WO2018159972A1 - Déphaseur et dispositif de communication comprenant ce dernier - Google Patents

Déphaseur et dispositif de communication comprenant ce dernier Download PDF

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Publication number
WO2018159972A1
WO2018159972A1 PCT/KR2018/002362 KR2018002362W WO2018159972A1 WO 2018159972 A1 WO2018159972 A1 WO 2018159972A1 KR 2018002362 W KR2018002362 W KR 2018002362W WO 2018159972 A1 WO2018159972 A1 WO 2018159972A1
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WO
WIPO (PCT)
Prior art keywords
coupling
transmission line
slot
phase shifter
degrees
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Application number
PCT/KR2018/002362
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English (en)
Korean (ko)
Inventor
성원모
박용현
이광호
Original Assignee
주식회사 이엠따블유
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Application filed by 주식회사 이엠따블유 filed Critical 주식회사 이엠따블유
Publication of WO2018159972A1 publication Critical patent/WO2018159972A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/16—Networks for phase shifting
    • H03H11/20—Two-port phase shifters providing an adjustable phase shift

Definitions

  • the present invention relates to a communication device including a phase shifter and a phase shifter, and more particularly, to a phase shifter capable of adjusting an angle of a beam emitted from a base station antenna and a communication device including the same.
  • the communication environment is variable such that the user connection density varies by region or time, and the operator side adjusts the beam pattern angle of the base station antenna to provide an optimal service in response to such various situations.
  • the so-called phase shifter refers to a device for adjusting the angle of the beam radiated from the base station antenna by varying the phase of the radio signal by the power distribution principle.
  • the beam radiated from the base station antenna may be tilted up or down by a phase shifter, and a service provider may use the same to provide an optimal service in various communication environments.
  • the phase of the radio signal is varied by rotating the coupling variable or controlling the power distribution ratio of the coupling variable, and the transmission line merely plays a role of power transmission. Accordingly, in the related art, there is a problem in that a loss variation of each band at each output terminal of the phase shifter, that is, a power distribution ratio variation between the low frequency band and the high frequency band is large. In this case, the sophistication of the phase shifter is degraded, which may degrade the performance and quality of the base station antenna. In addition, in the prior art, there was a physical difficulty in changing the transmission line itself, and thus there was a limit in extending the bandwidth for smooth signal transmission and reception.
  • Patent Document 0001 Korean Laid-Open Patent Publication No. 10-2010-0045751 (2010.05.04)
  • an object of the present invention is to provide a phase shifter to minimize the loss variation for each band of the output stage.
  • another object of the present invention is to provide a communication device including a phase shifter for minimizing loss variation for each band of each output terminal.
  • Phase shifter is connected to one end of the input terminal is a wireless signal is input, the other end is connected to one of the plurality of output terminals for outputting the wireless signal,
  • a plurality of transmission lines and coupling points formed between the other end of the fixed line having a coupling point formed thereon, spaced apart from each other on the upper side of the fixed line, and having an arc shape, each end of which is connected to a different output end;
  • a coupling variabler configured to vary the phase of the wireless signal by coupling and feeding the plurality of transmission lines while rotating within a set angle range.
  • Each of the plurality of transmission lines is formed with a plurality of slits extending in an inward direction from an outer direction of the transmission line.
  • each of the plurality of transmission lines may be further formed with a slot extending in a direction parallel to the extending direction of the transmission line.
  • the slot may include a first slot portion formed in the outer direction of the arc shape of the transmission line.
  • the first slot portion may include a plurality of first sub slots that are stacked and spaced apart from each other by a predetermined interval.
  • the slot may include a second slot portion formed in the inner direction of the arc shape of the transmission line.
  • the second slot portion may include a plurality of second sub slots which are stacked and spaced apart from each other by a predetermined interval.
  • the slit is a first left slit formed at a point spaced 35 degrees to 45 degrees counterclockwise from the center of the transmission line, 15 degrees counterclockwise from the center of the transmission line
  • the plurality of transmission lines may include a first transmission line and a second transmission line.
  • the coupling variable may include a first coupling input unit for coupling feeding of the first transmission line and a second coupling input unit for coupling feeding of the second transmission line.
  • the coupling variable may be formed in the slot along the extending direction of the coupling variable.
  • the phase shifter may further include an insulating film seated on the plurality of transmission lines.
  • the coupling variable may be seated on the insulating layer.
