Low-frequency radiation unit for integrated phase shifter

Abstract

The invention provides a low-frequency radiation unit for an integrated phase shifter, which is arranged on the surface of a reflecting plate and comprises a plurality of pairs of radiation arms, a dielectric substrate, a plurality of supporting seats and a phase shifting assembly, each pair of radiation arms is connected with the dielectric substrate in a buckling manner, so that coupling structures which are distributed at intervals are formed on the surface of the dielectric substrate; one surface of the dielectric substrate bears each pair of radiation arms, and the other surface of the dielectric substrate is fixedly connected with the reflecting plate through the supporting seat; each supporting seat is symmetrically distributed relative to the phase shifting assembly, and the phase shifting assembly is connected with the reflecting plate and each pair of radiation arms so as to provide excitation signals for each radiation arm. Through the combination of the phase shifter and the supporting seat and the avoidance design of the supporting seat, the space utilization rate can be improved, the stability and reliability of signal transmission are ensured, and the manufacturing and maintenance cost of the antenna is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of communication technology, and in particular relates to a low-frequency radiation unit for integrating a phase shifter. Background Art

[0002] In the development of the antenna field, the design and optimization of antennas have always been the focus of research. Traditional antenna structures usually set the phase shifter and the radiating element separately, and this design method has some inherent defects. On the one hand, the separately set phase shifter and radiating element occupy a large amount of internal space of the antenna, resulting in low internal space utilization of the antenna, which is a great limiting factor for some application scenarios with strict space restrictions. On the other hand, due to the decentralized layout of components, the phase shifter and radiating element need to be processed and assembled separately during the manufacturing process, which not only increases the production cost, but also easily produces errors during the assembly process, affecting the overall performance of the antenna. At present, the market urgently needs a new type of antenna structure to overcome these problems in order to meet the comprehensive needs of antenna miniaturization, low cost and high performance. Summary of the invention

[0003] In order to solve the problem that the existing radiation unit described in the background technology has high production cost and is prone to errors during assembly, which affects the overall performance of the antenna, the present invention proposes the following technical solution:

[0004] A low-frequency radiation unit for an integrated phase shifter is arranged on the surface of a reflector, comprising: a plurality of pairs of radiation arms, a dielectric substrate, a plurality of support seats and a phase shifting assembly; each pair of the radiation arms is snap-connected to the dielectric substrate, thereby forming a coupling structure distributed at intervals on the surface of the dielectric substrate; one side of the dielectric substrate carries each pair of the radiation arms, and the other side of the dielectric substrate is fixedly connected to the reflector through the support seat; each of the support seats is symmetrically distributed about the phase shifting assembly, and the phase shifting assembly connects the reflector and each pair of the radiation arms to provide an excitation signal for each of the radiation arms.

[0005] Wherein, the outer periphery of each support seat is provided with a pair of horizontal ribs and a pair of vertical ribs, each of the horizontal ribs is located on one of the opposite sides of the support seat, and each of the vertical ribs are parallel to each other.

[0006] Furthermore, each of the horizontal ribs is vertically fixedly connected to the dielectric substrate, and each of the vertical ribs is vertically fixedly connected to the dielectric substrate; each of the horizontal ribs in the same support base is vertically connected to one of the vertical ribs, thereby dividing the surface of the dielectric substrate into multiple coupling areas matching the radiation arms.

[0007] Furthermore, one side of the dielectric substrate away from the support seat is spaced apart and raised to form a positioning column, a limiting buckle and a partition plate matching each of the coupling areas; each of the positioning columns passes through the surface of one of the radiating arms respectively; the limiting buckles are arranged in pairs, each of the limiting buckles is located on both sides of each of the partition plates, and each of the limiting buckles is snap-connected with one of the radiating arms; each of the partition plates is located between adjacent radiating arms.

[0008] Furthermore, the phase shifting component includes: a feeding balun and a phase shifting dielectric plate; one end of the feeding balun passes through the surface of the dielectric substrate, and the other end of the feeding balun is fixedly connected to the reflecting plate; the phase shifting dielectric plate is movably arranged on the surface of the feeding balun, and a plurality of impedance holes are arranged on the surface of the phase shifting dielectric plate; when the phase shifting dielectric plate moves relative to the feeding balun, the phase of the low-frequency radiation unit changes.

[0009] Furthermore, a feeding network is provided on the surface of the feeding balun, the impedance hole partially overlaps with the feeding network, and each of the radiating arms is electrically connected to the feeding network.

