CN102842752A - Omnidirectional antenna device with central axial null-filling function - Google Patents
Omnidirectional antenna device with central axial null-filling function Download PDFInfo
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- CN102842752A CN102842752A CN2012103331806A CN201210333180A CN102842752A CN 102842752 A CN102842752 A CN 102842752A CN 2012103331806 A CN2012103331806 A CN 2012103331806A CN 201210333180 A CN201210333180 A CN 201210333180A CN 102842752 A CN102842752 A CN 102842752A
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- omnidirectional antenna
- central shaft
- zero point
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Abstract
The invention discloses an omnidirectional antenna device with a central axial null-filling function. The omnidirectional antenna device comprises omnidirectional antenna radiating elements, a central guide pipe, a feed network manufactured by coaxial feeder lines, a passive coupler, an auxiliary antenna for central axial null-filling and a standard 50 Omega interface. The feed network manufactured by the coaxial feeder lines and all the omnidirectional antenna radiating elements are subject to phase control, so that null-filing of minor lobes and upward warping of major lobes on a central axial radiation directional diagram of the omnidirectional antenna, as well as null-filling of upper radiation space within the central axial zero-angle range, are achieved, and further, the radiant energy of the omnidirectional antenna can achieve more stable signal coverage communication under the condition that the omnidirectional antenna is at a set altitude above the ground.
Description
Technical field
The present invention relates to communication antenna systems technology field, relate in particular to a kind of central shaft and fill the omnidirectional antenna device to zero point.
Background technology
The conventional omnidirectional antenna that uses on the Communications Market at present, though the profile style is of all shapes and colors, its inner structure is similar basically.Therefore determined also that its central shaft of conventional omnidirectional antenna is similar to the beam direction of directional diagram and angle etc.If only using with the covering of sub-district, road at some conventional communication base stations, conventional omnidirectional antenna can satisfy the needs that cover use basically.If but the course line of the aircraft of built on stilts certain altitude, air line cover or the particular application such as earth-space communication of radar guided missile in; Because the particularity of application scenario; The omnidirectional antenna of general communication is because its structural axial zero degree angle of center of antenna interior zero that determined causes bigger signal deletion deeply more greatly; As shown in Figure 1; Central shaft generally upwarps angle or tilt angled down direction at zero degree or band to the antenna pattern main lobe, thus can't satisfy the aircraft of built on stilts certain altitude the course line in the air line covers or the particular application such as earth-space communication of radar guided missile in the main beam axial zero degree angular range of the message center internal upper part radiation space that makes progress carry out the instructions for use of filling zero point.
Summary of the invention
The objective of the invention is to propose a kind of central shaft and fill the omnidirectional antenna device to zero point; Realize broadband operation easily; Central shaft upwarps radiation and makes central shaft and fill to zero point to the antenna pattern wave beam, makes upwards communication and in the zero degree angle, zero cause the disappearance than large-signal to compensate more greatly deeply to central shaft of signal of communication.
For reaching such purpose, the present invention adopts following technical scheme:
A kind of central shaft is filled the omnidirectional antenna device to zero point, comprising: the feeding network that omnidirectional antenna radiating element, centre pipe, coaxial feeder are done, passive coupling device, be used for auxiliary antenna and standard 50 Ω interfaces that central shaft was filled to zero point;
Said omnidirectional antenna device is made up of a plurality of radiating elements and is the uniformity periodic arrangement and becomes coaxial conllinear battle array;
It is inner and evenly distributed that the feeding network that described coaxial feeder is done is arranged at said omnidirectional antenna radiating element, is used for the phase control that said omnidirectional antenna device central shaft was filled to the upwards zero point of antenna pattern;
Said passive coupling device is arranged at said omnidirectional antenna radiating element bottom, is used for part signal is assigned to through the coupler coupling auxiliary antenna at top;
The said auxiliary antenna that is used for filling axial zero point is arranged at the top of said omnidirectional antenna device, and filling compensates to zero point to be used for that the signal that distributes through said passive coupling device is carried out central shaft.
