CN201298594Y - Broadband omnidirectional antenna with medium gain - Google Patents
Broadband omnidirectional antenna with medium gain Download PDFInfo
- Publication number
- CN201298594Y CN201298594Y CNU2008201605482U CN200820160548U CN201298594Y CN 201298594 Y CN201298594 Y CN 201298594Y CN U2008201605482 U CNU2008201605482 U CN U2008201605482U CN 200820160548 U CN200820160548 U CN 200820160548U CN 201298594 Y CN201298594 Y CN 201298594Y
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- oscillator
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- directional antenna
- compensation sheet
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 4
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000010295 mobile communication Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to a broadband omnidirectional antenna with medium gain. A main feed line (6) is used for feeding a main oscillator, wherein, the main oscillator comprises an upper oscillator (12) and a lower oscillator (13). The utility model is characterized in that the main feed line (6) is connected with the input terminal of a one-into-two power divider (16), a first feed line (17) and a second feed line (18) with the same lengths at the output terminal of the one-into-two power divider (16) are used for feeding an upper main oscillator and a lower main oscillator; the space between the upper and the lower main oscillators is 0.8 Lambada <0>, and Lambada <0> is the corresponding wavelength of the center frequency; the lower ports (32) of the upper oscillator(12) and the lower oscillator (13) are in short connection, and a small plastic fixing plate (5) is arranged between the lower ports thereof; a hollow copper pipe (4) penetrates the main oscillator, an inner layer sleeve (8) and an outer layer sleeve (7) are respectively sleeved outside the copper pipe (4), two layers of media ring block (14) are added in the inner layer sleeve (8) of the upper oscillator (12).
Description
Technical field
The utility model relates to a kind of broadband whole day line of medium gain, be applied to communication, in the moving communicating field in all communications network systems as sending out or/and the usefulness that receives radio signals, affiliated technical field: radio communication equipment, Electromagnetic Field and Microwave Technology, mobile communication antenna.
Background technology
Because radio communication equipment and electronic equipment are towards multi-functional, miniaturization, ultra broadband and the friendly direction of coordinating with surrounding environment develop, this makes broadband, the research of miniature antenna becomes the hot subject of domestic and international mobile communications industry, it relates to the loading and the reactance compensation technique of antenna, the optimal design of miniature antenna external form, be suitable for the design of the miniature antenna broadband matching network that the different districts signal covers and the integrated design of multiband common antenna, a plurality of frequency ranges are integrated into a kind of trend that a kind of antenna structure is current antenna technology development, also are the motive forces that realizes device miniaturization.Antenna product in the past is to design at different working frequency range, stock size and volume are all bigger, variant communications network system independent design, whether compatible or compatible degree depend on the bandwidth and the corresponding performance of antenna system, frequency of utilization and road device during some communication products system integration, be not easy to install, improved cost, and the exploitation all be the directional antenna product, though also promising number broadband omni-directional antenna product seldom, complex structure, processing cost is higher, and have some defectives on the performance, and should not promote, cover to mobile communication cells like this and caused certain degree of difficulty, therefore develop the multiband miniaturization, simple in structure, power saving reduces discharging, and broadband omni-directional antenna with low cost is very necessary.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and a kind of medium gain broadband omni-directional antenna is provided.
Beneficial effect:
1, because this antenna has adopted thick oscillator and transition and the measure of two sleeve reactance compensation, not only guaranteed wide band impedance matching property, reduced the size of radiating element simultaneously greatly, more helped power saving and reduce discharging.
2, in antenna structure, the copper pipe of hollow plays triple role:
A, supporting antenna radiant body
B, feeder line penetrate from hollow copper pipe and pass, in pipe, lay, prevented the influence of feeder line effectively to radiation pattern, the feeder line radiating element can be moved freely along this pipe help changing array element distance and current feed phase, reach and change pattern characteristics easily, the purpose of adjusting antenna beamwidth.
