Suspended strip line phase shifter and communication system
By designing a suspended wire-line phase shifter in the antenna, and using a movable phase shifting medium sheet to change the phase of the phase shift network, the problem of high radiation loss in the traditional antenna is solved, and a low-loss and high-efficiency wireless communication system is realized.
Patent Information
- Application Number
- CN202510485067.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2025-06-20
AI Technical Summary
In actual applications, traditional antennas have problems such as high radiation loss and large power consumption, which limits the performance and efficiency of wireless communication systems.
A suspended wire-line phase shifter is provided, including a cavity, a phase shift network, a phase shifting medium sheet and a fixed medium sheet. The phase-shifting medium sheet is movable relative to the phase-shifting network and is used to change the output port phase of the phase-shifting network, thereby reducing losses and improving efficiency.
By reducing the cable connection between the phase shifter and the feeding network, the loss and dielectric loss of the entire feeding network are reduced, the overall radiation efficiency of the antenna is improved, and the design needs of low loss and green energy saving are achieved.
Smart Images
Figure CN120184542A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of communication technologies, and more particularly, to a suspended strip-line phase shifter and a communication system. Background Art
[0002] With the rapid development of wireless communication technologies, people's demand for wireless communication has been increasing continuously. However, traditional antennas have some problems in practical applications, such as high radiation loss, high power consumption, etc. These problems limit the performance and efficiency of wireless communication systems.
[0003] In order to reduce the power consumption of base stations and save energy, the research and development project of green energy-saving antennas has emerged as the times require. Correspondingly, the performance of the phase shifter also needs to feature low loss and high-efficiency integration.
[0004] However, the performance of phase shifters in related technologies usually difficult to meet the overall adaptation requirements of antennas, which to a certain extent limits the overall efficiency of antennas. Summary of the Invention
[0005] In view of this, the purpose of the present invention is to provide a suspended strip-line phase shifter and a communication system to alleviate the above-mentioned technical problems.
[0006] In a first aspect, an embodiment of the present invention provides a suspended strip-line phase shifter, including: a cavity, and a phase-shifting network, a phase-shifting dielectric sheet, and a fixed dielectric sheet disposed inside the cavity; wherein, the fixed dielectric sheet is used to fix the phase-shifting network inside the cavity; the phase-shifting dielectric sheet is movably disposed relative to the phase-shifting network and is used to generate a relative displacement with the phase-shifting network to change the phase of the output port of the phase-shifting network.
[0007] Combined with the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the above-mentioned cavity is a metal cavity.
[0008] Combined with the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the above-mentioned suspended strip-line phase shifter further includes a grounding member; one end of the grounding member is fixedly connected to the metal cavity, and the other end is connected to a ground wire.
[0009] Combined with the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the above-mentioned phase-shifting network is a sheet metal phase-shifting network, and the strip line of the sheet metal phase-shifting network is shaped according to a pre-configured array.
[0010] Combined with the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the above-mentioned sheet metal phase shifter network extends along the first direction; the phase shift dielectric sheet also extends along the first direction, and the length of the phase shift dielectric sheet matches the length of the sheet metal phase shifter network.
[0011] Combined with the fourth possible implementation manner of the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the above-mentioned phase shift dielectric sheet includes a first dielectric sheet and a second dielectric sheet arranged along the first direction; the first dielectric sheet and the second dielectric sheet are stacked in a direction perpendicular to the plane where the phase shift dielectric sheet is located to form a layered structure; the phase shifter network is arranged in the layered structure so that the first dielectric sheet and the second dielectric sheet slide relative to the phase shifter network.
[0012] Combined with the fifth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the above-mentioned phase shifter network includes a plurality of network segments extending along the first direction, and the plurality of network segments are connected in sequence to form the phase shifter network.
[0013] Combined with the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the number of the above-mentioned fixed dielectric sheets is multiple, and the multiple fixed dielectric sheets are arranged inside the cavity to fix the phase shifter network.
