CN110459838A - Phase shifter, phased array antenna equipment and phase-moving method - Google Patents
Phase shifter, phased array antenna equipment and phase-moving method Download PDFInfo
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- CN110459838A CN110459838A CN201910757848.1A CN201910757848A CN110459838A CN 110459838 A CN110459838 A CN 110459838A CN 201910757848 A CN201910757848 A CN 201910757848A CN 110459838 A CN110459838 A CN 110459838A
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- main line
- phase shifter
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
Abstract
The embodiment of the invention discloses a kind of phase shifter, phased array antenna equipment and phase-moving methods.In the phase shifter, the first branch line is connect by the first load control switch with the third node of the second main line, and the second branch line is connect by the second load control switch with the fourth node of the second main line；The third node of second main line adjusts control switch ground connection by first phase, and the fourth node of the second main line adjusts control switch ground connection by second phase；Wire length on wire length and the second main line on wire length, the second main line on wire length, the second main line on first main line between first node and second node between third end and third node between third node and fourth node between fourth node and the 4th end is equal, to reduce the area occupied of phase shifter, the layout difficulty of phase shifter is reduced.
Description
Technical field
The present embodiments relate to the communication technology more particularly to a kind of phase shifters, phased array antenna equipment and phase shift side
Method.
Background technique
With the gradually evolution of communication system, either antenna for base station or antenna for mobile phone, all begin to use phased array day
Line to obtain bigger antenna gain, and can also reduce interference of the signal of communication to surrounding devices.In 5G communication system
In, this trend is gradually clear.Therefore, the application of phase shifter in a communications system will more extensively.
Existing traveling wave phase shifter is usually provided with multiple and different signal transmission pathways, between different signal transmission pathways
Electrical length it is different.Path-length is corresponding to be the difference for the length after microwave passes through, passed by phase shifter, to realize
The variation of out of phase, achievees the purpose that phase shift.This phase shifter needs switch and carries out access switching, when there are many phase state
When, it is necessary to the switch of many accesses realizes that difficulty is big, and loss also can be big, and when there are many access, phase shifter is occupied
Area also can be much larger, causes design layout difficult.
Summary of the invention
The present invention provides a kind of phase shifter, phased array antenna equipment and phase-moving method, to realize accounting for for reduction phase shifter
With area, the purpose of the layout difficulty of phase shifter is reduced.
In a first aspect, the embodiment of the invention provides a kind of phase shifter, including the first main line, the second main line, the first branch line,
Second branch line, the first load control switch, the second load control switch, first phase adjusts control switch and second phase is adjusted
Control switch；
First main line includes opposed first end and second end, and the first node on first main line
And second node；Second main line includes opposed third end and the 4th end, and the third on second main line
Node and fourth node；
The first end of first main line is connect with signal input part, the second end and signal output end of first main line
Connection；
The third end of second main line is connect with the first node of first main line, the second end of second main line
It is connect with the second node of first main line；
First branch line is connect by the first load control switch with the third node of second main line, described
Second branch line is connect by the second load control switch with the fourth node of second main line；
The third node of second main line adjusts control switch ground connection by the first phase, second main line
Fourth node adjusts control switch ground connection by the second phase；
Third end and third on wire length, second main line on first main line between first node and second node
On wire length and second main line on wire length, second main line between node between third node and fourth node
Wire length between fourth node and the 4th end is equal.
Second aspect, the embodiment of the invention also provides a kind of phased array antenna equipment, including the embodiment of the present invention to provide
Phase shifter.
The third aspect, the embodiment of the invention also provides a kind of phase-moving methods, are suitable for shifting provided in an embodiment of the present invention
Phase device；
The phase-moving method includes:
Determine that current transmission signal needs amount of phase shift；
It needs amount of phase shift and phase to correspond to table according to the current transmission signal, determines that the first load control is opened
It closes, the second load control switch, the first phase adjusts control switch, the second phase adjusts control switch, each
The break-make situation of the first loading capacity control switch and each second loading capacity control switch；
It adjusts control according to the first load control switch, the second load control switch, the first phase and opens
It closes, the second phase adjusts control switch, each first loading capacity control switch and each second loading capacity control are opened
The break-make situation of pass adjusts the first load control switch, the second load control switch, the first phase and adjusts control
System switch, the second phase adjust control switch, each first loading capacity control switch and each second loading capacity control
System switches on-off.
