CN100487978C - Double-polarized-antenna plane feeder-piece and double polarized antenna using same - Google Patents
Double-polarized-antenna plane feeder-piece and double polarized antenna using same Download PDFInfo
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- CN100487978C CN100487978C CNB2005101004142A CN200510100414A CN100487978C CN 100487978 C CN100487978 C CN 100487978C CN B2005101004142 A CNB2005101004142 A CN B2005101004142A CN 200510100414 A CN200510100414 A CN 200510100414A CN 100487978 C CN100487978 C CN 100487978C
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- planar
- polarized antenna
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- dual polarized
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Abstract
This invention discloses a plane feed plate of a double polarized antenna and a double polarized antenna using said plate, in which, the opposite edges of the plate have humps in symmetrically arranged in positions and diameters, said double polarized antenna includes a plane radiation unit set on a reflection board including an upper and a lower feed plates, at least one of which is said double polarized antenna plane feed plate, which improves the aberration of the direction graph of the antenna at the same time when increasing the isolation degree of the feed ports of the antenna.
Description
Technical field
The present invention relates to the antenna structure of wireless communication field, more particularly, relate to a kind of planar radiation chip architecture and the dual polarized antenna that uses with the planar radiation sheet of this structure of when improving the dual polarized antenna isolation, improving antenna pattern distortion.
Background technology
Along with the development of mobile communication technology, also more and more higher to the requirement of antenna for base station, the interport isolation of dual polarized antenna particularly.As planar structure cellular array antenna, the interport isolation of cell design has directly influenced the interport isolation of aerial array.And the method that improves the interport isolation of dual-polarized antenna array at present has three kinds of forms: a kind of is to design the device that improves isolation on the unit; A kind of is to add the device that improves isolation between the unit; Another is to add the design that improves isolation in feeding network.And in an array antenna, these three kinds of methods often are overlapped use.But improve isolation with network design, be subjected to the restriction of bandwidth, between array element, add spacer assembly, can influence the directional diagram control effect of antenna again, so the device of design raising interport isolation becomes first-selection in the unit.
Shown in Figure 1 is existing a kind of planar radiation chip architecture of improving the antenna current feed port isolation commonly used, and this planar radiation sheet is designed the rectangle of two symmetries and isolated breach on two relative limits of plane; Shown in Figure 2 is the existing another kind of planar radiation chip architecture of improving the antenna current feed port isolation commonly used, and this planar radiation sheet is designed the rectangle of two symmetries and isolated projection on two relative limits of plane.
There is following shortcoming in the structure that existing planar radiation sheet improves the antenna current feed port isolation: if length sides and width edge that isolation breach or isolation are given prominence to are excessive, will cause the distortion of antenna pattern, particularly, to strengthen the design difficulty of directional diagram for array antenna, greatly to the secondary lobe of directional diagram, null value influence.
And also there is the problem of pattern distortion in the antenna that adopts existing structure planar radiation sheet.
Summary of the invention
One of the technical problem to be solved in the present invention is, a kind of dual polarized antenna planar radiation sheet is provided, and when improving the antenna current feed port isolation, improves the distortion of antenna pattern.
Two of the technical problem to be solved in the present invention is, a kind of dual polarized antenna that uses this planar radiation sheet is provided, and has high feed port isolation and can improve antenna pattern distortion.
The present invention solves the technical scheme that one of its technical problem adopts: construct a kind of dual polarized antenna planar radiation sheet, comprise paired relative edge and, it is characterized in that: have the position on the relative edge of described planar radiation sheet and become axisymmetric planar projection with shape by the radiation fin plane that described relative edge surrounds.
In dual polarized antenna planar radiation sheet of the present invention, described planar projection is rectangular protrusions, half-circle projection or half elliptic projection.
In dual polarized antenna planar radiation sheet of the present invention, one group of relative edge or two groups of relative edges of described planar radiation sheet have planar projection.
In dual polarized antenna planar radiation sheet of the present invention, the projected direction of the planar projection on described one group of relative edge is identical or opposite, and the projected direction of the planar projection between described two groups of relative edges is identical or opposite.
In dual polarized antenna planar radiation sheet of the present invention, the planar projection on the described relative edge is one or more groups.
