KR20120130362A - Phaseshifter Having Ground Planes Facing Each Other - Google Patents

Abstract

PURPOSE: A phase shifter having ground planes facing each other is provided to improve the property of electric wave separation due to coupling and loss by laminating a dielectric substrate on the ground plane facing each other. CONSTITUTION: A first arm is extended to the outside direction from a first central axis. A first substrate(120) is installed on top of the first arm. The first substrate has a first ground plane(150) formed on the top surface. The first substrate comprises first and second lines formed on the lower surface and a first input line. A second central axis is installed to accord with the shaft extended in the longitudinal direction of the first central axis. A second substrate(220) comprises fourth and fifth lines formed on the top surface, and a second input line. A second arm(230) is extended to the outside direction from the second central axis. A drive material rotates the above first and second arms.

Description

Phaseshifter Having Ground Planes Facing Each Other}

The present invention relates to a phase shifter, and more particularly, to improve a method of stacking a dielectric substrate to improve separation characteristics and losses of radio waves, and to reduce phase degradation occurring in a stacked structure. It is about.

The phase changer is a device that changes the phase of the RF signal transmitted to the radiating elements, and adjusts the beam tilt and directs the beam direction of the antenna to a desired place. In general, a phase changer uses a method of changing the physical length of a transmission line through which a signal passes in order to change a phase.

Conventional phase changers form a rotating shaft on a dielectric substrate and allow the conductor lines to rotate by inserting arm portions formed on one side thereof. The conductor line of the arm part contacts two lines of different lengths, couples the electrical signals received from the input line, and branches them into two signals. Rotation of the dark portion changes the phase, which matches the physical length of the dark portion to λ / 4 of the frequency. The branched signal is output to the radiating element through the region of the dielectric substrate or proceeds to the dielectric substrate region located under the arm of the dielectric substrate. It is also coupled at the end of each line and transmitted to the radiation element.

Conventional phase changers use a method of sequentially stacking a dielectric substrate having such a structure. However, in this stacking method, the separation characteristics of radio waves are deteriorated by the coupling generated in the upper and lower substrates, thereby causing a loss in RF signal transmission.

In addition, since the dielectric substrate is stacked and the dark portions provided between the layers rotate, deterioration occurs and a problem occurs in the durability of the phase changer.

Therefore, in order to improve the separation of radio waves, reduce losses, and reduce deterioration, increasing the distance between the upper and lower substrates causes a design problem that increases the volume of the phase changer and causes structural problems to support the upper and lower substrates.

Therefore, in order to solve the above problems, an object of the present invention is to improve the structure of the phase changer to improve the separation of radio waves and to reduce losses, and to provide a phase with an opposite ground plane that reduces the deterioration occurring in the laminated structure. To provide a toilet.

In addition, another object of the present invention is to provide a phase shifter having an opposite ground plane that can reduce the volume of the phase shifter by improving the structure of the phase shifter.

In order to achieve the above object, the present invention is arranged to face the ground plane formed on the dielectric substrate, thereby reducing the effect of the coupling to improve the separation characteristics and loss of the radio wave phase phase shifter having an opposite ground plane to provide.

The phase shifter having an opposing ground plane according to the present invention includes a first central axis, a first arm part, a first substrate, a second center axis, a second arm part, a second substrate, and a driving member. The first central axis forms a hole penetrating the first substrate and the first arm portion to form a rotation axis of the first arm portion. The first arm part is inserted into the first central axis and extends in length outwardly from the first central axis. The first substrate is installed on the upper portion of the first arm portion, and is fixed to the first central shaft, the first line and the second line and the first input line on the lower surface having a first ground plane on the upper surface Is formed. The second central axis is spaced apart from the upper portion of the first substrate, and is installed to coincide with the axis extending in the longitudinal direction of the first central axis. The second substrate is installed on an upper portion of the first substrate and fixedly inserted into the second central axis to form a fourth line, a fifth line, and a second input line on an upper surface thereof, and a second ground plane on a lower surface thereof. Has The second arm portion is inserted into the second central axis and extends outward from the second central axis. The driving member rotates the first arm and the second arm.