The embodiment of the present invention by phase shifter specific position add the first branch line, the second branch line, first load control
Switch and the second load control switch, solve existing phase shifter and frequently include multiple accesses, and phase shifter area occupied is big, if
The difficult problem of meter layout, realizes the area occupied of reduction phase shifter, reduces the purpose of the layout difficulty of phase shifter.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of phase shifter provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another phase shifter provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of phased array antenna equipment provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart of phase-moving method provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of phase shifter provided in an embodiment of the present invention.Referring to Fig. 1, which includes the
One main line 11, the second main line 12, the first branch line 21, the second branch line 22, first load control switch 31, second load control switch
32, first phase adjusts control switch 41 and second phase adjusts control switch 42.First main line 11 includes opposed first end
Port1 and second end Port2, and first node a and second node b on the first main line 11；Second main line 12 includes
Opposed third end and the 4th end, and third node c and fourth node d on the second main line 12；First main line 11
First end Port1 is connect with signal input part (not shown in figure 1), the second end Port2 and signal output end of the first main line 11
(not shown in figure 1) connection；The third end of second main line 12 is connect with the first node a of the first main line 11, the second main line 12
Second end is connect with the second node b of the first main line 11；First branch line 21 passes through the first load control switch 31 and the second main line
12 third node c connection, the second branch line 22 are connected by the fourth node d of the second load control switch 32 and the second main line 12
It connects；The third node c of second main line 12 adjusts control switch 41 by first phase and is grounded, the fourth node d of the second main line 12
Control switch 42 is adjusted by second phase to be grounded；Wire length on first main line 11 between first node a and second node b,
On wire length, the second main line 12 on two main lines 12 between third end and third node c between third node c and fourth node d
Wire length on wire length and the second main line 12 between fourth node d and the 4th end is equal.
Transmission signal is only defined as 0 ° of phase shift along the state that the first main line 11 transmits.First phase adjusts control switch 41
Control switch 42 is adjusted for controlling whether transmission signal carries out phase shift with second phase.If without phase shift, first phase tune
It saves control switch 41 and second phase adjusts control switch 42 and is connected, transmission signal successively passes through the first end of the first main line 11
Port1, the first node a of the first main line 11, the second node b of the first main line 11 and the first main line 11 second end Port2
Output.When needing to carry out phase shift, first phase adjusts control switch 41 and second phase adjusts control switch 42 and disconnects, and first is main
Part on line 11 between first node a and second node b is short-circuited, and the signal of transmission successively passes through the first of the first main line 11
Hold Port1, the first node a on the first main line 11, the third end of the second main line 12, the third node c of the second main line 12, second
The 4th end of the fourth node d of main line 12, the second main line 12, the second node b of the first main line 11 and the first main line 11 second
Hold Port2 output.
First load control switch 31 and the second load control switch 32 are respectively used to the first branch line 21 of control and second
Whether line 22 participates in phase shift.If desired the first branch line 21 and the second branch line 22 participate in phase shift, the first load control switch 31 and the
Two load control switches 32 are connected；Otherwise, the first load control switch 31 and the second load control switch 32 disconnect.
By in phase shifter, specific position adds the first branch line 21, the second branch line 22, first loads 31 and of control switch
The essence of second load control switch 32 is so that the first branch line 21, the second branch line 22 participate in phase shift, to reach to standing wave progress
The purpose of multiple state phase shifts.It does not need that numerous access is arranged in this way, the area occupied of phase shifter can be reduced, reduce
The layout difficulty of phase shifter.
Further, in order to sufficiently reduce in the phase shifter transmit signal loss, improve the precision of phase shift, optionally,
Wire length on second main line 12 between first node a and second node b is equal to the wavelength of phase shifter transmission signal center's frequency point
A quarter.
In the above-mentioned technical solutions, optionally, the first load control switch 31, second loads control switch 32, the first phase
It is single-pole single-throw switch (SPST) or single pole multiple throw, the application couple that position, which adjusts control switch 41 and second phase adjusting control switch 42,
This is with no restriction.Further, the first load control switch 31, second loads control switch 32, first phase adjusts control and opens
It can be pin diode switch or GaAs switch that pass 41 and second phase, which adjust control switch 42,.
