CN1688067B - Bipolarized loaded antenna radiating unit - Google Patents
Bipolarized loaded antenna radiating unit Download PDFInfo
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- CN1688067B CN1688067B CN 200510034456 CN200510034456A CN1688067B CN 1688067 B CN1688067 B CN 1688067B CN 200510034456 CN200510034456 CN 200510034456 CN 200510034456 A CN200510034456 A CN 200510034456A CN 1688067 B CN1688067 B CN 1688067B
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- 230000005855 radiation Effects 0.000 claims abstract description 27
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- 230000009977 dual effect Effects 0.000 claims description 12
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- 229910052751 metal Inorganic materials 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 230000010354 integration Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 10
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- 230000010287 polarization Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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- 238000010295 mobile communication Methods 0.000 description 3
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
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- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
A bipolar load antenna radiation unit includes an antenna bottom plate, two dipoles which are vertically crossed with each other, wherein the dipoles are in a plate shape and arranged vertically to the antenna bottom plate, each contains two half-dipoles including a radiation part, a support part, a feed structure and a basic part, the basic part is connected to the antenna bottom plate. The bipolar load antenna radiation unit also includes a tuning plate. The feed structure includes two vertical crossed and not connected feed plates. The two half-dipoles of each bipolar are placed at different sides corresponding to the feed plates. The cross positions of the two feed plated is corresponding to the center of the radiation unit. The invention reduces the height of the radiation unit greatly while the performance is satisfied, also increases the isolation performance of the radiation unit, so that a high order intermodulation is controllable, the feed line of a feeder becomes free, and finally the impedance matching is satisfied and the structure is simple.
Description
Technical field
The present invention relates to the tracking exchage double-polarization plate antenna, relate in particular to the radiating element of double-polarization plate antenna.
Background technology
The antenna that is used for radio telecommunications system has the ability of the electromagnetic signal of transmitting and receiving, the received signal communication network of being handled and fed by receiver.Transmit is to be different from the frequency emission of received signal.In different types of mobile communication antenna, dual polarized antenna is owing to having the function of frequency reuse and polarization diversity, to such an extent as to it has become a crucial research topic and demand increases day by day.But dual polarized antenna commonly used at present is owing to the reason of its radiative unit structure has following deficiency usually:
At first, because the extensive application of dual polarized antenna, the size that reduces each antenna reduces manufacturing cost becomes one of target of manufacturer; Simultaneously, in the mobile communication base station, by using littler antenna for base station to reduce the size of tower, reduce the visual impact of these towers in community thus and also become one of problem of people in the industry's concern, like this, antenna with low form more and more becomes a kind of trend, but dual polarized antenna at present commonly used is owing to reason such as its radiative unit structure and do not meet this requirement, such as in 800MHz～900MHz frequency range, the radiant section of tradition dual polarization antenna radiation unit will be apart from the approximate quarter-wave height of base plate, the entire antenna radiating element is taller more a lot of than quarter-wave toward contact like this, caused the increase of radiating element and outer cover cost thus, and be unfavorable for visual effect, and the method by simple change radiating element shape reduces antenna height sizable difficulty is arranged, moreover when antenna height reduced, its isolation is variation immediately;
Secondly, traditional dual polarization antenna radiation unit is folding radiating element and the chip unit that is integrated into of unitary piece of metal substantially, but use the isolation index of antenna of these two kinds of radiating elements all not high, especially folding dual polarization antenna radiation unit adopts two dipoles to be positioned at the structure of feed tab in the same side, thus, because of influencing each other, two feed tab of orthogonal polarization cause the isolation variation;
Moreover the folding radiating element of traditional dual polarized antenna is because folding integration of many employing unitary piece of metal forms, and its welding scope with Antenna baseplate is big also to need more securing member to fixedly connected, and its process complexity has limited batch process; Simultaneously, these securing members and solder joint have been introduced fixing not firm and the hidden danger that the different metal interface is loosening in a lot of contacts, have produced thus not wish the intermodulation product seen.So, in order to isolate characteristic and little intermodulation product between the port that obtains, all radiating elements in the whole array all require firm fixing and as far as possible little linkage interface just to become quite important.
