CN203071234U - Butler matrix - Google Patents
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- CN203071234U CN203071234U CN 201220690667 CN201220690667U CN203071234U CN 203071234 U CN203071234 U CN 203071234U CN 201220690667 CN201220690667 CN 201220690667 CN 201220690667 U CN201220690667 U CN 201220690667U CN 203071234 U CN203071234 U CN 203071234U
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- 239000011159 matrix material Substances 0.000 title claims abstract description 82
- 238000005452 bending Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 12
- 239000000758 substrate Substances 0.000 description 7
- 230000005855 radiation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
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Abstract
The utility model provides a butler matrix, including a plurality of input ports of N, multistage 3-dB coupler, multistage phase shifter, multistage alternately overline and a plurality of output port of N. N is the power m of 2, and m is an integer greater than 1. The multi-stage 3-dB coupler has N/2 Mth-stage 3-dB couplers, and M is an odd number greater than or equal to 1. The input ports are respectively and electrically connected with one of the 1 st-stage 3-dB couplers. Each Mth-stage 3-dB coupler has four vertexes and four extensions, and each extension corresponds to one of the vertexes and extends from each vertex to the inner side of the Mth-stage 3-dB coupler. The multistage phase shifter is provided with N/2M +1 stage phase shifters, the multistage crossing overline is provided with 1 or a plurality of M +1 stage crossing overlines, and the multistage phase shifter, the multistage crossing overline and the multistage 3-dB coupler are connected in series in a staggered mode. The utility model discloses a butler matrix reduces the size of 3-dB coupler through the extension of 3-dB coupler, reduces the size of matrix, reduces the cost of preparation butler matrix.
Description
Technical field
The utility model relates to limb coupler (branch-line coupler), particularly relates to the butler matrix of scaled-down version.
Background technology
Aerial array (array antenna) is to utilize a plurality of antennas with the specific period arrangement, and comes to carry out moulding to the radiation beam of aerial array by the input phase of adjusting aerial array.Therefore aerial array often applied to military affairs scan with tracing and positioning on.In order to control the orientation of radiation beam, traditional practice is to utilize the mechanical type turntable to control, but that shortcoming is the velocity of rotation mechanical loss slow and turntable of mechanical type turntable is big.Therefore, just develop the Beam-former that electronic type afterwards, the Beam-former of electronic type is very fast for the direction conversion of radiation beam, and mechanical loss is quite little.Butler matrix (Bulter matrix) is the suitching type Beam-former that was proposed by Butler in 1961, and butler matrix has simple in structure and circuit integrated advantage such as easily.
Yet, identical with traditional limb coupler, the size of butler matrix and shared area mainly are that the wavelength along with employed radio-frequency range decides, use wavelength (or rf frequency) during therefore at design, the size of traditional butler matrix normally has fixing size.
The utility model content
The utility model embodiment provides a kind of scaled-down version butler matrix, in order to the size that reduces butler matrix and shared area (or space).
The utility model embodiment provides a kind of butler matrix, comprises N input port, multistage 3-dB coupler, multistage phase-shifter, multistage intersection cross-line and N output port.N is 2 m power, and m is the integer greater than 1.Multistage 3-dB coupler has N/2 M level 3-dB coupler, and M be the odd number more than or equal to 1, wherein said input port be in twos one group respectively with one of them electric connection of described the 1st grade of 3-dB coupler.Wherein each M level 3-dB coupler has four summits and four extensions, and each extension is corresponding with each summit, and each extension extends to the inboard of M level 3-dB coupler by corresponding summit.Multistage phase-shifter has N/2 M+1 level phase-shifter, multistage intersection cross-line has one or more M+1 levels intersection cross-lines, described multistage phase-shifter, multistage intersection cross-line are to be connected in series with multistage 3-dB coupler interlaced with each otherly, wherein said M+1 level phase-shifter and the M+1 utmost point intersect cross-line for one group of ground in twos respectively with one of them electric connection of described M level 3-dB coupler.N output port is electrically connected at described multistage phase-shifter, multistage intersection cross-line and the multistage 3-dB coupler afterbody that is connected in series interlaced with each other.
