CN203895594U - Omni-directional ceiling antenna - Google Patents
Omni-directional ceiling antenna Download PDFInfo
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- CN203895594U CN203895594U CN201420323194.4U CN201420323194U CN203895594U CN 203895594 U CN203895594 U CN 203895594U CN 201420323194 U CN201420323194 U CN 201420323194U CN 203895594 U CN203895594 U CN 203895594U
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- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 4
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides an omni-directional ceiling antenna which comprises a conical-cylindrical radiation oscillator, a conical-cylindrical reflector, a disk-cylindrical base plate and an insulated dielectric ring. The reflector comprises a first hollow cone and a first cylindrical ring, wherein the flaring end of the first hollow cone is connected with the first cylindrical ring, and the external diameter of the first cylindrical ring is greater than that of the flaring end of the first hollow cone; the base plate is provided with a second cylindrical ring, and the second cylindrical ring is sleeved by the first cylindrical ring to form a spatially isolated coupling structure; and the insulated dielectric ring is arranged between the second and first cylindrical rings to realize isolation, support and fixation of the reflector and the base plate. According to the utility model, the problem that high-frequency signals of an ultra-wideband indoor omni-directional antenna are gathered downwardly is solved, the effective coverage scope of the high-frequency-band signals is broadened, distribution of indoor signals is more uniform, the intensity of electromagnetic radiation under the antenna is effectively reduced, and the safety of the indoor electromagnetic environment is ensured.
Description
Technical field
The utility model relates to mobile communication technology, relates in particular to a kind of all-around top absorbing antenna.
Background technology
Mobile communication indoor all-around top absorbing antenna is widely used in indoor distributed system, is the main antenna type covering for indoor radio signal, and its Performance and quality directly affects indoor wireless communication quality and indoor distributed system efficiency of investment.All-around top absorbing antenna generally uses half-wave dipole principle, adopts taper oscillator to add reflection board structure.Taper oscillator can broadening antenna impedance broadband, domestic existing all-around top absorbing antenna is conventionally also by connecting impedance matching line (sheet) between radiating doublet and reflection floor, reduced volume and the bandwidth that further expands frequency low side, voltage standing wave ratio (Voltage Standing Wave Ratio in satisfied 806～960MHz (low-frequency range) and 1710～2500MHz frequency range or more wide frequency ranges; Be called for short: VSWR) be less than 1.5 requirement.But, existing all-around top absorbing antenna product is not all considered directional diagram bandwidth characteristic, in 1710～2500MHz frequency range, the technological deficiencies such as the gathering downwards of ubiquity signal and directional diagram circularity are poor, high, the high radiation angle gain of low radiation angle gain is low, combining wireless signal is with the loss characteristic of frequency and propagation distance decay, causes the strong and coverage of the high frequency band signal such as 3G, 4G electromagnetic radiation under antenna much smaller than 2G low-band signal.In fact, to indoor suction top omnidirectional antenna, 85 ° of high radiation angles (taking vertically downward as 0 °, lower with) general corresponding maximum covering radius edge, 30 ° of low radiation angles with under interior respective antenna nearby very among a small circle.In indoor scene, it is enough strong at covering radius margin signal that signal covers hope, strengthens coverage effect; A little less than wishing under antenna that signal as far as possible, reduce electromagnetic radiation.Therefore, indoor omnidirectional antenna gain must add that radiation angle limits, its performance quality could be more accurately described, high radiation angle gain is high just means that covering power is strong, low radiation angle gain height means that radiation is strong, otherwise, the gain of high radiation angle is low mean covering power a little less than, low radiation angle gain is low mean electromagnetic radiation a little less than.
In order to address the above problem, existing improvement technology, employing has the single armed oscillator of cone rod structure and the special construction of reflecting disc and the all-around top absorbing antenna of certain size ratio of dish wimble structure, improve the radiation characteristic of high-frequency signal, and cancel impedance matching connecting line, ensure the complete axial symmetry of antenna, the problem such as solved that 1710～2500MHz frequency band signals is assembled downwards and directional diagram circularity is poor, 30 ° low radiation angle gains significantly reduce by 7～15dB, 85 ° high radiation angle gains improve 3～6dB, directional diagram bandwidth and impedance bandwidth exceed 102% simultaneously, thereby significantly improve the covering efficiency of the high-frequency signals such as 3G.
