Cable-free direct connection phase shifter and green antenna

Abstract

The invention is applicable to the technical field of communication, and provides a cable-free direct-connection phase shifter and a green antenna, the cable-free direct-connection phase shifter comprises at least four groups of phase-shifting feed network assemblies, a shell, a plurality of feed network combining plates and a plurality of main feed end welding seats, each group of phase-shifting feed network assemblies are installed in a storage body of the shell at intervals, and the feed network combining plates are connected with the main feed end welding seats. Each group of phase-shifting feed network assembly is respectively provided with at least one combining part and a feed connection spot welding pin, the outer wall of the shell is provided with a feed contact butt joint groove corresponding to the feed connection spot welding pin, and the combining part opposite to each group of phase-shifting feed network assembly is connected with the feed network combining plate. The feed spot welding pin is connected with a power division network slot of the radiation unit assembly, and the main feed end welding seat is installed on the outer wall of the shell and used for being connected with a main feed line. Therefore, welding procedures are reduced, high integration is achieved, and assembling is convenient and fast.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a cable-free direct-connected phase shifter and a green antenna. Background Art

[0002] With the rapid development of mobile communication technology, base station antennas, as key components in wireless communication systems, have a significant impact on signal coverage, communication quality, and system capacity. Phase shifters, crucial components in base station antennas, adjust the phase differences between radiating elements in the antenna array to achieve beamforming, pattern control, and interference suppression, playing a crucial role in improving the overall performance of base station antennas.

[0003] Current base station antennas typically use traditional welding to weld their components together. This makes assembly difficult, especially when the number of components is large, and the degree of integration is low. To meet communication needs in diverse scenarios, base station antennas need to be more integrated. Integrated antennas can reduce weight and size, minimizing base station footprint and costs, making them easier to deploy in densely populated urban areas and indoor environments.

[0004] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide a cable-free direct-connected phase shifter and a green antenna, which can reduce the welding process, achieve high integration and convenient assembly.

[0006] In order to achieve the above-mentioned objectives, the present invention provides a cable-free direct-connected phase shifter, comprising at least four groups of phase-shifting feed network components, a shell, several feed network combiners and several main feed end welding seats, each group of the phase-shifting feed network components is installed at intervals in the storage body of the shell, each group of the phase-shifting feed network components is respectively provided with at least one combiner and a feed contact welding foot, the outer wall of the shell is provided with a feed contact docking groove corresponding to the feed contact welding foot, the combining portion relative to each group of the phase-shifting feed network components is connected to the feed network combiner, the feed contact welding foot is connected to the power division network pair slot of the radiation unit assembly, and the main feed end welding seat is installed on the outer wall of the shell for connecting the main feeder.

[0007] According to the cable-free direct-connected phase shifter of the present invention, the inner wall of the shell is provided with a guide rail, the phase-shifting feed network assembly is provided with a guide groove adapted to the guide rail, and the guide groove is slidably connected to the guide rail.

[0008] According to the cable-free direct-connected phase shifter of the present invention, the phase-shifting feed network component includes a phase-shifting feed network and a phase-shifting medium. The phase-shifting medium is arranged in pairs on two opposite sides of the phase-shifting feed network, and the phase-shifting medium is arranged to be movable relative to the phase-shifting feed network.

[0009] According to the cable-free direct-connected phase shifter of the present invention, the combining portion of the phase-shifting feed network component is provided with a feed network combining portion welding foot, and the feed network combining plate is plugged into the feed network combining portion welding foot to feed and connect adjacent phase-shifting feed network components.

[0010] According to the cable-free direct-connected phase shifter of the present invention, a plurality of partitions are provided in the storage body to form a plurality of independent chambers, and each group of the phase-shifting feed network components is respectively installed in a plurality of the chambers, and the partitions and the shell are provided with junction plate avoidance holes at the welding feet of the feed network junction part.

