-band antenna also comprises second medium plate, described microstrip balun and described first transmission line are located on the first surface of described second medium plate, and described second transmission line is located on the second surface of described second medium plate.
According to one embodiment of present invention, described radiant body is the sheet metal be located on described first medium plate or the metal level be formed on described first medium plate, and described microstrip balun, described first transmission line and the second transmission line are the sheet metal be located on described second medium plate or the metal level be formed on described second medium plate.
According to one embodiment of present invention, described reflecting plate is stepped.
According to one embodiment of present invention, described reflecting plate comprises general U-shape section, from outward extending first flat segments of the free end of the first side wall of described U section, from outward extending second flat segments of the free end of the second sidewall of described U section, the first vertical section upwards extended from the outer end of described first flat segments and from the outer end of described second flat segments to the second vertical section of downward-extension.
According to one embodiment of present invention, the area of the projection of described reflecting plate in horizontal plane is greater than the area of the projection of described radiant body in horizontal plane.
According to one embodiment of present invention, described radiant body comprises: lamellar body, and described lamellar body has the described line of rabbet joint and described gap; And bending part, the first edge of described bending part is connected with first edge in described gap, and the Second Edge of described bending part is connected along with the Second Edge edge in described gap.
According to one embodiment of present invention, described lamellar body has longitudinal axis of symmetry, lateral symmetry axis and center, and the described line of rabbet joint is relative to described longitudinal axis of symmetry symmetry, relative to described lateral symmetry axisymmetrical, relative to described revenue centre symmetry.
According to one embodiment of present invention, described bending part is multiple and described gap is multiple, first edge of multiple described bending part is connected with first edge in multiple described gap correspondingly, the Second Edge of multiple described bending part is along being connected with the Second Edge edge in multiple described gap correspondingly, multiple described bending part stretches out to the same side of described lamellar body, wherein multiple described gap is relative to described longitudinal axis of symmetry, described lateral symmetry axis and described in the heart each arrange symmetrically, multiple described bending part is relative to described longitudinal axis of symmetry, described lateral symmetry axis and described in the heart each arrange symmetrically.
According to one embodiment of present invention, described bending part is U-shaped.
According to one embodiment of present invention, described bending part comprises: the first vertical plate and the second vertical plate, first edge of described first vertical plate is connected with first edge in described gap, and the first edge of described second vertical plate and the Second Edge in described gap are along being connected; And level board, the first edge of described level board is connected with the Second Edge edge of described first vertical plate and Second Edge is connected along with the Second Edge edge of described second vertical plate.
According to one embodiment of present invention, described bending part comprises further: the first hang plate and the second hang plate, first edge of described first hang plate and the Second Edge of described first vertical plate are along being connected, and the first edge of described second hang plate and the Second Edge of described second vertical plate are along being connected; And the 3rd hang plate and the 4th hang plate, first edge of described 3rd hang plate is connected with the Second Edge edge of described first hang plate and Second Edge edge is connected with the first edge of described level board, the Second Edge of the first edge of described 4th hang plate and described second hang plate is along to be connected and Second Edge is connected along with the Second Edge edge of described level board, and the angle of each and horizontal plane in wherein said first hang plate and described second hang plate is greater than the angle of each and horizontal plane in described 3rd hang plate and described 4th hang plate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the directed dual-band antenna according to the embodiment of the present invention;
Fig. 2 is the front view of the directed dual-band antenna according to the embodiment of the present invention;
Fig. 3 is the rearview of the directed dual-band antenna according to the embodiment of the present invention;
Fig. 4 is the vertical view of the directed dual-band antenna according to the embodiment of the present invention;
Fig. 5 is the vertical view of the radiant body of directed dual-band antenna according to the embodiment of the present invention;
Fig. 6 is the front view of the radiant body of directed dual-band antenna according to the embodiment of the present invention;
Fig. 7 is the partial structurtes schematic diagram of the directed dual-band antenna according to the embodiment of the present invention;
Fig. 8 is the partial structurtes schematic diagram of the directed dual-band antenna according to the embodiment of the present invention;
Fig. 9 is the structural representation of the loop lamellar body of directed dual-band antenna according to the embodiment of the present invention;
Figure 10 is the structural representation of the radiant body of directed dual-band antenna according to first embodiment of the invention;
Figure 11 is the structural representation of the radiant body of directed dual-band antenna according to first embodiment of the invention;
Figure 12 is the structural representation of the radiant body of directed dual-band antenna according to second embodiment of the present invention;
Figure 13 is the structural representation of the radiant body of directed dual-band antenna according to the 3rd embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings directed dual-band antenna 10 according to the embodiment of the present invention is described.As shown in Fig. 1-Fig. 9, comprise radiant body 101, microstrip balun 102, first transmission line 1031, second transmission line 1032 and reflecting plate 104 according to the directed dual-band antenna 10 of the embodiment of the present invention.
