CN102971910B - Antenna element and antenna - Google Patents
Antenna element and antenna Download PDFInfo
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- CN102971910B CN102971910B CN201280000136.1A CN201280000136A CN102971910B CN 102971910 B CN102971910 B CN 102971910B CN 201280000136 A CN201280000136 A CN 201280000136A CN 102971910 B CN102971910 B CN 102971910B
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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
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
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Abstract
The embodiment of the present invention relates to a kind of antenna element and antenna.Antenna element comprises cross-dipole and four feeder pillars, cross-dipole comprises the conductor part of four groups of radiation arms and a loop configuration, often organize radiation arm and comprise two or more inner radiation arm be connected, the outer end of four groups of radiation arms connects the conductor part of described loop configuration, one section of each feeder pillar connects the inner of one group of radiation arm, the other end connects feeding network, for the current phase of two feeder pillars of two groups of radiation arm feeds of same polarization is contrary.Adopt antenna element provided by the invention and antenna, the polarization purity of antenna element can be improved.
Description
Technical field
The embodiment of the present invention relates to mobile communication technology, particularly relates to a kind of antenna element and antenna.
Background technology
In mobile communication system, base station is transmitted by antenna element.The antenna element of base station generally includes two kinds of forms: the antenna element of dipole-type and the antenna element of patch-type.
At present, the composition structure of the antenna element of dipole-type comprises: reflecting plate and the cross-dipole be arranged on reflecting plate.Wherein, cross-dipole is made up of Ba Lun device and radiation arm.Cross-dipole comprises two pairs of radiation arms, that is, each cross-dipole comprises four groups of radiation arms altogether.Ba Lun device is arranged on reflecting plate front usually, can perpendicular to surface of oscillator, or setting angled with surface of oscillator, and four groups of radiation arms are connected to Ba Lun device upper end, and are horizontally disposed with.Particularly, these four groups of radiation arms centered by the Israel and Palestine wheel apparatus of Ba Lun device upper end respectively to four direction horizontal-extending.
The polarization purity of the antenna element of above-mentioned existing dipole-type is low.
Summary of the invention
The one side of the embodiment of the present invention is to provide a kind of antenna element, to improve the polarization purity of antenna element.
The another aspect of the embodiment of the present invention is to provide a kind of antenna, to improve the polarization purity of antenna element.
The one side of the embodiment of the present invention is to provide a kind of antenna element, comprising: cross-dipole, four feeder pillars and a reflecting plate;
Described cross-dipole comprises: the conductor part of four groups of radiation arms and a loop configuration;
Often organize described radiation arm to comprise: two or more inner radiation arm be connected, the outer end of described four groups of radiation arms connects the conductor part of described loop configuration;
One end of each described feeder pillar connects the inner of radiation arm described in a group, and the other end connects feeding network, for the current phase of two feeder pillars of two groups of radiation arm feeds of same polarization is contrary.
The another aspect of the embodiment of the present invention is to provide a kind of antenna, comprising: reflecting plate and at least one antenna element as above be arranged on described reflecting plate;
Described feeding network is arranged on described reflecting plate.
The another aspect of the embodiment of the present invention is to provide a kind of antenna element, comprising: cross-dipole and Ba Lun device;
Described cross-dipole comprises: the conductor part of four groups of radiation arms and a loop configuration;
Often organize described radiation arm to comprise: two or more inner radiation arm be connected, the outer end of described four groups of radiation arms connects the conductor part of described loop configuration;
Described Ba Lun device comprises four outer conductors and two inner wires, the upper end of each outer conductor connects the inner of one group of radiation arm respectively, the inside of two adjacent outer conductors arranges an inner wire respectively, one end of each inner wire penetrates this outer conductor from the lower end of the outer conductor at place, the other end extends out from the upper end of the outer conductor at place, be connected to the outer conductor at place the upper end of the outer conductor being diagonal positions, or the upper end from the outer conductor with place being the outer conductor of diagonal positions extends to this outer conductor inside, the outer conductor at described inner wire and place forms coaxial line, feed is carried out by this coaxial line.
The another aspect of the embodiment of the present invention is to provide a kind of antenna, comprising: reflecting plate and at least one antenna element as above be arranged on described reflecting plate.
