CN207994072U - A kind of microwave feed network circuit and microwave circuit boards for realizing that aerial array is shared - Google Patents
A kind of microwave feed network circuit and microwave circuit boards for realizing that aerial array is shared Download PDFInfo
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- CN207994072U CN207994072U CN201820319381.3U CN201820319381U CN207994072U CN 207994072 U CN207994072 U CN 207994072U CN 201820319381 U CN201820319381 U CN 201820319381U CN 207994072 U CN207994072 U CN 207994072U
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Abstract
The utility model is related to microwave circuit fields, disclose a kind of microwave feed network circuit and microwave circuit boards for realizing that aerial array is shared.The utility model, which is created, provides a kind of microwave circuit and microwave circuit boards for realizing that aerial array is shared by power combing/distribution Network Topology Design, it can be according to the length parameter designing of the power of power combing/distributor when microstrip line, to the receiving antenna array of 5 × n into line amplitude and phase weighting, to which synthesis obtains two reception excipient wave beams symmetrical and for 4 × n, since two reception excipient wave beams both have wide angle measurement range, there is high antenna gain and low sidelobe again, it is applied to anticollision before can solving and contradictory problems occurs in antenna gain and angle measurement range, meet microwave car radar for before applied to anticollision when range measurement requirement and angle measurement area requirement.
Description
Technical field
The utility model belongs to microwave circuit field, and in particular to a kind of microwave feed network for realizing that aerial array is shared
Circuit and microwave circuit boards.
Background technology
24GHz microwave radars are used to need the relative distance and phase of detection and objects ahead to anticollision application before automobile
To angle.Currently, measurement angle generally uses more reception antenna phase methods, antenna to use micro-strip array antenna so that angle is surveyed
It is related with aerial array spacing to measure range；And measurement distance is related with aerial array size, array is bigger, and antenna gain is higher.
It is more than that 100m needs high antenna gain to ensure the distance that forward direction anticollision application, which needs measurement distance, so that micro-strip day
Linear array size needs to increase, and the battle array spacing that two width receive array antenna is caused to become larger, and 2 π of generation are fuzzy will to influence angle survey
Range is measured, to contradictory problems occur in antenna gain and angle measurement range.It is therefore desirable to design one kind to realize day
The shared novel microwave feeding-network circuits of linear array, are convenient for reasonable distribution amplitude-phase, realize that antenna gain is high and angle is surveyed
Measure the wide purpose of range.
Utility model content
In order to solve the above problem of the existing technology, the utility model aim is to provide a kind of realization aerial array
Shared microwave feed network circuit and microwave circuit boards.
Used by the utility model technical solution on the one hand be：
A kind of microwave feed network circuit for realizing that aerial array is shared, including first antenna array feed point, the second antenna
Array feed point, third antenna array feed point, the 4th aerial array feed point, the 5th aerial array feed point, the first power combiner,
Two power combiners, third power combiner, the 4th power combiner, the 5th power combiner, the 6th power combiner, first
Power divider, the second power divider and third power divider, wherein the first antenna array feed point, described second
Aerial array feed point, the third antenna array feed point, the 4th aerial array feed point and the 5th aerial array feed point
It is equally spaced successively using half wavelength as interval on straight line；
The first antenna array feed point connects the first input end of first power combiner by microstrip line, described
Second aerial array feed point connects the input terminal of first power divider by microstrip line, first power divider
First output end connects the second input terminal of first power combiner by microstrip line, and the of first power divider
Two output ends connect the second input terminal of the 4th power combiner by microstrip line, and the third antenna array feed point passes through
Microstrip line connects the input terminal of second power divider, and the first output end of second power divider passes through microstrip line
The first input end of the 4th power combiner is connected, the second output terminal of second power divider is connected by microstrip line
The first input end of the third power combiner is connect, the 4th aerial array feed point connects third power point by microstrip line
First output end of the input terminal of orchestration, the third power divider connects the 6th power combiner by microstrip line
Second input terminal, the second output terminal of the third power divider connect the of the third power combiner by microstrip line
Two input terminals, the 5th aerial array feed point connect the first input end of the 6th power combiner by microstrip line；
The output end of first power combiner connects the first input of second power combiner by microstrip line
End, the output end of the third power combiner connect the second input terminal of second power combiner by microstrip line, will
The output end of second power combiner is as the first wave beam output end；
The output end of 6th power combiner connects the first input of the 5th power combiner by microstrip line
End, the output end of the 4th power combiner connect the second input terminal of the 5th power combiner by microstrip line, will
The output end of 5th power combiner is as the second wave beam output end.
