CN102610928B - The low section combined type of a kind of wide-band dual polarization radio communication base station array antenna - Google Patents
The low section combined type of a kind of wide-band dual polarization radio communication base station array antenna Download PDFInfo
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- CN102610928B CN102610928B CN201210089475.3A CN201210089475A CN102610928B CN 102610928 B CN102610928 B CN 102610928B CN 201210089475 A CN201210089475 A CN 201210089475A CN 102610928 B CN102610928 B CN 102610928B
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Abstract
The invention discloses the low section combined type of a kind of wide-band dual polarization radio communication base station array antenna. Comprise: the dual-polarized array unit of various ways; Combined type array element feed method, combined type feeding network, array element power division and impedance matching methods based on transmission line theory. It is characterized in that: described array element is the combined type array antenna of the angle feedback dual polarised radiation chip unit composition of four kinds of forms; Partial array unit adopts the mode of direct feed, and other array elements adopt coupling feed way; Whole array is divided into multiple series feed subarrays, then adopt and the method for presenting by multiple series feed subarrays composition combined type feed array antennas; On feed transmission line, utilize transmission line theory to adopt the method for change line characteristic impedance to carry out power division and the designing impedance matching of array element. This array antenna has the advantages such as broadband, dual polarization, low section, shaped-beam.
Description
Technical field
The present invention relates to a kind of radio communication base station array antenna. Be specifically a kind of wide-band, dual polarization,Low section radio communication base station array antenna.
Background technology
Radio communication base station array antenna need to meet specific technical specification, as broadband, high efficiency, lowSection, light weight etc. For large-scale WLAN (WLAN) array antenna for base station, for realityShow dual polarization and broadband, tend to adopt baroque Wideband dual-polarization radiating unit, all array listsUnit is the array element of same form; If pair array antenna carries out beam forming processing, transmission networkNetwork can adopt and present or and feedback and the combined type feeding classification of series feed mixing. Simultaneously in order to carry out impedance matching,Generally also can on feeding network, add matching network, will cause so whole array antenna structure complexity,Or even sandwich construction, cause that loss increase, reliability reduce, cost increases. How to simplify dual polarization,Shaped-beam WLAN base station array antenna structure, reduces feeder loss, reduces the manufacturing cost of antenna and carryThe reliability of high array antenna is the technical barrier facing in the design of radio communication base station array antenna.
Summary of the invention
Problem to be solved by this invention, is to overcome the defect that prior art exists, and has proposed a kind of widebandThe low section combined type of section dual polarization radio communication base station array antenna, has wide impedance operator, can be bipolarThe beam shape that chemical industry is done, section is low, have figuration. Simple in structure, with low cost, gain advantages of higher.
Wide-band dual polarization of the present invention low section combined type radio communication base station array antenna (being called for short this antenna),Comprise: the dual-polarized array unit of various ways; Hybrid array element feed method; Combined type transmission networkNetwork; Array element power division and impedance matching methods based on transmission line theory. It is characterized in that: described battle arrayColumn unit is the combined type array antenna of the angle feedback dual polarised radiation chip unit composition of four kinds of forms; The 1st kindThe paster of form is that the paster of fluting loading square patch, the 2nd kind of form is fluting and afterbody rectangle loading sideThe paster of shape paster, the 3rd kind of form is that the paster that fluting and two ends load square patch, the 4th kind of form isFluting and input taper load square patch; In the feeding classification of array element, adopt hybrid feedMethod, partial array unit adopts the mode of direct feed, and other array elements adopt coupling feed way;Whole permutation is divided into multiple series feed subarrays, then adopts the combined type feeding network pair of going here and there and present method compositionEach subarray carries out feed; On feed transmission line, utilize transmission line theory to adopt and change transmission line characteristics resistanceAnti-method, array is carried out in the input impedance that increases the method change array element of tuning band on transmission lineThe power division of unit and designing impedance matching.
The present invention has wide impedance operator, and impedance bandwidth can reach for 23% (being less than 1.5 measurements with standing-wave ratio),Directional diagram bandwidth can reach 17%. Can be simultaneously with positive and negative 45 degree linear polarization modes work, wave beam can be withShape design need to be carried out, the feature of Sidelobe, high-gain can be realized. Simultaneously simple in structure, only need beOn one bar printing plate, can complete the making of whole antenna. There is spy cheap for manufacturing cost, reliability is highPoint. Antenna height only centered by 0.06 wavelength of frequency. Have the advantages that section is low, be applicable to being arranged on differenceOccasion. Utilize this array antenna can further improve the performance of whole wireless communication system.
Brief description of the drawings
Fig. 1 is the overall structure figure of array antenna of the present invention, wherein: (a) be array element top view, (b)It is array element side view. In figure, 1 is that the angle feedback dual polarised radiation paster, 2 of the 1st kind of form is the 2nd kind of shapeThe angle feedback dual polarised radiation paster, 3 of formula is that the angle feedback dual polarised radiation paster, 4 of the 3rd kind of form is the 4th kindThe angle feedback dual polarised radiation paster of form. The 5th, printed layers, the 6th, the ground plane, the 7th of printed panel, air layer, 8Dielectric material, the 9th, the feed transmission line, the 10th of printed layers, excitation port.