The technique effect of first aspect of the embodiment of the present invention is: the electric current being inputted contrary phase place by two feeder pillars of same polarization to feeding network, adopt the mode of symmetric feeds, and connect four groups of radiation arms by the conductor part of loop configuration, electric current in four groups of radiation arms forms closed-loop path in the conductor part of this loop configuration, thus make electric current distribution equilibrium on radiation arm, the major lobe of directional diagram of this antenna does not depart from, emittance balances, thus improves the polarization purity of antenna element.
The technique effect of another aspect of the embodiment of the present invention is: penetrate this outer conductor by one end of inner wire from the lower end of the outer conductor at place, the other end extends out from the upper end of the outer conductor at place, be connected to the outer conductor at place the upper end of the outer conductor being diagonal positions, or the upper end from the outer conductor with place being the outer conductor of diagonal positions extends to this outer conductor inside, feed is carried out and the outer end of four groups of radiation arms is connected to the conductor part of loop configuration by one end penetrating outer conductor of inner wire, thus emittance is balanced, improve the polarization purity of antenna element.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the antenna element of the embodiment of the present invention one;
Fig. 2 a is the structural representation of the first antenna element of the embodiment of the present invention two;
Fig. 2 b is a kind of inner conductor structure schematic diagram of the first antenna element of the embodiment of the present invention two;
Fig. 2 c is the another kind of inner conductor structure schematic diagram of the first antenna element of the embodiment of the present invention two;
Fig. 2 d is the structural representation of the second antenna element of the embodiment of the present invention two;
Fig. 3 is the principle schematic of the antenna element of the embodiment of the present invention one and embodiment two;
Fig. 4 is the structural representation of the antenna element of the embodiment of the present invention three;
Fig. 5 is the structural representation of the antenna element of the embodiment of the present invention four;
Fig. 6 is the structural representation of the antenna element of the embodiment of the present invention five;
Fig. 7 is the structural representation of the antenna element of the embodiment of the present invention six;
Fig. 8 is the structural representation of the antenna element of the embodiment of the present invention seven;
Fig. 9 is the structural representation of the antenna of the embodiment of the present invention eight;
Figure 10 is the structural representation of the antenna of the embodiment of the present invention nine.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the structural representation of the antenna element of the embodiment of the present invention one.As shown in Figure 1, this antenna element comprises: cross-dipole, four feeder pillars 11.
Particularly, pair of orthogonal dipole comprises: the conductor part 13 of four groups of radiation arms and a loop configuration.Often organize radiation arm and comprise two or more radiation arm 12, radiation arm 12 the inner often organizing radiation arm is connected on same feeder pillar.The outer end of four groups of radiation arms connects the conductor part 13 of loop configuration.One end of each feeder pillar 11 connects the inner of one group of radiation arm, the other end connects feeding network, this feeding network comprises four distributing points altogether, for the current phase of two feeder pillars 11 of two groups of radiation arm feeds of same polarization is contrary, the current and phase difference being two feeder pillars 11 of two groups of radiation arm feeds of same polarization is 180 degree.See Fig. 1, be two feeder pillars 11 diagonally line position relation setting of two groups of radiation arm feeds of same polarization, that is, in the feeder pillar of four shown in Fig. 1 11, the current phase forming two feeder pillars 11 of diagonal positions relation is contrary.
In the embodiment of the present invention one, the current phase inputting feeding network due to two feeder pillars 11 of two groups of radiation arm feeds for same polarization is contrary, namely the mode of symmetric feeds is adopted, and connect four groups of radiation arms by the conductor part 13 of loop configuration, electric current in four groups of radiation arms forms closed-loop path in the conductor part 13 of this loop configuration, thus make electric current distribution equilibrium on radiation arm 12, the major lobe of directional diagram of this antenna does not depart from, emittance balances, thus improve the polarization purity of antenna element, and the Energy Coupling that can reduce between antenna element, improve the isolation of antenna element.
On the basis of technique scheme, particularly, the conductor part 13 of this loop configuration can be the loop configuration of arbitrary form, such as, can be triangle ring, tetracyclic ring, polygon ring, annulus or vesica piscis.See Fig. 1, in the embodiment of the present invention one, circular ring structure is adopted to be explained for the conductor part 13 of loop configuration.
