CN101986464B - Array antenna - Google Patents
Array antenna Download PDFInfo
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- CN101986464B CN101986464B CN200910190448.3A CN200910190448A CN101986464B CN 101986464 B CN101986464 B CN 101986464B CN 200910190448 A CN200910190448 A CN 200910190448A CN 101986464 B CN101986464 B CN 101986464B
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- transmission network
- radiation conductor
- substrate
- ground plane
- conductor
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- Waveguide Aerials (AREA)
Abstract
The invention relates to an array antenna which comprises a substrate, a plurality of radiation conductors, a first transmission network, a second transmission network, a supporting part and a ground plane; the plurality of the radiation conductors are configured on the surface of the substrate in the form of symmetrical arrangement; the first transmission network is respectively connected with each radiation conductor and comprises a common first feed point; the second transmission network is also respectively connected with each radiation conductor and comprises a common second feed point, wherein the plurality of the radiation conductors, the first transmission network and the second transmission network are all arranged on the same surface of the substrate, the first transmission network and the second transmission network are connected with each radiation conductor, an included angle is formed at the junction, and the included angle is in the range of 80 degrees to 100 degrees; the supporting part is used for bearing the substrate; and the ground plane is used for assembling the supporting part.
Description
[technical field under invention]
The present invention system, about a kind of array antenna, means that radiation conductor and transmission network are all arranged at the array antenna structure on same surface especially.
[prior art]
In conventional array antenna technology, be that identical individual antenna radiation conductor is formed to structure of arrays side by side, distance is each other 0.5～0.9 of radio signals wavelength, overlooks from top to bottom, and the formed emittance of array antenna can be scattered in 8-shaped.With on the online vertical both direction of aerial radiation conductor, user can receive at identical time point the signal from two antennas, therefore the phase place of these two signals is the same, and the transmission of radio wave distance also farthest, when two synchronous signals are combined into after single signal, intensity can be changed into the twice of single signal, and signal has the gain lifting of 3dB.
Traditional double polarization array antenna design refers to Fig. 1, is the top perspective view of No. 5923296 patent of United States Patent (USP) " Dualpolarized microstrip patch antenna array for PCS base stations ".It lies in the radiation conductor array that the dull and stereotyped copper component 3,5 of the orthogonal polarization of printed circuit board (PCB) 1 surface configuration forms, and through this, forms the array antenna structure of two groups of orthogonal polarization.
Yet this configuration mode is large by causing antenna size to be significantly increased to the several times of general array antenna volume, and two groups of antenna structures are not symmetrical mutually, cause radiation pattern difference very big, between antenna, easily produce and disturb mutually simultaneously, the design of feed-in transmission circuit network is very complicated in addition, the disappearance that easily causes signal attenuation and transmission line signal to interfere with each other.
[summary of the invention]
The present invention's object system provides a kind of array antenna, the junction angle number of degrees that the first transmission network and the second transmission network are connected in to each radiation conductor are controlled between 80 to 100 degree, make each radiation conductor all there is corresponding load point, through this, allow and between two corresponding radiation conductors, produce the phase difference of 180 degree, reduce the cross polarization amount of array antenna, and then improve antenna gain.
Another object of the present invention system provides a kind of array antenna, plural radiation conductor, the first transmission network and the second transmission network are all arranged on the same surface of substrate, reduce array antenna overall structure height, simplify production routine and manufacture difficulty, be easier to volume production simultaneously.
The present invention's another object is that a kind of array antenna is provided, the first transmission network and the second transmission network are disposed to zones of different, make the transmission path overlapping that can not intermesh, use the interference phenomenon between effectively isolated transmission network signal, transmission network size thickness is incomplete same simultaneously, the impedance matching of adjusting array antenna system through this, makes system have the operation frequency range that characteristic is more excellent.
For reaching above-mentioned purpose, the present invention's array antenna conductor arrangement, comprising: substrate, plural radiation conductor, the first transmission network, the second transmission network, support portion and ground plane, plural radiation conductor is disposed to substrate surface with symmetric arrays form, the first transmission network is connected to each radiation conductor, and there is a first common load point, the second transmission network is also connected to each radiation conductor, and there is a second common load point, plural radiation conductor wherein, the first transmission network and the second transmission network are all arranged on the same surface of substrate, and the junction angle number of degrees that the first transmission network and the second transmission network are connected in each radiation conductor are controlled between 80 to 100 degree, make each radiation conductor all there is corresponding load point, ground plane end face is stood in order to bearing substrate group in support portion.
