CN106450693A - Indoor all-around ceiling antenna - Google Patents
Indoor all-around ceiling antenna Download PDFInfo
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- CN106450693A CN106450693A CN201610876884.6A CN201610876884A CN106450693A CN 106450693 A CN106450693 A CN 106450693A CN 201610876884 A CN201610876884 A CN 201610876884A CN 106450693 A CN106450693 A CN 106450693A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention discloses an indoor all-around ceiling antenna. The indoor all-around ceiling antenna comprises four single conical units which are arranged in a split manner and arranged in a circumference direction, and a feeding base connected with the four single conical units, wherein each single conical unit comprises a conical structure and a right-angle loading unit; the conical structure comprises two conical walls which are in mirror symmetry at a slant angle of 45 degrees and are connected; each conical wall is formed by bending a right-angle polygonal plate along a right-angle edge parallel to the vertical direction; the two conical walls are symmetrical along a slant angle of 45 degrees and are connected into one body along the right-angle edge; after the two conical walls are bent, the top ends are surrounded to form a quadrangle with an opening; and a feeding cable is connected with the feeding base. Compared with a conventional single conical all-round ceiling antenna, the indoor all-around ceiling antenna is higher in width, all-around property, edge gain enhancement, in-band covering consistency, impedance matching and efficiency, lower in profile and smaller in dimensions.
Description
【Technical field】
The present invention relates to the communications field, especially relate to a kind of indoor edges cover enhancement mode all-around top absorbing antenna.
【Background technology】
At present, the mankind have entered the information age comprehensively, obtain information and become the indispensable composition of people's daily life
Part.Mobile communication is with its distinctive convenience, it has also become people obtain information and the major way communicating with one another whenever and wherever possible.
Antenna is then the crucial subassembly of wireless communication system, and its performance is good and bad is conclusive on the impact of whole system.With
The development of mobile communication technology, the indoor environment such as family, office, market, terminal, classroom, library become traffic and
The hot spot region of data traffic.Outdoor macro base station owing to considering coverage, addressing, the practical factor such as cost, antenna size is big,
Gain is high, power is big, antenna height is high in transmitting, to realize that signal wide area covers continuously, is but difficult to carry out interior of building deeply
Spend, accurately cover.Naturally, outdoor base station miniaturization rear portion is deployed on building various places inside by people, defines indoor distributed
Covering system.Considering the aspect factors such as capacity, addressing, cost, multi-standard (GSM 2G/ must be supported in Fen little base station, room
CDMA-3G/LTE-4G), full frequency band (0.80-0.96GHz/1.71-2.70GHz), and horizontal plane need to cover large area.It is subject to
Being formed on installation site, room divided antenna generally has orientation wall hanging and the big class of omnidirectional ceiling two.It is more difficult technically to realize due to multiband,
Two class antennas are usually designed to broadband.Ceiling mount antenna is installed on floors ceilings, it is desirable to directional diagram is in the orientation at the different elevations angle
Must be uniform omnidirectional (out-of-roundness) in face, and low angle of depression direction still needs to keep higher gain, such guarantee covers relatively
Big scope.Additionally, it is contemplated that user's vision and impression, the suitable small size of ceiling mount antenna and low section.
Summary requires, single cone is the geometry being suitable for design all-around top absorbing antenna, and it has broadband, omni-directional
Feature, and height relatively be only biconical antenna half.But, owing to monocone antenna is that the inclination underarm of bipyramid is become flat
The reason on straight floor, its high frequency greatest irradiation direction can upwarp bigger angle, cause low elevation gain relatively low, and low frequency is maximum
Gain is then in the horizontal direction as biconical antenna.This can cause the little phenomenon of low frequency coverage width, high frequency coverage.
Although, low-and high-frequency coverage can be made more consistent by increasing network design density, but construction cost can be multiplied.
Therefore, the edges cover effect of all-around top absorbing antenna strengthens the key becoming solution problem.Conventional omnidirectional ceiling monocone antenna is adopted
With flat disks floor the 120th, cup-shaped cone 110 and short circuit branch 130, as shown in Fig. 2 (a), 2 (b), its low elevation gain
Low, azimuth plane circularity difference.
For above-mentioned application scenarios, a kind of full frequency band of design, omni-directional, edge gain strengthen, the interior coverage of band is consistent,
High efficiency, miniaturization, low section, the single polarization all-around top absorbing antenna of low cost seem very necessary.