In addition, the first substrate may include the first line, the second line, the first hole, and the first input line. The first line is formed of an arc-shaped conductor. The second line is formed at a position opposite to the first line and the first central axis, and has an arc shape having a diameter smaller than that of the first line. The first input line receives an electrical signal from the outside at the end of the first substrate.

In addition, the first arm may be formed of a conductor on an upper surface, and both ends thereof may include a third line contacting the first line and the second line.

In addition, the second substrate may include the fourth line, the fifth line, the second hole, and the second input line. The fourth line is formed of an arc-shaped conductor. The fifth line is formed at a position opposite to the fourth line and the second central axis, and has an arc shape having a diameter smaller than that of the fourth line. The second hole is formed in a hole through which the second central axis penetrates and is electrically connected to a lower second ground surface of the second substrate. The second input line receives an electrical signal from the outside at the end of the second substrate.

In addition, the second arm part may include a sixth line made of a conductor on a lower surface thereof, and both ends of the second arm contacting the fourth line and the fifth line.

In addition, the drive member is an adjustment unit for linear movement in the form of a long rod, the control unit and the first arm portion, and the second arm portion, and converts the linear movement of the control portion into a rotational movement and the first arm portion and It may include a rotating member for rotating the second arm.

The rotating member may further include a first connecting portion connecting the first arm portion, the first line longitudinal end portion, and the second arm portion to the fourth line longitudinal end portion, and the first arm portion having the second line longitudinal end portion. And a second connection part connecting and fixing the second end of the second line in the longitudinal direction of the second arm, a support part engaging with the end of the control part, and a fixing part connecting the support part and the second connection part.

In addition, the fixing part may include a fixing plate fixedly coupled to the lower surface of the first arm part and a rotating shaft inserted into a hole penetrating the support part and the second connection part in an upright position to the fixing plate.

In addition, the support portion is formed in connection with the control coupling portion and the control coupling portion coupled to the end of the control portion, a hole in which the rotating shaft of the fixed portion is inserted from the bottom is formed, the rotatable support portion can be fastened to the second connection portion It may include.

In addition, the first line, the second line, the fourth line or the fifth line may have a branched form.

In addition, the support plate may be in the form of a plate on which the first substrate or the second substrate is installed, and may further include a fastening member for fastening the support plate and the first substrate or the second substrate.

In addition, a plurality of stand holes are formed on both sides of the first substrate, and a plurality of stand bolt holes are formed on both sides of the second substrate. The fastening member includes a plurality of first stands, a plurality of second stands, a plurality of first stand bolts, and a plurality of second stand bolts. The plurality of first stands may be inserted into the stand holes of the first substrate in the form of a tube that is coupled to the support plate and stands upright to support the second substrate. A plurality of second stands may be coupled to the support plate and support the first substrate in the form of an upright tube. The first stand bolt may be inserted into the first stand to fasten the second substrate. The second stand bolt may be inserted into the second stand to fasten the first substrate.

In addition, the phase shifter having an opposing ground plane according to the present invention comprises a central axis, a first arm portion, a substrate, a second arm portion and a drive member. The central axis forms a hole penetrating the substrate to form rotation axes of the first arm portion and the second arm portion. The first arm is inserted into the central axis and extends in length outward from the central axis. The substrate has an upper surface and a lower surface, and has a ground surface at a central portion thereof, the first arm portion is installed on the lower surface, the central axis is inserted and fixed through the upper surface and the lower surface, and the lower surface is provided. The first line, the second line, and the first input line are formed on the surface, and the fourth line, the fifth line, and the second input line are formed on the upper surface. The second arm portion is disposed on an upper surface of the substrate and is inserted into the central axis and extends in length outward from the central axis.

According to the present invention, the phase changer is improved by stacking the dielectric substrate so as to face the ground plane, thereby improving the separation characteristic and the loss of propagation by coupling.

In addition, by stacking to face the ground plane, it is possible to block the deterioration phenomenon from the laminated structure to improve the durability of the phase changer.

In addition, by laminating the ground planes facing each other, constraints on the distance between the stacks of the dielectric substrates are alleviated, so that a small phase changer can be manufactured.

