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WO2012106903A1 - 一种移相器 - Google Patents

一种移相器 Download PDF

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Publication number
WO2012106903A1
WO2012106903A1 PCT/CN2011/077327 CN2011077327W WO2012106903A1 WO 2012106903 A1 WO2012106903 A1 WO 2012106903A1 CN 2011077327 W CN2011077327 W CN 2011077327W WO 2012106903 A1 WO2012106903 A1 WO 2012106903A1
Authority
WO
WIPO (PCT)
Prior art keywords
line
coupling
branch
strip
strip line
Prior art date
Application number
PCT/CN2011/077327
Other languages
English (en)
French (fr)
Inventor
罗英涛
肖伟宏
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/077327 priority Critical patent/WO2012106903A1/zh
Priority to CN2011800021591A priority patent/CN102369631B/zh
Publication of WO2012106903A1 publication Critical patent/WO2012106903A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/184—Strip line phase-shifters

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a phase shifter for a base station antenna. Background technique
  • the phase shifter is a key component applied to the base station antenna and can change the beam scanning angle of the array antenna, that is, the downtilt angle. That is to say, the base station antenna can flexibly change the coverage of the antenna beam by adjusting the phase shift position of the phase shifter.
  • the base station antenna phase shifter has two implementation modes:
  • the first method is to insert a medium into the feeder line, change the dielectric constant of the transmission medium, and thereby change the wavelength of the electromagnetic wave, which is equivalent to the change of the electromagnetic wave travel, that is, the feed
  • the change of the electrical phase is to change the length of the feeder line, directly increase or decrease the stroke of the electromagnetic wave, thereby achieving the change of the feed phase.
  • the first way is to implement the cartridge, but due to the intervention of the medium, there will be a large amplitude variation and insertion loss of the feeder.
  • the second method can reduce the loss of the feeder line and the amplitude variation is small.
  • FIG. 1 Chinese patent CN00802132.5 and US Pat. No. 6,850,130 B1 disclose a high frequency phase shifter assembly having at least two curved strip conductor segments and a tap element device, the tap element device and a feed wire
  • the connecting wire is electrically connected to the tapping points of the respective strip-shaped conductor segments through a plurality of connecting wires, and the respective strip-shaped conductor segments are respectively connected to the antenna radiators.
  • the tap element assembly is rotated about its axis to adjust the phase angle of all antenna radiators.
  • This phase shifter changes the phase by changing the length of the feeder line, and the loss of the feeder line is small.
  • phase shifter adjusts the power distribution of each antenna radiator by changing the width and width of the rotating pointer, and the power division ratio is difficult to realize, the power division flatness is not high enough; and the standing wave matching is difficult, and the bandwidth is not high enough.
  • the embodiment of the invention provides a phase shifter, which can easily realize power distribution of each output port, and has high power division flatness; and it is easy to implement standing wave matching and increase bandwidth.
  • the phase shifter provided by the embodiment of the invention includes a rotating arm and at least two suspended belt lines; the rotating arm is rotatable about a rotation point;
  • the rotating arm includes a plurality of coupling lines and at least one branch line; each coupling line corresponds to one a line electrically coupled; wherein at least one of the coupling lines is drawn from the point of rotation, and the coupling line is provided with a branch point; the branch line is drawn from the branch point, extending to a coupling line of the next stage, and The first-order coupling lines are connected; the branch lines are distributed downward with respect to the coupling line.
  • the branch line is a single-sided structure, and includes a branch line, the branch line is drawn from a branch point on the coupling line, and the branch line is located above or below the coupling line;
  • the branch line is a bilateral structure, including two branch lines; the two branch lines are respectively taken out from two branch points on the coupling line, or are taken out from the same branch point on the coupling line; the two branch lines are respectively Located above and below the coupling line.
  • the coupling lines corresponding to the respective strip lines are connected by the branch lines, and the branch lines increase the diversity of the matching branches, and the number, length, width, branch position, etc. of the branch lines can be changed.
  • the number of branches, length, width, branch position, etc. can also change each Standing wave with line, it is easy to achieve standing wave matching and increase bandwidth.
  • FIG. 1 is a schematic structural view of a coupling line and a belt line according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural view of a coupling line and a belt line according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic structural view of a coupling line and a belt line according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural view of a coupling line and a belt line according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a phase shifter according to Embodiment 5 of the present invention.
  • Figure 6 is a cross-sectional view of the phase shifter shown in Figure 5 taken along the A-A direction;
  • FIG. 7 is a schematic structural diagram of a phase shifter according to Embodiment 6 of the present invention.
  • FIG. 8 is a schematic structural diagram of a phase shifter according to Embodiment 7 of the present invention.
  • FIG. 9 is a schematic structural diagram of a phase shifter according to Embodiment 8 of the present invention.
  • FIG. 10 is a schematic structural diagram of a phase shifter according to Embodiment 9 of the present invention.
  • FIG. 11 is a schematic structural diagram of a phase shifter according to Embodiment 10 of the present invention
  • FIG. 12 is a schematic structural diagram of a phase shifter according to Embodiment 11 of the present invention.
  • FIG. 13 is a schematic structural diagram of a phase shifter according to Embodiment 12 of the present invention.
  • FIG. 14 is a schematic structural diagram of a phase shifter according to Embodiment 13 of the present invention.
  • Figure 15 is a cross-sectional view of the phase shifter shown in Figure 14 taken along the line B-B;
  • FIG. 16 is a schematic structural diagram of a phase shifter according to Embodiment 14 of the present invention.
  • Figure 17 is a cross-sectional view of the phase shifter shown in Figure 16 taken along the line C-C;
  • Figure 19 is a cross-sectional view of the phase shifter shown in Figure 18 taken along the line D-D;
  • FIG. 20 is a schematic structural diagram of a phase shifter according to Embodiment 16 of the present invention.
  • FIG. 21 is a schematic structural diagram of a phase shifter according to Embodiment 17 of the present invention. detailed description
  • the phase shifter provided by the embodiment of the invention includes a rotating arm and at least two suspended belt lines; the rotating arm is rotatable about a rotation point;
  • the rotating arm includes a plurality of coupling lines and at least one branch line; each coupling line is correspondingly electrically coupled to a strip line; wherein at least one of the coupling lines is drawn from the rotation point, and the coupling line is provided with a branch point
  • the branch line is drawn from the branch point and extends to the coupling line of the next stage, and is connected to the coupling line of the next stage; the branch line is distributed downward with respect to the coupling line.