According to an embodiment of the present utility model, each M level 3-dB coupler is microstrip line.
According to an embodiment of the present utility model, each M+1 level phase-shifter is the microstrip line with a plurality of bendings.
According to an embodiment of the present utility model, each M+1 level intersection cross-line is two synthetic microstrip lines of 3-dB couplers polyphone.
According to an embodiment of the present utility model, extension is to be shaped as square conducting plate.
The utility model embodiment provides a kind of butler matrix of quadravalence formula, comprises that a 3-dB coupler, the 2nd 3-dB coupler, first phase-shifter, second phase-shifter, the 3rd 3-dB coupler, the 4th 3-dB coupler, first intersect cross-line and second and intersect cross-line.The one 3-dB coupler electrically connects first input end mouth and second input port.The 2nd 3-dB coupler electrically connects the 3rd input port and four-input terminal mouth.First phase-shifter electrically connects a 3-dB coupler.Second phase-shifter electrically connects the 2nd 3-dB coupler.The 3rd 3-dB coupler electrically connects first phase-shifter, first output port and second output port.The 4th 3-dB coupler electrically connects second phase-shifter, the 3rd output port and the 4th output port.The first intersection cross-line electrically connects a 3-dB coupler, the 2nd 3-dB coupler, the 3rd 3-dB coupler and the 4th 3-dB coupler.The one 3-dB coupler, the 2nd 3-dB coupler, the 3rd 3-dB coupler and the 4th 3-dB coupler have four summits and four extensions respectively, each extension is corresponding with each summit, and each extension extends to the inboard of a 3-dB coupler, the 2nd 3-dB coupler, the 3rd 3-dB coupler or the 4th 3-dB coupler by corresponding summit.
According to an embodiment of the present utility model, described first phase-shifter and described second phase-shifter are 45 degree phase-shifters.
According to an embodiment of the present utility model, a described 3-dB coupler, the 2nd 3-dB coupler, the 3rd 3-dB coupler and the 4th 3-dB coupler are microstrip line.
According to an embodiment of the present utility model, first phase-shifter and second phase-shifter are the microstrip line with a plurality of bendings.
According to an embodiment of the present utility model, the first intersection cross-line is two synthetic microstrip lines of 3-dB couplers polyphone.
According to an embodiment of the present utility model, described extension is to be shaped as square conducting plate.
In sum, the scaled-down version butler matrix that the utility model embodiment provides reduces the size of 3-dB coupler by the extension of 3-dB coupler, and the size of further dwindling matrix, reduces the relevant cost of making butler matrix by this.Simultaneously, the scaled-down version butler matrix can reach the signal transmission effect that is same as traditional butler matrix.
For enabling further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, but these explanations with appended graphic only be that the utility model is described, but not claim scope of the present utility model is done any restriction.
Description of drawings
Fig. 1 is the circuit diagram of butler matrix of the quadravalence formula of the utility model embodiment.
Fig. 2 A is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with the first input end mouth.
Fig. 2 B is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with second input port.
Fig. 2 C is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with the 3rd input port.
Fig. 2 D is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with the four-input terminal mouth.
Fig. 3 is the angle schematic diagram of main beam of array antenna of the butler matrix that utilizes the N stepwise of the utility model embodiment.
Fig. 4 is the structural representation of butler matrix of the quadravalence formula of the utility model embodiment.
Fig. 5 is the structural representation of scaled-down version butler matrix of the quadravalence formula of the utility model embodiment.
Fig. 6 is the designed holder composition of butler matrix of the N stepwise of the utility model embodiment.
Fig. 7 is the structural representation of butler matrix of eight stepwises of the utility model embodiment.
Fig. 8 is the structural representation of scaled-down version butler matrix of eight stepwises of the utility model embodiment.