[0014] Combined with the seventh possible implementation manner of the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein a fixed area matching the fixed dielectric sheet is provided at a preset position of the phase shifter network, and the fixed dielectric sheet is used to fix the phase shifter network in the fixed area to fix the phase shifter network inside the cavity.
[0015] In a second aspect, an embodiment of the present invention further provides a communication system, and the communication system is configured with the suspended stripline phase shifter described in the first aspect.
[0016] The embodiments of the present invention bring the following beneficial effects:
[0017] The suspension strip line phase shifter and communication system provided by the embodiments of the present invention include a cavity in the suspension strip line phase shifter, as well as a phase shift network, a phase shift dielectric sheet, and a fixed dielectric sheet arranged inside the cavity; wherein, the fixed dielectric sheet is used to fix the phase shift network inside the cavity; the phase shift dielectric sheet is movably arranged relative to the phase shift network and is used to generate a relative displacement with the phase shift network to change the phase of the output port of the phase shift network. The above-mentioned phase shift network can be used as a feeding network, realizing the integration of the feeding network into the phase shifter, reducing the cable connection between the phase shifter and the feeding network, thereby reducing the loss of the entire feeding network and dielectric loss, contributing to improving the overall radiation efficiency of the antenna, and further contributing to realizing the design requirements of low loss and green energy saving of the antenna.
[0018] Other features and advantages of the present invention will be described in the following description, and some of them will be obvious from the description, or will be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the description, claims, and drawings.
[0019] To make the above-mentioned objectives, features, and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. Description of the Drawings
[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0021] Figure 1 It is a top view of a suspension strip line phase shifter provided by an embodiment of the present invention;
[0022] Figure 2 It is a schematic structural diagram of a phase shift dielectric sheet provided by an embodiment of the present invention;
[0023] Figure 3 It is a schematic diagram of a phase shift network provided by an embodiment of the present invention;
[0024] Figure 4 It is a partial structural schematic diagram of a suspension strip line phase shifter provided by an embodiment of the present invention;
[0025] Figure 5 It is a schematic diagram of a Smith chart provided by an embodiment of the present invention;
[0026] Figure 6 It is a shaping schematic diagram of a suspension strip line phase shifter provided by an embodiment of the present invention;
[0027] Figure 7 This is a shaping schematic diagram of another suspended strip line phase shifter provided by an embodiment of the present invention.
[0028] Reference numerals: 100 - cavity; 101 - phase - shifting network; 102 - phase - shifting dielectric sheet; 103 - fixed dielectric sheet; 104 - grounding member; 101a - network segment. Detailed implementation manners
[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0030] Currently, there are some problems in the actual application of traditional antennas, such as high radiation loss, high power consumption, etc. These problems limit the performance and efficiency of wireless communication systems.
[0031] Based on this, a suspended strip line phase shifter and a communication system provided by an embodiment of the present invention can effectively alleviate the above - mentioned technical problems.
[0032] To facilitate the understanding of this embodiment, a suspended strip line phase shifter disclosed in the embodiments of the present invention will be introduced in detail first.
[0033] In a possible implementation manner, an embodiment of the present invention provides a suspended strip line phase shifter, including a cavity, and a phase - shifting network, a phase - shifting dielectric sheet, and a fixed dielectric sheet disposed inside the cavity; wherein, the fixed dielectric sheet is used to fix the phase - shifting network inside the cavity; the phase - shifting dielectric sheet is movably disposed relative to the phase - shifting network and is used to generate a relative displacement with the phase - shifting network to change the phase of the output port of the phase - shifting network.
[0034] Among them, for the sake of easy understanding, Figure 1 A top view of a suspended strip line phase shifter is shown. Specifically, Figure 1 The shown is a schematic diagram of the internal structure of the cavity, including a part of the cavity 100, a phase - shifting network 101, a phase - shifting dielectric sheet 102, and a fixed dielectric sheet 103.
[0035] Specifically, the phase - shifting network is placed in the middle of the cavity 100. The phase - shifting dielectric sheet can be disposed inside the cavity 100 according to actual usage requirements and is at a preset distance from both ends of the phase - shifting network. That is, the position of the phase - shifting dielectric sheet relative to both ends of the phase - shifting network can be set according to actual usage requirements and fixed at a suitable position, thereby locking the phase of the phase - shifting network.