Radiant body 101 has the line of rabbet joint 1011, gap 1015 and bending part 1014, the inner in gap 1015 is connected with the line of rabbet joint 1011, the outer end in gap 1015 is opened wide, first edge of bending part 1014 is connected with first edge in gap 1015, and the Second Edge of bending part 1014 is connected along with the Second Edge edge in gap 1015.The first end of the first transmission line 1031 is connected with radiant body 101, and the second end of the first transmission line 1031 is connected with microstrip balun 102, and the first end of the second transmission line 1032 is connected with radiant body 101.Reflecting plate 104 is located at below radiant body 101, and reflecting plate 104 is spaced apart with radiant body 101, and reflecting plate 104 is connected with microstrip balun 102.Wherein, the inner in gap 1015 refers to that the end at the middle part of the contiguous radiant body 101 in gap 1015, the outer end in gap 1015 refer to the end at the middle part away from radiant body 101 in gap 1015.
That is, radiant body 101 has the line of rabbet joint 1011, the inner peripheral 1013 that radiant body 101 has outer peripheral edges 1012 and limited by the line of rabbet joint 1011.Radiant body 101 has the bending part 1014 of protrusion, and bending part 1014 has groove, and this groove has and opens wide and the opening of penetrating radiation body 101 towards the surface of radiant body 101, and this opening forms gap 1015.In other words, gap 1015 throughout radiation body 101.
Directed dual-band antenna 10 according to the embodiment of the present invention passes through to arrange the radiant body 101 with bending part 1014, because bending part 1014 has foldable structure, thus multiple radiation areas that the surface of radiant body 101 can be made to exist are concentrated, shorten the spacing of each radiation source, to realize the gain of the better directionality of directional diagram and Geng Gao.Specifically, the radiant body 101 with bending part 1014 can make the wave beam of directed dual-band antenna 10 not divide, namely reduce the spacing of radiation source and keep the electrical length of directed dual-band antenna 10 constant, thus realize High-frequency and low-frequency close to consistent wave beam, make directed dual-band antenna 10 have consistent wave cover at High-frequency and low-frequency.
Directed dual-band antenna 10 according to the embodiment of the present invention can work in double frequency-band, realizes ultra broadband (2400MHz-2500MHz and 4900MHz-6000MHz).And, according to the directed dual-band antenna 10 of the embodiment of the present invention, there is high-gain (10dBi), high before and after the advantage such as better than (20dB), high axial cross polarization ratio (10dB ± 60deg), directional diagram consistency.
In addition, according to the channel of the directed dual-band antenna 10 of embodiment of the present invention wifi work all right covering the whole world, the required band requirement of domestic and international wifi antenna is met.According to the directed dual-band antenna 10 of the embodiment of the present invention, also there is the little advantage of volume, easily hide, office block, market, school etc. public place can be widely used in.
Therefore, according to the directed dual-band antenna 10 of the embodiment of the present invention have ultra broadband, high-gain, high before and after than, high axial cross polarization than, directional diagram consistency is good, directionality is good, volume is little, structure is simple, be convenient to the advantages such as processing, low cost of manufacture.
And, country variant and area different to offering of 5G frequency range, the wifi communication channel that causes country variant and area to use is different, and the working frequency range of wifi antenna is also just different.Because the directed dual-band antenna 10 according to the embodiment of the present invention has ultra broadband, therefore may be used for the wifi communication channel that every country and area use, thus there is the advantage of applied range.
Advantageously, can be the directed dual-band antenna of WIFI according to the directed dual-band antenna 10 of the embodiment of the present invention.
As shown in Fig. 1-Fig. 9, comprise radiant body 101, microstrip balun 102, first transmission line 1031, second transmission line 1032, reflecting plate 104, coaxial cable 105, loop lamellar body 106, first medium plate 1071 and second medium plate 1072 according to the directed dual-band antenna 10 of some embodiments of the present invention.
