KR100921951B1 - Phase shifter where a roration member is combined with a guide member - Google Patents

Abstract

The present invention relates to a phase shifter in which a rotation member and a guide member are coupled to reduce a loss due to friction. The phase shifter includes a rotating member, a first rotating shaft, a first arm portion, a first guide member and a force transmission member. The first rotating shaft is coupled to the rotating member. The first arm part is connected to the first rotational shaft and extends in a lengthwise direction from the first rotational shaft in an outward direction of the first rotational shaft. The first guide member is connected to the first rotating shaft and the first arm to rotate the first arm according to the rotation of the first rotating shaft. The force transmission member connects at least one of the rotation member and the first rotational shaft with the first guide member. Here, a first line, which is a conductor, is arranged on one side of the first arm part. Since the phase shifter connects the guide member and the rotating member through the force transmission member, when the driving member is rotated in the forward direction and then rotated in the reverse direction, the loss of force due to friction or the like is reduced, so that the rotational force due to the rotation of the rotating member is reduced. It can be delivered well to this dark area.

Phase Shifter, PHASE SHIFTER, Guide, Dielectric Board, Rotating Shaft

Description

PHASE SHIFTER WHERE A RORATION MEMBER IS COMBINED WITH A GUIDE MEMBER}

The present invention relates to a phase shifter, and more particularly, to a phase shifter in which a rotating member and a guide member are coupled to reduce a loss due to friction.

A phase shifter is a device connected to an antenna element to vary a phase of a signal transmitted to the antenna element, and generally has a structure as shown in FIG. 1 below.

1 is a top view illustrating a conventional phase shifter, and FIG. 2 is a view schematically illustrating a bottom surface of the phase shifter of FIG. 1.

Referring to FIG. 1, a conventional phase shifter includes a dielectric substrate 100, a first line 102, a second line 104, an input line 106, an output line 108, a rotation shaft 110, and an arm part. Arm section 112 and guide member 114.

The dielectric substrate 100 is made of a dielectric material having a predetermined dielectric constant, and a ground plate is formed below the dielectric substrate 100.

The first line 102 is formed over the dielectric substrate 100 as a conductor, the ends of which are electrically connected to the first and second radiation elements.

The second line 104 is formed over the dielectric substrate 100 as a conductor, the ends of which are electrically connected to the third and fourth radiation elements.

Input line 106 receives the RF signal as a conductor. The received RF signal is output to the fifth radiation element through the first dielectric substrate region located below the output line 108 of the dielectric substrate 100 or is coupled to the rotary shaft 110 and then coupled to the dielectric substrate. Proceeding to the second dielectric substrate region located below the arm portion 112 of the 100. Here, a third line (not shown) that is a conductor is formed on the lower surface of the arm part 112. The RF signal propagated to the second dielectric substrate region is then coupled between the termination of the third line and the first and second lines 102 and 104 and then transmitted to the corresponding radiating elements.

The output line 108 outputs the RF signal itself to the first radiation element without changing the phase of the RF signal for the beam characteristic of the array antenna composed of the radiation elements as a conductor.

The rotating shaft 110 is coupled to the gear wheel 200 as shown in FIG. 2, and is connected to the arm 112 and the guide member 114 as shown in FIG. 1. Here, the gear wheel 200 rotates in response to the rotation of the gear worm 202, and as a result, the rotational force according to the rotation is transmitted to the arm 112 through the guide member 114. That is, the conventional phase shifter rotates the arm 112 by rotating the gear worm 202 a desired number of times in the forward or reverse direction to change the phase of the signals transmitted to the radiation elements.

Hereinafter, the coupling relationship of the phase shifter will be described in detail.

3 is a cross-sectional view illustrating the phase shifter of FIG. 1.

Referring to FIG. 3, the rotation shaft 110 is coupled to the gear wheel 200 and connected to the arm 112 and the guide member 114 while penetrating through the dielectric substrate 100.

The guide member 114 is connected to the rotation shaft 110 and rotates in response to the rotation of the rotation shaft 110, and includes a guide base member 114A, a side portion 114B, a support portion 114C, and a protrusion 114D.

Guide base member 114A is located on the upper surface of arm portion 112.

The support part 114C extends in the direction of the rotation axis 110 from the side part 114B, is located below the dielectric substrate 100, and is supported by the dielectric substrate 100.