【Content of the invention】
It is an object of the invention to provide a kind of full frequency band, omni-directional, edge gain to increase for indoor distributed covering system
By force, in band, coverage is consistent, high efficiency, miniaturization, low section, the indoor all-around top absorbing antenna of low cost.
For realizing the object of the invention, provide techniques below scheme：
The present invention provides a kind of indoor all-around top absorbing antenna, and it includes four split type list cones arranging and circumferentially arranging
Unit, and connect these four single feed bases boring unit；Each described single cone unit includes cone structure；This cone is tied
Structure includes the cone wall that two specular arrange and are connected with each other, and each cone wall is parallel with vertical direction by orthogonal plate edge
Right-angle side direction bending forming, two cone walls are integrally connected along this right-angle side；After two cone wall bendings, top has enclosed out
The quadrangle of mouth；Feeder cable connects feed base.
The indoor all-around top absorbing antenna of the present invention uses four split type list cone unit arranged together, by feed base
Being connected together, the cone structure of this list cone unit bends figuration continuously, thus obtains and be better than the suction of conventional Dan Zhui omnidirectional
The top broadband property of antenna, omni-directional, edge gain strengthen, in band covering-ties uniformity, good impedance matching, and low section and
Small size.
Preferably, each of this cone structure bores wall by orthogonal plate along the 90 ° of bendings of straight parallel arm of angle direction secondary
With 45 ° of bending formings, so latter two cone 45 ° of oblique specular of wall arrange and are connected with each other and are built into this vertebral body structure.
Preferably, this orthogonal plate hypotenuse is continually varying non-rectilinear.Preferably, this right angle triangle includes tab, should
Right angle triangle occurs at tab along 45 ° of bendings in straight parallel arm of angle direction.
Preferably, these four single cone cell geometry are symmetrical arranged with regard to ± 45 ° of oblique lines.
Preferably, the cone wall top of this vertebral body structure is provided with depression down.This sunk structure can extend current path, from
And reduce operating frequency.
Preferably, this indoor all-around top absorbing antenna farther includes right angle loading unit, and this right angle loading unit includes two
Individual loading piece, this loading piece vertically places and makees snakelike bending, and its bending outline is right angled triangle, the loadings of two bendings
Piece is arranged along the hypotenuse specular of this right angled triangle, and this right angle loading unit is carried in the top of described cone structure, and
And in the outside of this cone structure, angular point portions is linked together.This top loading structure Main Function is to reduce work frequency
Rate, it is possible to make the low elevation direction of greatest irradiation deflection.
Preferably, this loading piece bending outline is equilateral right angled triangle.
Preferably, the both sides of the edge of this vertebral body structure are loaded with horizontal stub.
Preferably, this horizontal stub is provided with multiple, and its width is vertically arranged, and laterally staggered is carried in this cone
The differing heights position of structure both sides of the edge.Preferably, the length of the plurality of horizontal stub is different, as required, may be configured as
The length of the horizontal stub from top to bottom arranged is gradually reduced.
Preferably, this feed base is rounding stage body, and its top offers cruciform groove, and these four single cone unit connect
In this cruciform groove, there is the circular hole running through up and down at this feed base center, and feeder cable inner wire passes through this circular hole and is connected to
Feed base upper surface.
Preferably, this indoor all-around top absorbing antenna has farther included floor, is provided with power feed hole in the middle of this floor, this feed
Base and single cone unit are arranged on floor.
Preferably, this floor, feed base, four single center superpositions boring unit.
Preferably, this floor is loaded with L-shaped stub, bottom this L-shaped stub, is connected as stub array by loaded ring.
Preferably, described L-shaped stub quantity N >=3 (N=3,4,5,6,7,8 ... .), and be evenly spaced on loaded ring,
Stub is inverted L-shaped, and top is then connected as one by loaded ring towards inner bending, bottom.
Above-mentioned at cone structure top-loaded right angle loading unit, at the horizontal stub of side loading, and load on floor
Inverted L-shaped stub, all make to which give be better than the broadband property of conventional single cone all-around top absorbing antenna, omni-directional, edge gain strengthen,
Covering-ties uniformity in band, and low section and small size.
Preferably, this floor is circular or square, and this loaded ring is annular or square frame-shaped, accordingly plate shape.
Preferably, feeder cable outer conductor is connected on floor, and inner wire is connected to feed base upper surface.
Preferably, this indoor all-around top absorbing antenna farther includes the felt pad being arranged between floor and feed base
Block.