Summary of the invention
Technical problem to be solved by this invention provides the double-polarization plate antenna radiating element that a kind of size reduces, isolation high and intermodulation is reduced.
Technical scheme of the present invention is: Bipolarized loaded antenna radiating unit comprises Antenna baseplate and two dipoles arranged in a crossed manner that are perpendicular to one another, described dipole is tabular and perpendicular to this Antenna baseplate setting, each dipole comprises two half dipoles, each half dipole includes Department of Radiation, support portion, feed structure and base portion, and this base portion is connected on the described Antenna baseplate; Also comprise one tuning, tuning insulation is fixed in the top of dipole radiation portion and is connected with dipole radiation portion insulation, feed structure comprises two square crossings but unconnected each other feed tab, insulation is fixedly connected on two half dipoles of each dipole and gives two corresponding half dipole feeds respectively, each feed tab originates in the support portion of a half dipole in the corresponding dipole, bending is through the Department of Radiation of second half dipole up, the support portion and above or below Antenna baseplate final bending be the feeding network parallel with base plate, two half dipoles of each dipole are positioned at the not homonymy of corresponding feed tab, the center of the corresponding whole radiating element of the crossover location of two feed tab.
In such scheme, two dipoles can be formed by folding integration of a unitary piece of metal sheet, the dipole base portion comprises a connecting portion that four half dipoles are connected and is positioned at connecting portion terminal and a little more than four pin of connecting portion, connecting portion sinks in the clearance channel of the respective shapes on the Antenna baseplate during installation, and guarantee to keep certain distance between feed structure and base plate parallel portion and the base plate, four pin are fixedlyed connected with Antenna baseplate by the medium screw;
In such scheme, four half dipoles of two dipoles also can by four independently sheet metal bending form, the base portion of dipole comprises four pin, and these four pin are fixedlyed connected with Antenna baseplate by the medium screw, have clearance channel on the Antenna baseplate, pass Antenna baseplate with the described feed tab of antenna radiation unit one side by clearance channel and form described feeding network to each dipole feed;
In such scheme, two dipoles can also be respectively by two independently the sheet metal bending form, the base portion of dipole comprises the connecting portion that connects two adjacent half dipoles and is positioned at connecting portion terminal and a little more than four pin of connecting portion, described connecting portion sinks in the clearance channel of the respective shapes on the Antenna baseplate during installation, and guarantee to keep certain distance between feed tab and base plate parallel portion and the base plate, described four pin are fixedlyed connected with Antenna baseplate by the medium screw, pass Antenna baseplate with the described feed tab of antenna radiation unit one side by clearance channel and form described feeding network to each dipole feed.
The present invention is by installing a metal additional with slide glass at traditional radiating element top, thereby makes radiating element reduce highly greatly under the situation that performance satisfies, and makes the radiating element whole height can accomplish sixth wavelength height.Active and the passive two parts that make dipole by employing have improved the isolation performance of radiating element greatly with respect to the staggered structure of feed tab.Bending design by the coupling part, bottom, thus make that the fastening part area reduces greatly in the clearance channel that is absorbed in base plate under the radiating element base portion, reduced intermodulation product thus greatly, make that senior intermodulation is controlled; Simultaneously so sagging design, also make the feed cabling of feed line become free, finally obtain gratifying impedance matching, good interport isolation, the directional diagram and the horizontal beam width of easy control, enough wide frequency band range and enough little intermodulation product have also guaranteed the simple and easy degree of processing simultaneously on the structure.
