CN203871465U - Omnidirectional ceiling antenna - Google Patents
Omnidirectional ceiling antenna Download PDFInfo
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- CN203871465U CN203871465U CN201420191647.2U CN201420191647U CN203871465U CN 203871465 U CN203871465 U CN 203871465U CN 201420191647 U CN201420191647 U CN 201420191647U CN 203871465 U CN203871465 U CN 203871465U
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- 238000004088 simulation Methods 0.000 description 16
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- 238000010586 diagram Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000002747 voluntary effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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Abstract
The utility model discloses an omnidirectional ceiling antenna which comprises the components of: a first radiator with more than two conical structures, and a second radiator with more than two conical structures, wherein the first radiator and the second radiator are oppositely arranged. A signal which is fed in the antenna is outwards transmitted by the first radiator and the second radiator.
Description
Technical field
The utility model relates to the antenna technology of the communications field, relates in particular to a kind of all-around top absorbing antenna.
Background technology
In order to realize omnidirectional radiation, Schelkunoff has proposed a kind of biconical antenna model according to half-wave dipole principle, due to himself grading structure form and horizontally rotate symmetry, so this biconical antenna has natural good broadband character and omnidirectional's characteristic.As shown in Figure 1, the brachium of two cones equates typical biconical antenna, and for there being limit for length a, the semi-cone angle of upper cone and lower cone is made as respectively θ
1and θ
2.Work as θ
1=θ
2time, biconical antenna is called symmetrical biconical antenna; Work as θ
2=90 ° time, biconical antenna is called discone antenna; Work as θ
2when 90 ° of >, biconical antenna is called coaxial biconical antenna; When the symmetry axis of upper cone and lower cone is not when conllinear, biconical antenna is called off-axis biconical antenna; Work as θ
2when=90 ° and hypocentrum are endless metal plate, biconical antenna is called monocone antenna.The prototype of the single cone all-around top absorbing antenna generally using in existing network at present, is carried out limited truncation by endless metal plate and obtains.
Traditional single cone all-around top absorbing antenna, the greatest irradiation direction of low-frequency range concentrates within the scope of 80 ° to 90 °, and the greatest irradiation direction of high band at 30 ° within the scope of 45 °.Because the loss of high-frequency path is larger, but the greatest irradiation deflection of high band diminishes, so, can cause antenna the coverage of high band diminish and the coverage of height frequency range inconsistent.
For addressing the above problem, someone has proposed to adopt the all-around top absorbing antenna of bipyramid version, and still, the design of the all-around top absorbing antenna of this bipyramid version exists the unbalanced defect of signal radiation.
Utility model content
For solving the technical problem of existing existence, the utility model embodiment provides a kind of all-around top absorbing antenna.
The utility model embodiment provides a kind of all-around top absorbing antenna, comprising: have the first radiant body of the above wimble structure of secondary and have the second radiant body of the above wimble structure of secondary; Wherein,
Described the first radiant body and described the second radiant body subtend arrange;
The signal of feed antenna is outwards launched by described the first radiant body and described the second radiant body.
In such scheme, described the first radiant body comprises: the first hollow platform cone and the second hollow platform cone; Wherein,
Described the first hollow platform cone is connected from top to bottom successively with described the second hollow platform cone.
In such scheme, the cone angle of described the first hollow platform cone than the cone angle of described the second hollow platform cone little 60 °～135 °.
In such scheme, the cone angle of described the first hollow platform cone is 5 °～30 °, and the cone angle of described the second hollow platform cone is 90 °～140 °.
In such scheme, the cone of described the second hollow platform cone cone high mixture ratio high and described the first hollow platform cone is 1/5～1.
In such scheme, the cone height of described the second hollow platform cone is 10mm～25mm; The cone height of described the first hollow platform cone is 25mm～50mm.
In such scheme, described the second radiant body comprises: the 3rd hollow platform cone, the first circular table, the 4th hollow platform cone and the second circular disk; Wherein,
Described the 3rd hollow platform cone, described the first circular table, described the 4th hollow platform cone and described the second circular disk connect from top to bottom successively.
In such scheme, the cone angle of described the 3rd hollow platform cone is than large 5 °～30 ° of the cone angle of described the 4th hollow platform cone.
In such scheme, the cone angle of described the 3rd hollow platform cone is controlled at 90 °～160 °; The cone angle of described the 4th hollow platform cone is 90 °～130 °.