Preferably, this floor, cross-over block, stub array, feed base, feeder cable, four single centers boring unit
Overlap, thus ensure to carry interior directionality unanimously circle symmetry.
Preferably, this feeder cable uses with SMA, BNC, TNC, 50 Ω standard coaxial lines of N-type connector.50 Ω feeds
After coaxial line passes through floor power feed hole, its outer conductor connects floor, and inner wire then passes through cross-over block and feed base upward, and
It is connected with feed base on top.
Preferably, this list cone unit, right angle loading unit, horizontal stub, floor, L-shaped stub and feed base are all selected
Metal good conductor material, such as red copper (fine copper), alloyed copper (such as brass), fine aluminium etc..
Preferably, this cross-over block material is the common vehicle materials such as PVC, PC, ABS, PTFE.
Contrast prior art, the present invention has the following advantages：
Comprehensive monocone antenna pluses and minuses, the present invention devises a kind of modified monocone antenna uniquely, i.e. on straight floor
Inner side along the circumferential direction loads four inverted L-shaped stubs；The taper radiant body on top is become split type Unit four, and respectively to it
Carry out top-loaded with realize miniaturization；Carry out continuous geometry bending figuration simultaneously to the edge of unit, and load level
Stub, it is achieved thereby that the miniaturization of single cone ceiling mount antenna and edges cover effect strengthen.Make greatest irradiation in monocone antenna band
Direction is horizontally directed all the time, and owing to vertical plane beam angle is wider, gain slowly declines behind deviation greatest irradiation direction,
So low elevation direction gain remains to keep high value, thus in ensureing full frequency band, coverage is roughly the same.
Present invention design achieves indoor ceiling aerial impedance matching good in 0.80-2.70GHz ultrabroad band, reason
Think that omni-directional, vertical polarization, edges cover effect strengthen, coverage is consistent in band, high efficiency, and small size and low cut open
Face, is the ideal monopole omnidirectional antenna scheme of a kind of applicable in-door covering.In addition, the method also has thinking novelty, principle
The features such as clearly, method is pervasive, realization is simple, design and improvement for Dual-polarization ceiling antenna are also to be suitable for and effective.
【Brief description】
The schematic diagram of the rectangular coordinate system definition that Fig. 1 is used by antenna model；
The front view of the geometrical model for conventional single cone all-around top absorbing antenna for the Fig. 2 (a)；
The stereogram of the geometrical model for conventional single cone all-around top absorbing antenna for the Fig. 2 (b)；
Fig. 3 (a) is the orthogonal plate schematic diagram building cone structure in the present invention；
Fig. 3 (b) is this orthogonal plate bending sketch map；
Fig. 3 (c) is that in the present invention, vertebral body structure is bent the oblique symmetrical structure of polygonal panel+45 ° by the two of Fig. 3 (b)
Schematic diagram；
Fig. 3 (d) for being thickeied the cone structure schematic diagram of gained by Fig. 3 (c)；
Fig. 4 (a) is the top view of right angle loading unit in the present invention；
Fig. 4 (b) is the stereogram of right angle loading unit in the present invention；
Stereogram when Fig. 5 (a) is that in the present invention, right angle loading unit loads on cone structure；
Top view when Fig. 5 (b) is that in the present invention, right angle loading unit loads on cone structure；
Fig. 6 (a) is the perspective view of the list cone unit being provided with right angle loading unit and horizontal stub in the present invention；
Fig. 6 (b) is the stereogram of the list cone unit being provided with right angle loading unit and horizontal stub in the present invention；
Fig. 7 (a) is that in the present invention, four single cone unit are arranged together and load the front view of horizontal stub；
Fig. 7 (b) is that in the present invention, four single cone unit are arranged together and load the top view of horizontal stub；
Fig. 8 (a) is the top view feeding base in the present invention；
Fig. 8 (b) is the perspective view feeding base in the present invention；
Fig. 8 (c) is that in the present invention, the top view that unit arrangement is connected to feed base bored by four lists；
Fig. 9 (a) is the top view of stub array in the present invention；
Fig. 9 (b) is the side view of stub array in the present invention；
Fig. 9 (c) is the stereogram of stub array in the present invention；
Fig. 9 (d) is that in the present invention, stub array is arranged at floor and is provided with the top view of described feed base；
Figure 10 (a) is the perspective view of the complete model figure of the indoor all-around top absorbing antenna of the present invention；
Figure 10 (b) is the front view of the complete model figure of the indoor all-around top absorbing antenna of the present invention；
