CN209448007U - A kind of communication antenna and its radiating element - Google Patents
A kind of communication antenna and its radiating element Download PDFInfo
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- CN209448007U CN209448007U CN201920114742.5U CN201920114742U CN209448007U CN 209448007 U CN209448007 U CN 209448007U CN 201920114742 U CN201920114742 U CN 201920114742U CN 209448007 U CN209448007 U CN 209448007U
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Abstract
A kind of communication antenna and its radiating element, the gradual change clearance groove for receiving and dispatching radiation signal is equipped on four angles of radiating element, two gradual change clearance grooves in diagonal line distribution are one group, two groups of orthogonal thereto arrangements of gradual change clearance groove, and it is fed respectively by two feed elements, the middle part of the radiating element is flat central platform, and the circumferential the same side of radiating element four digs to form flanging.Communication antenna includes reflecting plate and the radiating element for working in low frequency that is arranged on reflecting plate, and the central platform of radiating element is equipped with high frequency radiation element.The radiating element bore of the utility model is small, light-weight, can be substantially reduced the size of antenna, while can guarantee the radiance index of antenna again, meets customer need.It is small to high frequency polariton effect to apply to multifrequency antenna, is particularly suitable for the multifrequency antenna for base station of low frequency cell Yu high frequency unit nested groups battle array.
Description
Technical field
The utility model relates to a kind of communication antenna, specifically a kind of bowl-shape small-bore radiating element and application
The communication antenna of the radiating element.
Background technique
Radiating element is the major part for forming antenna, it can radiate and receive electromagnetic wave, to realize wireless communication.
Space diversity may be implemented in dual-polarization radiating unit, while can work under transmission duplex mode, greatly reduces the number of antenna
Amount and occupied space.The size of radiating element bore, the height of height directly affect the size of antenna size, and client is to day at present
The demand of linear dimension miniaturization is higher and higher, and the universal bore of existing radiating element is big, height is high, leads to antenna size mistake
Greatly, it is unable to satisfy customer demand.Therefore, how to reduce radiating element bore is current urgent problem.
Antonio Vivaldi (Vivaldi) antenna is a kind of improved form of linear gradient slot antenna, is one kind according to index shape
The end-fire travelling-wave aerial of formula gradual change, is generally made of printed circuit technique.Be in structure by from the narrow metal line of rabbet joint gradually
It changes to than the wider metal line of rabbet joint, and gradual change form makes exponentially to change, to be formed in signal transmitting terminal tubaeform
Shaped opening, for receiving or emitting electromagnetic wave.The different piece of the antenna line of rabbet joint receives respectively and emits the electromagnetism of different frequency
Wave signal.
Utility model content
Technical problem to be solved in the utility model is to overcome existing antenna radiation unit bore bigger than normal, in inner antenna
Occupied space is more, leads to the problem that antenna size is excessive, provides a kind of small-bore radiating element and the application radiating element
Communication antenna.
Used technical solution is the utility model to solve above-mentioned technical problem: a kind of radiation list of communication antenna
Member is equipped with the gradual change clearance groove for receiving and dispatching radiation signal, two gradual change clearance grooves being distributed in diagonal line on its four angles
It is one group, two groups of orthogonal thereto arrangements of gradual change clearance groove, and fed respectively by two feed elements, the middle part of the radiating element is
The flanging to be formed around central platform is dug in flat central platform, the circumferential the same side of radiating element four.
It is fixed between two neighboring flanging by the dieelctric sheet for being located at gradual change clearance groove opening.
The gradual change clearance groove includes slot on centrally located platform, the transition line of rabbet joint to connect with slot, Yi Jicong
The transition line of rabbet joint starts the tapered slot to extend outwardly and gap is gradually increased.
The radiating element is all around equipped with the window of engraved structure around central platform.
Part of the window of the engraved structure between adjacent gradual change clearance groove forms radiating element quadrangle respectively
Two outwardly extending arm structures are gradual change clearance groove between two arm structures.
The part that the window of the engraved structure is located on radiating element surrounding flanging makes width in the middle part of flanging be less than two sides
Width.
The central platform is surrounded by the fold piece turned down in the same direction with the flanging.
The upper and lower surface of the central platform is respectively equipped with feed pcb board, the feed pcb board on two sides give respectively two groups it is orthogonal
Gradual change clearance groove feed.
The one side of the central platform is equipped with terminated line pcb board.
A kind of communication antenna with the radiating element comprising reflecting plate and the work being arranged on the reflecting plate
In the radiating element of low frequency, high frequency radiation element is equipped in the central platform of the radiating element.