[0011] According to the cable-free direct-connected phase shifter of the present invention, it further includes a transmission connecting member, a guide column is provided on one side of the transmission connecting member, a transmission member mounting groove corresponding to the guide column is provided in the phase-shifting feed network assembly, the transmission connecting member passes through the slot above the shell, the guide column is inserted into the transmission member mounting groove, and the transmission connecting member drives the phase-shifting medium to slide relative to the phase-shifting feed network.

[0012] According to the cable-free direct-connected phase shifter of the present invention, it also includes a positioning pin, the shell is provided with a positioning pin through-hole, the phase-shifting feed network assembly is provided with a feed network positioning hole corresponding to the positioning pin through-hole, the positioning pin passes through the positioning pin through-hole on the shell and the feed network positioning hole of the phase-shifting feed network assembly respectively and passes through the shell, and the positioning pin is used to limit the phase-shifting feed network assembly.

[0013] In order to achieve another object of the present invention, the present invention also provides a green antenna, comprising a substrate, a radiation unit assembly and any one of the above-mentioned cable-free direct-connected phase shifters, each of which is arranged in parallel on the substrate.

[0014] According to the green antenna of the present invention, the radiation unit assembly includes at least one radiation unit and a power dividing network, the radiation unit is welded to the power dividing network, the power dividing network is provided with two symmetrical power dividing network pair slots, and the two power dividing network pair slots are respectively connected to the feeding contact welding feet of the phase-shifted feed network assembly.

[0015] According to the green antenna of the present invention, the radiation units are sequentially arranged on the radiation unit assembly hole group of the shell, and the cable-free direct-connected phase shifter is connected to the substrate by a fixed rivet nut.

[0016] The present invention provides a cable-free direct-connect phase shifter and green antenna. Multiple phase-shifting feeder network assemblies are disposed within the housing of the cable-free direct-connect phase shifter. Two adjacent phase-shifting feeder network assemblies are connected via a feeder network combiner to achieve combined circuit connection. Each radiating element is connected to the phase-shifting feeder network within the phase-shifting network assembly via feed contact welds within each phase-shifting feeder network assembly. No cable welding is required between the radiating element and the phase-shifting feeder network assembly, reducing losses in network transmission and improving the level of integration. Thus, the cable-free direct-connect phase shifter and green antenna of the present invention reduce welding steps, achieve high integration, and facilitate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is a schematic structural diagram of a cable-free direct-connected phase shifter provided in Embodiment 1 of the present invention;

[0018] Figure 2 1 is a schematic cross-sectional view of the cable-free direct-connect phase shifter provided in the first embodiment of the present invention;

[0019] Figure 3 1 is a schematic structural diagram of a housing of a cable-free direct-connected phase shifter provided in Embodiment 1 of the present invention;

[0020] Figure 4 This is a structural diagram of a phase-shift feed network assembly without a cable-connected direct-phase shifter provided in Example 1 of the present invention;

[0021] Figure 5 1 is a schematic structural diagram of a transmission connector for a cable-free direct-connected phase shifter provided in Embodiment 1 of the present invention;

[0022] Figure 6 1 is a schematic structural diagram of a radiation unit assembly of a green antenna provided in a second embodiment of the present invention;

[0023] Figure 7 It is a structural diagram of a green antenna provided in the second embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] It should be noted that references to "one embodiment," "an embodiment," "an example," etc., in this specification indicate that the described embodiment may include specific features, structures, or characteristics, but not every embodiment must include these specific features, structures, or characteristics. Furthermore, such references do not necessarily refer to the same embodiment. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, whether or not explicitly described, it is understood that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.