Figure 10 (c) is the top view of the complete model figure of the indoor all-around top absorbing antenna of the present invention；
Figure 11 is the indoor all-around top absorbing antenna input impedance Z of the present inventioninFrequency characteristic；
Figure 12 is the reflectance factor of the indoor all-around top absorbing antenna of the present invention | S11| curve；
Figure 13 is the standing-wave ratio VSWR curve of the indoor all-around top absorbing antenna of the present invention；
Figure 14 is each frequency E-face (vertical plane) normalized gain directional diagram of the indoor all-around top absorbing antenna of the present invention；
Figure 15 (a)～15 (c) is H-face at different Theta values for each frequency of the indoor all-around top absorbing antenna of the present invention
(azimuth plane) normalized gain directional diagram；
Figure 16 be the indoor all-around top absorbing antenna of the present invention band in E-face half-power beam width with frequency f change curve；
Figure 17 is that the maximum gain elevation angle of the indoor all-around top absorbing antenna of the present invention is with frequency f change curve；
Figure 18 is that the maximum gain of the indoor all-around top absorbing antenna of the present invention is with frequency f change curve；
Figure 19 is the efficiency eta of the indoor all-around top absorbing antenna of the present inventionAWith frequency f change curve.
【Detailed description of the invention】
Refer to Fig. 1, Fig. 3 (a)～10 (c), it is contemplated that the indoor distributed system for cellular mobile communication provides
A kind of full frequency band, omni-directional, edge gain strengthen, coverage is consistent in band, high efficiency, miniaturization, low section, low cost
Single polarization all-around top absorbing antenna, and provide effective reference method for indoor Dual-polarization ceiling antenna optimization design.
The indoor all-around top absorbing antenna of the present invention includes four split type list cone unit 200 arranging and circumferentially arranging, with
And connecting these four single feed bases 300 boring unit, each described single cone unit includes vertebral body structure 210, and this centrum is tied
Structure includes the cone wall that two specular arrange and connect, as shown in Fig. 3 (a), each cone wall by orthogonal plate along parallel
Right-angle side direction secondary 90 ° bending and 45 ° of bending formings, this orthogonal plate inclined-plane is continually varying non-rectilinear,
This orthogonal plate includes tab 231, and this orthogonal plate is sent out at tab along 45 ° of bendings in straight parallel arm of angle direction
Raw, two cone walls are integrally connected along this right-angle side, and after two cone wall bendings, top encloses the quadrangle of opening, this four lists
Cone cell geometry is symmetrical arranged with regard to ± 45 ° of oblique lines.The cone wall top of this vertebral body structure is provided with depression 211, and this depression is tied
Structure can extend current path, thus reduces operating frequency.
This list cone unit 200 also includes right angle loading unit 220, and this right angle loading unit includes that two load piece 221, should
Loading piece vertically place and make snakelike bending, its bending outline is equilateral right angled triangle, and the loading piece edge of two bendings should
The hypotenuse specular of right angled triangle is arranged, and this right angle loading unit 220 is carried in the top of described vertebral body structure 210, and
And both tops are concordant, in the outside of this vertebral body structure 210, angular point portions is linked together, as shown in Fig. 5 (b), junction
It is positioned at this tab 231.This top loading structure Main Function is to reduce operating frequency, it is possible to make the low elevation angle side of greatest irradiation deflection
To.
Being loaded with multiple horizontal stub 212 on the both sides of the edge of this vertebral body structure 210, its width edge is vertically arranged, and horizontal
To the staggered differing heights position being carried in this vertebral body structure 210 both sides of the edge.The length of the plurality of horizontal stub is different, according to
Needing, the length of horizontal stub 212 being set to from top to bottom be arranged is gradually reduced, as shown in 6 (a) and 6 (b).
Referring to Fig. 8 (a)～8 (c), this feed base 300 is rounding stage body, and its top offers cruciform groove 310,
These four single cone unit are connected to this cruciform groove, and there is the circular hole 320 running through up and down at this feed base center, in feeder cable
Conductor passes through this circular hole and is connected to feed base upper surface.
This indoor all-around top absorbing antenna has farther included floor 400, is provided with power feed hole in the middle of this floor, this feed base
300 and single cone unit 200 be arranged on floor 400, and this floor, feed base, four single center superpositions boring unit.