The reflecting plate is equipped with the low frequency array and multiple high frequency radiation element groups of multiple radiating element compositions
At HF array, part of or whole high frequency radiation elements are correspondingly arranged in the central platform of the radiating element.
The beneficial effects of the utility model are: the radiating element uses Vivaldi antenna principle, by deforming in level
Side is folded up a part of area, so that area occupied is reduced in horizontal direction, forms small-bore bowl-shape radiating element.It is this
Bowl-shape radiating element is since occupied space is smaller, in the case where antenna performance is constant, can reduce the size of antenna.
The middle part of radiating element is that central platform can be additionally mounted in the central platform when radiating element works in low frequency
High frequency radiation element realizes that low frequency cell is superimposed installation with the nesting of high frequency unit, to further decrease antenna size.
Meanwhile in the fixed adjacent flanging of gradual change clearance groove opening setting dieelctric sheet, reinforcing, radiative unit structure is steady
While qualitative, dieelctric sheet can play the role of coated by dielectric, guarantee radiance.
The bowl-shape radiating element of the utility model reduces the bore of radiating element, only 0.3-0.4 times operating wave
It is long.
On this basis, engraved structure all around is set around central platform by radiating element, retains portion thin as far as possible
Point, the coupling between high frequency unit and low frequency cell can be weakened, and play the role of mitigating radiating element weight.
Further, it in the fold piece of central platform surrounding setting fold, can be used as the boundary of center high frequency unit, adjust
The wave of high frequency radiation element is wide and cross polarization.
Therefore, it is small, light-weight to be mainly characterized by bore for the small-bore bowl-shape radiating element of the utility model, can significantly subtract
The size of miniature antenna, while can guarantee the radiance index of antenna again, it meets customer need.Apply to multifrequency antenna to high frequency
Radiating element influence is small, is particularly suitable for the multifrequency antenna for base station of low frequency cell Yu high frequency unit nested groups battle array.
Detailed description of the invention
Fig. 1 is the schematic diagram based on Wei Waer antenna.
Fig. 2 is the front schematic view of the utility model radiating element.
Fig. 3 is the reverse side schematic diagram of the utility model radiating element.
Fig. 4 is the embodiment schematic diagram that high frequency radiation element is arranged on the utility model radiating element.
Fig. 5 uses the multifrequency bandwidth antenna for base station first embodiment of the utility model radiating element.
Fig. 6 is the multifrequency bandwidth antenna for base station second embodiment with the utility model radiating element.
Marked in the figure: 1, central platform, 2, flanging, 3, gradual change clearance groove, 301, slot, 302, the transition line of rabbet joint, 303, gradually
Become the line of rabbet joint, 4, feed element, 5, dieelctric sheet, 6, window, 7, arm structure, 8, fold piece, 9, terminated line pcb board, 10, reflection
Plate, 11, high frequency radiation element.
H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 are high frequency radiation element；L1 ,L2, L3, L4,L5,
L6 is radiating element；B1,B2,B3,B4,B5, B6,B7,B8,B9,B10,B11,B12,B13,B14,B15,B16,B17,B18,
B19, B20 are high frequency radiation element；D1, D2, D3, D4, D5, D6 are radiating element.
Specific embodiment
The embodiments of the present invention is illustrated with reference to embodiments.
The radiating element of the utility model uses Vivaldi antenna principle, uses as shown in Figure 1, being equipped on its four angles
In the gradual change clearance groove 3 of transmitting-receiving radiation signal, two gradual change clearance grooves in diagonal line distribution are one group, two groups of gradual change clearance grooves
Orthogonal thereto arrangement.Dotted portion is turned up along figure, is reduced the horizontal area occupied, can be reduced the bore of radiating element, mouth
Diameter is 0.3-0.4 times operation wavelength.
Fig. 2 be in Fig. 1 along dotted portion turn up after the radiating element that is obtained by deformation, which is in bowl-shape knot
Structure, middle part is flat central platform 1, after edge is turned up, is formed in radiating element surrounding and is dug to the same side
Flanging 2 is gradual change clearance groove 3 between two neighboring flanging 2.
The gradual change clearance groove of two groups of quadrature arrangements is fed respectively by two feed elements 4, above and below the central platform 1
Feed pcb board, the feed element 4 of feed pcb board setting microstrip line form, the feed pcb board point on two sides can be respectively set in two sides
Not Gei two groups of orthogonal gradual change clearance grooves feeds, can avoid crossing elimination.The gradual change clearance groove 3 uses Vivaldi antenna
Principle, including the slot 301 on centrally located platform 1, the transition line of rabbet joint 302 that connects with slot 301, and from the transition line of rabbet joint
302 start the tapered slot 303 to extend outwardly and gap is gradually increased.It is attached that the feeding point of feed element is located at the transition line of rabbet joint 302
Closely, 301 form and dimension of slot of part and the subtended angle size of preceding part tapered slot 303 can phase intermodulation after change feeding point
Internode gap antenna feed impedance, to have the function that show bandwidth.Further, change feed element 4 on feed pcb board
Open circuit detail length, width, adjustable standing wave effect.The thickness for increasing feed pcb board, can also further increase band
It is wide.The specific size and feeder line form of gradual change clearance groove can refer to Vivaldi antenna principle, be not described in detail herein.