The protrusion 114D protrudes from the guide base member 114A and is inserted into a portion of the arm 112 as shown in FIG. 3. As a result, the arm 112 is fixed to the guide member 114, and thus rotates together with the guide member 114 when the rotation shaft 110 rotates.

In short, the conventional phase shifter rotates the gear worm 202 and the gear wheel 200 to rotate the guide member 114 to a desired length in order to control the phase change, and consequently the arm connected to the guide member 114. 112 is rotated by the desired phase difference. However, when the gear worm 202 is rotated in the forward direction and then rotated in the reverse direction again in the phase shifter, the rotational force may occur due to friction between the gear worm 202 and the gear wheel 200 and a loss in the force transmission process. There was a problem that a loss of two or more revolutions occurred until it was delivered to the arm 112.

It is an object of the present invention to provide a phase shifter for connecting the rotating member and the guide member through the force transmission member so that the loss of force transmitted to the arm portion is reduced.

In order to achieve the object as described above, the phase shifter according to an embodiment of the present invention includes a rotation member, a first rotation axis, a first arm, a first guide member and a force transmission member. The first rotating shaft is coupled to the rotating member. The first arm part is connected to the first rotational shaft and extends in a lengthwise direction from the first rotational shaft in an outward direction of the first rotational shaft. The first guide member is connected to the first rotating shaft and the first arm to rotate the first arm according to the rotation of the first rotating shaft. The force transmission member connects at least one of the rotation member and the first rotation shaft with the first guide member. Here, a first line, which is a conductor, is arranged on one side of the first arm part.

Since the phase shifter according to the present invention connects the guide member and the rotating member through the force transmission member, the loss of the force due to friction is reduced when the driving member is rotated in the forward direction and then rotated in the reverse direction, thereby rotating the rotating member. There is an advantage that the torque is transmitted to the arm well.

In addition, the phase shifter according to the present invention can be easily coupled and separated by a plurality of sub-phase shifters by implementing the rotation axis in a separate type. Therefore, there is an advantage that the utilization of the phase shifter is increased and the convenience in use can be improved when the phase shifter is used.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a top view illustrating a phase shifter according to a first embodiment of the present invention, and FIG. 5 is a side view of the phase shifter of FIG. 4 according to an embodiment of the present invention. 6 is a diagram schematically illustrating a rear surface of the phase shifter of FIG. 4, and FIG. 7 is a perspective view schematically illustrating a rear surface of the phase shifter of FIG. 6. In addition, FIG. 8 is a cross-sectional view illustrating the phase shifter of FIG. 4 in accordance with an embodiment of the present invention.

4 to 7, the phase shifter according to the present embodiment is a device that is connected to radiation elements (not shown) to change the phase of signals transmitted to the radiation elements, and the dielectric substrate 400. , The first line 402, the second line 404, the input line 406, the output line 408, the rotation axis 410, the arm section 412, the guide member 414, the rotation member 600. ) And force transmission member 602.

The dielectric substrate 400 is made of a dielectric material having a predetermined dielectric constant, and a ground plate is formed below the dielectric substrate 400. According to another exemplary embodiment of the present invention, the ground plate may be formed inside the dielectric substrate 400 without being formed under the dielectric substrate 400.

The first line 402 is formed on the dielectric substrate 400 as a conductor, for example, in a curved shape. Here, terminations of the first line 402 are electrically connected to some of the radiation elements (eg, first and second radiation elements), although not shown.

The second line 404 is formed on the dielectric substrate 400 as a conductor, for example, with a curved shape, the ends of which are electrically connected to some of the radiation elements (eg, third and fourth radiation elements). Connected. According to one embodiment of the present invention, the second line 404 has an arc length that is less than the arc length of the first line 402, so that the second line 404 has a smaller phase change than the first line 402. Causes For example, while the phase of the signal propagated through the dielectric substrate region positioned below the first line 402 changes by 2θ, the signal propagates through the dielectric substrate region positioned below the second line 404. The phase may change by θ.

Although these lines 402 and 404 are not shown as having a specific shape in FIG. 4, the arc portion may have a comb pattern for a larger phase change. However, this pattern is not particularly limited.

