CN105206946A - Indoor dual-polarization omnibearing ceiling antenna - Google Patents
Indoor dual-polarization omnibearing ceiling antenna Download PDFInfo
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Abstract
The invention provides an indoor dual-polarization omnibearing ceiling antenna which comprises a perpendicular polarization antenna body and a horizontal polarization antenna body arranged above the perpendicular polarization antenna body. The horizontal polarization antenna body comprises a dielectric slab, two axisymmetric annular arrays located on the top face and the bottom face of the dielectric slab, and a first cable. The annular arrays comprise low-frequency radiation unit sets and high-frequency radiation unit sets located on the inner sides of the low-frequency radiation unit sets. Each low-frequency radiation unit in each low-frequency radiation unit set is connected with a high-frequency radiation unit at the corresponding position in the corresponding high-frequency radiation unit set through a circuit, so that a plurality of subarrays are formed, and the subarrays on the same side of the dielectric slab are connected in parallel. The subarrays on the top face of the dielectric slab are connected in parallel and then connected with an inner conductor of the first cable, and the subarrays on the bottom face of the dielectric slab are connected in parallel and then connected with an outer conductor of the first cable. According to the indoor dual-polarization omnibearing ceiling antenna, a uniform current loop is simulated, so that omnibearing radiation is achieved, and thus working frequency of the perpendicular polarization antenna body coincides with that of the horizontal polarization antenna body.
Description
Technical field
The present invention relates to mobile communication technology field, refer to a kind of indoor bipolar omni-directional ceiling antenna especially.
Background technology
MIMO (the MultipleInputMultipleOutput of mobile communication indoor distribution system, multiple-input and multiple-output) technology can make full use of space resources, MIMO is realized by multiple antenna, when not increasing frequency spectrum resource and antenna transmission power, system channel capacity can be increased exponentially, obviously improve the core technology that communication quality is regarded as next generation mobile communication.
Indoor distributed system antenna is as mobile communication indoor distribution system important component part, and the quality of its performance directly affects the quality of indoor distributed system communication quality.Common indoor distributed system antenna can be divided into logarithm periodic antenna and the Yagi antenna of the directed wall aerial of single polarization all-around top absorbing antenna, single polarization, bipolar omni-directional ceiling antenna, dual polarization orientation wall aerial and different gains according to different application scenarios and purposes.
The monopole antenna that single polarization ceiling mount antenna adopts vertical to place usually is as radiant body, and principal mode has single cone, single cone adds spherical crown, bipyramid and bipyramid and adds spherical crown; Dual-polarization ceiling antenna then needs the radiating element increasing horizontal polarization on the basis of single polarization ceiling mount antenna, and common horizontally polarized omnidirectional antenna has doublet antenna, cylinder slot antenna, cylinder microstrip antenna array and A Er Ford Alford loop aerial etc.
In indoor environment, electromagnetic wave is often changed in polarization of electromagnetic wave after multipath reflection or scattering and causes many-sided decline.Utilize dual polarized antenna to be can effectively improve because the defect of the communication quality difference of decline initiation, and also can reduce the error rate of information transmission, so in indoor distribution omnidirectional antenna system, dual-polarization omnidirectional antenna more and more comes into one's own.
The application scheme many employing dual polarization compartment antenna of current solution MIMO in indoor distributed system, its structural representation as shown in Figure 1, comprises folded dipole 16, lamina affixad 17, perpendicular polarization oscillator 18 and floor 21.Realize dual-polarized working method by folded dipole and perpendicular polarization element combination, but this dual polarization compartment antenna there is following shortcoming:
1, perpendicular polarization and horizontal polarization cell operation frequency inconsistent.Perpendicular polarization unit covers 880-969MHz and 1710-2700MHz frequency, and horizontal polarization unit only covers 1710-2700MHz frequency.
