CN208507942U - A kind of ultra wide band horizontally polarized omnidirectional antenna oscillator - Google Patents
A kind of ultra wide band horizontally polarized omnidirectional antenna oscillator Download PDFInfo
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- CN208507942U CN208507942U CN201820701322.2U CN201820701322U CN208507942U CN 208507942 U CN208507942 U CN 208507942U CN 201820701322 U CN201820701322 U CN 201820701322U CN 208507942 U CN208507942 U CN 208507942U
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Abstract
A kind of ultra wide band horizontally polarized omnidirectional antenna oscillator, equipped with a medium substrate, one point of three power splitter and three dipole antennas for waiting function separation structure is equipped on medium substrate, three dipole antennas are radially distributed around one point of three power splitter, three branches of one point of three power splitter are connect with three dipole antennas respectively, and a short-circuit line is connected on the interface point of three branches.Short-circuit line DC earthing can play the role of optimizing antenna S parameter, and the short-circuit line being grounded also makes antenna have the function of lightning protection in outdoor utility.The hollow hole being arranged on medium substrate is arranged feeding network when organizing on longitudinal axis gust for antenna oscillator, passes through a group horizontally polarized omnidirectional antenna for battle array high-gain.Due to the distinctive polarization mode of horizontal polarization and radiance, the feeding network arranged inside horizontal polarization oscillator can be ignored the influence very little of directional diagram and S parameter.
Description
Technical field
The utility model relates to a kind of antenna oscillator of mobile communication antenna, specifically a kind of ultra wide band horizontal polarization
Omnidirectional antenna oscillator.
Background technique
Currently, with the development of the communications industry, mobile communication has become most active and future industry, also to people's
Life brings great convenience.And with the continuous growth increased and mobile subscriber needs of mobile subscriber's quantity, to shifting
The requirement of dynamic communication network is higher and higher.As technology develops, although omnidirectional antenna had not had in the communications field is applied
It goes so important, but in mobile communication application, still plays the role of great.
In existing omni-directional base station antenna, polarization mode based on vertical polarization single polarization, rarely has horizontal polarization mostly.It hangs down
Although straight poliarizing antenna is easier to realize compared to horizontally-polarized antenna, to accomplish high-gain, the design of feeding network
Directional diagram can be seriously affected.Horizontal polarization is but avoided that high-gain omni-directional antenna because of feed due to its special polarization mode
Network causes directional diagram out-of-roundness to deteriorate.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of ultra wide band horizontally polarized omnidirectional antenna oscillators, improve
Antenna gain improves directional diagram out-of-roundness.
Used technical solution is the utility model to solve above-mentioned technical problem: a kind of ultra wide band is horizontally polarized omnidirectional
Antenna oscillator is equipped with a medium substrate, and one point of three power splitter and three that one is waited function separation structure are equipped on medium substrate
Dipole antenna, three dipole antennas are radially distributed around one point of three power splitter, and the three of one point of three power splitter
Branch is connect with three dipole antennas respectively, and the short-circuit line of a ground connection is connected on the interface point of three branches.
The length of the short-circuit line is a quarter of antenna wavelength.
It is located at the position between two adjacent dipoles on the medium substrate and is provided with one for wearing feedback
The hollow hole of electric unit.
Angle in three dipole antennas between two neighboring dipole antenna is 120 °.
The dipole antenna have two symmetrically arranged oscillator arms, two oscillator arms of same dipole antenna with
The same branch of one point of three power splitter connects.
The oscillator arms are connected from the straight line extended from one point of three power splitter on medium substrate to medium substrate periphery
Portion and the circumferential extensions that rectilinear connecting sections end is arranged in are constituted, the straight line in two oscillator arms of the same dipole antenna
Interconnecting piece is parallel to each other, and the extending direction of two circumferential extensions is away from each other.
The medium substrate is rounded, and the center of medium substrate, the circumferential direction in oscillator arms is arranged in one point of three power splitter
Extension is arranged along the circumferential edges of medium substrate.
The length of the oscillator arms is 0.48 times of antenna wavelength.
The medium substrate is pcb board, with a thickness of 1.5mm.
The beneficial effects of the utility model are: connecting a short-circuit line on the interface point of one point of three power splitter, three branches
DC earthing can play the role of optimizing antenna S parameter, and the short-circuit line being grounded also makes antenna tool in outdoor utility
There is the function of lightning protection.
The hollow hole being arranged on medium substrate wears the feeds list such as feeding network when organizing on longitudinal axis gust for antenna oscillator
Member passes through a group horizontally polarized omnidirectional antenna for battle array high-gain.Due to the distinctive polarization mode of horizontal polarization and radiance, in water
The feeding network arranged inside mean pole oscillator can be ignored the influence very little of directional diagram and S parameter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model horizontally polarized omnidirectional antenna oscillator.
Marked in the figure: 1, medium substrate, 2, one points of three power splitters, 201, branch, 3, dipole antenna, 301, oscillator arms,
3011, rectilinear connecting sections, 3012, circumferential extensions, 4, short-circuit line, 5, hollow hole.