[main element symbol description]
1,1 ': the butler matrix of quadravalence formula
2: the scaled-down version butler matrix of quadravalence formula
10: substrate
11a, 21a: a 3-dB coupler
11c, 21c: the 2nd 3-dB coupler
11b, 21b: the 3rd 3-dB coupler
11d, 21d: the 4th 3-dB coupler
31,41:3-dB coupler
12a, the cross-line that intersects at 22: the first
12b: the second intersection cross-line
32,42: the intersection cross-line
13a, 23a: first phase-shifter
13b, 23b: second phase-shifter
33,43: phase-shifter
P1: first input end mouth
P2: second input port
P3: the 3rd input port
P4: four-input terminal mouth
P5: the 5th input port
P6: the 6th input port
P7: the 7th input port
P8: the 8th input port
A, b, c, d: node
201: extension
PA: first output port
PB: second output port
PC: the 3rd output port
PD: the 4th output port
P9, P10, P12, P13, P14, P15, P16: output port
The butler matrix of 3: eight stepwises
The scaled-down version butler matrix of 4: eight stepwises
Embodiment
(embodiment of scaled-down version butler matrix)
Butler matrix comprises three kinds of elements: (1) 3-dB coupler (3-dB Coupler) (being also referred to as limb coupler (branch-line coupler)); (2) intersection cross-line (Crossover); (3) fixed phase-shifter (Phase shifter).N rank butler matrix can provide N to organize different output phases, makes aerial array can switch N group main beam in the space, and wherein N is natural number.Following elder generation is that example illustrates with 4 rank butler matrixs.
Please refer to Fig. 1, Fig. 1 is the circuit diagram of butler matrix of the quadravalence formula of the utility model embodiment.The butler matrix 1 of quadravalence formula comprises that a 3-dB coupler 11a, the 2nd 3-dB coupler 11c, the first phase-shifter 13a, the second phase-shifter 13b, the 3rd 3-dB coupler 11b, the 4th 3-dB coupler 11d, first intersect cross-line 12a and second and intersect cross-line 12b.First input end mouth P1, the second input port P2, the 3rd input port P3, four-input terminal mouth P4 are in order to receive outside signal feed-in, the first output port PA, the second output port PB, the 3rd output port PC, the 4th output port PD antenna element (not icon) in order to connect aerial array, usually the number of antenna element is identical with the number of output port, for example: when the antenna unit is four, each antenna element connects one of them output port separately.Yet the utility model does not limit the corresponding and connected mode of antenna element and output port, and antenna element can be adjusted along with design specification with the corresponding and connected mode of output port.
The one 3-dB coupler 11a electrically connects first input end mouth P1 and the second input port P2.The 2nd 3-dB coupler 11c electrically connects the 3rd input port P3 and four-input terminal mouth P4.The first phase-shifter 13a electrically connects a 3-dB coupler 11a.The second phase-shifter 13b electrically connects the 2nd 3-dB coupler 11c.The 3rd 3-dB coupler 11b electrically connects the first phase-shifter 13a and the first output port PA.The 4th 3-dB coupler 11d electrically connects the second phase-shifter 13b and the 4th output port PD.The first intersection cross-line 12a electrically connects a 3-dB coupler 11a, the 2nd 3-dB coupler 11c, the 3rd 3-dB coupler 11b and the 4th 3-dB coupler 11d.The second intersection cross-line 12b electrically connects the 3rd 3-dB coupler 11b, the 4th 3-dB coupler 11d, the second output port PB and the 3rd output port PC.
The first phase-shifter 13a and the described second phase-shifter 13b are 45 degree phase-shifters.First intersects cross-line 12a and second intersects cross-line 12b to be respectively two 3-dB couplers polyphones synthetic, and second to intersect cross-line 12b can be non-essential, only in order to the use of sorting of the phase place at the second output PB and the 3rd output PC.If the second intersection cross-line 12b is removed, then the 3rd 3-dB coupler 11b electrically connects the second output port PB, and the 4th 3-dB coupler 11d electrically connects the 3rd output port PC.
