CN101582538B - Array antenna - Google Patents
Array antenna Download PDFInfo
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- CN101582538B CN101582538B CN 200810099920 CN200810099920A CN101582538B CN 101582538 B CN101582538 B CN 101582538B CN 200810099920 CN200810099920 CN 200810099920 CN 200810099920 A CN200810099920 A CN 200810099920A CN 101582538 B CN101582538 B CN 101582538B
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Abstract
The invention relates to an array antenna which comprises a first antenna unit, a second antenna unit, a third antenna unit and a fourth antenna unit, wherein the second antenna unit is adjacent to the first antenna unit; the third antenna unit is adjacent to the second antenna unit; and the fourth antenna unit is adjacent to the third antenna unit and the first antenna unit and is opposite to thesecond antenna unit.
Description
Technical field
The invention relates to a kind of array antenna, particularly relevant for a kind of array antenna of isotropic directivity.
Background technology
Known antenna is the Zone Full arround will containing, and adopts the doublet of isotropic directivity more, and the gain of right doublet is not high, and transmission range is limited.For improving the gain of doublet, its size need to be strengthened.Take the doublet of 11dBi gain in the frequency range of 0.8GHz as example, its size will have more than 300 centimeters at least.
Known technology also discloses No. 20060273865 patents and 7,173, No. 572 disclosed microstrip antennas of patent of U.S.'s bulletin just like the U.S., and its combination needs anchor clamps or bracing frame to finish, and cost is higher, and volume is still larger.
Summary of the invention
A kind of array antenna that the present invention namely provides for wish solves the problem of known technology comprises the first antenna element, the second antenna element, third antenna unit and the 4th antenna element.This this first antenna element of the second antenna cell abutment.This second antenna element of this third antenna cell abutment, and in contrast to this first antenna element.The 4th antenna element is in abutting connection with this third antenna unit and this first antenna element, and in contrast to this second antenna element.
Use array antenna of the present invention, antenna structure that can small size provides comprehensive and good signal transmission effect.
Description of drawings
Fig. 1 shows array antenna of the present invention;
Fig. 2 is the structure that shows separately the first antenna element;
Fig. 3 a is for showing that the first antenna is in the structure of the first upper surface;
Fig. 3 b is for showing that the first antenna is in the structure of the first lower surface;
Fig. 4 is vertical plane (E-Plane) the field pattern figure of the array antenna of the demonstration embodiment of the invention;
Fig. 5 is horizontal plane (H-Plane) the field pattern figure of the array antenna of the demonstration embodiment of the invention;
Fig. 6 is the input reflection loss of the array antenna of the demonstration embodiment of the invention.
Embodiment
With reference to Fig. 1, it comprises one first antenna element 101, one second antenna element 102, a third antenna unit 103 and one the 4th antenna element 104 for showing the array antenna 100 of the embodiment of the invention.It is L shaped antenna structure that this first antenna element 101, this second antenna element 102, this third antenna unit 103 and the 4th antenna element 104 are the cross section.This second antenna element 102 is in abutting connection with this first antenna element 101.This third antenna unit 103 is in abutting connection with this second antenna element 102, and in contrast to this first antenna element 101.The 4th antenna element 104 is in abutting connection with this third antenna unit 103 and this first antenna element 101.
Below take the first antenna element 101 as example, the thin section structure of each antenna element is described, therefore wherein, the structure of this first antenna element 101, this second antenna element 102, this third antenna unit 103 and the 4th antenna element 104 is identical, does not give unnecessary details individually.
With reference to Fig. 2, it is the structure that shows separately this first antenna element 101, and it comprises a L shaped substrate 110, one first antenna 120 and one second antenna 130.L shaped substrate 110 comprises a first area 111 and a second area 112, these first area 111 vertical these second areas 112, this first area 111 comprises one first upper surface 113 and one first lower surface 114, and this second area 112 comprises one second upper surface 115 and one second lower surface 116.This first antenna 120 is located at this first area 111, and this second antenna 130 is located at this second area 112.