[0010] Furthermore, each of the radiation arms is in a square ring shape, and an inner ring region of each of the radiation arms partially overlaps with one of the coupling regions.

[0011] Beneficial effects: The present invention, through the combination of the phase shifter and the support base and the avoidance design of the support base, enables the present invention to improve space utilization while ensuring the stability and reliability of signal transmission and reducing the manufacturing and maintenance costs of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of a three-dimensional structure of a low-frequency radiation unit for integrating a phase shifter according to an embodiment of the present invention;

[0013] Figure 2 The figure is a schematic diagram of an exploded structure of a low-frequency radiation unit for integrating a phase shifter according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present application clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0015] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0016] Figure 1 Schematic diagram of the three-dimensional structure of a low-frequency radiation unit for integrating a phase shifter according to an embodiment of the present invention.

[0017] Reference Figure 1 A low-frequency radiation unit for an integrated phase shifter according to an embodiment of the present invention is arranged on the surface of a reflector 1, and the low-frequency radiation unit includes: a plurality of pairs of radiation arms 2, a dielectric substrate 3, a plurality of support seats 4, and a phase shifting assembly 5. Each pair of radiation arms 2 is assembled with the dielectric substrate 3 by means of a snap-fit ​​connection, thereby forming a coupling structure distributed at intervals on the surface of the dielectric substrate 3. The dielectric substrate 3 is in the shape of a plate as a whole, one of the opposite wide faces of which carries a plurality of pairs of radiation arms 2, and the other wide face is fixedly connected to the reflector 1 through a plurality of support seats 4. Each support seat 4 is symmetrically distributed about the phase shifting assembly 5, and the phase shifting assembly 5 connects the reflector 1 and each pair of radiation arms 2, thereby providing a corresponding excitation signal for each radiation arm 2.

[0018] Figure 2 The figure is a schematic diagram of an exploded structure of a low-frequency radiation unit for integrating a phase shifter according to an embodiment of the present invention.

[0019] Reference Figure 2 Specifically, the outer periphery of each support seat 4 is provided with a pair of horizontal ribs 41 and a pair of vertical ribs 42. Each horizontal rib 41 is located on one of the opposite sides of the support seat 4, each vertical rib 42 is located on the same side of the support seat 4, and each horizontal rib 41 is vertically connected to a vertical rib 42. The wide surfaces between each horizontal rib 41 are coplanar, each vertical rib 42 is located on one of the sides of the support seat 4 that is different from the horizontal rib 41, and each vertical rib 42 is parallel to each other. When each support seat 4 is fixed on the surface of the dielectric substrate 3, each horizontal rib 41 and each vertical rib 42 jointly divide one of the wide surfaces of the support seat 4 into equally divided coupling areas, and each coupling area matches a radiation arm 2.

[0020] Continue to refer to Figure 1Furthermore, one side of the dielectric substrate 3 away from the support base 4 is raised, thereby forming a plurality of positioning posts 31, a plurality of limiting buckles 32 and a plurality of partition plates 33 matching each coupling region. Each positioning post 31 is located at the center of one of the wide faces of the support base 4, and each positioning post 31 passes through the surface of a radiation arm 2. Each limiting buckle 32 is located on both sides of each partition plate 33, and each limiting buckle 32 in the same coupling region is snap-connected with the same radiation arm 2. Each partition plate 33 is located between adjacent radiation arms 2, and the connecting line of each partition plate 33 forms the dividing line of each coupling region.

[0021] Specifically, the phase shifting component 5 includes: a feeding balun 51 and a phase shifting dielectric plate 52. A feeding network 511 is provided on the surface of the feeding balun 51, and one end of the feeding balun 51 passes through the surface of the dielectric substrate 3 and is welded so that each radiation arm 2 is electrically connected to one of the ports of the feeding network 511. A plurality of impedance voids 521 arranged at intervals are provided on the surface of the phase shifting dielectric plate 52, and each impedance void 521 partially overlaps with the feeding network 511. When the phase shifting dielectric plate 52 moves relative to the feeding balun 51, the phase of the entire low-frequency radiating unit changes, thereby changing the performance of the entire low-frequency radiating unit.

[0022] Furthermore, in one embodiment, in order to further reduce the mass of the entire low-frequency radiation unit, each radiation arm 2 is in a square ring shape, the inner ring area thereof partially overlaps with the corresponding coupling area, and the inner ring area range of each radiation arm 2 is larger than the range of the corresponding coupling area. On the same radiation arm 2, each limit buckle 32 limits one of the edges of the radiation arm 2 respectively.