Please be simultaneously with reference to Fig. 1 and Fig. 3, Fig. 3 is the angle schematic diagram of main beam of aerial array of the butler matrix that utilizes the N stepwise of the utility model embodiment.When determining aerial array left and right sides Bian Di n group main beam, the phase difference that defines each output signal is
Wherein n is 1～N/2.When
During for negative value, the main beam of aerial array is towards the right side, when
For on the occasion of the time, the main beam of aerial array is towards the left side.Therefore, the position angle α of the main beam of aerial array can be expressed as,
Wherein d is the spacing of antenna element.
Please refer to Fig. 2 A, Fig. 2 A is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with the first input end mouth.The signal of the first output port PA is through the first phase-shifter 13a, and the phase shifts of first phase-shifter generation, 45 degree, makes the signal of the output port PA that wins have the phase places of-45 degree.The signal of the second output port PB is to intersect cross-line 12a and second by a 3-dB coupler 11a, first to intersect cross-line 12b and obtain, and therefore has the phase places (signal stride across a 3-dB coupler 11a and produce the phase differences of-90 degree) of-90 degree.The signal of the 3rd output port PC is to produce phase shift-45 degree by the first phase-shifter 13a() and the 3rd 3-dB coupler 11b(generation phase shift-90 degree) obtain, the phase place of-135 degree therefore had.The signal of the 4th output port PD is to produce phase shift-90 degree by a 3-dB coupler 11a() and the 4th 3-dB coupler 11d(generation phase shift-90 degree) resultant, the phase place of-180 degree therefore had.
Please refer to Fig. 2 B, Fig. 2 B is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with second input port.In like manner, when with the second input port P2 input signal, the output signal of the first output port PA has the phase place of-135 degree, the output signal of the second output port PB has the phase place of 0 degree, the output signal of the 3rd output port PC has the phase place of-225 degree, and the output signal of the 4th output port PD has the phase place of-90 degree.
Please refer to Fig. 2 C, Fig. 2 C is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with the 3rd input port.In like manner, when with the 3rd input port P3 input signal, the output signal of the first output port PA has the phase place of-90 degree, the output signal of the second output port PB has the phase place of-225 degree, the output signal of the 3rd output port PC has the phase place of 0 degree, and the output signal of the 4th output port PD has the phase place of-135 degree.
Please refer to Fig. 2 D, Fig. 2 D is the phase place schematic diagram that the butler matrix of the quadravalence formula of the utility model embodiment is imported with the four-input terminal mouth.In like manner, when with four-input terminal mouth P4 input signal, the output signal of the first output port PA has the phase place of-180 degree, the output signal of the second output port PB has the phase place of-135 degree, the output signal of the 3rd output port PC has the phase place of-90 degree, and the output signal of the 4th output port PD has the phase place of-45 degree.
Please be simultaneously with reference to Fig. 1 and Fig. 4, Fig. 4 is the structural representation of butler matrix of the quadravalence formula of the utility model embodiment.The butler matrix 1 ' of quadravalence formula comprises that a 3-dB coupler 11a, the 2nd 3-dB coupler 11c, the first phase-shifter 13a, the second phase-shifter 13b, the 3rd 3-dB coupler 11b, the 4th 3-dB coupler 11d and first intersect cross-line 12a.The first intersection cross-line 12a is that the framework of two 3-dB couplers polyphones is realized.The second intersection cross-line 12b is not used.The butler matrix 1 ' of quadravalence formula is realized with the form of microstrip line.Also be that described 3-dB coupler can be microstrip line, described 3-dB coupler is to be formed four port organizations of quarter-wave microstrip line by four sections equivalent electric length.Described phase-shifter can be the microstrip line with a plurality of bendings.Substrate 10 is structures of loaded micro-strip line, and the back side of substrate 10 is to have the metal level (not shown), the structure of microstrip line can utilize the processing procedure mode of printed circuit board (PCB) to be formed on the substrate 10, and substrate 10 can be the glass fibre substrate, for example is the FR4 substrate that often is used.