Specific embodiment
Clear, complete explanation is carried out to the technical solution of the utility model below in conjunction with the drawings and the specific embodiments.
The technical solution technical problems to be solved institute that particular content listed by following example is not limited to claim record is necessary
Technical characteristic.Meanwhile described enumerate is a part that embodiment is only the utility model, rather than whole embodiments.
The ultra wide band horizontally polarized omnidirectional antenna oscillator of the utility model is equipped with a medium substrate 1, on medium substrate 1
One point of three power splitter 2 and three dipole antennas 3 equipped with an equal function separation structure.Three dipole antennas 3 surround this point
The setting of three power splitters 2, and be radially distributed.One point of three power splitter 2 have a main road and three branches, therein three
Branch 201 is connect with three dipole antennas 3 respectively, to three 3 equal amplitude feeds of dipole antenna.
As shown in Figure 1, the main road end of one point of three power splitter 2, that is, one is connected on the interface point of three branches 201
Short-circuit line 4, the end ground connection of the short-circuit line 4, it can so that antenna is accomplished lightning protection in outdoor utility, it can also be to antenna
The optimization of S parameter has certain effect.
The length of the short-circuit line 4 is preferably a quarter of antenna wavelength.
The medium substrate 1 can use pcb board, and one point of three power splitter 2, dipole antenna 3 and short-circuit line 4 can be adopted
It is arranged on medium substrate 1 with microstrip line form.The end of short-circuit line 4 is grounded by the ground plane of pcb board.
The used preferred dielectric constant of pcb board is 4.4, with a thickness of the FR4 plate of 1.5mm.
Three dipole antennas 3 surround the same center of circle, are uniformly distributed in a circumferential direction, i.e. three dipoles
Angle in antenna 3 between two neighboring dipole antenna in same level is 120 °.It will be understood by those skilled in the art that
Angle described herein refers to the angle of dipole antenna circle distribution, the central angle of usually two middle lines.
As shown in Figure 1, the dipole antenna 3 has two symmetrically arranged oscillator arms 301, same dipole antenna
Two oscillator arms 301 connect with the same branch 201 of one point of three power splitter 2, from the branch 201 simultaneously to dipole
Two oscillator arms 301 of antenna are fed.
In the embodiment shown in fig. 1, the oscillator arms 301 are by rectilinear connecting sections 3011 and 3012 liang of circumferential extensions
Part is constituted.Wherein, rectilinear connecting sections 3011 extend from one point of three power splitter 2 on medium substrate 1 to medium substrate periphery,
Extending direction is the radial direction for the circumference that three dipole antennas 3 are surrounded.The branch of one point of three power splitter 2 and the straight line
Interconnecting piece 3011 connects.
Circumferential extensions 3012, which is arranged in the end of rectilinear connecting sections and is connected thereto, to be integrated, circumferential extensions 3012 with
Extend after forming a turnover between rectilinear connecting sections to side.
In embodiment illustrated in fig. 1, the medium substrate 1 is rounded.Medium substrate 1 is arranged in one point of three power splitter 2
Center, the rectilinear connecting sections 3011 in oscillator arms 301 extend to the circumferential edges of medium substrate 1 from one point of three power splitter 2, then
It transfers by one, forms the circumferential extensions 3011 being arranged along the circumferential edges of medium substrate 1.
Two oscillator arms 301 in the same dipole antenna 3 are symmetrically arranged, in two oscillator arms 301 straight lines
Interconnecting piece 3011 is parallel to each other, and two circumferential extensions 3012 of two oscillator arms 301 are to far from two rectilinear connecting sections 3011
Direction extend, i.e., the extending direction of two circumferential extensions 3012 is away from each other.
In three dipole antennas 3, the length of every oscillator arms 301 is about 0.48 times of antenna wavelength.The above institute
The antenna wavelength stated is the corresponding wavelength of center of antenna working frequency.
The horizontally polarized omnidirectional antenna for obtaining high-gain needs multiple horizontally polarized omnidirectional antenna oscillators in y direction
Array is set up on (i.e. perpendicular to the direction of horizontally polarized omnidirectional antenna oscillator), thus necessarily will appear the transmission network on the longitudinal axis
Network.The utility model is provided with one on the medium substrate 1, in the position being located between two adjacent dipoles 3
For wearing the hollow hole 5 of feed element.When setting up array, fixation kit can be worn in the hollow hole, in order to fixation
Multiple horizontally polarized omnidirectional antenna oscillators.The feed element being threaded through in hollow hole can be arranged in the fixation kit simultaneously, feedback
Electric unit includes feeding network, connect with one point of three power splitter in multiple horizontally polarized omnidirectional antenna oscillators, utilizes feed
Network is fed to multiple horizontally polarized omnidirectional antenna oscillators in array.