But, along with higher frequency network designs such as LTE/4G, the all-around top absorbing antenna of above-mentioned technological improvement is not considered the downward rendezvous problems of higher frequency signal such as LTE/4G, to 2500MHz with upper frequency maximum gain direction about 60 ° of radiation angles, 85 ° of directive gain decay reach 2dB left and right, signal is assembled downwards still very obvious, make LTE/4G etc. more high-frequency signal cover efficiency still under lower, antenna radiation intensity still higher.
Utility model content
The utility model provides a kind of all-around top absorbing antenna, consider the ultra broadband characteristic of impedance bandwidth and directional diagram bandwidth simultaneously, the problem that whole high band (1710-2700MHz) signal of solution including mobile communication 2G, 3G and 4G assembled downwards, not only expand the effective coverage range of high frequency band signal, make indoor coverage of signal more even, also effectively reduce the beneath electromagnetic radiation of antenna, ensured the safety of indoor electric magnetic environment.
The utility model provides a kind of all-around top absorbing antenna, comprise be bore column radiating doublet, be bore column reflector, be coil column base plate, be hollow tubular binding post, dielectric ring and feeder cable; Wherein, the tip of described reflector is towards the tip of described radiating doublet, and the tip of described radiating doublet is connected with the inner wire of described feeder cable, and the tip of described reflector is connected with the outer conductor of described feeder cable by described binding post;
Described reflector comprises the first hollow cone and the first cylinder ring, and the flared end of described the first hollow cone connects described the first cylinder ring, and described the first cylinder ring external diameter is less than the flared end external diameter of described the first hollow cone;
On described base plate, be provided with the second cylinder ring, described the second cylinder ring and described the first cylinder ring socket, form the coupled structure that space isolates;
Described dielectric ring is arranged between described the second cylinder ring and described the first cylinder ring, to realize the isolation between described reflector and described base plate and to support fixing.
Further, described bottom edge is provided with a disk ring, and described disk ring inward flange connects described the second cylinder ring.
Further, described base plate also comprises: at the bottom of chamfering and disk; Wherein, the edge at the bottom of described disk connects one end of described chamfering, and the other end of described chamfering is connected with described the second cylinder ring.
Further, all-around top absorbing antenna also comprises: dielectric cover, be arranged between described radiating doublet and described reflector, and fixing by the isolation of described dielectric cover and support to realize between described radiating doublet and described reflector.
Further, described radiating doublet comprises the 3rd hollow cone and three cylindrical ring, and the flared end of described the 3rd hollow cone connects described three cylindrical ring.
Further, the height of described radiating doublet is 35～45mm, and the cone angle of described the 3rd hollow cone is 30～35 degree.
Further, described the first hollow cone bottom external diameter is 170～173mm; The external diameter of described the first cylinder ring is 160～163mm, and is highly 5～7mm.
The all-around top absorbing antenna that the utility model provides, by changing the structure of reflector, it is the flared end external diameter that the first cylinder ring external diameter in reflector is less than the first hollow cone in this reflector, further expand directional diagram bandwidth and impedance bandwidth, thereby solve whole high band (1710～2700MHz), especially the problem that 2500～2700MHz frequency band signals is assembled downwards, maximum gain radiation angle is adjusted to 80 ° of left and right, expand the effective coverage range of antenna to high frequency band signal, made indoor coverage of signal more even.Simultaneously, this antenna has increased the base plate of dish rod structure, and by the first cylinder ring socket in the second post annulus of this base plate and reflector, form the coupled structure of space isolation, thereby increased reflector bottom capacitive reactance, and changed reflector surface CURRENT DISTRIBUTION, make reflector and backplane electric current anti-phase, and then high-frequency signal is offset mutually at low radiation angle direction electromagnetic wave, and effectively reduce the beneath electromagnetic radiation of antenna, ensure the safety of indoor electric magnetic environment.