Fig. 2 is the standing-wave ratio figure in the whole frequency band of measuring.
Fig. 3 is array antenna azimuth plane and the attached antenna pattern of facing upward of measuring. Wherein: (a) be 5100MHzThe azimuth plane of the array antenna that frequency is corresponding and attached antenna pattern of facing upward. (b) be 5450MHz frequency correspondenceAzimuth plane and the attached antenna pattern of facing upward of array antenna. (c) be the array sky that 5900MHz frequency is correspondingThe azimuth plane of line and attached antenna pattern of facing upward.
Detailed description of the invention
Below by accompanying drawing 1, the present invention and advantage thereof are described further.
Contrast Fig. 1, this array antenna is printed on epoxy substrate, and upper layer is array element and the feed of printingNetwork, is PTFE medium substrate below, is and then air layer, and the most beneath is the ground plane of printingLayer. Dielectric substrate is the combined type medium substrate of air and PTFE medium substrate composition. Array elementIt is the angle feedback dual polarised radiation paster of four kinds of forms. Totally 40 array elements, a half-cell adopts direct feedMode, second half array element (light unit in figure) adopt coupling feed mode, by adjust couplingThe size of joint close gap can regulate amplitude and the phase value of the signal of each array element distribution, thereby reaches rippleThe object of bundle figuration. Tuning on the transmission line simultaneously also connecting by the each array element of adjusting changes everyThe input impedance of individual array element, thus reach amplitude and the phase adjusted of each array element being carried out to powerObject. A total array antenna is divided into 16 series feed subarrays. By going here and there and mixing feeding classification by allGroup of subarrays is synthesized one totally. By regulating between input port and array element regulating block on transmission lineSize and size can realize the impedance matching in input port.
As shown in Figure 2, the antenna standing wave ratio of measurement is less than 1.5 in whole frequency band, has wide band characteristic.All being manufactured on a medium substrate completes simultaneously, increased the reliability of system. Dual polarization work makesOne width antenna has the function of two width antennas. Reduce cost. The antenna pattern of measuring as shown in Figure 3.Therefrom can find out that the average antenna gain of antenna in be less than-12dB of its minor level, whole bandwidth is about20.5dBi, illustrates that antenna efficiency is reasonable. Above-mentioned test result has illustrated the validity of array antenna design.
Claims (1)
1. the low section combined type of a wide-band dual polarization radio communication base station array antenna, comprising: multiple shapeThe dual-polarized array unit of formula, combined type feeding network, is characterized in that: described array element is four kinds of formsThe combined type array antenna of angle feedback dual polarised radiation chip unit composition, partial array unit adopts directly and presentsThe mode of electricity, other array elements adopt coupling feed way, adopt the combined type of going here and there and presenting method compositionFeeding network carries out feed to each series feed subarray, adds tuning bringing and change array list on feed transmission linePower division and the designing impedance matching of unit are carried out array element by the be coupled spacing in gap of control simultaneouslyInput impedance is adjusted, and carries out the power division of array element.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210089475.3A CN102610928B (en) | 2012-03-30 | 2012-03-30 | The low section combined type of a kind of wide-band dual polarization radio communication base station array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210089475.3A CN102610928B (en) | 2012-03-30 | 2012-03-30 | The low section combined type of a kind of wide-band dual polarization radio communication base station array antenna |
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| Publication Number | Publication Date |
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| CN102610928A CN102610928A (en) | 2012-07-25 |
| CN102610928B true CN102610928B (en) | 2016-05-11 |
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| CN201210089475.3A Active CN102610928B (en) | 2012-03-30 | 2012-03-30 | The low section combined type of a kind of wide-band dual polarization radio communication base station array antenna |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816718B (en) * | 2017-01-20 | 2020-09-11 | 电子科技大学 | Low sidelobe sharp cutoff flat-top beam base station antenna and design method |
| CN111052509B (en) * | 2017-08-30 | 2022-03-29 | 株式会社村田制作所 | Antenna module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549593U (en) * | 2009-10-22 | 2010-08-11 | 海宁胜百信息科技有限公司 | Double-polarization micro-strip array antenna |
| CN202817194U (en) * | 2012-03-30 | 2013-03-20 | 星动通讯科技（苏州）有限公司 | A wireless communication base station array antenna with wide frequency band, dual polarization, and low profile |
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2012
- 2012-03-30 CN CN201210089475.3A patent/CN102610928B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549593U (en) * | 2009-10-22 | 2010-08-11 | 海宁胜百信息科技有限公司 | Double-polarization micro-strip array antenna |
| CN202817194U (en) * | 2012-03-30 | 2013-03-20 | 星动通讯科技（苏州）有限公司 | A wireless communication base station array antenna with wide frequency band, dual polarization, and low profile |
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| CN102610928A (en) | 2012-07-25 |
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Address after: 215537 Room 601, 1 Chuang Chuang garden, 9 Sihai Road, Changshu economic and Technological Development Zone, Jiangsu. Patentee after: Tian Tong Sheng Bang communication technology (Suzhou) Co., Ltd. Address before: 215500 Fuhua Road 15, Changshou City economic and Technological Development Zone, Jiangsu Patentee before: Xingdong Communication Technology (Suzhou) Co., Ltd. |
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