KR20150005305A - Antenna phase shifting device and antenna having the same - Google Patents

Antenna phase shifting device and antenna having the same Download PDF

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Publication number
KR20150005305A
KR20150005305A KR20130079089A KR20130079089A KR20150005305A KR 20150005305 A KR20150005305 A KR 20150005305A KR 20130079089 A KR20130079089 A KR 20130079089A KR 20130079089 A KR20130079089 A KR 20130079089A KR 20150005305 A KR20150005305 A KR 20150005305A
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KR
South Korea
Prior art keywords
variable output
substrate
strip
output strip
strips
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KR20130079089A
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Korean (ko)
Inventor
정인하
박래혁
김영선
육태경
주형준
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엘에스전선 주식회사
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Publication of KR20150005305A publication Critical patent/KR20150005305A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means

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  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The present invention relates to an antenna phase shifting device and an antenna having the same. The antenna phase shifting device according to the present invention is characterized in comprising: a first substrate having a power feeding unit; at least one pair of first variable output strips which are provided on the first substrate and receive output signals from the power feeding unit; at least one pair of second variable output strips which are provided on the first substrate to be separated from the first variable output strips, wherein output units are formed at one ends of the second variable output strips; a second substrate which is provided to be moved with respect to the first substrate; and at least one first middle strip which is provided on the second substrate to electrically connect the first variable output strips with the second variable output strips and varies a connection length between the first variable output strips and the second variable output strips according to a movement degree of the second substrate.

Description

[0001] The present invention relates to an antenna phase shifting apparatus and an antenna having the same,

The present invention relates to an antenna phase conversion apparatus and an antenna including the same, and more particularly, to an antenna phase conversion apparatus and a antenna having the same, which maintains the same phase conversion effect as the conventional antenna and significantly reduces the volume.

Mobile communication is capable of communication or data communication through a mobile terminal having a communication function and a base station antenna. An outdoor communication antenna can be installed for each operator by predicting coverage or communication load through a certain prediction. However, such changes may occur such that the prediction is missed or the surrounding environment is changed. In addition, in recent years, in the mobile communication system, the communication load is varied by region and time zone in many cases. In such a case, the service provider must perform corrective actions such as adjusting the radiation beam angle of the specific antenna to disperse the coverage or communication load.

Conventionally, as a method for adjusting the radiation beam angle of the antenna, the tilt of the antenna is physically adjusted, but the operation of adjusting the radiation beam of the antenna by directly adjusting the tilt of the antenna has been cumbersome and difficult.

Recently, a method of adjusting the angle of the entire radiation beam by adjusting the phase of a signal supplied to each radiating element provided in the antenna without directly controlling the tilt of the antenna has been introduced. In other words, a radiator can be controlled by employing a distributor for distributing a communication signal and a phase converter for adjusting the phase of a signal distributed to each radiating element, without tilting the antenna. The phase shifter performs not only the phase change for adjusting the radiation beam angle but also the power distributor for adjusting the power ratio applied to each radiating element.

The phase shifter physically adjusts the length of the transmission line to delay the input signal. That is, an arbitrary phase difference is generated between the input signal and the output signal, thereby widening the tilting range of the radiation beam. However, when the amount of phase change required in the phase shifter increases, the size of the phase shifter increases proportionally and occupies a large amount of physical space inside the antenna.

In addition, in the current mobile communication environment, not only the commercialization of 2G and 3G but also the commercialization of the next generation 4G LTE system is proceeding, a variety of mobile communication service frequency bands are mixed according to the communication system, It has been diversified accordingly. According to this tendency, the base station operator focuses on the base station sharing technology [Co-Site] which can operate various communication systems from a single base station to reduce CAPEX / OPEX. Among the base station sharing issues, multi-band beam tilting antennas operating in multiple bands are becoming a new trend. Accordingly, in the conventional single band beam tilting antenna, two phase converters for + 45 ° and -45 ° polarizations are provided. However, the multi-band beam tilting antennas are required to have a multiple number of phase converters according to the number of frequency bands. For example, a dual band antenna requires four phase shifters, and a triple band antenna requires six phase shifters. As described above, since the number of the phase shifters is increased in proportion to the frequency band required when the multiband beam tilting antenna is installed, development of technology for miniaturization of the phase shifter has been urgently required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a phase conversion device and a method of manufacturing the same that can significantly reduce the volume of a phase shifting device.

In particular, it is an object of the present invention to provide a phase shifting device capable of reducing the volume of the phase shifting device while maintaining the same phase shift amount as that of the conventional phase shifting device.

According to an aspect of the present invention, there is provided a liquid crystal display device including a first substrate having a power supply portion, at least one pair of first variable output strips provided on the first substrate and receiving an output signal from the power supply portion, At least one pair of second variable output strips separated from the first variable output strip and having an output at one end thereof, a second substrate movably disposed relative to the first substrate, At least one of the first variable output strip and the second variable output strip electrically connecting the first variable output strip and the second variable output strip and varying the connection length of the first variable output strip and the second variable output strip according to the degree of movement of the second substrate, And a first intermediate strip of the second antenna strip.

In this case, the second substrate may be provided so as to be rotatable relative to the first substrate.

Here, the first variable output strip and the second variable output strip may have an arc shape. Further, the first variable output strip and the second variable output strip may be provided in parallel on the first substrate, The first variable output strip and the second variable output strip may be overlapped on the first substrate toward the outside.

In the meantime, the first intermediate strip has a different point of contact with the first variable output strip and the second variable output strip, respectively, according to the degree of rotation of the second substrate. Specifically, the first intermediate strip may include a first extending portion and a second extending portion connected to the first variable output strip and the second variable output strip, respectively, and a bending portion connecting the first extending portion and the second extending portion .

Here, the first extension part and the second extension part may be provided on the second substrate so as to be parallel to the first variable output strip and the second variable output strip, respectively. That is, the contact point between the first extended portion and the first variable output strip and the contact point between the second extended portion and the second variable output strip are changed according to the degree of rotation of the second substrate.

The antenna phase shifting device may further include at least one third variable output strip provided on the first substrate and having output portions at both ends thereof. The second intermediate strip may further include a second intermediate strip provided on the second substrate and electrically connected to the feeder, the second intermediate strip having a contact point along the third variable output strip according to the rotation of the second substrate.

Here, when the second substrate rotates at a predetermined angle, the phase change by the first variable output strip, the second variable output strip, and the first intermediate strip may be at least two times the phase change by the third variable output strip .