The present invention mainly controls the two-way transmission network of plural radiation conductor and each radiation conductor junction angle number of degrees between 80 to 100 degree, with the first embodiment: the feed-in place angle number of degrees that the first transmission network and the second transmission network are connected in each radiation conductor are all set to 90 degree, therefore the first transmission network all forms corresponding load point in each radiation conductor place, and the second transmission network also forms corresponding load point in each radiation conductor place, make plural radiation conductor structure except exciting two groups of orthogonal array antenna signals, also can make to produce between two corresponding radiation conductors the phase difference of 180 degree simultaneously, so can reduce the cross polarization amount of array antenna generation, and then the gain that improves integrated antenna system.In addition plural radiation conductor, the first transmission network and the second transmission network are all arranged on the same surface of substrate, reduce array antenna overall structure height, simplify production routine and manufacture difficulty, be easier to manufacturer and produce in a large number.Simultaneously the first transmission network and the second transmission network configuring area overlapping that can not intermesh, therefore can effectively completely cut off the interference phenomenon between transmission network signal, transmission network size thickness is not identical simultaneously, adjust by this impedance matching of array antenna system, make system there is better operation frequency range.
For making your audit crew further understand the present invention's detailed content, hereby enumerate following preferred embodiment explanation as after.
[execution mode]
Referring to Fig. 2, is the top plan view of first embodiment of the invention.The structure of array antenna comprises: substrate 21, plural radiation conductor 22, the first transmission network 23, the second transmission network 24, support portion 25 (dotted line place) and ground plane 26; The first transmission network 23 has first common load point 231, the second transmission networks 24 and also has a second common load point 241.
Plural radiation conductor 22 is disposed to substrate 21 surfaces with symmetric arrays form, the first transmission network 23 is connected to each radiation conductor 22, the second transmission network 24 is also connected to each radiation conductor 22, the present embodiment is mainly by plural radiation conductor 22, the first transmission network 23 and the second transmission network 24 are all arranged on the same surface of substrate 21, and the first transmission network 23 and the second transmission network 24 configuring areas overlapping that do not intermesh, and control the junction angle number of degrees that the first transmission network 23 and the second transmission network 24 be connected in each radiation conductor 22 and be set to 90 degree, make the first transmission network 23 and the second transmission network 24 be connected in each radiation conductor 22 place and all form load point in correspondence with each other, through this, allow 22 of two corresponding radiation conductors produce the phase differences of 180 degree, the configuration sized thickness of the first transmission network 23 and the second transmission network 24 is all not identical simultaneously, use the impedance matching of adjusting array antenna system, non-metallic material is selected in support portion 25, and be carried on substrate 21 bottom surfaces and group is stood on ground plane 26 end faces, make to form gap between substrate 21 and ground plane 26, avoid contacting with each other and affect signal transmission efficiency.
Separately there is one first feed-in line 27, comprise: the first center conductor 271 (dotted line place) and the first outer layer conductor 272, the first center conductor 271 is connected in to the first load point 231, the first 272 of outer layer conductors are connected in ground plane 26, and the second feed-in line 28, comprise: the second center conductor 281 (dotted line place) and the second outer layer conductor 282, be connected in 282 of the outer layer conductors of the second load point 241, the second by the second center conductor 281 and be connected in ground plane 26.
The substrate 21 of the present embodiment is rectangle, and length is about 170mm, and width is about 140mm, plural number radiation conductor 22 is all square, and length is about 45mm, and the first transmission network 23 path total lengths are about 295mm, the second transmission network 24 path total lengths are about 550mm, non-metallic material is selected in support portion 25, is shaped as cylinder, and diameter is about 3mm, highly be about 6mm, ground plane 26 is rectangle, and length is about 180mm, and width is about 150mm.