2, because perpendicular polarization unit is different with horizontal polarization cellular construction, as shown in Figure 2, the coverage of horizontal polarization directions 25, vertical polarization directions 22 inconsistent, the edge therefore in community cannot embody MIMO effect.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of indoor bipolar omni-directional ceiling antenna, realizes vertical polarized antenna consistent with horizontally-polarized antenna operating frequency, and two polarised direction coverages is consistent.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
There is provided a kind of indoor bipolar omni-directional ceiling antenna, described antenna comprises vertical polarized antenna and horizontally-polarized antenna, and described horizontally-polarized antenna is positioned at the top of described vertical polarized antenna;
Described horizontally-polarized antenna comprises dielectric-slab, be positioned at described dielectric-slab end face becomes axisymmetric two circle ring arrays and the first cable with bottom surface; Described circle ring array comprises low frequency radiating element group and is positioned at the high frequency radiating element group inside described low frequency radiating element group; In described low frequency radiating element group, each low frequency radiating element is connected with a high frequency radiating element circuit of the corresponding position in described high frequency radiating element group, forms multiple subarray, and the described subarray of described dielectric-slab homonymy is in parallel; The described subarray parallel connection of described dielectric-slab end face connects the inner wire of described first cable afterwards, and the multiple described subarray parallel connection of described dielectric-slab bottom surface connects the outer conductor of described first cable afterwards.
Preferably, described dielectric-slab is the dielectric-slab of round sheet, and the multiple described subarray of described dielectric-slab homonymy is connected in parallel to the home position of described circular dielectric-slab.
Preferably, described horizontally-polarized antenna also comprises several parasitic metal sheets, outside the circle ring array that several parasitic metal sheets described are positioned at described dielectric-slab end face at equal intervals circumferentially.
Preferably, described low frequency radiating element group comprises 3-6 low frequency radiating element, and is arranged in circular at equal intervals; Described high frequency radiating element group comprises 3-6 high frequency radiating element, and is arranged in circular at equal intervals.
Preferably, described low frequency radiating element is circular arc or rectangle; Described high frequency radiating element is circular arc or rectangle.
Preferably, described low frequency radiating element is provided with several the first gaps, the shape in described first gap is ring-type or linearity;
Described high frequency radiating element is provided with several the second gaps, the shape in described second gap is ring-type or linearity.
Preferably, described indoor bipolar omni-directional ceiling antenna also comprises the first sheet metal, the second sheet metal, the 3rd sheet metal, the 4th sheet metal, the 5th sheet metal and the 6th sheet metal;
For each high frequency radiating element of end face being positioned at described dielectric-slab, described high frequency radiating element is connected by described 3rd sheet metal with the described low frequency radiating element of the homonymy of corresponding position, described high frequency radiating element connects the inner wire of described first cable by described first sheet metal, and described high frequency radiating element connects described first sheet metal by described second sheet metal;
For each high frequency radiating element of bottom surface being positioned at described dielectric-slab, described high frequency radiating element is connected by described 5th sheet metal with the described low frequency radiating element of the homonymy of corresponding position, described high frequency radiating element connects the outer conductor of described first cable by described 6th sheet metal, and described high frequency radiating element connects described 6th sheet metal by described 4th sheet metal.
Preferably, described vertical polarized antenna comprise be provided with the first through hole perpendicular polarization metallic plate, be provided with the second through hole and be fixed on supporting seat on described perpendicular polarization metallic plate, be vertically arranged on taper oscillator on described supporting base and the second cable; Wherein, the center of circle of described first through hole and the second through hole is on a vertical curve, and the outer conductor of described second cable is connected with the bottom of described first through hole, and the inner wire of described second cable is connected with described taper oscillator with the second through hole by described first through hole.
Preferably, described perpendicular polarization metallic plate is circular metal plate, and described first through hole is positioned at the center of circle of described circular metal plate.
Preferably, described taper oscillator comprises cylinder part and circular cone body, described cylinder part and described circular cone body one-body molded, and described cylinder part is positioned on described circular cone body.
Preferably, described supporting seat is metallic support seat, and the top of described supporting seat be provided with described circular cone body most advanced and sophisticated be suitable for mutually to conical socket, with taper oscillator described in fixed support.