  • a communication device includes a base station antenna having one or more phase shifters and a plurality of radiating elements connected to the phase shifters.
  • the plurality of radiating elements may be formed on the front surface of the base station antenna.
  • the phase shifter may be formed on the rear surface of the base station antenna.
  • the present invention by forming a plurality of arc-shaped slots in the transmission line, it is possible to extend the operating frequency band of the base station antenna and reduce the loss variation for each band of each output terminal of the phase shifter.
  • the physical structure of the transmission line unlike the conventional phase shifter, it is possible to vary the impedance of the phase shifter and minimize the difference in signal magnitude values at the output stage.
  • a plurality of slits may be formed in at least a portion of each transmission line to finely adjust an operating frequency band of the base station antenna.
  • FIG. 1 is a plan view showing a phase shifter according to an embodiment of the present invention.
  • FIG. 2 is a plan view illustrating a slot according to an embodiment of the present invention.
  • FIG. 3 is a plan view illustrating a coupling variable according to an embodiment of the present invention.
  • FIG. 4 is a plan view illustrating a slot according to an embodiment of the present invention.
  • FIG. 5 is a plan view illustrating a slot according to an embodiment of the present invention.
  • FIG. 6 is a plan view illustrating a phase shifter according to an embodiment of the present invention.
  • FIG. 7 is a plan view illustrating a slot according to an embodiment of the present invention.
  • FIG. 8 is a plan view illustrating a slot according to an embodiment of the present invention.
  • FIG. 9 is a plan view illustrating a slot according to an embodiment of the present invention.
  • FIG. 10 is an exemplary diagram illustrating a process of rotating a coupling variable of a phase shifter according to an embodiment of the present invention.
  • FIG. 11 is a perspective view illustrating a communication device and a base station antenna according to an embodiment of the present invention.
  • FIG. 12 is a perspective view illustrating a phase shift module according to an embodiment of the present invention.
  • FIG. 13 is an exploded perspective view illustrating a phase shift module according to an embodiment of the present invention.
  • FIG. 14 is a side view illustrating a phase shift module according to an embodiment of the present invention.
  • FIG. 15 is a graph illustrating loss variation for each band of output stages of a conventional phase shifter.
  • FIG. 16 is a graph illustrating loss variation for each band of each output terminal of the phase shifter according to the exemplary embodiment of the present invention.
  • 1 is a plan view showing a phase shifter according to an embodiment of the present invention.
  • 2 is a plan view illustrating a slot according to an embodiment of the present invention.
  • 3 is a plan view illustrating a coupling variable according to an embodiment of the present invention.
  • the base station antenna includes five radiating elements
  • the phase shifter 100 includes one input terminal 162 and five output terminals 164, 166, 168, 170, and 172. It is assumed to be provided.
  • the first output terminal 164 is connected to the first radiating element of the base station antenna via a cable
  • the second output terminal 166 is connected to the second radiating element of the base station antenna via a cable
  • the third output terminal 168 is assumed to be provided.
  • phase shifter 100 Is connected to the third radiating element of the base station antenna via a cable, and the fourth output terminal 170 is connected to the fourth radiating element of the base station antenna via a cable, and the fifth output end 172 is connected to the third radiating element of the base station antenna via a cable. It may be connected with the fifth radiating element.
  • a phase shifter 100 may include a fixed line 102, a plurality of transmission lines 104 and 106, a substrate 110, and a coupling variable ( 120).
  • the fixed line 102 has one end connected to an input terminal 162 through which a wireless signal is input, and the other end is connected to one of a plurality of output terminals from which the wireless signal is output, for example, the first output terminal 164.
  • the fixed line 102 may be formed on the substrate 110 and may be made of a conductive material.
  • the fixed line 102 may be formed of a combination of a plurality of straight portions and curved portions, and at least one of each of the straight portions may have a different thickness or extend in different directions. have.
  • a coupling point 102a may be formed between one end and the other end of the fixed line 102.
  • the coupling variable 120 may be formed at the coupling point 102a, and the plurality of transmission lines 104 while rotating within a set angle range (for example, in the range of 45 to 180 degrees). 106) may be coupled to each other.
  • the electrical length from the current position of the coupling variable 120 to the corresponding radiating element may be changed so that the phase of the wireless signal may be varied.