Please be simultaneously with reference to Fig. 4 and Fig. 5, Fig. 5 is the structural representation of scaled-down version butler matrix of the quadravalence formula of the utility model embodiment.The scaled-down version butler matrix 2 of quadravalence formula comprises that a 3-dB coupler 21a, the 2nd 3-dB coupler 21c, the first phase-shifter 23a, the second phase-shifter 23b, the 3rd 3-dB coupler 21b, the 4th 3-dB coupler 21d and first intersect cross-line 22.Butler matrix 1 ' compared to the quadravalence formula, the one 3-dB coupler 21a of the scaled-down version butler matrix 2 of quadravalence formula, the 2nd 3-dB coupler 21c, the 3rd 3-dB coupler 21b and the 4th 3-dB coupler 21d have four summit a, b, c, d and four extensions 201 all respectively, each extension 201 corresponding each summit (a or b or c or d), each extension 201 is extended toward the inboard of a 3-dB coupler 21a, the 2nd 3-dB coupler 21c, the 3rd 3-dB coupler 21b or the 4th 3-dB coupler 21d by corresponding summit.In addition, because the first intersection cross-line 22 is that the framework that two 3-dB couplers are contacted is realized, therefore the first intersection cross-line 22 also has extension 201.
(another embodiment of scaled-down version butler matrix)
Please refer to Fig. 6, Fig. 6 is the designed holder composition of butler matrix of the N stepwise of the utility model embodiment.Line number 1～16 represents the number of input port, and column number represents interlaced with each other and 3-dB coupler in series each grade and phase-shifter.In the present embodiment, only list at the most the series connection of 16 output ports and 6 grades of 3-dB couplers and phase-shifter.The series connection of more multistage number and more input port form can the rest may be inferred.The butler matrix of N stepwise comprises N input port, multistage 3-dB coupler, multistage phase-shifter, multistage intersection cross-line and N output port.At the performance of common aerial array, N is 2 m power, and m is the integer greater than 1.Multistage 3-dB coupler has N/2 M level 3-dB coupler, and M be the odd number more than or equal to 1, and wherein said input port is one group Di to electrically connect one of them of described the 1st grade of 3-dB coupler in twos respectively.
Shown in the embodiment of Fig. 5, each M level 3-dB coupler has four summits and four extensions, corresponding one of them summit of each extension and extended toward the inboard of M level 3-dB coupler by each summit.About the narration of extension, please refer to the explanation of the embodiment of Fig. 8, as follows at this framework of butler matrix that further specifies the N stepwise earlier.
Multistage phase-shifter has N/2 M+1 level phase-shifter, multistage intersection cross-line have 1 or a plurality of M+1 level intersect cross-line, described multistage phase-shifter, multistage intersection cross-line are to be connected in series with multistage 3-dB coupler interlaced with each otherly, wherein said M+1 level phase-shifter with intersect cross-line for one group Di being electrically connected at one of them of described M level 3-dB coupler in twos respectively.N output port is electrically connected at described multistage phase-shifter, multistage intersection cross-line and the multistage 3-dB coupler afterbody that is connected in series interlaced with each other.
In more detail, please be simultaneously with reference to Fig. 6 and Fig. 7, Fig. 7 is the structural representation of butler matrix of eight stepwises of the utility model embodiment.The butler matrix 3 of eight stepwises comprises 3-dB coupler 31, intersection cross-line 32, phase-shifter 33, first input end mouth P1, the second input port P2, the 3rd input port P3, four-input terminal mouth P4, the 5th input port P5, the 6th input port P6, the 7th input port P7, the 8th input port P8 and output port P9, P10, P12, P13, P14, P15, P16.The framework of the butler matrix 3 of eight stepwises is to design corresponding to described 8 row (eight input ports) and 5 hurdles (the 3-dB coupler is connected in series with the Pyatyi of phase-shifter) of the framework of Fig. 6.Each M+1 level phase-shifter can be the microstrip line with a plurality of bendings.In addition, the embodiment of contrast Fig. 4 and the framework of Fig. 6, the quadravalence butler matrix 1 ' of Fig. 4 is in comparison with 4 row shown in Figure 6 and the framework on 3 hurdles, and namely four input ports cooperate first order 3-dB coupler, second level phase-shifter, second level intersection cross-line, the third level 3-dB coupler that is connected in series.
