CN209357924U - A kind of 2 × 4 Butler matrix networks - Google Patents
A kind of 2 × 4 Butler matrix networks Download PDFInfo
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- CN209357924U CN209357924U CN201822246522.6U CN201822246522U CN209357924U CN 209357924 U CN209357924 U CN 209357924U CN 201822246522 U CN201822246522 U CN 201822246522U CN 209357924 U CN209357924 U CN 209357924U
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Abstract
The utility model discloses a kind of 2 × 4 Butler matrix networks, including the first directional coupler, the second directional coupler, third directional coupler, the first Ohmic resistance and the second Ohmic resistance；Wherein, there are two input terminal and two output ends, respectively first input end, the second input terminal, the first output end and second output terminal for each directional coupler tool；2 × 4 butler matrix has 2 signal input ports, respectively first input port and the second input port, there is 4 output ports, respectively the first output port, second output terminal mouth, third output port and the 4th output port.It is few that the utility model constitutes component, structure is simple, when the second output terminal mouth out2 of the network, third output port out3, the first output port out1 and the 4th output port out4 are connect with equidistant 4 cell array respectively, the antenna pattern of two different beams direction can produce.
Description
Technical field
The utility model relates to fields of communication technology, and in particular to a kind of 2 × 4 Butler matrix networks.
Background technique
With the rapid development of mobile communication technology and sharply increasing for service of mobile communication, it is faced with communication cell
Between signal interference is strong, spectrum capabilities are insufficient and signal covering it is narrow the problems such as.Multibeam antenna can generate multiple wave beams simultaneously
Pattern characteristics can increase network capacity；In addition, multibeam antenna easily realizes narrow beam and high-gain, signal can be reduced
Interference and increase coverage distance.Therefore, multibeam antenna is with a wide range of applications and is worth.
Wherein, Butler (Butler) matrix is the important component of multibeam antenna, is to generate multi-beam characteristic
Critical component.However, structure is complicated for Butler (Butler) matrix in the prior art, and consume with higher, need
In further perfect.
Utility model content
In view of this, the utility model proposes a kind of 2 × 4 Butler squares in order to solve the above problem in the prior art
Battle array network.
The utility model is solved the above problems by following technological means:
A kind of 2 × 4 Butler matrix networks, including the first directional coupler, the second directional coupler, third directional couple
Device, the first Ohmic resistance and the second Ohmic resistance；Wherein, input terminal and two output ends there are two each directional coupler tools,
Respectively first input end, the second input terminal, the first output end and second output terminal；2 × 4 butler matrix has 2 letters
Number input port, respectively first input port and the second input port, there is 4 output ports, respectively the first output port,
Second output terminal mouth, third output port and the 4th output port；
The first input end of first directional coupler is connected to first input port, and the second of the first directional coupler
Input terminal is connected to the second input port；First input of the first output end and third directional coupler of the first directional coupler
End connection, the second input terminal of third directional coupler are connect with the first Ohmic resistance, the other end ground connection of the first Ohmic resistance,
First output end of third directional coupler is connect with the first output port, the second output terminal of third directional coupler and second
Output port connection；The second output terminal of first directional coupler is connect with the first input end of the second directional coupler, and second
Second input terminal of directional coupler is connect with the second Ohmic resistance, the other end ground connection of the second Ohmic resistance, the second orientation coupling
First output end of clutch is connect with third output port, and the second output terminal of the second directional coupler and the 4th output port connect
It connects.
Further, first directional coupler has 90 degree of phase-shift characterisitcs.
Further, second and third described directional coupler has 180 degree phase-shift characterisitc.
Further, the first directional coupler is that the constant power with 90 degree of Phase-Shifting Characteristics distributes directional coupler.
Further, the second directional coupler is that the unequal power with 180 degree Phase-Shifting Characteristics distributes directional coupler.