Refer to Fig. 9 (a)～9 (d), this floor is loaded with L-shaped stub 420, bottom this L-shaped stub, pass through loaded ring
410 are connected as stub array.Described L-shaped stub quantity N >=3 (N=3,4,5,6,7,8 ... .), and it is evenly spaced in loaded ring
On, stub is inverted L-shaped, and top is then connected as one by loaded ring towards inner bending, bottom.In the present embodiment, this floor 400 is
Circle, this loaded ring 410 is annular.
It is additionally provided with cross-over block between floor and feed base.
The feeder cable 500 of the indoor all-around top absorbing antenna of the present invention uses 50 Ω feeding coaxial lines to pass through floor power feed hole
After, its outer conductor connects floor 400, and inner wire 510 then passes through cross-over block and feed base 300 upward, and in top and feedback
Electricity base connects, as shown in Figure 10 (b).This feeder cable uses SMA, BNC, TNC, 50 Ω standard coaxial lines of N-type connector.
This floor the 400th, cross-over block, stub array, feed base the 300th, feeder cable the 500th, four single cone unit 200
Center superposition, thus ensure to carry interior directionality unanimously circle symmetry.
This single cone unit the 200th, right angle loading unit the 220th, horizontal stub the 212nd, floor the 400th, L-shaped stub 420 and the feed end
Seat 300 all selects metal good conductor material, such as red copper (fine copper), alloyed copper (such as brass), fine aluminium etc..This cross-over block material is
The common vehicle materials such as PVC, PC, ABS, PTFE.
Incorporated by reference to refering to Fig. 1, Fig. 3 (a)～10 (c), the mode that this indoor all-around top absorbing antenna builds uses shown in Fig. 1
Model is set up in rectangular coordinate system definition, specifically,
Step one, sets up rectangular coordinate system at horizontal plane XOY, sees Fig. 1；
Step 2, in XOZ plane, right angled triangle loads piece, namely described orthogonal plate, carries out even at hypotenuse
Continuous bending figuration, and make top right-angle side part towards lower recess, extending current path, thus reduces operating frequency, such as Fig. 3
Shown in (a)；Then, piece double 90 ° of bendings and 45 ° of bendings inwardly will be loaded, enter along+45 ° of directions after bending is good
The oblique specular of row replicates and simultaneously merges two parts, as shown in Fig. 3 (b), 3 (c), then loading piece is become have certain thickness
Conical element, as shown in Fig. 3 (d), namely constructs described vertebral body structure 210；
Step 3, at XOY plane, by a long generous respectively Ls×Ws×TsLoading piece 221 uprightly place, width
In Z-direction, length and thickness are then respectively in X-axis and Y direction；Loading piece is bent repeatedly along its length continuously, construction
Become a hypotenuse to be parallel to the right angled triangle in+45 ° of directions, then carry out symmetric replication along+45 ° of directions and merge into one directly
Angle loading unit 220, is shown in shown in Fig. 4 (a), 4 (b)；
Step 4, by the coordinate system alignment of step 3 and step 2, then by right angle loading unit 220 level of step 3
Being placed into vertebral body structure 210 top of step 2, making both tip positions keep concordant, their outside is to angular point portions then
Linking together, seeing shown in Fig. 5 (a), 5 (b), it is to reduce operating frequency that this top loads Main Function, it is possible to make maximum spoke
Penetrate the low elevation direction of deflection；
Step 5, is loaded with on the top of step 4 on vertebral body structure 210 both sides of the edge of right angle loading unit 220, hands over
Four horizontal stubs 212 that wrong loading length increases successively, stub width in the vertical direction, as shown in Fig. 6 (a), 6 (b), structure
Build up single cone unit 200；
The list cone unit 200 of step 5 is become four cell arrays circumferentially arranging, i.e. split type Unit four by step 6
Cone, as shown in Fig. 7 (a), 7 (b)；
Step 7, the feed base 300 of one rounding stage body of design, in order to the split type four unit cones of step 6 are existed
Their bottom connects as one；Feed base 300 top has cruciform groove 310, and there is the circular hole running through up and down at center
320, in order to feeder cable 500 inner wire 510 passes through, as shown in Fig. 8 (a), 8 (b)；
Step 8, by the cruciform groove 310 of the feed base of step 7 upward, buckles at the bottom of four unit cones of step 6
Both are simultaneously connected as one by portion, as shown in Fig. 8 (c)；
Step 9, arranges L-shaped stub 420 on loaded ring 410 thus builds a L-shaped stub array towards inner bending,
And it is become circumferentially arrange, then it is positioned over one heart circular floor 400 upper surface, such as Fig. 9 (a), 9 (b) and 9 (c) institute
Show；
Step 10, opens a power feed hole at circular center, floor 400, after 50 Ω coaxial feed cables 500 pass through, and its outer conductor
Being welded on floor 400, inner wire 510 then extends and sequentially passes through the feed base center hole of felt pad and step 7 upward
320, it is welded to feed base 400 upper surface.So far, all parts of whole antenna all combine together, such as Figure 10
A (), 10 (b) and 10 (c) are shown.
