CN116315680A - Phase shifter and antenna - Google Patents
Phase shifter and antenna Download PDFInfo
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- CN116315680A CN116315680A CN202310069344.7A CN202310069344A CN116315680A CN 116315680 A CN116315680 A CN 116315680A CN 202310069344 A CN202310069344 A CN 202310069344A CN 116315680 A CN116315680 A CN 116315680A
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- turntable
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention relates to the technical field of communication equipment, and provides a phase shifting device and an antenna, wherein the phase shifting device comprises: the device comprises a turntable, a phase shifting substrate and a driving assembly; the turntable is rotationally arranged on the phase-shifting substrate, an arc-shaped feed line is arranged on the phase-shifting substrate, and a coupling line is arranged on the turntable; the driving assembly is in transmission connection with the turntable, the turntable can rotate relative to the phase-shifting substrate under the driving of the driving assembly, and the coupling circuit can move along the arc-shaped feed circuit and is in coupling connection with the arc-shaped feed circuit. The rotary table can rotate relative to the fixed phase-shifting substrate under the drive of the drive component, and the distance between the main feed port of the main feed line and the feed port of the arc-shaped feed line is changed along with the relative movement of the rotary table and the phase-shifting substrate, so that the phase adjustment is realized. Compared with the sliding device of the phase shifter in the prior art, the transmission efficiency is improved to a certain extent, the precision is high, and the electrical index precision of the base station antenna can be improved.
Description
Technical Field
The present invention relates to the field of communications devices, and in particular, to a phase shifting device and an antenna.
Background
Along with the development of base station antenna technology, antennas are developed towards multiple frequency miniaturization and high efficiency, and requirements on control precision and size are more and more stringent. The phase shifter is used as a key component for antenna downtilt adjustment, and has higher requirements on transmission accuracy.
At present, most of transmission modes of the sliding device of the phase shifter are that rotation of a motor is firstly converted into horizontal sliding of a pull rod, and then the horizontal sliding of the pull rod is converted into curve motion of a PCB sliding sheet, and the structure has the following defects: each time of rotation and sliding conversion has transmission efficiency loss, threads cannot be completely matched, gaps are necessarily formed, and meanwhile, return stroke difference exists, so that accumulated errors are large, and transmission precision is reduced. In addition, the multiple motion conversion between the phase shifter sliding device and the motor transmission inevitably has the problems of more parts and complex structure, and the assembly is mostly complicated, so that the requirement of small size cannot be met.
Disclosure of Invention
The invention provides a phase shifter and an antenna, which are used for solving the problems that most of transmission modes of the existing phase shifter sliding device have low transmission precision, more parts and complicated assembly.
The invention provides a phase shifting device, comprising: the device comprises a turntable, a phase shifting substrate and a driving assembly;
the rotary table is rotationally arranged on the phase-shifting substrate, an arc-shaped feed line is arranged on the phase-shifting substrate, and a coupling line is arranged on the rotary table;
the driving assembly is in transmission connection with the turntable, the turntable can rotate relative to the phase-shifting substrate under the driving of the driving assembly, and the coupling circuit can move along the arc-shaped feed circuit and is in coupling connection with the arc-shaped feed circuit.
According to the phase shifting device provided by the invention, one of the inner periphery and the outer periphery of the rotary table is provided with the tooth part, the driving assembly comprises a driving motor and an output gear, the driving motor is in transmission connection with the output gear, and the output gear is in meshed connection with the tooth part.
According to the phase shifting device provided by the invention, the rotary table comprises a rotary table body and an installation part, the tooth part is arranged on the inner periphery of the rotary table body, the installation part is formed by extending the outer periphery of the rotary table body towards the direction deviating from the center of the rotary table body, the installation part is provided with an installation position, and the installation position is provided with the coupling circuit; the rotary table body and the phase-shifting substrate can form an accommodating space, and the driving motor is arranged in the accommodating space.