  • the branch line is a single-sided structure, including a branch line, the branch line is drawn from a branch point on the coupling line, and the branch line is located above or below the coupling line;
  • the branch line is a bilateral structure, including two branch lines; the two branch lines are respectively taken out from two branch points on the coupling line, or are taken out from the same branch point on the coupling line; The branch lines are respectively located above and below the coupling line.
  • the coupling line includes a coupling member and an arm; the coupling member is a member electrically coupled to the belt, the arm is coupled to the coupling member; and the branch point is disposed on an arm of the coupling line.
  • the coupling line includes a coupling member; the branch point is provided on the coupling member.
  • the phase shifter provided by the embodiment of the invention further includes a cavity, and the rotating arm and the strip line are disposed in the cavity, and the strip line is in a suspended state. The structure of the coupled line and the strip line will be described in detail below with reference to FIGS. 1 to 4.
  • FIG. 1 is a schematic structural view of a coupling line and a strip line according to Embodiment 1 of the present invention.
  • the strip line 10 is a single layer strip line, and the coupling line 20 is electrically coupled to the strip line 10.
  • the coupling line 20 includes a coupling member 201 and an arm 202; the coupling member 201 is a portion electrically coupled to the strip 10, and the arm 202 is coupled to the coupling member 201.
  • the coupling member 201 is a bilateral coupling member, and the belt line 10 is interposed between the bilateral coupling members 201.
  • FIG. 2 it is a schematic structural diagram of a coupling line and a strip line according to Embodiment 2 of the present invention.
  • the second embodiment differs from the first embodiment described above in that the coupling member 201 is a one-sided coupling member, and the single-layer strip line 10 is located above or below the one-side coupling member 201.
  • FIG. 3 is a schematic structural diagram of a coupling line and a strip line according to Embodiment 3 of the present invention.
  • the third embodiment differs in that: the strip line 10 is a double-layer strip line, including an upper layer strip line 101 and a lower layer strip line 102; and the coupling member 201 electrically coupled to the strip line 10 is a single The side coupling member is sandwiched between the upper belt line 101 and the lower belt line 102.
  • FIG. 4 it is a schematic structural diagram of a coupling line and a strip line provided in Embodiment 4 of the present invention.
  • the difference of the fifth embodiment is that the strip line 10 includes an upper layer strip line.
  • the coupling line including the coupling member 201 and the arm 202 as an example.
  • the coupling line can omit the arm 202 and only the coupling member 201.
  • the phase shifter provided by the embodiment of the invention can change the impedance of the strip line by changing the electric coupling mode of the coupling line and the strip line, change the power ratio and the standing wave of each strip line, and easily realize the power distribution of each strip line and The standing wave matches to increase the bandwidth.
  • the phase shifter provided by the embodiment of the invention can also change the power ratio and the standing wave of each line with a line by changing the number, length, width, branch position, etc. of the branch lines, thereby realizing the power distribution and station of each line. Wave matching.
  • the phase shifter provided by the embodiment of the present invention includes two arc-shaped strip lines, which are a first strip line 11 and a second strip line 12, respectively.
  • the center of the first strip line 11 and the second strip line 12 are on the same axis of rotation as the point of rotation 0, and the axis of rotation is perpendicular to the first strip line 11 and the second strip line 12. More specifically, the axis of rotation is the axis passing through the point of rotation 0 and perpendicular to the plane of the two strip lines, the two strip lines being arranged coaxially.
  • the radius of the first strip line 11 is smaller than the radius of the second strip line 12, and the first strip line 11 is located within the arc of the second strip line 12.
  • the first belt line 11 and the second belt line 12 are on the same side, and are arranged offset from each other.
  • the swivel arm 2 has a feed input port that is connected to the feed input lead input shown in FIG.
  • the rotating arm 2 is overlapped on the two belt lines, and the rotating arm 2 is rotatable about the rotation point 0.
  • the feed input port is disposed adjacent to the rotation point 0.
  • the phase shifter provided in this embodiment further includes a cavity 5, and the rotating arm 2, the first strip line 11 and the second strip line 12 are disposed in the cavity 5, and the two strip lines are suspended. .
  • Fig. 6 it is a cross-sectional view of the phase shifter shown in Fig. 5 along the A-A direction.
  • the swivel arm 2 includes a first coupling line 21, a second coupling line 22, and a first branch line 31.
  • the first coupling line 21 is taken from the rotation point 0 and electrically coupled to the first belt line 11.
  • the first coupling line 21 and the first strip line 11 are in the bilateral electrical coupling manner of the above-described first embodiment.
  • a branch point 41 is disposed on the arm of the first coupling line 21, and the first branch line 31 is drawn from the branch point 41, extends across the first strip line 11 to the second coupling line 22, and the second coupling line 22 connection.
  • the second coupling line 22 is electrically coupled to the second strip line 12 in a bilateral electrical coupling manner as described above.
  • the branch line 31 is a bilateral structure including a branch line 301 and a branch line 302; the two branch lines are led out from the branch point 41 on the first coupling line 21, and connected to the arm of the second coupling line 22; the branch line 301 and the branch line 302 Located above and below the first coupling line 21, respectively.
  • the two ends of the first strip line 11 are respectively provided with output ports P2 and P3, and the two ends of the second strip line 12 are respectively provided with output ports P1 and P4.
  • the output ports P1, P2, P3, and P4 are respectively connected to the antenna units R1, R2, R3, and R4 through feed lines.
  • the phase from the feeding input end to the four output ports can be changed, and the phases of the output ports P1, P2, P3, and P4 are continuously changed, thereby changing the antenna units R1, R2, and R3. , the phase of R4, to achieve beam scanning of the antenna.
  • the proportion of the phase change of each output port can be changed.
  • the radius of the arc of the first strip line 11 is rl
  • the phase shifter provided in this embodiment extends from the rotation point to the first coupling line, and the second coupling line is connected to the first coupling line through the branch line, and the branch line increases the diversity of the matching branches, by changing the two branches
  • the length, width, and position of the branch points of the branch line can change the impedance of the two strip lines, thereby changing the power ratio and power bandwidth of the two strip lines, and easily realizing the power distribution of each output port, and the power division flatness is high;
  • by changing the length, width, and position of the branch points of the two branch lines of the branch line it is also possible to change the standing wave of the two lines with the line, and it is easy to achieve standing wave matching and increase the bandwidth.
  • FIG. 7 is a schematic structural diagram of a phase shifter according to Embodiment 6 of the present invention.
  • FIG. 8 is a schematic structural diagram of a phase shifter according to Embodiment 7 of the present invention.
  • the seventh embodiment is different in that the branch line 31 is a single-sided structure and includes a branch line; the branch line is led out from the branch point 41 on the first coupling line 21, and is connected to the second line. Coupling on the arm of the wire 22.