Input line 406 receives the RF signal as a conductor. The RF signal received in this way is output to the corresponding radiation element through the first dielectric substrate region positioned below the output line 408 of the dielectric substrate 400 or coupled at the rotating shaft 410 and then the dielectric substrate ( The process proceeds to the second dielectric substrate region located below the third line (not shown) formed under the arm 412 of the 400.

The output line 408 outputs the RF signal itself to the corresponding radiation element without changing the phase of the RF signal for the beam characteristic of the array antenna composed of the radiation elements as a conductor.

That is, the RF signal is output to the first radiating element of the radiating elements through the output line 408 without changing the phase. In addition, the RF signal travels through the second dielectric substrate region positioned below the third line after being coupled at the rotation shaft 410. Here, the signal propagated in the direction of the first line 402 of the signals coupled from the rotary shaft 410 is coupled between one end of the arm portion 412, that is, one end of the third line and the first line 402. Then, it is output to the second radiation element and the third radiation element of the radiation elements through the dielectric substrate region located below the first line 402. In addition, the signal propagated in the direction of the second line 404 of the signal coupled from the rotation axis 410 is coupled between the other end of the arm 412, that is, the other end of the third line and the second line 404, Then, it is output to the fourth radiation element and the fifth radiation element of the radiation elements through the dielectric substrate region positioned below the second line 404. As a result, the array antenna of the radiating elements has a predetermined beam pattern, and the beam pattern is changed in response to the phase change of the phase shifter.

The rotating shaft 410 is connected to the arm 412 and the guide member 414, and rotates according to the operation of the rotating member 600 described later. As a result, the arm 412 rotates in accordance with the rotation of the rotation axis 410 within the phase shift range of the phase shifter, that is, within the arc range of the lines 402 and 404.

A third line, which is a conductor, is formed on the lower surface of the arm portion 412.

The guide member 414 is connected to the rotation shaft 410 and the arm portion 412 to transmit the force according to the rotation of the rotation shaft 410 to the arm portion 412, as a result the arm portion 412 is guided by the transmitted force Rotate with member 414.

This guide member 414 includes a guide base member 414A, a side portion 414B, a support 414C, a guide protrusion 414D, and a side support 414E, as shown in FIG.

Guide base member 414A is coupled to arm portion 412 at the upper surface of arm portion 412, and side portion 414B is positioned to the side of arm portion 412.

The support part 414C extends in the direction of the rotation axis 410 from the side part 414B and is positioned below the dielectric substrate 400 to be supported by the dielectric substrate 400. As a result, since the dielectric substrate 400 supports the guide member 414, the guide member 414 can maintain its current state without shaking.

The side protrusion 441E is positioned at the side of the arm 412 to fix the arm 412, and transmits a force provided through the rotation shaft 410 to the arm 412 to rotate the arm 412.

The guide protrusion 414D extends in the direction of the force transmission member 602 from the support 414C as shown in FIG. 5, and is inserted into the insertion portion 604 of the force transmission member 602 shown in FIG. 6. Is coupled to the force transmission member 602. As a result, the rotational force generated by the rotation of the rotation member 600 is transmitted not only to the arm portion 412 via the rotation shaft 410 and the guide member 414 but also the force transmission member 602 and the guide member 414. It is also transmitted to the arm portion 412 through. Here, the force transmission member 602 is connected to the upper surface of the rotating member 600, for example the gear wheel, as shown in Figure 7, the insertion portion 604 so that the guide protrusion 414D can be inserted Include.

According to an embodiment of the present invention, the rotation shaft 410 is inserted into the rotation shaft insertion portion 608 extending in the longitudinal direction of the rotation shaft 410 as shown in Figure 7, the force transmission member 602 is It is connected to the rotary shaft insert 608 in the upper surface of the rotating member 600.

According to another embodiment of the present invention, the force transmission member 602 may be connected to the rotation shaft 410, not the rotation member 600.

Insertion portion 604 according to an embodiment of the present invention is a recess or hole, as long as the guide protrusion 414D can be combined is not particularly limited in its shape.