Further, third directional coupler is that the unequal power with 180 degree Phase-Shifting Characteristics distributes directional coupler.
Compared with prior art, the beneficial effects of the utility model include at least:
A kind of composition component of 2 × 4 Butler matrix network provided by the utility model is few, and structure is simple, when the network
Second output terminal mouth out2, third output port out3, the first output port out1 and the 4th output port out4 respectively with
Equidistant 4 cell array connection, can produce the antenna pattern of two different beams direction.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is 2 × 4 Butler matrix network top level structure schematic diagram of the utility model.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with attached drawing and
The technical solution of the utility model is described in detail in specific embodiment.It should be pointed out that described embodiment is only
It is only the utility model a part of the embodiment, instead of all the embodiments, based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to the utility model
The range of protection.
Please refer to Fig. 1, a kind of the first directional coupler of 2 × 4 Butler matrix network 1, second provided by the utility model
Directional coupler 2, third directional coupler 3, the first Ohmic resistance 4 and the second Ohmic resistance 5 composition；Wherein, each orientation coupling
For clutch tool there are two input terminal and two output ends, respectively first input end, the second input terminal, the first output end and second is defeated
Outlet；2 × 4 butler matrix has 2 signal input ports, respectively first input port in1 and the second input port
In2, there is 4 output ports, respectively the first output port out1, second output terminal mouth out2, third output port out3 and
4th output port out4.
In the utility model each component connection relationship as shown in Figure 1, first directional coupler 1 first input end
1a is connected to first input port in1, and the second input terminal 1b of the first directional coupler 1 is connected to the second input port in2；The
First output end 1c of one directional coupler 1 is connect with the first input end 3a of third directional coupler 3, third directional coupler
3 the second input terminal 3b is connect with the first Ohmic resistance 4, the other end ground connection of the first Ohmic resistance 4, third directional coupler 3
The first output end 3c connect with the first output port out1, the second output terminal 3d of third directional coupler 3 and second output
Port out2 connection；The first input end 2a of the second output terminal 1d of first directional coupler 1 and the second directional coupler 2 connects
It connects, the second input terminal 2b of the second directional coupler 2 is connect with the second Ohmic resistance 5, another termination of the second Ohmic resistance 5
The first output end 2c on ground, the second directional coupler 2 is connect with third output port out3, and the second of the second directional coupler 2
Output end 2d is connect with the 4th output port out4.
In the present invention, first directional coupler 1 has 90 degree of phase-shift characterisitcs, i.e., when from the first directional couple
When any one input terminal feed of device 1, the transmission phase delay 90 of the transmission phase of heteropleural output end than ipsilateral output end
Degree；Second and third described directional coupler has a 180 degree phase-shift characterisitc, i.e., when from second and third directional coupler any one is defeated
When entering end feed, the transmission phase delay 180 degree of the transmission phase of heteropleural output end than ipsilateral output end.
Specifically, the first directional coupler 1 is that the constant power with 90 degree of Phase-Shifting Characteristics distributes directional coupler.Work as signal
When being fed from the first input end 1a of the first directional coupler 1, the distribution power phase of the first output end 1c and second output terminal 1d
Deng for the half of input signal power, phase delay 90 of the output phase of second output terminal 1d relative to the first output end 1c
Degree.Similarly, when signal is fed from the second input terminal 1b of the first directional coupler 1, the output of the first output end 1c and second
It holds the distribution power of 1d equal, is the half of input signal power, the output phase of the first output end 1c is relative to the second output
The output phase of 1d is held to postpone 90 degree.
Second directional coupler 2 is that the unequal power with 180 degree Phase-Shifting Characteristics distributes directional coupler.When signal is from
When the first input end 2a feed of two directional couplers 2, the distribution power of the first output end 2c is the distribution of second output terminal 2d
N times of power, N > 1, phase delay 180 degree of the output phase of second output terminal 2d relative to the first output end 2c.Similarly,
When signal is fed from the second input terminal 2b of the second directional coupler 2, the distribution power of second output terminal 2d is the first output
N times, N > 1 for holding the distribution power of 2c, phase delay 180 of the output phase of the first output end 2c relative to second output terminal 2d
Degree.