Brief description of the drawings
Fig. 1 is the schematic diagram of an example structure of the utility model all-around top absorbing antenna;
Fig. 2 is the E face directional diagram of low-frequency range 806,870 and 960MHz frequency;
Fig. 3 is the E face directional diagram of high band 1710,1795 and 1880MHz frequency;
Fig. 4 is the E face directional diagram of high band 1920,1990 and 2170MHz frequency;
Fig. 5 is the E face directional diagram of high band 2300,2400 and 2500MHz frequency;
Fig. 6 is the E face directional diagram of high band 2600 frequencies and 2700MHz frequency;
Fig. 7 is the voltage standing wave ratio-frequency curve chart of all-around top absorbing antenna;
Fig. 8 be Fig. 1 along A-A to cutaway view;
Fig. 9 a and Fig. 9 b are respectively the partial schematic diagram of another embodiment of the utility model all-around top absorbing antenna.
Figure 10 a and Figure 10 b are respectively the also partial schematic diagram of an embodiment of the utility model all-around top absorbing antenna.
Embodiment
Fig. 1 is the schematic diagram of an example structure of the utility model all-around top absorbing antenna, it is front view, as shown in Figure 1, the all-around top absorbing antenna of the present embodiment comprises: be bore column radiating doublet 1, be bore column reflector 2, be and coil the base plate 4 of column, the binding post 7 that is hollow tubular and feeder cable 3; The most advanced and sophisticated 2a of this reflector 2 is towards the most advanced and sophisticated 1a of this radiating doublet 1, the most advanced and sophisticated 1a center of this radiating doublet 1 is connected with the inner wire of this feeder cable 3, the most advanced and sophisticated 2a centre bore link post 7 of this reflector 2, and be connected with the outer conductor of this feeder cable 3 by binding post 7.This antenna also comprises: dielectric ring 5.This reflector 2 comprises the first hollow cone 21 and the first cylinder ring 22, and the flared end of this first hollow cone 21 connects this first cylinder ring 22, and these the first cylinder ring 22 external diameters are less than the flared end external diameter of this first hollow cone 21; On this base plate 4, be provided with the second cylinder ring (Fig. 1 does not draw, and refers to Fig. 8), this second cylinder ring and this first cylinder ring 22 are socketed, and form the coupled structure of space isolation; This dielectric ring 5 is arranged between this second cylinder ring and this first cylinder ring 22, to realize the isolation between this reflector 2 and this base plate 4 and to support fixing.
Alternatively, this antenna can also comprise: fixed sleeve part (not marking in figure) and plastic housing etc. are installed.
In the present embodiment, radiating doublet 1, reflector 2 and base plate 4 form the signal amplitude beam of antenna, and radiofrequency signal is from feeder cable 3 feed-ins, through binding post 7, between the most advanced and sophisticated 1a of radiating doublet 1 and the most advanced and sophisticated 2a of reflector 2, emit, to surrounding space radiation.For low frequency signal (806～960MHz), the radiating doublet 1 with cone rod structure forms asymmetric half-wave dipole with reflector 2, base plate 4, and it is 90 ° of (level) directions that directional diagram is maximum gain radiation angle; To high frequency band signal (1710～2700MHz), the relative electrical length of asymmetrical vibrator exceedes 1/2 wavelength, and directional diagram lobe there will be division conventionally, and maximum gain radiation angle reduces with the raising of frequency, and high-frequency signal is assembled under antenna.But, because the tip of the tapering part of this reflector 2 and this radiating doublet 1 in the utility model is oppositely arranged, high-frequency signal is equivalent to biconical antenna, therefore, change the problem that conventional all-around top absorbing antenna high-frequency signal is assembled downwards, improve the gain of high radiation angle, maximum gain radiation angle is adjusted to 80 ° of left and right, expand the effective coverage range of high frequency band signal, make indoor coverage of signal more even, thereby formation operating frequency cover the basically identical ultra-wideband antenna of directional diagram of high and low two frequency ranges.