Reflecting plate 104 is connected with the lower end of microstrip balun 102 with the outer conductor 1051 of coaxial cable 105.Reflecting plate 104 can be planar metallic structure, also can be nonplanar metallic structure.Advantageously, as shown in Figure 1-Figure 3, reflecting plate 104 is stepped.In other words, reflecting plate 104 can be stepped reflecting plate, and the outer peripheral edges of reflecting plate 104 are rule or irregular polygon.By being configured to by reflecting plate 104 stepped and combining folding bending part 1014, thus effectively can reduce electromagnetic wave energy dispersion, improve directional diagram and the front and back ratio of directed dual-band antenna 10, improve the gain of directed dual-band antenna 10 simultaneously.
As shown in Figure 1-Figure 3, in one embodiment of the invention, reflecting plate 104 comprises general U-shape section 1041, from outward extending first flat segments 1042 of the free end of the first side wall 10411 of U section 1041, from outward extending second flat segments 1043 of the free end of the second sidewall 10412 of U section 1041, the first vertical section 1044 upwards extended from the outer end of the first flat segments 1042 and from the outer end of the second flat segments 1043 to the second vertical section 1045 of downward-extension.Directional diagram and the front and back ratio of directed dual-band antenna 10 can be improved thus further, improve the gain of directed dual-band antenna 10 simultaneously further.
That is, reflecting plate 104 comprises the vertical section 1044 of U section 1041, first flat segments 1042, second flat segments 1043, first and the second vertical section 1045.The inner of first flat segments 1042 is connected with the upper end of the first side wall 10411 of U section 1041, the outer end of the first flat segments 1042 is connected with the lower end of the first vertical section 1044, the inner of second flat segments 1043 is connected with the upper end of the second sidewall 10412 of U section 1041, and the outer end of the second flat segments 1043 is connected with the lower end of the second vertical section 1045.Wherein, inward-outward direction is as shown in the arrow A in Fig. 2 and Fig. 3.
As shown in Figures 2 and 3, advantageously, the diapire 10413 of U section 1041 is flatly arranged, the first side wall 10411 of U section 1041 and the second sidewall 10412 are arranged vertically, first flat segments 1042 and the second flat segments 1043 are flatly arranged, and the first vertical section 1044 and the second vertical section 1045 are arranged vertically.Wherein, reflecting plate 104 can be integral piece, and namely the vertical section of U section 1041, first flat segments 1042, second flat segments 1043, first 1044 and the second vertical section 1045 are integrally formed.
As shown in Figure 1, Figure 2 and shown in Fig. 4-Fig. 6, radiant body 101 is located on the upper surface of first medium plate 1071, and loop lamellar body 106 is located on the lower surface of first medium plate 1071.Wherein, above-below direction is as shown in the arrow B in Fig. 2 and Fig. 3.By arranging first medium plate 1071, thus radiant body 101 and loop lamellar body 106 can more easily, be firmly installed.
That is, first medium plate 1071 is located between loop lamellar body 106 and radiant body 101, and the lower surface of first medium plate 1071 is connected with loop lamellar body 106, and the upper surface of first medium plate 1071 is connected with radiant body 101.
Advantageously, radiant body 101 is the sheet metal be located on first medium plate 1071 or the metal level be formed on first medium plate 1071, and loop lamellar body 106 is the sheet metal be located on first medium plate 1071 or the metal level be formed on first medium plate 1071.
First medium plate 1071 is positioned at the top of the first flat segments 1042 and the second flat segments 1043 and does not contact with the second flat segments 1043 with the first flat segments 1042, first medium plate 1071 between the first vertical section 1044 and the second vertical section 1045, as shown in Figure 1-Figure 3.
Advantageously, the area of the projection of reflecting plate 104 in horizontal plane is greater than the area of the projection of radiant body 101 in horizontal plane.Advantageously, the edge of the projection of reflecting plate 104 in horizontal plane is positioned at the outside of radiant body 101 at the edge of the projection of horizontal plane, i.e. the edge of the projection of radiant body 101 in horizontal plane is positioned at the inner side of reflecting plate 104 at the edge of the projection of horizontal plane.
Radiant body 101 is the irradiation structure of directed dual-band antenna 10.Radiant body 101 can be metalwork, and namely radiant body 101 can be made of metal.The outer peripheral edges of radiant body 101 are regular polygon (such as rectangle) or irregular polygon.