Description of drawings
Fig. 1 is for using antenna array stereogram of the present invention;
Fig. 2 is the first embodiment of the invention stereogram;
Fig. 3 is the first embodiment of the invention assembly drawing;
Fig. 4 removes vertical view after tuning for first embodiment of the invention;
Fig. 5 (a) is the end view of second embodiment of the invention;
Fig. 5 (b) is the upward view of second embodiment of the invention after being installed on the base plate;
Fig. 5 (c) removes vertical view after tuning for second embodiment of the invention;
Fig. 6 (a) removes vertical view after tuning for third embodiment of the invention;
Fig. 6 (b) removes stereogram after tuning for third embodiment of the invention.
Embodiment
Fig. 1 is for using the antenna array stereogram that dual polarized antenna of the present invention loads radiating element; Antenna comprises that a plurality of dual polarized antennas load radiating element.
Fig. 2-shown in Figure 4 is the structure chart of Bipolarized loaded antenna radiating unit first embodiment of the present invention.Two dipoles of present embodiment form by a single piece of conductive material is folding, and electric conducting material can be copper, bronze, conductive plastics, aluminium, aluminium alloy etc.Among the figure, 10 is Antenna baseplate, and Bipolarized loaded antenna radiating unit comprises two dipoles that each is made up of two half dipoles, and one insulate tuning 30 that is connected by dieelctric sheet and medium screw in the dipole top and with dipole.Each half dipole includes Department of Radiation, support portion, feed structure and base portion.21,22,23,24 be respectively half and half dipole radiation portion.The base portion of radiating element comprises four pin 25,26,27,28 and connects the connecting portion of four pin 25,26,27,28.Four pin 25,26,27,28 are a little more than connecting portion, and described connecting portion sinks in the clearance channel 12 of the respective shapes on the Antenna baseplate during installation.Make and can not contact between radiating element and the base plate thereby clearance channel 12 will keep certain gap more than needed, in order to avoid produce unwanted intermodulation distortion in unwanted place.Vertical portion between half and half dipole radiation portion and the base portion is divided into the support portion.Radiating element also comprises feed structure, described feed structure is the air microstrip structure, comprise two square crossings but unconnected each other feed tab 41 and 42, be connected in each dipole also to the half dipole feed in the dipole by the medium screw respectively, each feed tab originates in the support portion of a half dipole in the corresponding dipole, and bending is the feeding network parallel with base plate through Department of Radiation, support portion and final the bending in floor below of second half dipole up.45,46 for the feed tab bending part parallel with base plate, also is the part of feeding network.Two half dipoles of each dipole are positioned at the not homonymy of corresponding feed tab 41,42.The center of the corresponding whole radiating element of the crossover location of two feed tab 41,42 and guarantee 45,46 and base plate between keep certain distance, can isolate by uniform dielectric, for example air, foamed plastics etc.Four pin 25,26,27,28 of radiating element are connected with fixing hole 13,14,15,16 short circuits on the Antenna baseplate 10 by metal fixture.This metal fixture can be used nut, screw, screw, rivet or any other fixing means that is fit to, and as welding, brazing, cold working connection etc., can realize machinery between radiating element radiant section and the base plate 10 and electric both be connected.Therefore, use the antenna of this radiating element can prevent overvoltage or super-high-current, this overvoltage may be reasons such as lightning with the generation reason of crossing Dalian stream.Certainly adopt different fixed forms can produce in various degree influence to the intermodulation of antenna.Under the situation that material property allows, adopt as far as possible and wait the connected mode that makes the intermodulation minimum such as welding.
Feed structure and base plate 10 parallel bending parts are all given the radiant section feed under distance base plate 10 certain intervals, the assurance at this interval is to realize by little dielectric layer, dielectric layer is the medium pad normally, the plastics three-piece of being made up of continuously connected fastener, plastic mattress, plastic sheath also can realize this function, dielectric layer cooperates fixedly connected base plate and feed structure with rivet usually, and the plastics three-piece then can direct fixedly connected base plate and feed structure.Feed partly bends the back and is electrically connected with transmission line, and transmission line adopts air microstrip line or coaxial line.Transmission line is connected with RF equipment usually, for example transmitter or receiver.Feed tab quater-wave section 43,44 also is to isolate by dielectric layer to be fixed on the radiant section, realizes barron structure by the quarter-wave open circuit.