  • fitting holes 102b and feeding points 120a having a predetermined size may be formed in the coupling point 102a and the coupling variable 120, respectively, and a rotating shaft (not shown) may be formed in the fitting hole 102b. This can be inserted to rotate the coupling variable 120.
  • the transmission lines 104 and 106 are lines for transmitting a radio signal to an output terminal, and may include, for example, a first transmission line 104 and a second transmission line 106.
  • the number of transmission lines 104 and 106 is not limited thereto, and the number of transmission lines 104 and 106 may include the number of output terminals 164, 166, 168, 170, and 172 or the radiating elements provided in the base station antenna. It may vary depending on the number of.
  • the first transmission line 104 and the second transmission line 106 may be formed on the substrate 110 and may be made of a conductive material. In this case, the first transmission line 104 and the second transmission line 106 may be formed spaced apart from each other on the upper side of the fixed line (102). In addition, the first transmission line 104 and the second transmission line 106 may be formed in an arc shape and both ends may be connected to different output terminals, respectively. As an example, one end of the first transmission line 104 may be connected to the second output terminal 166 and the other end of the first transmission line 104 may be connected to the third output terminal 168. 170, and the other end thereof may be connected to the fifth output terminal 172.
  • a plurality of arc-shaped slots 140 may be formed in each of the first transmission line 104 and the second transmission line 106 along the extending direction of the transmission lines 104 and 106.
  • Slot 140 is to extend the operating frequency band of the base station antenna and to reduce the loss deviation for each band of the output stage (164, 166, 168, 170, 172) of the phase shifter 100, each transmission line (104, 106) It may be formed in plural. As illustrated in FIGS. 1 and 2, the plurality of slots 140 may be stacked on the transmission lines 104 and 106 at predetermined intervals in one direction.
  • each of the transmission lines 104 and 106 may include a first slot part 140a in which a plurality of first sub slots are stacked and a second slot part 104b in which a plurality of second sub slots are stacked.
  • the first slot part 140a may include three first sub slots
  • the second slot part 140b may include three second sub slots.
  • the second slot part 140b may be formed to be spaced apart from the first slot part 140a by a predetermined interval.
  • the number, thickness, size, length, and the like of the slots 140 for each transmission line 104 and 106 shown in FIGS. 1 and 2 may vary depending on the frequency band of a signal to be transmitted and received by the base station antenna.
  • the slot 140 includes a first slot part 140a in which a plurality of first sub slots are stacked and a second slot part 104b in which a plurality of second sub slots are stacked. It can be formed in a structure suitable for the band (1700hz to 2700hz).
  • a plurality of slits 150 and slit may be formed in at least a portion of each transmission line 104 or 106.
  • the slit 150 may have a structure extending from the outer direction of the transmission line in the inner direction.
  • the slit 150 is a first left slit 151 formed at a point spaced 35 degrees to 45 degrees counterclockwise from the center of the transmission line, 15 degrees to 25 degrees counterclockwise from the center of the transmission line
  • a second left slit 152 formed at a spaced point, a first right slit 153 formed at a point 15 to 25 degrees clockwise from a center of the transmission line, and a counter clock from a center of the transmission line
  • It may include a second right slit 154 formed at a point spaced 35 to 45 degrees in the direction.
  • the slit 150 is for finely adjusting the operating frequency band of the base station antenna, and may be formed on at least a portion of each transmission line 104, 106. As illustrated in FIGS. 1 and 2, four slits 150 may be formed in the first transmission line 104 and the second transmission line 106 at predetermined intervals. In this case, the slit 150 may be formed to have a predetermined thickness, for example, at a predetermined angle (for example, 80 degrees to 100 degrees) with the extending direction of the slot 140.
  • the predetermined thickness is, for example, the stacking thickness T of the plurality of slots included in the first slot portion 140a (or the second slot portion 140b) (that is, the thickness of the plurality of slots and the plurality of slots). Corresponding to a length including a distance between the two slots). In this case, a reduction effect of the band-specific loss variation of each output terminal 164, 166, 168, 170, and 172 of the phase shifter 100 may be maximized.
  • the slits 150 have been described by way of example in which four slits are constructed.
  • the present invention is not limited thereto, and the number of slits may be configured in various numbers as necessary.
  • the substrate 110 is a plate on which the fixed line 102 and the transmission lines 104 and 106 are formed, and may be, for example, a printed circuit board (PCB).