  • the branch line is distributed up and down with the first coupling line 21, and the branch line may be located above or below the first coupling line 21.
  • FIG. 9 is a schematic structural diagram of a phase shifter according to Embodiment 8 of the present invention.
  • the eighth embodiment is different in that: the first coupling line 21 is electrically coupled to the first strip line 11, and the second coupling line 22 and the second strip line 12 are electrically coupled. Both adopt the one-side coupling method of the above implementation two.
  • FIG. 10 it is a schematic structural diagram of a phase shifter according to Embodiment 9 of the present invention.
  • the difference of the ninth embodiment is that: the first coupling line 21 is provided with two different branch points, which are a branch point 41 and a branch point 42, respectively.
  • Branch line 31 is a bilateral structure, package A branch line 301 and a branch line 302 are included.
  • the branch line 301 is taken from the branch point 41 and connected to the arm of the second coupling line 22;
  • the branch line 302 is taken out from the branch point 42 and connected to the arm of the second coupling line 22;
  • the branch line 301 and the branch line 302 are respectively located at the first coupling Above and below the line 21, they are distributed up and down.
  • the second coupling line 22 and the second strip line 12 are electrically coupled to each other by the double-layer strip-line electrical coupling method of the above-described fourth embodiment.
  • FIG. 11 is a schematic structural diagram of a phase shifter according to Embodiment 10 of the present invention.
  • the tenth embodiment is different in that a medium 50 is disposed on the periphery of the second strip line 12.
  • the phase shifter further includes a cavity 5, and the rotating arm and the strip line are disposed in the cavity 5.
  • a medium is provided on the periphery of the strip line, and the medium is filled between the strip line and the cavity.
  • the phase shifter provided in this embodiment changes the environment of the strip line by adding a medium on the strip line, and increases the dielectric constant, thereby reducing the size of the strip line and satisfying the requirement of phase shifting amount.
  • FIG. 12 it is a schematic structural diagram of a phase shifter according to Embodiment 11 of the present invention.
  • the eleventh embodiment differs in that: the second coupling line 22 only includes a coupling member, which is a bilateral coupling structure.
  • the first branch line 31 includes two branch lines, both of which are taken from the branch point 41 and connected to the second coupling line 22, respectively.
  • FIG. 13 is a schematic structural diagram of a phase shifter according to Embodiment 12 of the present invention.
  • FIG. 14 is a schematic structural diagram of a phase shifter according to Embodiment 13 of the present invention.
  • the phase shifter further includes a third strip line 13 having an arc shape; the center of the third strip line 13 is located on the rotation axis. That is, the first strip line 11, the second strip line 12, and the third strip line 13 are coaxially disposed. The radius of the third strip line 13 is greater than the radius of the second strip line 12, and the first strip line 11 and the second strip line 12 are located within the arc of the third strip line 13. Specific, such as As shown in Fig. 14, the first belt line 11, the second belt line 12, and the third belt line 13 are located on the same side with the boundary line MN passing through the rotation point O as a boundary line.
  • the swivel arm 2 also includes a second branch line 32 and a third coupling line 23.
  • the connection point of the first branch line 31 and the second coupling line 22 is a branch point 43
  • the second branch line 32 is drawn from the branch point 43 , extends across the second strip line 12 , and extends to the third coupling line 23 , and is coupled to the third
  • the line 23 is connected; the third coupling line 23 is electrically coupled to the third strip line 13 by the bilateral electrical connection method of the above-described first embodiment.
  • a branch point may also be disposed at a connection point adjacent to the first branch line 31 and the second coupling line 22, and the second branch line 32 is drawn from the branch point, crossing the second strip line 12 And extending to the third coupling line 23, the connection with the third coupling line 23.
  • the two ends of the third strip line 13 are respectively provided with output ports P5, P6.
  • the output ports P5 and P6 are respectively connected to the antenna unit through the feeding wires.
  • the phase shifter provided in the thirteenth embodiment has six output ports, and the rotary arm 2 rotates around the rotation point 0 to change the phase from the feed input terminal to the output ports P1, P2, P3, P4, P5, P6.
  • the first branch line 31 and the second branch line 32 increase the diversity of the matching branches.
  • the length of the branch lines, the width, the position of the branch points, etc. of the two branch lines can be changed, and the three segments can be changed.
  • With the impedance of the line thus changing the power ratio and power bandwidth of the three-segment line, it is easy to realize the power distribution of the six output ports, and the power division flatness is high; in addition, by changing the branch length, width, and branch point of the two branch lines
  • the position, etc. can also change the standing wave of the three-segment line, and it is easy to achieve standing wave matching and increase the bandwidth.
  • FIG. 16 is a schematic structural diagram of a phase shifter according to Embodiment 14 of the present invention.
  • the fourteenth embodiment is different in that: the phase shifter further includes an arc-shaped third strip line 13; the center of the third strip line 13 is located on the rotation axis, that is, the first The belt line 11, the second belt line 12, and the third belt line 13 are coaxially disposed.
  • the rotation point 0 is located at the intermediate portion of the rotary arm 2. With the rotation point 0 as the boundary point, the coupling line extends along both ends. That is, the first strip line 11 and the second strip line 12 are on the same side of the boundary line MN, and the third strip line 13 is on the other side of the boundary line MN. As shown in Fig. 17, it is a cross-sectional view of the phase shifter shown in Fig. 16 in the CC direction.
  • the rotating arm 2 further includes a third coupling line 23, which is drawn from the rotation point 0 in a direction opposite to the first coupling line 21; the arm of the third coupling line 23 and the first coupling line 21
  • the arm branches intersect at a rotation point 0; the third coupling line 23 and the third strip line 13 are bilaterally electrically coupled.
  • the fourteenth embodiment is described by taking only the third coupling line 23 from the rotation point and forming a 180 degree angle with the first coupling line 21.
  • the angle between the third coupling line 23 and the first coupling line 21 may be 90-180.
  • the two ends of the third strip line 13 are respectively provided with output ports P5, P6.
  • the output ports P5 and P6 are respectively connected to the antenna unit through the feeding wires.
  • the phase shifter provided in the fourteenth embodiment has six output ports, and the rotary arm 2 is rotated about the rotation point 0 to change the phase from the feed input terminal to the output ports P1, P2, P3, P4, P5, P6.
  • FIG. 18 it is a schematic structural diagram of a phase shifter according to Embodiment 15 of the present invention.
  • the fifteenth embodiment is different in that: the phase shifter further includes an arc-shaped fourth strip line 14; the center of the fourth strip line 14 is located on the rotation axis, that is, The first strip line 11, the second strip line 12, the third strip line 13, and the fourth strip line are coaxially disposed.