With reference to Fig. 3 a and 3b, the thin section structure of the first antenna 120 is described below.The first antenna 120 comprises one first grounding parts 121,2 first Departments of Radiation 122, one first feed-in conductor 124, a first signal line (not icon) and one first earth connection (not shown).The first grounding parts 121 connects above-mentioned these first Departments of Radiation 122, this first grounding parts 121 and the first Department of Radiation 122 are located on this first upper surface 113, this the first feed-in conductor 124 is located on this first lower surface 114,124 pairs of this first feed-in conductors should the first Department of Radiation 122, this the first earth connection (not shown) is electrically connected this first grounding parts 121, and this first signal line (not icon) is electrically connected this first feed-in conductor 124.
With reference to Fig. 3 b, the first feed-in conductor 124 comprises a load point 125, and load point 125 is between above-mentioned these first Departments of Radiation 122, and this first signal line (not icon) is electrically connected this first feed-in conductor 124 in this load point 125.Simultaneously, this first earth connection (not shown) also on this first grounding parts 121 to position that should load point 125, be electrically connected this first grounding parts 121.In one embodiment, this first earth connection can be integrated into a coaxial cable with this first signal line.
With reference to Fig. 3 a, each first Department of Radiation 122 comprises one first L shaped radiant element 1221 and one second L shaped radiant element 1222, this first L shaped radiant element 1221 comprises one first free end 1223, this second L shaped radiant element 1222 comprises one second free end 1224, this first free end 1223 and these the second free end 1224 each in the opposite direction extensions.This first L shaped radiant element 1221 can more comprise matching element 1225, and this second L shaped radiant element 1222 can more comprise matching element 1226, uses and obtains better laser propagation effect.
Has a slit 123 between this first L shaped radiant element 1221 and this second L shaped radiant element 1222.Collocation is with reference to 3b figure, and 124 pairs of this first feed-in conductors should the first L shaped radiant element 1221, this second L shaped radiant element 1222 and this slit 123.Thus, these the first feed-in conductor 124 these first Departments of Radiation 122 of induction coupling.
In the above-described embodiments, to describe as an example of the situation of two the first Departments of Radiation example, right its do not limit the present invention, use the array antenna of the embodiment of the invention and also can use single the first Department of Radiation, or the first antenna of the first Department of Radiation more than three carries out the signal transmission.
Structure with the first antenna element, the second antenna comprises one second grounding parts, 2 second Departments of Radiation, one second feed-in conductor, a secondary signal line and one second earth connection, this second grounding parts connects above-mentioned these second Departments of Radiation, this second grounding parts and above-mentioned these second Departments of Radiation are located on this second upper surface, this the second feed-in conductor is located on this second lower surface, corresponding the second Department of Radiation of this second feed-in conductor, this second earth connection is electrically connected this second grounding parts, and this secondary signal line is electrically connected this second feed-in conductor.Because structure and first antenna element of the second antenna are identical, therefore do not illustrate in addition and give unnecessary details.
In an embodiment of the present invention, the first grounding parts is connected in the mode of welding each other with the second grounding parts.Right its do not limit the present invention, and the first grounding parts can also integrally formed mode be connected with the second grounding parts, or the first grounding parts and the second grounding parts also can not be connected to each other.
The antenna element of the embodiment of the invention is used end-fire (endfire) doublet and is carried out the signal transmission.Use array antenna 100 of the present invention since with the first antenna element 101, one second antenna element 102, a third antenna unit 103 and one the 4th antenna element 104 respectively towards the four direction signal transmission, the signal around therefore can containing.
With reference to Fig. 4,5,6, Fig. 4 is vertical plane (E-Plane) the field pattern figure of the array antenna of the demonstration embodiment of the invention, Fig. 5 is horizontal plane (H-Plane) the field pattern figure of the array antenna of the demonstration embodiment of the invention, and Fig. 6 is the input reflection loss (S11) of the array antenna of the demonstration embodiment of the invention.By Fig. 4,5,6 as can be known, the antenna structure that the array antenna of the embodiment of the invention can small size provides comprehensive and good signal transmission effect.