As shown in Fig. 1, Fig. 4, Fig. 5 and Figure 10-Figure 12, radiant body 101 comprises lamellar body 1016 and bending part 1014.Lamellar body 1016 has the line of rabbet joint 1011 and gap 1015.The inner in gap 1015 is connected with the line of rabbet joint 1011, and the outer end in gap 1015 is opened wide.First edge of bending part 1014 is connected with first edge in gap 1015, and the Second Edge of bending part 1014 is connected along with the Second Edge edge in gap 1015.
Because bending part 1014 has foldable structure, thus multiple radiation areas that the surface of radiant body 101 can be made to exist are concentrated, and shorten the spacing of each radiation source, to realize the gain of the better directionality of directional diagram and Geng Gao.Specifically, the radiant body 101 with bending part 1014 can make the wave beam of directed dual-band antenna 10 not divide, namely reduce the spacing of radiation source and keep the electrical length of directed dual-band antenna 10 constant, thus realize High-frequency and low-frequency close to consistent wave beam, make directed dual-band antenna 10 have consistent wave cover at High-frequency and low-frequency.
As the special case of a dual-band antenna, in WIFI application, do not have the channel-shaped slot antenna of foldable structure (namely not having the channel-shaped slot antenna of bending part 1014) can beam splitting be produced in 5GHz frequency range, after adding foldable structure (i.e. bending part 1014), can ensure that 2.4GHz frequency range and 5GHz band beam are consistent.
Bending part 1014 is formed by a part for punching press lamellar body 1016 or bending part 1014 is welded on lamellar body 1016.Can dielectric material be added in bending part 1014, also can not add dielectric material.Lamellar body 1016 can be planar metallic structure, and gap 1015 is along the through lamellar body 1016 of thickness direction (such as above-below direction) of lamellar body 1016.The line of rabbet joint 1011 can be regular polygon or irregular polygon, and gap 1015 can be regular polygon or irregular polygon.
Advantageously, lamellar body 1016 has longitudinal axis of symmetry L1, lateral symmetry axis L2 and center, and the line of rabbet joint 1011 is symmetrical relative to longitudinal axis of symmetry L1, symmetrical relative to lateral symmetry axis L2, symmetrical relative to this revenue centre.The structure of radiant body 101 can be made thus more reasonable.
As shown in Fig. 1, Fig. 4, Fig. 5, Figure 10 and Figure 11, in first embodiment of the present invention, bending part 1014 is multiple and gap 1015 is multiple, first edge of multiple bending part 1014 is connected with first edge in multiple gap 1015 correspondingly, and the Second Edge of multiple bending part 1014 is along being connected with the Second Edge edge in multiple gap 1015 correspondingly.In other words, the quantity of bending part 1014 equals the quantity in gap 1015.Multiple bending part 1014 stretches out to the same side of lamellar body 1016, multiple gap 1015 relative to longitudinal axis of symmetry L1, lateral symmetry axis L2 and in this in the heart each arrange symmetrically, multiple bending part 1014 relative to longitudinal axis of symmetry L1, lateral symmetry axis L2 and in this in the heart each arrange symmetrically.
Particularly, bending part 1014 and gap 1015 can be four (as shown in Figure 10), and bending part 1014 and gap 1015 can be also two (as shown in figure 11).
In a second embodiment of the present invention, as shown in figure 12, bending part 1014 is multiple and gap 1015 is multiple, first edge of multiple bending part 1014 is connected with first edge in multiple gap 1015 correspondingly, and the Second Edge of multiple bending part 1014 is along being connected with the Second Edge edge in multiple gap 1015 correspondingly.A part in multiple bending part 1014 is stretched out to the first side of lamellar body 1016, and the remainder in multiple bending part 1014 stretches out to the second side of lamellar body 1016, and the first side of lamellar body 1016 is relative with the second side of lamellar body 1016.Such as, the part (two bending parts 1014) in multiple bending part 1014 is stretched out to the top of lamellar body 1016, and the remainder (two other bending part 1014) in multiple bending part 1014 stretches out to the below of lamellar body 1016.