Preferably, the outer conductor ground connection of described first cable.
Preferably, described vertical polarized antenna also comprises several adjustment sheets, and described perpendicular polarization metallic plate is fixed in one end of described adjustment sheet, and the other end is fixed on described taper oscillator.
Preferably, described indoor bipolar omni-directional ceiling antenna also comprises base plate and radome, and described vertical polarized antenna and horizontally-polarized antenna are positioned at the cavity that described base plate and radome are formed.
Embodiments of the invention have following beneficial effect:
In such scheme, the circle ring array formed by the low frequency radiating element that will be horizontally set on dielectric-slab and high frequency radiating element is in parallel, simulation uniform current ring, thus achieve omnidirectional radiation, standing wave is mated again by two-wire (" two-wire " is the cross double structure that 4 first and third sheet metals are formed), structure is simply light and handy, makes vertical polarized antenna consistent with horizontally-polarized antenna operating frequency.Such scheme achieves polarization diversity, thus achieves the good covering of signal, makes the consistent of two polarised direction coverages, and horizontally-polarized antenna and vertical polarized antenna can simultaneously can the frequency ranges such as compatible 2G, 3G and TD-LTE.The Dual-polarization ceiling antenna of such scheme achieves MIMO in a secondary physical antenna simultaneously, has effectively resisted multipath reflection or the diffraction of indoor distributed system existence, has reduced the error rate of information transmission, greatly improve the availability of frequency spectrum, realized website and share.When not increasing frequency spectrum resource, improving the ability of transmission data as wide as possible, saving engineering resource and saving indoor distributed system cost of layout.
In addition, such scheme, by arranging adjustment sheet at perpendicular polarization metallic plate end face, has both solved the function of vertical polarized antenna DC earthing, in turn ensure that the characteristic of the low standing-wave ratio of vertical polarized antenna.
In addition, such scheme, by increasing annular parasitic metal sheet on the dielectric-slab of horizontal positioned, is more conducive to the resonance of horizontal dipole, improves standing-wave ratio.
Accompanying drawing explanation
Fig. 1 is Dual-polarization ceiling antenna structural representation in prior art;
Fig. 2 is the polarization effect schematic diagram of Dual-polarization ceiling antenna in prior art;
Fig. 3 A, 3B are the structural representation of indoor bipolar omni-directional ceiling antenna of the present invention;
Fig. 4 is the vertical view of indoor bipolar omni-directional ceiling antenna of the present invention;
Fig. 5 is the structural representation of the taper oscillator of the vertical polarized antenna of indoor bipolar omni-directional ceiling antenna of the present invention;
Fig. 6 is the structural representation of the perpendicular polarization metallic plate of indoor bipolar omni-directional ceiling antenna of the present invention;
Fig. 7 is the structural representation of the adjustment sheet of indoor bipolar omni-directional ceiling antenna of the present invention;
Fig. 8 is the vertical midship section schematic diagram of the supporting seat of indoor bipolar omni-directional ceiling antenna of the present invention;
Fig. 9 is the dielectric-slab end face schematic diagram of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 10 is the dielectric-slab schematic bottom view of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 11 is the elevation radiation patytern of the horizontal polarization full frequency band (i.e. 806MHz-960MHz, 1710MHz-2700MHz) of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 12 is the schematic diagram of the deviation in roundness of the horizontal polarization low-frequency range (i.e. 806MHz-960MHz) of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 13 is the schematic diagram of the deviation in roundness of the horizontal polarization high band (i.e. 1710MHz-2700MHz) of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 14 A, 14B are horizontal polarization full frequency band (that is, 806MHz-960MHz, 1710MHz-2700MHz) the voltage standing wave ratio schematic diagram of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 15 is the elevation radiation patytern of the perpendicular polarization full frequency band (i.e. 806MHz-960MHz, 1710MHz-2700MHz) of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 16 is the schematic diagram of the deviation in roundness of the perpendicular polarization low-frequency range (i.e. 806MHz-960MHz) of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 17 is the schematic diagram of the deviation in roundness of the perpendicular polarization high band (i.e. 1710MHz-2700MHz) of indoor bipolar omni-directional ceiling antenna of the present invention;
Figure 18 is perpendicular polarization full frequency band (i.e. 806MHz-960MHz, 1710MHz-2700MHz) the voltage standing wave ratio schematic diagram of indoor bipolar omni-directional ceiling antenna of the present invention.