Wherein the first variable output strip and the second variable output strip in the antenna phase shifting apparatus have an arc shape and are arranged parallel to the first substrate, the rotation center of the second substrate and the third variable output strip May be configured to be equal to the distance from the center of rotation of the second substrate to the center of the separation distance between the first variable output strip and the second variable output strip.

The antenna phase shifter may further include at least one fixed output strip provided on the first substrate and electrically connected to the feed unit to have an output unit.

Further, the antenna phase shifting apparatus may include a housing accommodating the first substrate, a second substrate rotatably mounted on the housing, an upper portion opened, a spring member provided on the second substrate, As shown in Fig.

It is another object of the present invention to provide an antenna including at least one or more antenna phase shifters.

According to the present invention having the above-described configuration, the phase change amount is adjusted in accordance with the amount of rotation of the second substrate corresponding to the first substrate, and the phase conversion can be performed by the phase conversion device having a simple structure. Further, the volume can be significantly reduced by a pair of parallel strips while keeping the same amount of phase variation of the signal as compared with the conventional structure, so that the antenna can be downsized when the antenna is installed. In particular, even when a phase shifter is provided according to a frequency band required in a multi-band antenna or the like, the installation area of the phase shifter can be reduced to a minimum, and the frequency band can be increased while reducing the volume.

1 is an external perspective view of an antenna according to an embodiment,
Fig. 2 is an exploded perspective view showing a state in which the cover is separated in Fig. 1,
FIG. 3 is a rear view of the back surface of the radiation plate in FIG. 1,
4 is a front view showing a configuration of a phase shifter according to an embodiment,
FIG. 5 schematically illustrates a strip and phase shifter in the phase shifting device according to FIG. 4,
FIG. 6 is a schematic view showing a phase change of an output signal through each output part according to the rotation of the phase converter in FIG. 5,
7 is an exploded perspective view of a phase shifter according to another embodiment,
FIG. 8 is an assembled perspective view of FIG. 7,
FIG. 9 is a plan view showing the first substrate and the second substrate in FIG. 7,
FIG. 10 is a plan view showing the first substrate and the second substrate superimposed on each other in FIG. 9,
Fig. 11 is a schematic view showing driving means for rotating the second substrate in Fig. 7,
FIG. 12 is a schematic view showing a configuration of an antenna including a phase shifter according to FIG. 7. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference numerals designate like elements throughout the specification.

FIG. 1 is a perspective view of an antenna 100 having an antenna phase shifter according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view in which a cover 10 of the antenna 100 is separated in FIG.

1 and 2, the communication base station antenna 100 may be installed on a building roof or the like. In this case, the antenna 100 may include a radiation plate 40 having a plurality of radiation elements 50 and a cover 10 for shielding the radiation plate 40.

The radiating element 50 is provided for transmitting and receiving radio waves and for radiating high frequency and low frequency signals. In this case, in order to minimize the installation space of the antenna 100, the antenna 100 has a long and thin box shape in the up-down direction or the left-right direction so that the radiating elements 50 are arranged in a line.

Below the antenna 100, a transmission data cable installation part 20 and a reception data cable installation part 30 through which a transmission data cable and a reception data cable are inserted, respectively, may be provided. Although not shown in the figure, when the antenna supports multiple frequency bands, the mounting unit may be configured to connect only one of the transmission data cable or the reception data cable corresponding to the multiple bands, . Hereinafter, it is assumed that one transmission data cable installation unit 20 and one reception data cable installation unit 30 are provided.

1, a front surface of the antenna 100 is covered with a cover 10, and a radiation beam radiated through the antenna 100 is converted into a first radiation angle by a phase converter 200, which will be described later, The phase of the output signal of each radiating element can be changed so as to be radiated to the radiation beam A 'having the second radiation angle in the radiation beam A having the radiation angle A'.

2, the antenna 100 includes a plurality of radiating elements 50 inside the cover 10, and a radiating plate 40 may be provided behind the radiating elements 50. As shown in FIG. That is, the radiating plate 40 is provided with a plurality of radiating elements 50, and the plurality of radiating elements 50 may be arranged in a line along the longitudinal direction of the radiating plate 40 to reduce an installation space.

3 is a rear view showing the back surface of the radiation plate 40. Fig.

Referring to FIG. 3, a plurality of antenna phase shifters 200, which will be described later, are provided on the back surface of the radiation plate 40. For example, two of the antenna phase shifters 200 may be provided, one connected to the transmission data cable mounting unit 20 and the transmission line 60 to distribute the output signal and / And the other is connected to the reception data cable mounting portion 30 and the reception line 62 to collect the reception signal. Of course, as described above, in the case of an antenna supporting multiple frequency bands, the plurality of antenna phase shifters 200 are connected to the transmission data cable mounting unit 20 and the transmission line 60 to distribute and / Or phase change, or both to receive data cable mount 30 and receive line 62 to collect the received signal. Hereinafter, an antenna phase shifting apparatus 200 connected to the transmission data cable mounting unit 20 for distributing and / or phase-modulating an output signal will be described.

The antenna phase shifter 200 distributes the output signal to the radiating element 50 and changes the phase of the output signal transmitted to at least one of the radiating element 50. That is, the phase shifter 200 distributes the power supply signal (or output signal) supplied through the power feeder 230 (see FIG. 4) to each radiating element 50, (See, for example, FIG. The phase shifter 200 may change the phase of a signal supplied to each radiating element 50 to adjust the radiation angle of the radiation beam radiated from the entire antenna. Here, the phase shifter 200 may adjust the length of a feed path for feeding a signal to each radiating element 50 to change the phase of a signal supplied to each radiating element 50. Hereinafter, the configuration of the phase shifting device will be described in detail with reference to the drawings.

4 is a front view showing a configuration of a phase shifter 200 according to an embodiment. Fig. 4 shows an example of an antenna phase shifter 200 according to the present invention.

4, the phase shifter 200 includes a substrate 210 having a feeder 230 and a plurality of output units 240, 242, 244, 246 and 248, a feeder 230, And a phase shifter 220 for connecting the output units 240, 242, 244, 246 and 248 to each other and changing the phase of a signal output to at least one of the output units 240, 242, 244, 246 and 248 can do.