1 is a perspective view of a phase shifter having an opposing ground plane according to a first embodiment of the present invention.
2 is an exploded view of Fig.
3 is a plan view seen from below of FIG. 1.
4A is a cross-sectional view illustrating a structure of a phase shifter having opposite ground planes taken along the line II ′ of FIG. 1.
4B is a cross-sectional view illustrating a structure of a phase shifter having an opposing ground plane according to a sixth embodiment of the present invention as shown in FIG. 4A.
5 is a front view showing a phase shifter having an opposite ground plane according to a second embodiment of the present invention.
6A is a front view illustrating a phase shifter having an opposing ground plane according to a third embodiment of the present invention.
6B is a front view illustrating a phase shifter having an opposing ground plane according to a fourth embodiment of the present invention.
7 is a front view illustrating a phase shifter having an opposing ground plane according to a fifth embodiment of the present invention.
FIG. 8 is a cross-sectional view illustrating the fastening member taken along the line II-II ′ of FIG. 7.
FIG. 9 is a graph illustrating loss characteristics of a first substrate of a phase changer having an opposing ground plane according to a first embodiment of the present invention.
FIG. 10 is a graph illustrating loss characteristics of a second substrate of a phase changer having an opposing ground plane according to the first embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the embodiments of the present invention will be described, and the description of other parts will be omitted so as not to obscure the gist of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be variations and examples.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving the above object will be described in detail.

1 is a perspective view of a phase shifter 100 having an opposite ground plane according to a first embodiment of the present invention. 2 is an exploded view of FIG. 1. 3 is a plan view seen from below of FIG. 1. 4A is a cross-sectional view of FIG. 1.

1 to 4A, the phase shifter 100 having an opposing ground plane according to the first embodiment of the present invention may include a first central axis 110, a first arm part 130, and a first substrate ( 120, a second central shaft 210, a second substrate 220, a second arm 230, and a driving member 300. The first central shaft 110 forms a hole penetrating through the first substrate 120 and the first arm portion 130 to form a rotation shaft of the first arm portion 130. The first arm portion 130 is inserted into the first central axis 110 and extends outward from the first central axis 110. The first substrate 120 is installed on the upper portion of the first arm portion 130, and is inserted and fixed to the first central shaft 110, and has a ground plane on the upper surface and the first line 121 and the second on the lower surface. The line 122 and the first input line 140 are formed. The second center shaft 210 is positioned at an upper portion of the first substrate 120 at intervals, and is installed to coincide with an axis extending in the longitudinal direction of the first center shaft 110. The second substrate 220 is installed on the upper portion of the first substrate 120 and inserted into the second central shaft 210, and is fixed to the fourth surface 221 and the fifth line 222 and the second input on the upper surface. The line 240 is formed and has a ground plane on the bottom surface. The second arm part 230 is inserted into the second central axis 210 and extends outwardly from the second central axis 210. And a driving member 300 for rotating the first arm 130 and the second arm 230.

Each configuration of the phase changer 100 having an opposite ground plane according to the first embodiment of the present invention will be described in detail as follows.

The first central shaft 110 is inserted to form a hole penetrating the first arm 130 and the first substrate 120 to serve as a rotation axis of the first arm 130. The length of the first central shaft 110 is a length through which the first arm 130 and the first substrate 120 are slightly protruded to be fastened to the first arm 130 and the first substrate 120. The end of the first central shaft 110 may be processed into a bolt shape and fastened with a nut 402, but is not limited thereto.

The first arm 130 is inserted into the first central shaft 110 and has a rod shape extending in an outward direction from the first central shaft 110. The first arm 130 is a dielectric substrate, and a third line 131 formed of a conductor is printed on the upper surface of the first arm 130, and both ends of the third line 131 are printed on the first substrate 120. The first line 121 and the second line 122 in contact with. The electrical signal transmitted from the first input line 140 is coupled on the first central axis 110, and then branches and rotates in the direction of the first line 121 and the second line 122 to rotate the first line ( 121 and phases are changed by changing the physical lengths of the second line 122.