Although the present invention discloses as above with concrete preferred embodiment; so it is not to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; still can do a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (5)
1. array antenna is characterized in that comprising:
The first antenna element comprises:
L shaped substrate comprises first area and second area, the vertical above-mentioned second area in above-mentioned first area, and above-mentioned first area comprises the first upper surface and the first lower surface, above-mentioned second area comprises the second upper surface and one second lower surface;
The first antenna, comprise the first grounding parts, the first Department of Radiation and the first feed-in conductor, above-mentioned the first grounding parts connects above-mentioned the first Department of Radiation, above-mentioned the first grounding parts and above-mentioned the first Department of Radiation are located on above-mentioned the first upper surface, above-mentioned the first feed-in conductor is located on above-mentioned the first lower surface, corresponding above-mentioned the first Department of Radiation of above-mentioned the first feed-in conductor; And
The second antenna, comprise the second grounding parts, the second Department of Radiation and the second feed-in conductor, above-mentioned the second grounding parts connects above-mentioned the second Department of Radiation, above-mentioned the second grounding parts and above-mentioned the second Department of Radiation are located on above-mentioned the second upper surface, above-mentioned the second feed-in conductor is located on above-mentioned the second lower surface, corresponding above-mentioned the second Department of Radiation of above-mentioned the second feed-in conductor;
The second antenna element, above-mentioned the first antenna element of above-mentioned the second antenna cell abutment;
The third antenna unit, above-mentioned the second antenna element of above-mentioned third antenna cell abutment;
The 4th antenna element, above-mentioned the 4th antenna element adjacency above-mentioned third antenna unit and above-mentioned the first antenna element, and in contrast to above-mentioned the second antenna element;
Wherein, above-mentioned the first antenna element, above-mentioned the second antenna element, above-mentioned third antenna unit and above-mentioned the 4th antenna element have same structure.
2. array antenna according to claim 1, it is characterized in that, above-mentioned the first Department of Radiation comprises the first L shaped radiant element and the second L shaped radiant element, the above-mentioned first L shaped radiant element comprises the first free end, the above-mentioned second L shaped radiant element comprises the second free end, and each extends above-mentioned the first free end and above-mentioned the second free end in the opposite direction.
3. array antenna according to claim 2, it is characterized in that, has a slit between the above-mentioned first L shaped radiant element and the above-mentioned second L shaped radiant element, corresponding the above-mentioned first L shaped radiant element of above-mentioned the first feed-in conductor, the above-mentioned second L shaped radiant element and above-mentioned slit.
4. array antenna according to claim 1 is characterized in that, above-mentioned the first Department of Radiation of above-mentioned the first feed-in conductor induction coupling.
5. array antenna according to claim 1 is characterized in that, above-mentioned the first grounding parts and above-mentioned the second grounding parts are connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810099920 CN101582538B (en) | 2008-05-16 | 2008-05-16 | Array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810099920 CN101582538B (en) | 2008-05-16 | 2008-05-16 | Array antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101582538A CN101582538A (en) | 2009-11-18 |
| CN101582538B true CN101582538B (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810099920 Active CN101582538B (en) | 2008-05-16 | 2008-05-16 | Array antenna |
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| CN (1) | CN101582538B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610929B (en) * | 2012-04-19 | 2014-06-04 | 广东博纬通信科技有限公司 | Dual-polarized broadband antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404318A (en) * | 2001-09-05 | 2003-03-19 | 西安海天天线科技股份有限公司 | Wideband omnidirectional collinear antenna array with downwards bevel beam and its realizing method |
| CN1599138A (en) * | 2004-07-28 | 2005-03-23 | 西安海天天线科技股份有限公司 | Four-polarization six-sector array omnidirectional antenna |
| JP2005117493A (en) * | 2003-10-09 | 2005-04-28 | Nippon Dengyo Kosaku Co Ltd | Frequency sharing nondirectional antenna and array antenna |
| WO2006078967A2 (en) * | 2005-01-21 | 2006-07-27 | Rotani, Inc. | Method and apparatus for an antenna module having a shield |
-
2008
- 2008-05-16 CN CN 200810099920 patent/CN101582538B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404318A (en) * | 2001-09-05 | 2003-03-19 | 西安海天天线科技股份有限公司 | Wideband omnidirectional collinear antenna array with downwards bevel beam and its realizing method |
| JP2005117493A (en) * | 2003-10-09 | 2005-04-28 | Nippon Dengyo Kosaku Co Ltd | Frequency sharing nondirectional antenna and array antenna |
| CN1599138A (en) * | 2004-07-28 | 2005-03-23 | 西安海天天线科技股份有限公司 | Four-polarization six-sector array omnidirectional antenna |
| WO2006078967A2 (en) * | 2005-01-21 | 2006-07-27 | Rotani, Inc. | Method and apparatus for an antenna module having a shield |
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| Publication number | Publication date |
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| CN101582538A (en) | 2009-11-18 |
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