At least one feeder 230 is provided on the substrate 210 to receive an output signal. At least one strip 252 and 254 having output portions 240, 242, 244, 246 and 248 at one end or both ends thereof are formed on the substrate 210, And a phase shifter 220 electrically connected to the substrate 210 and rotatably mounted on the substrate 210 and contacting the strips 251, 252, and 254, respectively. Here, the strip may be composed of a 'strip line' or a 'micro strip', but is not limited thereto.

The phase shifter 220 is rotatably mounted on a substrate 210 provided with a feed part 230 around a rotation axis 222 and includes a feed part 230 provided on the substrate 210, ) Can be electrically connected to one side.

At least one strip 251, 252, 254 may be provided on the substrate 210. At least one of the strips 251, 252 and 254 may comprise, for example, an arcuate region, wherein the strips 251, 252 and 254 are arranged such that the rotational axis 222 of the phase shifter 220 is mounted And may be formed of a conductor.

Outputs 240, 242, 244, 246, and 248 electrically connected to the radiating elements 50 may be provided at both ends of the strips 251, 252, and 254, respectively. Each output 240, 242, 244, 246, 248 may be connected to each radiating element 50 by a cable or the like. In this case, the plurality of output units 240, 242, 244, 246, and 248 include at least one fixed output unit 240 and at least one pair of variable output units 242, 244, 246, and 248 .

For example, the antenna phase shifter 200 shown in FIG. 4 is provided with two strips 252 and 254, and the strips 252 and 254 have output portions 242, 244, 246, 248 may be provided. 4, the substrate 210 of the antenna phase shifter 200 includes four feeders 242, 244, 242 provided at both ends of one feeder 230, two strips 252, 254, 246 and 248, and one output unit 240 directly connected to the feed unit 230. The output unit 240 includes five output units. That is, the output signal supplied from the power feeder 230 includes four variable outputs 242, 244, 246, and 248 that can be changed in phase through the phase shifter 220 and one fixed output (240).

The phase shifter 220 connects the strips 252 and 254 to the power feeder 230 provided on the substrate 210 and further connects the output portions 242 and 244 at both ends of the strips 252 and 254 246, and 248, respectively, to change the phase of the output signal.

The phase shifter 220 is mounted on the substrate 210 so as to be rotatable about a rotation axis 222. The rotation axis 222 of the phase shifter 220 may be connected to the feeding part 230 of the substrate and the feeding strip 250. The feeder 230 and the fixed output unit 240 to which the fixed output is supplied may be connected by the first strip 251. In this case, the strips 252 and 254 connected to the four variable output portions, namely the two pairs of variable outputs 242, 244, 246 and 248, respectively, are connected to the second strip 252 and the third strip 254 Can be defined.

The phase shifter 220 may be made of the same material as the strip, or may be formed on a separate substrate. The embodiment shown in FIG. 4 is shown provided with a strip 224 on the phase shifter 220.

The contact point between the phase shifter 220 and the second strip 252 and the third strip 254 may vary when the phase shifter 220 is rotated on the substrate 210. [ When the outputs connected to both ends of the second strip 252 are defined as the first variable output unit 242 and the fourth variable output unit 248, The feeding path connecting the fourth variable output unit 242 and the fourth variable output unit 248 to the feeding unit 230 is different. Similarly, when the output section connected to both ends of the third strip 254 is defined as the second variable output section 244 and the third variable output section 246, The feed path for connecting the second variable output unit 244 and the third variable output unit 246 to the feed unit 230 is changed

5 is a view schematically showing the configuration of the phase shifter 200 having the configuration according to the above-described FIG. 4, with the strips 252 and 254 and the phase shifter 220 as a center.

Referring to FIG. 5A, the second strip 252 may have an arc shape about the rotation axis 222 of the phase shifter 220. In this case, the second strip 252 is spaced apart from the rotation axis 222 of the phase shifter 220 by a distance '2r'. In other words, the radius of the arc of the second strip 252 is '2r' . The third strip 254 may have an arc shape centering on the rotation axis 222 of the phase shifter 220. In this case, And is spaced apart from the rotation axis 222 by a distance 'r'. In other words, the radius of the arc of the third strip 254 corresponds to 'r'.

The length of the feed path that reaches the power feeder 230 and each variable output unit in the same state as in FIG. 5 (A) is as follows.

For example, the distances of the feed paths between the first variable output portion 242 and the fourth variable output portion 248 provided at both ends of the second strip 252 and the feeding portion 230 are the same Able to know. 5A, since the phase shifter 220 is located at the central portion along the circumferential path of the second strip 252, the first variable output portion 242 and the fourth variable output portion 242 at both ends along the second strip 252, The length to the variable output section 248 becomes equal. Therefore, the lengths of the feed paths reaching the first variable output section 242 and the fourth variable output section 248 through the phase shifter 220 in the feed section 230 are the same. Therefore, in the above state, the first variable output unit 242 and the fourth variable output unit 248 output the same phase output signal. The lengths of the feed paths of the second variable output unit 244 and the third variable output unit 246 provided at both ends of the third strip 254 and the feeding unit 230 are the same .

As a result, if the phase shifter 220 is located at the center along the circular path of the second strip 252 or along the circular path of the third strip 254 without rotating, as shown in FIG. 5A, It can be seen that the output signals output to the pair of variable output sections located at both ends of each strip have the same phase.

5 (B), it is assumed that the phase shifter 220 is rotated clockwise by a predetermined angle '?'.

5 (B), when the phase changer 220 is rotated by '?' In the clockwise direction, the contact between the phase shifter 220 and the second strip 252 and the third strip 254 The point will be different. When the contact point is changed as described above, the distance of the feed path from the feeder 230 to the variable output unit through the phase shifter 220 is changed, and the phase conversion is performed.

The contact point between the phase shifter 220 and the second strip 252 is shifted from the first variable output unit 242 by a distance L 1 ', while it is separated from the fourth variable output unit 248 by a distance' L 1 '. Here, the distance 'L 1 ' is calculated by the following equation (1).

Figure pat00001

Therefore, the distance of the feed path between the feed part 230 and the first variable output part 242 is reduced by the distance L 1 compared to FIG. 5A, and a phase change occurs. On the other hand, The distance of the feed path between the fourth variable output unit 230 and the fourth variable output unit 248 is increased by a distance L 1 compared to FIG. 5A, and a phase change occurs.

The third strip 254 is rotated by the phase shifter 220 so that the contact point between the phase shifter 220 and the third strip 254 is shifted from the second variable output unit 244 by a distance L 2 Quot ;, while the distance from the third variable output unit 246 by the distance " L 2 " Here, the distance 'L 2 ' is calculated by the following equation (2).