The first substrate 120 is a dielectric substrate having a first ground plane 150 on an upper surface thereof, and a first line 121, a second line 122, and a first input line 140 formed on a lower surface thereof. A hole is formed in the center of the first substrate 120 so that the first central shaft 110 can pass therethrough, and the first substrate 120 is inserted into and fixed to the first central shaft 110. The first line 121 is formed of an arc-shaped conductor, and a second line 122 having a diameter smaller than that of the first line 121 is formed at a position opposite to the first central axis 110.

On the other hand, the first ground plane 150 is formed on the upper surface of the first substrate 120, the second substrate 220 is laminated on the upper portion of the first substrate 120 at a predetermined interval and the second substrate ( The second ground plane 250 is formed on the lower surface of the 220 so that the first ground plane 150 of the first substrate 120 and the second ground plane 250 of the second substrate 220 face each other. Form a structure.

In addition, the first and second substrates 120 and 220 have a symmetrical upper and lower configuration with respect to the first ground plane 150 and the second ground plane 250 facing each other. The second central shaft 210, the second arm 230, and the second substrate 220 will be described with reference to 110, the first arm 130, and the first substrate 120.

The second central axis 210 is positioned at a predetermined interval on the upper portion of the first central axis 110 and is installed to coincide with the axis extending in the longitudinal direction of the first central axis 110. Like the first central shaft 110, the length of the shaft penetrates through the second arm 230 and the second substrate 220 and slightly protrudes to form a hole, and can be formed to fasten at both ends. have.

The second substrate 220 is a dielectric substrate having a second ground plane 250 on a lower surface thereof, and a fourth line 221, a fifth line 222, and a second input line 240 are formed on the upper surface thereof. A hole is formed in the center of the second substrate 220 so that the second central shaft 210 can penetrate, and the second substrate 220 is inserted into and fixed to the second central shaft 210. The fourth line 221 is formed of an arc-shaped conductor, and a fifth line 222 having an arc shape having a diameter smaller than that of the fourth line 221 is formed at a position opposite to the second central axis 210.

The second arm part 230 is inserted into the second central axis 210 and has a rod shape extending in an outward direction from the second central axis 210. The second arm part 230 is a dielectric substrate, and a sixth line 231 formed of a conductor is printed on the lower surface of the second arm part 230, and both ends of the sixth line 231 are second substrate 220. Contact with the fourth line 221 and the fifth line 222. The electrical signal whose phase is changed by the first arm 130 and the first substrate 120 is received through the fourth line 221 and the fifth line 222 and coupled at the second central axis 210. Thereafter, it is transmitted to the second input line 240.

5 to 6B, the first line 121 of the first substrate 120, the second line 122, or the fourth line 221 of the second substrate 220, and the fifth line of the second substrate 220. The track 222 may have a branched shape. In the phase shifter 100 having an opposing ground plane according to the first embodiment of the present invention, the first line 121, the second line 122, or the second substrate 220 of the first substrate 120 are provided. The fourth line 221 and the fifth line 222 are single conductor wires each having a resistance, but according to another exemplary embodiment 600, 700, and 710 of the present invention, the first line 121 of the first substrate 120 is provided. ), The second line 122 or the fourth line 221 and the fifth line 222 of the second substrate 220 each have two branched conductors with resistances. However, it is not limited to the number of conductors and the resistance value. Further, according to the third embodiment 700 or the fourth embodiment 710 of the present invention shown in Figs. 6A to 6B, the parasitic elements 721 and 722 are parallel to the lines 121, 122, 221 and 222. May be further attached. The parasitic elements 721 and 722 are conductors formed by repeating curved shapes or curvatures such as arcs, and may extend frequency bands of electric signals flowing along the lines 121, 122, 221, and 222.

On the other hand, in order to change the phase, the first arm 130 and the second arm 230 need to rotate, for this purpose, the driving member 300 is provided.

The driving member 300 includes an adjusting part 310 and a rotating member 320, and the adjusting part 310 is applied with a physical force from the outside to change the phase. The rotating member 320 controls the movement of the adjusting unit 310 through the adjusting unit 310, the first arm unit 130, and the second arm unit 230 of the first arm unit 130 and the second arm unit 230. Convert to rotary motion.