Please be simultaneously with reference to Fig. 7 and Fig. 8, Fig. 8 is the structural representation of scaled-down version butler matrix of eight stepwises of the utility model embodiment.The scaled-down version butler matrix 4 of eight stepwises comprises 3-dB coupler 41, intersection cross-line 42, phase-shifter 43, first input end mouth P1, the second input port P2, the 3rd input port P3, four-input terminal mouth P4, the 5th input port P5, the 6th input port P6, the 7th input port P7, the 8th input port P8 and output port P9, P10, P12, P13, P14, P15, P16.Scaled-down version butler matrix 4 with respect to butler matrix 3, eight stepwises of eight stepwises of Fig. 7 also has the structure of extension 401.Each 3-dB coupler has four summits (as summit a, b, c, the d of Fig. 5) and four extensions 401, each extension 401 corresponding one of them summit and extended toward the inboard of 3-dB coupler by each summit.In the present embodiment, extension 401 is that shape is roughly square conducting plate.
(the possible effect of embodiment)
According to the utility model embodiment, above-mentioned scaled-down version butler matrix reduces the size of 3-dB coupler by the extension of 3-dB coupler, and the size of further dwindling matrix, reduces the relevant cost of making butler matrix by this.Simultaneously, the scaled-down version butler matrix can reach the signal transmission effect that is same as traditional butler matrix.
The above only is embodiment of the present utility model, and it is not in order to limit to claim of the present utility model.
Claims (11)
1. a butler matrix is characterized in that, described butler matrix comprises:
N input port, N are 2 m power, and m is the integer greater than 1;
Multistage 3-dB coupler, have N/2 M level 3-dB coupler, M is the odd number more than or equal to 1, wherein said input port in twos one group of ground respectively with one of them electric connection of described the 1st grade of 3-dB coupler, wherein each described M level 3-dB coupler has four summits and four extensions, each described extension is corresponding with each described summit, and each described extension extends to the inboard of described M level 3-dB coupler by corresponding described summit;
Multistage phase-shifter has N/2 M+1 level phase-shifter;
Multistage intersection cross-line, have one or more M+1 levels intersection cross-lines, described multistage phase-shifter, described multistage intersection cross-line are connected in series with described multistage 3-dB coupler interlaced with each otherly, wherein said M+1 level phase-shifter and described M+1 level intersect cross-line in twos one group of ground respectively with one of them electric connection of described M level 3-dB coupler; And
N output port, described output port are electrically connected at the described multistage phase-shifter that is connected in series and the afterbody of described multistage 3-dB coupler interlaced with each otherly.
2. butler matrix according to claim 1 is characterized in that, each described M level 3-dB coupler is microstrip line.
3. butler matrix according to claim 1 is characterized in that, each described M+1 level phase-shifter is the microstrip line with a plurality of bendings.
4. butler matrix according to claim 1 is characterized in that, each described M+1 level intersection cross-line is two synthetic microstrip lines of 3-dB couplers polyphone.
5. butler matrix according to claim 1 is characterized in that, described extension is to be shaped as square conducting plate.