In such scheme, the cone of described the 3rd hollow platform cone cone high mixture ratio high and described the 4th hollow platform cone is 1/10～5/4.
In such scheme, the cone height of described the 3rd hollow platform cone is 5mm～25mm; The cone height of described the 4th hollow platform cone is 20mm～50mm.
In such scheme, the width of described the first circular table is 3mm～18mm.
In such scheme, described the first radiant body comprises: the 5th hollow platform cone, the 6th hollow platform cone and the 7th hollow platform cone; Wherein,
Described the 5th hollow platform cone, described the 6th hollow platform cone and described the 7th hollow platform cone connect from top to bottom successively.
In such scheme, the cone angle of the cone angle of described the 5th hollow platform cone, described the 6th hollow platform cone and the cone angle of described the 7th hollow platform cone are each unequal.
In such scheme, described the second radiant body comprises: the 8th hollow platform cone, the 3rd circular table, the 9th hollow platform cone, the 4th circular table, the tenth hollow platform cone and the 5th circular disk; Wherein,
Described the 8th hollow platform cone, described the 3rd circular table, described the 9th hollow platform cone, described the 4th circular table, described the tenth hollow platform cone and described the 5th circular disk connect from top to bottom successively.
In such scheme, the cone angle of the cone angle of described the 8th hollow platform cone, described the 9th hollow platform cone and the cone angle of described the tenth hollow platform cone are each unequal.
In such scheme, cable heart yearn and the via hole welding that is arranged on described the first radiant body lower bottom part, outer conductor is fastenedly connected with the upper bottom portion via hole that is arranged on described the second radiant body.
The all-around top absorbing antenna that the utility model embodiment provides, comprise: first radiant body and the second radiant body subtend setting with the above wimble structure of secondary with the above wimble structure of secondary, the signal of feed antenna is outwards launched by the first radiant body and the second radiant body, so, can effectively increase greatest irradiation direction and adjust point, especially be that more than 1GHz high frequency band signal is (such as the 4th third-generation mobile communication technology (4G for frequency, 4th-Generation) signal) covering, thereby adjust frequency simultaneously for high frequency band signal more than 1GHz and frequency be that low-band signal below 1GHz is (such as Generation Mobile Telecommunication System technology (2G, 2nd-Generation), 3G signal) coverage effect.
In addition, the all-around top absorbing antenna that the utility model embodiment provides, radiant body (comprising the first radiant body and the second radiant body) the horizontal full symmetric of overall structure, therefore the directional diagram circularity of antenna is good, and simple in structure.
Brief description of the drawings
In accompanying drawing (it is not necessarily drawn in proportion), similar Reference numeral can be described similar parts in different views.The similar Reference numeral with different letter suffix can represent the different examples of similar parts.With example, unrestriced mode shows each embodiment discussed herein to accompanying drawing substantially.
Fig. 1 is typical biconical antenna structural representation;
Fig. 2 is a kind of all-around top absorbing antenna structural representation of bipyramid version;
Fig. 3 is the all-around top absorbing antenna of another kind of bipyramid version;
Fig. 4 a is the schematic perspective view of the utility model embodiment mono-all-around top absorbing antenna;
The profile of Fig. 4 b the utility model embodiment mono-all-around top absorbing antenna;
Fig. 5 a is the schematic perspective view of the utility model embodiment bis-all-around top absorbing antennas;
Fig. 5 b is the profile of the utility model embodiment bis-all-around top absorbing antennas;
Fig. 6 a-Fig. 6 c is that the all-around top absorbing antenna of traditional all-around top absorbing antenna and the utility model embodiment is at low-frequency range antenna pattern simulation result;
Fig. 7 a-Fig. 7 g is that the all-around top absorbing antenna of traditional all-around top absorbing antenna and the utility model embodiment is at high band radiation pattern simulation result.
Embodiment
It should be noted that, used herein first, second ... only represent the element of diverse location, the parameter to element or function do not limit.