Said omnidirectional antenna radiating element is the tubular metal radiant body, forms uniformly periodically coaxial conllinear array by two metal sleeve oscillators and chokes sleeve pipe and a plurality of radiating element; The centre frequency of said two metal sleeve oscillators is respectively 1/4 λ and 1/5 λ, and wherein, λ is the operation wavelength of said metal sleeve oscillator.
The feeding network that said coaxial feeder is done is arranged at antenna radiation unit inside; Each feeder line parallelly feeding is assigned to periodically coaxial conllinear array of a plurality of radiating element composition homogeneities; And control the phase difference of said feeding network through the length of adjusting coaxial feeder between two or more radiating elements, thereby control the effect of secondary lobe filling at zero point.
Said passive coupling device is arranged at omnidirectional antenna radiating element central shaft on the position of the 0.8 times of centre wavelength distance in bottom, can control the amplitude distribution ratio of omnidirectional antenna radiating element and auxiliary antenna through the degree of coupling of adjustment passive coupling device.
The auxiliary antenna that said central shaft was filled to zero point is arranged at omnidirectional antenna radiating element central shaft on the position of the 0.8 times of centre wavelength distance in top.
Adopt technical scheme of the present invention; Realize broadband operation easily; The elevation radiation patytern wave beam upwards upwarps and does central shaft and fills the effect of radiation to zero point, makes upwards communication of aerial signal, and adopts central shaft to the filling technique at zero point; Remedy central shaft disappearance of the radiation signal of wave beam upwards in 0:00 direction figure angle, make the emittance of said antenna can realize also that under the situation of built on stilts certain altitude more stable signal covers communication.
Description of drawings
Fig. 1 is the test result sketch map of the omnidirectional antenna elevation radiation patytern used of existing general communication.
Fig. 2 is central shaft that the embodiment of the invention provides is filled a structural representation from the omnidirectional antenna device to zero point.
Fig. 3 is the test result sketch map that the omnidirectional antenna in the embodiment of the invention upwarps through control feeding network phase place official post elevation radiation patytern main lobe.
Fig. 4 is that the omnidirectional antenna control feeding network phase difference in the embodiment of the invention realizes that secondary lobe on the elevation radiation patytern fills and use central shaft that central shaft the surveys elevation radiation patytern test result sketch map to the filling effect at zero point zero point after filling auxiliary antenna zero point.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and through embodiment.
To be a kind of central shaft of providing of the embodiment of the invention fill the structural representation of omnidirectional antenna device to zero point to Fig. 2, and this omnidirectional antenna comprises: by a plurality of radiating element composition homogeneities periodically coaxial conllinear array radiating element 1, feeding network 2, centre pipe 3, passive coupling device 4 that coaxial feeder is done, be used for auxiliary antenna 5 and standard 50 Ω interfaces 6 that central shaft was filled to zero point.
The said central shaft that is used for is arranged at the position of radiating element 1 central shaft to the about 0.8 times of centre wavelength of the certain distance in top to the auxiliary antenna 5 of filling at zero point; The said central shaft that is used for connects through drawing feeder line with said passive coupling device 4 to the auxiliary antenna 5 of filling at zero point, and the radiating element 1 of the coaxial conllinear array of said a plurality of radiating element composition homogeneities periodicity is electrically connected with the coupling port of said passive coupling device 4 through the feeder line of drawing of feeding network 2.Said passive coupling device 4 is used for the auxiliary antenna 5 that the power coupling distributing signal in the device is filled to zero point to the central shaft at top.
Said radiating element 1 carries out phase control through feeding network 2, makes the elevation radiation patytern main lobe of omnidirectional antenna upwarp.Said radiating element 1 is carried out phase control, control the phase difference of said feeding network 2, thereby control the effect of secondary lobe filling at zero point through the length of adjusting coaxial feeder between two or more radiating elements 1.The length of said coaxial feeder calculates according to the operating frequency and the wavelength of said omnidirectional antenna device.
Thereby as shown in Figure 3 is to the test result of said radiating element 1 through the phase difference aft antenna elevation radiation patytern of the length change feeding network 2 of change coaxial feeder, can find out that from the result antenna elevation radiation patytern main lobe upwarps.