The rotating member 600 is an element for rotating the rotating shaft 410, for example, a gear wheel. In this case, the rotating member 600 rotates in response to the rotation of the driving member 606, for example, a gear worm, as shown in FIG. 6. That is, when the user rotates the gear worm 606 in a specific direction by using a motor or the like from the outside, the rotating member 600 rotates in response to the rotation of the gear worm 606, the rotational force according to the rotation axis of rotation The guide member 414 and the arm part 412 are rotated by transmitting to the guide member 414 and the arm part 412 through the 410 and the force transmission member 602. Of course, the rotating member 600 and the driving member 606 may also be implemented as a helical gear or the like, that is, there is no particular limitation as long as it can provide a rotational force to the rotating shaft 410.

Hereinafter, the coupling relationship of the components in the phase shifter will be described in more detail with reference to FIG. 8.

As shown in FIG. 8, the rotating shaft 410 is connected to the rotating member 600 and is connected to the guide member 414 through the dielectric substrate 400.

The guide member 414 includes a fitting base 414F and a tension portion for fixing the arm 412 in addition to the guide base member 414A, the side portion 414B, the support portion 414C and the guide protrusion 414D, and the side protrusion 414E. (Tension section, 414G) further.

Since the fitting portion 414F fixes the arm portion 412 as shown in FIG. 8, the rotational force provided through the rotation shaft 410 may be better transmitted to the arm portion 412.

The support 414C is supported by the bottom surface of the dielectric substrate 400, and the guide protrusion 414D extends from the support 414C and engages with the force transmission member 602 as mentioned above.

The tension unit 414G assists a predetermined gap between the arm unit 412 and the dielectric substrate 400 to help the phase shifter achieve a desired phase value.

The rotating shaft 410 and the guide member 414 transmit the rotational force of the rotating member 600 to the arm part 412.

Hereinafter, the phase shifter of the present invention is compared with the conventional phase shifter.

The conventional phase shifter rotates a gear wheel by controlling a gear worm, and transmits the rotational force according to the rotation of the gear wheel to the arm part through the rotation shaft and the guide member. In this case, when the gear worm rotates in the forward direction and then rotates again in the reverse direction, the rotational force is largely lost until the gear worm is transferred to the arm due to the friction between the gear worm and the gear wheel and a loss in the force transmission process. As a result, the rotational force generated by the rotation of the gear worm was not sufficiently transmitted to the arm portion. As a result, the user tried to change the phase of the phase shifter by a certain angle by applying a specific rotational force, but could not change the phase precisely due to the large loss of the rotational force.

On the other hand, the phase shifter of the present embodiment not only transmits the rotational force according to the rotation of the rotation member 600 to the arm portion 412 through the rotation shaft 410 and the guide member 414, but also the force transmission member 602 and the guide member ( It also passes to the arm portion 412 through 414. Of course, in the phase shifter of the present exemplary embodiment, when the rotating member 600 is rotated using the driving member 606, the arm part may be damaged due to friction between the driving member 606 and the rotating member 600 and a loss in the transfer process. A loss of force in 412 occurs. However, the phase shifter of this embodiment also transmits the rotational force to the arm portion 412 through the force transmission member 602 and the guide member 414, thereby reducing the loss of force than in the conventional phase shifter. For example, when the gear worm 606 is rotated in the forward direction and then rotated in the reverse direction, the loss of the force of one rotation or less occurs in the phase shifter of the present embodiment. Occurred. That is, the phase shifter of the present embodiment has a reduced power loss than the conventional phase shifter, and thus can control the phase change more precisely.

Although the phase shifter of the present embodiment has been described as outputting five signals to corresponding radiating elements, the number of output signals may vary according to the characteristics of the antenna element to be implemented. In this case, the number and arrangement of the lines will change according to the output signal.

In addition, the dielectric substrate 400 is formed on the front surface of the ground plate, but a dielectric layer different from the dielectric substrate 400 may be formed on a portion of the ground plate. That is, as long as the guide member 414 and the rotation member 600 (or the rotation shaft 410) are connected through the force transmission member 602, the structure and arrangement of the dielectric substrate and the line may be variously changed.

In the above, the guide protrusion 414D is formed in the support 414C of the guide member 414 and the guide protrusion 414D is inserted into the insertion portion 604 of the force transmission member 602. However, according to another embodiment of the present invention, the guide protrusion may not be formed in the guide member, and the force transmission member may be formed in a 'b' shape. In this case, one end of the force transmission member is connected to the rotating member, the other end is inserted into the recess formed on the lower surface of the support of the guide member may be coupled to the force transmission member and the guide member. That is, the shape of the force transmission member or the method of connecting the force transmission member with the rotation member (or the rotation shaft) and the guide member as long as the force transmission member connects the rotation member (or the rotation shaft) and the guide member. Can vary.