Referring to Fig. 3, is the end view of first embodiment of the invention.The present invention is mainly directly arranged at plural radiation conductor 22, the first transmission network 23 and the second transmission network 24 on the same surface of substrate 21, then utilize support portion 25 to prop up behind substrate 21 bottom surfaces, group is stood on ground plane 26 top surfaces again, designs simplification and substrate 21 and ground plane 26 volumes all significantly reduce compared with conventional designs, are easier to a large amount of manufacturings.
Refer to Fig. 4, for the first transmission network of first embodiment of the invention returns to loss (Return loss) metric data schematic diagram.Wherein transverse axis represents frequency, the longitudinal axis represents dB value, the antenna system operation frequency range S1 that shows the first transmission network via graph curve is when being defined as Return loss and being greater than the situation of 10dB, operational frequency range is contained 2.5GHz to 2.75GHz, and this frequency band frequency range scope can contain Wimax system frequency range.
Refer to Fig. 5, for the second transmission network of first embodiment of the invention returns to loss (Return loss) metric data schematic diagram.Wherein transverse axis represents frequency, the longitudinal axis represents dB value, the antenna system operation frequency range S2 that shows the second transmission network via graph curve is when being defined as Return loss and being greater than the situation of 10dB, operational frequency range is contained 2.4GHz to 2.7GHz, this frequency band frequency range scope contains Wimax system frequency range equally, shows that the present invention's antenna system operation frequency range has all reached the operation frequency range communication standard of design.
Referring to Fig. 6, is the first transmission network radiation pattern metric data schematic diagram of first embodiment of the invention.It is defined as the radiation pattern figure that antenna system radiation pattern centre frequency is presented when 2500MHz to 2700MHz, via metric data, shows, more than average maxgain value (Peak Gain) is all crossed 12.01dBi.
Referring to Fig. 7, is the second transmission network radiation pattern metric data schematic diagram of first embodiment of the invention.It is defined as the radiation pattern figure that antenna system radiation pattern centre frequency is presented when 2500MHz to 2700MHz, via metric data, show, average maxgain value (Peak Gain) is all over more than reaching 12.35dBi, demonstration the present invention's configuration really can reduce aerial radiation field pattern and suffer interference phenomenon, and then reaches the object of high-gain.
Referring to Fig. 8, is the front plan view of second embodiment of the invention.The composition structure of the present embodiment and the first embodiment are identical, it is 80 degree that its difference is in that the junction angle number of degrees that are connected in each radiation conductor 22 in the first transmission network 23 and the second transmission network 24 all control, can make equally the first transmission network 23 and the second transmission network 24 be connected in each radiation conductor 22 place and all form load point in correspondence with each other, and allow 22 of two corresponding radiation conductors produce the phase differences of 180 degree, no matter show the present invention's design radiation conductor quantity number, the people who has the knack of this skill all can design corresponding load point easily according to same principle, except reducing the cross polarization amount of array antenna, take into account the high-gain requirement of antenna system simultaneously.
Refer to Fig. 9, for second embodiment of the invention is applied to the top plan view of radio transmitting device.The present invention's array antenna is placed in radio transmitting device 9 housings, utilize bearing part and the radio transmitting device 9 of ground plane 36 to combine closely, Signal connector 91 and the socket 92 of the 9 peripheral settings of recycling radio transmitting device are connected with external instrument, through this, carry out wireless signal transmitting-receiving and transmission.
The present invention has met patent requirement, the actual feature with novelty, progressive and industry using value, so embodiment is not in order to limit to the present invention's scope, various changes and retouching that any those who are familiar with this art did, do not departing under the present invention's spirit and definition, all in interest field of the present invention.
[brief description of drawingsfig]
Fig. 1 is the top perspective view of the dull and stereotyped array antenna of No. 5923296 dual-polarized, microstrip of United States Patent (USP).
Fig. 2 is the top plan view of first embodiment of the invention.
Fig. 3 is the end view of first embodiment of the invention.
Fig. 4 is that the first transmission network of first embodiment of the invention returns to loss (Return loss) metric data schematic diagram.
Fig. 5 is that the second transmission network of first embodiment of the invention returns to loss (Return loss) metric data schematic diagram.
Fig. 6 is the first transmission network radiation pattern metric data schematic diagram of first embodiment of the invention.