The adjusting unit 310 is a long rod-like linear movement capable of moving forward and backward in the longitudinal direction of the bar. Terminals connected from the outside may be linearly moved by a threaded and rotating motor, roller, or handle. Alternatively, linear motion can be performed by the motor and the crankshaft. However, the adjusting unit 310 does not limit the structure or method of linear movement. On the other hand, the end of the control unit 310 is connected to the rotating member 320 is formed to be coupled to the support 330 of the rotating member 320.

The rotating member 320 mediates the adjusting part 310, the first arm part 130, and the second arm part 230. The rotating member 320 includes a first connection part 321, a second connection part 322, a support part 330, and a fixing part 340.

The first connector 321 connects the lengthwise end of the first line 121 of the first arm 130 and the lengthwise end of the fourth line 221 of the second arm 230.

The second connector 322 connects the lengthwise end of the second line 122 of the first arm 130 and the lengthwise end of the fifth line 222 of the second arm 230.

Since the first connector 321 and the second connector 322 are provided to rotate together by connecting the first arm 130 and the second arm 230, the first connector 321 and the second connector 322. The thickness of corresponds to the interlayer spacing.

The support part 330 is connected to the control coupling part 331 and the control coupling part 331 to be coupled to the end of the control part 310, the hole in which the rotating shaft 342 of the fixing part 340 is inserted from the bottom Is formed, and includes a rotatable support portion 332 that can be coupled to the second connection portion 322.

The control coupling portion 331 is processed to correspond to the end shape of the control unit 310 to engage with the end of the control unit 310. Phase shifter 100 having an opposite ground plane according to an embodiment of the present invention is the end of the control unit 310 is a rectangular shape and forms a hole, the control coupling portion 331 is the end of the control unit 310 It is processed in the form of wrapping and making a hole, so that the holes are matched with each other, through the coupling of the bolt 401 and the nut 402 can be fastened to the adjustment engaging portion 331 and the adjusting portion 310.

Rotating support 332 is a rectangular ring shape connected vertically on one side of the adjustable coupling portion 331. The diameter of the inner ring corresponds to the diameter of the rotating shaft 342 so that the rotating shaft 342 of the fixing portion 340 can be inserted from the bottom.

The fixing part 340 is a support plate 332 and the second connection part upright in the form of the fixing plate 341 and the fixing plate 341 fixedly coupled to the lower end of the second line 122 direction of the first arm 130. And a rotation shaft 342 inserted into the hole penetrating 322.

On the other hand, the rotary support 332 is processed so that the phase changer 100 having a ground plane facing by the fastening member 400 is fixed to the support plate 500, the support plate 500 is coupled to the fastening member 400 Cut out holes or grooves as much as possible. In addition, the control unit structure having a ring shape to be inserted into the control unit 310, connected to the ring shape and the arrowhead shape formed of the control unit support structure 410 is inserted from the end of the control unit 310 to be adjusted to the support plate 500 Position fixing and linear movement of the part 310 to be fixed in the direction. The support plate 500 corresponds to the position of the control unit support structure 410 so that the arrowhead-shaped control unit support structure 410 is inserted, and processes the hole or groove in the support plate 500.

The fastening member 400 is a bolt for fixing the first substrate 120, the second substrate 220, the adjusting unit 10 and the like of the phase variable converter 100 having a ground plane facing each other, a bolt, It may be configured to include a 401, a nut 402, the adjustment portion support structure 410. The bolt 401 and the nut 402 are used to fasten the first connector 321, the second connector 322, the first central axis 110, or the second central axis 210, but are not limited thereto. no.