  • the rotation point 0 is located at the intermediate portion of the rotary arm 2. With the rotation point 0 as the boundary point, the coupling line extends along both ends.
  • the radius of the fourth strip line 14 is greater than the radius of the third strip line 13, and the third strip line 13 is located within the arc of the fourth strip line 14, that is, the first strip line 11 and the second strip line 12 are at the boundary line MN.
  • One side, and the third strip line 13 and the fourth strip line 14 are on the other side of the dividing line MN.
  • the rotating arm 2 further includes a third branch line 33 and a fourth coupling line 14; a branch point 44 is provided on the arm of the third coupling line 23; the third branch line 33 is drawn from the branch point 44, across the third belt
  • the line 13 extends to the fourth coupling line 24 and is connected to the fourth coupling line 24; the fourth coupling line 24 is electrically coupled to the fourth strip line 14, using the bilateral electrical coupling method of the above-described implementation.
  • the two ends of the fourth strip line 14 are respectively provided with output ports P7, P8.
  • the output ports P7 and P8 are respectively connected to the antenna unit through the feeding wires.
  • the phase shifter provided in the fifteenth embodiment has eight output ports, and the rotating arm 2 rotates around the rotation point 0, and can change from the feed input end to the output ports P1, P2, P3, P4, P5, P6, P7, P8. Phase.
  • the first branch line 31 and the third branch line 33 add matching branches Diversification, by changing the length of the branch line, the width of the two branch lines, the position of the branch point, etc., the impedance of the four-segment line can be changed, thereby changing the power ratio and power bandwidth of the four-segment line, and easily achieving eight output ports.
  • the power distribution has a high degree of power division flatness.
  • by changing the length, width, and position of the branch points of the two branch lines it is also possible to change the standing wave of the four-segment line, and it is easy to achieve standing wave matching and increase the bandwidth. .
  • each of the strip lines may be on the same plane.
  • the strip lines are concentrically arranged on the same plane.
  • the individual strip lines of the phase shifter can also be on different planes.
  • FIG. 20 it is a schematic structural diagram of a phase shifter according to Embodiment 16 of the present invention.
  • the first strip line 11 and the second strip line 12 are vertically distributed, and the two strip lines are respectively on different planes.
  • FIG. 21 it is a schematic structural diagram of a phase shifter according to Embodiment 17 of the present invention.
  • the phase shifter provided by the embodiment of the invention may have a curved line structure of a circular arc shape, a zigzag shape or a wave shape.
  • the first strip line 11 has a circular arc structure
  • the second strip line 12 and the third strip line 13 have a sawtooth curve structure.
  • this embodiment can reduce the size of the phase shifter by changing the structure and distribution of the strip line.
