CN102074780A - Three-mode dual-channel antenna for TD-GSM-LTE - Google Patents
Three-mode dual-channel antenna for TD-GSM-LTE Download PDFInfo
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- CN102074780A CN102074780A CN2010105989286A CN201010598928A CN102074780A CN 102074780 A CN102074780 A CN 102074780A CN 2010105989286 A CN2010105989286 A CN 2010105989286A CN 201010598928 A CN201010598928 A CN 201010598928A CN 102074780 A CN102074780 A CN 102074780A
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Abstract
The invention discloses a three-mode dual-channel antenna for time division-global system for mobile communications-long term evolution (TD-GSM-LTE), which mainly solves the problems that in modern communication, antennas of different systems are large in volume, have complicated structures and are difficult to erect. The three-mode dual-channel antenna is obtained by the integrated design of a TD-LTE antenna (1), a GSM900 antenna (2) and a GSM1800 antenna (3), namely the three antennas are fixed on a rear panel (4), the TD-LTE antenna (1) is positioned at the front half part of the rear panel (4), and the GSM900 antenna (2) and the GSM1800 antenna (3) are arranged at the rear half part of the rear panel (4) side by side, so that a delta-shaped arrangement structure is formed; the rear panel (4) adopts a rectangular plate with step-shaped flanges; a height adjustment block (6) is padded between the three antennas and the rear panel to adjust dipole surfaces of the three antennas to be on the same plane; cable heads of the three antennas are all fixed at the foremost end of the rear panel and are clearly marked; and a general antenna housing (5) is arranged outside the three antennas. The three-mode dual-channel antenna has a steady and compact structure, is convenient to install, and is superior to the requirement of engineering application in electrical indexes.
Description
Technical field
The present invention relates to antenna technology, is to adopt three kinds of wideband dual polarized antennas specifically, is combined into a kind of TD SDMA access-global system for mobile communications-Long Term Evolution TD-GSM-LTE three mould binary channels antennas.
Background technology
Development along with cellular mobile communication technology, the multiple technologies standard has appearred, comprise second generation mobile communication standard global system for mobile communications GSM, 3G mobile communication standard TD SDMA access TD-SCDMA, the 4th generation mobile communication standard TD-SCDMA Long Term Evolution TD-LTE etc.No matter adopt which kind of standard, honeycomb all is the basic skills of radio coverage design in the cellular mobile communication technology.The honeycomb of standard as shown in Figure 1.Base station based on honeycomb is used three sector configuration usually, and coverage is the clover shape, and promptly a kind of standard adopts 3 surface antennas in a base station, and wherein per 2 surface antennas are 120 degree angles.For example: China Mobile moves main at present GSM900, GSM1800 and the TD-LTE that uses, and the corresponding frequency range that covers is respectively 870-960MHz, 1710-1850MHz and 1880-2690MHz.Make whole base stations reach basic covering quality, must satisfy 3 antennas that cover GSM900 are installed on each base station at least, 3 antennas that cover GSM1800, and 3 antennas that cover TD-LTE.Like this, reach 9 even more at a base station internal antenna number.This antenna configurations mode has the following disadvantages:
One, increasing of antenna for base station can make electromagnetic radiation strengthen, thereby has influence on the healthy of peripheral crowd, so the resident produces strong opposition mood to increase antenna for base station in living environment.This makes base station selection, property negotiation be difficult for carrying out;
Its two because every surface antenna must set up separately, and links to each other with system equipment, this requires that bigger installing space is arranged on the base station, and needs to spend a large amount of time of installation personnel.
Its three, outside these were exposed to, the large-scale base station of setting up a plurality of antennas lacks aesthetic feeling, and was inharmonious with surrounding enviroment, can not reach the requirement that beautifies of urban environmental protection, therefore increasing antenna than the developed region, improved the base station network construction difficulty that becomes.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of TD-GSM-LTE three mould binary channels antennas are provided, to guarantee Stability Analysis of Structures, not change under the prerequisite of existing site and antenna set-point, replace 3 original surface antennas with a surface antenna, reduce installing engineering amount and installation difficulty, also make people be easier to accept the change of fewer antennas simultaneously surrounding enviroment.