Wherein, multiple gap 1015 relative to longitudinal axis of symmetry L1, lateral symmetry axis L2 and in this in the heart each arrange symmetrically, multiple bending part 1014 relative to longitudinal axis of symmetry L1, lateral symmetry axis L2 and in this in the heart each arrange symmetrically.The structure of radiant body 101 can be made thus more reasonable.
As shown in figure 13, in the 3rd embodiment of the present invention, radiant body 101 comprises lamellar body 1016 and multiple bending part 1014, and lamellar body 1016 has multiple gap 1015, and the inner in each gap 1015 is connected with the line of rabbet joint 1011, and the outer end in each gap 1015 is opened wide.First edge of multiple bending part 1014 is connected with first edge in multiple gap 1015 correspondingly, and the Second Edge of multiple bending part 1014 is along being connected with the Second Edge edge in multiple gap 1015 correspondingly.Wherein, lamellar body 1016 forms a part for the line of rabbet joint 1011, and bending part 1014 forms the remainder of the line of rabbet joint 1011.In other words, the line of rabbet joint 1011 is nonplanar structure.Directed dual-band antenna 10 can be made thus in the frequency band of 5G to realize good wave cover.
Advantageously, lamellar body 1016 has longitudinal axis of symmetry L1, lateral symmetry axis L2 and center, and the line of rabbet joint 1011 is symmetrical relative to longitudinal axis of symmetry L1, symmetrical relative to lateral symmetry axis L2, symmetrical relative to this revenue centre.The structure of radiant body 101 can be made thus more reasonable.
As shown in figure 13, gap 1015 is two and bending part 1014 is two, two gaps 1015 relative to longitudinal axis of symmetry L1, lateral symmetry axis L2 and in this in the heart each arrange symmetrically, two bending parts 1014 relative to longitudinal axis of symmetry L1, lateral symmetry axis L2 and in this in the heart each arrange symmetrically.The structure of radiant body 101 can be made thus more reasonable.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 10-Figure 13, bending part 1014 is U-shaped.Particularly, bending part 1014 comprises the first vertical plate 10141, second vertical plate 10142 and level board 10143.First edge of the first vertical plate 10141 is connected with first edge in gap 1015, and the first edge of the second vertical plate 10142 and the Second Edge in gap 1015 are along being connected.First edge of level board 10143 and the Second Edge of the first vertical plate 10141 are along being connected, and the Second Edge of level board 10143 is connected along with the Second Edge edge of the second vertical plate 10142.
As shown in Figure 1 and Figure 4, bending part 1014 comprises the first hang plate 10144, second hang plate 10145, the 3rd hang plate 10146 and the 4th hang plate 10147 further.First edge of the first hang plate 10144 and the Second Edge of the first vertical plate 10141 are along being connected, and the first edge of the second hang plate 10145 and the Second Edge of the second vertical plate 10142 are along being connected.First edge of the 3rd hang plate 10146 and the Second Edge of the first hang plate 10144 are along being connected, the Second Edge of the 3rd hang plate 10146 is along being connected with the first edge of level board 10143, first edge of the 4th hang plate 10147 and the Second Edge of the second hang plate 10145 are along being connected, and the Second Edge of the 4th hang plate 10147 is connected along with the Second Edge edge of level board 10143.
Wherein, the angle of each and horizontal plane in the first hang plate 10144 and the second hang plate 10145 is greater than the angle of each and horizontal plane in the 3rd hang plate 10146 and the 4th hang plate 10147.The surface of radiant body 101 not only can be made thus to there are more radiation areas, and multiple radiation areas can be made more concentrated, further shorten the spacing of each radiation source, to realize the gain of the better directionality of directional diagram and Geng Gao better.
Advantageously, the first hang plate 10144 and the angle of horizontal plane equal the angle of the second hang plate 10145 and horizontal plane, and the 3rd hang plate 10146 and the angle of horizontal plane equal the angle of the 4th hang plate 10147 and horizontal plane.
Loop lamellar body 106 is located on the lower surface of first medium plate 1071.As shown in Figure 9, loop lamellar body 106 comprises two or more separate metal unit, and the outer peripheral edges of each metal unit are regular polygon or irregular polygon, and each metal unit is planar structure or nonplanar structure.By arranging loop lamellar body 106, thus matching circuit and matched impedance can be formed, making directed dual-band antenna 10 form multiple resonance point, widening the bandwidth of operation of directed dual-band antenna 10.