  • the phase shifter provided by the embodiment of the invention has the following beneficial effects:
  • the coupling line corresponding to each strip line is connected by a branch line, which increases the diversity of matching branches, and can change the power ratio of each line by changing the number, length, width, branch position, etc. of the branch lines. And power bandwidth, easy to achieve power distribution of each output port, high power division flatness.
  • the power ratio of each segment of the strip can be changed by changing the electrical coupling between the coupled line and the strip.
  • the coupling line corresponding to each strip line is connected by a branch line, which increases the diversity of matching branches, and can change the standing wave of each strip line by changing the number, length, width, branch position, etc. of the branch lines, which is easy Realize standing wave matching and increase bandwidth.
  • the size of the strip line can also be reduced to meet the phase shift requirement.
  • the belt line has a sawtooth curve structure, which can reduce the size of the phase shifter.

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  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

本发明公开了一种移相器，包括旋转臂和至少两个悬置的带线；所述旋转臂能够绕一旋转点旋转；所述旋转臂包括多个耦合线和至少一个分支线；每个耦合线对应地与一个带线电耦合；其中至少一个耦合线从所述旋转点引出，且所述耦合线上设有分支点；所述分支线从所述分支点引出，延伸至下一级的耦合线，与下一级的耦合线相连接；分支线相对于耦合线上下分布。采用本发明实施例，容易实现各个带线的功率分配和驻波匹配。

Description

一种移相器 技术领域
本发明涉及通信技术领域， 尤其涉及一种用于基站天线的移相器。 背景技术
移相器是应用于基站天线的关键部件， 能够改变阵列天线的波束扫描角度， 即下倾角。 也就是说， 基站天线能够通过调整移相器的移相位置， 灵活改变天 线波束的覆盖范围。
目前， 基站天线移相器有两种实现方式： 第一种方式是在馈电线路中插入 介质， 改变传输媒介的介电常数， 从而改变电磁波的波长， 等效于电磁波行程 的变化， 即馈电相位的变化； 第二种方式是改变馈电线路的长度， 直接地增加 或减小电磁波的行程， 从而达到馈电相位的变化。 第一种方式实现筒单， 但是 由于介质的介入， 会导致馈电线路存在较大的幅度变化和插入损耗。 而第二种 方式能够减少馈电线路的损耗小， 且幅度变化小。
中国专利 CN00802132.5和美国专利 US 6850130 B1公开了一种高频移相器 组件， 具有至少两个弧形的带状导体段和一个分接元件装置， 该分接元件装置 与一个馈电导线连接， 该馈电导线通过多个连接导线与各个带状导体段的分接 点电连接， 各个带状导体段分别连接天线辐射器。 使分接元件装置绕其转轴转 动， 从而调整所有天线辐射器的相位角。 这种移相器通过改变馈电线路的长度 来改变相位， 其馈电线路的损耗小。 但是， 该移相器通过改变旋转指针的宽窄， 来调整各个天线辐射器的功率分配， 其功分比实现困难， 功分平坦度不够高； 而且驻波匹配困难， 带宽不够高。 发明内容
本发明实施例提出一种移相器， 容易实现各个输出端口的功率分配， 功分 平坦度高； 而且容易实现驻波匹配， 增大带宽。
本发明实施例提供的移相器， 包括旋转臂和至少两个悬置的带线； 所述旋 转臂能够绕一旋转点旋转；
所述旋转臂包括多个耦合线和至少一个分支线； 每个耦合线对应地与一个 带线电耦合； 其中至少一个耦合线从所述旋转点引出， 且所述耦合线上设有分 支点； 所述分支线从所述分支点引出， 延伸至下一级的耦合线， 与下一级的耦 合线相连接； 分支线相对于耦合线上下分布。
进一步的， 所述分支线为单边结构， 包括一个支线， 所述支线从所述耦合 线上的一个分支点引出， 且所述支线位于所述耦合线的上方或下方；
或者， 所述分支线为双边结构， 包括两个支线； 两个支线分别从所述耦合 线上的两个分支点引出， 或者从所述耦合线上的同一个分支点引出； 两个支线 分别位于所述耦合线的上方和下方。
本发明实施例提供的移相器， 各带线对应的耦合线通过分支线实现连接， 该分支线增加了匹配枝节的多样化， 可以通过更改分支线的个数、 长度、 宽度、 分支位置等， 来改变各段带线的功率比和功率带宽， 容易实现各个输出端口的 功率分配， 功分平坦度高； 而且， 更改分支线的个数、 长度、 宽度、 分支位置 等， 还可以改变各带线的驻波， 容易实现驻波匹配， 增大带宽。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍， 显而易见地， 下面描述 中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付 出创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 1是本发明实施例一提供的耦合线与带线的结构示意图；
图 2是本发明实施例二提供的耦合线与带线的结构示意图；
图 3是本发明实施例三提供的耦合线与带线的结构示意图；
图 4是本发明实施例四提供的耦合线与带线的结构示意图；
图 5是本发明实施例五提供的移相器的结构示意图；
图 6是图 5所示的移相器沿 A-A方向的截面图；
图 7是本发明实施例六提供的移相器的结构示意图；
图 8是本发明实施例七提供的移相器的结构示意图；
图 9是本发明实施例八提供的移相器的结构示意图；
图 10是本发明实施例九提供的移相器的结构示意图；
图 11是本发明实施例十提供的移相器的结构示意图； 图 12是本发明实施例十一提供的移相器的结构示意图；
图 13是本发明实施例十二提供的移相器的结构示意图；
图 14是本发明实施例十三提供的移相器的结构示意图；
图 15是图 14所示的移相器沿 B-B方向的截面图；