First, introduce the specific implementation of the ceiling mount antenna of existing bipyramid version, mainly contain following two kinds:
The all-around top absorbing antenna of the first bipyramid version as shown in Figure 2, is to have done some improvement on the basis of the typical bipyramid structural antenna shown in Fig. 1.Particularly, first, by the semi-cone angle θ of upper cone
1semi-cone angle θ with lower cone
2all be controlled in 90 °, and θ
1be not equal to θ
2; Secondly, an additional hollow circular cylinder above upper cone; The 3rd, the cone of hypocentrum is high, and to be not equal to the cone of centrum high, and below hypocentrum an additional hollow circular cylinder; Wherein, coaxial line heart yearn is connected with feeder pillar, and outer conductor is connected with feed connection.Here, feeder pillar is arranged on centrum bottom, feed connection is connected with hypocentrum top, thereby increase the radiation angle of antenna at high band, can be controlled at more than 60 °, and then promote the covering quality of indoor heating system 3G (Third Generation) Moblie technology (3G, 3rd-Generation) signal.But, because the outer conductor of the feed of the all-around top absorbing antenna of this bipyramid version is arranged on the outside of antenna, with the agent structure (comprising single armed a period of time, reflecting disc and feed connection) of antenna be not one, therefore, the volume ratio of designing all-around top absorbing antenna is larger.The Chinese patent that the concrete structure of the all-around top absorbing antenna of the first bipyramid version can application reference number be 200910206813.5, denomination of invention is " all-around top absorbing antenna using in indoor distribution system of mobile communication network ".
The all-around top absorbing antenna of the second bipyramid version as shown in Figure 3, is to be to have done some improvement on the basis of the typical bipyramid structural antenna shown in Fig. 1 equally.Particularly, first, by the semi-cone angle θ of upper cone
1semi-cone angle θ with lower cone
2all be controlled in 90 °, and θ
1be not equal to θ
2; The second, strengthen the frustum radius of upper cone and lower cone, and be welded to connect sheet between upper cone and lower cone, to regulate antenna standing wave.But, due to the structural design of brace, the grading structure of antenna radiator and symmetry are all destroyed, so, can cause the signal radiation of antenna unbalanced, being mainly reflected in directional diagram circularity can variation.The Chinese patent application that the concrete structure of the all-around top absorbing antenna of the second bipyramid version can application reference number be 200910111630.8, denomination of invention is " a kind of novel ceiling antenna ".
Based on this, in various embodiment of the present utility model: have first radiant body and the second radiant body subtend setting with the above wimble structure of secondary of the above wimble structure of secondary, the signal of feed antenna is outwards launched by the first radiant body and the second radiant body.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail again.
Embodiment mono-
Fig. 4 a is the three-dimensional structure diagram of the present embodiment all-around top absorbing antenna.The present embodiment all-around top absorbing antenna, as shown in Figure 4 b, comprising: have the first radiant body 41 of secondary wimble structure and have the second radiant body 42 of secondary wimble structure; Wherein, the first radiant body 41 and the second radiant body 42 subtend settings, the signal of feed antenna is outwards launched by the first radiant body 41 and the second radiant body 42.
As shown in Figure 4 b, the first radiant body 41 and the second radiant body 42 are by cylinder 43 subtend settings.
Here first, according to the technical specification of existing all-around top absorbing antenna and index request, require all-around top absorbing antenna to cancel DC earthing; Secondly, guarantee that the radiant body entirety of designing becomes grading structure form, and horizontally rotate symmetry, so, can simplify the structure of antenna, can improve again the directional diagram circularity index of antenna, thereby improve the uniformity that aerial signal covers.According to these requirements, design the all-around top absorbing antenna that the utility model embodiment provides.
As shown in Figure 4 b, the first radiant body 41 comprises: the first hollow platform cone 411 and the second hollow platform cone 412; The first hollow platform cone 411 is connected from top to bottom successively with the second hollow platform cone 412; The cone angle of the first hollow platform cone 411 is different from the cone angle of the second hollow platform cone 412.The second radiant body 42 comprises: the 3rd hollow platform cone 421, the first circular table 422, the 4th hollow platform cone 423 and the second circular disk 424; The 3rd hollow platform cone 421, the first circular table 422, the 4th hollow platform cone 423 and the second circular disk 424 connect from top to bottom successively; The cone angle of the 3rd hollow platform cone 421 is different from the cone angle of the 4th hollow platform cone 423.
Wherein, the material of the first radiant body 41 and the second radiant body 42 can be metal material, when practical application, can preferentially select aluminium or copper, and the thickness of the first radiant body 41 and the second radiant body 42 can be controlled at 1mm～2mm.That is to say, the thickness of the first hollow platform cone 411, the second hollow platform cone 412, the 3rd hollow platform cone 421, the first circular table 422, the 4th hollow platform cone 423 and the second circular disk 424 can be 1mm～2mm.
Here, the all-around top absorbing antenna profile providing from the utility model embodiment looks, is followed successively by from top to bottom: the first hollow platform cone 411, the second hollow platform cone 412, cylinder 43, the 3rd hollow platform cone 421, the first circular table 422, the 4th hollow platform cone 423 and the second circular disk 424.