According to the phase shifting device provided by the invention, the mounting part comprises the switching part and the horizontal part, the switching part is formed by bending and extending the periphery of the turntable body, the switching part extends towards the center direction deviating from the turntable body to form the horizontal part, and the horizontal part is provided with the mounting position; the plane where the horizontal part is located and the plane where the turntable body is located have a height difference, so that the accommodating space can be formed between the turntable body and the phase-shifting substrate.
According to the phase shifting device provided by the invention, the turntable body, the switching part and the horizontal part are integrally formed.
According to the phase shifting device provided by the invention, the rotary table comprises a rotary table body and an installation part, the tooth part is arranged on the periphery of the rotary table body, the installation part is formed by extending the inner periphery of the rotary table body towards the center direction of the rotary table body, the installation part is provided with an installation position, and the installation position is provided with the coupling circuit; and a gap can be formed between the turntable body and the phase-shifting substrate.
According to the phase shifting device provided by the invention, the mounting part comprises the switching part and the horizontal part, the switching part is formed by bending and extending the inner periphery of the turntable body, the switching part extends towards the center direction of the turntable body to form the horizontal part, and the horizontal part is provided with the mounting position; the level part is arranged on the plane of the turntable body, and the level part is arranged on the plane of the turntable body, so that the gap can be formed between the turntable body and the phase-shifting substrate.
According to the phase shifting device provided by the invention, a plurality of arc-shaped feed lines are arranged, and the arc-shaped feed lines are circumferentially arranged; the plurality of coupling lines are in one-to-one correspondence with the plurality of arc feed lines.
According to the phase shifting device provided by the invention, the arc-shaped main feeder line is further arranged on the phase shifting substrate, and the coupling line can move along the arc-shaped main feeder line and is coupled and connected with the arc-shaped main feeder line under the condition that the turntable rotates relative to the phase shifting substrate.
The invention also provides an antenna comprising the phase shifting device.
According to the phase shifting device and the antenna, the turntable can rotate relative to the fixed phase shifting substrate under the drive of the driving assembly, and the distance between the main feed port of the main feed line and the feed port of the arc feed line is changed along with the relative movement of the turntable and the phase shifting substrate, so that the phase adjustment is realized. Compared with the sliding device of the phase shifter in the prior art, the transmission efficiency is improved to a certain extent, the precision is high, and the electrical index precision of the base station antenna can be improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a phase shifter according to the present invention;
FIG. 2 is a schematic diagram of a phase shifter according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a phase shifter according to one embodiment of the present invention;
fig. 4 is a second schematic diagram of a phase shifter according to the present invention.
Reference numerals:
1. a turntable; 11. a turntable body; 111. a tooth portion; 12. a mounting part; 121. a switching part; 122. a horizontal portion; 1221. a mounting position; 12211. a coupling line; 1222. a sliding part; 13. an accommodation space;
2. a phase shifting substrate; 21. an arc-shaped feed line; 22. an arc-shaped main feed line;
3. a drive assembly; 31. a driving motor; 32. an output gear.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The features of the invention "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 4, a phase shifting device according to an embodiment of the present invention includes: turntable 1, phase shift base plate 2 and drive assembly 3.
The turntable 1 and the phase-shifting substrate 2 are both insulator dielectric plates, the turntable 1 is rotatably arranged on the phase-shifting substrate 2, and illustratively, the turntable 1 is rotatably arranged on the phase-shifting substrate 2 through a rotating shaft or the turntable 1 is rotatably arranged on the phase-shifting substrate 2 through a guide rail. The phase-shifting substrate 2 is provided with an arc-shaped feed line 21, the turntable 1 is provided with a coupling line 12211, the arc-shaped feed line 21 is disposed to intersect the coupling line 12211, for example, the arc-shaped feed line 21 is disposed to extend in the circumferential direction of the turntable 1, and the coupling line 12211 is disposed to extend in the radial direction of the turntable 1.