As shown in Fig. 2-4, dieelctric sheet 5, medium are provided in the opening of the gradual change clearance groove 3 of radiating element quadrangle
There is bayonet on piece 5, adjacent flanging 2 is fixed by the bayonet of dieelctric sheet 5, keeps radiative unit structure firm.Dieelctric sheet 5 is guaranteeing
There is coated by dielectric while gap size, by selecting different dielectric materials, adjusts the dielectric constant size of medium
The input impedance of radiating element can be made to change slowly with the variation of frequency, to play the work expanded bandwidth and adjust standing wave
With.
It is settable other in central platform 1 as shown in figure 4, the radiating element of the utility model is operable with low frequency
High frequency radiation element 11 realizes that high frequency unit is superimposed installation with the nesting of low frequency cell, to reduce antenna size.
As shown in Figures 2 and 3, the central platform 1 is set on one side there are two terminated line pcb board 9, matched line Road PCB
Microstrip line is set on plate 9, the feed demand of feed element 4 and high frequency radiation element 11 can be met.Change terminated line pcb board 9
The length and width of upper transmission line can further debug the standing wave of radiating element.
As shown in Fig. 2-4, the radiating element surrounding can do hollow metal processing, flat around center on radiating element
The window 6 of engraved structure is arranged in platform 1, and the part retained after hollow out is thin as far as possible, can not only weaken the coupling of high frequency and low frequency, but also can subtract
The weight of light radiating element.
The window 6 of the engraved structure can be opened in simultaneously on the planar section and flanging of radiating element, and window 6 is in radiating element
Part in plane between adjacent gradual change clearance groove, the hollow out make radiating element quadrangle respectively formed two it is outwardly extending
Arm structure 7 is gradual change clearance groove 3 between two arm structures.The window 6 of engraved structure is located at radiating element surrounding flanging 2
On part so that width in the middle part of flanging is less than two sides width, retain thinner part only in the center edge portion of flanging 2 to connect it
Both ends.
Further, as shown in Fig. 2-4, the central platform 1 is surrounded by the fold turned down in the same direction with the flanging 2
Piece 8.Four fold pieces 8 of surrounding surround central platform 1, as bowl-shape radiating element center high frequency unit boundary, adjust high frequency
The wave of unit is wide and cross polarization.Shown in fold piece 8 can be formed while radiating element surrounding hollow out, for example, by spoke
It is flipped up after penetrating a part cutting of unit surrounding, the part of fold forms fold piece 8, and the notch left then forms hollow out
Window 6.
When the radiating element of the utility model is applied to communication antenna, nested with the cooperation of high frequency radiation element it can install,
The assembly of radiating elements works in low frequency on the reflecting plate of communication antenna, and nesting is set in the central platform of radiating element
Set high frequency radiation element.
Multiple radiating elements and multiple high frequency radiation elements can form different arrays on reflecting plate, pass through difference
Group battle array mode form array, the communication antenna of available different performance.It is different according to specific group battle array mode, can by part or
Whole high frequency radiation elements are correspondingly arranged in the central platform of the radiating element.
Fig. 5 is to arrange with a kind of embodiment of the multifrequency bandwidth antenna for base station of the utility model radiating element for multifrequency two
Coaxial antenna for base station.Wherein H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 are high frequency radiation elements, and frequency range is
1710MHz ~ 2690 MHz, L1, L2, L3, L4, L5, L6 are as the radiating element for working in low frequency, and frequency range is
698 MHz ~960 MHz.Wherein, high frequency radiation element H1, H3, H5, H6, H8, H10 are nested in radiating element, reduce accounting
Space, other high frequency radiation elements are directly installed on reflecting plate.
Because the radiating element size bore of the utility model is much smaller compared to existing low frequency cell, and part high frequency list
Member is nested in low frequency cell, and the width of multifrequency antenna A only needs 466mm, can meet coaxial biserial multifrequency antenna for base station
Performance indicator.