Acting as of the second circular disk 424: the first, as a part for the second radiant body 42, regulate the circuit parameter of radiant body; After bending, can reduce the volume of whole antenna simultaneously; On the second, the second circular disk 424, be provided with locating notch, to carry out the location and installation main body of radiant body, prevent that the radiant body of antenna from carrying out the motion of all directions in radome, in other words, prevent radiant body voluntary activity in radome of antenna.
Because the first radiant body 41 comprises the first hollow platform cone 411 and 412 two platform cones of the second hollow platform cone, so the first radiant body 41 is called first radiant body with secondary wimble structure; In like manner, the second radiant body 42 comprises the 3rd hollow platform cone 421 and 423 two platform cones of the 4th hollow platform cone, so the second radiant body 42 is called second radiant body with secondary wimble structure.
When practical application, can tentatively adjust by the cone angle of the first hollow platform cone 411 and the second hollow platform cone 412 and cone high mixture ratio the greatest irradiation direction of all-around top absorbing antenna.Particularly, according within the scope of certain angle, cone angle is larger, and the greatest irradiation orientation angle of antenna is larger, adjusts the cone angle of the first hollow platform cone 411 and the second hollow platform cone 412; Meanwhile, adjust the first hollow platform cone 411 and the second hollow platform cone 412 cone high mixture ratio take into account adjustment standing wave, thereby widen the frequency bandwidth of all-around top absorbing antenna.According to the result of emulation experiment, the cone angle of the second hollow platform cone 412 is controlled between 90 ° to 140 °, and the cone angle of the first hollow platform cone 411 is controlled between 5 ° to 30 °, and cone angle that the cone angle of the first hollow platform cone 411 is bored than the second hollow platform is little 60 °～and 135 °; The high 10mm that is controlled at of cone of the second hollow platform cone 412 is between 25mm, the high 25mm that is controlled at of cone of the first hollow platform cone 411 is between 50mm, the cone cone high mixture ratio high and the first hollow platform cone 411 of the second hollow platform cone 412 is controlled between 1/5 to 1, so, can effectively improve the greatest irradiation direction scope of the all-around top absorbing antenna of designing.
After the cone angle of the first hollow platform cone 411 and the second hollow platform cone 412 and cone high mixture ratio are determined, can continue to adjust antenna greatest irradiation direction by the cone angle of the 3rd hollow platform cone 421 and the 4th hollow platform cone 423 and cone high mixture ratio.Particularly, according to emulation experiment, can draw: the cone angle of the 3rd hollow platform cone 421 is greater than the cone angle of the 4th hollow platform cone 423; And on the definite basis of cone high mixture ratio, if after the 3rd hollow platform cone 421 is directly connected with the 4th hollow platform cone 423, can make oscillator length change, thereby standing wave can increase.Therefore, the utility model embodiment has designed the first circular table 422, connect the 3rd hollow platform cone 421 and the 4th hollow platform cone 423 by the first circular table 422, and then design oscillator length by the width that changes circular table 422, to improve standing wave, widen the frequency bandwidth of all-around top absorbing antenna.According to the result of emulation experiment, the cone angle of the 3rd hollow platform cone 421 is controlled between 90 ° to 160 °, the cone angle of the 4th hollow platform cone 423 is controlled between 90 ° to 130 °, and the cone angle of the 3rd hollow platform cone 421 is than large 5 °～30 ° of the cone angle of the 4th hollow platform cone 423; The high 5mm that is controlled at of cone of the 3rd hollow platform cone 421 is between 25mm, and the high 20mm that is controlled at of cone of the 4th hollow platform cone 423 is between 50mm, and the cone of the 3rd hollow platform cone 421 cone high mixture ratio high and the 4th hollow platform cone 423 is controlled between 1/10 to 5/4; The width of the first circular table 422 is controlled at 3mm between 18mm, so, can effectively improve the greatest irradiation direction scope of the all-around top absorbing antenna of designing.
The all-around top absorbing antenna that the utility model embodiment provides, cable heart yearn can directly weld with the via hole that is arranged on the first radiant body 41 (the second hollow platform cone 412) lower bottom part, cable heart yearn is connected with outer conductor through cylinder 43, outer conductor is fastenedly connected with the upper bottom portion via hole that is arranged on the second radiant body 42 (the 3rd hollow platform cone 421), adopt integrated connection cable thereby realize, so, can make feeding classification simple.When practical application, outer conductor can be fixed on by plastic nut the upper bottom portion via hole of the 3rd hollow platform cone 421.