On the basis of technique scheme, particularly, the shape of above-mentioned radiation arm 12 can be straight line or curve.Radiation arm 12 can adopt multiple connected mode with the connection of conductor part 13, such as, be connected with the conductor part 13 of this loop configuration again after the outer end often can organizing the radiation arm 12 of radiation arm is connected, or the outer end also often can organizing radiation arm is connected with the conductor part 13 of this loop configuration respectively.
On the basis of technique scheme, above-mentioned four feeder pillars 11 and cross-dipole adopt one-body molded mode to make, four feeder pillars 11 and cross-dipole are made into an integral device, particularly, the modes such as plating after integrated production method can adopt die casting, plastics injection moulding, employing printed circuit board (PrintedCircuitBoard is called for short PCB) or sheet-metal formed make.
Fig. 2 a is the structural representation of the first antenna element of the embodiment of the present invention two.As shown in Figure 2 a, this antenna element comprises: cross-dipole and Ba Lun device.
Wherein, this cross-dipole comprises: the conductor part 23 of four groups of radiation arms and a loop configuration.
Often organize radiation arm to comprise: two or more inner radiation arm 22 be connected.The outer end of four groups of radiation arms connects the conductor part 23 of loop configuration.
This Ba Lun device can adopt the Ba Lun device in existing antenna element.Particularly, this Ba Lun device comprises: the coaxial line that inner wire and outer conductor are formed.Wherein, this coaxial line is combined by inner wire and outer conductor, and particularly, Ba Lun device comprises: four outer conductors and two inner wires.The upper end of each outer conductor connects the inner of one group of radiation arm respectively.The inside of two adjacent outer conductors arranges an inner wire respectively.One end of each inner wire penetrates this outer conductor from the lower end of the outer conductor at place, and the other end of this inner wire extends out from the upper end of the outer conductor at place.After this end of inner wire extends out from the upper end of the outer conductor at place, the upper end of the outer conductor being diagonal positions can be directly connected to the outer conductor at place.Or the upper end from the outer conductor with place being the outer conductor of diagonal positions extends to this outer conductor inside, that is: this end of inner wire is cut off at this outer conductor inner, and does not pass from the lower end of this outer conductor.The outer conductor at inner wire and place forms coaxial line, when feed, carries out feed by this coaxial line.
See Fig. 2 a, four outer conductors are four columns of the radiation arm connecting cross-dipole, four outer conductors are labeled as outer conductor 211, outer conductor 212, outer conductor 213 and outer conductor 214 respectively, two inner wires are labeled as inner wire 215 and inner wire 216 respectively.Particularly, outer conductor 211 to outer conductor 214 upper end connects the inner of one group of radiation arm respectively.In the inside of adjacent two outer conductors, an inner wire is set respectively.
Such as, inner wire 215 is set in the inside of outer conductor 211, inner wire 216 is set in the inside of outer conductor 212.For inner wire 215, one end of inner wire 215 penetrates outer conductor 211 from the lower end of outer conductor 211, and the other end of inner wire 215 extends out from the upper end of outer conductor 211.See Fig. 2 a, outer conductor 211 and outer conductor 213 are in diagonal positions.After the other end of above-mentioned inner wire 215 extends out from the upper end of outer conductor 211, the upper end with the outer conductor 213 of outer conductor 211 in diagonal positions can be directly connected to.Or, after the other end of above-mentioned inner wire 215 extends out from the upper end of outer conductor 211, extend to outer conductor 213 from the upper end with the outer conductor 213 of outer conductor 211 in diagonal positions inner, and cut off at this outer conductor 213 inner.Inner wire 215 forms coaxial line with the outer conductor 211 at its place, when feed, carries out feed by this coaxial line.Particularly, the port formed by lower end and one end of inner wire 215 of penetrating wherein of outer conductor 211, as the feed port of this coaxial line.