9 is a perspective view illustrating a phase shifter according to a second embodiment of the present invention, and FIG. 10 is a cross-sectional view illustrating the phase shifter of FIG. 9 according to a preferred embodiment of the present invention.

Referring to FIG. 9, the phase shifter of the present embodiment includes a first dielectric substrate 900, a second dielectric substrate 902, a rotation shaft 904, a first arm portion 906, a first guide member 908, and a second An arm portion 910 and a second guide member 912. That is, the phase shifter of the present embodiment implements two sub phase shifters as one. Here, the sub phase shifters operate as one phase shifter, respectively.

The first dielectric substrate 900 has a first dielectric constant, and predetermined lines are formed on an upper surface thereof.

The second dielectric substrate 902 has a second dielectric constant, and predetermined lines are formed on an upper surface thereof. Preferably, the second dielectric constant is substantially the same as the first dielectric constant.

The rotating shaft 904 penetrates through the first dielectric substrate 900 and the second dielectric substrate 902 as shown in FIG. 9, and guides 908 and 912 a rotational force according to the rotation of the rotating member (not shown). To pass). This rotation shaft 904 may be formed as one member, or may be formed by combining sub-rotation shafts as a separate type, as will be described later.

The first arm 906 is connected to the rotation shaft 904 and rotates in response to the rotation of the rotation shaft 904. Here, a specific line, which is a conductor, is formed under the first arm 906.

The second arm 910 is connected to the rotating shaft 904 and rotates in response to the rotation of the rotating shaft 904. Here, a specific line that is a conductor is formed below the second arm part 910.

The first guide member 908 fixes the first arm portion 906 and transmits the rotational force provided through the rotation shaft 904 to the first arm portion 906. In addition, the first guide member 908 has a structure in which the second guide member 912 can be inserted, as shown in FIG. 9.

The second guide member 912 fixes the second arm portion 910 and transmits the rotational force provided through the rotation shaft 904 to the second arm portion 910.

In other words, the phase shifter of the present embodiment includes a first sub phase shifter and a second dielectric substrate 902 and a second arm portion including a first dielectric substrate 900, a first arm portion 906, and a first guide member 908. A second sub phase shifter comprising a 910 and a second guide member 912 is connected through the shared rotating shaft 904. As a result, when the rotation shaft 904 rotates, the first arm portion 906 and the second arm portion 910 rotate at the same time.

Hereinafter, the detailed configuration of the phase shifter and the coupling relationship between the components will be described with reference to FIG. 10. However, since the coupling structure of the driving member, the rotation member, the rotation shaft 904 and the force transmission member 1000 is similar to that of the first embodiment, the description of the lower structure of the phase shifter will be omitted.

As shown in FIG. 10, the first guide member 908 includes a first guide base member 908A, a first support portion 908B, a first guide protrusion 908C, a first fitting portion 908D, and a support portion receiving portion. Part 908E, second guide protrusion 908F, first tension portion 908G, and first side protrusion 908H.

The second guide member 912 includes a second guide base member 912A, a second support portion 912B, a second fitting portion 912C, a second tension portion 912D, and a second side protrusion 912E. .

The first guide base member 908A is located on top of the first arm portion 906.

The first support 908B is supported by the first dielectric substrate 900 at the bottom of the first dielectric substrate 900.

The first guide protrusion 908C is inserted into the insertion portion of the force transmission member 1000 as shown in FIG. 10, and as a result, the rotation member and the first guide member 908 are connected.

The first fitting portion 908D is fitted into a recess formed in the upper surface of the first arm portion 906 to fix the first arm portion 906 to the first guide member 908. As a result, the rotational force of the rotation shaft 904 is transmitted to the first arm portion 906.

The support part accommodating part 908E is a part which accommodates the support part 912B of the 2nd guide member 912, and there is no restriction | limiting in particular in the form which accommodates the support part 912B. Since the support portion receiving portion 908E receives the second guide member 912, the first sub phase shifter having the first guide member 908 and the second sub phase shifter having the second guide member 912 are together. Can be linked stably.