C, it plays a part double-layer coaxial chokes sleeve inner wire, and the dielectric-sleeve that is enclosed within simultaneously above it plays tunning effect, has saved multiple compensating plate, has kept radiating doublet symmetry structurally, thereby makes antenna have good directivity and uniformity.
3, what be worth progressive explanation is b point in 2: because the characteristics on the antenna structure, can adjust the beamwidth of antenna easily, for the low gain omnidirectional antenna, its wave beam is enough wide, be not easy to also need not to have adjusted, the omnidirectional antenna of high-gain is adjusted in being primarily aimed at, can be used as the two-element antenna battle array to them handles, as required, antenna will cover skyscraper, will the broadening beamwidth, the way of broadening is exactly the current feed phase (no longer being the isometric feeder line in each unit) that changes array element distance and change each array element, can change antenna beamwidth in the larger context, such as, the beamwidth that reaches about 60% is unchallenged, and correspondingly antenna gain will reduce about 2-3dBi, even loss is more more.
Figure of description
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a main element structural representation of the present utility model.
Embodiment
Below with reference to drawings and Examples the technical solution of the utility model is described in detail.
Fig. 1, Fig. 2, wherein 1 is last location lid, and 2 for locating lid down, and 3 is radome, 4 is copper pipe, and 5 are the fixing shallow bid of plastics, and 6 is main feeder, and 7 is outer layer sleeve, 8 is inner layer sleeve, and 9 is the large compensation sheet, and 10 is little compensating plate, and 11 is the slope compensation sheet, 12 is last oscillator, and 13 are following oscillator, and 14 is the dielectric ring piece, 16 are the power splitter that is divided into two, and 17 is first feeder line, and 18 is second feeder line, 31 is upper port, and 32 is lower port, and 34 is distributing point.
In electronic apparatus systems such as modern communications, the antenna system that uses is various, its middle sleeve element antenna has obtained using widely with its good broadband character, but its broadband character does not satisfy the employed frequency range of present mobile communication (800-2500M/HZ) far away simultaneously, similar with common even element antenna, the total length of sleeve idol element antenna is taken as the pairing half-wavelength of working frequency range lower frequency limit usually, and this programme is in order to adapt to the demand of miniaturization, the actual size that adopts is much smaller than λ max/2 (λ max makes wavelength for corresponding farm labourer), we are in omni-directional array antenna, unit its length of coaxial sleeve antenna that adopts is 100mm, length much smaller than normal λ max/2=183.5mm, traditional connection in series-parallel feeding classification can't satisfy the full frequency band directional diagram and not distort in wideband section omni-directional array antenna, so adopt constant amplitude homophase unequal-interval parallelly feeding (will use it in the above array of binary) to avoid the distortion of elevation radiation patytern effectively in this programme.
Connect the input of the power splitter 16 that is divided into two from the signal of communication equipment through main feeder 6, isometric first feeder line 17 of power splitter 16 outputs that are divided into two and second feeder line 18 are given last main element and following main element feed respectively, and the spacing of main element is about 0.8 and goes into up and down
0, go into
0Wavelength for the centre frequency correspondence.Main element comprises oscillator 12 and following oscillator 13, last oscillator 12, lower port 32 short circuits of following oscillator 13 together and between be provided with fixedly shallow bid 5 of plastics, in the middle of main element, be installed with the copper pipe 4 of hollow, copper pipe 4 outsides are with inner layer sleeve 8 and outer layer sleeve 7 respectively, outer layer sleeve 7 and inner layer sleeve 8 form the primary radiation unit of multiple-frequency operation, double layer sleeve barrel is connected to the copper pipe 4 of hollow in upper port 31, play the effect of double-deck strategic point stream, remedied because the weak shortcoming of the long upper end of main element electric current, make electric current form the loop, thereby making the electric current on the antenna is row wavelength-division cloth, has reduced the reflection of electric current, and this is one of reactance compensation measure.Last oscillator 12, down