[0026] like Figures 1-2 As shown, the present invention provides a cable-free direct-connected phase shifter 100, comprising at least four groups of phase-shifting feed network components 10, a shell 30, a plurality of feed network combiner plates 20 and a plurality of main feed end welding seats 40. The number of main feed end welding seats 40 can be multiple, and the number of feed network combiner plates 20 can also be multiple, and the number is configured according to specific needs. The shape of the shell 30 matches the shape of the phase-shifting feed network component 10. The shell 30 can be a long flat-plate-shaped connected shell 30. Each group of the phase-shifting feed network components 10 is installed at intervals in the storage body of the shell 30. Each group of the phase-shifting feed network components 10 and the shell 30 are detachable. Of course, a plurality of partitions 32 can be provided in the storage body to form a plurality of independent chambers 33. Each group of the phase-shifting feed network components 10 is installed at intervals in the chamber 33. Each group of the phase-shifting feed network components 10 are respectively provided with at least one combining part and a feeding contact welding foot 11, and the outer wall of the shell 30 is provided with a feeding contact docking groove 31 corresponding to the feeding contact welding foot 11, and the combining part relative to each group of the phase-shifting feeding network components 10 is connected to the feeding network combining plate 20, and multiple groups of phase-shifting feeding network components 10 are distributed at intervals in the receiving body and the positions of the combining parts between each group of phase-shifting feeding network components 10 correspond to each other, which facilitates the feeding network combining plate 20 to connect the combining parts at relative positions, realize the combining connection between the phase-shifting feeding network components 10, and improve the degree of integration. The feeding contact welding foot 11 is connected to the power division network of the radiation unit component 300 to the slot 303, and the main feed end welding seat 40 is installed on the outer wall of the shell 30 for connecting the main feed line, reducing the welding process and facilitating device assembly.

[0027] Preferably, the inner wall of the shell 30 is provided with a guide rail 35, and the phase-shifting feed network assembly 10 is provided with a guide groove 12 adapted to the guide rail 35. The guide groove 12 is slidably connected to the guide rail 35. The sliding connection between the guide groove 12 and the guide rail 35 can slide the phase-shifting feed network assembly 10 into the corresponding storage body or chamber 33.

[0028] Furthermore, a welding section 36 is provided on the outer wall of the shell 30 , and the main feed end welding seat 40 is welded to the welding section 36 ; the main feed end welding seat 40 can be welded to the welding section 36 using a laser welding process.

[0029] Preferably, the phase-shifting feed network assembly 10 includes a phase-shifting feed network 13 and a phase-shifting medium 14. The combining portion of the phase-shifting feed network 13 of the phase-shifting feed network assembly 10 is provided with a feed network combining portion welding foot 16. The feed network combining plate 20 is used to be plugged into the feed network combining portion welding foot 16 to feed each group of phase-shifting feed network assemblies 10. In this embodiment, the feed network combining plate 20 is respectively inserted into the cavity 33 from the combining plate avoidance hole 34 on the upper side of the housing 30 and is plugged into the feed network combining portion welding foot 16 of the upper and lower layers of the phase-shifting feed network assembly 10, so that the upper and lower layers are connected. The two-layer phase-shifting feed network assembly 10 is combined and connected via a feed network combiner 20. The phase-shifting media 14 are arranged in pairs on opposite sides of the phase-shifting feed network 13. The phase-shifting media 14 are movable relative to the phase-shifting feed network 13. The phase-shifting media 14 move relative to the phase-shifting feed network 13 to adjust the phase of the antenna output signal. Specifically, a plurality of phase-shifting media 14 are arranged at intervals on opposite sides of the phase-shifting feed network 13. The phase of the antenna output signal is adjusted by movable adjustment of the phase-shifting media 14 relative to the phase-shifting feed network 13.

[0030] Preferably, the combining portion of the phase-shifting feeding network component 10 is provided with a feeding network combining portion welding foot 16, and the feeding network combining plate 20 is plugged into the feeding network combining portion welding foot 16 to feed and connect the adjacent phase-shifting feeding network components 10, thereby reducing the welding process.