In an example of the present invention, loop lamellar body 106 is located between radiant body 101 and reflecting plate 104, and the contiguous radiant body 101 of loop lamellar body 106, loop lamellar body 106 respectively with radiant body 101 and reflecting plate 104 spaced apart.
As shown in Figure 1-Figure 3, in examples more of the present invention, second medium plate 1072 is between reflecting plate 104 and first medium plate 1071.Particularly, second medium plate 1072 is between the diapire 10413 and first medium plate 1071 of the U section 1041 of reflecting plate 104.
Wherein, microstrip balun 102 and the first transmission line 1031 are located at (such as front surface) on the first surface of second medium plate 1072, and the second transmission line 1032 is located at (such as rear surface) on the second surface of second medium plate 1072.Fore-and-aft direction is as shown in the arrow C in Fig. 1.In other words, second medium plate 1072 can be located at microstrip balun 102 and between the first transmission line 1031 and the second transmission line 1032, microstrip balun 102 is connected with the front surface of second medium plate 1072 with the first transmission line 1031, and the second transmission line 1032 is connected with the rear surface of second medium plate 1072.
By arranging second medium plate 1072, thus microstrip balun 102, first transmission line 1031 and the second transmission line 1032 more easily, firmly can be installed.That is, first medium plate 1071 and second medium plate 1072 can play the object of performance of fixed orientation dual-band antenna 10, stable orientation dual-band antenna 10, can also reduce the size of directed dual-band antenna 10 simultaneously, reduce the cost of directed dual-band antenna 10.
Advantageously, microstrip balun 102, first transmission line 1031 and the second transmission line 1032 are the sheet metal be located on second medium plate 1072 or the metal level be formed on second medium plate 1072.
As shown in Figure 2, the first end (such as upper end) of the first transmission line 1031 is connected with radiant body 101, and second end (such as lower end) of the first transmission line 1031 is connected with microstrip balun 102.As shown in Figure 3, the first end (such as upper end) of the second transmission line 1032 is connected with radiant body 101.First transmission line 1031 and the second transmission line 1032 form two balanced transmission line.
That is, coaxial cable 105 connects transmission line one end of reflecting plate 104 and band Ba Lun simultaneously from this pair of balanced transmission line side, the inner wire 1052 of coaxial cable 105 is connected with one end of another transmission lines of this pair of balanced transmission line.
Advantageously, reflecting plate 104 is connected with microstrip balun 102, and reflecting plate 104 is of coupled connections with the exocuticle of coaxial cable 105.
Directed dual-band antenna 10 according to the embodiment of the present invention can adopt multiple feeding classification.Such as, the outer conductor 1051 of coaxial cable 105 can connect the bottom of reflecting plate 104.
As shown in Figure 7 and Figure 8, in a concrete example of the present invention, the inner wire 1052 of coaxial cable 105 is connected with the second end of the second transmission line 1032, and the outer conductor 1051 of coaxial cable 105 is connected with reflecting plate 104 with microstrip balun 102.
Microstrip balun 102 can be symmetrical planar metal lamellar body, and the first transmission line 1031 and the second transmission line 1032 have specific characteristic impedance.Microstrip balun 102 is connected with the first transmission line 1031, and suitable mode can be selected to carry out feed.Such as, when coaxial cable 105 connects from two balanced transmission line side: the first end of the first transmission line 1031 connects radiant body 101, second end be connected with microstrip balun 102 of the first transmission line 1031 is connected with the outer conductor 1051 of coaxial cable 105, the first end of the second transmission line 1032 connects the inner wire 1052 of the second end connecting coaxial cable 105 of radiant body 101, second transmission line 1032.
Existing feeding classification uses coaxial cable direct feed on antenna, feed current can be caused so uneven, the current strength of antenna surface is distributed asymmetric, cause the antenna pattern of antenna asymmetric.
According to the directed dual-band antenna 10 of the embodiment of the present invention by utilizing two balanced transmission line (first transmission line 1031 and the second transmission line 1032) feeding classification of microstrip balun 102 turns, can solve the phenomenon of feeding unbalance preferably, directional diagram realizes good symmetry.