In addition, in the present embodiment antenna, increase the base plate 4 of dish rod structure, and the second post annulus 41 of this base plate 4 is socketed with the first cylinder ring 22 of reflector 2, form the coupled structure of space isolation, thereby reflector 2 bottom capacitive reactances are increased, and reflector 2 Surface current distributions are changed, make reflector 2 anti-phase with the distributed current on base plate 4, high-frequency signal is offset mutually at low radiation angle direction electromagnetic wave, effectively reduce the beneath electromagnetic radiation of antenna, ensured the safety of indoor electric magnetic environment.By changing the height of the second cylinder ring on base plate 4, and/or reflector 2 and base plate 4 socket modes and the gap between them, to adjust the degree of coupling between reflector 2 and base plate 4, thereby adjust the low radiation angle gain of antenna high band different frequent points, realize the effect of optimizing the low radiation angle gain of whole high band.
For further illustrating the beneficial effect bringing of all-around top absorbing antenna of the present utility model, in the present embodiment, provide in detail the present embodiment sample at 806MH, 870MH, 960MH, 1710MH, 1795MHz, 1880MHz, 1920MHz, 1990MHz, 2170MHz, 2300MHz, 2400MHz, 2500MHz, the frequency such as 2600MHz and 2700MHz actual measurement gain, directional diagram circularity, E face directional diagram and voltage standing wave ratio, the key technical indexes such as third order intermodulation, wherein, Fig. 2 is low-frequency range 806, 870 and the E face directional diagram of 960MHz frequency, Fig. 3 is high band 1710, 1795 and the E face directional diagram of 1880MHz frequency, Fig. 4 is high band 1920, 1990 and the E face directional diagram of 2170MHz frequency, Fig. 5 is high band 2300, 2400 and the E face directional diagram of 2500MHz frequency, Fig. 6 is the E face directional diagram of high band 2600 frequencies and 2700MHz frequency.Fig. 7 is the voltage standing wave ratio-frequency curve chart of all-around top absorbing antenna.
The key technical indexes measured results such as the gain of each frequency (30 ° and 85 °), directional diagram circularity (85 °), voltage standing wave ratio, third order intermodulation are in table one:
Table one
Embodiment sample detection result shows, compared to all-around top absorbing antenna of the prior art, the utility model all-around top absorbing antenna maximum gain radiation angle is 80 ° of left and right, and in radiation angle θ=85 °, low-frequency range (806～960MHz) signal gain remains unchanged substantially, high band (1710～2700MHz) signal gain significantly improves, reduce high band (1710～2700MHz) low radiation angle gain in 30 ° simultaneously, reach the covering efficiency that improves high-frequency signal, reduce the object of indoor electromagnetic radiation intensity simultaneously, and voltage standing wave ratio is all less than 1.5 in 806～960MHz and 1710～2700MHz band limits, realize the ultra broadband characteristic of directional diagram bandwidth and impedance bandwidth, relative bandwidth reaches 108%, significantly improve the gain of the high radiation angle direction of 2500～2700MHz frequency band signals, and further reduce low-frequency range especially 1710～2170MHz frequency band signals in the gain of low radiation angle direction, can realize 2G, the Uniform covers of 3G and LTE/4G signal and effectively reduce indoor electric magnetic environment radiation intensity.
In the present embodiment, by dwindling reflector cylinder ring (being the flared end external diameter that reflector the first cylinder ring external diameter is less than the first hollow cone), further expand directional diagram bandwidth and impedance bandwidth, solve whole high band (1710～2700MHz), especially the problem that 2500～2700MHz frequency band signals is assembled downwards, maximum gain radiation angle is adjusted to 80 ° of left and right, expanded the effective coverage range of antenna to high frequency band signal, made indoor coverage of signal more even.Simultaneously, on this antenna, increase base plate, and by the first cylinder ring socket in the second post annulus on this base plate and reflector, to form the coupled structure of space isolation, thereby increase reflector bottom capacitive reactance, changed reflector surface CURRENT DISTRIBUTION, make reflector and backplane electric current anti-phase, and then high-frequency signal is offset mutually at low radiation angle direction electromagnetic wave, and effectively reduce the beneath electromagnetic radiation of antenna, ensure the safety of indoor electric magnetic environment.