Specifically, first power combiner, second power combiner, the third power combiner, described
4th power combiner, the 5th power combiner or the 6th power combiner are Wilkinson power synthesizer.
Specifically, first power divider, second power divider or the third power divider are prestige
Er Jinsen power dividers.
Used by the utility model technical solution on the other hand be：
A kind of microwave circuit boards, including be sequentially overlapped from bottom to up microwave fed topologies layer, first medium base, first
Stratum, second medium base, the second stratum, third medium base and aerial array topological layer；
The shared microwave feed network circuit of realization aerial array above-mentioned is disposed in the microwave fed topologies layer；
It is disposed in the aerial array topological layer and first antenna array feed point, the second antenna is connected by via respectively
The antenna of array feed point, third antenna array feed point, the 4th aerial array feed point and the 5th aerial array feed point.
Specifically, the microwave fed topologies layer, first stratum, second stratum and aerial array topology
Layer is respectively copper foil layer, and the thickness of the copper foil layer is 17um.
Specifically, the first medium base and third medium base are respectively RO4350B material layers, it is described
The thickness of RO4350B material layers is 0.25mm.
Specifically, the second medium base is RO4450F material layers, the thickness of the RO4450F material layers is
0.2mm。
The beneficial effects of the utility model are：
(1) the invention provides a kind of shared by power combing/distribution Network Topology Design realization aerial array
Microwave circuit and microwave circuit boards, can be right according to the length parameter designing of the power of power combing/distributor when microstrip line
The receiving antenna array of 5 × n is into line amplitude and phase weighting, to which synthesis obtains two reception excipients symmetrical and for 4 × n
Wave beam since two reception excipient wave beams not only have wide angle measurement range, but also has high antenna gain and low sidelobe, can
It is applied to anticollision before solving and contradictory problems occurs in antenna gain and angle measurement range, met before microwave car radar is used for
Range measurement requirement when being applied to anticollision and angle measurement area requirement；
(2) printing area of microwave circuit can be reduced, the Miniaturization Design of microwave circuit boards is conducive to；
It (3) can be by multilayer plate technique processing and fabricating microwave circuit boards, while by antenna, microwave feed network circuit
It is done on the different layers with other active circuits, the microwave circuit boards can be made to have at low cost, reliability high and conformity of production
The features such as good, is convenient for practical promotion and application.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the design diagram of microwave feed network circuit provided by the utility model.
Fig. 2 is the printing schematic diagram of microwave feed network circuit provided by the utility model.
Fig. 3 is the schematic diagram of a layer structure of microwave circuit boards provided by the utility model.
In figure：101- first antenna array feed points；102- the second aerial array feed points；103- third antenna array feed points；
The 4th aerial array feed points of 104-；The 5th aerial array feed points of 105-；The first power combiners of 201-；The second power combings of 202-
Device；203- third power combiners；The 4th power combiners of 204-；The 5th power combiners of 205-；The 6th power combings of 206-
Device；The first power dividers of 301-；The second power dividers of 302-；303- third power dividers；11- microwave fed topologies
Layer；12- first mediums base；The first stratum 13-；14- second mediums base；The second stratum 15-；16- third media base；
17- aerial array topological layers.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment is further elaborated the utility model.It should be noted that right
It is used to help understand the utility model in the explanation of these way of example, but does not constitute the restriction to the utility model.
The terms "and/or", only a kind of incidence relation of description affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate：Individualism A, individualism B exist simultaneously tri- kinds of situations of A and B, the terms
"/and " it is another affiliated partner relationship of description, indicate may exist two kinds of relationships, for example, A/ and B, can indicate：Individually deposit
In A, two kinds of situations of individualism A and B, in addition, character "/" herein, it is a kind of "or" pass to typically represent forward-backward correlation object
System.