Said radiating element 1 by the coaxial conllinear array of a plurality of radiating element composition homogeneities periodicity is preferably the tubular metal radiating element, forms a radiating element by two metal sleeve oscillators and chokes sleeve pipe.The centre frequency of said two metal sleeve oscillators is respectively 1/4 λ and 1/5 λ,, λ is the operation wavelength of said metal sleeve oscillator.
In order to make central shaft to reaching better filling effect, saidly be used for auxiliary antenna that central shaft fills to zero point and carry out central shaft and fill to zero point and augment through the passive coupling device resulting part electromagnetic wave that is coupled.
In another preferred embodiment, the said central shaft that is used for is filled the compensation antenna to the auxiliary antenna 5 of filling at zero point for central shaft to zero point, secondary lobe realization central shaft on the antenna is filled the effect of amplification to zero point.As shown in Figure 4; Fill auxiliary antenna with central shaft to zero point by the top, position of the radiating element 1 about 0.8 times of centre wavelength that is installed in the coaxial conllinear array of uniformity periodicity that distance is made up of a plurality of radiating elements central shaft is filled the test result of aft antenna elevation radiation patytern to zero point, can find out from the result that the directional diagram main lobe upwarps and central shaft makes progress and carry out effective filling zero point.
The key technical indexes of the omnidirectional antenna device in the embodiment of the invention is following:
Frequency range: 962～1057MHz;
Gain: 9dBi;
Last plane secondary lobe is filled zero point :-25dB;
Vertical lobe width: 7 °～8 °;
Voltage standing wave ratio :≤1.5;
Polarization mode: perpendicular polarization.
The technical scheme of embodiment of the present invention has following technique effect; Realize broadband operation easily; Secondary lobe is filled zero point on the center of antenna axial direction figure; Main beam upwarps radiation, makes upwards communication of aerial signal, and adopts central shaft to the filling technique at zero point; Augment central shaft disappearance of the radiation signal of wave beam upwards in 0:00 direction figure angle, thereby make this omnidirectional antenna emittance can realize also that under the situation of built on stilts certain altitude more stable signal covers or the course line covers communication.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with this technological people in the technical scope that the present invention disclosed; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (5)
1. a central shaft is filled the omnidirectional antenna device to zero point; It is characterized in that, comprising: the feeding network that omnidirectional antenna radiating element, centre pipe, coaxial feeder are done, passive coupling device, be used for auxiliary antenna and standard 50 Ω interfaces that central shaft was filled to zero point;
Said omnidirectional antenna device is made up of a plurality of radiating elements and is the uniformity periodic arrangement and becomes coaxial conllinear battle array;
It is inner and evenly distributed that the feeding network that described coaxial feeder is done is arranged at said omnidirectional antenna radiating element, is used for the phase control that said omnidirectional antenna device central shaft was filled to the upwards zero point of antenna pattern;
Said passive coupling device is arranged at said omnidirectional antenna radiating element bottom, is used for part signal is assigned to through the coupler coupling auxiliary antenna at top;
The said auxiliary antenna that is used for filling axial zero point is arranged at the top of said omnidirectional antenna device, and filling compensates to zero point to be used for that the signal that distributes through said passive coupling device is carried out central shaft.
2. central shaft according to claim 1 is filled the omnidirectional antenna device to zero point; It is characterized in that; Said omnidirectional antenna radiating element is the tubular metal radiant body, forms uniformly periodically coaxial conllinear array by two metal sleeve oscillators and chokes sleeve pipe and a plurality of radiating element; The centre frequency of said two metal sleeve oscillators is respectively 1/4 λ and 1/5 λ, and wherein, λ is the operation wavelength of said metal sleeve oscillator.
3. central shaft according to claim 1 is filled the omnidirectional antenna device to zero point; It is characterized in that; The feeding network that said coaxial feeder is done is arranged at antenna radiation unit inside; Each feeder line parallelly feeding is assigned to periodically coaxial conllinear array of a plurality of radiating element composition homogeneities, and controls the phase difference of said feeding network through the length of adjusting coaxial feeder between two or more radiating elements, thereby controls the effect of secondary lobe filling at zero point.