Two technical schemes that adopted that the present invention solves its technical problem are: construct a kind of dual polarized antenna that uses dual polarized antenna planar radiation sheet as claimed in claim 1, comprise the planar radiation unit that is arranged on the reflecting plate, described planar radiation unit comprises radiation fin up and down, and it is characterized in that: a slice radiation fin is described dual polarized antenna planar radiation sheet at least.
In dual polarized antenna of the present invention, the following radiation fin of described planar radiation unit is described dual polarized antenna planar radiation sheet.
In dual polarized antenna of the present invention, described planar radiation unit is along described reflection plate arrays forming array antenna.
Compared with the prior art, implement dual polarized antenna planar radiation sheet of the present invention and use the dual polarized antenna of this radiation fin, have following beneficial effect:
1. further improved the antenna port isolation;
2. improved the distortion of antenna pattern, helped in the Antenna Design realizing the design control of directional diagram, as figuration etc.;
3. the planar radiation cellular construction is compact succinct.
Description of drawings
Fig. 1 is a kind of planar radiation sheet commonly used in the existing dual polarized antenna;
Fig. 2 is an another kind of planar radiation sheet commonly used in the existing dual polarized antenna;
Fig. 3 is a kind of execution mode of planar radiation sheet of the present invention;
Fig. 4 is the planar projection enlarged drawing of planar radiation sheet of the present invention;
Fig. 5 is the dual polarization antenna radiation unit that is made of planar radiation sheet of the present invention;
The array antenna that Fig. 6 is made up of the planar radiation unit that planar radiation sheet of the present invention constitutes.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Fig. 3 shows a kind of execution mode of planar radiation sheet of the present invention, radiation fin comprises paired relative edge and the radiation fin plane that is surrounded by the relative edge, on a pair of relative edge of planar radiation sheet 1, planar projection 2 is set, the position of this planar projection 2 becomes axial symmetry with shape, the projection direction of two planar projection 2 can be identical, also can be opposite.
(not shown) in the another kind of execution mode of planar radiation sheet of the present invention, on two couples of relative edges of planar radiation sheet 1, planar projection 2 is set respectively, the position of planar projection 2 becomes axial symmetry respectively with shape, the projection direction of each relative planar projection 2 can be identical, also can be opposite; The projection direction of two pairs of planar projection 2 can be identical, also can be opposite.
The shape of planar projection 2 can be rectangle, square, semicircle, semiellipse, denation or trapezoidal protrusion or other shapes.
Enlarged drawing when Fig. 4 planar radiation sheet of the present invention adopts the rectangle plane projection, the long limit of rectangle plane projection, broadside and projection degree of depth limit are respectively 22,23,21.
Fig. 5 shows a kind of embodiment of planar radiation dual polarized antenna.Keep going up radiation fin 3, following radiation fin 1 and reflecting plate 100 by support column 5 between last radiation fin 3 and the following radiation fin 1 and be parallel to each other, and two feed port 4 are set on radiation fin 1, radiation fin and reflecting plate 100 carry out ground connection by earthing rod 6 up and down.Last radiation fin 3 and following radiation fin 1 constitute a planar radiation unit, and are connected on the reflecting plate 100.
In the another kind of embodiment of planar radiation dual polarized antenna, can adopt radiation fin 3 to be above-mentioned dual polarization planar radiation sheet, following radiation fin 1 is the common plane radiation fin.
As shown in Figure 6, array is formed at reflecting plate 100 upper edge reflecting plates 100 in planar radiation unit 200, constitutes the plane double polarization array antenna.Reflecting plate 100 has flanging 101, also is provided with position, cable end hole 102 on the flanging at two ends.
Experiment showed, on flat plane antenna radiating element radiation fin, to suppress a symmetrical rectangular protrusions 2 that improve the interport isolation of planar radiation unit by the electric field perturbations of projection, in the 450M frequency range, the interport isolation of antenna can reach more than the 30dB; And adopting existing breach or nib structure at the opposite side of radiation fin, the interport isolation of antenna can only be beated about 25dB, and is difficult to further improve.