Embodiment one
As shown in Fig. 1~2, the microwave feed network circuit provided in this embodiment for realizing that aerial array is shared, including the
One aerial array feed point 101, the second aerial array feed point 102, third antenna array feed point 103, the 4th aerial array feed point
104, the 5th aerial array feed point 105, the first power combiner 201, the second power combiner 202, third power combiner
203, the 4th power combiner 204, the 5th power combiner 205, the 6th power combiner 206, the first power divider 301,
Second power divider 302 and third power divider 303, wherein the first antenna array feed point 101, second day described
Linear array feed point 102, the third antenna array feed point 103, the 4th aerial array feed point 104 and the 5th antenna array
Row feed point 105 is equally spaced using half wavelength as interval successively on straight line.
The first antenna array feed point 101 connects the first input of first power combiner 201 by microstrip line 4
End, the second aerial array feed point 102 connect the input terminal of first power divider 301 by microstrip line 4, and described the
First output end of one power divider 301 connects the second input terminal of first power combiner 201 by microstrip line 4,
The second output terminal of first power divider 301 by microstrip line 4 connect the 4th power combiner 204 it is second defeated
Enter end, the third antenna array feed point 103 connects the input terminal of second power divider 302 by microstrip line 4, described
First output end of the second power divider 302 connects the first input of the 4th power combiner 204 by microstrip line 4
End, the second output terminal of second power divider 302 connect the of the third power combiner 203 by microstrip line 4
One input terminal, the 4th aerial array feed point 104 connects the input terminal of third power divider 303 by microstrip line 4, described
First output end of third power divider 303 connects the second input of the 6th power combiner 206 by microstrip line 4
End, the second output terminal of the third power divider 303 connect the of the third power combiner 203 by microstrip line 4
Two input terminals, the 5th aerial array feed point 105 by microstrip line 4 connect the 6th power combiner 206 it is first defeated
Enter end.
The output end of first power combiner 201 connects the of second power combiner 202 by microstrip line 4
The output end of one input terminal, the third power combiner 203 connects second power combiner 202 by microstrip line 4
Second input terminal, using the output end of second power combiner 202 as the first wave beam output end Pout1.
The output end of 6th power combiner 206 connects the of the 5th power combiner 205 by microstrip line 4
The output end of one input terminal, the 4th power combiner 204 connects the 5th power combiner 205 by microstrip line 4
Second input terminal, using the output end of the 5th power combiner 205 as the second wave beam output end Pout2.
In the structure of the microwave feed network circuit, since the spacing of arbitrary two aerial arrays feed point is half of wave
It is long, it can be ensured that angle measurement range covers ± 90 °.By the first antenna array feed point 101, the second aerial array feed point
102, the third antenna array feed point 103, first power combiner 201, second power combiner 202, described
Third power combiner 203, first power divider 301, second power divider 302 and more 4 structures of microstrip line
At microwave feed network circuit be the feed leg for forming the first wave beam (i.e. the ends Pout1 export).By the 5th antenna
Array feed point 105, the 4th aerial array feed point 104, the third antenna array feed point 103, the 6th power combing
It is device 206, the 5th power combiner 205, the 4th power combiner 204, the third power divider 303, described
The microwave feed network circuit that second power divider 302 and more microstrip lines 4 are constituted is to form the second wave beam (i.e. in Pout2
End output) feed leg.
Design parameter design is carried out by the power ratio to each power combing/distributor, it can be under antenna array receiver
The signal come carries out amplitude weighting, while specifically being designed by the length to microstrip line 4 everywhere, can be to the letter that receives
Number carry out phase weighting, so as to obtain symmetrical excipient wave beam in two wave beam output ends.Both due to two reception excipient wave beams
With wide angle measurement range, and there is high antenna gain and low sidelobe, applies to anticollision before can solving and increase in antenna
Benefit and angle measurement range there are contradictory problems, meet microwave car radar for before applied to anticollision when range measurement want
Summation angle measurement area requirement.
Specifically, first power combiner 201, second power combiner 202, the third power combiner
203, the 4th power combiner 204, the 5th power combiner 205 or the 6th power combiner 206 can with but
It is not limited to Wilkinson power synthesizer.