Similarly, for inner wire 216, one end of inner wire 216 penetrates outer conductor 212 from the lower end of outer conductor 212, and the other end of inner wire 216 extends out from the upper end of outer conductor 212.See Fig. 2 a, outer conductor 212 and outer conductor 214 are in diagonal positions.After the other end of above-mentioned inner wire 216 extends out from the upper end of outer conductor 212, the upper end with the outer conductor 214 of outer conductor 212 in diagonal positions can be directly connected to.Or, after the other end of above-mentioned inner wire 216 extends out from the upper end of outer conductor 212, extend to outer conductor 214 from the upper end with the outer conductor 214 of outer conductor 212 in diagonal positions inner, and cut off at this outer conductor 214 inner.Inner wire 216 forms coaxial line with the outer conductor 212 at its place, when feed, carries out feed by this coaxial line.Particularly, the port formed by lower end and one end of inner wire 216 of penetrating wherein of outer conductor 212, as the feed port of this coaxial line.
When above-mentioned inner wire 215 is connected with outer conductor 213, and when inner wire 216 is connected with outer conductor 214, two kinds of connected modes can be adopted.Mode one: one end that inner wire 215 extends out from the upper end of outer conductor 211, is directly connected to the upper end of outer conductor 213; One end that inner wire 216 extends out from the upper end of outer conductor 212, is directly connected to the upper end of outer conductor 214.Mode two, one end that inner wire 215 extends out from the upper end of outer conductor 211, extends to outer conductor 213 inner from the upper end of outer conductor 213; One end that inner wire 216 extends out from the upper end of outer conductor 212, extends to outer conductor 214 inner from the upper end of outer conductor 214.Above two kinds of connected modes corresponding a kind of inner conductor structure respectively, is introduced two kinds of inner conductor structures of the first antenna element of the embodiment of the present invention two respectively below by way of Fig. 2 b and Fig. 2 c.
Fig. 2 b is a kind of inner conductor structure schematic diagram of the first antenna element of the embodiment of the present invention two.See Fig. 2 a and Fig. 2 b, after this inner wire extends out from the upper end of the outer conductor at self place, be directly connected to the upper end with the outer conductor at place diagonally another outer conductor of line position.Particularly, the connected mode of welding can be adopted.Such as, directly inner wire 215 is welded to the upper end of outer conductor 213 from one end that the upper end of outer conductor 211 extends out.Because the coaxial line formed by outer conductor 211 and inner wire 215 carries out feed, the one group of radiation arm be connected with outer conductor 211 realizes delivery of electrical energy by this coaxial line; Because inner wire 211 is directly connected on outer conductor 213, one group of radiation arm that outer conductor 213 and outer conductor 213 connect directly realizes delivery of electrical energy by this inner wire 211.
Fig. 2 c is the another kind of inner conductor structure schematic diagram of the first antenna element of the embodiment of the present invention two.See Fig. 2 a and Fig. 2 c, after this inner wire extends out from the upper end of the outer conductor at self place, extend to this outer conductor from the upper end of diagonally another outer conductor of line position of the outer conductor with place inner.Such as, one end that inner wire 215 extends out from the upper end of outer conductor 211, extends to the inside of outer conductor 213 from the upper end of outer conductor 213, and cuts off at outer conductor 213 inner, and does not pass from the lower end of outer conductor 213.Because the coaxial line formed by outer conductor 211 and inner wire 215 carries out feed, the one group of radiation arm be connected with outer conductor 211 realizes delivery of electrical energy by this coaxial line; Because inner wire 211 extends to the inside of outer conductor 213, outer conductor 213 is coupled with inner wire 211, and one group of radiation arm that outer conductor 213 and outer conductor 213 connect realizes delivery of electrical energy with the coupling of crossing between outer conductor 213 and inner wire 211.
In the embodiment of the present invention two, due to two groups of radiation arm feeds that the coaxial line adopting internal and external conductor to be formed is diagonally line position, therefore the mode of symmetric feeds is adopted, and connect four groups of radiation arms by the conductor part 23 of loop configuration, electric current in four groups of radiation arms forms closed-loop path in the conductor part 23 of this loop configuration, thus make electric current distribution equilibrium on radiation arm 22, the major lobe of directional diagram of this antenna does not depart from, emittance balances, thus improve the polarization purity of antenna element, and the Energy Coupling that can reduce between antenna element, improve the isolation of antenna element.