[0036] Therefore, the suspended stripline phase shifter provided by the embodiment of the present invention includes a cavity, and a phase shift network, a phase shift dielectric sheet, and a fixed dielectric sheet disposed inside the cavity; wherein, the fixed dielectric sheet is used to fix the phase shift network inside the cavity; the phase shift dielectric sheet is movably disposed relative to the phase shift network and is used to generate a relative displacement with the phase shift network to change the phase of the output port of the phase shift network. The above phase shift network can be used as a feeding network, realizing the integration of the feeding network into the phase shifter, reducing the cable connection between the phase shifter and the feeding network, thereby reducing the loss of the entire feeding network and the dielectric loss, contributing to improving the overall radiation efficiency of the antenna, and further contributing to realizing the design requirements of low loss and green energy saving of the antenna.
[0037] In actual use, the above cavity is a metal cavity. And, for the convenience of assembling structures such as the phase shift network, the metal cavity is usually formed by connecting two metal cavities buckled side by side, facilitating the setting of structures such as the phase shift network 101, the phase shift dielectric sheet 102, and the fixed dielectric sheet 103 inside the cavity.
[0038] Moreover, in order to realize the grounding setting of the metal cavity, the above suspended stripline phase shifter further includes a grounding component; one end of the grounding component is fixedly connected to the metal cavity, and the other end is connected to the ground wire.
[0039] Specifically, Figure 1 also shows a grounding component 104. The grounding component 104 can adopt the way of a grounding wire seat and is fixed to the metal cavity by screws, thereby realizing the grounding connection of the metal cavity.
[0040] Furthermore, the phase shift network in the embodiment of the present invention is a sheet metal phase shift network, and the stripline of the sheet metal phase shift network is shaped according to a pre-configured array.
[0041] In specific implementation, the phase shift network is designed by replacing the cable with sheet metal material and placed in the cavity, enabling the sheet metal phase shift network to be shaped by its own hardness, thus removing the shaping method with a substrate support, reducing the dielectric loss caused by the sheet material, and reducing the cable loss of the antenna shaping phase.
[0042] Furthermore, the sheet metal phase shift network in the embodiment of the present invention extends along a first direction; for example, Figure 1 in the whole suspended stripline phase shifter is in a long strip structure, the first direction in the embodiment of the present invention can be the direction along the long side of the suspended stripline phase shifter, such that the above sheet metal phase shift network extends along the long side direction inside the cavity. At the same time, the phase shift dielectric sheet also extends along the first direction, and the length of the phase shift dielectric sheet matches the length of the sheet metal phase shift network.
[0043] Further, the phase-shifting dielectric sheet in the embodiment of the present invention includes a first dielectric sheet and a second dielectric sheet arranged along a first direction; the first dielectric sheet and the second dielectric sheet are stacked in a direction perpendicular to the plane where the phase-shifting dielectric sheet is located to form a layered structure; and a phase-shifting network is arranged in the layered structure so that the first dielectric sheet and the second dielectric sheet can slide relative to the phase-shifting network.
[0044] In actual use, usually, the phase-shifting dielectric sheet is in a sheet structure, and the direction perpendicular to the plane where the phase-shifting dielectric sheet is located is equivalent to the normal direction of the phase-shifting dielectric sheet. At the same time, this normal direction is also consistent with the normal direction of the metal cavity of the entire suspended stripline phase shifter. In this direction, the above-mentioned first dielectric sheet and second dielectric sheet are stacked in sequence, and there is a certain gap between the two, thus forming the above-mentioned layered structure. The phase-shifting network is arranged in the above-mentioned gap and fixed by a fixed dielectric sheet.
[0045] For ease of understanding, based on Figure 1 , Figure 2 a schematic structural diagram of a phase-shifting dielectric sheet is shown, where the above-mentioned first dielectric sheet and second dielectric sheet can adopt the same or similar structures.