Third directional coupler 3 is that the unequal power with 180 degree Phase-Shifting Characteristics distributes directional coupler.When signal is from
When the first input end 3a feed of three directional couplers 3, the distribution power of the first output end 3c is the distribution of second output terminal 3d
N times of power, N > 1, phase delay 180 degree of the output phase of second output terminal 3d relative to the first output end 3c.Similarly,
When signal is fed from the second input terminal 3b of third directional coupler 3, the distribution power of second output terminal 3d is the first output
N times, N > 1 for holding the distribution power of 3c, phase delay 180 of the output phase of the first output end 3c relative to second output terminal 3d
Degree.
The working principle of the utility model is as follows:
If radiofrequency signal is inputted from first input port in1, signal separates two-way after first passing around the first directional coupler 1
Signal, the first output end 1c signal of the first directional coupler 1 are 0 ° of 1/2 ∠, and second output terminal 1d signal is 1/2 ∠ -90 °,
Wherein 0 ° of 1/2 ∠ of the signal first input end 3a for flowing to third directional coupler 3,0 ° of 1/2 ∠ of signal is passed through third directional couple
After device 3, the signal of the first output end 3c of third directional coupler 3 is 0 ° of ∠ of N/ (2 × (N+1)), third directional coupler 3
The signal of second output terminal 3d is ∠ -180 ° of 1/ (2 × (N+1))；The second output terminal 1d signal 1/2 of first directional coupler 1
∠ -90 ° of first input end the 2a for flowing to the second directional coupler 2, ∠ -90 ° of signal 1/2 after the second directional coupler 2,
The signal of first output end 2c of two directional couplers 2 is ∠ -90 ° of N/ (2 × (N+1)), and the second of the second directional coupler 2 is defeated
The signal of outlet 2d is ∠ -270 ° of 1/ (2 × (N+1)).Therefore, if second is defeated after first input port in1 input signal
The output signal difference of exit port out2, third output port out3, the first output port out1 and the 4th output port out4
For 1/ ∠ -180 ° of (2 × (N+1)), ∠ -90 ° of N/ (2 × (N+1)), N/ (2 × (N+1)) 0 ° of ∠, 1/ (2 × (N+1)) ∠ -
270 °, i.e., when being fed from first input port in1, second output terminal mouth out2, third output port out3, the first output end
The signal power ratio of mouth out1 and the 4th output port out4 is 1:N:N:1, second output terminal mouth out2, third output port
The distribution power phase difference of the adjacent output port of out3, the first output port out1 and the 4th output port out4 is 90 °.
If radiofrequency signal is inputted from first input port in2, signal separates two-way after first passing around the first directional coupler 1
Signal, the first output end 1c signal of the first directional coupler 1 are 1/2 ∠ -90 °, and second output terminal 1d signal is 0 ° of 1/2 ∠,
Wherein ∠ -90 ° of signal 1/2 flows to the first input end 3a of third directional coupler 3, and ∠ -90 ° of signal 1/2 orient by third
After coupler 3, the signal of the first output end 3c of third directional coupler 3 is ∠ -90 ° of N/ (2 × (N+1)), and third orients coupling
The signal of the second output terminal 3d of clutch 3 is ∠ -270 ° of 1/ (2 × (N+1))；The second output terminal 1d of first directional coupler 1
0 ° of 1/2 ∠ of signal flows to the first input end 2a of the second directional coupler 2, and 0 ° of 1/2 ∠ of signal is passed through the second directional coupler 2
Afterwards, the signal of the first output end 2c of the second directional coupler 2 is 0 ° of ∠ of N/ (2 × (N+1)), the of the second directional coupler 2
The signal of two output end 2d is ∠ -180 ° of 1/ (2 × (N+1)).Therefore, if after first input port in2 input signal, the
The output signal of two output port out2, third output port out3, the first output port out1 and the 4th output port out4
Respectively 1/ ∠ -270 ° of (2 × (N+1)), N/ (2 × (N+1)) 0 ° of ∠, ∠ -90 ° of N/ (2 × (N+1)), 1/ (2 × (N+1)) ∠ -
180 °, i.e., when being fed from first input port in2, second output terminal mouth out2, third output port out3, the first output end
The signal power ratio of mouth out1 and the 4th output port out4 is 1:N:N:1, second output terminal mouth out2, third output port
The distribution power phase difference of the adjacent output port of out3, the first output port out1 and the 4th output port out4 is -90 °.