Specifically, first power divider 301, second power divider 302 or the third power distribution
Device 303 can be, but not limited to as Wilkinson power divider.
To sum up, the microwave feed network circuit for realizing that aerial array is shared provided using the present embodiment, is had as follows
Technique effect：
(1) it present embodiments provides and a kind of realizing what aerial array shared by power combing/distribution Network Topology Design
Microwave circuit, can be according to the length parameter designing of the power of power combing/distributor when microstrip line, to the reception antenna of 5 × n
Array is into line amplitude and phase weighting, to which synthesis obtains two reception excipient wave beams symmetrical and for 4 × n, due to two
Receiving excipient wave beam not only has wide angle measurement range, but also has high antenna gain and low sidelobe, to anti-collision before can solving
Hit to apply and contradictory problems occur in antenna gain and angle measurement range, meet microwave car radar for before to anticollision application
When range measurement requirement and angle measurement area requirement；
(2) printing area of microwave circuit can be reduced, the Miniaturization Design of microwave circuit boards is conducive to.
Embodiment two
As shown in figure 3, the present embodiment is as a kind of microwave circuit using microwave feed network circuit described in embodiment one
Plate, including the microwave fed topologies layer 11, first medium base 12, the first stratum 13, the second medium that are sequentially overlapped from bottom to up
Base 14, the second stratum 15, third medium base 16 and aerial array topological layer 17；The cloth in the microwave fed topologies layer 11
It is equipped with the microwave feed network circuit for realizing that aerial array is shared as described in embodiment one；In the aerial array topological layer 17
In be disposed with first antenna array feed point 101, the second aerial array feed point 102, third antenna array connected by via respectively
The antenna of feed point 103, the 4th aerial array feed point 104 and the 5th aerial array feed point 105.Thus can be added by multilayer plate technique
Work makes microwave circuit boards, while by the way that antenna, microwave feed network circuit and other active circuits are done on the different layers, can
So that the microwave circuit boards is had the characteristics that at low cost, reliability is high and conformity of production is good, is convenient for practical promotion and application.
Specifically, the microwave fed topologies layer 11, first stratum 13, second stratum 15 and the antenna array
Row topological layer 17 is respectively copper foil layer, and the thickness of the copper foil layer is 17um.
Specifically, the first medium base 12 and third medium base 16 are respectively RO4350B material layers, it is described
The thickness of RO4350B material layers is 0.25mm.
Specifically, the second medium base 14 is RO4450F material layers, the thickness of the RO4450F material layers is
0.2mm。
To sum up, the microwave circuit boards provided using the present embodiment also have following technology on the basis of embodiment one
Effect：
It (1) can be by multilayer plate technique processing and fabricating microwave circuit boards, while by antenna, microwave feed network circuit
It is done on the different layers with other active circuits, the microwave circuit boards can be made to have at low cost, reliability high and conformity of production
The features such as good, is convenient for practical promotion and application.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, every the utility model right that falls into is wanted
The technical solution in confining spectrum is sought, is all fallen within the scope of protection of the utility model.