Embodiment
For embodiments of the invention will be solved technical problem, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention are consistent with horizontally-polarized antenna operating frequency for vertical polarized antenna in prior art, and the consistent problem of two polarised direction coverages, a kind of indoor bipolar omni-directional ceiling antenna is provided, as shown in Fig. 3 A, 3B, 4,10, described antenna comprises vertical polarized antenna and horizontally-polarized antenna, and described horizontally-polarized antenna is placed horizontally at the top of described vertical polarized antenna, and does not contact with each other; Described horizontally-polarized antenna comprises dielectric-slab 6, be positioned at described dielectric-slab end face becomes axisymmetric two circle ring arrays and the first cable with bottom surface; Described circle ring array comprises low frequency radiating element group and is positioned at the high frequency radiating element group inside described low frequency radiating element group.For the circle ring array at dielectric-slab top, in its low frequency radiating element group, each low frequency radiating element 5 is connected with high frequency radiating element 13 circuit of the corresponding position in high frequency radiating element group, form multiple subarray, all subarrays at dielectric-slab top are in parallel.For the circle ring array bottom dielectric-slab, in its low frequency radiating element group, each low frequency radiating element 15 is connected with high frequency radiating element 23 circuit of the corresponding position in high frequency radiating element group, form multiple subarray, all subarrays bottom dielectric-slab are in parallel.The described subarray parallel connection of dielectric-slab end face connects the inner wire of described first cable afterwards, and the multiple described subarray parallel connection of described dielectric-slab bottom surface connects the outer conductor of described first cable afterwards.Preferably, above-mentioned first cable is coaxial cable, for providing signal for horizontally-polarized antenna.
Said method achieves horizontal polarization, perpendicular polarization can be operated in 2G, 3G and LTE frequency range simultaneously, significantly improves indoor coverage of signal, realizes website and shares, improve the availability of frequency spectrum, saves engineering resource and saves indoor distributed system cost of layout.
Further, described dielectric-slab 6 is the dielectric-slab of round sheet, and the multiple described subarray of described dielectric-slab homonymy is connected in parallel to the home position of described circular dielectric-slab 6.
Further, described horizontally-polarized antenna also comprises several parasitic metal sheets 7, outside the circle ring array that several parasitic metal sheets 7 described are positioned at described dielectric-slab end face at equal intervals circumferentially, as shown in Figure 3 B.
Further, described low frequency radiating element group comprises 3-6 low frequency radiating element, and is arranged in circular at equal intervals; Described high frequency radiating element group comprises 3-6 high frequency radiating element, and is arranged in circular at equal intervals.
Further, described low frequency radiating element is circular arc or rectangle; Described high frequency radiating element is circular arc, rectangle or other shapes.
Further, described low frequency radiating element is provided with several the first gaps, the shape in described first gap is ring-type, linearity or other shapes;
Described high frequency radiating element is provided with several the second gaps, the shape in described second gap is ring-type, linearity or other shapes.
Further, described indoor bipolar omni-directional ceiling antenna also comprises the first sheet metal, the second sheet metal, the 3rd sheet metal, the 4th sheet metal, the 5th sheet metal and the 6th sheet metal; For each high frequency radiating element of end face being positioned at described dielectric-slab, described high frequency radiating element is connected by described 3rd sheet metal with the described low frequency radiating element of the homonymy of corresponding position, described high frequency radiating element connects the inner wire of described first cable by described first sheet metal, and described high frequency radiating element connects described first sheet metal by described second sheet metal; For each high frequency radiating element of bottom surface being positioned at described dielectric-slab, described high frequency radiating element is connected by described 5th sheet metal with the described low frequency radiating element of the homonymy of corresponding position, described high frequency radiating element connects the outer conductor of described first cable by described 6th sheet metal, and described high frequency radiating element connects described 6th sheet metal by described 4th sheet metal.
