CN206774673U - A kind of fan-shaped beam micro-strip array antenna - Google Patents
A kind of fan-shaped beam micro-strip array antenna Download PDFInfo
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- CN206774673U CN206774673U CN201720587136.6U CN201720587136U CN206774673U CN 206774673 U CN206774673 U CN 206774673U CN 201720587136 U CN201720587136 U CN 201720587136U CN 206774673 U CN206774673 U CN 206774673U
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- 230000005855 radiation Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- 230000010363 phase shift Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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Abstract
The utility model discloses a kind of fan-shaped beam micro-strip array antenna, including radiating element, phase-shifting unit, medium and metal ground plate, the one side that is printed on medium of the radiating element into multiple lines and multiple rows, the metal ground plate is fitted in the another side of medium, radiating element is connected by connecting wire on per a line, and the midpoint of radiating element connecting wire sets feed connection point in every a line, feed connection point on radiating element of not going together is connected by feeding connecting line, is connected in the middle part of feed connecting line by feed line with circuit to be used；Radiating element is provided only with a phase-shifting unit for substituting radiating element position respectively with feed connection point to two edge directions on per a line, the phase-shifting unit is 180 degree phase-shifting unit, radiating element phase before phase-shifting unit is 0 degree, and the radiating element phase after phase-shifting unit is 180 degree.The antenna can obtain fan-shaped beam, and its cost is low, uniformity is good, stable performance, printed circuit board (PCB) can be used to process.
Description
Technical field
The utility model belongs to antenna technical field, is related to a kind of fan-beam antenna for radar and radio communication,
More particularly to a kind of fan-shaped beam micro-strip array antenna.
Background technology
With the development of Radar Technology and group-net communication technology, there are more demands to fan-beam antenna, for example hand over
Logical radar reduces to only cover the region of needs does not need the interference in region, it is necessary to fan-beam antenna, radio communication honeybee
Nest network is in order to reduce the interference between sector, it is also desirable to fan-beam antenna.Fig. 1 is fan-shaped beam and pair of circular beam
Than, it can be seen that fan-shaped beam has the characteristics of decaying quickly when deviateing main lobe, thus the interference that can effectively draw up.
Micro-strip paster antenna is a kind of suitable for microwave, the low cost antenna of millimeter wave, is obtained in microwave, millimeter wave field
It is widely applied, but micro-strip paster antenna has fixed directional diagram, in some occasions and does not apply to.Array antenna is a kind of
Improve the effective ways of aerial radiation wave beam, change the excitation amplitude of each antenna element and phase can be carried out antenna tax
Shape, form the wave beam of needs.By this method, to given antenna radiation pattern requirement, suitable array can be integrated out
Antenna.Traditional antenna array synthesis method has dongle husband-Chebyshev's synthesis, Taylor's synthesis, inverse Z-transform method, Wood
The methods of Ward-Lawson's sampling, the side such as adaptive algorithm, genetic algorithm, side lobe peak control algolithm was developed again later
Method.But the fan-beam antenna integrated out using the synthesis of routine is required for the feeding network and phase-shift network of complexity, this
Sample just brings difficulty to the realization of micro-strip array antenna.
Utility model content
The purpose of this utility model is to provide a kind of transmission distance antenna simple in construction, and the antenna uses microstrip array
Antenna, pass through the antenna radiation pattern for simply setting combination to be needed.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of fan-shaped beam micro-strip array antenna, it is characterised in that：Including radiating element, phase-shifting unit, medium and metal
Earth plate, for the radiating element into the one side for being printed on medium of multiple lines and multiple rows, the metal ground plate is fitted in the another of medium
Simultaneously, radiating element is connected by connecting wire in every a line, and the midpoint of radiating element connecting wire is set in every a line
Feed connection point is put, feed connection point is connected by feeding connecting line on radiating element of not going together, passes through in the middle part of feed connecting line
Feed line is connected with circuit to be used；Radiating element is provided only with one respectively with feed connection point to two edge directions on per a line
Substitute the phase-shifting unit of radiating element position, the phase-shifting unit is 180 degree phase-shifting unit, the radiating element before phase-shifting unit
Phase is 0 degree, and the radiating element phase after phase-shifting unit is 180 degree.