Claims (7)
1. a kind of microwave feed network circuit for realizing that aerial array is shared, it is characterised in that：Including first antenna array feed point
(101), the second aerial array feed point (102), third antenna array feed point (103), the 4th aerial array feed point (104), the 5th
Aerial array feed point (105), the first power combiner (201), the second power combiner (202), third power combiner
(203), the 4th power combiner (204), the 5th power combiner (205), the 6th power combiner (206), the first power point
Orchestration (301), the second power divider (302) and third power divider (303), wherein the first antenna array feed point
(101), the second aerial array feed point (102), the third antenna array feed point (103), the 4th aerial array feedback
Point (104) and the 5th aerial array feed point (105) are equally spaced using half wavelength as interval successively on straight line；
The first antenna array feed point (101) by microstrip line (4) connect first power combiner (201) it is first defeated
Enter end, the second aerial array feed point (102) connects the input of first power divider (301) by microstrip line (4)
First output end at end, first power divider (301) connects first power combiner by microstrip line (4)
(201) the second input terminal, the second output terminal of first power divider (301) connect described the by microstrip line (4)
Second input terminal of four power combiners (204), the third antenna array feed point (103) pass through described in microstrip line (4) connection
First output end of the input terminal of the second power divider (302), second power divider (302) passes through microstrip line (4)
The first input end of the 4th power combiner (204) is connected, the second output terminal of second power divider (302) is logical
Cross the first input end that microstrip line (4) connects the third power combiner (203), the 4th aerial array feed point (104)
The input terminal of third power divider (303) is connected by microstrip line (4), the first of the third power divider (303) is defeated
Outlet connects the second input terminal of the 6th power combiner (206), the third power divider by microstrip line (4)
(303) second output terminal connects the second input terminal of the third power combiner (203) by microstrip line (4), and described the
Five aerial array feed points (105) connect the first input end of the 6th power combiner (206) by microstrip line (4)；
The output end of first power combiner (201) connects second power combiner (202) by microstrip line (4)
The output end of first input end, the third power combiner (203) connects second power combiner by microstrip line (4)
(202) the second input terminal, using the output end of second power combiner (202) as the first wave beam output end (Pout1)；
The output end of 6th power combiner (206) connects the 5th power combiner (205) by microstrip line (4)
The output end of first input end, the 4th power combiner (204) connects the 5th power combiner by microstrip line (4)
(205) the second input terminal, using the output end of the 5th power combiner (205) as the second wave beam output end (Pout2).
2. a kind of microwave feed network circuit for realizing that aerial array is shared as described in claim 1, it is characterised in that：It is described
First power combiner (201), second power combiner (202), the third power combiner (203), the described 4th
Power combiner (204), the 5th power combiner (205) or the 6th power combiner (206) are Wilkinson work(
Rate synthesizer.
3. a kind of microwave feed network circuit for realizing that aerial array is shared as described in claim 1, it is characterised in that：It is described
First power divider (301), second power divider (302) or the third power divider (303) are Weir gold
Gloomy power divider.
4. a kind of microwave circuit boards, it is characterised in that：Including be sequentially overlapped from bottom to up microwave fed topologies layer (11), first
Medium base (12), the first stratum (13), second medium base (14), the second stratum (15), third medium base (16) and day
Linear array topological layer (17)；
Arrangement is just like the realization aerial array described in claims 1 to 3 any one in the microwave fed topologies layer (11)
Shared microwave feed network circuit；
It is disposed in the aerial array topological layer (17) and first antenna array feed point (101), the is connected by via respectively
Two aerial array feed points (102), third antenna array feed point (103), the 4th aerial array feed point (104) and the 5th aerial array
The antenna of feed point (105).
5. a kind of microwave circuit boards as claimed in claim 4, it is characterised in that：It is the microwave fed topologies layer (11), described
First stratum (13), second stratum (15) and the aerial array topological layer (17) are respectively copper foil layer, the copper foil layer
Thickness be 17um.
6. a kind of microwave circuit boards as claimed in claim 4, it is characterised in that：The first medium base (12) and described
Three medium bases (16) are respectively RO4350B material layers, and the thickness of the RO4350B material layers is 0.25mm.
7. a kind of microwave circuit boards as claimed in claim 4, it is characterised in that：The second medium base (14) is
The thickness of RO4450F material layers, the RO4450F material layers is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820319381.3U CN207994072U (en) | 2018-03-08 | 2018-03-08 | A kind of microwave feed network circuit and microwave circuit boards for realizing that aerial array is shared |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820319381.3U CN207994072U (en) | 2018-03-08 | 2018-03-08 | A kind of microwave feed network circuit and microwave circuit boards for realizing that aerial array is shared |
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| Publication Number | Publication Date |
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| CN207994072U true CN207994072U (en) | 2018-10-19 |
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ID=63826588
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462042A (en) * | 2018-11-14 | 2019-03-12 | 广州合智瑞达科技有限公司 | A kind of vehicle anticollision radar array antenna and the circuit board equipped with the array antenna |
-
2018
- 2018-03-08 CN CN201820319381.3U patent/CN207994072U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462042A (en) * | 2018-11-14 | 2019-03-12 | 广州合智瑞达科技有限公司 | A kind of vehicle anticollision radar array antenna and the circuit board equipped with the array antenna |
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