Specifically, one or more main PCBs may be disposed on the phase shift substrate 2, and the arc-shaped feeding line 21 may be disposed on the main PCBs in the form of a microstrip line, one or more sub PCBs may be disposed on the turntable 1, and the coupling line 12211 may be disposed on the sub PCBs in the form of a microstrip line. It should be noted that, when the structures of the turntable 1 and the phase-shift substrate 2 are relatively simple, it is also possible to directly manufacture the turntable 1 and the phase-shift substrate 2 as a whole into a PCB board and etch the corresponding microstrip lines thereon.
When the turntable 1 is attached to the phase shift substrate 2 or is located close to the phase shift substrate, the arc-shaped feeder line 21 and the coupling line 12211 are disposed to face each other to generate a coupling effect. And, as the rotary table 1 rotates relative to the phase shifting substrate 2, the distance between the main feed port of the main feed line and the feed port of the arc feed line 21 changes, thereby producing the effect of phase change, realizing phase shifting operation and realizing adjustment of the electrical downtilt angle of the antenna.
The shapes of the turntable 1 and the phase-shifting substrate 2 are various, but the shape of the turntable 1 should be matched with the shape of the phase-shifting substrate 2 to improve the integration level of the phase-shifting device.
The phase-shifting substrate 2 may be a circular ring-shaped PCB board, and a plurality of microstrip type arc-shaped feeding lines 21 are uniformly arranged along the radial direction of the circular ring-shaped PCB board at intervals, the arc-shaped feeding lines 21 are concentric with the phase-shifting substrate 2, and each output end of the arc-shaped feeding lines 21 is connected with a radiating unit. The turntable 1 is a circular ring-shaped PCB board with the same size as the outer circumference of the phase-shifting substrate 2, and is arranged right above the phase-shifting substrate 2, the circle center of the turntable 1 and the circle center of the phase-shifting substrate 2 are on the same straight line, the surface of the turntable 1 is provided with a microstrip type coupling line 12211 capable of being coupled with the arc-shaped feed line 21, and the extension line of the extension path of the coupling line 12211 passes through the circle center. Further, the driving assembly 3 is in driving connection with the turntable 1, and the turntable 1 can rotate relative to the phase-shifting substrate 2 under the driving of the driving assembly 3, so that the coupling line 12211 can move along the arc-shaped feeding line 21, so that the distance between the main feeding port of the main feeding line and the feeding port of the arc-shaped feeding line 21 is changed.
In the embodiment of the invention, the turntable 1 can rotate relative to the fixed phase-shifting substrate 2 under the drive of the drive assembly 3, and along with the relative movement of the turntable 1 and the phase-shifting substrate 2, the distance between the main feed port of the main feed line and the feed port of the arc-shaped feed line 21 is changed, so that the phase adjustment is realized. Compared with the sliding device of the phase shifter in the prior art, the transmission efficiency is improved to a certain extent, the precision is high, and the electrical index precision of the base station antenna can be improved.
In an alternative embodiment, as shown in fig. 1 and 2, one of the inner and outer circumferences of the turntable 1 is provided with a tooth portion 111, and the driving assembly 3 includes a driving motor 31 and an output gear 32, the driving motor 31 and the output gear 32 are in driving connection, and the output gear 32 and the tooth portion 111 are in meshing connection.
Specifically, the turntable 1 and the phase shift substrate 2 may be annular members having substantially the same axial diameter. The turntable 1 is coaxially arranged above the phase-shifting substrate 2. In order to always locate right above the phase-shifting substrate 2 and the coupling line 12211 is always coupled with the corresponding arc-shaped feed line 21 during rotation of the turntable 1, the phase-shifting substrate 2 is provided with a guiding portion, and correspondingly, the turntable 1 is provided with a sliding body.