Figure pat00002

As a result, the physical length of the feed path connecting the feeding part 230 and each variable output part changes in accordance with the rotation of the phase shifter 220, and the output signal supplied through each variable output part A phase change of " Further, compared to the distance 'L 1' and 'L 2', the Equation 1 and the length of the 'L 1' as shown in Equation (2) corresponds to twice the 'L 2' .

5 (B), there is no change in the length of the feed path between the fixed output section 240 and the feed section 230 even if the phase changer 220 rotates at a predetermined angle?. This is because the feeding part 230 and the fixed output part 240 are directly connected by the first strip 251 irrespective of the rotation of the phase shifter 220.

Fig. 6 is a schematic diagram showing the phase change supplied through each output section in a state according to the above-described Fig. 5 (A) and Fig. 5 (B). 6 (A) corresponds to Fig. 5 (A), and Fig. 6 (B) corresponds to Fig. 5 (B).

Referring to FIG. 6A, the phase shifter 220 is disposed at a central portion along a circular path of the second strip 252, or at a central portion along a circular path of the third strip 254, as shown in FIG. The phases of the output signals supplied to the variable output units 242, 244, 246, and 248 and the fixed output unit 240 are not changed.

6 (B), when the phase converter 220 rotates as shown in FIG. 5B, the power feeder 230 and the variable output units 242, 244, 246, and 248 And the phase of the output signal is changed.

As described above, the phase change of the first variable output unit 242 and the fourth variable output unit 248 occurs in correspondence with the distance 'L 1 '. Specifically, the first variable output unit 242 outputs The feed path is shortened by 'L 1 ' to increase the phase of the output signal. On the other hand, the fourth variable output unit 248 lengthens the feed path by the distance 'L 1 ' do.

On the other hand, the second variable phase shift of the output section 244 and the third variable-output portion 246 is generated in response to the distance 'L 2', specifically, the second variable output 244 is a distance 'L 2 , The phase of the output signal is increased. On the other hand, the third variable output unit 246 lengthens the feed path by the distance 'L 2 ', and the phase of the output signal is delayed.

Here, compared to the distance 'L 1' and 'L 2', the Equation 1 and the length of the 'L 1' as shown in Equation (2) corresponds to twice the 'L 2' . That is, when the phase changer 220 rotates at the predetermined angle?, The phase change occurring in the first variable output unit 242 and the fourth variable output unit 248 is changed by the second variable output unit 244 Which is twice the phase change occurring in the third variable output unit 246. This is because the distance (radius) between the second strip 252 and the rotation axis 222 of the phase shifter 220 is equal to 2r and between the third strip 254 and the rotation axis 222 of the phase shifter 220 Is twice as large as the distance (radius) of 'r'.

6 (B), even if the phase converter 220 rotates at a predetermined angle? As shown in FIG. 5 (B), the output signal output through the fixed output section 240 is phase- . As described above, the fixed output unit 240 is directly connected by the first strip 251 irrespective of the rotation of the phase shifter 220, so that the power supply between the fixed output unit 240 and the feed unit 230 There is no change in the length of the path.

The phase shifter 200 having the above structure includes a phase shifter 220 provided rotatably and a plurality of strips positioned at different distances (radii) from the rotation center of the phase shifter 220 And a variable output portion is provided at both ends of the strip. Accordingly, a change in the physical length of the feed path connecting each variable output unit and the feed unit 230 occurs due to the rotation of the phase shifter 220, and a phase change occurs in the output signal supplied through each variable output unit do.

In the phase shifter 200 having the above structure, a plurality of strips having different radii are provided at the rotation center of the phase shifter 220. This is because the radius between the strip and the rotation axis must be increased in order to change the length of the physical feed path in order to increase the phase change of the output signal supplied through the variable output section. Accordingly, as the radius between the centers of rotation of the respective strips and the phase shifter increases, the volume of the phase shifter 200 increases proportionally. When the volume of the phase shifter 200 is increased, the antenna 100 requires a wider installation space for installing the phase shifter 200. In addition, as described above, there is a growing need for multi-band antennas in recent years. In this case, a pair of phase shifters is required corresponding to each frequency band. Accordingly, as the required frequency band increases, the number of phase shifters to be provided in a single antenna also increases proportionally. As a result, as the number of phase shifters to be installed in a single antenna increases, it is necessary to develop a technology for miniaturization that can reduce the volume of the phase shifter, .

Hereinafter, a configuration of a phase shifter according to another embodiment of the present invention, which can reduce the volume of the phase shifter while providing a phase change of the same degree as the conventional one, will be described with reference to the drawings.

FIG. 7 is an exploded perspective view showing a configuration of a phase shifter 2000 according to another embodiment, and FIG. 8 is a combined perspective view.

7 and 8, the phase shifter 2000 according to the present embodiment includes a first substrate 2100 having a power feed unit 2110 (see FIG. 9) and various output units, And a second substrate 2500 which is relatively movable with respect to the first substrate 2500. The phase shifter 2000 further includes a housing 2600 that houses the first substrate 2100 and includes the second substrate 2500 movably and has an open top, a second substrate 2500, A spring member 2700 provided on an upper portion of the housing 2600 and a cover 2800 closing an opened upper portion of the housing 2600. [

The housing 2600 forms an outer appearance of the phase shifter 2000 and forms a space for accommodating the first substrate 2100 and the second substrate 2500 therein, .

The first substrate 2100 is accommodated in the housing 2600 and the first substrate 2100 and the second substrate 2500 are relatively movable. For example, the second substrate 2500 may be relatively rotatable relative to the first substrate 2100. Hereinafter, a case where the second substrate 2500 is rotatable with respect to the first substrate 2100 will be described. However, the present invention is not limited thereto and other variations may be made within the technical scope of the present invention .

When the second substrate 2500 is relatively rotatable with respect to the first substrate 2100, the first substrate 2100 is fixed to the inside of the housing 2600, The first substrate 2100 may be rotatably disposed on the inner side of the housing 2600 and the second substrate 2500 may be fixed. Further, the first substrate 2100 and the second substrate 2500 may be rotatably provided in the housing 2600. Hereinafter, it is assumed that the first substrate 2100 is fixed to the inside of the housing 2600, and the second substrate 2500 is rotatably mounted on the first substrate 2100 Explain.