In addition, in the fifth embodiment 800 of the present invention, the fastening member 400 further includes a first stand 431, a second stand 432, a first stand bolt 433, and a second stand bolt 434. It is configured to include. 7 to 8, the plurality of stand holes 450 disclosed in the fifth embodiment 800 of the present invention are formed on both sides of the first substrate 120, and the plurality of stand bolt holes 451. ) Are formed on both sides of the second substrate. The plurality of first stands 431 are coupled to the support plate 500 and inserted into the first substrate 120 in an upright tube shape to support the second substrate 220. The plurality of second stands 432 are coupled to the support plate 500 and support the first substrate 120 in an upright tube shape. The first stand 431 and the second stand 432 may be coupled to the support plate 500 by a compression method, and various materials such as aluminum and copper may be used. Positions of the stand hole 450 and the first stand 431 correspond to each other, and positions of the stand bolt 451 and the second stand 432 correspond to each other. The stand hole 450 is processed to allow the first stand 431 to be inserted, and the stand bolt hole 451 is processed to allow the stand bolts 433 and 434 to pass therethrough. In addition, corresponding to the positions of the first stand 431 and the second stand 432, holes on both sides of the first substrate 120 and the second substrate 220 so that the stand bolts 433 and 434 can be assembled. Take out and process. Accordingly, the inner surfaces of the first stand 431 and the second stand 432 form a thread to fasten the first stand bolt 433 and the first stand 431, and the second stand bolt 434 and the first stand 431. 2 stands 432 are fastened.

The coupling method by the stand hole 450, the stand bolt hole 451, the stands 431 and 432, and the stand bolts 433 and 434 has the following advantages over the conventional fastening method.

The conventional coupling method is a coupling method by soldering, and the failure rate is increased because it cannot be re-engaged due to defects in assembling. Defects may occur in the configuration of the phase changer, and defects may occur during solder bonding, but reassembly is impossible after the bonding is performed. However, the coupling method by the stand hole 450, the stand bolt hole 451, the stand 431, 432 and the stand bolts 433 and 434 can be reassembled at any time, so that the defective rate can be lowered, thereby improving the defective rate, Improve workability and ease of repair. The stand holes 450 and the stand bolt holes 451 formed on the substrates 120 and 220 are inserted in accordance with the positions of the stands 431 and 432, and the stand bolts 433 and 434 are inserted into the stands 431 and 432, respectively. Can be tightened. In addition, since there is a stand bolt hole 451, the fastening of the second stand bolt 434 can be freely performed, thereby improving workability and helping to reduce a defective rate.

Meanwhile, referring to FIG. 4B, the phase shifter 900 having the ground plane facing the sixth embodiment according to the present invention includes a central axis 1, a first arm part 130, a substrate 2, and a second arm part. 230 and the driving member 300 is configured. This is the distance between the first ground plane 150 and the second ground plane 250 provided in the phase changer 100 having the opposing ground plane of the first embodiment according to the present invention, as shown in FIG. 4A. To reduce, it is possible to form one ground plane (5). Therefore, by constructing a phase converter 900 having a ground plane facing the single substrate, it is helpful in improving workability, such as cost reduction, productivity improvement and assembly time reduction.

The configuration of the phase changer 900 having the ground plane facing each other according to the sixth embodiment of the present invention will be described below.

The central axis 1 forms a hole penetrating the substrate 2 to form a rotation axis of the first arm 130 and the second arm 230.

The first arm 130 is inserted into the central axis 1 and extends outward from the central axis 1.

The substrate 2 has an upper surface 4 and a lower surface 3, and has a ground surface 5 at a central portion thereof, and a first arm 130 is provided on the lower surface 3, and the upper surface 4 is provided. The central axis 1 is inserted and fixed through the lower surface 3, and the first line 121, the second line 122, and the first input line 140 are formed on the lower surface 3. The fourth line 221, the fifth line 222, and the second input line 240 are formed on the upper surface 4. In this case, the substrate 2 may have a printed circuit board or an air strip structure. The ground plane 5 has a common ground form, and may form at least one through hole as the ground plane 5 on the upper surface 4 and the lower surface 3 of the substrate 2, and the ground plane 5 Electrically connected to the ground can improve grounding capabilities.

The second arm part 230 is disposed on the upper surface 4 of the substrate 2 and is inserted into the central axis 1, and extends outward from the central axis 1.

The driving member 300 is provided to rotate the first arm 130 and the second arm 230.

As described above, the configuration of the phase changer 100 having the opposite ground plane according to the first embodiment of the present invention changes the phase as follows.