In addition, the rotational force according to the rotation of the rotating member is transmitted to the second arm portion 910 through the rotation shaft 904 and the second guide member 912 as well as the force transmission member, the first guide member 908 and the second guide. It is also transmitted to the second arm 910 through the member 912. As a result, the loss of force from the rotating member to the second arm 910 can be reduced.

The second guide protrusion 908F is inserted into the recess formed in the second guide member 912 inside the support receiving portion 908E so that the rotational force generated by the rotating member can be transmitted well to the second guide member 912. Make sure

The first tension portion 908G is in close contact with the first arm portion 906 to assist in forming a predetermined space between the first arm portion 906 and the first dielectric substrate 900.

The first side protrusion 908H supports the side of the first arm 906 and secures the first arm 906 to the first guide member 908.

The second guide base member 912A of the second guide member 912 is positioned above the second arm portion 910.

The second support portion 912B supports the second dielectric substrate 902 under the second dielectric substrate 902 and is accommodated in the support portion receiving portion 908E of the first guide member 908.

The second fitting portion 912C is fitted into a recess formed in the upper surface of the second arm portion 910 to fix the second arm portion 910 to the second guide member 912. As a result, the rotational force of the rotation shaft 904 is transmitted to the second arm portion 910.

The second tension portion 912D is in close contact with the second arm portion 910 to assist in forming a predetermined space between the second arm portion 910 and the second dielectric substrate 902.

The second side protrusion 912E supports the side of the second arm portion 910 and fixes the second arm portion 910 to the second guide member 912.

In short, the phase shifter of the present embodiment implements two sub phase shifters in a stacked form, but sets the guide members 908 and 912 appropriately to stably link the sub phase shifters, and to the rotation of the rotating member. The resulting rotational force is efficiently transmitted to the arms 906 and 910.

In the above, the phase shifter is described as being composed of two sub phase shifters, but may be composed of three or more sub phase shifters. That is, the phase shifter of this embodiment is composed of two or more sub phase shifters. In this case, the rotation shaft 904 may be implemented in one piece, but it is preferable that the rotation shaft 904 is implemented in a separate type so as to separate the sub phase shifters. A detailed description of the detachable rotating shaft 904 will be described below with reference to FIGS. 11 and 12.

FIG. 11 is a view illustrating a first sub-rotation shaft among the rotation shafts according to an embodiment of the present invention, and FIG. 12 is a view showing a second sub-rotation shaft among the rotation shafts according to the embodiment of the present invention.

11 and 12, the rotating shaft 904 of the present embodiment is connected to the rotating member and rotates the first dielectric substrate 900 while passing through the first dielectric substrate 900. ) And a second sub-rotation shaft 904B for rotating the second sub-phase shifter while penetrating through the second dielectric substrate 902. Here, the first sub-rotation shaft 904A and the second sub-rotation shaft 904B are coupled between the first sub phase shifter and the second sub phase shifter.

Hereinafter, the sub rotation axes 904A and 904B will be described in detail.

First, the first sub-rotation shaft 904A will be described in detail.

Referring to FIG. 11, the first sub axis of rotation 904A includes a first axis of rotation base member 1100 and a first axis of rotation coupling member 1102.

The first rotating shaft base member 1100 is connected with the rotating member.

The first rotating shaft coupling member 1102 is formed at the end of the first rotating shaft base member 1100, and is wider than the width of the first rotating shaft base member 1100, for example, as shown in FIG. 11B. It has a circular shape with a width.

In addition, a rotation shaft protrusion 1104 and a rotation shaft insertion unit 1106 are formed on an upper surface of the first rotation shaft coupling member 1102.

The rotating shaft protrusion 1104 is accommodated in the rotating shaft receiving portion 1204 of the second sub rotating shaft 904B when the sub rotating shafts 904A and 904B are coupled, for example, as shown in FIG. 11B. Is implemented with

The rotating shaft inserting portion 1106 is formed with a recess or a hole so that the rotating shaft protrusion 1206 of the second sub rotating shaft 904B is inserted when the sub rotating shafts 904A and 904B are coupled. For example, the rotation shaft insert 1106 may be implemented as a recess having a circular shape between the cross shapes of the rotation shaft protrusion 1104.