[0046] Further, Figure 3 a schematic diagram of a phase-shifting network is also shown, and the phase-shifting network in the embodiment of the present invention includes a plurality of network segments extending along a first direction, and the plurality of network segments are connected in sequence to form a phase-shifting network.
[0047] Specifically, usually, Figure 2 the shown phase-shifting dielectric sheet and Figure 3 the shown phase-shifting network have matching lengths. Specifically, as shown in Figure 3 , the network segment 101a of the phase-shifting network is shown, and the plurality of network segments 101a are connected in sequence to form the phase-shifting network in the embodiment of the present invention. Moreover, the length of each network segment and the density of the network can be set according to actual use conditions, and the embodiment of the present invention does not limit this.
[0048] Further, the above-mentioned first dielectric sheet and second dielectric sheet can move relative to the phase-shifting network. For example, by changing the position of the phase-shifting network in the layered structure, the relative position between the phase-shifting network and the phase-shifting dielectric sheet can be changed. That is, the position of the network segment relative to the first dielectric sheet and the second dielectric sheet can be changed by sliding according to actual use requirements, so that a relative displacement can be generated between the phase-shifting dielectric sheet and the phase-shifting network, thereby changing the phase of the output port of the phase-shifting network.
[0049] Moreover, the first dielectric sheet and the second dielectric sheet are usually fixed by riveting to each other, and can support the main body of the entire phase shifter network. The phase change of each output port of the phase shifter network is completed by sliding relative to the main body of the phase shifter network.
[0050] Furthermore, there are multiple fixing dielectric sheets as described above, and the multiple fixing dielectric sheets are arranged inside the cavity to fix the phase shifter network.
[0051] Specifically, Figure 4 FIG. shows a partial structural schematic diagram of a suspended stripline phase shifter. Figure 4 also shows the structure of the fixing dielectric sheet 103, as Figure 4 shown. The fixing dielectric sheet 103 can be distributed at multiple positions of the phase shifter network to avoid position deviation caused by deformation of the phase shifter network through multi-point fixing; moreover, a fixing area matching the fixing dielectric sheet is provided at a preset position of the phase shifter network, and the fixing dielectric sheet is used to fix the phase shifter network at the fixing area to fix the phase shifter network inside the cavity.
[0052] In actual use, the fixing dielectric sheet 103 in the above Figure 4 can be set in the form of a connector, that is, through the fixing method of the connector, the structures of the metal cavity, the phase shifter network, and the fixing dielectric sheet are passed through, and then the relative positions of the parts of the phase shifter network in the metal cavity are locked.
[0053] Furthermore, Figure 5 also shows a Smith chart schematic diagram. Specifically, Figure 5 shows the Smith chart schematic diagram during the phase change of the main feed port of the suspended stripline phase shifter. It can be seen from Figure 3 that the overall impedance matching of the suspended stripline phase shifter provided in the embodiment of the present invention remains well matched during the movement, ensuring a high transmission rate.
[0054] Furthermore, Figure 6 and Figure 7 also show the contour plot schematic diagrams of the suspended stripline phase shifter respectively. Specifically, Figure 6 and Figure 7 show the contour plot schematic diagrams of the suspended stripline phase shifter at 1885 MHz - 2025 MHz. Figure 6 T0 in Figure 7 and T10 in Figure 6 and Figure 7 refer to the fact that the suspended stripline phase shifter realizes antenna electronic downtilt of 0° and 10°. The different curves represent the contour plot schematic diagrams of different frequencies. Moreover, Figure 6 and Figure 7As can be seen, the main radiation beams with different frequencies have high energy concentration, which can ensure the radiation distance of the antenna and reduce over-coverage.
[0055] In summary, the suspended stripline phase shifter provided by the embodiment of the present invention is actually a low-loss suspended stripline phase shifter, which helps to improve the radiation efficiency of the antenna and meet the requirements of environmental protection antennas.