The first substrate 2100 may be fixed to the housing 2600. The first substrate 2100 may include a power feeder 2110 for supplying an output signal and various output units. Meanwhile, the second substrate 2500 may be provided on the first substrate 2100 so as to be rotatable with respect to the housing 2600. As the second substrate 2500 rotates, the length of the feed path connecting the feeding part 2110 of the first substrate 2100 to various output parts is changed, which will be described in detail later.

The upper portion of the second substrate 2500 may have a spring member 2700 that presses the second substrate 2500 to a degree that allows the second substrate 2500 to rotate. For example, the spring member 2700 may be formed of a press ring or the like. The spring member 2700 serves to prevent the second substrate 2500 from being released during rotation.

Meanwhile, the cover 2800 closes the open top of the housing 2600. It is noted that the cover 2800 is omitted in FIG. 8 to show the internal structure.

The phase shift device 2000 according to the present embodiment changes the physical length of the feed path connecting the feeding part and the output part by the relative rotational movement of the first substrate 2100 and the second substrate 2500, The volume of the variable output strip formed on the first substrate 2100 can be significantly reduced. Hereinafter, this embodiment will be described in detail with reference to FIG.

FIG. 9 is an enlarged plan view of the first substrate 2100 and the second substrate 2500 in FIG.

9, the phase shifting device 200 includes a first substrate 2100 having a feed part 2110, and a second substrate 2100 provided on the first substrate 2100 to supply an output signal from the feed part 2110 At least one pair of first variable output strips 2200A and 2200B disposed on the first substrate 2100 and separated from the first variable output strips 2200A and 2200B and having output units 2410 and 2440 A second substrate 2500 rotatably disposed relative to the first substrate 2100, and at least one pair of second variable output strips 2210A and 2210B provided on the second substrate 2500, And electrically connects the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B to the first variable output strips 2200A and 2200B according to the degree of rotation of the second substrate 2500, 2200A, 2200B and the second variable output strips 2210A, 2210B, And ribs 2550A and 2550B.

In the phase shifter 2000 according to the present embodiment, the variable output strips provided on the first substrate 2100 are not continuously connected from the feed part to the output part, but are cut off in the middle. For example, the variable output strip connecting the first variable output unit 2410 and the feed unit 2110 includes a first variable output strip 2200A that receives an output signal from the feed unit 2110, And at least one second variable output strip 2210A provided on the first variable output strip 2100 and separated from the first variable output strip 2200A and having a first variable output portion 2410 at one end thereof. The first variable output strip 2200A and the second variable output strip 2210A are separated on the first substrate 2100 but may be electrically connected by the second substrate 2500. [

That is, the second substrate 2500 is provided with first intermediate strips 2550A and 2550B for electrically connecting the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B to each other do.

As a result, when the second substrate 2500 rotates, the first intermediate strips 2550A and 2550B are moved in a direction in which the first variable output strips 2200A and 2200B and the second variable output strips 2200A and 2200B, So that the physical length of the feeding path connecting the feeding part 2110 and the output part can be changed. Meanwhile, the variable output strip and the intermediate strip may be formed of a 'strip line' or a 'micro strip' as described above, but are not limited thereto. Hereinafter, the present invention will be described in detail.

The phase shifter 2000 according to the present embodiment includes a feeder 2110, at least one fixed output unit 2500 and at least one pair of variable output units 2410, 2420, 2430, and 2440, respectively. For example, FIG. 9 shows a case in which the power supply unit 2110, the fixed output unit 2500, and the pair of variable output units 2410, 2420, 2430, and 2440 are provided, But it is needless to say that the number of the fixed output unit and the number of the pair of the variable output unit can be appropriately modified.

The first substrate 2100 has a substantially circular shape and includes a feeding part 2110. The feeding part 2110 is connected to the rotation axis 2105 of the central part through the feeding line 2112 and further connected to the first variable output strips 2200A and 2200B. For example, a pair of the first variable output strips 2200A and 2200B may be provided. Further, the first substrate 2100 may include a pair of second variable output strips 2210A and 2210B corresponding to the first variable output strips 2200A and 2200B. The pair of second variable output strips 2210A and 2210B may be connected to the first variable output unit 2410 and the fourth variable output unit 2440, respectively.

In this case, the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B may have an arc shape according to the shape of the first substrate 2100, The first variable power strips 2200A and 2200B and the second variable output strips 2210A and 2210B may be provided on the first substrate 2100 in parallel. In addition, the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B may be overlapped on the first substrate 2100 toward the outside. That is, as shown in the drawing, the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B are substantially arc-shaped and parallel and open toward the same direction. Further, the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B are disposed so as to overlap with each other toward the outer periphery of the first substrate 2100.

The distance between the center A of the distance between the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B and the center of the first substrate 2100 in the above- and the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B are spaced the same distance d from the central portion A. That is, the circular arc shapes of the first variable output strips 2200A and 2200B have a radius of 'rd' at the center of the first substrate 2100, and the circular arc shapes of the second variable output strips 2210A and 2210B are And has a radius of 'r + d' at the center of the first substrate 2100.

In the embodiment of FIGS. 4 and 5, the second strip 252 having a radius '2r' at the center is provided, so that the volume increases according to the radius of the second strip 252. However, in the present embodiment, the first variable output strips 2200A and 2200B and the second variable output strips 2200A and 2200B, which are formed so as to be substantially parallel to each other when the feed path connecting the feed portion 2110 and one variable output portion is formed, And the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B are spaced apart by the same distance d from 'r' The volume can be significantly reduced. In other words, the second variable output strips 2210A and 2210B provided at the outermost portion of the first substrate 2100 in FIG. 9A have a distance (radius) of 'r + d' d 'is sufficiently small, the entire radius of the first substrate 2100 has a relatively small radius as compared with the case of having a radius of 2r. Therefore, in the case of the present embodiment, it becomes possible to implement a phase-change device having a relatively small volume as compared with the embodiments of Figs. 4 and 5 described above.

The first intermediate strips 2550A and 2550B are connected to the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B respectively according to the degree of rotation of the second substrate 2500, The point of difference becomes different.

Specifically, the second substrate 2500 may include an upper second substrate 2505 and a lower second substrate 2507 which are rotated at the same angle in cooperation with each other. Although the upper second substrate 2505 and the lower second substrate 2507 are not shown in the drawing, they may be connected to each other by connecting means (not shown) . Also, although not shown in the drawing, the second substrate may have a circular shape similar to that of the first substrate 2100, and both the first intermediate strip and the second intermediate strip may be provided on one substrate have.