First, the adjusting unit 310 linearly moves by a force transmitted from the outside. For example, when the motor and the crank shaft or the cam shaft is provided to rotate the motor by the magnetic pole outside, the adjustment unit 310 can be linearly reciprocated by the movement of the crank shaft. In addition, as shown in Figure 5, referring to the phase changer 100 according to an embodiment of the present invention, the end of the adjusting portion 310 is formed of a screw thread can be linear movement by rotation.

Since the end of the control unit 310 is inserted into the control coupling portion 331 of the support, the control coupling portion 331 also makes a linear motion. In addition, the adjustable coupling portion 331 is connected to the rotary support 332, the rotary support 332 also makes a linear motion. The rotating shaft of the fixing part 340 moves by the ring shape of the rotation supporting part 332, thereby rotating the fixing part 340. Since the fixing part 340 is coupled to the end of the second connection part and the first arm part 130 in the direction of the fifth line 222, the second connection part also rotates, and the second connection part of the first arm part 130 Since the ends and the ends of the second arm 230 are connected, the first arm 130, the second arm 230, and the first connection part may also be connected to the first central axis 110 and the second central axis 210. Will rotate.

As described above, as the first arm 130 and the second arm 230 rotate, the phase transmitted to each of the radiating elements changes due to a change in the physical length of the line. Noise is generated by the leakage signals from the first substrate 120 and the second substrate 220 in the process of transmitting the input signal to the radiation element. Since the first substrate 120 and the second substrate 220 are stacked, the electrical signals are affected by noise between each other.

Therefore, let us look at the loss characteristics of the phase changer having an opposite ground plane according to an embodiment of the present invention.

9 and 10 are graphs showing the loss characteristics of the phase shifter having an opposite ground plane according to the first embodiment of the present invention. FIG. 9 is a graph illustrating loss characteristics of a first substrate of a phase changer having an opposing ground plane according to a first embodiment of the present invention. FIG. 10 is a graph showing a loss characteristic of a second substrate of a phase changer having an opposing ground plane according to the first embodiment of the present invention.

Referring to FIGS. 9 and 10, although there are some differences depending on the frequency and the measurement position, it can be seen that the overall characteristics are similar in the loss characteristics of the first substrate 120 and the second substrate 220. It can be seen that there is no increase in loss due to leakage between each other.

The electrical signal transmitted from the first input line 140 changes phase. The electrical signal is coupled through the conductive line on the dielectric substrate until it exits to the second input line 240. Since the first substrate 120 and the second substrate 220 are stacked, the electrical signal is affected by the coupling. The electrical characteristics of the RF signal are improved by reducing the separation and loss of radio waves by the coupling. Therefore, the degradation of the laminated structure is blocked to improve the durability of the phase changer. In addition, the restriction on the distance between the stacks of dielectric substrates is relaxed, so that a small phase shifter can be manufactured.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

100, 600, 700, 710, 800, 900: phase shifters with opposite ground planes
1: central axis 2: substrate
3: bottom surface of substrate 4: top surface of substrate
5: ground plane 110: first central axis
120: first substrate 121: first line
122: second line 130: first arm portion
131: third line 140: first input line
145: first hole 150: first ground plane
210: second center axis 220: second substrate
221: fourth track 222: fifth track
230: second arm 231: sixth line
240: second input line 245: second hall
250: second ground plane 300: drive member
310: control unit 320: a rotating member
321: first connecting portion 322: second connecting portion
330: support portion 331: adjustable coupling portion
332: rotation support portion 340: fixed portion
341: fixed plate 342: rotation axis
400: fastening member 401: bolt
402: nut 410: adjustment support structure
431: first stand 432: second stand
433: first stand bolt 434: second stand bolt
450: stand hole 451: stand bolt hole
500: support plate 721, 722: parasitic element

Claims (13)