Fig. 7 is the second transmission network radiation pattern metric data schematic diagram of first embodiment of the invention.
Fig. 8 is the top plan view of second embodiment of the invention.
Fig. 9 is the top plan view that second embodiment of the invention is applied to radio transmitting device.
[primary clustering symbol description]
1-printed circuit board (PCB)
3,5-dull and stereotyped copper component polarizes
21-substrate
22-radiation conductor
23-the first transmission networks
231-the first load points
24-the second transmission networks
241-the second load points
25-support portion
26-ground plane
27-the first feed-in lines
271-the first center conductors
272-the first outer layer conductors
28-the second feed-in lines
281-the second center conductors
282-the second outer layer conductors
9-radio transmitting device
91-Signal connector
92-socket
Claims (1)
1. an array antenna, comprise substrate, plural radiation conductor, the first transmission network and the second transmission network, support portion, ground plane and the first feed-in line, and second feed-in line, it is characterized in that: described plural radiation conductor is disposed at this substrate with symmetric arrays form, described the first transmission network connects respectively this plural number radiation conductor, and has the first common load point, described the second transmission network is connected to this plural number radiation conductor, and there is the second common load point, wherein: this plural number radiation conductor, the first transmission network and the second transmission network are all arranged on the same surface of this substrate, and this first transmission network and the second transmission network configuring area are not overlapping, and control this first transmission network and this second transmission network and be connected in each radiation conductor junction angle number of degrees and be set to 90 degree, make the first transmission network and the second transmission network be connected in the load point that each radiation conductor place all forms mutual correspondence, through this, allow and between corresponding two radiation conductors, produce the phase difference of 180 degree, described support portion is non-metallic material, is carried on this substrate bottom surface, and group stands on ground plane top surface, makes to form gap between this substrate and this ground plane, described the first feed-in line comprises the first center conductor that is connected in described the first load point and the first outer layer conductor that is connected in described ground plane, and described the second feed-in line comprises the second center conductor that is connected in described the second load point and the second outer layer conductor that is connected in described ground plane.
2. array antenna as claimed in claim 1, is characterized in that: the size thickness of described the first transmission network and the second transmission network is not identical.
3. a radio transmitting device that is applicable to array antenna as claimed in claim 1, comprise housing, Signal connector and socket, it is characterized in that: this array antenna is placed in radio transmitting device housing, utilize the bearing part of this ground plane and this radio transmitting device to combine closely.
4. radio transmitting device as claimed in claim 3, is characterized in that: this Signal connector is arranged on the periphery of this radio transmitting device.
5. radio transmitting device as claimed in claim 3, is characterized in that: this socket is arranged on the periphery of this radio transmitting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910190448.3A CN101986464B (en) | 2009-09-17 | 2009-09-17 | Array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910190448.3A CN101986464B (en) | 2009-09-17 | 2009-09-17 | Array antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101986464A CN101986464A (en) | 2011-03-16 |
| CN101986464B true CN101986464B (en) | 2014-11-05 |
Family
ID=43710788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910190448.3A Expired - Fee Related CN101986464B (en) | 2009-09-17 | 2009-09-17 | Array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101986464B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4464663A (en) * | 1981-11-19 | 1984-08-07 | Ball Corporation | Dual polarized, high efficiency microstrip antenna |
| CN1391307A (en) * | 2001-12-06 | 2003-01-15 | 富士康(昆山)电脑接插件有限公司 | Technology for manufacturing antenna |
| CN1731626A (en) * | 2005-08-26 | 2006-02-08 | 宁焕生 | Broadband microstrip antenna and its feed matching device and method |
-
2009
- 2009-09-17 CN CN200910190448.3A patent/CN101986464B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4464663A (en) * | 1981-11-19 | 1984-08-07 | Ball Corporation | Dual polarized, high efficiency microstrip antenna |
| CN1391307A (en) * | 2001-12-06 | 2003-01-15 | 富士康(昆山)电脑接插件有限公司 | Technology for manufacturing antenna |
| CN1731626A (en) * | 2005-08-26 | 2006-02-08 | 宁焕生 | Broadband microstrip antenna and its feed matching device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101986464A (en) | 2011-03-16 |
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Granted publication date: 20141105 Termination date: 20150917 |
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