oscillator 13 lower port 32 short circuits together and between be provided with fixedly shallow bid 5 of plastics, and jointly by coaxial feeding.Following oscillator 13 is connected on the center copper pipe 4 in upper port 31, because coaxial line can be realized the radiation of energy when high frequency, be equivalent to antenna, adopt this kind mount scheme, the copper pipe 4 of hollow can mask the outside electromagnetic radiation energy of coaxial line, and the sub-feed of electrode couple, played the effect of Ba Lun.This dipole is approximate to work in 1/2 wavelength, and outer layer sleeve 7 sizes design low-frequency range, and inner layer sleeve 8 sizes design at high frequency.Following two-layer sleeve is as the negative pole of main element, and this structure is a kind of doublet unit.In the inner layer sleeve 8 of last oscillator 12, be added with two layer medium ring piece 14 (generally making) with the tetrafluoro hexene, can further debug characteristic impedance of antenna, make the input impedance of antenna approach 50 ohm, be complementary with the axis characteristic impedance, this is two of a reactance compensation, the thickness of this dielectric ring piece 14 is adjustable till frequency generation resonance promptly mates the best, the spacing of two layer medium ring piece 14 also is adjustable, in order further to improve coupling, can increase vertical large compensation sheet 9 and vertical little compensating plate 10 and slope compensation sheet 11; Vertical large compensation sheet 9 is connected to the outer wall of outer sleeve 7, and the horizontal line at vertical main element center; Angle in oscillator formation up and down is provided with vertical little compensating plate 10 and slope compensation sheet 11, the two ends of slope compensation sheet 11 are connected to the outer wall of oscillator up and down, slope compensation sheet 11 links together on electric with distributing point 34, with the opposite side of slope compensation sheet 11 symmetries vertical little compensating plate 10 is arranged, the two ends of vertical little compensating plate 10 are connected to the outer wall of oscillator up and down.In order to improve impedance matching, The initial segment adopts the gradual transition form in the middle of the main element, and the gradual change part is 30 °-45 ° with the angle of center copper pipe 4.External agency radome 3 at upper and lower oscillator; it is the outer cover of the protection antenna made by PVC grog or glass reinforced plastic pipe; generally require it little to the decay of electromagnetism; mechanical strength is good; environmental suitability is strong; utilize upper and lower location lid 1 and 2 to encapsulate at last, center copper pipe 4 passes down the location and covers 2.
The advantage of this oscillator is compact conformation, is easy to install and fix, and realizes multiple-frequency operation on same structure, is convenient to the system integration.
Though the utility model with preferred embodiment openly as above; but they are not to be used for limiting the utility model; anyly have the knack of this skill person; in the spirit and scope that do not break away from the utility model; can do various variations or retouching from working as, what therefore protection range of the present utility model should be defined with the application's claim protection range is as the criterion.
Claims (7)
1, a kind of broadband omni-directional antenna of medium gain, main feeder (6) is given the main element feed, main element comprises oscillator (12) and following oscillator (13), it is characterized in that: main feeder (6) connects the input of power splitter (16) that are divided into two, be divided into two isometric first feeder line (17) of power splitter (16) output and second feeder line (18) given last main element and following main element feed respectively, and the spacing of main element is about 0.8 and goes into up and down
0, go into
0Wavelength for the centre frequency correspondence; Last oscillator (12), down oscillator (13) lower port (32) short circuit together and between be provided with fixedly shallow bid (5) of plastics, in the middle of main element, be installed with the copper pipe (4) of hollow, copper pipe (4) outside is with inner layer sleeve (8) and outer layer sleeve (7) respectively, is added with two layer medium ring piece (14) in the inner layer sleeve (8) of last oscillator (12).
2, the broadband omni-directional antenna of medium gain according to claim 1 is characterized in that: The initial segment adopts the gradual transition form in the middle of the main element, and the gradual change part is 30 °-45 ° with the angle of center copper pipe (4).