Further, in order to realize the phase shifts of multiple states, referring to Fig. 1, it includes N number of first that the phase shifter, which can also be arranged,
Loading capacity control switch 51 and N number of second loading capacity control switch 52 (illustratively, N=1 in Fig. 1)；N number of first loading capacity control
System 51 one end of switch is connect with the first branch line 21, other end ground connection；Different first loading capacity control switches 51 and the first branch line 21
The node location of connection is different；N number of second loading capacity control switch, 52 one end is connect with the second branch line 22, other end ground connection；No
It is different from the node location that the second branch line 22 connects with the second loading capacity control switch 52.It in this way can be by adjusting the first load
The state that is turned on or off of control switch 51 and the second loading capacity control switch 52 is measured, the loading capacity to standing wave, Jin Ershi are adjusted
The phase shift of existing a variety of different conditions.
In order to realize the phase shift of multiple states, in the prior art in addition to multiple access switchings are arranged, usually also there are two types of done
Method.One is realize using by the cascade method of multiple phase shifters.For example, precision reaches if to realize 0-359 ° of phase shift
1 °, it is necessary to realize 180 ° of phase shifters, 90 ° of phase shifters, 45 ° of phase shifters, 22.5 ° of phase shifters, 11.25 ° of phase shifters, 5.625 ° of shiftings
Phase device, 2.8125 ° of phase shifters, 1.40625 ° of phase shifters, the cascade of 0.703125 ° of phase shifter are just able to achieve the shifting of all states
Mutually all in the range of accuracy guarantee.If reducing the number of cascade phase shifter, precision will decline.Obvious phase shifter cascade
More, phase shifter area occupied is bigger, and phase shifter design layout is more difficult.Another kind is, by connecting reactance on phase shifter
Element is realized.But the load of reactance component is easy to be limited by working frequency.
Compared with first method, phase shifter provided by the present application does not need multiple phase shifter cascades, so that it may realize more
The phase shift of a state can sufficiently reduce the area occupied of phase shifter, reduce phase shifter design and be laid out difficulty.With second method
It compares, phase shifter provided by the present application not will receive the limitation of working frequency due to not using reactance component.
Fig. 2 is the structural schematic diagram of another phase shifter provided in an embodiment of the present invention.Referring to fig. 2, N is greater than in Fig. 2
1.Setting can make the adjusting of phase more flexible in this way, further increase the status number of phase shift, realize the tune of a variety of phases
Save function.Wherein, multiple switch is opened, a more careful phase adjusted may be implemented, so that phase shifter essence with higher
Degree.
It should be noted that in practical applications, when all switches are opened, above-mentioned phase shifter be can be obtained by
Close to 360 ° of phase state, loaded with the microstrip line of existing use close to all-wave length to realize the phase shift close to 360 ° of phase shifts
Device is compared, and above-mentioned technical proposal can sufficiently reduce the volume of phase shifter.
In the above-mentioned technical solutions, phase shifter can phase shift status number by the first loading capacity control switch 51 on phase shifter
The number N of (or second loading capacity control switch 52) is determined.N is bigger, and the removable phase status number of phase shift implement body is more.By each first
Loading capacity control switch 51 (or second loading capacity control switch 52) be turned on or off determined by situation share 2NKind.But
The removable phase status number of phase shift implement body is less than 2NKind.This is because.This 2NIn kind of possibility, some to transmitting thereon
Loss of signal is very big, needs to exclude.
Therefore, optionally, in actual use, the state by remaining loss in expected design is needed, with it
Can the amount of phase shift of phase shift carry out one-to-one correspondence record, to obtain the corresponding relationship of amount of phase shift and each switch conduction and disconnection, as
Phase corresponds to table.
When carrying out phase shift, first, determine that current transmission signal needs amount of phase shift；Secondly, according to current transmission signal need
It wants amount of phase shift and phase to correspond to table, determines that the first load control switch, the second load control switch, first phase adjust control
Switch, second phase adjust control switch, the on-off feelings of each first loading capacity control switch and each second loading capacity control switch
Condition；Finally, control switch, second phase tune are adjusted according to the first load control switch, the second load control switch, first phase
Save control switch, the break-make situation of each first loading capacity control switch and each second loading capacity control switch, the first load of adjustment
Control switch, the second load control switch, first phase adjusts control switch, second phase adjusts control switch, each first adds
The on-off of carrying capacity control switch and each second loading capacity control switch.