The described structure of the indoor all-around top absorbing antenna of the present invention passes through 1) conventional circular list cone is designed to edge figuration divides
Unit bored by body formula four unit list；2) the cone structure top at single cone unit arranges right angle loading unit；3) in single cone cell side
Limit loads horizontal stub；4) inverted L-shaped stub array is loaded on floor；Thus obtain：First, it is better than conventional single cone omnidirectional ceiling sky
The broadband property of line, VSWR≤1.90 in 0.80-2.70GHz frequency band, (high frequency VSWR≤1.43)；2nd, preferable omni-directional, in band
Each elevation angle out-of-roundness is less than 0.9dBi；3rd, edge gain strengthens, (gain low frequency, high frequency are respectively 2dBi to the interior covering-ties uniformity of band
And 2.25-3.50dBi；-83 °, low-frequency gain elevation angle theta=72 °, half-power ripple is wide HPBW=104 °-110 °；High-frequency gain elevation angle theta
=40 °-49 °, half-power ripple is wide HPBW=40 °-58 °)；4th, less section height and overall dimension (board diameter-
0.48·λL× mono-cone width-0.184 λL× highly-0.192 λL)；5th, the operating efficiency (η close to ideal 100%A
>=99%).
Refer to following table.Table 1 is relative gain (normalizing to maximum) under different elevation angle theta for each frequency.By table
Knowing, in greatest irradiation angle both sides, low-and high-frequency gain all slowly declines and almost symmetry, and the low elevation direction yield value of medium and low frequency is still
Higher, highest frequency is then slightly lower.
Relative gain (normalizing to maximum) at different θ values for each frequency of table 1.
Figure 11 is the indoor all-around top absorbing antenna input impedance Z of the present inventioninFrequency characteristic, wherein, transverse axis (X-axis) is frequency
Rate f, unit is GHz；The longitudinal axis (Y-axis) is input impedance Zin, unit is Ω；Solid line represents real part Rin, dotted line represents imaginary part Xin.
Figure 12 is the reflectance factor of the indoor all-around top absorbing antenna of the present invention | S11| curve；Wherein, transverse axis (X-axis) is frequency f,
Unit is GHz；The longitudinal axis (Y-axis) is S11Amplitude | S11|, unit is dB.Being known by figure, antenna is real in 0.80-2.70GHz frequency range
Showed good impedance matching (| S11In |≤-10.13dB, 0.80-0.96GHz frequency range, | S11|≤-14.95dB).
Figure 13 is the standing-wave ratio VSWR curve of the indoor all-around top absorbing antenna of the present invention；Wherein, transverse axis (X-axis) is frequency f, single
Position is GHz；The longitudinal axis (Y-axis) is VSWR.Being known by figure, antenna achieves good impedance matching in 0.80-2.70GHz frequency range
(VSWR≤1.90, in 0.80-0.96GHz frequency range, VSWR≤1.44).
Figure 14 is each frequency E-face (vertical plane) normalized gain directional diagram of the indoor all-around top absorbing antenna of the present invention；Its
In, wherein, solid line represents f1=0.8GHz, dotted line represents f2=1.71GHz, dotted line represents f3=2.30GHz, chain-dotted line line table
Show f4=2.70GHz.Being known by figure, the maximum direction of low frequency occurs in Theta=72 °-83 °, high frequency then occur in Theta=40 °-
49°；There is in full frequency band preferable half-wave a period of time directional diagram.