Further, in another embodiment of the present utility model, on the basis of above-mentioned 1 illustrated embodiment one, as shown in Figure 8, Fig. 8 be Fig. 1 along A-A to cutaway view; In the present embodiment, this radiating doublet 1 comprises: three cylindrical ring 11 and the 3rd hollow cone 12, the flared end of the 3rd hollow cone 12 connects this three cylindrical ring 11, and the external diameter of this three cylindrical ring 11 is identical with the flared end bottom surface circle external diameter of the 3rd hollow cone 12.
In addition, alternatively, this antenna can also comprise: dielectric cover 6, be arranged between the most advanced and sophisticated 1a of this radiating doublet 1 and the most advanced and sophisticated 2a of this reflector 2, and fixing with isolation and the support of this reflector 2 to realize this radiating doublet 1.
Alternatively, the flared end of this first hollow cone 21 connects this first cylinder ring 22, and the flared end bottom surface of this first hollow cone 21 circle external diameter is greater than the external diameter of the first cylinder ring 22.
These base plate 4 edges are provided with a disk ring 42, and these disk ring 42 inward flanges connect this second cylinder ring 41.This second cylinder ring 41 is socketed with the first cylinder ring 22 of reflector 2, is isolated and is fixed by dielectric ring 5, forms space isolation coupling structure.
Alternatively, for ease of a drawing, and effectively reduce production cost, base plate 4 is that intermediate projections is discoid, it comprises: at the bottom of the second cylinder ring 41, disk ring 42, chamfering 43 and disk 44,44 center drilling at the bottom of disk, for connecting plastic mounting fixed sleeve part 8, and is convenient to feeder cable 3 and passes.
In addition, the most advanced and sophisticated 1a center of radiating doublet 1 is connected with the inner wire 31 of feeder cable 3, one end of binding post 7 penetrates the centre bore of the most advanced and sophisticated 2a of reflector 2, and be closely connected by hold-down nut 71 with the most advanced and sophisticated 2a of reflector 2, the other end of binding post 7 is connected with the outer conductor 32 of feeder cable 3.
More specifically; feeder cable 3 can adopt the coaxial cable of 50 ohm; feeder cable 3 penetrates from the centre bore that fixed sleeve part 8 is installed; strip off cable plastics protection skin and outer conductor layer; insulating barrier and inner wire 31 penetrate hollow binding post; inner wire 31 welds with radiating doublet 1, and the outer conductor 32 of feeder cable 3 is electrically connected with the other end of binding post 7.
In the present embodiment, by dwindling reflector cylinder ring (being the flared end external diameter that the first cylinder ring external diameter in reflector is less than the first hollow cone in this reflector), and increase base plate on this antenna, and by the first cylinder ring socket in the second post annulus on this base plate and reflector, form the coupled structure of space isolation, further expand directional diagram bandwidth and impedance bandwidth, solve the indoor all-around top absorbing antenna of existing conventional omni-directional ceiling mount antenna and existing improvement technology in the high band especially 2500～2700MHz frequency band signals problem of gathering downwards, directional diagram bandwidth and impedance bandwidth reach 108% simultaneously, and further improve the high radiation angle of 1710～2500MHz frequency band signals and gained.Contrast conventional all-around top absorbing antenna of the prior art, at low-frequency range (806～960MHz), 85 ° of radiation angle gains are basic identical; At high band (1710～2700MHz), 85 ° of radiation angle gains obviously improve, 30 ° of low radiation angles significantly reduce with interior gain, and improve antenna pattern circularity, signal is covered more even, expand the effective coverage range of high-frequency signal, can realize the Uniform covers of 2G, 3G and LTE/4G signal, meanwhile, effectively reduce indoor electric magnetic environment radiation intensity.
Also it should be noted that, antenna of the present utility model has also been realized 806～2700MHz full frequency band ultra broadband impedance bandwidth characteristic; By dwindling reflector cylinder ring (being the flared end external diameter that the first cylinder ring external diameter in reflector is less than the first hollow cone in this reflector), and increase base plate on this antenna, and by the first cylinder ring socket in the second post annulus on this base plate and reflector, to form the coupled structure of space isolation, realize ultra broadband directional diagram bandwidth characteristic and effectively reduced the characteristic of the beneath electromagnetic radiation of antenna.Meanwhile, because this antenna has been cancelled impedance matching line (sheet), in structure, complete axial symmetry, has therefore ensured that direction degree circularity is good.