On the basis of technique scheme, particularly, the conductor part 23 of this loop configuration can be the loop configuration of arbitrary form, such as, can be triangle ring, tetracyclic ring, polygon ring, annulus or vesica piscis.See Fig. 2 a, in the embodiment of the present invention two, circular ring structure is adopted to be explained for the conductor part 23 of loop configuration.
On the basis of technique scheme, particularly, the shape of above-mentioned radiation arm 22 can be straight line or curve.Radiation arm 22 can adopt multiple connected mode with the connection of conductor part 23, such as, be connected with the conductor part 23 of this loop configuration again after the outer end often can organizing the radiation arm 22 of radiation arm is connected, or the outer end also often can organizing radiation arm is connected with the conductor part 23 of this loop configuration respectively.
On the basis of technique scheme, particularly, outer conductor is directly electrically connected with the inner of two groups of radiation arms in four groups of radiation arms, is directly these two groups of radiation arm feeds.Inner wire can be connected with the other two groups of radiation arm electric capacity in four groups of radiation arms, and for these two groups of radiation arms carry out couple feed, or inner wire also directly can be electrically connected with the other two groups of radiation arms in four groups of radiation arms, is directly these two groups of radiation arm feeds.
Fig. 2 d is the structural representation of the second antenna element of the embodiment of the present invention two.As shown in Figure 2 d, on the basis being included in the parts shown in above-mentioned Fig. 2 a, further, can also comprise in this antenna element: draw phase device 24.This draws the top that phase device 24 is arranged on above-mentioned cross-dipole, to be separated by a default space length with cross-dipole.Particularly, can be filled by dielectric in this space be separated by, form insulating barrier, connect above-mentioned cross-dipole with this insulating barrier and draw phase device; Or, the support column that insulating material makes is set above cross-dipole, connects above-mentioned cross-dipole with this support column and draw phase device.Drawing phase device by increasing, guaranteeing that the current phase of two groups of radiation arm input Ba Lun devices of same polarization is contrary further, thus improving polarization purity and the isolation of antenna element further.
Fig. 3 is the principle schematic of the antenna element of the embodiment of the present invention one and embodiment two.Below by way of Fig. 3, the principle of the antenna element of the invention described above embodiment one and the embodiment of the present invention two is described in more detail.As shown in Figure 3, the cross-dipole that four distributing points are antenna element provides feed.Shown in Fig. 3 four distributing point is the tie point of four feeder pillars and four groups of radiation arms in embodiment one; In embodiment two be inner wire in coaxial line and outer conductor respectively with the tie point of four groups of radiation arms.In the embodiment of the present invention one and embodiment two, only formed four summits of rectangle for four distributing points.Wherein, two groups of radiation arms that two distributing points being arranged in diagonal two ends are respectively cross-dipole polarised direction identical provide feed.In figure 3, the distributing point being wherein positioned at diagonal two ends for a pair is labeled as distributing point a1 and distributing point a2.The current and phase difference of the feed that distributing point a1 and distributing point a2 provides is 180 degree.Another is also 180 degree to the current and phase difference of the feed that the distributing point being positioned at diagonal two ends provides.Adopt the four-point feed mode of symmetric feeds, make electric current distribution equilibrium on four groups of radiation arms, thus the Energy distribution in the directional diagram of this antenna element radiation is balanced, the main lobe of this directional diagram can not depart from, therefore deflection (Squint) index improving antenna element is conducive to, improve the polarization purity of antenna element, obtain good cross polarization discrimination.