Fix one tuning 30 on the whole radiating element radiant section, this tuning shape and size be by radiating element resonance decision, can make performances such as the standing-wave ratio of regulating radiating element and isolation become simple by it.Experiment showed, by changing spacer shape, size and can realizing required standing-wave ratio and isolation characteristic easily with factor such as radiant section height.The most important effect of this spacer is the purpose that has realized reducing quadrature class radiating element height.Know by test: the common quadrature dual-polarization radiating unit that does not add tuning almost can't be implemented in and highly be lower than 90mm in 824～960MHz frequency range, and radiating element of the present invention can be realized the height of 60mm easily in this frequency range, thereby greatly reduce the volume of entire antenna, provide cost savings, strengthened antenna shapes feasibility attractive in appearance, the tuning plate shape of example is selected for use through optimizing among the present invention, can certainly select other difform tuning for use, comprise square, circular, cross or the like.
Tuning by design certain dielectric support guarantee its fix and with the isolation of radiating element radiant section, the fixed lobe group that dielectric structure is processed above by radiant section fixes.
Fig. 5 (a), Fig. 5 (b), Fig. 5 (c) are the topology view of Bipolarized loaded antenna radiating unit second embodiment of the present invention.The mark that band subscript one is cast aside among the figure is corresponding to the mark of same numbers in the first enforcement illustration.
What present embodiment was different with first embodiment is, four half dipoles forming two dipoles by four independently the conducting strip bending form, the base portion of described dipole comprises four pin 25 ', 26 ', 27 ', 28 ', no connecting portion, these four pin are fixedlyed connected with Antenna baseplate 10 ' by the medium screw, have clearance channel 12 ' on the Antenna baseplate 10 ', pass base plate 10 ' with the feeding network of antenna radiation unit heteropleural by clearance channel 12 ' and form feed tab and give each dipole feed.
Also need clearance channel 12 ' gap enough greatly guaranteeing that feed part 41 ', 42 ' can be stretched over below the base plate 10 ' from base plate 10 ' bottom under the condition that does not contact base plate 10 ' in the present embodiment, thereby realize feed for half dipole 21 ', 22 ', 23 ', the 24 ' dipole of forming.Obviously find out the bending part of feed structure in the present embodiment, promptly parallel with base plate feed part 45 ', 46 ' keeps the gap of 2mm at least in the below of base plate 10 ' with base plate.
Fig. 6 (a) and Fig. 6 (b) are that dual polarized antenna loading radiating element the 3rd embodiment of the present invention removes the vertical view after tuning.The mark that band subscript two is cast aside among the figure is corresponding to the mark of the same numbers in the first enforcement illustration.
What present embodiment was different with first and second embodiment is, four half dipoles 21 forming two dipoles "; 22 ", 23 "; 24 " respectively by two independently conducting strip bending form, the base portion of described dipole comprise the connecting portion that connects two adjacent half dipoles and be positioned at connecting portion terminal and a little more than four pin 25 of connecting portion "; 26 ", 27 "; 28 ", described connecting portion sinks in the clearance channel of the respective shapes on the Antenna baseplate during installation, described four pin 25 "; 26 ", 27 "; 28 " by medium screw and Antenna baseplate 10 " fixedly connected, pass base plate 10 with the feeding network of antenna radiation unit heteropleural by clearance channel " form feed tab to each dipole feed.