3, the broadband omni-directional antenna of medium gain according to claim 1 is characterized in that: dielectric ring piece (14) is made by the tetrafluoro hexene.
4, the broadband omni-directional antenna of medium gain according to claim 1 is characterized in that: the thickness of dielectric ring piece (14) is adjustable, and the spacing of two layer medium ring piece (14) also is adjustable.
5, the broadband omni-directional antenna of medium gain according to claim 1 is characterized in that: the outer wall at outer sleeve (7) is provided with vertical large compensation sheet (9), and the horizontal line at the vertical vertical main element of large compensation sheet (9) center; Angle in oscillator formation up and down is provided with vertical little compensating plate (10) and slope compensation sheet (11), the two ends of slope compensation sheet (11) are connected to the outer wall of oscillator up and down, slope compensation sheet (11) links together on electric with distributing point (34), with the opposite side of slope compensation sheet (11) symmetry vertical little compensating plate (10) is arranged, the two ends of vertical little compensating plate (10) are connected to the outer wall of oscillator up and down.
6, according to the broadband omni-directional antenna of any described medium gain in the claim 1 to 5, it is characterized in that: at the external agency radome (3) of main element, be provided with upper and lower location lid (1) and (2) at the two ends of radome (3), center copper pipe (4) passes down location lid (2).
7, the broadband omni-directional antenna of medium gain according to claim 6 is characterized in that: radome (3) adopts the radome of being made by PVC grog or glass reinforced plastic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201605482U CN201298594Y (en) | 2008-09-27 | 2008-09-27 | Broadband omnidirectional antenna with medium gain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201605482U CN201298594Y (en) | 2008-09-27 | 2008-09-27 | Broadband omnidirectional antenna with medium gain |
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| Publication Number | Publication Date |
|---|---|
| CN201298594Y true CN201298594Y (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201605482U Expired - Lifetime CN201298594Y (en) | 2008-09-27 | 2008-09-27 | Broadband omnidirectional antenna with medium gain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298594Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378148B (en) * | 2008-09-27 | 2012-06-27 | 江苏安特耐科技有限公司 | Novel wide-band omnidirectional antenna |
| CN102544765A (en) * | 2010-12-17 | 2012-07-04 | 西安金林通信科技信息有限公司 | Novel omnidirectional light antenna |
| CN108666749A (en) * | 2018-02-11 | 2018-10-16 | 康凯科技（杭州）股份有限公司 | A kind of antenna unit and MIMO antenna system |
| CN112909530A (en) * | 2021-02-22 | 2021-06-04 | 烽火通信科技股份有限公司 | Double-frequency double-fed antenna |
| CN113948854A (en) * | 2021-09-30 | 2022-01-18 | 中国船舶重工集团公司第七二四研究所 | A coaxial series-parallel feed omnidirectional biconical dipole sleeve antenna |
-
2008
- 2008-09-27 CN CNU2008201605482U patent/CN201298594Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378148B (en) * | 2008-09-27 | 2012-06-27 | 江苏安特耐科技有限公司 | Novel wide-band omnidirectional antenna |
| CN102544765A (en) * | 2010-12-17 | 2012-07-04 | 西安金林通信科技信息有限公司 | Novel omnidirectional light antenna |
| CN108666749A (en) * | 2018-02-11 | 2018-10-16 | 康凯科技（杭州）股份有限公司 | A kind of antenna unit and MIMO antenna system |
| CN112909530A (en) * | 2021-02-22 | 2021-06-04 | 烽火通信科技股份有限公司 | Double-frequency double-fed antenna |
| CN113948854A (en) * | 2021-09-30 | 2022-01-18 | 中国船舶重工集团公司第七二四研究所 | A coaxial series-parallel feed omnidirectional biconical dipole sleeve antenna |
| CN113948854B (en) * | 2021-09-30 | 2025-01-10 | 中国船舶集团有限公司第七二四研究所 | A coaxial series-parallel fed omnidirectional biconical dipole sleeve antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090826 Effective date of abandoning: 20080927 |