Illustratively, when the tooth 111 is disposed on the inner periphery of the turntable 1, the outer periphery of the phase-shifting substrate 2 is provided with an annular chute as a guiding portion, and correspondingly, the outer periphery of the turntable 1 is provided with a sliding portion 1222 matching with the annular chute, and the sliding portion 1222 can be clamped in the annular chute and slide along the annular chute; or, when the tooth portion 111 is disposed on the outer periphery of the turntable 1, the inner periphery of the phase-shifting substrate 2 is provided with an annular chute along the rotation direction as a guiding portion, and a slider adapted to the annular chute is convexly disposed at a corresponding position of the turntable 1, and the slider can be slidably matched with the annular chute.
It can be appreciated that the arrangement of the phase shifting device can be made more compact by providing the teeth 111 on the inner periphery of the turntable 1; when the tooth 111 is provided on the outer periphery of the turntable 1, the turntable 1 and the phase-shifting substrate 2 can be made to have a larger area to arrange the corresponding arc-shaped feeding line 21 and the coupling line 12211.
In the embodiment of the present invention, under the condition that the output shaft of the driving motor 31 rotates, the output gear 32 rotates correspondingly, and the output gear 32 drives the turntable 1 to rotate synchronously, so that the turntable 1 rotates relative to the phase-shifting substrate 2. Accordingly, the coupling position of the coupling line 12211 on the turntable 1 and the arc-shaped feeding line 21 on the phase shift substrate 2 is changed, thereby achieving phase shift.
It should be noted that the output gear 32 is not only provided to achieve the effect of reducing the speed and damping, but also to increase the phase shifting accuracy of the phase shifter. Each time the output gear 32 rotates by one tooth, the coupling line 12211 and the arc-shaped feeder line 21 can realize a change in the coupling line length by one unit. The amount of phase shifting means moving phase can be controlled according to the number of teeth by which the output gear 32 rotates. In addition, increasing the tooth profile density of the output gear 32 and the tooth portion 111 may improve the phase shifting device accuracy.
In an alternative embodiment, as shown in fig. 1, the turntable 1 includes a turntable body 11 and a mounting part 12, the inner circumference of the turntable body 11 is provided with a tooth part 111, the outer circumference of the turntable body 11 extends toward the center direction away from the turntable body 11 to form the mounting part 12, the mounting part 12 is provided with a mounting position 1221, and the mounting position 1221 is provided with a coupling line 12211.
Illustratively, the turntable body 11 may have a ring-shaped structure, and the mounting portions 12 are uniformly provided on the outer periphery of the turntable body 11 in the circumferential direction of the turntable body 11. Wherein, the turntable body 11 and the mounting part 12 are integrally formed.
It should be noted that the mounting location 1221 may be a groove, and the sub PCB board with the coupling circuit 12211 disposed on the surface is disposed in the groove. Wherein, vice PCB board is connected with the installation position 1221 can be dismantled to be convenient for later stage circuit board's change and maintenance.
Further, the end of the mounting portion 12 away from the turntable body 11 may be provided with a sliding portion 1222, and the sliding portion 1222 may be locked in and slide along the annular chute of the phase shift substrate 2. The sliding portion 1222 is arranged to enable the turntable 1 and the phase-shifting substrate 2 to keep concentric rotation, so that the coupling line 12211 is always coupled with the corresponding arc-shaped feed line 21, and the coupling accuracy is improved.
Wherein, an accommodating space 13 can be formed between the turntable body 11 and the phase shift substrate 2, and the driving assembly 3 can be partially disposed in the accommodating space 13. For example, the output gear 32 and the turntable body 11 are disposed on the same plane, and the driving motor 31 may be disposed in the accommodating space 13, and in the case that the phase-shifting substrate 2 may be a circular PCB board, the bottom of the driving motor 31 may extend out of the accommodating space 13, so as to facilitate installation of the driving motor 31.