[0031] Preferably, a plurality of partitions 32 are provided in the storage body to form a plurality of independent chambers 33, and each group of the phase-shifted feed network components 10 is respectively installed in a plurality of the chambers 33, and the partitions 32 and the housing 30 are provided with a junction plate avoidance hole 34 at the welding foot 16 of the feed network junction part. The junction plate avoidance hole 34 is located at the installation position of the feed network junction plate 20, that is, the junction plate avoidance hole 34 can reserve an operating space for the feed network junction plate 20, such as Figure 3 This embodiment specifically includes two sets of phase-shifting feed network assemblies 10. One or more partitions 32 divide the container within the housing 30 into two independent chambers 33 arranged side by side. Corresponding junction plate avoidance holes 34 are provided on the partitions 32 and the housing 30 at locations corresponding to the installation locations of the feed network junction plate 20. This facilitates the insertion of the feed network junction plate 20 through the junction plate avoidance holes 34 on the outer wall of the housing 30 into the chambers 33 and connection with the junction portion of the phase-shifting feed network assembly 10. Of course, in other examples, the multiple chambers 33 can be arranged side by side or stacked one on top of the other.

[0032] Preferably, if Figure 6As shown, it also includes a transmission connection member 60, a guide column 61 is provided on one side of the transmission connection member 60, and a transmission member mounting groove 15 corresponding to the guide column 61 is provided in the phase-shifting feed network assembly 10. The transmission connection member 60 passes through the slot above the housing 30, and the guide column 61 is inserted into the transmission member mounting groove 15. The transmission connection member 60 drives the phase-shifting medium 14 to slide relative to the phase-shifting feed network 13. When the transmission connection member 60 slides along the guide rail 35 of the housing 30, the guide column 61 on the transmission connection member 60 drives the phase-shifting medium 14 to slide relative to the phase-shifting feed network 13 to achieve phase shifting.

[0033] Preferably, it also includes a positioning pin 50, the shell 30 is provided with a positioning pin through hole 38, the phase-shifting feed network assembly 10 is provided with a feed network positioning hole 17 corresponding to the positioning pin through hole 38, the positioning pin 50 passes through the positioning pin through hole 38 on the shell 30 and the feed network positioning hole 17 of the phase-shifting feed network assembly 10 respectively and passes through the shell 30, the positioning pin 50 is used to limit the phase-shifting feed network assembly 10, and the positioning pin 50 limits and fixes multiple groups of phase-shifting feed network assemblies 10 on the shell 30.

[0034] Figures 1-2 The cable-free direct-connected phase shifter 100 provided in the first embodiment of the present invention is shown. Figures 3 to 6 As shown, it includes at least four groups of phase-shifting feed network components 10, several feed network junction plates 20, a shell 30, a positioning pin 50, several main feed end welding seats 40 and a transmission connector 60. The number of the main feed end welding seats 40 in this embodiment can be multiple, and the number of feed network junction plates 20 can also be multiple. The number is configured according to specific needs. The shape of the shell 30 matches the shape of the phase-shifting feed network component 10. The shell 30 can be a long flat-plate connected shell 30. Each group of phase-shifting feed network components 10 can be detachably installed in the housing of the shell 30 and spaced apart. Partitioned distribution, specifically, a plurality of partitions 32 may be provided in the receiving body of the shell 30 to form a plurality of independent chambers 33, each group of phase-shifting feed network components 10 is respectively installed in each chamber 33, a plurality of feed network combiner plates 20 are respectively connected to the relative combining parts between each group of phase-shifting feed network components 10, a main feed end welding seat 40 is installed on the outer wall of the shell 30 for connecting the main feeder, a feed contact docking slot 31 is provided on the outer wall of the shell 30, and the radiation unit assembly 300 is connected to the feed contact welding foot 11 of the phase-shifting feed network component 10 through the power splitter board to the slot. The plurality of groups of phase-shifting feed network components 10 are distributed at intervals in the receiving body and the positions of the combining parts between each group of phase-shifting feed network components 10 correspond to each other, so that the feed network combiner plates 20 can connect the combining parts at relative positions to realize combining connection between the phase-shifting feed network components 10, thereby improving the degree of integration, reducing the welding process, and facilitating device assembly.