In addition, this antenna simple in structure, good integrity, be that radiating doublet 1, reflector 2 and base plate 4 etc. all can be one-body molded, being easy to punching press makes, there is compact conformation, assembling is simple, pad is few, exempt from the advantages such as debugging, in indoor distribution system of mobile communication network, be with a wide range of applications.
Fig. 9 a and Fig. 9 b are respectively the partial schematic diagram of another embodiment of the utility model all-around top absorbing antenna, on above-mentioned basis embodiment illustrated in fig. 8, the present embodiment and above-mentioned difference embodiment illustrated in fig. 8 be, at the bottom of disk, 44 and second do not have chamfering 43 to carry out transition between cylinder ring 41.
Concrete, as shown in Fig. 9 a, base plate 4 comprises at the bottom of disk 44 and be connected at the bottom of disk second cylinder ring 41 two parts on 44.Wherein, the second cylinder ring 41 is socketed in the inner side of the first cylinder ring 22, by the 5 space isolation of dielectric ring.44 center drilling 45 at the bottom of disk, for connecting plastic mounting fixed cover, and is convenient to feeder cable 3 and passes.
As shown in Fig. 9 b, base plate 4 comprises at the bottom of disk 44 and be connected at the bottom of disk second cylinder ring 41 two parts on 44.Wherein, the second cylinder ring 41 is socketed in the outside of the first cylinder ring 22, by the 5 space isolation of dielectric ring.44 center drilling 45 at the bottom of disk, for connecting plastic mounting fixed cover, and is convenient to feeder cable 3 and passes.
Figure 10 a and Figure 10 b are respectively the also partial schematic diagram of an embodiment of the utility model all-around top absorbing antenna, on above-mentioned basis embodiment illustrated in fig. 8, the present embodiment and above-mentioned difference embodiment illustrated in fig. 8 are, base plate 4 is annular, and is made up of the second cylinder ring 41 and the disk ring 42 joining.
Concrete, as shown in Figure 10 a, the second cylinder ring 41 is socketed on the inner side of the first cylinder ring 22, and by the 5 space isolation of dielectric ring.
As shown in Figure 10 b, the second cylinder ring 41 is socketed on the outside of the first cylinder ring 22, and by the 5 space isolation of dielectric ring.
Further, in another embodiment of the present utility model, on the basis of above-mentioned each embodiment, the height of this radiating doublet 1 is 35～45mm, wherein, the height of the height of three cylindrical ring 11 and the 3rd hollow cone 12 respectively accounts for the half of the height of this radiating doublet 1.In addition, the cone angle of the 3rd hollow cone 12 is 30～35 degree.In addition, the top center drilling of the 3rd hollow cone 12, bore dia is 0.5～2mm.
Alternatively, the height of this reflector 2 is 53～55mm, and diameter is 170～178mm.The top center drilling of this first hollow cone 21, its bottom external diameter is 170～173mm; The external diameter of this first cylinder ring 22 is 160～163mm, and is highly 5～7mm.
Alternatively, base plate 4 is hollow disc wimble structure, platform cone Duan Congpan intermediate projections, center drilling, bore dia is 4～6mm, closely be connected with the outer conductor 32 of feeder cable 3, protruding platform cone external diameter is slightly less than reflector 2 open tubular columns (i.e. the first cylinder ring 22) internal diameter, is about 150～153mm.
Alternatively, in the present embodiment, the outer cover of this antenna can adopt acrylonitrile-butadiene-styrene copolymer (Acrylonitrile butadiene Styrene copolymers; Be called for short: ABS) material Mould Machining forms, and adopts buckle to be connected between this Antenna baseplate, install simply thereby realize, be connected firmly.
In addition, alternatively, it is that the aluminium sheet Mould Machining of 0.5～2mm forms that radiating doublet 1 can adopt thickness, and dielectric ring 5 also can adopt ABS material Mould Machining to form.