The CURRENT DISTRIBUTION in a certain moment of the feed of the four groups of radiation arms forming dipole has been shown in Fig. 3 in antenna element.Particularly, for distributing point a1 and a2, distributing point a1 and distributing point a2 are two groups of radiation arm feeds that in dipole, polarised direction is identical.The current and phase difference of the feed that distributing point a1 and distributing point a2 provides is 180 degree.The outside of four groups of radiation arms is connected by the conductor part of loop configuration, and the conductor part of this loop configuration provides current path for the feed in radiation arm.See Fig. 3, in the position of distributing point a1, distributing point a2 and radiation arm outer rim, current strength is the strongest.In the position between two groups of radiation arms of the conductor part of loop configuration, current strength is the most weak.At distributing point a1, electric current flows along the horizontal direction in Fig. 3 and vertical direction to the direction outside radiation arm, and after above-mentioned both direction synthesis, in the direction of distributing point a1, the vertical direction pointed in Fig. 3 offsets the angle of 45 degree left to electric current.At distributing point a2, electric current flows along the horizontal direction in Fig. 3 and vertical direction to the direction inside radiation arm, and after above-mentioned both direction synthesis, in the direction of distributing point a2, the vertical direction also pointed in Fig. 3 offsets the angle of 45 degree left to electric current.In the position between two groups of radiation arms of the conductor part of loop configuration, electric current flows along the conductor part of this loop configuration, and the sense of current vertical direction also pointed in Fig. 3 offsets the angle of 45 degree left.In the terminal of radiation arm, anti-phase, the current phase for High-frequency and low-frequency can change in the position of the terminal of radiation arm.After four groups of radiation arms are connected by the conductor part of loop configuration, the structure of the single unit system that the conductor part of radiation arm and loop configuration forms is symmetrical, and the CURRENT DISTRIBUTION in this single unit system is also symmetrical, therefore, it is possible to improve polarization purity and the cross polarization discrimination of antenna element.And, because the outside of radiation arm is connected by the conductor part of loop configuration, the conductor part of this loop configuration is that the feed in radiation arm provides a new current path, therefore, it is possible to increase the bandwidth of antenna element, and keeps current balance type in whole frequency band range.Further, because the outside of radiation arm is connected by the conductor part of loop configuration, define new closed path path, therefore, it is possible to effectively reduce the Energy Coupling between antenna element, thus the isolation of antenna element can be improved.
Fig. 4 is the structural representation of the antenna element of the embodiment of the present invention three.Fig. 5 is the structural representation of the antenna element of the embodiment of the present invention four.The conductor part of the loop configuration shown in Fig. 4 and Fig. 5 can be applied in the antenna element of the embodiment of the present invention one or the antenna element of the embodiment of the present invention two.See Fig. 4 and Fig. 5, in the antenna element of the embodiment of the present invention one or embodiment two, the conductor part of loop configuration can be various shape.Such as, this conductor part is tetracyclic ring in the diagram; This conductor part is polygon ring in Figure 5; In Fig. 1, Fig. 2 a and Fig. 2 d, this conductor part is annulus.
Fig. 6 is the structural representation of the antenna element of the embodiment of the present invention five.Fig. 7 is the structural representation of the antenna element of the embodiment of the present invention six.Fig. 8 is the structural representation of the antenna element of the embodiment of the present invention seven.Radiation arm shown in Fig. 6, Fig. 7 and Fig. 8 can be applied in the antenna element of the embodiment of the present invention one or the antenna element of the embodiment of the present invention two.See Fig. 6, Fig. 7 and Fig. 8, in the antenna element of the embodiment of the present invention one or embodiment two, radiation arm can adopt various shape, and radiation arm and conductor part can adopt various ways to be connected.Such as, in figure 6, the shape of radiation arm is curve, and the outer end often organizing radiation arm is connected with the conductor part of loop configuration respectively; In figures 7 and 8, the shape of radiation arm is the different curve of curved shape, and the outer end often organizing radiation arm is connected with the conductor part of loop configuration after being connected again; In Fig. 1, Fig. 2 a and Fig. 2 d, the shape of radiation arm is straight line, and the outer end often organizing radiation arm is connected with the conductor part of loop configuration respectively.
Fig. 9 is the structural representation of the antenna of the embodiment of the present invention eight.As shown in Figure 9, this antenna comprises: the antenna element of reflecting plate 10 and at least one embodiment of the present invention one, above-mentioned antenna element is arranged on this reflecting plate 10.
On the basis of technique scheme, feeding network is arranged on reflecting plate 10.Particularly, the radiation arm 12 in antenna element can be parallel with reflecting plate 10.Or the radiation arm 12 in antenna element can be arranged in predetermined angle with reflecting plate 10.Such as, when reflecting plate 10 is horizontally disposed with, above-mentioned radiation arm 12 can be set to outwards extend in the horizontal direction from the inner, also can be set to the certain angle extension that is outwards inclined upwardly in the horizontal direction from the inner, the outwards downward-sloping certain angle extension in the horizontal direction from the inner can also be set to.