Similarly, in the above-mentioned technical solutions, the first loading capacity control switch 51 and the second loading capacity control switch 52 are
Single-pole single-throw switch (SPST) or single pole multiple throw, the application to this with no restriction.Further, 51 He of the first loading capacity control switch
Second loading capacity control switch 52 can be pin diode switch or GaAs switch.
In the above-mentioned technical solutions, optionally, the length of the first branch line 21 is greater than phase shifter transmission signal center's frequency point
/ 8th of wavelength, and it is less than the all-wave length of the wavelength of phase shifter transmission signal center's frequency point, so that the phase shifter is with general
Adaptive.
Optionally, one end ground connection of first branch line 21 far from the first load control switch 31；Second branch line 22 is far from second
Load one end ground connection of control switch 32.In this way setting can with further such that phase shifter can accurate phase modulation, otherwise each switch
The phase that conducting or shutdown are adjusted will receive the influence of the first branch line 21 and second straight line 22 itself, influence phase-adjusted standard
True property.
Optionally, the first main line 11, the second main line 12, the first branch line 21 and the second branch line 22 are microstrip line.
Based on identical inventive concept, the application also provides a kind of phased array antenna equipment.Fig. 3 mentions for the embodiment of the present invention
A kind of structural schematic diagram of the phased array antenna equipment supplied.Referring to Fig. 3, which includes that the embodiment of the present invention mentions
The described in any item phase shifters supplied.
Since phased array antenna equipment provided by the invention includes described in any item phase shifts provided in an embodiment of the present invention
Device is not being repeated herein with the phase shifter included by it is identical or corresponding beneficial effect.
With continued reference to Fig. 3, optionally, which further includes AC power source 10, four road power splitter 20, four
Phase shifter 30 and four antennas 40.10 one end of AC power source ground connection, one end is connected with four road power splitters 20.Four antennas 40 divide
Not Tong Guo a phase shifter 30 be connected with the four roads power splitter 20.In this way, it is different according to the state of four 30 phases of phase shifter, it can
To realize the different directions of four Element Phased Array Antenna arrays.
In Fig. 3, which includes four tunnels, this is only the specific example of the application, rather than to this
The limitation of application.Further, in phased array antenna equipment, middle phase shifter of not going the same way be may be the same or different, this Shen
Please with no restriction to this.
Based on identical inventive concept, the application also provides a kind of phase-moving method.It is real that the phase-moving method is suitable for the present invention
Apply while example provides includes the first load control switch, the second load control switch, first phase adjusting control switch, second
Any one phase shifter of phase adjusted control switch, the first loading capacity control switch and the second loading capacity control switch.
Fig. 4 is a kind of flow chart of phase-moving method provided in an embodiment of the present invention.Referring to fig. 4, which includes:
S1, determine that current transmission signal needs amount of phase shift；
S2, it needs amount of phase shift and phase to correspond to table according to the current transmission signal, determines the first load control
Switch, the second load control switch, the first phase adjusts control switch, second phase adjusts control switch, each institute
State the break-make situation of the first loading capacity control switch and each second loading capacity control switch；
S3, control is adjusted according to the first load control switch, the second load control switch, the first phase
Switch, second phase adjust control switch, each first loading capacity control switch and each second loading capacity control switch
Break-make situation, adjust it is described first load control switch, it is described second load control switch, the first phase adjust control
Switch, second phase adjust control switch, each first loading capacity control switch and each second loading capacity control switch
On-off.
Since phase-moving method provided by the invention is suitable for provided in an embodiment of the present invention while controlling including the first load
Switch, the second load control switch, first phase adjusts control switch, second phase adjusts control switch, the first loading capacity control
Any one phase shifter of system switch and the second loading capacity control switch, the phase shifter being applicable in it are identical or corresponding
Beneficial effect is not repeating herein.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of phase shifter, which is characterized in that including the first main line, the second main line, the first branch line, the second branch line, the first load
Control switch, the second load control switch, first phase adjusts control switch and second phase adjusts control switch；
First main line includes opposed first end and second end, and the first node on first main line and
Two nodes；Second main line includes opposed third end and the 4th end, and the third node on second main line
And fourth node；
The first end of first main line is connect with signal input part, and the second end and signal output end of first main line connect
It connects；
The third end of second main line is connect with the first node of first main line, the second end of second main line and institute
State the second node connection of the first main line；
First branch line is connect by the first load control switch with the third node of second main line, and described second
Branch line is connect by the second load control switch with the fourth node of second main line；
The third node of second main line adjusts control switch by the first phase and is grounded, and the 4th of second main line the
Node adjusts control switch ground connection by the second phase；
Third end and third node on wire length, second main line on first main line between first node and second node
Between wire length, the 4th on wire length and second main line on second main line between third node and fourth node
Wire length between node and the 4th end is equal.