  • PCB printed circuit board
  • Coupling variable 120 is coupled to feed the plurality of transmission lines (104, 106) while rotating within a set angle range to vary the phase of the radio signal.
  • the coupling variable 120 may be formed at the coupling point 102a to rotate within a set angle range.
  • fitting holes 102b and feeding points 120a having a predetermined size may be formed in the coupling point 102a and the coupling variable 120, respectively, and a rotation shaft may be inserted in the fitting hole 102b to couple the coupling points 102a and the coupling variable 102.
  • the variable adjuster 120 may be rotated.
  • the coupling variable 120 may include a first coupling input unit 120b and a second coupling input unit 120c.
  • the first coupling input unit 120b and the second coupling input unit 120c may be made of a conductive material.
  • the first coupling input unit 120b may couple and feed the first transmission line 104
  • the second coupling input unit 120c may couple and feed the second transmission line 106.
  • the first coupling input unit 120b may be disposed at a position corresponding to the first transmission line 104
  • the second coupling input unit 120c may be spaced apart from the first coupling input unit 120b by a predetermined distance.
  • And may be disposed at a position corresponding to the second transmission line 106.
  • the power distribution by the first coupling input unit 120b and the second coupling input unit 120c has the effect of increasing the operating frequency band of the base station antenna as compared with the power distribution by one coupling input unit.
  • the coupling variabler 120 may extend to the upper side of the phase shifter 100, that is, the first transmission line 104 and the second transmission line 106.
  • the slot 120d may be formed along the extending direction of the coupling variable 120. The slot 120d serves to extend the operating frequency band of the base station antenna.
  • an insulating film (not shown) may be formed on each of the transmission lines 104 and 106, and the coupling variable 120 may be seated on the insulating film.
  • the insulating layer serves to prevent unwanted waves in the performance of passive inter modulation modulation (PIMD).
  • the ground hole 130 is a configuration for stably grounding the cables connected to the input terminal 162 and the output terminals 164, 166, 168, 170, and 172 as much as possible, and the ground area is reduced due to the ground hole 130. By enlarging, the power of the radio signal can be stably transmitted to each transmission line (104, 106).
  • the operating frequency band of the base station antenna is extended and each output terminal 164 of the phase shifter 100 is expanded.
  • 166, 168, 170, and 172 can reduce the loss deviation for each band.
  • the impedance of the phase shifter 100 is varied and the output stage (164, 166, 168, The difference in signal magnitude values at 170 and 172 may be minimized.
  • FIG. 4 is a plan view illustrating a slot according to an embodiment of the present invention.
  • the slot according to the present exemplary embodiment is substantially the same as the slot described with reference to FIGS. 1 and 2 except that the second slot part 140b is not formed. Therefore, like reference numerals refer to like elements, and repeated descriptions thereof will be omitted.
  • the first transmission line 104 and the second transmission line 106 may include only the first slot part 140a in which a plurality of first sub slots are stacked, and the second slot described above.
  • the portion 140b may not be formed.
  • the operating frequency band of the base station antenna may vary slightly.
  • FIG. 5 is a plan view illustrating a slot according to an embodiment of the present invention.
  • the slot according to the present exemplary embodiment is substantially the same as the slot described with reference to FIGS. 1 and 2 except that the first slot part 140a is not formed. Therefore, like reference numerals refer to like elements, and repeated descriptions thereof will be omitted.
  • the first transmission line 104 and the second transmission line 106 may include only the second slot part 140b in which a plurality of second sub slots are stacked, and the first slot described above.
  • the portion 140a may not be formed.
  • the operating frequency band of the base station antenna may vary slightly.
  • FIG. 6 is a plan view illustrating a phase shifter according to an embodiment of the present invention.
  • 7 is a plan view illustrating a slot according to an embodiment of the present invention.
  • phase shifter according to the present exemplary embodiment is substantially the same as the slot described with reference to FIGS. 1 and 2 except for the shape of the first slot part 140a and the shape of the second slot part 140b. Therefore, like reference numerals refer to like elements, and repeated descriptions thereof will be omitted.
  • the phase shifter 100 may include a fixed line 102, a plurality of transmission lines 104 and 106, a substrate 110, and a coupling variable ( 120).
  • the slot 140 is formed in the arc-shaped inner direction of the first slot portion 140a and the plurality of transmission lines 104 and 106 formed in an outer direction of the arc shape of the plurality of transmission lines 104 and 106.
  • the second slot portion 140b is included.