Directed dual-band antenna 10 according to the embodiment of the present invention introduces loop lamellar body 106 on the basis of annular slot antenna structure, thus makes directed dual-band antenna 10 form multiple resonance point, has widened the bandwidth of operation of directed dual-band antenna 10.And, connected the feeding classification of the two balanced transmission line of microstrip balun 102 turns by coaxial cable 105, ensure that the balance of feed.Adopt the radiant body 101 (i.e. folding radiant body 101) with bending part 1014, multiple radiation areas on the surface of directed dual-band antenna 10 can be made to concentrate, shorten the spacing of each radiation source, thus realize the better directionality of directional diagram of directed dual-band antenna 10.
In addition, adopt the stair-stepping reflecting plate of more piece 104 and in conjunction with folding radiant body 101, effectively can improve the directional diagram directionality of directed dual-band antenna 10, improving the gain of directed dual-band antenna 10 simultaneously.The structure of directed dual-band antenna 10 is simple, and processing technology is simple, reduce further the cost and price of directed dual-band antenna 10.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (15)
1. a directed dual-band antenna, is characterized in that, comprising:
Radiant body, described radiant body has the line of rabbet joint, gap and bending part, and the inner in described gap is connected with the described line of rabbet joint, and the outer end in described gap is opened wide, first edge of described bending part is connected with first edge in described gap, and the Second Edge of described bending part is connected along with the Second Edge edge in described gap;
Microstrip balun;
First transmission line and the second transmission line, the first end of described first transmission line is connected with described radiant body, and the second end of described first transmission line is connected with described microstrip balun, and the first end of described second transmission line is connected with described radiant body; With
Reflecting plate, described reflecting plate to be located at below described radiant body and spaced apart with described radiant body, and described reflecting plate is connected with described microstrip balun.
2. directed dual-band antenna according to claim 1, it is characterized in that, also comprise coaxial cable, the inner wire of described coaxial cable is connected with the second end of described second transmission line, and the outer conductor of described coaxial cable is connected with described reflecting plate with described microstrip balun.
3. directed dual-band antenna according to claim 1 and 2, it is characterized in that, also comprise loop lamellar body, described loop lamellar body to be located between described radiant body and described reflecting plate and contiguous described radiant body, described loop lamellar body respectively with described radiant body and described reflecting plate spaced apart.
4. directed dual-band antenna according to claim 3, is characterized in that, also comprises first medium plate, and described radiant body is located on the upper surface of described first medium plate, and described loop lamellar body is located on the lower surface of described first medium plate.
5. directed dual-band antenna according to claim 4, it is characterized in that, also comprise second medium plate, described microstrip balun and described first transmission line are located on the first surface of described second medium plate, and described second transmission line is located on the second surface of described second medium plate.
6. directed dual-band antenna according to claim 5, it is characterized in that, described radiant body is the sheet metal be located on described first medium plate or the metal level be formed on described first medium plate, and described microstrip balun, described first transmission line and the second transmission line are the sheet metal be located on described second medium plate or the metal level be formed on described second medium plate.
7. the directed dual-band antenna according to any one of claim 1-6, is characterized in that, described reflecting plate is stepped.
8. directed dual-band antenna according to claim 7, it is characterized in that, described reflecting plate comprises general U-shape section, from outward extending first flat segments of the free end of the first side wall of described U section, from outward extending second flat segments of the free end of the second sidewall of described U section, the first vertical section upwards extended from the outer end of described first flat segments and from the outer end of described second flat segments to the second vertical section of downward-extension.
9. the directed dual-band antenna according to any one of claim 1-8, is characterized in that, the area of the projection of described reflecting plate in horizontal plane is greater than the area of the projection of described radiant body in horizontal plane.
10. the directed dual-band antenna according to any one of claim 1-9, is characterized in that, described radiant body comprises:
Lamellar body, described lamellar body has the described line of rabbet joint and described gap; With
Bending part, the first edge of described bending part is connected with first edge in described gap, and the Second Edge of described bending part is connected along with the Second Edge edge in described gap.
11. directed dual-band antennas according to claim 10, it is characterized in that, described lamellar body has longitudinal axis of symmetry, lateral symmetry axis and center, and the described line of rabbet joint is relative to described longitudinal axis of symmetry symmetry, relative to described lateral symmetry axisymmetrical, relative to described revenue centre symmetry.