In an alternative embodiment, as shown in fig. 1 to 3, the mounting portion 12 includes a switching portion 121 and a horizontal portion 122, the periphery of the turntable body 11 is bent and extended to form the switching portion 121, the switching portion 121 extends toward a center direction away from the turntable body 11 to form the horizontal portion 122, and the horizontal portion 122 is provided with a mounting position 1221; a height difference exists between the plane of the horizontal portion 122 and the plane of the turntable body 11, so that an accommodating space 13 can be formed between the turntable body 11 and the phase shift substrate 2. Wherein, the end of the horizontal portion 122 away from the adapter portion 121 may be provided with a sliding portion 1222.
In the whole, the turntable body 11 and the horizontal part 122 are arranged in parallel, the level of the turntable body 11 is higher than that of the horizontal part 122, the upper end of the switching part 121 is connected with the periphery of the turntable body 11 in an included angle, and the lower end of the switching part 121 is connected with one end of the horizontal part 122 in an included angle. Illustratively, the two ends of the adapting portion 121 are respectively disposed perpendicular to the turntable body 11 and the horizontal portion 122.
It will be appreciated that as the height of the adaptor 121 increases, the accommodating space 13 between the turntable body 11 and the phase shift substrate 2 correspondingly increases. The receiving space 13 is used for arranging the driving assembly 3, in other words, the height of the adapter 121 can be determined according to the height of the driving motor 31. For example, the bottom end of the driving motor 31 is in the same plane as the phase shift substrate 2, and the top surface of the output gear 32 is in the same plane as the top of the turntable body 11, thereby improving the compactness of the phase shift device.
In an alternative embodiment, as shown in fig. 3, the turntable body 11, the adapter 121 and the horizontal part 122 are integrally formed.
It should be noted that, because the turntable body 11, the switching portion 121 and the horizontal portion 122 are integrally formed, assembly tolerances of the turntable body 11, the switching portion 121 and the horizontal portion 122 can be avoided, so that rotation of each tooth of the tooth portion 111 of the turntable body 11 corresponds to a change of an accurate coupling phase, and phase shifting accuracy of the phase shifting device is ensured.
In an alternative embodiment, as shown in fig. 2, the turntable 1 includes a turntable body 11 and a mounting part 12, the outer circumference of the turntable body 11 is provided with a tooth part 111, the inner circumference of the turntable body 11 extends toward the center direction of the turntable body 11 to form the mounting part 12, the mounting part 12 is provided with a mounting position 1221, and the mounting position 1221 is provided with a coupling line 12211.
Specifically, the turntable body 11 may have a ring-shaped structure, and has teeth 111 on its outer circumference for engagement with the output gear 32. The mounting portion 12 is provided with a mounting position 1221 near the turntable body 11, and the coupling line 12211 is provided on the mounting position.
In addition, the center of the mounting portion 12 is provided with a rotation shaft hole, and a rotation shaft capable of sliding relative to the rotation shaft hole is convexly arranged at a position corresponding to the phase-shifting substrate 2, so that the circle center position is unchanged when the turntable 1 rotates relative to the phase-shifting substrate 2.
It can be understood that a gap is formed between the turntable body 11 and the phase-shifting substrate 2, so that the driving motor 31 is conveniently arranged, the output gear 32 can be meshed with the tooth portion 111, and the output gear 32 cannot collide with the phase-shifting substrate 2 when rotating, so that the safety of the structure is improved.
In an alternative embodiment, as shown in fig. 2, the mounting portion 12 includes a switching portion 121 and a horizontal portion 122, the switching portion 121 is formed by bending and extending the inner circumference of the turntable body 11, the horizontal portion 122 is formed by extending the switching portion 121 toward the center direction of the turntable body 11, and the horizontal portion 122 is provided with a mounting position 1221; a height difference exists between the plane of the horizontal portion 122 and the plane of the turntable body 11, so that a gap can be formed between the turntable body 11 and the phase-shifting substrate 2.
It should be noted that the horizontal portion 122 includes a first portion and a second portion, the first portion is strip-shaped and is uniformly disposed on the inner periphery of the turntable body 11 along the circumferential direction, and the second portion is ring-shaped. That is, the plurality of first portions converge on the second portion. Wherein the mounting location 1221 is provided on the first portion. The center of the turntable body 11 and the center of the second part are positioned on the same straight line.