Further, impedance matching unit and power distributing unit are provided between the radiating element and connecting wire.
Further, radiating element and two phase-shifting units distributions are consistent in every a line, and with the connecting wire on the row
Feed connection point centered on it is symmetrical, it is symmetrical with antenna feeder per the feed connection point in a line.
Further, it is characterised in that：There is 4-20 radiating element in described every a line, form the fan-shaped beam microstrip array
The radiating element one of array antenna shares 1-20 rows.
Further, it is even number line when the line number of the radiating element is more than 1, radiating element has even number in every a line.
Further, the radiating element is that formula rectangular patch unit is presented on side.
The beneficial effects of the utility model are：
The horizontal beam width and vertical beam width of the antenna can as needed be integrated and come out, the secondary lobe electricity of antenna
Flat to be integrated as needed, the most importantly directional diagram of the antenna in one direction is fan-shaped beam.The day
Line easily can be processed using the technique of printed circuit board (PCB), and cost is low, uniformity is good, stable performance.
Brief description of the drawings
Fig. 1 fan-shaped beams directional diagram and circular beam directional diagram compare.
Wherein, Fig. 1 a are circular beam directional diagram, and Fig. 1 b are fan-shaped beam directional diagram.
Fig. 2 is that formula rectangular patch cell schematics are presented on side.
Wherein, Fig. 2 a are that formula rectangular patch unit front view is presented on side, and Fig. 2 b are that formula rectangular patch unit left side view is presented on side.
Fig. 3 is the single-row radiation unit of fan-shaped beam micro-strip array antenna.
Fig. 4 is the fan-shaped beam micro-strip array antenna schematic diagram of embodiment 1.
Wherein, Fig. 4 a are fan-shaped beam micro-strip array antenna front view, and Fig. 4 b are on the left of fan-shaped beam micro-strip array antenna
View.
Fig. 5 is the antenna pattern of embodiment 1.
Wherein, Fig. 5 a are horizontal radiation pattern in embodiment 1, and Fig. 5 b are vertical radiation pattern.
Fig. 6 is the fan-shaped beam micro-strip array antenna schematic diagram of embodiment 2.
Fig. 7 is the antenna pattern of embodiment 2.
Wherein, Fig. 7 a are horizontal radiation pattern in embodiment 2, and Fig. 7 b are vertical radiation pattern.
In figure, 101- radiating elements, 102- radiating element distributing points, 103- phase-shifting units, 104- power distributing units,
105- impedance matching units, 106- feed connecting lines, 107- fan-shaped beam micro-strip array antennas, 201- media, 301- metals connect
Floor, 401- feed lines.
Embodiment
The utility model is illustrated below in conjunction with the accompanying drawings
In order that micro-strip array antenna is realized easily, cost is reduced, the radiating element 101 that the utility model uses is presented for side
Formula rectangular patch unit, as shown in Figure 2.By radiating element 101, power distributing unit 104, impedance matching unit 105 and phase shift
Unit 103 is all put into approximately the same plane, and interacting between being allowed to can be ignored, in order to simplify design and system
Make, aerial array uses symmetrical structure.The integrated approach of antenna array is taken out using Woodward-Lawson (Woodword-Lawson)
Sample method, in order to obtain the array antenna that a horizontal direction is fan-shaped beam, to radiation during level of aggregation directional diagram
The amplitude and phase of unit 101 carry out following restriction：
1 each radiating element 101 is equally spaced；
The excitation phase of 2 each radiating elements 101 can only take 0 degree and 180 degree；
3 phasing back since feed connection point in distribution of lengths of the phase along radiating element 101 only once；
The excitation amplitude of the previous radiating element 101 of 4 phasing backs is 0；
Under this restriction, the antenna that synthesis goes out can both realize fan-shaped beam, again without the phase-shift network of complexity, and
Aerial array can be realized in a plane, consequently facilitating processing and manufacture.Fig. 3 is synthesis goes out under this restriction one
Linear Array with fan-shaped beam.Horizontal direction using this linear Array as antenna, then integrated in vertical direction,
It can be obtained by a planar antenna array with fan-shaped beam.