12. directed dual-band antennas according to claim 11, it is characterized in that, described bending part is multiple and described gap is multiple, first edge of multiple described bending part is connected with first edge in multiple described gap correspondingly, the Second Edge of multiple described bending part is along being connected with the Second Edge edge in multiple described gap correspondingly, multiple described bending part stretches out to the same side of described lamellar body, wherein multiple described gap is relative to described longitudinal axis of symmetry, described lateral symmetry axis and described in the heart each arrange symmetrically, multiple described bending part is relative to described longitudinal axis of symmetry, described lateral symmetry axis and described in the heart each arrange symmetrically.
13. directed dual-band antennas according to any one of claim 1-12, it is characterized in that, described bending part is U-shaped.
14. directed dual-band antennas according to any one of claim 1-13, it is characterized in that, described bending part comprises:
First vertical plate and the second vertical plate, the first edge of described first vertical plate is connected with first edge in described gap, and the first edge of described second vertical plate and the Second Edge in described gap are along being connected; With
Level board, the first edge of described level board is connected with the Second Edge edge of described first vertical plate and Second Edge is connected along with the Second Edge edge of described second vertical plate.
15. directed dual-band antennas according to any one of claim 1-14, it is characterized in that, described bending part comprises further:
First hang plate and the second hang plate, the first edge of described first hang plate and the Second Edge of described first vertical plate are along being connected, and the first edge of described second hang plate and the Second Edge of described second vertical plate are along being connected; And
3rd hang plate and the 4th hang plate, first edge of described 3rd hang plate is connected with the Second Edge edge of described first hang plate and Second Edge edge is connected with the first edge of described level board, the Second Edge of the first edge of described 4th hang plate and described second hang plate is along to be connected and Second Edge is connected along with the Second Edge edge of described level board, and the angle of each and horizontal plane in wherein said first hang plate and described second hang plate is greater than the angle of each and horizontal plane in described 3rd hang plate and described 4th hang plate.
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| CN201510572413.1A CN105261826B (en) | 2015-09-09 | 2015-09-09 | Orient dual-band antenna |
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| CN201510572413.1A CN105261826B (en) | 2015-09-09 | 2015-09-09 | Orient dual-band antenna |
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| CN105261826B CN105261826B (en) | 2019-01-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207495A (en) * | 2016-08-23 | 2016-12-07 | 江苏省东方世纪网络信息有限公司 | Dual polarized antenna and radiating element thereof |
| CN106340711A (en) * | 2016-08-23 | 2017-01-18 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna |
| CN106450715A (en) * | 2016-08-23 | 2017-02-22 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna and radiation unit thereof |
| CN111430931A (en) * | 2020-04-01 | 2020-07-17 | 武汉虹信通信技术有限责任公司 | Radiation sheet for broadband antenna and broadband antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490174A (en) * | 2013-09-24 | 2014-01-01 | 华南理工大学 | Circularly-polarized broadband base station antenna |
| CN104078748A (en) * | 2013-03-25 | 2014-10-01 | 富士康(昆山)电脑接插件有限公司 | Doublet antenna |
| CN204407509U (en) * | 2014-12-18 | 2015-06-17 | 佛山市粤海信通讯有限公司 | A kind of Novel wall hanger antenna |
-
2015
- 2015-09-09 CN CN201510572413.1A patent/CN105261826B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078748A (en) * | 2013-03-25 | 2014-10-01 | 富士康(昆山)电脑接插件有限公司 | Doublet antenna |
| CN103490174A (en) * | 2013-09-24 | 2014-01-01 | 华南理工大学 | Circularly-polarized broadband base station antenna |
| CN204407509U (en) * | 2014-12-18 | 2015-06-17 | 佛山市粤海信通讯有限公司 | A kind of Novel wall hanger antenna |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207495A (en) * | 2016-08-23 | 2016-12-07 | 江苏省东方世纪网络信息有限公司 | Dual polarized antenna and radiating element thereof |
| CN106340711A (en) * | 2016-08-23 | 2017-01-18 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna |
| CN106450715A (en) * | 2016-08-23 | 2017-02-22 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna and radiation unit thereof |
| CN106207495B (en) * | 2016-08-23 | 2020-12-04 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna and radiating element thereof |
| CN111430931A (en) * | 2020-04-01 | 2020-07-17 | 武汉虹信通信技术有限责任公司 | Radiation sheet for broadband antenna and broadband antenna |
| CN111430931B (en) * | 2020-04-01 | 2022-01-11 | 武汉虹信科技发展有限责任公司 | Radiation sheet for broadband antenna and broadband antenna |
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| CN105261826B (en) | 2019-01-08 |
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