Here, the all-around top absorbing antenna front view providing from the utility model embodiment looks, the lower bottom part of the first radiant body 41 is the lower bottom part of the second hollow platform cone 412, and the upper bottom portion of the second radiant body 42 refers to the upper bottom portion of the 3rd hollow platform cone 421.
In addition, when after definite the first radiant body 41 and the each self-corresponding parameter of the second radiant body 42, can carry out trickle adjustment to the cone angle of corresponding oscillator length and each hollow platform cone by emulation experiment, with the overall structure size of reduction all-around top absorbing antenna, finally, by emulation experiment, the integral radius that can make the all-around top absorbing antenna that the utility model embodiment provides than the radius reduction 10mm of existing all-around top absorbing antenna to 15mm.
Embodiment bis-
The three-dimensional structure diagram of the all-around top absorbing antenna that Fig. 5 a the present embodiment provides.The present embodiment all-around top absorbing antenna, as shown in Figure 5 b, comprising: have the first radiant body 51 of three grades of wimble structures and have the second radiant body 52 of three grades of wimble structures; Wherein, the first radiant body 51 and the second radiant body 52 subtend settings, the signal of feed antenna is outwards launched by the first radiant body 51 and the second radiant body 52.
As shown in Figure 5 b, the first radiant body 51 and the second radiant body 52 are by cylinder 53 subtend settings.
Here first, according to the technical specification of existing all-around top absorbing antenna and index request, require all-around top absorbing antenna to cancel DC earthing; Secondly, guarantee that the radiant body entirety of designing becomes grading structure form, and horizontally rotate symmetry, so, can simplify the structure of antenna, can improve again the directional diagram circularity index of antenna, thereby improve the uniformity that aerial signal covers.According to these requirements, design the all-around top absorbing antenna that the utility model embodiment provides.
As shown in Figure 5 b, the first radiant body 51 comprises: the 5th hollow platform cone 511, the 6th hollow platform cone 512 and the 7th hollow platform cone 513; The 5th hollow platform cone 511, the 6th hollow platform cone 512 and the 7th hollow platform cone 513 connect from top to bottom successively; The cone angle of the cone angle of the 5th hollow platform cone 511, the cone angle of the 6th hollow platform cone 512 and the 7th hollow platform cone 513 is different.The second radiant body 52 comprises: the 8th hollow platform cone 521, the 3rd circular table 522, the 9th hollow platform cone 523, the 4th circular table 524, the tenth hollow platform cone 525 and the 5th circular disk 526; The 8th hollow platform cone 521, the 3rd circular table 522, the 9th hollow platform cone 523, the 4th circular table 524, the tenth hollow platform cone 525 and the 5th circular disk 526 connect from top to bottom successively; The cone angle of the cone angle of the 8th hollow platform cone 521, the cone angle of the 9th hollow platform cone 523, the tenth hollow platform cone 525 is different.
Wherein, when practical application, can adopt the principle identical with embodiment mono-, adopt emulation experiment to determine the cone angle of the cone angle of the cone angle of the cone angle of the cone angle of the 5th hollow platform cone 511, the 6th hollow platform cone 512, the 7th hollow platform cone 513, the 8th hollow platform cone 521, the 9th hollow platform cone 523 and the cone angle of the tenth hollow platform cone 525.
The cone angle of the cone angle of the 5th hollow platform cone 511, the cone angle of the 6th hollow platform cone 512 and the 7th hollow platform cone 513 is different, that is to say, the cone angle of the 5th hollow platform cone 511 is not equal to the cone angle of the 6th hollow platform cone 512, also be not equal to the cone angle of the 7th hollow platform cone 513, the cone angle of the 6th hollow platform cone 512 is also not equal to and the cone angle of the 7th hollow platform cone 513 simultaneously; Correspondingly, the cone angle of the cone angle of the 8th hollow platform cone 521, the cone angle of the 9th hollow platform cone 523, the tenth hollow platform cone 525 is different, in other words, the cone angle of the 8th hollow platform cone 521 is not equal to the cone angle of the 9th hollow platform cone 523, also be not equal to the cone angle of the tenth hollow platform cone 525, the cone angle of the 9th hollow platform cone 523 is also not equal to the cone angle of the tenth hollow platform cone 525 simultaneously.