Further, described horizontally-polarized antenna is square array or triangular array.
Further, as shown in Fig. 3 B, 5,6,8, described vertical polarized antenna comprise be provided with the first through hole 40 perpendicular polarization metallic plate 4, be provided with the second through hole 30 and be fixed on supporting seat 3 on described perpendicular polarization metallic plate, be vertically arranged on taper oscillator 1 on described supporting seat 3 and the second cable; Wherein, the center of circle of described first through hole and the second through hole is on a vertical curve, the outer conductor of described second cable is connected with the bottom of described first through hole, the inner wire of described second cable is connected with described taper oscillator 1 with the second through hole through described first through hole, and described second cable inner conductor and the connection side of described taper oscillator can adopt and to weld or the mode of fastening nuts realizes.Above-mentioned second cable is coaxial cable, for providing signal for vertical polarized antenna.
Further, described perpendicular polarization metallic plate is circular metal plate, and described first through hole is positioned at the center of circle of described circular metal plate.
Further, described taper oscillator comprises cylinder part 11 and circular cone body 12, and described cylinder part 1 is one-body molded with described circular cone body 12, and described cylinder part 11 is positioned on described circular cone body.
Further, described supporting seat 3 is metallic support seat, its height and diameter all can regulate according to the needs of Antenna Impedance Matching, and the top of described supporting seat 3 be provided be suitable for mutually with described circular cone body 12 tip to conical socket 31, with taper oscillator 1 described in fixed support, matched installation in the circular cone body tip of described taper oscillator 1.
Further, the outer conductor ground connection of described first cable.
Further, described vertical polarized antenna also comprises 3-6 adjustment sheet 2, and one end of described adjustment sheet tightly locks in described perpendicular polarization metallic plate, and the other end tightly locks on described taper oscillator, and is supported by taper oscillator 1 by each adjustment sheet 2.As shown in Figure 7, adjustment sheet is tortuous, can better its supporting role.
Further, described indoor bipolar omni-directional ceiling antenna also comprises base plate 8 and radome, described vertical polarized antenna and horizontally-polarized antenna are positioned at the cavity that described base plate and radome are formed, and namely base plate and radome are assembled mutually and established described vertical polarized antenna and horizontally-polarized antenna with cover.Preferably, described base plate is plastic bottom board.
Below by another embodiment, horizontally-polarized antenna seat is illustrated further, as shown in Fig. 9,10:
Described horizontally-polarized antenna specifically comprises dielectric-slab 6, the first sub-annular array that low frequency dipoles one arm (i.e. the above-mentioned low frequency radiating element 5 being positioned at dielectric-slab end face) being laid in dielectric-slab 6 end face forms, the second sub-annular array that low frequency dipoles another arm (i.e. the above-mentioned low frequency radiating element 15 that be positioned at dielectric-slab bottom surface) in axially symmetric shape with top forms, the 3rd sub-circle ring array that frequency dipoles one arm (i.e. the above-mentioned high frequency radiating element 13 being positioned at dielectric-slab end face) being laid in dielectric-slab 6 top forms, the 4th circle ring array that another arm of frequency dipoles (i.e. the above-mentioned high frequency radiating element 23 being positioned at dielectric-slab bottom surface) being laid in dielectric-slab 6 bottom surface forms, be laid in dielectric-slab 6 top for connecting the foil 14 (i.e. the 3rd sheet metal) of high frequency oscillator one arm and corresponding position low-frequency vibrator one arm, be laid in dielectric-slab 6 bottom for connecting the foil 24 (i.e. the 5th sheet metal) of another arm of high frequency oscillator and another arm of low-frequency vibrator, be laid in dielectric-slab 6 end face for connecting the circular foil 10 (i.e. the first sheet metal) of the first coaxial cable (not shown) inner wire and high frequency oscillator one arm, be laid in dielectric-slab 6 bottom surface for connecting the circular foil 20 (i.e. the 6th sheet metal) of the first coaxial cable (not shown) outer conductor and another arm of high frequency oscillator, be laid in dielectric-slab 6 end face for connecting the foil 9 (i.e. the second sheet metal) of high frequency oscillator one arm and circular foil 10 (i.e. the first sheet metal), be laid in dielectric-slab 6 bottom surface for connecting the foil 19 (i.e. the 4th sheet metal) of another arm of high frequency oscillator and circular foil 20 (i.e. the 6th sheet metal) and being laid in the annular parasitic metal sheet 7 of dielectric-slab 6 end face.Wherein the first sub-annular array and the 3rd subring shape array form the annular array being positioned at dielectric-slab end face, and wherein the second sub-annular array and the 4th subring shape array form the annular array being positioned at dielectric-slab bottom surface.