Horizontally polarized omnidirectional antenna oscillator goes out to arrange in the feeding network when y direction is set up in hollow hole, due to water
The distinctive polarization mode of mean poleization and radiance, the feeding network arranged inside horizontal polarization oscillator join directional diagram and S
Several influence very littles, can be ignored.
The present embodiment selection diameter is about the pcb board of 192mm as medium substrate, and antenna frequencies are 698MHz-
960MHz, the oscillator arms of three dipole antennas are about 0.48 times of central wavelength, and short-circuit line length is a quarter central wavelength.
Single horizontal polarization magnon gain >=2dBi, out-of-roundness are to meet customer demand, VSWR≤1.35 within ± 1dB.
The technical concept and its core of the utility model are merely used to help understand to the explanation of specific embodiment above
Thought is described and illustrated technical solution although there is used herein specific preferred embodiments, should not be construed as
Limitation to the utility model itself.Those skilled in the art, can be right under the premise of not departing from the utility model technical concept
It makes a variety of changes in the form and details.These change or replacement readily occurred in should all be covered in the utility model
Protection scope within.
Claims (9)
1. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator, it is characterised in that: a medium substrate (1) is equipped with, in medium base
Plate (1) is equipped with one point of three power splitter (2) and three dipole antennas (3) for waiting function separation structure, three dipole antennas
(3) be radially distributed around one point of three power splitter (2), three branches (201) of one point of three power splitter (2) respectively with
Three dipole antenna (3) connections, and the short-circuit line (4) being grounded is connected on the interface point of three branches (201).
2. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator as described in claim 1, it is characterised in that: the short-circuit line
(4) length is a quarter of antenna wavelength.
3. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator as described in claim 1, it is characterised in that: in the medium base
It is located at the position between two adjacent dipoles (3) on plate (1) and is provided with one for wearing the hollow hole of feed element
(5).
4. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator as described in claim 1, it is characterised in that: three idols
Angle in pole sub-antenna (3) between two neighboring dipole antenna is 120 °.
5. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator as described in claim 1, it is characterised in that: the dipole
Antenna (3) has two symmetrically arranged oscillator arms (301), two oscillator arms (301) and described one of same dipole antenna
Divide same branch (201) connection of three power splitters (2).
6. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator as claimed in claim 5, it is characterised in that: the oscillator arms
(301) from rectilinear connecting sections (3011) from one point of three power splitter (2) on medium substrate (1) to medium substrate periphery that extend from and
The circumferential extensions (3012) that rectilinear connecting sections end is arranged in is constituted, two oscillator arms of the same dipole antenna (3)
(301) rectilinear connecting sections (3011) in are parallel to each other, and the extending direction of two circumferential extensions (3012) is away from each other.
7. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator as claimed in claim 6, it is characterised in that: the medium base
Plate (1) is rounded, the circumferential extensions that one point of three power splitter (2) is arranged in the center of medium substrate (1), oscillator arms (301)
(3012) it is arranged along the circumferential edges of medium substrate (1).
8. such as a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator described in claim 5 or 6, it is characterised in that: the oscillator
The length of arm (301) is 0.48 times of antenna wavelength.
9. a kind of ultra wide band horizontally polarized omnidirectional antenna oscillator as described in claim 1, it is characterised in that: the medium base
Plate (1) is pcb board, with a thickness of 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701322.2U CN208507942U (en) | 2018-05-11 | 2018-05-11 | A kind of ultra wide band horizontally polarized omnidirectional antenna oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701322.2U CN208507942U (en) | 2018-05-11 | 2018-05-11 | A kind of ultra wide band horizontally polarized omnidirectional antenna oscillator |
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| Publication Number | Publication Date |
|---|---|
| CN208507942U true CN208507942U (en) | 2019-02-15 |
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ID=65299345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820701322.2U Active CN208507942U (en) | 2018-05-11 | 2018-05-11 | A kind of ultra wide band horizontally polarized omnidirectional antenna oscillator |
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| CN (1) | CN208507942U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525262A (en) * | 2020-05-26 | 2020-08-11 | 网络通信与安全紫金山实验室 | Circular multi-beam phased array antenna and communication method |
| CN112886222A (en) * | 2020-12-30 | 2021-06-01 | 广州杰赛科技股份有限公司 | Horizontal polarization omnidirectional antenna |
| CN114243277A (en) * | 2021-11-30 | 2022-03-25 | 深圳市联洲国际技术有限公司 | Reconfigurable antenna |
-
2018
- 2018-05-11 CN CN201820701322.2U patent/CN208507942U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525262A (en) * | 2020-05-26 | 2020-08-11 | 网络通信与安全紫金山实验室 | Circular multi-beam phased array antenna and communication method |
| CN112886222A (en) * | 2020-12-30 | 2021-06-01 | 广州杰赛科技股份有限公司 | Horizontal polarization omnidirectional antenna |
| CN114243277A (en) * | 2021-11-30 | 2022-03-25 | 深圳市联洲国际技术有限公司 | Reconfigurable antenna |
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