Figure 10 is the structural representation of the antenna of the embodiment of the present invention nine.As shown in Figure 10, this antenna comprises: the antenna element of reflecting plate 20 and at least one embodiment of the present invention two, above-mentioned antenna element is arranged on this reflecting plate 20.Concrete, this antenna element can adopt the first antenna element of the embodiment of the present invention two, also can adopt the second antenna element of the embodiment of the present invention two, in Fig. 10 only for the first antenna element.
On the basis of technique scheme, particularly, the radiation arm 22 in antenna element can be parallel with reflecting plate 20.Or the radiation arm 22 in antenna element can be arranged in predetermined angle with reflecting plate 20.Such as, when reflecting plate 20 is horizontally disposed with, above-mentioned radiation arm 22 can be set to outwards extend in the horizontal direction from the inner, also can be set to the certain angle extension that is outwards inclined upwardly in the horizontal direction from the inner, the outwards downward-sloping certain angle extension in the horizontal direction from the inner can also be set to.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. an antenna element, is characterized in that, comprising: cross-dipole and four feeder pillars;
Described cross-dipole comprises: the conductor part of four groups of radiation arms and a loop configuration;
Often organize described radiation arm to comprise: two or more inner radiation arm be connected, the outer end of described four groups of radiation arms connects the conductor part of described loop configuration;
One end of each described feeder pillar connects the inner of radiation arm described in a group, and the other end connects feeding network, for the current phase of two feeder pillars of two groups of radiation arm feeds of same polarization is contrary.
2. antenna element according to claim 1, is characterized in that,
The conductor part of described loop configuration is triangle ring, tetracyclic ring, polygon ring, annulus or vesica piscis.
3. antenna element according to claim 1, is characterized in that, described radiation arm is straight line or curve.
4. antenna element as claimed in any of claims 1 to 3, is characterized in that,
Be connected with the conductor part of described loop configuration after the outer end often organizing the radiation arm of described radiation arm is connected;
Or the outer end of each described radiation arm is connected with the conductor part of described loop configuration respectively.
5. antenna element as claimed in any of claims 1 to 3, is characterized in that,
Described four feeder pillars and described cross-dipole adopt one-body molded mode to make.
6. antenna element according to claim 4, is characterized in that, described four feeder pillars and described cross-dipole adopt one-body molded mode to make.
7. an antenna, is characterized in that, comprising: reflecting plate and be arranged at least one on described reflecting plate as the antenna element in claim 1 to 6 as described in any one.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/070701 WO2012092889A2 (en) | 2012-01-21 | 2012-01-21 | Antenna unit and antenna |
Publications (2)
| Publication Number | Publication Date |
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| CN102971910A CN102971910A (en) | 2013-03-13 |
| CN102971910B true CN102971910B (en) | 2015-12-23 |
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| CN201280000136.1A Active CN102971910B (en) | 2012-01-21 | 2012-01-21 | Antenna element and antenna |
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| CN (1) | CN102971910B (en) |
| WO (1) | WO2012092889A2 (en) |
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| CN102882004B (en) | 2012-06-29 | 2016-08-03 | 华为技术有限公司 | A kind of electromagnetic dipole antenna |
| US9966664B2 (en) | 2012-11-05 | 2018-05-08 | Alcatel-Lucent Shanghai Bell Co., Ltd. | Low band and high band dipole designs for triple band antenna systems and related methods |
| CN103872435B (en) * | 2014-03-26 | 2016-05-25 | 广州泽歌通信科技有限公司 | A kind of broadband radiation unit and antenna for base station |
| CN104577323A (en) * | 2015-02-06 | 2015-04-29 | 西安电子科技大学 | Dual-frequency and dual-polarization antenna used for mobile communication base station |
| US9761935B2 (en) * | 2015-09-02 | 2017-09-12 | Antennas Direct, Inc. | HDTV antenna assemblies |
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Also Published As
| Publication number | Publication date |
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| CN102971910A (en) | 2013-03-13 |
| WO2012092889A3 (en) | 2012-12-13 |
| WO2012092889A2 (en) | 2012-07-12 |
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