The first intermediate strips 2550A and 2550B may be provided on the lower surface of the second substrate 2500 and specifically on the lower surface of the second upper substrate 2505. In this case, the first intermediate strips 2550A and 2550B include first extensions 2510A and 2510B connected to the first variable output strips 2200A and 2200B and second variable output strips 2210A and 2210B, respectively, Second extension portions 2530A and 2530B and bent portions 2540A and 2540B connecting the first extension portions 2510A and 2510B to the second extension portions 2530A and 2530B.

The first extension portions 2510A and 2510B and the second extension portions 2530A and 2530B are electrically connected to the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B, The first extension portions 2510A and 2510B and the second extension portions 2530A and 2530B are parallel to the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B And may be provided on the second substrate 2500. As a result, when the second substrate 2500 is provided on the first substrate 2100, the first intermediate strips 2550A and 2550B provided on the lower surface of the second substrate 2500 are connected to the first variable output And are electrically connected to the strips 2200A and 2200B and the second variable output strips 2210A and 2210B. More specifically, the first extensions 2510A, 2510B and the second extensions 2530A, 2530B of the first intermediate strips 2550A, 2550B are connected to the first variable output strips 2200A, 2200B and the second variable And are arranged to be electrically connected to the output strips 2210A and 2210B.

The contact points between the first extension portions 2510A and 2510B and the first variable output strips 2200A and 2200B and the contact points between the second extension portions 2530A and 2530B The contact points of the second variable output strips 2210A and 2210B are changed to change the length of the feed path, thereby causing a phase change. This will be described in detail later.

Meanwhile, the first substrate 2100 may further include at least one third variable output strip 2300 having variable output portions at both ends thereof. For example, the third variable output strip 2300 may include a second variable output portion 2420 and a third variable output portion 2430 at both ends thereof. For example, the third variable output strip 2300 may be disposed below the central portion of the first substrate 2100, and the arc shape of the third variable output strip 2300 may be formed on the first substrate 2100, R 'at the rotation axis 2105, which is the center of the rotation axis 2105.

The second substrate 2500 is electrically connected to the feeder 2110 and has a contact point along the third variable output strip 2300 according to the rotation of the second substrate 2500, A strip 2562 may be further provided. Specifically, a second intermediate strip 2562 may be provided on the lower surface of the lower second substrate 2507 in the second substrate 2500. The second intermediate strip 2562 may be electrically connected to the feeding portion 2110 of the first substrate 2100 through the rotation axis 2503 of the second substrate 2500.

As a result, when the second substrate 2500 rotates, the first intermediate strips 2550A and 2550B and the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B, The second intermediate strip 2562 and the third variable output strip 2300 are different from each other, and thus the phase of the output signal output through the first variable output unit 2410 and the fourth variable output unit 2440 is changed, And thus the phase of the output signal output through the second variable output unit 2420 and the third variable output unit 2430 is accompanied by a phase change.

Meanwhile, reference numeral 2590, which is not described in FIG. 9, shows a connection hole, which will be described in detail later.

The first substrate 2100 may further include at least one fixed output strip 2510 electrically connected to the feed unit 2110 and having an output unit. That is, the fixed output strip 2510 is electrically connected to the feed part 2110 and outputs an output signal having a constant phase to the fixed output part 2500.

10 is a plan view showing a case where the first substrate 2100 and the second substrate 2500 are overlapped in this embodiment. For convenience of explanation, the first substrate 2100, the first variable output strips 2200A and 2200B, the second variable output strips 2210A and 2210B, and the third variable output strip 2300, which are obscured by the second substrate 2500, Quot;). ≪ / RTI > 10 (A) and 10 (C) show a state in which the second substrate 2500 is not rotated, and FIGS. 10 (B) and 10 (&thetas;).

The phase of the output signal output through the first variable output unit 2410 and the fourth variable output unit 2440 in the case where the second substrate 2500 is not rotated as shown in FIG. 10 (A) . That is, in the case of FIG. 10A, the output signal supplied from the feeding part 2110 is applied to the first variable output strips 2200A and 2200B of the first substrate 2100, the first intermediate strips of the second substrate 2500, The first variable output strips 2210A and 2210B of the first substrate 2100 are connected to the first variable output unit 2410 and the fourth variable output unit 2440 via the second variable output strips 2210A and 2210B of the first substrate 2100, In length. Also, output signals output through the second variable output unit 2420 and the third variable output unit 2430 have no phase difference. 10A, the second intermediate strip 2562 of the second substrate 2500 is connected to the center of the third variable output strip 2300, so that the second variable output portion 2420 at both ends, Variable output section 2430. The third variable output section 2430 has the same length as the third variable output section 2430.

When the second substrate 2500 is rotated by a predetermined angle? In the counterclockwise direction in the state of FIG. 10A or when the second substrate 2500 is rotated clockwise by a predetermined angle? As shown in FIG. 10B, when the second substrate 2500 is rotated by the angle θ, a phase change occurs in an output signal supplied through each variable output unit.

Specifically, referring to the first variable output unit 2410, when the second substrate 2500 is rotated by a predetermined angle? In the counterclockwise direction as shown in FIG. 10B, The contact points of the first intermediate strips 2550A and 2550B and the first variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B of the first substrate 2100 are changed. That is, as shown in the drawing, the distal end of the first extension 2510A of the first intermediate strip 2550A and the distal end of the first variable output strip 2200A come into contact with the rotation of the second substrate 2500 Similarly, the distal end of the second extension 2530A of the first intermediate strip 2550A and the distal end of the second variable output strip 2210A are in contact with each other. The feed path connected to the first variable output section 2410 through the first variable output strip 2200A, the first intermediate strip 2550A and the second variable output strip 2210A in the feed section 2110 is Is increased by the distance 'L 3 + L 4 ' as compared with FIG. 10 (A). Here, 'L 3 ' corresponds to the increased length of the feed path connecting the first variable output strip 2200A and the first extended portion 2510A, 'L 4 ' corresponds to the increased length of the second variable output strip 2210A, 2 extension portion 2530A of the first embodiment.

On the other hand, when the second substrate 2500 is rotated by a predetermined angle? In the counterclockwise direction as shown in FIG. 10B, The first extension 2510B of the first intermediate strip 2550B and the first variable output strip 2200B substantially overlap with each other and the second extension 2530B of the first intermediate strip 2550B and the The two variable output strips 2210B are almost overlapped. The feed path connected to the fourth variable output section 2440 through the first variable output strip 2200B, the first intermediate strip 2550B and the second variable output strip 2210B in the feed section 2110 is L 3 + L 4 'as compared with FIG. 10 (A).