The material of the first radiant body 51 and the second radiant body 52 can be metal material, when practical application, can preferentially select aluminium or copper, and the thickness of the first radiant body 51 and the second radiant body 52 can be controlled at 1mm～2mm.That is to say, the thickness of the 5th hollow platform cone 511, the 6th hollow platform cone 512, the 7th hollow platform cone 513, the 8th hollow platform cone 521, the 3rd circular table 522, the 9th hollow platform cone 523 and the 4th circular table 524, the tenth hollow platform cone 525 and the 5th circular disk 526 can be 1mm～2mm.
Here, the all-around top absorbing antenna profile providing from the utility model embodiment looks, is followed successively by from top to bottom: the 5th hollow platform cone 511, the 6th hollow platform cone 512, the 7th hollow platform cone 513, the 8th hollow platform cone 521, the 3rd circular table 522, the 9th hollow platform cone 523 and the 4th circular table 524, the tenth hollow platform cone 525 and the 5th circular disk 526.
Acting as of the 5th circular disk 526: the first, as a part for the second radiant body 52, regulate the circuit parameter of radiant body; After bending, can reduce the volume of whole antenna simultaneously; On the second, the five circular disk 526, be provided with locating notch, to carry out the location and installation main body of radiant body, prevent that the radiant body of antenna from carrying out the motion of all directions in radome, in other words, prevent radiant body voluntary activity in radome of antenna.
Because the first radiant body 51 comprises the 5th hollow platform cone 511, the 6th hollow platform cone 512,513 3 platform cones of the 7th hollow platform cone, so the first radiant body 51 is called first radiant body with three grades of wimble structures; In like manner, the second radiant body 52 comprises the 8th hollow platform cone 521, the 9th hollow platform cone 523 and 525 3 platform cones of the tenth hollow platform cone, so the second radiant body 52 is called second radiant body with three grades of wimble structures.
The all-around top absorbing antenna that the utility model embodiment provides, cable heart yearn can directly weld with the via hole that is arranged on the first radiant body 52 (the 7th hollow platform cone 513) lower bottom part, cable heart yearn is connected with outer conductor through cylinder 53, outer conductor is fastenedly connected with the upper bottom portion via hole that is arranged on the second radiant body 52 (the 8th hollow platform cone 521), adopt integrated connection cable thereby realize, so, can make feeding classification simple.When practical application, outer conductor can be fixed on by plastic nut the upper bottom portion via hole of the 8th hollow platform cone 521.
Here, the all-around top absorbing antenna front view providing from the utility model embodiment looks, the lower bottom part of the first radiant body 52 is the lower bottom part of the 7th hollow platform cone 513, and the upper bottom portion of the second radiant body 52 refers to the upper bottom portion of the 8th hollow platform cone 521.
For the technical scheme that adopts the utility model embodiment is described, the all-around top absorbing antenna that the utility model also provides traditional all-around top absorbing antenna and the utility model embodiment mono-has carried out emulation experiment contrast.The all-around top absorbing antenna that Fig. 6 a-Fig. 6 c provides for traditional all-around top absorbing antenna and the utility model embodiment mono-is at low-frequency range antenna pattern simulation result.The all-around top absorbing antenna that Fig. 7 a-Fig. 7 g provides for traditional all-around top absorbing antenna and the utility model embodiment mono-is at high band radiation pattern simulation result.Wherein, Fig. 6 a is to be 806MHz in frequency,
time simulation result, Fig. 6 b is to be 880MHz in frequency,
time simulation result, Fig. 6 c is to be 960MHz in frequency,
time simulation result; Fig. 7 a is to be 1.88GHz in frequency,
time simulation result, Fig. 7 b is to be 1.92GHz in frequency,
time simulation result, Fig. 7 c is to be 2.01GHz in frequency,
time simulation result, Fig. 7 d is to be 2.025GHz in frequency,
time simulation result, Fig. 7 e is to be 2.3GHz in frequency,
time simulation result, Fig. 7 f is to be 2.45GHz in frequency,
time simulation result, Fig. 7 g is to be 2.6GHz in frequency,
time simulation result.From Fig. 6 a-6c, can find out, after the all-around top absorbing antenna that employing the utility model embodiment provides, low-frequency range greatest irradiation direction is 85 ° of left and right, and the main concentration of energy of the utility model embodiment all-around top absorbing antenna is on 85 ° of left and right directions, compared with traditional all-around top absorbing antenna, under the all-around top absorbing antenna of the utility model embodiment, radiation intensity is reduced to some extent.Can find out from Fig. 7 a-7g, after the all-around top absorbing antenna that employing the utility model embodiment provides, high band greatest irradiation direction is more than 70 °, improve more than 30 ° than traditional all-around top absorbing antenna greatest irradiation direction, and emittance is concentrated on to 85 ° of left and right, improve the effective radiation radius of high band, and reduced the radiation intensity under antenna.Wherein, directional diagram below is irradiated to ground.In Fig. 6 a-7g,
represent the all-around top absorbing antenna simulation result of the utility model embodiment,
represent traditional all-around top absorbing antenna simulation result.