  • the slot 140 according to the present exemplary embodiment includes a first slot part 140a and a second slot part respectively formed as one slot. 140b.
  • the slot 140 according to the present exemplary embodiment may be formed of a first slot part 140a and a second slot part 140b each formed as one slot, and may have a structure suitable for low frequency bands (700hz to 100hz). .
  • FIG. 8 is a plan view illustrating a slot according to an embodiment of the present invention.
  • the slot according to the present exemplary embodiment is substantially the same as the slot described with reference to FIGS. 6 and 7 except that the second slot part 140b is not formed. Therefore, like reference numerals refer to like elements, and repeated descriptions thereof will be omitted.
  • the first transmission line 104 and the second transmission line 106 may include only the first slot portion 140a formed as one slot, and the second slot portion 140b described above. May not be formed.
  • the operating frequency band of the base station antenna may vary slightly.
  • FIG. 9 is a plan view illustrating a slot according to an embodiment of the present invention.
  • the slot according to the present embodiment is substantially the same as the slot described with reference to FIGS. 6 and 7 except that the first slot part 140a is not formed. Therefore, like reference numerals refer to like elements, and repeated descriptions thereof will be omitted.
  • the first transmission line 104 and the second transmission line 106 may include only the second slot portion 140b formed as one slot, and the first slot portion 140a described above. May not be formed.
  • the operating frequency band of the base station antenna may vary slightly.
  • the coupling variable 120 may vary the phase of the wireless signal by coupling and feeding the plurality of transmission lines 104 and 106 while rotating within the set angle range.
  • the coupling variable 120 is rotated clockwise in a state of being disposed at a reference position (center position of the coupling variable 120 of FIG. 10) (the coupling variable 120 of FIG. 6). ) Or rotate counterclockwise (left position of coupling variable 120 of FIG. 6).
  • the coupling variable 120 rotates clockwise
  • the beam emitted from the base station antenna tilts downward (eg, beam angle: 0 degrees ⁇ 10 degrees ⁇ 20 degrees ⁇ 30 degrees ⁇ 40 degrees .. )
  • the beam emitted from the base station antenna tilts upward when the coupling variable 120 is rotated counterclockwise (e.g., beam angle: 40 degrees ⁇ 30 degrees ⁇ 20 degrees ⁇ 10 degrees ⁇ 0 Can be ).
  • the coupling variable variable 120 is the first left slit 151 formed at a point spaced 35 to 45 degrees counterclockwise from the center of the transmission line according to the rotation angle, the center of the transmission line A second left slit 152 formed at a point spaced 15 degrees to 25 degrees counterclockwise from the first left slit 152 formed at a point spaced 15 degrees to 25 degrees clockwise from a center of the transmission line. ) And the second right slit 154 formed at a point spaced 35 degrees to 45 degrees counterclockwise from the center of the transmission line, so that the operating frequency band of the base station antenna can be finely adjusted. I can adjust it.
  • the communication device 500 includes a base station antenna 300 and a phase shift module 400.
  • 11 is a perspective view illustrating a communication device and a base station antenna according to an embodiment of the present invention.
  • 12 is a perspective view illustrating a phase shift module according to an embodiment of the present invention.
  • 13 is an exploded perspective view illustrating a phase shift module according to an embodiment of the present invention.
  • 14 is a side view illustrating a phase shift module according to an embodiment of the present invention.
  • the base station antenna 300 may include a plurality of radiating elements 302, 304, 306, 308, 310, and each radiating element 302, 304, 306, 308, 310 may include a base station antenna. It is formed on the front of the 300 may emit a beam.
  • the base station antenna 300 has been described as having five radiating elements 302, 304, 306, 308, 310, but this is only an example and the radiating elements 302, 304, 306, 308, The number of 310 may be more or less than this.
  • phase shift module 400 illustrated in FIGS. 12 to 14 is formed on the rear surface of the base station antenna 300, and includes a plurality of phase shifters 100 and 200, a first gear 402, and a rod 404. rod).
  • the second gear 406, the support member 410, and the fixing member 412 may be included.
  • the phase shifters 100 and 200 perform the same functions as the phase shifters shown in FIGS. 1 to 6.
  • the phase shift module 400 may include a first phase shifter 100 and a second phase shifter 200.
  • the phase shift module 400 of the base station antenna 300 may be compared with when only one phase shifter is used. Performance can be improved.