[0023] In summary, the present invention, through the combination of the phase shifter and the support base and the avoidance design of the support base, enables the present invention to improve space utilization while ensuring the stability and reliability of signal transmission and reducing the manufacturing and maintenance costs of the antenna.

[0024] The foregoing describes certain embodiments of the invention. Other embodiments are within the scope of the following claims.

[0025] The terms "exemplary," "example," and the like used throughout this specification mean "used as an example, instance, or illustration" and do not mean "preferred" or "advantageous" over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques can be implemented without these specific details. In some instances, in order to avoid obscuring the concepts of the described embodiments, well-known structures and devices are shown in block diagram form.

[0026] The optional implementation modes of the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

[0027] The above description of the contents of this specification is provided to enable any person of ordinary skill in the art to implement or use the contents of this specification. Various modifications to the contents of this specification will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of protection of the contents of this specification. Therefore, the contents of this specification are not limited to the examples and designs described herein, but are consistent with the widest range of principles and novel features disclosed herein.

Claims

1. A low-frequency radiation unit for an integrated phase shifter, arranged on the surface of a reflector (1), characterized in that: include: A plurality of pairs of radiation arms (2), a dielectric substrate (3), a plurality of support seats (4) and a phase shifting assembly (5); each pair of the radiation arms (2) is snap-connected to the dielectric substrate (3), thereby forming a coupling structure distributed at intervals on the surface of the dielectric substrate (3); one side of the dielectric substrate (3) carries each pair of the radiation arms (2), and the other side of the dielectric substrate (3) is fixedly connected to the reflection plate (1) through the support seat (4); each of the support seats (4) is symmetrically distributed with respect to the phase shifting assembly (5), and the phase shifting assembly (5) is connected to the reflection plate (1) and each pair of the radiation arms (2) to provide an excitation signal for each of the radiation arms (2).

2. A low-frequency radiation unit for an integrated phase shifter according to claim 1, characterized in that: The outer periphery of each support seat (4) is provided with a pair of horizontal ribs (41) and a pair of vertical ribs (42), each of the horizontal ribs (41) is located on one of the opposite sides of the support seat (4), and each of the vertical ribs (42) is parallel to each other.

3. A low-frequency radiation unit for an integrated phase shifter according to claim 2, characterized in that: Each of the horizontal ribs (41) is vertically fixedly connected to the dielectric substrate (3), and each of the vertical ribs (42) is vertically fixedly connected to the dielectric substrate (3); each of the horizontal ribs (41) in the same support base (4) is vertically connected to one of the vertical ribs (42), thereby dividing the surface of the dielectric substrate (3) into a plurality of coupling areas that match the radiation arms (2).

4. A low-frequency radiation unit for an integrated phase shifter according to claim 3, characterized in that: A surface of the dielectric substrate (3) away from the support seat (4) is raised at intervals to form a positioning column (31), a limiting buckle (32) and a partition plate (33) matching each of the coupling regions; each of the positioning columns (31) passes through the surface of one of the radiation arms (2); the limiting buckles (32) are arranged in pairs, each of the limiting buckles (32) is located on both sides of each of the partition plates (33), and each of the limiting buckles (32) is snap-connected to one of the radiation arms (2); and each of the partition plates (33) is located between adjacent radiation arms (2).

5. A low frequency radiation unit for integrated phase shifter according to claim 1, characterized in that: The phase shifting component (5) comprises: a feeding balun (51) and a phase shifting dielectric plate (52); one end of the feeding balun (51) passes through the surface of the dielectric substrate (3), and the other end of the feeding balun (51) is fixedly connected to the reflecting plate (1); the phase shifting dielectric plate (52) is movably arranged on the surface of the feeding balun (51), and a plurality of impedance holes (521) are arranged on the surface of the phase shifting dielectric plate (52); when the phase shifting dielectric plate (52) moves relative to the feeding balun (51), the phase of the low-frequency radiation unit changes.

6. A low frequency radiation unit for integrated phase shifter according to claim 5, characterized in that: A feeding network is provided on the surface of the feeding balun (51), the impedance cavity (521) partially overlaps with the feeding network, and each of the radiation arms (2) is electrically connected to the feeding network.

7. A low frequency radiation unit for integrated phase shifter according to claim 5, characterized in that: Each of the radiation arms (2) is in the shape of a square ring, and the inner ring region of each of the radiation arms (2) partially overlaps with one of the coupling regions.

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