Here, the change length L 3 of the feed path connecting the first variable output strips 2200A and 2200B to the first extensions 2510A and 2510B is calculated as shown in Equation ( 3 ).

Figure pat00003

In Equation (3), the distance of 'r-d' means the radius to the central portion of the first variable output strips 2200A and 2200B and the first substrate 2100.

The change length L 4 of the feed path connecting the second variable output strips 2210A and 2210B to the second extensions 2530A and 2530B is calculated as follows:

Figure pat00004

In Equation (4), the distance of 'r + d' means the radius of the second variable output strips 2210A and 2210B to the central portion of the first substrate 2100.

10B, the total change length L 3 + L 4 of the feed path connecting the feed portion 2110 to the first variable output portion 2410 or the fourth variable output portion 2440 is (5). &Quot; (5) "

Figure pat00005

The total change length according to Equation (5) can be expressed by Equation (5) corresponding to the changed length of the feed path along the second strip when the phase changer rotates at the predetermined angle? In the embodiment according to the above- 1].

On the other hand, when the second substrate 2500 is rotated clockwise at a predetermined angle? As shown in Fig. 10C, the feed path of the first variable output portion 2410 is shorter than that of Fig. 10B And the length of the feed path of the fourth variable output unit 2440 is long. Since the change lengths (L 3 + L 4 ) of the respective feed paths are the same, repetitive description will be omitted.

A change in the length of the feed path connecting the second variable output unit 2420 or the third variable output unit 2430 to the feed unit 2110 in the case of FIG. 10B will be described below. 10B, when the second substrate 2500 is rotated in the counterclockwise direction by a predetermined angle (?), The feeding path for connecting the third variable output section 2430 and the feeding section 2110 is a distance 'L as compared with 10 (a) and it is shortened by a distance' L 5 'compared to the second variable output section 2420 and the feed portion (2110), 10 (a) the feed path is a connecting FIG. 5 '. Here, the change length 'L 5 ' is calculated as follows.

Figure pat00006

In Equation (6), the distance of 'r' means the radius to the central portion of the third variable output strip 2300 and the first substrate 2100.

The distance 'L 5 ' according to Equation (6) corresponds to a distance [L 5 ] corresponding to the changed length of the feed path along the third strip when the phase changer rotates at the predetermined angle [ (2). ≪ / RTI >

On the other hand, when the second substrate 2500 is rotated clockwise at a predetermined angle? As shown in FIG. 10C, the feed path of the second variable output section 2420 is shorter than that of FIG. 10B And the length of the feed path of the third variable output unit 2430 is long, and the change length L 5 of each feed path is the same, so repetitive description will be omitted

The second variable output strips 2200A and 2200B and the second variable output strips 2210A and 2210B and the first intermediate strips 2550A and 2550A, 2550B may be at least two times as long as the length of the feed path of the third variable output strip 2300.

Further, in the present embodiment, when the second substrate 2500 rotates at a predetermined angle?, The change of the length of the feed path connecting the variable output section and the feed section is the same as the embodiment according to the above-described FIG. 4 . This means that the phase shifter according to the present embodiment provides the same phase change effect as compared with the embodiment according to the above-described FIG. 4, and at the same time, the volume becomes relatively small, thereby achieving slimming and miniaturization.

On the other hand, Fig. 11 shows driving means for rotating the second substrate 2500 in the phase converter 2000 having the above-described configuration.

11, the driving unit includes a driving unit 3000 and a propelling bar 3100 that performs a linear reciprocating motion by driving the driving unit 3000. The propelling bar 3100 has one end fastened to the propelling bar 3100, And a rotation bar 3200 connected to the connection hole 2590 of the second substrate 2500 and rotating the second substrate 2500 in a linear reciprocating motion of the propelling bar 3100.

The propelling bar 3100 may be reciprocally driven by a driving unit 3000. The driving unit 3000 may be an actuator including a motor. The driving unit 3000 may convert the rotational force of the motor to the linear driving force of the propelling bar when the motor is rotated by the gear assembly or the like, and reciprocally drive the propelling bar 3100.

One end of the rotation bar 3200 may be rotatably coupled to the front end of the propelling bar 3100 by a hinge 3110. The other end of the rotation bar 3200 may be connected to the connection hole 2590 of the second substrate 2500 and a connection bar 3300 may be provided at the other end of the rotation bar 3200 can do. Meanwhile, the rotation bar 3200 is rotatably disposed about a central axis 3210.

The connection bar 3300 of the rotation bar 3200 is guided by a connection hole 2590 of a long hole shape provided in the second substrate 2500 when the rotation bar 3200 rotates, ).

Therefore, when the propelling bar 3100 is driven by the driving unit 3000 as shown in FIGS. 11A and 11B, the rotating bar 3200 is rotated and coupled to the other end of the rotating bar 3200 The second substrate 2500 is rotated to change the length of the feeding path connecting the feeding part 2110 and the output part.

On the other hand, Fig. 12 schematically shows the configuration of an antenna including at least one phase shifter 2000 according to the above-described Fig. 7.

Referring to FIG. 12, the antenna 4000 corresponds to a multi-band antenna. For example, the antenna 4000 may include five radiation elements 4100, 4200, 4300, 4400, and 4500. The antenna 4000 uses dual polarization of ± 45 °, and each radiation element 4100, 4200, 4300, 4400, and 4500 can have two polarizations. Accordingly, one phase shifter 2000 is provided corresponding to one polarized wave, and since the antenna 4000 shown in the figure has two polarizations, two phase shifters 2000A and 2000B . That is, although not shown in the figure, as the number of polarizations used increases, the number of phase shifters provided in the antenna increases proportionally.

The fixed output unit 2500 of the first phase shifting apparatus 2000A is connected to the third radiation device 4100 located at the center of the antenna and includes a first variable output unit 2410 and a fourth variable output unit 2440 Are connected to the first radiation device 4400 and the fifth radiation device 4500, respectively, which are spaced apart from the third radiation device 4100 in the central portion. The second variable output unit 2420 and the third variable output unit 2430 are connected to the second radiation device 4200 and the fourth radiation device 4300 adjacent to the third radiation device 4100 at the center .