The thinking that realizes the object of the invention is that three band antennas are carried out integrated design, has taked the mode of separate type assembling on structure treatment, is assembled into an integral body, realizes the frequency range of three stand-alone antennas with an integrated antenna.Its integrated antenna comprises: TD-LTE antenna, GSM900 antenna, GSM1800 antenna and backboard, wherein: described three kinds of antennas all are fixed on the backboard, and the TD-LTE antenna is positioned at the first half of backboard, GSM900 antenna and the GSM1800 antenna latter half at backboard placed side by side, form " product " font arrangement architecture, TD-LTE antenna and GSM900 antenna placed side by side and the distance between the GSM1800 antenna are greater than quarter-wave; Add between each antenna and the backboard and be lined with the height regulating block, with a period of time face of adjusting three kinds of antennas in one plane, backboard adopts the rectangular slab that has the step flanging; The cable end of three kinds of antennas all is fixed on the also clear foremost sign of backboard; A total radome is added a cover in the outside of three kinds of antennas.
Described step flanging is the low two parts in preceding high back, and the height of first half and the width ratio of backboard are 1: 3, and the ratio of the height of latter half and backboard width is 1: 10.
The present invention has following advantage:
1. the present invention is owing to carry out integrated discharging to three kinds of antennas, and compact conformation has reduced the area occupied on the iron tower of base station, adopts a pair of mounting bracket, only need to install once, minimizing by a relatively large margin field erected quantities.
2. the present invention is because the height by three kinds of antennas of height regulating block adjustment and adopt step flanging backboard, and the reflection and the coupling that produce each other after making that three antennas are compact and placing are subdued, and its electric index and former three surface antennas are consistent,
The present invention since all cable ends antenna foremost and sign is arranged clearly, reduce the on-the-spot probability of errors of installing, reduce the failure rate of project installation.
4. the present invention is owing to have only a radome to cover outside the antenna, and is lined with steady regulating block, guarantees that antenna body and the reliable of radome are connected, and profile cleaning more attractive in appearance.
Actual measurement shows, level intensity, the call completing rate that the present invention covers and normally switch index and all reached and former three kinds of coverage effects that antenna is identical.
Description of drawings
Fig. 1 is the honeycomb figure of existing base station;
Fig. 2 is TD-GSM-LTE three mould binary channels antenna structure views of the present invention;
Fig. 3 is the radome profile of TD-GSM-LTE three mould binary channels antennas of the present invention;
Fig. 4 is antenna standing wave of the present invention and isolates measured result figure;
Fig. 5 is antenna pattern measured result figure of the present invention.
Embodiment
With reference to Fig. 2 and Fig. 3, the present invention mainly is made up of TD-LTE antenna 1, GSM900 antenna 2, GSM1800 antenna 3, backboard 4 and radome 5.Wherein TD-LTE antenna 1, GSM900 antenna 2 and GSM1800 antenna 3 these three kinds of antennas are placed on the top of backboard 4, the mode of combination is, TD-LTE antenna 1 is at the first half of backboard 4, GSM900 antenna 2 and GSM1800 antenna 3 latter halfs at backboard 4 placed side by side form " product " font arrangement architecture.Reserve certain space in the middle of two parts antenna of front and back.Because the wavelength of GSM900 antenna is long, and the coupling that the existence between the TD-LTE antenna is stronger, therefore will leave certain space between GSM900 antenna, GSM1800 antenna and the TD-LTE antenna placed side by side, the size in this space needs greater than 1/4th of antenna wavelength.Backboard 4 is a rectangular aluminum sheet, and width is slightly larger than the Breadth Maximum of antenna.Two long sidebands of this rectangle have trapezoidal flanging 7, the trapezoidal two parts at the end, high back before the shape of this flanging is divided into, the width ratio of the height of first half and backboard 4 is 1: 3, the ratio of the height of latter half and backboard 4 width is 1: 10, the reflections affect that backboard is produced antenna be reduced to engineering use in the acceptable scope.Be lined with height regulating block 6 between antenna and backboard 4, the height of the height regulating block 6 of each antenna correspondence has nothing in common with each other, and a period of time face that makes three kinds of antennas by the height of adjusting height regulating block 6 in one plane.All have circular hole on backboard 4, TD-LTE antenna 1, GSM900 antenna 2 and the GSM1800 antenna 3, press-fit rivet coating nut on the circular hole.Bolt passes backboard 4, height regulating block 6 and antenna, and three parts are coupled together.The cable end of three kinds of antennas is fixed on backboard 4 foremost with screw, and is divided into two rows, and last row is the cable end of TD-LTE antenna 1, and following row is the cable end of GSM900 antenna 2 and GSM1800 antenna 3.Connect by coaxial wire between cable end and the antenna.In order not influence the electric index of TD-LTE antenna, be positioned at the GSM900 antenna 2 of backboard 4 latter halfs and the coaxial wire of GSM1800 antenna 3 and pass from the below of TD-LTE antenna 1, be fixed on a following row of TD-LTE antenna 1 cable end by screw.Radome 5 is the rectangle tubbiness, has circular hole below.Backboard 4 is lined with steady regulating block 8 with radome 5, is used for adjusting the slit between backboard and the radome, increases the integrally-built stability of antenna.Backboard 4 passes steady regulating block 8 by bolt and is threaded with radome 5.