A kind of composition component of 2 × 4 Butler matrix network provided by the utility model is few, and structure is simple, when the network
Second output terminal mouth out2, third output port out3, the first output port out1 and the 4th output port out4 respectively with
Equidistant 4 cell array connection, can produce the antenna pattern of two different beams direction.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (6)
1. 2 × 4 Butler matrix network of one kind, which is characterized in that including the first directional coupler, the second directional coupler,
Three directional couplers, the first Ohmic resistance and the second Ohmic resistance；Wherein, there are two input terminal and two for each directional coupler tool
A output end, respectively first input end, the second input terminal, the first output end and second output terminal；2 × 4 Butler square
Battle array has 2 signal input ports, respectively first input port and the second input port, there is 4 output ports, and respectively first
Output port, second output terminal mouth, third output port and the 4th output port；
The first input end of first directional coupler is connected to first input port, the second input of the first directional coupler
End is connected to the second input port；First output end of the first directional coupler and the first input end of third directional coupler connect
It connects, the second input terminal of third directional coupler is connect with the first Ohmic resistance, the other end ground connection of the first Ohmic resistance, third
First output end of directional coupler is connect with the first output port, the second output terminal of third directional coupler and the second output
Port connection；The second output terminal of first directional coupler is connect with the first input end of the second directional coupler, the second orientation
Second input terminal of coupler is connect with the second Ohmic resistance, the other end ground connection of the second Ohmic resistance, the second directional coupler
The first output end connect with third output port, the second output terminal of the second directional coupler is connect with the 4th output port.
2. 2 × 4 Butler matrix network according to claim 1, which is characterized in that first directional coupler has
90 degree of phase-shift characterisitcs.
3. 2 × 4 Butler matrix network according to claim 1, which is characterized in that second and third described directional coupler
With 180 degree phase-shift characterisitc.
4. 2 × 4 Butler matrix network according to claim 1, which is characterized in that the first directional coupler is with 90
The constant power for spending Phase-Shifting Characteristics distributes directional coupler.
5. 2 × 4 Butler matrix network according to claim 1, which is characterized in that the second directional coupler be with
The unequal power of 180 degree Phase-Shifting Characteristics distributes directional coupler.
6. 2 × 4 Butler matrix network according to claim 1, which is characterized in that third directional coupler be with
The unequal power of 180 degree Phase-Shifting Characteristics distributes directional coupler.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509981A (en) * | 2018-12-28 | 2019-03-22 | 广东博纬通信科技有限公司 | A kind of 2 × 4 Butler matrix networks |
| CN110838621A (en) * | 2019-11-19 | 2020-02-25 | 北京邮电大学 | Multi-beam antenna feeding device and method |
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2018
- 2018-12-28 CN CN201822246522.6U patent/CN209357924U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509981A (en) * | 2018-12-28 | 2019-03-22 | 广东博纬通信科技有限公司 | A kind of 2 × 4 Butler matrix networks |
| CN110838621A (en) * | 2019-11-19 | 2020-02-25 | 北京邮电大学 | Multi-beam antenna feeding device and method |
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