The dielectric-slab 6 of described horizontally-polarized antenna is a kind of single-layer double-side dielectric-slab.As Fig. 9, shown in Figure 10, the the first sub-circle ring array be made up of 4-6 low frequency dipoles one arm, the 3rd sub-circle ring array be made up of 4-6 frequency dipoles one arm, the the second sub-circle ring array be made up of 4-6 another arm of low frequency dipoles, the 4th sub-circle ring array be made up of 4-6 another arm of frequency dipoles, on the end face that dipole arm is distributed in dielectric-slab 6 equidistantly and bottom surface, wherein, bottom surface is connected with the outer conductor of the first coaxial cable (not shown) providing signal to input, end face is connected with the inner wire of the first coaxial cable (not shown) providing signal to input.
Described first coaxial cable and the second coaxial cable are all through described perpendicular polarization metallic plate 4 (not shown), usually, for the first coaxial cable and the second coaxial cable respectively provide feed connector, feed connector is installed in (not shown) on the bottom surface of perpendicular polarization metallic plate 4, because being common in known schemes, therefore do not describe in detail.
As can be seen from Figure 11-Figure 18, the horizontal polarization frequency range of the antenna of above-described embodiment is utilized to be 806MHz-960MHz, 1710MHz-2700MHz, perpendicular polarization frequency range is: 806MHz-960MHz, 1710MHz-2700MHz, namely horizontal polarization frequency range is identical with perpendicular polarization frequency range, and horizontal polarization frequency range and perpendicular polarization frequency range deviation in roundness low, omni-directional is good, and standing-wave ratio is low, has stronger ambient adaptability.
Above-described embodiment improves the availability of frequency spectrum, when not increasing frequency spectrum resource, improve the ability of transmission data as wide as possible, the good covering of signal is achieved by polarization diversity, simultaneously can the frequency range such as compatible 2G, 3G and TD-LTE, in a secondary physical antenna, realize MIMO, opposing multipath reflection or diffraction, reduce the error rate of information transmission.The antenna of above-mentioned enforcement rationally makes full use of to frequency spectrum resource provides condition, not only improves the transmission rate of subscriber signal, also will significantly save the cost of indoor distributed system.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. an indoor bipolar omni-directional ceiling antenna, is characterized in that, described indoor bipolar omni-directional ceiling antenna comprises vertical polarized antenna and horizontally-polarized antenna, and described horizontally-polarized antenna is placed horizontally at the top of described vertical polarized antenna;
Described horizontally-polarized antenna comprises dielectric-slab, be positioned at described dielectric-slab end face becomes axisymmetric two circle ring arrays and the first cable with bottom surface; Described circle ring array comprises low frequency radiating element group and is positioned at the high frequency radiating element group inside described low frequency radiating element group; In described low frequency radiating element group, each low frequency radiating element is connected with a high frequency radiating element circuit of the corresponding position in described high frequency radiating element group, forms multiple subarray, and the described subarray of described dielectric-slab homonymy is in parallel; The described subarray parallel connection of described dielectric-slab end face connects the inner wire of described first cable afterwards, and the multiple described subarray parallel connection of described dielectric-slab bottom surface connects the outer conductor of described first cable afterwards.