The linear array that the Pattern Synthesis of vertical direction is equally spaced by general is integrated (if desired, equally can be with
Fan-shaped beam is integrated out by the method for horizontal direction), then level side's line and vertical direction are combined, just completed whole
The synthesis of antenna, the antenna schematic diagram that synthesis goes out is as shown in Figure 4 and Figure 6.
The utility model is a planar array antenna, and its horizontal direction is fan-shaped beam, and vertical direction is circular beam.
For all circuits in addition to feed line 401 all in the one side of medium 201, the another side of medium 201 is whole metal ground plate
301, the feed line 401 of antenna is directly welded on circuit through metal ground plate 301 and medium 201.
A kind of fan-shaped beam micro-strip array antenna, including radiating element 101, phase-shifting unit 103, medium 201 and metal connect
Floor 301, into the one side for being printed on medium 201 of multiple lines and multiple rows, the metal ground plate 301 is bonded the radiating element 101
Radiating element 101 is connected by connecting wire on the another side of medium 201, every a line, and the radiating element 101 in every a line
The midpoint of connecting wire sets feed connection point, and feed connection point is by feeding connecting line 106 on radiating element 101 of not going together
It is connected, the middle part of feed connecting line 106 is weldingly connected by feed line 401 and circuit to be used；Radiating element 101 on per a line
One phase-shifting unit 103 for substituting the position of radiating element 101, the phase shift are provided only with feed connection point respectively to two edge directions
Unit 103 is 180 degree phase-shifting unit, and the phase of radiating element 101 before phase-shifting unit 103 is 0 degree, phase-shifting unit 103 it
The phase of radiating element 101 afterwards is 180 degree.
Impedance matching unit 105 and power distributing unit 104 are provided between the radiating element 101 and connecting wire.
Radiating element 101 is distributed consistent with two phase-shifting units 103 on per a line, and with connecting wire on corresponding line
It is symmetrical centered on feed connection point, do not go together on feed connection point it is symmetrical with feed line 401.
The quantity of radiating element 101 is at least 4 in described every a line, and particular number needs to adjust according to actual waveform, examines
Consider complexity problem, typically most preferably have 4-20 radiating element 101, form the spoke of the fan-shaped beam micro-strip array antenna 107
The line number for penetrating unit 101 is at least 1 row, and particular number needs to adjust according to actual waveform, considers complexity problem, typically there is 1-
20 rows.
Optimal, it is even number line when the line number of the radiating element 101 is more than 1, radiating element 101 has even number in every a line
It is individual.
It is two specific embodiments below：
Embodiment 1
Using structure of the present utility model and integrated approach, a fan-shaped beam micro-strip array antenna 107 is designed, is worked in
24.15GHz, the material selection RO4350B of medium 201, the thickness 0.5mm of medium 201.Horizontal direction is made up of 10 radiating elements
(Net long wave radiation unit 101 is 8), horizontal radiation pattern are fan-shaped beam, and 3dB lobe widths are 32 degree.Vertical direction is adopted
With 6 radiating elements, vertical radiation pattern is circular beam, and 3dB lobe widths are 16 degree.Global radiation unit, which is 60, (to be had
It is 48 to imitate radiating element 101).Maximum secondary lobe is less than -20dB, and return loss is less than -17dB.Its planar structure as shown in figure 4,
Its radiation diagram both horizontally and vertically is as shown in Figure 5.