2. phase shifter according to claim 1, which is characterized in that
Wire length on second main line between first node and second node is equal to the phase shifter and transmits signal center's frequency point
Wavelength a quarter.
3. phase shifter according to claim 1, which is characterized in that the first load control switch, second load
Control switch, the first phase adjust control switch and the second phase adjust control switch be pin diode switch or
GaAs switch.
4. phase shifter according to claim 1, which is characterized in that further include N number of first loading capacity control switch and N number of
Two loading capacity control switches；
Described N number of first loading capacity control switch one end is connect with first branch line, other end ground connection；Difference described first adds
Carrying capacity control switch is different from the node location that first branch line connects；
Described N number of second loading capacity control switch one end is connect with second branch line, other end ground connection；Difference described second adds
Carrying capacity control switch is different from the node location that second branch line connects.
5. phase shifter according to claim 4, which is characterized in that the first loading capacity control switch and described second adds
Carrying capacity control switch is pin diode switch or GaAs switch.
6. phase shifter according to claim 1, which is characterized in that
The length of first branch line is greater than 1/8th of the wavelength of phase shifter transmission signal center's frequency point, and is less than institute
State the all-wave length of the wavelength of phase shifter transmission signal center's frequency point.
7. phase shifter according to claim 1, which is characterized in that
One end ground connection of first branch line far from the first load control switch；
One end ground connection of second branch line far from the second load control switch.
8. phase shifter according to claim 1, which is characterized in that
First main line, second main line, first branch line and second branch line are microstrip line.
9. a kind of phased array antenna equipment, which is characterized in that including the described in any item phase shifters of claim 1-8.
10. a kind of phase-moving method, which is characterized in that be suitable for phase shifter described in claim 4 or 5；
The phase-moving method includes:
Determine that current transmission signal needs amount of phase shift；
It needs amount of phase shift and phase to correspond to table according to the current transmission signal, determines the first load control switch, institute
State the second load control switch, the first phase adjusts control switch, the second phase adjusts control switch, each described the
The break-make situation of one loading capacity control switch and each second loading capacity control switch；
Control switch, institute are adjusted according to the first load control switch, the second load control switch, the first phase
It states second phase and adjusts the logical of control switch, each first loading capacity control switch and each second loading capacity control switch
Disconnected situation adjusts the first load control switch, the second load control switch, the first phase and adjusts control and open
It closes, the second phase adjusts control switch, each first loading capacity control switch and each second loading capacity control are opened
The on-off of pass.
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| CN201910757848.1A CN110459838B (en) | 2019-08-16 | 2019-08-16 | Phase shifter, phased array antenna apparatus, and phase shifting method |
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| CN111029686A (en) * | 2019-12-16 | 2020-04-17 | 南京航空航天大学 | Single-circuit double-bit phase shifter |
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| CN105789828A (en) * | 2016-03-22 | 2016-07-20 | 青岛海信移动通信技术股份有限公司 | Antenna and mobile terminal |
| CN109216835A (en) * | 2018-09-30 | 2019-01-15 | 华为技术有限公司 | A kind of phase shifter, antenna-feeder system and communication equipment |
| CN110011004A (en) * | 2019-03-20 | 2019-07-12 | 南京航空航天大学 | A kind of amount of phase shift distinguishes controllable double frequency phase shifter |
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| CN110994102A (en) * | 2019-12-03 | 2020-04-10 | 重庆邮电大学 | Power divider with reconfigurable distribution path number and distribution ratio |
| CN111029686A (en) * | 2019-12-16 | 2020-04-17 | 南京航空航天大学 | Single-circuit double-bit phase shifter |
| CN111029686B (en) * | 2019-12-16 | 2021-07-20 | 南京航空航天大学 | Single-circuit double-bit phase shifter |
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