[0056] Moreover, the suspended stripline phase shifter in the embodiment of the present invention is placed in the middle of the cavity. The cable that determines the shaping phase of the whole machine array is replaced with a sheet metal material and integrated into the phase shift network to obtain the sheet metal phase shift network in the embodiment of the present invention, so that the phase shift network can be supported by its own hardness, thereby removing the substrate support shaping and other structures, reducing the dielectric loss caused by the board, and reducing the cable loss of the antenna shaping phase. In addition, the phase shift dielectric sheets are respectively covered on the upper and lower ends of the phase shift network. The phase shift dielectric sheets can be fixed by riveting, which plays a role in supporting and fixing the phase shift network and locking the phase of the phase shift network. When the phase shift dielectric sheets move, each phase shift dielectric sheet can move relative to each other, thereby changing the phase of the output port of the phase shift network.
[0057] Therefore, the suspended stripline phase shifter provided by the embodiment of the present invention helps to improve the overall radiation efficiency of the antenna and meet the design requirements of low loss and green energy saving of the antenna.
[0058] Furthermore, the embodiment of the present invention also provides a communication system configured with a suspended stripline phase shifter.
[0059] The communication system provided by the embodiment of the present invention has the same technical features as the suspended stripline phase shifter provided by the above embodiment, so it can also solve the same technical problems and achieve the same technical effects.
[0060] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the communication system described above can refer to the corresponding process in the foregoing embodiment, and will not be repeated here.
[0061] In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0062] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs.
[0063] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0064] Finally, it should be noted that the above embodiments are only specific embodiments of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions described in the foregoing embodiments, or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims
1. A suspended strip line phase shifter, characterized in that: include: A cavity, and a phase shifting network, a phase shifting dielectric sheet and a fixed dielectric sheet arranged inside the cavity; Wherein, the fixed dielectric sheet is used to fix the phase shift network inside the cavity; The phase-shifting dielectric sheet is movably arranged relative to the phase-shifting network, and is used to generate relative displacement with the phase-shifting network to change the output port phase of the phase-shifting network.
2. The suspended stripline phase shifter according to claim 1, characterized in that: The cavity is a metal cavity.
3. The suspended stripline phase shifter according to claim 2, characterized in that: The suspended strip line phase shifter further includes a grounding member; One end of the grounding piece is fixedly connected to the metal cavity, and the other end is connected to the ground wire.
4. The suspended stripline phase shifter according to claim 1, characterized in that: The phase shift network is a sheet metal phase shift network, and the strip lines of the sheet metal phase shift network are shaped according to a pre-configured array.
5. The suspended stripline phase shifter according to claim 4, characterized in that: The sheet metal phase shifting network extends along a first direction; The phase-shifting dielectric sheet also extends along the first direction, and the length of the phase-shifting dielectric sheet matches the length of the sheet metal phase-shifting network.
6. The suspended stripline phase shifter according to claim 5, characterized in that: The phase-shifting dielectric sheet comprises a first dielectric sheet and a second dielectric sheet arranged along the first direction; The first dielectric sheet and the second dielectric sheet are stacked in a direction perpendicular to the plane where the phase-shifting dielectric sheet is located to form a layered structure; The phase shifting network is arranged in the layered structure so that the first dielectric sheet and the second dielectric sheet slide relative to the phase shifting network.
7. The suspended stripline phase shifter according to claim 6, characterized in that: The phase-shifting network includes a plurality of network segments extending along the first direction, and the plurality of network segments are connected in sequence to form the phase-shifting network.
8. The suspended stripline phase shifter according to claim 1, characterized in that: There are multiple fixed dielectric sheets, and the multiple fixed dielectric sheets are arranged inside the cavity to fix the phase shifting network.
9. The suspended stripline phase shifter according to claim 8, characterized in that: A fixing area matching with a fixing dielectric sheet is arranged at a preset position of the phase shifting network, and the fixing dielectric sheet is used to fix the phase shifting network in the fixing area so as to fix the phase shifting network inside the cavity.
10. A communication system, characterized in that: The communication system is equipped with the suspended strip line phase shifter according to any one of claims 1 to 9.