  • the first phase shifter 100 and the second phase shifter 200 may be disposed in parallel with each other, and may be connected to the plurality of radiating elements 302, 304, 306, 308, and 310. Specifically, the first output terminal 164 of the first phase shifter 100 and the second phase shifter 200 is connected to the first radiating element 302 of the base station antenna 300 through a cable (not shown).
  • the second output terminal 166 of the first phase shifter 100 and the second phase shifter 200 is connected to the second radiating element 304 of the base station antenna 300 through a cable, and has a first phase.
  • the third output terminal 168 of the displacer 100 and the second phase shifter 200 is connected to the third radiating element 306 of the base station antenna 300 through a cable, the first phase shifter 100
  • a fourth output terminal 170 of the second phase shifter 200 is connected to the fourth radiating element 308 of the base station antenna 300 through a cable, and the first phase shifter 100 and the second phase shifter.
  • the fifth output terminal 172 of the crisis 200 may be connected to the fifth radiating element 310 of the base station antenna 300 through a cable.
  • the phase shifters 100 and 200 may adjust angles of beams emitted from the radiating elements 302, 304, 306, 308, and 310.
  • the area of the second phase shifter 200 (or the substrate area of the second phase shifter 200) is equal to the area of the first phase shifter 100 (or It may be larger than the substrate area of the first phase shifter 100, in which case the operator's convenience in the manufacturing process or handling process of the communication module 500 can be improved.
  • the first gear 402 is a gear disposed between the plurality of phase shifters 100 and 200 and may be connected to the coupling variable 120 of each phase shifter 100 and 200.
  • a fitting hole 102b and a feeding point 120a having a predetermined size may be formed in the coupling point 102a and the coupling variable 120, respectively, and the rotation shaft may be formed in the fitting hole 102b. 408 may be accommodated.
  • the rotation shaft 408 may extend to the first phase shifter 100 and the second phase shifter 200, respectively, and may be fixed to the fitting hole 102b.
  • the first gear 402 may rotate in conjunction with the second gear 406.
  • the first gear 402 is engaged with the second gear 406 as the second gear 406 rotates, thereby coupling the first phase shifter 100 and the second phase shifter 200.
  • Each of the variables 102 can be rotated simultaneously within a set angle range.
  • the first gear 402 may be, for example, a spur gear and the second gear 406 may be, for example, a worm gear.
  • the area occupied by the first gear 402 and the second gear 406 is minimized to simplify the structure of the phase shift module 400, thereby facilitating the manufacture of the miniaturized phase shift module 400.
  • the gear ratio between the first gear 402 and the second gear 406 for example, the size (or number) of the protrusions (or teeth) of the first gear 402 and the protrusions of the second gear 406 ( Alternatively, the ratio of the size (or number) may be adjusted to more broadly or more finely adjust the phase shift width of the radio signal.
  • the first gear 402 and the second gear 406 are configured to be detachable and replaceable with the first gear 402 or the second gear 406 having projections of different sizes (or numbers). Do.
  • the rod 404 is a member manipulated by a user to rotate the coupling variable 102, and may extend in one direction from one side of the first gear 402.
  • the rod 404 may, for example, be in the shape of a rod and may serve as the axis of rotation of the second gear 406.
  • the user can rotate in a clockwise or counterclockwise direction while holding the rod 404 by hand, in which case the second gear 406 rotates with the rod 404.
  • the second gear 406 includes a hollow portion through which the rod 404 penetrates and engages with the first gear 402 while rotating with the rod 404.
  • the second gear 406 may be seated on the outer surface of the rod 404, and may rotate together with the rod 404 when the rod 404 rotates according to a user's manipulation.
  • the first gear 402 may rotate in conjunction with the second gear 406, and as the second gear 406 rotates, the first gear 402 meshes with the second gear 406 to form a first phase shifter.
  • Each of the coupling variable 102 of the 100 and the second phase shifter 200 may be simultaneously rotated within a set angle range.
  • the support member 410 is formed on the substrate of the second phase shifter 200 to support the rod 404.
  • the through member 410 may have a through hole 410a through which the rod 404 penetrates.
  • a plurality of support members 410 may be formed spaced apart from the substrate of the second phase shifter 200 by a predetermined interval. Accordingly, the rod 404 may pass through the through hole 410a and may be supported by the plurality of support members 410 to stably rotate.