From description above, can find out, the all-around top absorbing antenna that adopts the utility model embodiment to provide, be that more than 1GHz high frequency band signal is (such as 4G signal is TD SDMA (TD-SCDMA by the frequency of antenna, Time Division-Synchronous Code Division Multiple Access) and time-division Long Term Evolution (TD-LTE, Time Division-Long Term Evolution) signal) greatest irradiation direction can rise to 70 ° to 85 ° scopes, and more than the average gain value within the scope of this is compared to the single cone of tradition ceiling mount antenna lifting 5dB, by the above wimble structure design of secondary of radiant body, more than the yield value of 85 ° of radiation directions is risen to 2dB, solve low-and high-frequency covering radius inconsistence problems, promote the covering cell-edge value of high frequency.
From description above, can find out, the all-around top absorbing antenna that the utility model embodiment provides, adopt the above wimble structure of secondary, so, can effectively increase greatest irradiation direction and adjust point, especially be the covering of high frequency band signal (such as 4G signal) more than 1GHz for frequency, thus adjust frequency simultaneously for high frequency band signal more than 1GHz and frequency be the coverage effect of the low-band signal (such as 2G, 3G signal) below 1GHz.
In addition, the all-around top absorbing antenna that the utility model embodiment provides, after the greatest irradiation direction of high frequency band signal is increased, high frequency band signal radiation radius is increased, reduce antenna bottom radiation field intensity simultaneously, promote cell-edge, thereby its effective radiating area is increased, and its antijamming capability is strengthened, and the signal strength signal intensity after through walls promotes to some extent.
The all-around top absorbing antenna that the utility model embodiment provides, radiant body (comprising the first radiant body and the second radiant body) the horizontal full symmetric of overall structure, therefore the directional diagram circularity of antenna is good, and simple in structure.
The all-around top absorbing antenna that the utility model embodiment provides, feeding classification is also fairly simple.
The above, be only preferred embodiment of the present utility model, is not intended to limit protection range of the present utility model.
Claims (17)
1. an all-around top absorbing antenna, is characterized in that, described all-around top absorbing antenna comprises: have the first radiant body of the above wimble structure of secondary and have the second radiant body of the above wimble structure of secondary; Wherein,
Described the first radiant body and described the second radiant body subtend arrange;
The signal of feed antenna is outwards launched by described the first radiant body and described the second radiant body.
2. all-around top absorbing antenna according to claim 1, is characterized in that, described the first radiant body comprises: the first hollow platform cone and the second hollow platform cone; Wherein,
Described the first hollow platform cone is connected from top to bottom successively with described the second hollow platform cone.
3. all-around top absorbing antenna according to claim 2, is characterized in that,
The cone angle of described the first hollow platform cone than the cone angle of described the second hollow platform cone little 60 °～135 °.
4. all-around top absorbing antenna according to claim 3, is characterized in that, the cone angle of described the first hollow platform cone is 5 °～30 °, and the cone angle of described the second hollow platform cone is 90 °～140 °.
5. all-around top absorbing antenna according to claim 3, is characterized in that, the cone cone high mixture ratio high and described the first hollow platform cone of described the second hollow platform cone is 1/5～1.
6. all-around top absorbing antenna according to claim 5, is characterized in that, the cone height of described the second hollow platform cone is 10mm～25mm; The cone height of described the first hollow platform cone is 25mm～50mm.
7. all-around top absorbing antenna according to claim 1, is characterized in that, described the second radiant body comprises: the 3rd hollow platform cone, the first circular table, the 4th hollow platform cone and the second circular disk; Wherein,
Described the 3rd hollow platform cone, described the first circular table, described the 4th hollow platform cone and described the second circular disk connect from top to bottom successively.
8. all-around top absorbing antenna according to claim 7, is characterized in that,
The cone angle of described the 3rd hollow platform cone is than large 5 °～30 ° of the cone angle of described the 4th hollow platform cone.