2. indoor bipolar omni-directional ceiling antenna according to claim 1, is characterized in that, described dielectric-slab is the dielectric-slab of round sheet, and the multiple described subarray of described dielectric-slab homonymy is connected in parallel to the home position of described circular dielectric-slab.
3. indoor bipolar omni-directional ceiling antenna according to claim 2, it is characterized in that, described horizontally-polarized antenna also comprises several parasitic metal sheets, outside the circle ring array that several parasitic metal sheets described are positioned at described dielectric-slab end face at equal intervals circumferentially.
4. indoor bipolar omni-directional ceiling antenna according to claim 2, is characterized in that, described low frequency radiating element group comprises 3-6 low frequency radiating element, and is arranged in circular at equal intervals; Described high frequency radiating element group comprises 3-6 high frequency radiating element, and is arranged in circular at equal intervals.
5. indoor bipolar omni-directional ceiling antenna according to claim 2, is characterized in that, described low frequency radiating element is circular arc or rectangle; Described high frequency radiating element is circular arc or rectangle.
6. indoor bipolar omni-directional ceiling antenna according to claim 2, is characterized in that, described low frequency radiating element is provided with several the first gaps, and the shape in described first gap is ring-type or linearity;
Described high frequency radiating element is provided with several the second gaps, the shape in described second gap is ring-type or linearity.
7. indoor bipolar omni-directional ceiling antenna according to claim 2, it is characterized in that, described indoor bipolar omni-directional ceiling antenna also comprises the first sheet metal, the second sheet metal, the 3rd sheet metal, the 4th sheet metal, the 5th sheet metal and the 6th sheet metal;
For each high frequency radiating element of end face being positioned at described dielectric-slab, described high frequency radiating element is connected by described 3rd sheet metal with the described low frequency radiating element of the homonymy of corresponding position, described high frequency radiating element connects the inner wire of described first cable by described first sheet metal, and described high frequency radiating element connects described first sheet metal by described second sheet metal;
For each high frequency radiating element of bottom surface being positioned at described dielectric-slab, described high frequency radiating element is connected by described 5th sheet metal with the described low frequency radiating element of the homonymy of corresponding position, described high frequency radiating element connects the outer conductor of described first cable by described 6th sheet metal, and described high frequency radiating element connects described 6th sheet metal by described 4th sheet metal.
8. indoor bipolar omni-directional ceiling antenna according to claim 2, it is characterized in that, described vertical polarized antenna comprise be provided with the first through hole perpendicular polarization metallic plate, be provided with the second through hole and be fixed on supporting seat on described perpendicular polarization metallic plate, be vertically arranged on taper oscillator on described supporting base and the second cable; Wherein, the center of circle of described first through hole and the second through hole is on a vertical curve, and the outer conductor of described second cable is connected with the bottom of described first through hole, and the inner wire of described second cable is connected with described taper oscillator with the second through hole by described first through hole.
9. indoor bipolar omni-directional ceiling antenna according to claim 8, is characterized in that, described perpendicular polarization metallic plate is circular metal plate, and described first through hole is positioned at the center of circle of described circular metal plate.
10. indoor bipolar omni-directional ceiling antenna according to claim 8, it is characterized in that, described taper oscillator comprises cylinder part and circular cone body, described cylinder part and described circular cone body one-body molded, and described cylinder part is positioned on described circular cone body.
11. indoor bipolar omni-directional ceiling antennas according to claim 10, it is characterized in that, described supporting seat is metallic support seat, and the top of described supporting seat be provided with described circular cone body most advanced and sophisticated be suitable for mutually to conical socket, with taper oscillator described in fixed support.
12. indoor bipolar omni-directional ceiling antennas according to claim 10, is characterized in that, the outer conductor ground connection of described first cable.