In the whole, the turntable body 11 and the horizontal part 122 are arranged in parallel, the horizontal height of the turntable body 11 is higher than that of the horizontal part 122, one end of the switching part 121 is arranged at an included angle with the periphery of the turntable body 11, and the other end is arranged at an included angle with the end part of the horizontal part 122. Illustratively, the two ends of the adapting portion 121 are respectively disposed perpendicular to the turntable body 11 and the horizontal portion 122.
It is understood that the adaptor 121 may function to adjust the height of the turntable body 11, and as the height of the adaptor 121 increases, the gap between the turntable body 11 and the phase shift substrate 2 increases.
In an alternative embodiment, as shown in fig. 4, the arc-shaped feeder lines 21 are plural, and the plural arc-shaped feeder lines 21 are circumferentially arranged; the coupling lines 12211 are plural, and the plural coupling lines are in one-to-one correspondence with the plural arc-shaped feeder lines 21.
Illustratively, the arc-shaped feeder lines 21 are four and are uniformly laid out along the circumferential direction of the phase shift substrate 2. Each arc-shaped feed line 21 may include three arc-shaped microstrip lines, where the three arc-shaped microstrip lines are uniformly distributed along the radial direction of the phase-shifting substrate 2, and each arc-shaped microstrip line is concentric with the phase-shifting substrate 2, so as to ensure that the upper coupling line 12211 is always coupled with the corresponding arc-shaped microstrip line when the turntable 1 rotates relative to the phase-shifting substrate 2, and six output ends formed by the three arc-shaped microstrip lines are respectively connected with different radiating units of the antenna.
Further, as the radius of the circular arc microstrip line decreases, the power of the antenna radiating unit connected with the output end of the circular arc microstrip line increases, so that a group of six-unit low-gain electrically tunable antennas is formed. Correspondingly, 4 mounting portions 12 are provided on the turntable 1, and each mounting portion 12 is provided with a coupling line 12211 and is coupled to a corresponding arc-shaped feeder line 21. When the number of the arc-shaped feed lines 21 is four, four groups of electrically tunable antennas can be formed.
Further, the driving motor 31 drives the output gear 32 to rotate by a certain angle, the output gear 32 drives the tooth portion 111 to rotate by a certain number of teeth, and the rotary table 1 rotates by a certain angle relative to the phase shifting device, when one phase shifting device is provided with four arc-shaped feed lines 21 and four coupling lines 12211, along with the rotation of the rotary table 1, the four coupling lines 12211 and the corresponding arc-shaped feed lines 21 can all realize the change of coupling phases, so that one phase shifting device can adjust four electrically-tunable antennas simultaneously.
In an alternative embodiment, as shown in fig. 4, the phase-shifting substrate 2 is further provided with an arc-shaped main feeder line 22, and the coupling line 12211 can move along the arc-shaped main feeder line 22 and be coupled to the arc-shaped main feeder line 22 when the turntable 1 rotates relative to the phase-shifting substrate 2.
Specifically, the arc-shaped main feeder line 22 and the arc-shaped feeder line 21 are both arranged on the phase-shifting substrate 2, the arc-shaped main feeder line 22 and a plurality of arc-shaped microstrip lines of the arc-shaped feeder line 21 are arranged concentrically, and the arc-shaped main feeder line 22 is arranged close to the center of the phase-shifting substrate 2. The feed port of the arc-shaped main feed line 22 is connected as an input to the radio frequency unit and the ports of the arc-shaped feed line 21 are connected as outputs to different radiating elements of the antenna. The coupling lines 12211 are capable of coupling with corresponding arcuate main feeder lines 22 and arcuate feeder lines 21, respectively.
In addition, the embodiment of the invention also provides an antenna, which comprises the phase shifting device.