Embodiment 2
Using structure of the present utility model and integrated approach, another fan-shaped beam micro-strip array antenna 107 is designed, is worked
In 24.15GHz, the material selection RO4350B of medium 201, the thickness 0.5mm of medium 201.Horizontal direction is made up of 18 radiating elements
(Net long wave radiation unit 101 is 16), horizontal radiation pattern are fan-shaped beam, and 3dB lobe widths are 14 degree.Vertical direction is adopted
With 4 radiating elements 101, vertical radiation pattern is circular beam, and 3dB lobe widths are 24 degree.Global radiation unit is 72
(Net long wave radiation unit 101 is 64).Maximum secondary lobe is less than -20dB, and return loss is less than -17dB.Its planar structure such as Fig. 6 institutes
Show, its radiation diagram both horizontally and vertically is as shown in Figure 7.
Claims (6)
- A kind of 1. fan-shaped beam micro-strip array antenna, it is characterised in that：Connect including radiating element, phase-shifting unit, medium and metal Floor, for the radiating element into the one side for being printed on medium of multiple lines and multiple rows, the metal ground plate is fitted in the another of medium Face, often radiating element is connected by connecting wire in a line, and the midpoint of radiating element connecting wire is set in every a line Feed connection point, feed connection point is connected by feeding connecting line on radiating element of not going together, passes through feedback in the middle part of feed connecting line Electric wire is connected with circuit to be used；Radiating element is provided only with one to two edge directions with feed connection point and replaced respectively on per a line For the phase-shifting unit of radiating element position, the phase-shifting unit is 180 degree phase-shifting unit, the radiating element phase before phase-shifting unit Position is 0 degree, and the radiating element phase after phase-shifting unit is 180 degree.
- A kind of 2. fan-shaped beam micro-strip array antenna according to claim 1, it is characterised in that：The radiating element is with being connected Impedance matching unit and power distributing unit are provided between wire.
- A kind of 3. fan-shaped beam micro-strip array antenna according to claim 2, it is characterised in that：Per radiating element in a line and Two phase-shifting unit distributions are consistent and symmetrical centered on the feed connection point of the connecting wire on the row, in every a line Feed connection point it is symmetrical with antenna feeder.
- A kind of 4. fan-shaped beam micro-strip array antenna according to Claims 2 or 3, it is characterised in that：Have in described every a line 4-20 radiating element, the radiating element one for forming the fan-shaped beam micro-strip array antenna share 1-20 rows.
- A kind of 5. fan-shaped beam micro-strip array antenna according to claim 4, it is characterised in that：The line number of the radiating element It is even number line during more than 1, radiating element has even number in every a line.
- A kind of 6. fan-shaped beam micro-strip array antenna according to claim 1, it is characterised in that：The radiating element is presented for side Formula rectangular patch unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587136.6U CN206774673U (en) | 2017-05-24 | 2017-05-24 | A kind of fan-shaped beam micro-strip array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587136.6U CN206774673U (en) | 2017-05-24 | 2017-05-24 | A kind of fan-shaped beam micro-strip array antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069206A (en) * | 2017-05-24 | 2017-08-18 | 武汉拓宝科技股份有限公司 | A kind of fan-shaped beam micro-strip array antenna |
| CN114006162A (en) * | 2021-11-09 | 2022-02-01 | 中汽创智科技有限公司 | Vehicle-mounted radar antenna and vehicle |
-
2017
- 2017-05-24 CN CN201720587136.6U patent/CN206774673U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069206A (en) * | 2017-05-24 | 2017-08-18 | 武汉拓宝科技股份有限公司 | A kind of fan-shaped beam micro-strip array antenna |
| CN114006162A (en) * | 2021-11-09 | 2022-02-01 | 中汽创智科技有限公司 | Vehicle-mounted radar antenna and vehicle |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210413 Address after: Room 1005, building F1, phase I, Longshan Innovation Park, future city, No. 999, Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430075 Patentee after: Weitai Technology (Wuhan) Co.,Ltd. Address before: 430075 room 701, C2 building, future science and Technology City, 999 Gaoxin Avenue, Donghu high tech Zone, Wuhan City, Hubei Province Patentee before: WUHAN TURBO TECHNOLOGIES Corp. |
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| TR01 | Transfer of patent right |