13. indoor bipolar omni-directional ceiling antennas according to claim 10, it is characterized in that, described vertical polarized antenna also comprises several adjustment sheets, and described perpendicular polarization metallic plate is fixed in one end of described adjustment sheet, and the other end is fixed on described taper oscillator.
14. indoor bipolar omni-directional ceiling antennas according to claim 10, it is characterized in that, described indoor bipolar omni-directional ceiling antenna also comprises base plate and radome, and described vertical polarized antenna and horizontally-polarized antenna are positioned at the cavity that described base plate and radome are formed.
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| CN111092297A (en) * | 2020-01-09 | 2020-05-01 | 上海交通大学 | Low-profile multi-frequency omnidirectional vertical polarization antenna |
| CN113540774A (en) * | 2021-06-07 | 2021-10-22 | 电子科技大学 | Vertical polarization omnidirectional antenna |
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| CN105789913A (en) * | 2016-04-27 | 2016-07-20 | 陈志璋 | Broadband dual-polarized omnidirectional MIMO antenna |
| CN106207417A (en) * | 2016-08-23 | 2016-12-07 | 广东盛路通信科技股份有限公司 | Indoor complete double band dual polarization ceiling mount antennas |
| CN108011194A (en) * | 2016-10-30 | 2018-05-08 | 中国船舶重工集团公司第七二三研究所 | A kind of horizontal polarization broadband bipyramid omnidirectional antenna |
| CN107732467B (en) * | 2017-11-20 | 2020-04-14 | 北京航空航天大学 | Base station combined antenna with coupling suppression for 4G and 5G communication |
| CN107732467A (en) * | 2017-11-20 | 2018-02-23 | 北京航空航天大学 | A kind of base station combination antenna for being used for 4G and being communicated with 5G suppressed with coupling |
| CN108075217A (en) * | 2018-01-19 | 2018-05-25 | 武汉波诺电子科技有限公司 | A kind of new omnidirectional antenna |
| CN108075217B (en) * | 2018-01-19 | 2024-04-09 | 武汉波诺电子科技有限公司 | Novel omnidirectional antenna |
| CN109193131A (en) * | 2018-09-11 | 2019-01-11 | 哈尔滨工业大学 | A kind of printed form broadband low section omnidirectional dual polarized antenna |
| CN109193131B (en) * | 2018-09-11 | 2020-05-12 | 哈尔滨工业大学 | Printing type broadband low-profile omnidirectional dual-polarized antenna |
| CN109273868A (en) * | 2018-09-29 | 2019-01-25 | 普联技术有限公司 | A kind of antenna and antenna equipment |
| CN109273868B (en) * | 2018-09-29 | 2020-10-02 | 普联技术有限公司 | Antenna and antenna equipment |
| CN110265773A (en) * | 2019-07-12 | 2019-09-20 | 上海安费诺永亿通讯电子有限公司 | A kind of double horizontally polarized omnidirectional antennas of double frequency |
| CN111092297A (en) * | 2020-01-09 | 2020-05-01 | 上海交通大学 | Low-profile multi-frequency omnidirectional vertical polarization antenna |
| CN111092297B (en) * | 2020-01-09 | 2021-11-09 | 上海交通大学 | Low-profile multi-frequency omnidirectional vertical polarization antenna |
| WO2021212277A1 (en) * | 2020-04-20 | 2021-10-28 | 深圳市大疆创新科技有限公司 | Dual-frequency dual-polarization antenna |
| CN114256601A (en) * | 2020-09-19 | 2022-03-29 | 华为技术有限公司 | Antenna, antenna module and electronic equipment |
| CN113540774A (en) * | 2021-06-07 | 2021-10-22 | 电子科技大学 | Vertical polarization omnidirectional antenna |
| CN116345137A (en) * | 2023-05-30 | 2023-06-27 | 佛山市粤海信通讯有限公司 | Low-frequency oscillator and low-frequency antenna |
| CN116345137B (en) * | 2023-05-30 | 2023-07-25 | 佛山市粤海信通讯有限公司 | Low-frequency oscillator and low-frequency antenna |
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