Likewise, the fixed output 2500 of the second phase shifter 2000B is coupled to a third radiation device 4100 located at the center of the antenna and includes a first variable output 2410 and a fourth variable output 2440 Are connected to the first radiation device 4400 and the fifth radiation device 4500, respectively, which are spaced apart from the third radiation device 4100 in the central portion. The second variable output unit 2420 and the third variable output unit 2430 are connected to the second radiation device 4200 and the fourth radiation device 4300 adjacent to the third radiation device 4100 at the center .

As a result, the output signal output from the fixed output unit 2500 having the strongest output from the first and second phase shifters 2000A and 2000B is supplied to the third radiation device 4100 located at the center of the antenna 4000 do. The first variable output unit 2410 and the fourth variable output unit 2440 having the largest phase change of the output signal in the first and second phase shifters 2000A and 2000B are connected to the third radiation device 4100 And is connected to the first radiation device 4400 and the fifth radiation device 4500 provided at the edge. Further, the second variable output unit 2420 and the third variable output unit 2430, which provide a phase change of half the phase change of the first variable output unit 2410 and the fourth variable output unit 2440, The second radiation device 4200 and the fourth radiation device 4300 adjacent to the third radiation device 4100 of FIG.

Accordingly, as shown in FIG. 1, according to the phase change of the output signal provided at each of the variable output units of the first and second phase shifters 2000A and 2000B, The radiation beam pattern may be changed such that the radiation beam is emitted from the radiation beam A having the first radiation angle to the radiation beam A 'having the second radiation angle.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. . It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

2000 .. Phase shifter
2100. The first substrate
2200 .. The first variable output strip
2210 .. The second variable output strip
2300 .. Third Variable Output Strip
2500. Second substrate
2550 .. First intermediate strip
2562 .. Second intermediate strip

Claims (16)

A first substrate having a feeding part;
At least one pair of first variable output strips provided on the first substrate and supplied with an output signal from the feed unit;
At least one pair of second variable output strips provided on the first substrate and separated from the first variable output strips and having an output at one end;
A second substrate provided movably relative to the first substrate; And
The first variable output strip and the second variable output strip are electrically connected to each other on the second substrate and the connection length of the first variable output strip and the second variable output strip is changed according to the degree of movement of the second substrate, And at least one first intermediate strip for changing the phase of the first intermediate strip. The method according to claim 1,
Wherein the second substrate is provided so as to be rotatable relative to the first substrate. 3. The method of claim 2,
Wherein the first variable output strip and the second variable output strip have an arc shape. The method of claim 3,
Wherein the first variable output strip and the second variable output strip are provided in parallel on the first substrate. The method of claim 3,
Wherein the first variable output strip and the second variable output strip are overlapped on the first substrate toward the outside. 3. The method of claim 2,
Wherein the first intermediate strip has a different point of contact with the first variable output strip and the second variable output strip depending on the degree of rotation of the second substrate. The method according to claim 6,
The first intermediate strip
A first extension portion and a second extension portion connected to the first variable output strip and the second variable output strip respectively and a bending portion connecting the first extension portion and the second extension portion, Device. 8. The method of claim 7,
Wherein the first extension portion and the second extension portion are provided on the second substrate so as to be parallel to the first variable output strip and the second variable output strip, respectively. The method according to claim 6,
Wherein a contact point between the first extension part and the first variable output strip and a contact point between the second extension part and the second variable output strip are changed according to the degree of rotation of the second substrate. 3. The method of claim 2,
Further comprising at least one third variable output strip disposed on the first substrate and having output portions at both ends thereof. 11. The method of claim 10,
And a second intermediate strip provided on the second substrate and electrically connected to the feeder and having a contact point along the third variable output strip according to rotation of the second substrate. Conversion device. 12. The method of claim 11,
The phase change by the first variable output strip, the second variable output strip and the first middle strip is at least twice the phase change by the third variable output strip when the second substrate rotates at a predetermined angle To the antenna phase shifter. 13. The method of claim 12,
Wherein the first variable output strip and the second variable output strip have an arc shape and are provided on the first substrate in parallel,
The distance between the rotation center of the second substrate and the third variable output strip is equal to the distance from the center of rotation of the second substrate to the center of the separation distance between the first variable output strip and the second variable output strip. Gt; The method according to claim 1,
Further comprising at least one fixed output strip provided on the first substrate, the fixed output strip being electrically connected to the feed section and having an output section. The method according to claim 1,
A housing that accommodates the first substrate, the second substrate is rotatably provided, and the upper portion of the housing is opened;
A spring member provided on the second substrate; And
And a cover for closing the open upper portion of the housing. An antenna comprising at least one antenna phase shifting device according to any one of claims 1 to 15.
KR20130079089A 2013-07-05 2013-07-05 Antenna phase shifting device and antenna having the same KR20150005305A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190036231A (en) * 2017-09-27 2019-04-04 삼성전자주식회사 Antenna apparatus including phase shifter
KR102016090B1 (en) * 2018-08-28 2019-08-30 주식회사 에이치에스에이디씨 Arc type phase shifter comprising
WO2020190281A1 (en) * 2019-03-19 2020-09-24 Hewlett-Packard Development Company, L.P. Overvoltage protection for electric motor drivers
WO2022242864A1 (en) * 2021-05-20 2022-11-24 Telefonaktiebolaget Lm Ericsson (Publ) Unsymmetrical differential phase shifter, a phase shifter arrangement and a mobile communication antenna comprising the phase shifter arrangement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190036231A (en) * 2017-09-27 2019-04-04 삼성전자주식회사 Antenna apparatus including phase shifter
WO2019066308A1 (en) * 2017-09-27 2019-04-04 삼성전자주식회사 Antenna device including phase shifter
US11349184B2 (en) 2017-09-27 2022-05-31 Samsung Electronics Co., Ltd. Phase shifter including first and second boards having rails thereon and configured to be rotatable with respect to each other and an antenna formed therefrom
KR102016090B1 (en) * 2018-08-28 2019-08-30 주식회사 에이치에스에이디씨 Arc type phase shifter comprising
WO2020190281A1 (en) * 2019-03-19 2020-09-24 Hewlett-Packard Development Company, L.P. Overvoltage protection for electric motor drivers
WO2022242864A1 (en) * 2021-05-20 2022-11-24 Telefonaktiebolaget Lm Ericsson (Publ) Unsymmetrical differential phase shifter, a phase shifter arrangement and a mobile communication antenna comprising the phase shifter arrangement

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