图 16是本发明实施例十四提供的移相器的结构示意图；
图 17是图 16所示的移相器沿 C-C方向的截面图；
图 18是本发明实施例十五提供的移相器的结构示意图；
图 19是图 18所示的移相器沿 D-D方向的截面图；
图 20是本发明实施例十六提供的移相器的结构示意图；
图 21是本发明实施例十七提供的移相器的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是 全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
本发明实施例提供的移相器， 包括旋转臂和至少两个悬置的带线； 所述旋 转臂能够绕一旋转点旋转；
所述旋转臂包括多个耦合线和至少一个分支线； 每个耦合线对应地与一个 带线电耦合； 其中至少一个耦合线从所述旋转点引出， 且所述耦合线上设有分 支点； 所述分支线从所述分支点引出， 延伸至下一级的耦合线， 与下一级的耦 合线相连接； 分支线相对于耦合线上下分布。
在一个实施方式中， 所述分支线为单边结构， 包括一个支线， 所述支线从 所述耦合线上的一个分支点引出， 且所述支线位于所述耦合线的上方或下方； 在另一个实施方式中， 所述分支线为双边结构， 包括两个支线； 两个支线 分别从所述耦合线上的两个分支点引出， 或者从所述耦合线上的同一个分支点 引出； 两个支线分别位于所述耦合线的上方和下方。
所述耦合线包括耦合部件和臂杆； 所述耦合部件是与带线电耦合的部件， 所述臂杆与所述耦合部件连接； 所述分支点设在耦合线的臂杆上。
或者， 所述耦合线包括耦合部件； 所述分支点设在耦合部件上。 本发明实施例提供的移相器还包括腔体， 旋转臂和带线设置在所述腔体内， 带线呈悬置状态。 下面结合图 1〜图 4, 对耦合线与带线的结构进行详细描述。
参见图 1 , 是本发明实施例一提供的耦合线与带线的结构示意图。
带线 10为单层带线， 耦合线 20与带线 10电耦合。 其中， 耦合线 20包括 耦合部件 201和臂杆 202; 耦合部件 201是与带线 10电耦合的部位， 臂杆 202 与耦合部件 201连接。 耦合部件 201为双边耦合部件， 带线 10夹置在双边耦合 部件 201中间。
参见图 2, 是本发明实施例二提供的耦合线与带线的结构示意图。
与上述的实施例一相比， 本实施例二的不同点在于： 耦合部件 201 为单边 耦合部件， 单层带线 10位于单边耦合部件 201的上方或下方。
参见图 3, 是本发明实施例三提供的耦合线与带线的结构示意图。
与上述的实施例一相比， 本实施例三的不同点在于： 带线 10为双层带线， 包括上层带线 101和下层带线 102; 与带线 10电耦合的耦合部件 201为单边耦 合部件， 所述单边耦合部件夹置在上层带线 101和下层带线 102之间。
参见图 4, 是本发明实施例四提供的耦合线与带线的结构示意图。
与上述的实施例三相比， 本实施例五的不同点在于： 带线 10包括上层带线
101和下层带线 102; 上层带线 101和下层带线 102连接形成 U形结构。
需要说明的是，上述实施例一至四仅以耦合线包括耦合部件 201和臂杆 202 为例进行说明，具体实施时，耦合线可以省略臂杆 202,仅由耦合部件 201构成。
本发明实施例提供的移相器， 通过改变耦合线与带线的电耦合方式， 可以 改变带线的阻抗， 改变各段带线的功率比和驻波， 容易实现各个带线的功率分 配和驻波匹配， 增大带宽。 本发明实施例提供的移相器， 还可以通过更改分支线的个数、 长度、 宽度、 分支位置等， 来改变各段带线的功率比和驻波， 实现各个带线的功率分配和驻 波匹配。
下面结合图 5〜图 21 , 对本发明实施例提供的移相器的结构进行详细描述。 参见图 5, 是本发明实施例五提供的移相器的结构示意图。 实施例五提供的移相器包括两个圆弧状的带线， 分别为第一带线 11和第二 带线 12。 第一带线 11、 第二带线 12的圆心与旋转点 0位于同一旋转轴线上， 所述旋转轴线垂直于第一带线 11、 第二带线 12。 更为具体的， 所述旋转轴线是 穿过旋转点 0的， 并垂直于两个带线所在平面的轴线， 两个带线同轴布置。
第一带线 11的半径小于第二带线 12的半径， 且第一带线 11位于第二带线 12的圆弧以内。 具体的， 如图 5所示， 以穿过旋转点 0的轴线 MN为分界线， 第一带线 11与第二带线 12位于同一侧， 且相互错开设置。
旋转臂 2具有馈电输入端口， 该馈电输入端口与图 5所示的馈电输入导线 input连接。 旋转臂 2搭接在两个带线上， 且旋转臂 2能够绕旋转点 0旋转。 优 选的， 馈电输入端口设置在邻近旋转点 0的位置处。
如图 5所示， 本实施例提供的移相器还包括腔体 5 , 旋转臂 2、 第一带线 11 和第二带线 12设置在腔体 5内， 两个带线呈悬置状态。
如图 6所示， 是图 5所示的移相器沿 A-A方向的截面图。 旋转臂 2包括第 一耦合线 21、 第二耦合线 22和第一分支线 31。
第一耦合线 21从旋转点 0引出， 与第一带线 11电耦合。 第一耦合线 21与 第一带线 11采用上述实施一的双边电耦合方式。
第一耦合线 21的臂杆上设有分支点 41 , 第一分支线 31从分支点 41引出， 跨过第一带线 11 , 延伸至第二耦合线 22, 与所述第二耦合线 22连接。 第二耦 合线 22与第二带线 12电耦合， 采用上述实施一的双边电耦合方式。
具体的， 分支线 31为双边结构， 包括支线 301和支线 302; 两个支线从第 一耦合线 21上的分支点 41引出， 连接到第二耦合线 22的臂杆上； 支线 301和 支线 302分别位于第一耦合线 21的上方和下方。
如图 5所示， 第一带线 11的两个端头分别设有输出端口 P2、 P3 , 第二带线 12的两个端头分别设有输出端口 Pl、 P4。 具体实施时， 输出端口 Pl、 P2、 P3、 P4分别通过馈电导线与天线单元 Rl、 R2、 R3、 R4连接。
当旋转臂 2绕旋转点 0旋转时， 能够改变从馈电输入端到四个输出端口的 相位， 使输出端口 Pl、 P2、 P3、 P4的相位连续变化， 从而改变天线单元 Rl、 R2、 R3、 R4的相位， 实现天线的波束扫描。
具体实施时， 通过改变带线的圆弧半径的比例， 可以改变各个输出端口相 位变化的比例。 例如， 如图 5所示， 设第一带线 11的圆弧半径为 rl , 第二带线 12的圆弧半径为 r2。 若 rl :r2=l :2 , 则输出端口 Pl、 P2、 P3、 P4对用的相位为 -2 α : - : α : 2 α。 若 rl :r2=l :3 , 则输出端口 Pl、 Ρ2、 Ρ3、 Ρ4对用的相位为 -3 : - : α : 3 α。 其中， 馈电输入点 input的相位为 0。
本实施例提供的移相器， 从旋转点延伸出第一耦合线， 第二耦合线通过分 支线连接到第一耦合线， 该分支线增加了匹配枝节的多样化， 通过更改分支线 的两个支线的长度、 宽度、 分支点的位置等， 可以改变两段带线的阻抗， 从而 改变两段带线的功率比和功率带宽， 容易实现各个输出端口的功率分配， 功分 平坦度高； 此外， 更改分支线的两个支线的长度、 宽度、 分支点的位置等， 还 可以改变两段带线的驻波， 容易实现驻波匹配， 增大带宽。 参见图 7 , 是本发明实施例六提供的移相器的结构示意图。
与上述的实施例五相比， 本实施例六的不同点在于： 第二耦合线 22与第二 带线 12的电耦合方式， 采用上述实施四的双层带线电耦合方式。 参见图 8 , 是本发明实施例七提供的移相器的结构示意图。