Effect of the present invention can further specify by measured result:
When the antenna standing wave was too high, the gain of antenna had loss, thereby influenced antenna covering level intensity in actual use, and this can make the cutting off rate in the communication process increase.In addition, because modern mobile communication all is to receive simultaneously and transmit in order to increase power system capacity, therefore the isolation to antenna also has certain requirement.At present engineering requires standing wave less than 1.5 in using, and isolation is less than-28dB.Fig. 4 is standing wave and the isolation curve that the present invention tests under the microwave dark room environment, two of the first half curves are to be respectively the standing wave curve of two different polarization of the present invention among the figure, the curve of the latter half is two isolations between the different polarization among the figure, measured result of the present invention as can be seen is a standing wave below 1.3, and isolation is less than-30dB.
Secondly, because in same base station, angled setting up between antenna and the antenna, close together each other, therefore, the coupling of signal when using at the same time in order to reduce different antennae requires before and after the directional diagram of antenna than less than-25dB.Fig. 5 is the present invention's horizontal plane of surveying under the test environment of far field and the normalized radiation pattern of vertical plane, and as can be seen from the figure, in the backward radiation scopes of 150 degree-210 degree, the front and back of directional diagram are than less than-30dB.
Can find out that from measured result electric index of the present invention all is better than present engine request, can well satisfy the needs that engineering is used.
Claims (6)
1. TD-GSM-LTE three mould binary channels antennas, comprise TD-LTE antenna (1), GSM900 antenna (2), GSM1800 antenna (3) and backboard (4), it is characterized in that: described three kinds of antennas all are fixed on the backboard (4), and TD-LTE antenna (1) is positioned at the first half of backboard (4), GSM900 antenna (2) and GSM1800 antenna (3) latter half in backboard (4) placed side by side form " product " font arrangement architecture; Backboard (4) adopts the rectangular slab that has the step flanging; Add between three kinds of antennas and the backboard and be lined with height regulating block (6), in one plane with a period of time face of adjusting three kinds of antennas; The cable end of three kinds of antennas all is fixed on the also clear foremost sign of backboard; A total radome (5) is added a cover in the outside of three kinds of antennas.
2. the three mould binary channels antennas of TD-GSM-LTE according to claim 1 is characterized in that: be positioned at the TD-LTE antenna (1) of backboard (4) first half and be positioned at the GSM900 antenna (2) of backboard (4) latter half side by side and the distance between the GSM1800 antenna (3) greater than quarter-wave.
3. the three mould binary channels antennas of TD-GSM-LTE according to claim 1, it is characterized in that: the step flanging (7) of backboard (4) is located on two long limits of rectangle, and the width ratio of the height of first half and backboard (4) is 1: 3, and the ratio of the height of latter half and backboard (4) width is 1: 10.
4. the three mould binary channels antennas of TD-GSM-LTE according to claim 1, it is characterized in that: be connected by coaxial wire between the cable end of TD-LTE antenna (1), GSM900 antenna (2) and GSM1800 antenna (3) and the antenna, and the cable end of TD-LTE antenna (1) is with being fixed on backboard (4) upper end position, the coaxial wire of GSM900 antenna (2) and GSM1800 antenna (3) passes from the below of TD-LTE antenna (1), is fixed on the TD-LTE antenna cable subfacies of backboard (4).