That the present invention can be widely used in is wireless, in the broadcasting, military and other communication system.Can be used in the base station, also can be used for other telecommunication system.And can adapt to different frequency bands, and for example, the north American cellular frequency range of 824～896MHz frequency, the North America relay system frequency range of 806～896MHz, global mobile communication system (GSM) frequency range of 870～960MHz.Also can be used on the wireless wave band PCS Personal Communications System of 1850～1900MHz (PCS) frequency range for example, Universal Mobile Telecommunications System (UMTS) frequency range of 1710～1880MHz personal communication network (PCN) (PCN) frequency range and 1885～2170MHz.Adopt the antenna of radiating element of the present invention can keep the impedance bandwidth of non-constant width, deduct low-limit frequency by the highest frequency that can regulate from this antenna and calculate impedance bandwidth divided by the centre frequency of this antenna then, for example, when the same day, line was operated on PCS, PCN and the UMTS frequency band, its impedance bandwidth was:
(2170MHz-1710MHz)/1940MHz＝24％
And in an embodiment of low-frequency range, the impedance bandwidth of this antenna is:
(960MHz-806MHz)/892MHz＝17.3％
Claims (5)
1. Bipolarized loaded antenna radiating unit, comprise Antenna baseplate and two dipoles arranged in a crossed manner that are perpendicular to one another, described dipole is tabular and perpendicular to this Antenna baseplate setting, each dipole comprises two half dipoles, each half dipole includes Department of Radiation, support portion, feed structure and base portion, and this base portion is connected on the described Antenna baseplate; It is characterized in that, also comprise one tuning, described tuning insulation is fixed in the top of dipole radiation portion and is connected with dipole radiation portion insulation; Described feed structure comprises two square crossings but unconnected each other feed tab, insulation is fixedly connected on two half dipoles of each dipole and gives two corresponding half dipole feeds respectively, each feed tab originates in the support portion of a half dipole in the corresponding dipole, bending is through the Department of Radiation of second half dipole up, the support portion and above or below Antenna baseplate final bending be the feeding network parallel with base plate, two half dipoles of each dipole are positioned at the not homonymy of corresponding feed tab, the center of the corresponding whole radiating element of the crossover location of two feed tab.
2. the described Bipolarized loaded antenna radiating unit of claim 1, it is characterized in that, two dipoles are formed by folding integration of a unitary piece of metal sheet, described dipole base portion comprises a connecting portion that four half dipoles are connected and is positioned at four ends of connecting portion and a little more than four pin of connecting portion, described connecting portion sinks in the clearance channel of the respective shapes on the Antenna baseplate during installation, and guarantee to keep certain distance between feed structure and base plate parallel portion and the base plate, described four pin are fixedlyed connected with Antenna baseplate by the medium screw.
3. the described Bipolarized loaded antenna radiating unit of claim 1, it is characterized in that, four half dipoles of described two dipoles respectively by four independently sheet metal bending form, the base portion of described dipole comprises four pin, and these four pin are fixedlyed connected with Antenna baseplate by the medium screw, have clearance channel on the Antenna baseplate, pass Antenna baseplate with the described feed tab of antenna radiation unit one side by clearance channel and form described feeding network to each dipole feed.
4. the described Bipolarized loaded antenna radiating unit of claim 1, it is characterized in that, described two dipoles respectively by two independently sheet metal bending form, the base portion of described dipole comprises the connecting portion that connects two adjacent half dipoles and is positioned at connecting portion terminal and a little more than four pin of connecting portion, described connecting portion sinks in the clearance channel of the respective shapes on the Antenna baseplate during installation, and guarantee to keep certain distance between feed tab and base plate parallel portion and the base plate, described four pin are fixedlyed connected with Antenna baseplate by the medium screw, pass Antenna baseplate with the described feed tab of antenna radiation unit one side by clearance channel and form described feeding network to each dipole feed.