Also it should be noted that, in order to reduce processing cost, other metal partss also can adopt aluminium sheet to be stamped to form.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of the utility model.
Claims (7)
1. an all-around top absorbing antenna, is characterized in that, comprising: be bore column radiating doublet, be bore column reflector, be and coil the base plate of column, the binding post that is hollow tubular, dielectric ring and feeder cable;
Wherein, the tip of described reflector is towards the tip of described radiating doublet, and the tip of described radiating doublet is connected with the inner wire of described feeder cable, and the tip of described reflector is connected with the outer conductor of described feeder cable by described binding post;
Described reflector comprises the first hollow cone and the first cylinder ring, and the flared end of described the first hollow cone connects described the first cylinder ring, and described the first cylinder ring external diameter is less than the flared end external diameter of described the first hollow cone;
On described base plate, be provided with the second cylinder ring, described the second cylinder ring and described the first cylinder ring socket, form the coupled structure that space isolates;
Described dielectric ring is arranged between described the second cylinder ring and described the first cylinder ring, to realize the isolation between described reflector and described base plate and to support fixing.
2. all-around top absorbing antenna according to claim 1, is characterized in that, described bottom edge is provided with a disk ring, and described disk ring inward flange connects described the second cylinder ring.
3. all-around top absorbing antenna according to claim 2, is characterized in that, described base plate also comprises: at the bottom of chamfering and disk; Wherein, the edge at the bottom of described disk connects one end of described chamfering, and the other end of described chamfering is connected with described the second cylinder ring.
4. according to the arbitrary described all-around top absorbing antenna of claims 1 to 3, it is characterized in that, also comprise: dielectric cover, be arranged between described radiating doublet and described reflector, fixing by the isolation of described dielectric cover and support to realize between described radiating doublet and described reflector.
5. all-around top absorbing antenna according to claim 1, is characterized in that, described radiating doublet comprises the 3rd hollow cone and three cylindrical ring, and the flared end of described the 3rd hollow cone connects described three cylindrical ring.
6. all-around top absorbing antenna according to claim 5, is characterized in that:
The height of described radiating doublet is 35～45mm, and the cone angle of described the 3rd hollow cone is 30～35 degree.
7. all-around top absorbing antenna according to claim 1, is characterized in that:
Described the first hollow cone bottom external diameter is 170～173mm; The external diameter of described the first cylinder ring is 160～163mm, and is highly 5～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323194.4U CN203895594U (en) | 2014-06-17 | 2014-06-17 | Omni-directional ceiling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323194.4U CN203895594U (en) | 2014-06-17 | 2014-06-17 | Omni-directional ceiling antenna |
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| Publication Number | Publication Date |
|---|---|
| CN203895594U true CN203895594U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323194.4U Withdrawn - After Issue CN203895594U (en) | 2014-06-17 | 2014-06-17 | Omni-directional ceiling antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037487A (en) * | 2014-06-17 | 2014-09-10 | 中国联合网络通信集团有限公司 | Omni-directional ceiling antenna |
| CN106329078A (en) * | 2016-10-08 | 2017-01-11 | 广东通宇通讯股份有限公司 | Edge enhanced type all-around ceiling antenna |
-
2014
- 2014-06-17 CN CN201420323194.4U patent/CN203895594U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037487A (en) * | 2014-06-17 | 2014-09-10 | 中国联合网络通信集团有限公司 | Omni-directional ceiling antenna |
| WO2015192730A1 (en) * | 2014-06-17 | 2015-12-23 | 中国联合网络通信集团有限公司 | Omni-directional ceiling antenna |
| CN104037487B (en) * | 2014-06-17 | 2016-09-21 | 中国联合网络通信集团有限公司 | All-around top absorbing antenna |
| CN106329078A (en) * | 2016-10-08 | 2017-01-11 | 广东通宇通讯股份有限公司 | Edge enhanced type all-around ceiling antenna |
| CN106329078B (en) * | 2016-10-08 | 2023-06-23 | 广东通宇通讯股份有限公司 | Edge-enhanced omni-directional ceiling antenna |
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