According to the exemplary embodiment of the present invention, the rotation shaft protrusion 1108 may be formed on the lower surface of the first rotation shaft coupling member 1102 as shown in FIG. Here, the rotation shaft protrusion 1108 is inserted into the upper surface of the first guide member 908. In this case, although not shown, the upper surface of the first guide member 908 has a cross-shaped recess so that the rotation shaft protrusion 1108 may be inserted. When the rotation shaft protrusion 1108 is coupled to the first guide member 908, the rotational force of the rotation shaft 904 may be transmitted to the first guide member 908.

The structure of the first rotation shaft coupling member 1102 mentioned above may be variously modified as long as the first rotation shaft coupling member 1102 and the second rotation shaft coupling member 1202 may be coupled to each other.

Next, the second sub-rotation shaft 904B will be described in detail.

Referring to FIG. 12, the second sub-rotation shaft 904B includes a second rotation shaft base member 1200 and a second rotation shaft coupling member 1202.

The second rotating shaft base member 1200 penetrates the second dielectric substrate 902 and is connected to the second arm portion 910.

The second rotating shaft coupling member 1202 is coupled to the first rotating shaft coupling member 1102 and includes a rotating shaft receiving portion 1204 and a rotating shaft protrusion 1206 as shown in FIG.

The rotation shaft accommodating portion 1204 receives the rotation shaft protrusion 1104 of the first sub-rotation shaft 904A, and thus has the cross shape corresponding to the rotation shaft protrusion 1104 since it has a cross shape.

The rotary shaft protrusion 1206 has a protruding structure to be inserted into the rotary shaft inserting portion 1106 of the first sub rotary shaft 904A.

The structure of this second sub-rotation shaft 904B is not particularly limited as long as it can be combined with the first sub-rotation shaft 904A.

In short, the rotation axis 904 of the present embodiment consists of sub-rotation axes 904A and 904B which are coupled to each other. Therefore, when the user wants to use a plurality of sub-phase shifters, the user combines the sub-rotation axes 904A and 904B, and when the user wants to use only one sub-phase shifter, the second sub-rotation shaft 904B is the first sub-rotation shaft. Separate from 904A. That is, by implementing the rotary shaft 904 in this manner, not only can the phase shifter of the present embodiment be implemented in various forms, but also the convenience of use can be improved.

In the above, the phase shifter of the present invention has been described as being composed of two sub phase shifters, but may be composed of three or more sub phase shifters. In this case, the axis of rotation will consist of three or more sub axis of rotation so as to connect the sub phase shifters.

The embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. Should be considered to be within the scope of the following claims.

1 is a top view showing a conventional phase shifter.

FIG. 2 is a view schematically illustrating a bottom surface of the phase shifter of FIG. 1.

3 is a cross-sectional view illustrating the phase shifter of FIG. 1.

4 is a top view illustrating a phase shifter according to a first embodiment of the present invention.

5 is a side view of the phase shifter of FIG. 4 in accordance with an embodiment of the present invention.

6 is a schematic view illustrating a rear surface of the phase shifter of FIG. 4 according to an embodiment of the present invention.

FIG. 7 is a perspective view schematically illustrating a rear surface of the phase shifter of FIG. 6.

8 is a cross-sectional view illustrating the phase shifter of FIG. 4 in accordance with an embodiment of the present invention.

9 is a perspective view illustrating a phase shifter according to a second embodiment of the present invention.

10 is a cross-sectional view illustrating the phase shifter of FIG. 9 according to an exemplary embodiment of the present invention.

FIG. 11 is a diagram illustrating a first sub-rotation shaft among the rotation shafts according to the exemplary embodiment of the present invention. FIG.

12 is a diagram illustrating a second sub-rotation shaft among the rotation shafts according to the exemplary embodiment of the present invention.

Claims (1)

Rotating member; A first rotating shaft engaged with the rotating member; A first arm part connected to the first rotation shaft and extending in an outward direction of the first rotation shaft from the first rotation shaft; A first guide member connected to the first rotating shaft and the first arm to rotate the first arm according to the rotation of the first rotating shaft; And A force transmission member connecting at least one of the rotation member and the first rotation shaft to the first guide member, Phase shifter, characterized in that the first line is a conductor is arranged on one side of the first arm portion.

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