5. the three mould binary channels antennas of TD-GSM-LTE according to claim 1, it is characterized in that: radome (5) is the rectangle tubular, has circular hole below.
6. the three mould binary channels antennas of TD-GSM-LTE according to claim 5, it is characterized in that: be lined with steady regulating block (8) between radome (5) and the backboard (4), backboard (4) passes steady regulating block (8) by bolt and is connected with radome (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010598928 CN102074780B (en) | 2010-12-21 | 2010-12-21 | Three-mode dual-channel antenna for TD-GSM-LTE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010598928 CN102074780B (en) | 2010-12-21 | 2010-12-21 | Three-mode dual-channel antenna for TD-GSM-LTE |
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| Publication Number | Publication Date |
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| CN102074780A true CN102074780A (en) | 2011-05-25 |
| CN102074780B CN102074780B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010598928 Expired - Fee Related CN102074780B (en) | 2010-12-21 | 2010-12-21 | Three-mode dual-channel antenna for TD-GSM-LTE |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703080A (en) * | 2016-03-23 | 2016-06-22 | 武汉虹信通信技术有限责任公司 | Multi-system and multi-port base station antenna common reflection board |
| CN106301611A (en) * | 2015-05-15 | 2017-01-04 | 神讯电脑(昆山)有限公司 | Antenna set-point and the method for searching of noise spot |
| CN106654596A (en) * | 2016-12-22 | 2017-05-10 | 京信通信系统（中国）有限公司 | Antenna reflector plate and multi-system common exhaust pipe antenna |
| CN109212487A (en) * | 2018-09-27 | 2019-01-15 | 芜湖博高光电科技股份有限公司 | A kind of TR component of two-band one |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246998A (en) * | 2007-12-12 | 2008-08-20 | 西安海天天线科技股份有限公司 | GSM/TD-SCDMA dual-module base station antenna |
| US20100271282A1 (en) * | 2009-04-22 | 2010-10-28 | Samsung Electronics Co., Ltd. | Embedded antenna apparatus |
-
2010
- 2010-12-21 CN CN 201010598928 patent/CN102074780B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246998A (en) * | 2007-12-12 | 2008-08-20 | 西安海天天线科技股份有限公司 | GSM/TD-SCDMA dual-module base station antenna |
| US20100271282A1 (en) * | 2009-04-22 | 2010-10-28 | Samsung Electronics Co., Ltd. | Embedded antenna apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301611A (en) * | 2015-05-15 | 2017-01-04 | 神讯电脑(昆山)有限公司 | Antenna set-point and the method for searching of noise spot |
| CN106301611B (en) * | 2015-05-15 | 2019-06-25 | 神讯电脑(昆山)有限公司 | The method for searching of antenna set-point and noise spot |
| CN105703080A (en) * | 2016-03-23 | 2016-06-22 | 武汉虹信通信技术有限责任公司 | Multi-system and multi-port base station antenna common reflection board |
| CN106654596A (en) * | 2016-12-22 | 2017-05-10 | 京信通信系统（中国）有限公司 | Antenna reflector plate and multi-system common exhaust pipe antenna |
| CN109212487A (en) * | 2018-09-27 | 2019-01-15 | 芜湖博高光电科技股份有限公司 | A kind of TR component of two-band one |
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| CN102074780B (en) | 2013-06-12 |
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Owner name: XI'AN SUNNADA HAITIAN ANTENNA CO., LTD. Free format text: FORMER OWNER: XI'AN HAITIAN ANTENNA SCI-TECH CO., LTD. Effective date: 20130503 |
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Free format text: CORRECT: ADDRESS; FROM: 710065 XI'AN, SHAANXI PROVINCE TO: 710000 XI'AN, SHAANXI PROVINCE |
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Effective date of registration: 20130503 Address after: 710000 No. three, No. 68, hi tech Zone, Shaanxi, Xi'an Applicant after: Xi'an Haitian Antenna Technologies Co., Ltd. Address before: 710065 No. 3, No. 68, hi tech Zone, Shaanxi, Xi'an Applicant before: Xi'an Haitian Antenna Sci-tech Co., Ltd. |
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Granted publication date: 20130612 Termination date: 20161221 |