  • the fixing member 412 fixes the coupling variable 120 of the first phase shifter 100 and the coupling variable 120 of the second phase shifter 200 to each other.
  • the fixing member 412 may be fixed to an end of the coupling variabler 120 of the first phase shifter 100 and an end of the coupling variabler 120 of the second phase shifter 200, respectively. Accordingly, the coupling variable 120 of the first phase shifter 100 and the second phase shifter 200 is simultaneously rotated as the first gear 402 rotates.
  • the first gear 402, the rod 404, and the second gear 406 interoperate with each other, thereby providing a plurality of phase shifters 100 and 200. It can be integrated in an easy way.
  • the structure of the phase shift module 500 may be simplified to reduce the unit cost of the phase shift module 500, and the user may adjust the angle of the beam emitted from the base station antenna 300 in a simpler manner.
  • FIG. 15 is a graph illustrating loss variation for each band of output stages of a conventional phase shifter.
  • FIG. Figure 15 shows the loss variation for each band of the third output stage of the conventional phase shifter.
  • the loss deviation between the low frequency band and the high frequency band that is, the power distribution ratio deviation between the high frequency band and the low frequency band is large.
  • FIG. 16 is a graph illustrating loss variation for each band of each output terminal of the phase shifter according to the exemplary embodiment of the present invention.
  • FIG. 16 illustrates a band-specific loss variation of the third output terminal 168 of the phase shifters 100 and 200 according to the exemplary embodiments of the present invention.
  • the loss deviation between the low frequency band and the high frequency band that is, the power distribution ratio deviation between the high frequency band and the low frequency band is significantly improved compared to FIG. 15.
  • the first slot portion (140a) is formed in each of the transmission lines (104, 106) of the low frequency band (700hz to 100hz) as one slot And a slot 140 including the second slot part 140b, and a plurality of first sub slots 140a and a plurality of second sub slots in which a plurality of first sub slots are stacked in a high frequency band (1700 hz to 2700 hz).
  • the slot 140 including the second slot part 104b in which the slots are stacked is formed. In other words, the width of the slot is reduced as it moves to the high frequency band, thereby reducing the loss deviation between the low frequency band and the high frequency band, that is, the power distribution ratio deviation between the high frequency band and the low frequency band.
  • the present invention by forming a plurality of arc-shaped slots in the transmission line, it is possible to extend the operating frequency band of the base station antenna and reduce the loss variation for each band of each output terminal of the phase shifter.
  • the physical structure of the transmission line unlike the conventional phase shifter, it is possible to vary the impedance of the phase shifter and minimize the difference in signal magnitude values at the output stage.
  • a plurality of slits may be formed in at least a portion of each transmission line to finely adjust an operating frequency band of the base station antenna.
  • phase shifter 102 fixed line
  • first transmission line 106 second transmission line
  • 140b second slot portion 150, 120d: slit
  • base station antenna 302 first radiating element
  • phase shift module 402 first gear

Landscapes

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

Abstract

La présente invention concerne un déphaseur comprenant : une ligne fixe dont une extrémité est connectée à une borne d'entrée, à laquelle un signal sans fil est appliqué, et l'autre extrémité est connectée à une borne d'une pluralité de bornes de sortie, à laquelle le signal sans fil est délivré, et qui possède un point de couplage formé entre lesdites extrémités; une pluralité de lignes de transmission espacées les unes des autres sur la ligne fixe et formées arquées, les deux extrémités desdites lignes de transmission étant respectivement connectées aux différentes bornes de sortie; et un changeur de couplage formé au niveau du point de couplage et qui modifie la phase du signal sans fil en soumettant chaque ligne de la pluralité de lignes de transmission à un couplage d'alimentation tout en tournant dans une plage d'angle définie. La pluralité de lignes de transmission présentent chacune une pluralité de fentes partant de l'extérieur des lignes de transmission vers l'intérieur.
PCT/KR2018/002362 2017-02-28 2018-02-27 Déphaseur et dispositif de communication comprenant ce dernier WO2018159972A1 (fr)

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CN111600099A (zh) * 2019-02-20 2020-08-28 华为技术有限公司 移相器及电调天线

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CN111600099B (zh) * 2019-02-20 2021-10-26 华为技术有限公司 移相器及电调天线
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CN111585023B (zh) * 2020-05-06 2021-09-28 武汉虹信科技发展有限责任公司 移相器及电调基站天线

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