Specifically, since the antenna includes the phase shifting device as described above, and the specific structure of the phase shifting device refers to the above embodiment, the antenna shown in this embodiment includes all the technical solutions of the above embodiment, so at least all the beneficial effects obtained by all the technical solutions are not described in detail herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A phase shifting apparatus, comprising: the device comprises a turntable, a phase shifting substrate and a driving assembly;
the rotary table is rotationally arranged on the phase-shifting substrate, an arc-shaped feed line is arranged on the phase-shifting substrate, and a coupling line is arranged on the rotary table;
the driving assembly is in transmission connection with the turntable, the turntable can rotate relative to the phase-shifting substrate under the driving of the driving assembly, and the coupling circuit can move along the arc-shaped feed circuit and is in coupling connection with the arc-shaped feed circuit.
2. The phase shifting device according to claim 1, wherein one of an inner periphery and an outer periphery of the turntable is provided with a tooth portion, the driving assembly includes a driving motor and an output gear, the driving motor and the output gear are in driving connection, and the output gear and the tooth portion are in meshing connection.
3. The phase shifting device according to claim 2, wherein the turntable comprises a turntable body and a mounting portion, the tooth portion is provided on the inner periphery of the turntable body, the mounting portion is formed by extending the outer periphery of the turntable body toward the center direction away from the turntable body, the mounting portion is provided with a mounting position, and the mounting position is provided with the coupling line; the rotary table body and the phase-shifting substrate can form an accommodating space, and the driving motor is arranged in the accommodating space.
4. The phase shifting device according to claim 3, wherein the mounting portion includes a switching portion and a horizontal portion, the switching portion is formed by bending and extending the outer periphery of the turntable body, the switching portion is formed by extending the horizontal portion toward a center direction away from the turntable body, and the mounting position is provided on the horizontal portion; the plane where the horizontal part is located and the plane where the turntable body is located have a height difference, so that the accommodating space can be formed between the turntable body and the phase-shifting substrate.
5. The phase shifting device of claim 4, wherein the dial body, the adapter portion, and the horizontal portion are integrally formed.
6. The phase shifting device according to claim 2, wherein the turntable includes a turntable body and a mounting portion, the tooth portion is provided on an outer periphery of the turntable body, the mounting portion is formed by extending an inner periphery of the turntable body toward a center direction of the turntable body, the mounting portion is provided with a mounting position, and the mounting position is provided with the coupling line; and a gap can be formed between the turntable body and the phase-shifting substrate.
7. The phase shifting device according to claim 6, wherein the mounting portion includes a switching portion and a horizontal portion, the switching portion is formed by bending and extending an inner periphery of the turntable body, the switching portion is formed by extending the horizontal portion toward a center direction of the turntable body, and the mounting position is provided on the horizontal portion; the level part is arranged on the plane of the turntable body, and the level part is arranged on the plane of the turntable body, so that the gap can be formed between the turntable body and the phase-shifting substrate.
8. The phase shifting apparatus according to claim 1, wherein the plurality of arc-shaped feeder lines are provided in a plurality of arc-shaped feeder lines arranged circumferentially; the plurality of coupling lines are in one-to-one correspondence with the plurality of arc feed lines.
9. The phase shifting device according to claim 1, wherein the phase shifting substrate is further provided with an arc-shaped main feeder line, and the coupling line is capable of moving along the arc-shaped main feeder line and is coupled with the arc-shaped main feeder line when the turntable rotates relative to the phase shifting substrate.
10. An antenna comprising a phase shifting device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310069344.7A CN116315680A (en) | 2023-01-13 | 2023-01-13 | Phase shifter and antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310069344.7A CN116315680A (en) | 2023-01-13 | 2023-01-13 | Phase shifter and antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116315680A true CN116315680A (en) | 2023-06-23 |
Family
ID=86798692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310069344.7A Pending CN116315680A (en) | 2023-01-13 | 2023-01-13 | Phase shifter and antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116315680A (en) |
-
2023
- 2023-01-13 CN CN202310069344.7A patent/CN116315680A/en active Pending
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