In addition, in the network optimization of antenna for base station, directional diagram to antenna requires more and more higher, figuration effect as directional diagram, last first secondary lobe requires to be suppressed to greater than 20dB, first null value requires to fill less than 15dB down, like this, in the design of aerial array, just need control, and the phase place of unit can be subjected to some the external chaff interference influences in the aerial array, the spacer assembly that adds on the reflecting plate as aerial array etc. the feed amplitude and the phase place of radiating element, the interference of these phase places is difficult to carry out emulation accurately in the optimization of software, so just increased the difficulty of Antenna Design.The present invention has further improved the antenna port isolation by adopting new radiation fin structure, and adopts the antenna radiation unit of high-isolation, just reduces the influence to the antenna pattern effect, thereby has reduced the difficulty in the shaped aerial design.
As seen, compared with prior art, useful technique effect of the present invention is as follows:
1. further improved the antenna port isolation;
2. improve the distortion of antenna radiation pattern, be conducive to realize in the Antenna Design design control of directional diagram System is such as figuration etc.;
3. the external shape of planar radiation unit is not carried out bigger change, satisfies the cellular construction compactness, Succinct requirement;
4. the present invention is not only applicable to probe feed, is applicable to the structure of other planar-fed yet, as opens Groove coupling excitation structure.
Claims (8)
1, a kind of dual polarized antenna planar radiation sheet comprises paired relative edge and by the radiation fin plane that described relative edge surrounds, it is characterized in that: the relative edge of described planar radiation sheet is provided with the position and becomes axisymmetric planar projection with shape.
2, dual polarized antenna planar radiation sheet according to claim 1 is characterized in that: described planar projection is rectangular protrusions, half-circle projection, half elliptic projection, denation or trapezoidal protrusion.
3, dual polarized antenna planar radiation sheet according to claim 1 and 2 is characterized in that: one group of relative edge of described planar radiation sheet or organize the relative edge more and have planar projection.
4, dual polarized antenna planar radiation sheet according to claim 3 is characterized in that: the projected direction of the planar projection on described one group of relative edge is identical or opposite, and the projected direction of the planar projection between described many group relative edges is identical or opposite.
5, dual polarized antenna planar radiation sheet according to claim 4 is characterized in that: the planar projection on the described relative edge is one or more groups.
6, a kind of dual polarized antenna that uses dual polarized antenna planar radiation sheet as claimed in claim 1, comprise the planar radiation unit that is arranged on the reflecting plate, described planar radiation unit comprises radiation fin up and down, and it is characterized in that: a slice radiation fin is described dual polarized antenna planar radiation sheet at least.
7, dual polarized antenna according to claim 6 is characterized in that: the following radiation fin of described planar radiation unit is described dual polarized antenna planar radiation sheet.
8, according to claim 6 or 7 described dual polarized antennas, it is characterized in that: described planar radiation unit is along described reflection plate arrays forming array antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101004142A CN100487978C (en) | 2005-10-15 | 2005-10-15 | Double-polarized-antenna plane feeder-piece and double polarized antenna using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101004142A CN100487978C (en) | 2005-10-15 | 2005-10-15 | Double-polarized-antenna plane feeder-piece and double polarized antenna using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1851980A CN1851980A (en) | 2006-10-25 |
| CN100487978C true CN100487978C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101004142A Expired - Fee Related CN100487978C (en) | 2005-10-15 | 2005-10-15 | Double-polarized-antenna plane feeder-piece and double polarized antenna using same |
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| CN (1) | CN100487978C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106602232B (en) * | 2016-11-24 | 2019-06-18 | 广东通宇通讯股份有限公司 | Double frequency high gain medium resonance array antenna |
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- 2005-10-15 CN CNB2005101004142A patent/CN100487978C/en not_active Expired - Fee Related
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| CN1851980A (en) | 2006-10-25 |
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| C14 | Grant of patent or utility model | ||
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Owner name: SHENZHEN HUAWEI AGINITRUST ELECTRIC CO., LTD. Free format text: FORMER OWNER: HUAWEI TECHNOLOGY CO LTD Effective date: 20120214 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20120214 Address after: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee after: Shenzhen Huawei Anjiexin Electrical Co., Ltd. Address before: 518129 Buji Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20131015 |