6. the butler matrix of a quadravalence formula is characterized in that, comprising:
One the one 3-dB coupler electrically connects a first input end mouth and one second input port;
One the 2nd 3-dB coupler electrically connects one the 3rd input port and a four-input terminal mouth;
One first phase-shifter electrically connects a described 3-dB coupler;
One second phase-shifter electrically connects described the 2nd 3-dB coupler;
One the 3rd 3-dB coupler electrically connects described first phase-shifter, one first output port and one second output port;
One the 4th 3-dB coupler electrically connects described second phase-shifter, one the 3rd output port and one the 4th output port; And
One first intersection cross-line electrically connects a described 3-dB coupler, described the 2nd 3-dB coupler, described the 3rd 3-dB coupler and described the 4th 3-dB coupler;
Wherein, a described 3-dB coupler, described the 2nd 3-dB coupler, described the 3rd 3-dB coupler and described the 4th 3-dB coupler have four summits and four extensions respectively, each described extension is corresponding with each described summit, and each described extension extends to the inboard of a described 3-dB coupler, described the 2nd 3-dB coupler, described the 3rd 3-dB coupler or described the 4th 3-dB coupler by corresponding described summit.
7. butler matrix according to claim 6 is characterized in that, described first phase-shifter and described second phase-shifter are 45 degree phase-shifters.
8. butler matrix according to claim 6 is characterized in that, a described 3-dB coupler, described the 2nd 3-dB coupler, described the 3rd 3-dB coupler and described the 4th 3-dB coupler are microstrip line.
9. butler matrix according to claim 6 is characterized in that, described first phase-shifter and described second phase-shifter are the microstrip line with a plurality of bendings.
10. butler matrix according to claim 6 is characterized in that, the described first intersection cross-line is two synthetic microstrip lines of 3-dB couplers polyphone.
11. butler matrix according to claim 6 is characterized in that, described extension is to be shaped as square conducting plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101223054 | 2012-11-28 | ||
| TW101223054U TWM460422U (en) | 2012-11-28 | 2012-11-28 | Size reduced butler matrix |
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| CN203071234U true CN203071234U (en) | 2013-07-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414023A (en) * | 2013-07-22 | 2013-11-27 | 西安空间无线电技术研究所 | Small input Butler matrix with high tolerance |
| CN103515700A (en) * | 2013-09-27 | 2014-01-15 | 北京邮电大学 | RFID antenna |
| CN108879097A (en) * | 2017-05-16 | 2018-11-23 | 财团法人工业技术研究院 | three-dimensional Butler matrix |
| CN112600592A (en) * | 2020-11-27 | 2021-04-02 | 广东纳睿雷达科技股份有限公司 | Butler matrix phase weighting optimization method and Butler matrix |
-
2012
- 2012-11-28 TW TW101223054U patent/TWM460422U/en not_active IP Right Cessation
- 2012-12-13 CN CN 201220690667 patent/CN203071234U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414023A (en) * | 2013-07-22 | 2013-11-27 | 西安空间无线电技术研究所 | Small input Butler matrix with high tolerance |
| CN103414023B (en) * | 2013-07-22 | 2015-09-23 | 西安空间无线电技术研究所 | A kind of high tolerance miniaturization input Butler matrix |
| CN103515700A (en) * | 2013-09-27 | 2014-01-15 | 北京邮电大学 | RFID antenna |
| CN108879097A (en) * | 2017-05-16 | 2018-11-23 | 财团法人工业技术研究院 | three-dimensional Butler matrix |
| CN108879097B (en) * | 2017-05-16 | 2021-01-29 | 财团法人工业技术研究院 | Three-dimensional Butler matrix |
| CN112600592A (en) * | 2020-11-27 | 2021-04-02 | 广东纳睿雷达科技股份有限公司 | Butler matrix phase weighting optimization method and Butler matrix |
| CN112600592B (en) * | 2020-11-27 | 2021-10-08 | 广东纳睿雷达科技股份有限公司 | Butler matrix phase weighting optimization method and Butler matrix |
| WO2022110699A1 (en) * | 2020-11-27 | 2022-06-02 | 广东纳睿雷达科技股份有限公司 | Butler matrix-based phase weighting optimization method and butler matrix |
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| Publication number | Publication date |
|---|---|
| TWM460422U (en) | 2013-08-21 |
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