与上述的实施例五相比，本实施例七的不同点在于：分支线 31为单边结构， 包括一个支线； 所述支线从第一耦合线 21上的分支点 41 引出， 连接到第二耦 合线 22的臂杆上。 所述支线与第一耦合线 21呈上下分布， 该支线可位于第一 耦合线 21的上方或下方。
与上述的实施例五相比， 本实施例七改变了分支线的支线个数， 从而改变 两段带线的阻抗， 以此调整两段带线的功分比和驻波。 参见图 9, 是本发明实施例八提供的移相器的结构示意图。
与上述的实施例七相比， 本实施例八的不同点在于： 第一耦合线 21与第一 带线 11的电耦合方式， 以及第二耦合线 22与第二带线 12的电耦合方式， 均采 用上述实施二的单边耦合方式。 参见图 10, 是本发明实施例九提供的移相器的结构示意图。
与上述的实施例五相比， 本实施例九的不同点在于： 第一耦合线 21上设有 两个不同的分支点， 分别为分支点 41和分支点 42。 分支线 31为双边结构， 包 括支线 301和支线 302。 支线 301从分支点 41引出， 连接到第二耦合线 22的臂 杆上； 支线 302从分支点 42引出， 连接到第二耦合线 22的臂杆上； 支线 301 和支线 302分别位于第一耦合线 21的上方和下方， 呈上下分布。 而且， 第二耦 合线 22与第二带线 12的电耦合方式， 采用上述实施四的双层带线电耦合方式。
与上述的实施例五相比， 本实施例七改变了分支线的分支点位置， 从而改 变两段带线的阻抗， 以此调整两段带线的功分比和驻波。 参见图 11 , 是本发明实施例十提供的移相器的结构示意图。
与上述的实施例九相比， 本实施例十的不同点在于： 在第二带线 12外围设 置有介质 50。
具体实施时， 移相器还包括腔体 5 , 旋转臂和带线设置在腔体 5内。 在带线 外围设置有介质， 该介质填充在带线与腔体之间。
本实施例提供的移相器， 通过在带线上增加介质来改变带线的环境， 增大 介电常数， 从而缩小带线的大小也能满足移相量的要求。 参见图 12, 是本发明实施例十一提供的移相器的结构示意图。
与上述的实施例五相比， 本实施例十一的不同点在于： 第二耦合线 22仅包 耦合部件， 该耦合部件为双边耦合结构。 第一分支线 31包括两个支线， 两个支 线均从分支点 41引出， 并分别连接到第二耦合线 22上。 参见图 13 , 是本发明实施例十二提供的移相器的结构示意图。
与上述的实施例十一相比， 本实施例十二的不同点在于： 第一分支线 31的 两个支线均从分支点 41引出， 分别跨过第一耦合线 21的上方和下方， 并汇合； 第二耦合线 22连接在两个支线的汇合点上。 参见图 14, 是本发明实施例十三提供的移相器的结构示意图。
与上述的实施例五相比， 本实施例十三的不同点在于： 移相器还包括圆弧 状的第三带线 13; 第三带线 13的圆心位于所述旋转轴线上。 即第一带线 11、 第二带线 12和第三带线 13同轴设置。 第三带线 13的半径大于第二带线 12的 半径， 且第一带线 11、 第二带线 12位于第三带线 13的圆弧以内。 具体的， 如 图 14所示， 以穿过旋转点 O的轴线 MN为分界线， 第一带线 11、 第二带线 12 和第三带线 13位于同一侧。
如图 15所示， 是图 14所示的移相器沿 B-B方向的截面图。 旋转臂 2还包 括第二分支线 32和第三耦合线 23。第一分支线 31与第二耦合线 22的连接点为 分支点 43 , 第二分支线 32从分支点 43引出， 跨过第二带线 12, 延伸至第三耦 合线 23 , 与第三耦合线 23连接； 第三耦合线 23与第三带线 13电耦合， 采用上 述实施一的双边电 合方式。
在另一个实施方式中， 还可以在邻近第一分支线 31与第二耦合线 22的连 接点处， 设置分支点， 第二分支线 32从所述分支点引出， 跨过第二带线 12, 延 伸至第三耦合线 23 , 与第三耦合线 23的连接。
如图 14所示， 第三带线 13的两个端头分别设有输出端口 P5、 P6。 具体实 施时， 输出端口 P5、 P6分别通过馈电导线与天线单元连接。 实施例十三提供的 移相器具有六个输出端口， 旋转臂 2绕旋转点 0旋转， 能够改变从馈电输入端 到输出端口 Pl、 P2、 P3、 P4、 P5、 P6的相位。
本实施例提供的移相器， 第一分支线 31和第二分支线 32增加了匹配枝节 的多样化， 通过更改两个分支线的支线长度、 宽度、 分支点的位置等， 可以改 变三段带线的阻抗， 从而改变三段带线的功率比和功率带宽， 容易实现六个输 出端口的功率分配， 功分平坦度高； 此外， 通过更改两个分支线的支线长度、 宽度、 分支点的位置等， 还可以改变三段带线的驻波， 容易实现驻波匹配， 增 大带宽。
具体实施时， 还可以根据实际需要， 按照上述实施例十三的增加第三带线 的方式， 依次增加第四带线、 第五带线 第 N带线。 参见图 16, 是本发明实施例十四提供的移相器的结构示意图。
与上述的实施例五相比， 本实施例十四的不同点在于： 移相器还包括圆弧 状的第三带线 13; 第三带线 13的圆心位于所述旋转轴线上， 即第一带线 11、 第二带线 12和第三带线 13同轴设置。
如图 16所示， 旋转点 0位于旋转臂 2的中间部位。 以该旋转点 0为分界 点， 耦合线沿两端延伸。 即第一带线 11和第二带线 12同处于分界线 MN的一 侧， 而第三带线 13位于分界线 MN的另一侧。 如图 17所示， 是图 16所示的移相器沿 C-C方向的截面图。 旋转臂 2还包 括第三耦合线 23 , 第三耦合线 23沿着与所述第一耦合线 21相反的方向， 从旋 转点 0引出； 第三耦合线 23的臂杆与第一耦合线 21的臂杆相交于旋转点 0; 第三耦合线 23与第三带线 13采用双边电耦合方式。
需要说明的是， 实施例十四仅以第三耦合线 23从旋转点引出， 并且与第一 耦合线 21构成 180度角为例进行说明。 具体实施时， 第三耦合线 23与第一耦 合线 21之间的角度可以为 90~180。
如图 16所示， 第三带线 13的两个端头分别设有输出端口 P5、 P6。 具体实 施时， 输出端口 P5、 P6分别通过馈电导线与天线单元连接。 实施例十四提供的 移相器具有六个输出端口， 旋转臂 2绕旋转点 0旋转， 能够改变从馈电输入端 到输出端口 Pl、 P2、 P3、 P4、 P5、 P6的相位。 参见图 18, 是本发明实施例十五提供的移相器的结构示意图。
与上述的实施例十四相比， 本实施例十五的不同点在于： 移相器还包括圆 弧状的第四带线 14; 第四带线 14的圆心位于所述旋转轴线上， 即第一带线 11、 第二带线 12、 第三带线 13、 第四带线同轴设置。
如图 18所示， 旋转点 0位于旋转臂 2的中间部位。 以该旋转点 0为分界 点， 耦合线沿两端延伸。 第四带线 14的半径大于第三带线 13的半径， 第三带 线 13位于第四带线 14的圆弧以内， 即第一带线 11和第二带线 12同处于分界 线 MN的一侧， 而第三带线 13和第四带线 14同处于分界线 MN的另一侧。
如图 19所示， 是图 18所示的移相器沿 D-D方向的截面图。 旋转臂 2还包 括第三分支线 33和第四耦合线 14; 第三耦合线 23的臂杆上设有分支点 44; 第 三分支线 33从所述分支点 44引出， 跨过第三带线 13 , 延伸至第四耦合线 24, 与第四耦合线 24连接； 第四耦合线 24与第四带线 14电耦合， 采用上述实施一 的双边电耦合方式。