Figure 15 is H-face (azimuth plane) normalizing at different Theta values for each frequency of the indoor all-around top absorbing antenna of the present invention
Change gain pattern；Wherein, solid line represents f1=0.8GHz, dotted line represents f2=1.71GHz, dotted line represents f3=2.30GHz,
Chain-dotted line line represents f4=2.70GHz.Figure 15 (a) represents Theta=30 °, and Figure 15 (b) represents Theta=60 °, Figure 15 (c) table
Show Theta=85 °.Known by figure, the out-of-roundness of Theta=30 °, 60 ° and 85 ° respectively 0.25dB, 0.40dB, 0.90dB with
In, each elevation angle all can meet isotropic requirement well.
Figure 16 be the indoor all-around top absorbing antenna of the present invention band in E-face half-power beam width with frequency f change curve；
Wherein, transverse axis (X-axis) is frequency f, and unit is GHz；The longitudinal axis (Y-axis) is beam angle, unit degree of being (deg).Known by figure, low frequency
Beam angle is at 104 °-110 °, and high frequency is at 40 °-58 °.
Figure 17 is that the maximum gain elevation angle of the indoor all-around top absorbing antenna of the present invention is with frequency f change curve；Wherein, transverse axis (X
Axle) it is frequency f, unit is GHz；The longitudinal axis (Y-axis) is beam angle, unit degree of being (deg).Being known by figure, low frequency maximum gain is faced upward
Theta=72 °-83 ° of angle, Theta=40 °-49 ° of the high frequency maximum gain elevation angle.
Figure 18 is that the maximum gain of the indoor all-around top absorbing antenna of the present invention is with frequency f change curve；Known by figure, low-frequency gain
G ≈ 2dBi, high-frequency gain G=2.25-3.5dBi.
Figure 19 is the efficiency eta of the indoor all-around top absorbing antenna of the present inventionAWith frequency f change curve.Whole band internal antenna efficiency
Close to preferable 100% (>=99%).
The full frequency band of all provable all-around top absorbing antenna of the present invention of data above and chart, omni-directional, edge gain strengthen,
The advantages such as the interior coverage of band is consistent, high efficiency, miniaturization, low section, low cost.
The foregoing is only presently preferred embodiments of the present invention, protection scope of the present invention is not limited thereto, any based on
Equivalent transformation in technical solution of the present invention belongs within scope.
Claims (10)
1. an indoor all-around top absorbing antenna, it is characterised in that it includes four split type list cones arranging and circumferentially arranging
Unit, and connect these four single feed bases boring unit；Each described single cone unit includes cone structure；This cone is tied
Structure includes the cone wall that two specular arrange and are connected with each other, and each cone wall is parallel with vertical direction by orthogonal plate edge
Right-angle side direction bending forming, two cone walls are integrally connected along this right-angle side；After two cone wall bendings, top has enclosed out
The quadrangle of mouth；Feeder cable connects feed base.
2. indoor all-around top absorbing antenna as claimed in claim 1, it is characterised in that each cone wall of this cone structure is by right angle
The polygon edge right-angle side direction parallel with vertical direction 90 ° of bendings and 45 ° of bending formings twice, so latter two cone wall
45 ° of oblique specular arrange and are connected with each other and are built into this vertebral body structure, and the cone wall top of this cone structure is provided with depression, should
Four single cone cell geometry are symmetrical arranged with regard to ± 45 ° of oblique lines.
3. indoor all-around top absorbing antenna as claimed in claim 1, it is characterised in that it farther includes right angle loading unit,
This right angle loading unit includes that two load piece, and this loading piece is vertically placed and makees snakelike bending, and its bending outline is right angle
Triangle, the loading piece of two bendings is arranged along the hypotenuse specular of this right angled triangle, and this right angle loading unit is carried in
The top of described cone structure, and in the outside of this cone structure, angular point portions is linked together.
4. the indoor all-around top absorbing antenna as described in any one of claims 1 to 3, it is characterised in that the both sides of this cone structure
Being loaded with horizontal stub on edge, this horizontal stub is provided with multiple, and its width is along being vertically arranged, and laterally staggered is carried in this vertebra
The differing heights position of body structure both sides of the edge.
5. the indoor all-around top absorbing antenna as described in any one of claims 1 to 3, it is characterised in that this feed base is rounding
Stage body, its top offers cruciform groove, and these four single cone unit are connected to this cruciform groove, and this feed base center has
The circular hole running through up and down, feeder cable inner wire passes through this circular hole and is connected to feed base upper surface.
6. the indoor all-around top absorbing antenna as described in any one of claims 1 to 3, it is characterised in that it has farther included ground
Plate, is provided with power feed hole in the middle of this floor, and this feed base and single cone unit are arranged on floor.