Fig. 6 is with another embodiment of the multifrequency bandwidth antenna for base station of the utility model radiating element, and the antenna is high
Frequent section is four frequencies, and using four column side-by-side configuration group battle arrays, frequency range is the MHz of 1710MHz ~ 2690, and low frequency is double frequency, frequency
Range is the MHz of 698 MHz ~ 960, and low-and high-frequency unit uses nested type group battle array.Wherein, B1, B2, B3, B4, B5, B6, B7,
B8, B9, B10, B11, B12, B13, B14, B15, B16, B17, B18, B19, B20 are high frequency radiation elements, D1, D2, D3, D4,
D5, D6 are operate on the radiating element of low frequency.Wherein, B1, B3, B5, B6, B8 and B10 be nested in respectively D1, D2, D3, D4, D5,
In D6, the accounting space of radiation-curable unit substantially reduces the width of antenna, and width is only 476mm.
It can be substantially reduced using the multifrequency antenna for base station of novel small-bore bowl-shape radiating element disclosed by the utility model
The size of antenna, while it being able to satisfy the performance indicator of client again, it is particularly suitable for low frequency cell and high frequency unit nested groups battle array
Multifrequency antenna for base station.
Claims (10)
1. a kind of radiating element of communication antenna, it is characterised in that: be equipped on its four angles for receiving and dispatching radiation signal gradually
Varied clearance slot (3), two gradual change clearance grooves in diagonal line distribution are one group, two groups of orthogonal thereto arrangements of gradual change clearance groove, and by
Two feed elements (4) feed respectively, and the middle part of the radiating element is flat central platform (1), radiating element surrounding
The flanging (2) to be formed around central platform (1) is dug to the same side.
2. a kind of radiating element of communication antenna as described in claim 1, it is characterised in that: between two neighboring flanging (2)
It is fixed by the dieelctric sheet (5) for being located at gradual change clearance groove (3) opening.
3. a kind of radiating element of communication antenna as described in claim 1, it is characterised in that: the radiating element all around around
Central platform (1) is equipped with the window (6) of engraved structure.
4. a kind of radiating element of communication antenna as claimed in claim 3, it is characterised in that: the window of the engraved structure
(6) part between adjacent gradual change clearance groove makes radiating element quadrangle respectively form two outwardly extending arm structures
(7), it is between two arm structures gradual change clearance groove (3).
5. a kind of radiating element of communication antenna as claimed in claim 3, it is characterised in that: the window of the engraved structure
(6) being located at the part on radiating element surrounding flanging (2) makes width in the middle part of flanging be less than two sides width.
6. a kind of radiating element of communication antenna as claimed in claim 3, it is characterised in that: central platform (1) surrounding
Equipped with the fold piece (8) turned down in the same direction with the flanging (2).
7. a kind of radiating element of communication antenna as described in claim 1, it is characterised in that: the central platform (1) it is upper
Lower two sides is respectively equipped with feed pcb board, and the feed pcb board on two sides gives two groups of orthogonal gradual change clearance groove feeds respectively.
8. a kind of radiating element of communication antenna as described in claim 1, it is characterised in that: the one of the central platform (1)
Face is equipped with terminated line pcb board (9).
9. the communication antenna that one kind has any one of claim 1-8 radiating element, it is characterised in that: it includes reflection
Plate (10) and the radiating element for working in low frequency being arranged on the reflecting plate (10), in the center of the radiating element
Platform is equipped with high frequency radiation element.
10. communication antenna as claimed in claim 9, it is characterised in that: the reflecting plate (10) is equipped with multiple spokes
Penetrate the low frequency array of unit composition and the HF array of multiple high frequency radiation elements composition, part of or whole high frequency radiation members
Part is correspondingly arranged in the central platform of the radiating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920114742.5U CN209448007U (en) | 2019-01-23 | 2019-01-23 | A kind of communication antenna and its radiating element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920114742.5U CN209448007U (en) | 2019-01-23 | 2019-01-23 | A kind of communication antenna and its radiating element |
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| CN209448007U true CN209448007U (en) | 2019-09-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659674A (en) * | 2019-01-23 | 2019-04-19 | 广东通宇通讯股份有限公司 | A kind of communication antenna and its radiating element |
| CN114142212A (en) * | 2021-12-13 | 2022-03-04 | 江苏亨鑫科技有限公司 | Dual-frequency antenna array |
-
2019
- 2019-01-23 CN CN201920114742.5U patent/CN209448007U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659674A (en) * | 2019-01-23 | 2019-04-19 | 广东通宇通讯股份有限公司 | A kind of communication antenna and its radiating element |
| CN109659674B (en) * | 2019-01-23 | 2024-06-04 | 广东通宇通讯股份有限公司 | Communication antenna and radiation unit thereof |
| CN114142212A (en) * | 2021-12-13 | 2022-03-04 | 江苏亨鑫科技有限公司 | Dual-frequency antenna array |
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