[0035] The present invention provides a green antenna, specifically, as Figure 7 As shown, the green antenna provided in the second embodiment of the present invention includes a substrate 200, a radiation unit assembly 300 and the above-mentioned cable-free direct-connected phase shifter 100. In this embodiment, there are multiple radiation unit assemblies 300 and cable-free direct-connected phase shifters 100, and each of the cable-free direct-connected phase shifters 100 is arranged in parallel on the substrate 200.

[0036] Preferably, the radiating element assembly 300 includes at least one radiating element 301 and a power splitting network 302. The radiating element 301 is welded to the power splitting network 302. The power splitting network 302 is provided with two symmetrical power splitting network pair slots 303. The two power splitting network pair slots 303 are respectively connected to the feed contact welding pins 11 of the phase-shifting feed network assembly 10. Specifically, the radiating element assembly 300 is sequentially assembled on the radiating element assembly assembly hole group 37 of the housing 30. The power splitting network pair slots 303 on the power splitting network 302 are directly connected to the feed contact welding pins 11 on the phase-shifting feed network assembly 10. This completes the assembly of the cableless direct-connection phase shifter 100 and the radiating element assembly 300.

[0037] Preferably, the radiation unit 301 is sequentially arranged on the radiation unit assembly hole group 37 of the shell 30, and the cable-free direct-connected phase shifter 100 and the substrate 200 are connected by a fixed rivet nut 39. Specifically, the assembled cable-free direct-connected phase shifter 100 and the substrate 200 are fixed by the fixed rivet nut 39 on the shell 30 to achieve a stable connection between the cable-free direct-connected phase shifter 100 and the substrate 200; by sliding the transmission connection 60, the synchronous phase shifting of the cable-free direct-connected phase shifter 100 can be achieved.

[0038] Specifically, in practical applications, the assembly process of the green antenna of the second embodiment of the present invention is as follows:

[0039] 1. First, slide each group of phase-shifting feed network components 10 into each chamber 33 of the housing 30, and insert the feed network combiner 20 into the combiner avoidance hole 34 to achieve combined connection of each phase-shifting feed network component 10.

[0040] 2. Pass the positioning pins 50 through the housing 30 and the phase-shifting feed network assembly 10 respectively and penetrate through both ends of the housing 30 to achieve the limited fixation of the phase-shifting feed network assembly 10. At the same time, pass the transmission connecting member 60 through the slot on the housing 30 and sleeve it into the transmission member mounting slot 15 in the phase-shifting feed network assembly 10. Weld the main feed end welding seat 40 to the welding section 36 of the housing 30.

[0041] 3. Assemble the radiation unit assembly 300 on the radiation unit assembly assembly hole group 37 of the housing 30 in sequence, and connect the power division network pair slot 303 on the power division network 302 with the feeding contact welding foot 11 on the phase-shift feeding network assembly 10 to achieve direct connection.

[0042] 4. Fix the cable-free direct-connected phase shifter 100 assembled with the radiation unit assembly 300 to the substrate 200 through the fixed rivet nuts 39 on the housing 30 to achieve a stable connection between the cable-free direct-connected phase shifter 100 and the substrate 200, completing the assembly of the green antenna.

[0043] In summary, the present invention provides a cable-free direct-connect phase shifter and green antenna. Multiple phase-shifting feeder network assemblies are disposed within the housing of the cable-free direct-connect phase shifter. Two adjacent phase-shifting feeder network assemblies are connected via a feeder combiner plate to achieve combined circuit connection. Each radiating element is connected to the phase-shifting feeder network within the phase-shifting network assembly via feed contact welds within each phase-shifting feeder network assembly. No cable welding is required between the radiating element and the phase-shifting feeder network assembly, reducing losses in network transmission and improving the level of integration. Thus, the cable-free direct-connect phase shifter and green antenna of the present invention reduce welding steps, achieve high integration, and facilitate assembly.