9. all-around top absorbing antenna according to claim 8, is characterized in that, the cone angle of described the 3rd hollow platform cone is controlled at 90 °～160 °; The cone angle of described the 4th hollow platform cone is 90 °～130 °.
10. all-around top absorbing antenna according to claim 8, is characterized in that, the cone cone high mixture ratio high and described the 4th hollow platform cone of described the 3rd hollow platform cone is 1/10～5/4.
11. all-around top absorbing antennas according to claim 10, is characterized in that, the cone height of described the 3rd hollow platform cone is 5mm～25mm; The cone height of described the 4th hollow platform cone is 20mm～50mm.
12. all-around top absorbing antennas according to claim 7, is characterized in that, the width of described the first circular table is 3mm～18mm.
13. all-around top absorbing antennas according to claim 1, is characterized in that, described the first radiant body comprises: the 5th hollow platform cone, the 6th hollow platform cone and the 7th hollow platform cone; Wherein,
Described the 5th hollow platform cone, described the 6th hollow platform cone and described the 7th hollow platform cone connect from top to bottom successively.
14. all-around top absorbing antennas according to claim 13, is characterized in that,
The cone angle of the cone angle of described the 5th hollow platform cone, the cone angle of described the 6th hollow platform cone and described the 7th hollow platform cone is each unequal.
15. all-around top absorbing antennas according to claim 1, is characterized in that, described the second radiant body comprises: the 8th hollow platform cone, the 3rd circular table, the 9th hollow platform cone, the 4th circular table, the tenth hollow platform cone and the 5th circular disk; Wherein,
Described the 8th hollow platform cone, described the 3rd circular table, described the 9th hollow platform cone, described the 4th circular table, described the tenth hollow platform cone and described the 5th circular disk connect from top to bottom successively.
16. all-around top absorbing antennas according to claim 15, is characterized in that, the cone angle of the cone angle of described the 8th hollow platform cone, the cone angle of described the 9th hollow platform cone and described the tenth hollow platform cone is each unequal.
17. according to the all-around top absorbing antenna described in claim 1 to 16 any one, it is characterized in that, and cable heart yearn and the via hole welding that is arranged on described the first radiant body lower bottom part, outer conductor is fastenedly connected with the upper bottom portion via hole that is arranged on described the second radiant body.
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| CN201420191647.2U CN203871465U (en) | 2014-04-12 | 2014-04-12 | Omnidirectional ceiling antenna |
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| CN201420191647.2U CN203871465U (en) | 2014-04-12 | 2014-04-12 | Omnidirectional ceiling antenna |
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| CN203871465U true CN203871465U (en) | 2014-10-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409824A (en) * | 2014-11-21 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | Broadband window type adjustable inverted cone electromagnetic structure |
| CN105680163A (en) * | 2016-02-06 | 2016-06-15 | 广东通宇通讯股份有限公司 | Edge-enhancement indoor coverage vertically-polarized omnidirectional 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 |
| WO2018166193A1 (en) * | 2017-03-14 | 2018-09-20 | 昆山瀚德通信科技有限公司 | Ceiling antenna |
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2014
- 2014-04-12 CN CN201420191647.2U patent/CN203871465U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409824A (en) * | 2014-11-21 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | Broadband window type adjustable inverted cone electromagnetic structure |
| CN104409824B (en) * | 2014-11-21 | 2017-05-10 | 中国电子科技集团公司第二十研究所 | Broadband window type adjustable inverted cone electromagnetic structure |
| CN105680163A (en) * | 2016-02-06 | 2016-06-15 | 广东通宇通讯股份有限公司 | Edge-enhancement indoor coverage vertically-polarized omnidirectional ceiling antenna |
| CN105680163B (en) * | 2016-02-06 | 2018-11-09 | 广东通宇通讯股份有限公司 | A kind of vertically polarized omnidirectional ceiling mount antenna of edge enhancement type in-door covering |
| 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 |
| WO2018166193A1 (en) * | 2017-03-14 | 2018-09-20 | 昆山瀚德通信科技有限公司 | Ceiling antenna |
| CN106785380B (en) * | 2017-03-14 | 2018-09-25 | 昆山瀚德通信科技有限公司 | Ultra wide band ceiling mount antenna |
| US11411294B2 (en) | 2017-03-14 | 2022-08-09 | Kunshan Hamilton Communication Technology Co., Ltd | Ceiling antenna |
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