A first central axis;
A first arm part inserted into the first central axis and extending in an outward direction from the first central axis;
A first substrate installed at an upper portion of the first arm and fixed to the first central shaft, the first substrate having a first ground plane on an upper surface thereof, and having a first line, a second line, and a first input line formed on a lower surface thereof;
A second center shaft positioned at an interval on an upper portion of the first substrate and installed to coincide with an axis extending in the longitudinal direction of the first center shaft;
A second substrate installed on an upper portion of the first substrate and fixedly inserted into the second central shaft so that a fourth line, a fifth line, and a second input line are formed on an upper surface thereof and a second ground plane on a lower surface thereof; ;
A second arm part disposed on an upper portion of the second substrate and inserted into the second central axis and extending in an outward direction from the second central axis;
A driving member for rotating the first arm portion and the second arm portion;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method of claim 1,
The first substrate is
The first line formed of an arc-shaped conductor;
The second line formed at an opposite position of the first central axis and having an arc shape having a diameter smaller than that of the first line;
A first input line configured to receive an electrical signal from the outside at the end of the first substrate;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method of claim 1,
The first arm portion
A three line made of a conductor on an upper surface of the first arm and having both ends in contact with the first line and the second line;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method of claim 1,
The second substrate
The fourth line formed of an arc-shaped conductor;
The fifth line formed at an opposite position of the second central axis and having a smaller arc shape than the fourth line;
A second input line transmitting an electric signal to the outside;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method of claim 1,
The second arm portion
A sixth line made of a conductor on a lower surface of the second arm part, and both ends of the sixth line contacting the fourth line and the fifth line;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method of claim 1,
The drive member is
Control unit for linear movement in the form of a long rod;
A rotating member which mediates the adjusting part, the first arm part and the second arm part, and converts the linear motion of the adjusting part into a rotational motion to rotate the first arm part and the second arm part;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method according to claim 6,
The rotating member
A first connecting portion connecting the first end of the first arm in the longitudinal direction and the fourth end of the second arm in the longitudinal direction;
A second connecting portion configured to connect the second end of the first arm in the longitudinal direction and the second end of the second arm in the longitudinal direction;
A support coupled to the distal end of the control unit;
A fixing part connecting the support part and the second connection part;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method according to claim 6,
The fixed portion
A fixed plate fixedly coupled to the lower surface of the first arm;
A rotating shaft inserted into a hole penetrating the support portion and the second connection portion in an upright position to the fixing plate;
Phase shifter having an opposite ground plane, characterized in that it comprises a. 8. The method of claim 7,
The support
A control coupling unit coupled to the end of the control unit;
A rotation support part which is connected to the control coupling part and has a hole into which a rotation shaft of the fixing part is inserted from a lower part, and which can be fastened to the second connection part;
Phase shifter having an opposite ground plane characterized in that it comprises a. The method according to claim 2 or 4,
And the first line, the second line, the fourth line, or the fifth line have a branched shape. The method of claim 1,
A support plate having a plate shape in which the first substrate or the second substrate is installed;
A fastening member for fastening the support plate to the first substrate or the second substrate;
Phase shifter having an opposite ground plane characterized in that it further comprises. 12. The method of claim 11,
A plurality of stand bolt holes are formed on both sides of the first substrate and on both sides of the second substrate.
The fastening member
A plurality of first stands coupled to the support plate and inserted into the stand hole formed in the first substrate and supporting the second substrate in a tubular shape upright with respect to the support plate;
A plurality of second stands coupled to the support plate and supporting the first substrate in the form of a tube standing upright with respect to the support plate;
A plurality of first stand bolts inserted into the first stand to fasten the second substrate;
A plurality of second stand bolts inserted into the second stand to fasten the first substrate;
And a mounting position of the stand hole and the stand bolt hole corresponds to an installation position of the first stand and the second stand, respectively. Central axis;
A first arm inserted in the central axis and extending in an outward direction from the central axis;
It has an upper surface and a lower surface has a ground plane in the central portion, the first arm portion is provided on the lower surface, the central axis is inserted and fixed through the upper surface and the lower surface, and fixed to the lower surface A substrate having a first line, a second line, and a first input line, and having a fourth line, a fifth line, and a second input line formed on the upper surface;
A second arm part disposed on an upper surface of the substrate and inserted into the central axis and extending in an outward direction from the central axis;
A driving member for rotating the first arm portion and the second arm portion;
Phase shifter having an opposite ground plane characterized in that it comprises a.

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