4. central shaft according to claim 1 is filled the omnidirectional antenna device to zero point; It is characterized in that; Said passive coupling device is arranged at omnidirectional antenna radiating element central shaft on the position of the 0.8 times of centre wavelength distance in bottom, can control the amplitude distribution ratio of omnidirectional antenna radiating element and auxiliary antenna through the degree of coupling of adjustment passive coupling device.
5. central shaft according to claim 1 is filled the omnidirectional antenna device to zero point, it is characterized in that, the auxiliary antenna that said central shaft was filled to zero point is arranged at omnidirectional antenna radiating element central shaft on the position of the 0.8 times of centre wavelength distance in top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210333180.6A CN102842752B (en) | 2012-09-10 | 2012-09-10 | Omnidirectional antenna device with central axial null-filling function |
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| CN201210333180.6A CN102842752B (en) | 2012-09-10 | 2012-09-10 | Omnidirectional antenna device with central axial null-filling function |
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| CN102842752A true CN102842752A (en) | 2012-12-26 |
| CN102842752B CN102842752B (en) | 2014-06-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943972A (en) * | 2014-04-17 | 2014-07-23 | 四川九洲电器集团有限责任公司 | Combined type antenna structure |
| CN107004946A (en) * | 2014-12-12 | 2017-08-01 | 华为技术有限公司 | Height covering aerial array and graing lobe layer application method |
| CN110719596A (en) * | 2019-09-19 | 2020-01-21 | 北京长焜科技有限公司 | Base station antenna design method for greatly improving ground-air communication signal coverage quality |
| CN113964497A (en) * | 2021-10-28 | 2022-01-21 | 江苏亨鑫科技有限公司 | Hidden null-fill omnidirectional antenna |
| CN115882187A (en) * | 2023-02-22 | 2023-03-31 | 广东健博通科技股份有限公司 | Side-emitting omnidirectional antenna |
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| CN202839947U (en) * | 2012-09-10 | 2013-03-27 | 佛山市健博通电讯实业有限公司 | Omnidirectional antenna device with central axial null-filling function |
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| US6208313B1 (en) * | 1999-02-25 | 2001-03-27 | Nortel Networks Limited | Sectoral antenna with changeable sector beamwidth capability |
| US6421021B1 (en) * | 2001-04-17 | 2002-07-16 | Raytheon Company | Active array lens antenna using CTS space feed for reduced antenna depth |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943972A (en) * | 2014-04-17 | 2014-07-23 | 四川九洲电器集团有限责任公司 | Combined type antenna structure |
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| CN107004946A (en) * | 2014-12-12 | 2017-08-01 | 华为技术有限公司 | Height covering aerial array and graing lobe layer application method |
| US10439283B2 (en) | 2014-12-12 | 2019-10-08 | Huawei Technologies Co., Ltd. | High coverage antenna array and method using grating lobe layers |
| CN110719596A (en) * | 2019-09-19 | 2020-01-21 | 北京长焜科技有限公司 | Base station antenna design method for greatly improving ground-air communication signal coverage quality |
| CN110719596B (en) * | 2019-09-19 | 2022-07-12 | 北京长焜科技有限公司 | Base station antenna design method for greatly improving ground-air communication signal coverage quality |
| CN113964497A (en) * | 2021-10-28 | 2022-01-21 | 江苏亨鑫科技有限公司 | Hidden null-fill omnidirectional antenna |
| CN115882187A (en) * | 2023-02-22 | 2023-03-31 | 广东健博通科技股份有限公司 | Side-emitting omnidirectional antenna |
| CN115882187B (en) * | 2023-02-22 | 2023-05-19 | 广东健博通科技股份有限公司 | Side-emitting omnidirectional antenna |
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| CN102842752B (en) | 2014-06-04 |
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Owner name: GUANGDONG KENBOTONG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANBOTONG TELECOMMUNICATION INDUSTRIAL CO., LTD., FOSHAN CITY |
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Address after: 528031, Foshan City, Guangdong province Ji Hua Road West Chan Road, No. 2 Health Science Park Broadcom Patentee after: Guangdong Science and Technology Co., Ltd. of strong Botong Address before: 528031, Foshan City, Guangdong province Ji Hua Road West Chan Road, No. 2 Health Science Park Broadcom Patentee before: Jianbotong Telecommunication Industrial Co., Ltd., Foshan City |