5. a dual polarized antenna is characterized in that, comprises the described Bipolarized loaded antenna radiating unit of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034456 CN1688067B (en) | 2005-04-27 | 2005-04-27 | Bipolarized loaded antenna radiating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034456 CN1688067B (en) | 2005-04-27 | 2005-04-27 | Bipolarized loaded antenna radiating unit |
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| CN1688067A CN1688067A (en) | 2005-10-26 |
| CN1688067B true CN1688067B (en) | 2011-06-15 |
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| CN 200510034456 Expired - Fee Related CN1688067B (en) | 2005-04-27 | 2005-04-27 | Bipolarized loaded antenna radiating unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FI120522B (en) * | 2006-03-02 | 2009-11-13 | Filtronic Comtek Oy | A new antenna structure and a method for its manufacture |
| US7688271B2 (en) * | 2006-04-18 | 2010-03-30 | Andrew Llc | Dipole antenna |
| CN101483278B (en) * | 2008-01-09 | 2012-07-18 | 连展科技电子（昆山）有限公司 | Combined array antenna |
| US9407012B2 (en) * | 2010-09-21 | 2016-08-02 | Ruckus Wireless, Inc. | Antenna with dual polarization and mountable antenna elements |
| US8570233B2 (en) * | 2010-09-29 | 2013-10-29 | Laird Technologies, Inc. | Antenna assemblies |
| CN102522626A (en) * | 2011-11-30 | 2012-06-27 | 摩比天线技术（深圳）有限公司 | Dual-polarized antenna oscillator based on electronic government network |
| CN103178335A (en) * | 2011-12-20 | 2013-06-26 | 广东博纬通信科技有限公司 | Dual polarization broadband patch antenna |
| CN102709676B (en) * | 2012-05-18 | 2015-08-19 | 华为技术有限公司 | Antenna radiation unit and antenna for base station |
| CN102709712B (en) * | 2012-06-20 | 2014-11-26 | 上海东洲罗顿通信股份有限公司 | Dual-polarization indoor omni-directional ceiling antenna of long-term evolution mobile communication system |
| US9923280B2 (en) | 2012-10-30 | 2018-03-20 | Intel Corporation | Dual polarized dipole antenna |
| WO2015018313A1 (en) * | 2013-08-05 | 2015-02-12 | Jiangsu Enice Network Information Co., Ltd. | Antenna |
| CN104868228B (en) | 2014-02-25 | 2018-05-11 | 华为技术有限公司 | Dual polarized antenna and aerial array |
| CN104157972A (en) * | 2014-08-25 | 2014-11-19 | 罗森伯格技术（昆山）有限公司 | Dual-polarization vibrator |
| CN105870609B (en) * | 2016-06-22 | 2018-09-04 | 江苏亨鑫无线技术有限公司 | A kind of feeder equipment of integral type dual-polarization radiating unit |
| CN106654529B (en) * | 2016-12-29 | 2019-03-19 | 重庆邮电大学 | A kind of compact dual polarization micro-base station antenna of high-isolation |
| JP2020519136A (en) * | 2017-05-04 | 2020-06-25 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Dual polarization radiating element and antenna |
| EP3669421B1 (en) | 2017-09-12 | 2024-11-06 | Huawei Technologies Co., Ltd. | Dual-polarized radiating element and antenna |
| CN110048212B (en) * | 2019-05-13 | 2024-03-08 | 江苏亨鑫科技有限公司 | Miniaturized low-profile dual-polarized radiation unit |
| US11545743B2 (en) * | 2019-05-24 | 2023-01-03 | The Boeing Company | Additively manufactured mesh cavity antenna |
| WO2021128170A1 (en) * | 2019-12-26 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Base station antenna unit |
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| US20020135527A1 (en) * | 2001-03-20 | 2002-09-26 | Anthony Teillet | Antenna array |
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| CN1223480A (en) * | 1997-05-14 | 1999-07-21 | 安德鲁公司 | High isolation dual polarized antenna system using dipole radiating elements |
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| US20020135527A1 (en) * | 2001-03-20 | 2002-09-26 | Anthony Teillet | Antenna array |
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| CN1688067A (en) | 2005-10-26 |
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