如图 18所示， 第四带线 14的两个端头分别设有输出端口 P7、 P8。 具体实 施时， 输出端口 P7、 P8分别通过馈电导线与天线单元连接。 实施例十五提供的 移相器具有八个输出端口， 旋转臂 2绕旋转点 0旋转， 能够改变从馈电输入端 到输出端口 Pl、 P2、 P3、 P4、 P5、 P6、 P7、 P8的相位。
本实施例提供的移相器， 第一分支线 31和第三分支线 33增加了匹配枝节 的多样化， 通过更改两个分支线的支线长度、 宽度、 分支点的位置等， 可以改 变四段带线的阻抗， 从而改变四段带线的功率比和功率带宽， 容易实现八个输 出端口的功率分配， 功分平坦度高； 此外， 通过更改两个分支线的支线长度、 宽度、 分支点的位置等， 还可以改变四段带线的驻波， 容易实现驻波匹配， 增 大带宽。 本发明实施例提供的移相器， 各个带线可以处于同一平面上， 例如， 上述 实施例五〜十五提供的移相器， 各个带线同心设置， 处于同一平面上。 此外， 移相器的各个带线还可以处于不同的平面上。
参见图 20, 是本发明实施例十六提供的移相器的结构示意图， 第一带线 11 和第二带线 12上下分布， 两个带线分别处于不同的平面上。 参见图 21 , 是本发明实施例十七提供的移相器的结构示意图。
本发明实施例提供的移相器， 其带线可以是圆弧形、 锯齿形或者波浪形的 曲线结构。 例如， 如图 21所示， 第一带线 11为圆弧结构， 第二带线 12和第三 带线 13为锯齿曲线结构。
由于折线 （锯齿线或波浪线） 可以增加带线的物理路径， 相当于大圆弧的 带线， 本实施例通过更改带线的结构及分布方式， 能够缩小移相器的尺寸。 本发明实施例提供的移相器， 具有以下有益效果：
(一）容易实现功率分配， 功分平坦度高。
各带线对应的耦合线通过分支线实现连接， 该分支线增加了匹配枝节的多 样化， 可以通过更改分支线的个数、 长度、 宽度、 分支位置等， 来改变各段带 线的功率比和功率带宽， 容易实现各个输出端口的功率分配， 功分平坦度高。 此外， 还可以通过改变耦合线与带线的电耦合方式， 改变各段带线的功率比。
(二）容易实现驻波匹配， 增大带宽。
各带线对应的耦合线通过分支线实现连接， 该分支线增加了匹配枝节的多 样化， 可以通过更改分支线的个数、 长度、 宽度、 分支位置等， 改变各带线的 驻波， 容易实现驻波匹配， 增大带宽。 此外， 还可以通过改变耦合线与带线的 电耦合方式， 改变各段带线的驻波。 (三） 能够缩小移相器的尺寸。
通过在带线上增加介质来改变带线的环境， 增大介电常数， 从而缩小带线 的大小也能满足移相量的要求。 而且， 带线采用锯齿曲线结构， 能够缩小移相 器的尺寸。
以上所述是本发明的优选实施方式， 应当指出， 对于本技术领域的普通技 术人员来说， 在不脱离本发明原理的前提下， 还可以做出若干改进和润饰， 这 些改进和润饰也视为本发明的保护范围。

Claims

权 利 要 求
1、 一种移相器， 其特征在于， 包括旋转臂和至少两个悬置的带线； 所述旋 转臂能够绕一旋转点旋转；
所述旋转臂包括多个耦合线和至少一个分支线； 每个耦合线对应地与一个 带线电耦合； 其中至少一个耦合线从所述旋转点引出， 且所述耦合线上设有分 支点； 所述分支线从所述分支点引出， 延伸至下一级的耦合线， 与下一级的耦 合线相连接； 分支线相对于耦合线上下分布。
2、 如权利要求 1所述的移相器， 其特征在于， 所述分支线为单边结构， 包 括一个支线， 所述支线从所述耦合线上的一个分支点引出， 且所述支线位于所 述耦合线的上方或下方；
或者， 所述分支线为双边结构， 包括两个支线； 两个支线分别从所述耦合 线上的两个分支点引出， 或者从所述耦合线上的同一个分支点引出； 两个支线 分别位于所述耦合线的上方和下方。
3、 如权利要求 2所述的移相器， 其特征在于， 所述耦合线包括耦合部件和 臂杆； 所述耦合部件是与带线电耦合的部件， 所述臂杆与所述耦合部件连接； 所述分支点设在耦合线的臂杆上；
或者， 所述耦合线包括耦合部件； 所述分支点设在耦合部件上。
4、 如权利要求 3所述的移相器， 其特征在于， 所述带线为单层带线； 与所述带线电耦合的耦合部件为双边耦合部件， 所述带线夹置在所述双边 耦合部件中间；
或者， 与所述带线电耦合的耦合部件为单边耦合部件， 所述带线位于所述 单边耦合部件的上方或下方。
5、 如权利要求 3所述的移相器， 其特征在于， 所述带线为双层带线， 包括 上层带线和下层带线；
与所述带线电耦合的耦合部件为单边耦合部件， 所述单边耦合部件夹置在 所述上层带线和所述下层带线之间。
6、 如权利要求 4或 5所述的移相器， 其特征在于， 所述移相器包括两个圆 弧状的带线， 分别为第一带线和第二带线；
所述第一带线、 第二带线的圆心与所述旋转点位于同一旋转轴线上， 所述 旋转轴线垂直于所述第一带线、 第二带线；
所述第一带线的半径小于所述第二带线的半径， 且所述第一带线位于所述 第二带线的圆弧以内。
7、如权利要求 6所述的移相器， 其特征在于， 所述旋转臂包括第一耦合线、 第二耦合线和第一分支线；
所述第一耦合线从所述旋转点引出， 与所述第一带线电耦合； 且所述第一 耦合线上设有分支点；
所述第一分支线从所述分支点引出， 跨过所述第一带线， 延伸至所述第二 耦合线， 与所述第二耦合线连接； 所述第二耦合线与所述第二带线电耦合。
8、 如权利要求 7所述的移相器， 其特征在于， 所述移相器还包括圆弧状的 第三带线； 所述第三带线的圆心位于所述旋转轴线上。
9、 如权利要求 8所述的移相器， 其特征在于， 所述第三带线的半径大于所 述第二带线的半径； 所述第一带线、 第二带线位于所述第三带线的圆弧以内； 所述旋转臂还包括第二分支线和第三耦合线； 所述第三耦合线与所述第三 带线电 合；
以所述第一分支线与所述第二耦合线的连接点为分支点， 所述第二分支线 从所述分支点引出， 跨过所述第二带线， 延伸至所述第三耦合线， 与所述第三 耦合线连接；
或者， 在邻近所述第一分支线与所述第二耦合线的连接点处， 设置分支点， 所述第二分支线从所述分支点引出， 跨过所述第二带线， 延伸至所述第三耦合 线， 与所述第三耦合线的连接。
10、 如权利要求 8所述的移相器， 其特征在于 所述旋转臂还包括第三耦 合线； 所述第三耦合线从所述旋转点引出， 且所述: 三耦合线与所述第一耦合 线之间的角度为 90~180； 所述第三耦合线与所述第. 带线电 合。
11、 如权利要求 10所述的移相器， 其特征在于， 所述移相器还包括圆弧状 的第四带线； 所述第四带线的圆心位于所述旋转轴线上； 所述第四带线的半径 大于所述第三带线的半径， 所述第三带线位于所述第四带线的圆弧以内；
所述旋转臂还包括第三分支线和第四耦合线；
所述第三耦合线设有分支点； 所述第三分支线从所述分支点引出， 跨过所 述第三带线， 延伸至所述第四耦合线， 与所述第四耦合线连接； 所述第四耦合 线与所述第四带线电耦合。
12、 如权利要求 1 ~ 5任一项所述的移相器， 其特征在于， 所述带线是圆弧 形、 锯齿形或者波浪形的曲线结构。
13、 如权利要求 1 ~ 5任一项所述的移相器， 其特征在于， 所述移相器还包 括腔体， 所述旋转臂和所述带线设置在所述腔体内；
所述带线外围设置有介质， 该介质填充在所述带线与所述腔体之间。
PCT/CN2011/077327 2011-07-19 2011-07-19 一种移相器 WO2012106903A1 (zh)

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