7. the indoor all-around top absorbing antenna as described in any one of claim 6, it is characterised in that be loaded with at least three on this floor
Individual L-shaped stub, is connected as stub array by loaded ring bottom this L-shaped stub, and this L-shaped stub is towards inner bending.
8. indoor all-around top absorbing antenna as claimed in claim 5, it is characterised in that feeder cable outer conductor is connected to floor
On, inner wire is connected to feed base upper surface.
9. the indoor all-around top absorbing antenna as described in any one of claims 1 to 3, it is characterised in that it farther includes to arrange
Cross-over block between floor and feed base.
10. the indoor all-around top absorbing antenna as described in any one of claim 7, it is characterised in that this floor, stub array, feedback
Electricity base, feeder cable, four single center superpositions boring unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876884.6A CN106450693B (en) | 2016-09-30 | 2016-09-30 | Indoor omnidirectional ceiling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876884.6A CN106450693B (en) | 2016-09-30 | 2016-09-30 | Indoor omnidirectional ceiling antenna |
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| CN106450693A true CN106450693A (en) | 2017-02-22 |
| CN106450693B CN106450693B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610876884.6A Active CN106450693B (en) | 2016-09-30 | 2016-09-30 | Indoor omnidirectional ceiling antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092297A (en) * | 2020-01-09 | 2020-05-01 | 上海交通大学 | Low-profile multi-frequency omnidirectional vertical polarization antenna |
| CN114824777A (en) * | 2022-05-24 | 2022-07-29 | 西安交通大学 | Arc-shaped circuit of mirror surface single cone antenna |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140561A1 (en) * | 2003-01-24 | 2005-06-30 | Marsan Lynn A. | Compact low RCS ultra-wide bandwidth conical monopole antenna |
| US20050156804A1 (en) * | 2003-12-11 | 2005-07-21 | Mohamed Ratni | Three-dimensional omni-directional antenna designs for ultra-wideband applications |
| CN101938036A (en) * | 2010-09-03 | 2011-01-05 | 泉州佳信天线有限公司 | Low-section broadband omnidirectional ceiling antenna |
| CN104901024A (en) * | 2015-03-25 | 2015-09-09 | 康凯科技（杭州）有限公司 | Multi-mode conical antenna system applied to WIFI |
| CN105098333A (en) * | 2015-08-17 | 2015-11-25 | 江苏省东方世纪网络信息有限公司 | Frequency modulation broadcast transmitting antenna |
| JP2016167680A (en) * | 2015-03-09 | 2016-09-15 | 株式会社日立国際八木ソリューションズ | Broadband non-directional antenna |
| CN206211015U (en) * | 2016-09-30 | 2017-05-31 | 广东通宇通讯股份有限公司 | Indoor all-around top absorbing antenna |
-
2016
- 2016-09-30 CN CN201610876884.6A patent/CN106450693B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140561A1 (en) * | 2003-01-24 | 2005-06-30 | Marsan Lynn A. | Compact low RCS ultra-wide bandwidth conical monopole antenna |
| US20050156804A1 (en) * | 2003-12-11 | 2005-07-21 | Mohamed Ratni | Three-dimensional omni-directional antenna designs for ultra-wideband applications |
| CN101938036A (en) * | 2010-09-03 | 2011-01-05 | 泉州佳信天线有限公司 | Low-section broadband omnidirectional ceiling antenna |
| JP2016167680A (en) * | 2015-03-09 | 2016-09-15 | 株式会社日立国際八木ソリューションズ | Broadband non-directional antenna |
| CN104901024A (en) * | 2015-03-25 | 2015-09-09 | 康凯科技（杭州）有限公司 | Multi-mode conical antenna system applied to WIFI |
| CN105098333A (en) * | 2015-08-17 | 2015-11-25 | 江苏省东方世纪网络信息有限公司 | Frequency modulation broadcast transmitting antenna |
| CN206211015U (en) * | 2016-09-30 | 2017-05-31 | 广东通宇通讯股份有限公司 | Indoor all-around top absorbing antenna |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114824777A (en) * | 2022-05-24 | 2022-07-29 | 西安交通大学 | Arc-shaped circuit of mirror surface single cone antenna |
| CN114824777B (en) * | 2022-05-24 | 2023-06-23 | 西安交通大学 | Arc-shaped circuit of mirror surface single cone antenna |
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| Publication number | Publication date |
|---|---|
| CN106450693B (en) | 2024-02-20 |
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