[0044] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A cable-free direct-connect phase shifter, characterized in that: It includes at least four groups of phase-shifting feed network components, a shell, several feed network combiners and several main feed end welding seats. Each group of the phase-shifting feed network components is installed at intervals in the storage body of the shell. Each group of the phase-shifting feed network components is respectively provided with at least one combiner and a feed contact welding foot. The outer wall of the shell is provided with a feed contact docking groove corresponding to the feed contact welding foot. The relative combiner of each group of the phase-shifting feed network components is connected to the feed network combiner, and the feed contact welding foot is connected to the power division network slot of the radiation unit component. The main feed end welding seat is installed on the outer wall of the shell for connecting the main feeder.

2. The cable-free direct-connect phase shifter according to claim 1, wherein: The inner wall of the shell is provided with a guide rail, and the phase-shifting feed network component is provided with a guide groove adapted to the guide rail, and the guide groove is slidably connected to the guide rail.

3. The cable-free direct-connect phase shifter according to claim 1, wherein: The phase-shifting feed network component includes a phase-shifting feed network and a phase-shifting medium. The phase-shifting medium is arranged in pairs on two opposite sides of the phase-shifting feed network, and the phase-shifting medium is arranged to move relative to the phase-shifting feed network.

4. The cable-free direct-connect phase shifter according to claim 3, wherein: The combining part of the phase-shifting feeding network component is provided with a feeding network combining part welding foot, and the feeding network combining plate is plugged into the feeding network combining part welding foot to feed and connect the adjacent phase-shifting feeding network components.

5. The cable-free direct-connect phase shifter according to claim 4, wherein: A plurality of partitions are provided in the storage body to form a plurality of independent chambers, and each group of the phase-shifting feed network components is respectively installed in a plurality of the chambers. The partitions and the shell are provided with junction plate avoidance holes at the welding feet of the feed network junction part.

6. The cable-free direct-connect phase shifter according to claim 3, wherein: It also includes a transmission connecting member, a guide column is provided on one side of the transmission connecting member, a transmission member mounting groove corresponding to the guide column is provided in the phase-shifting feed network assembly, the transmission connecting member passes through the slot hole above the shell, the guide column is inserted into the transmission member mounting groove, and the transmission connecting member drives the phase-shifting medium to slide relative to the phase-shifting feed network.

7. The cable-free direct-connect phase shifter according to claim 1, wherein: It also includes a positioning pin, the shell is provided with a positioning pin through hole, the phase-shifting feed network assembly is provided with a feed network positioning hole corresponding to the positioning pin through hole, the positioning pin passes through the positioning pin through hole on the shell and the feed network positioning hole of the phase-shifting feed network assembly respectively and passes through the shell, and the positioning pin is used to limit the phase-shifting feed network assembly.

8. A green antenna, characterized in that: The invention comprises a substrate, a radiation unit assembly and at least one cable-free direct-connection phase shifter according to any one of claims 1 to 7, wherein each of the cable-free direct-connection phase shifters is arranged in parallel on the substrate.

9. The green antenna according to claim 8, characterized in that The radiation unit assembly includes at least one radiation unit and a power dividing network. The radiation unit is welded to the power dividing network. The power dividing network is provided with two symmetrical power dividing network pair slots. The two power dividing network pair slots are respectively connected to the feeding contact welding feet of the phase-shifting feed network assembly.

10. The green antenna according to claim 8, characterized in that The radiation units are sequentially arranged on the radiation unit assembly hole group of the shell, and the cable-free direct-connected phase shifter is connected to the substrate by fixing rivet nuts.

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