CN118073816A - Active antenna, base station and wireless communication system - Google Patents
Active antenna, base station and wireless communication system Download PDFInfo
- Publication number
- CN118073816A CN118073816A CN202211470608.1A CN202211470608A CN118073816A CN 118073816 A CN118073816 A CN 118073816A CN 202211470608 A CN202211470608 A CN 202211470608A CN 118073816 A CN118073816 A CN 118073816A
- Authority
- CN
- China
- Prior art keywords
- active
- circuit board
- component
- antenna
- active antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 14
- 238000012360 testing method Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Transceivers (AREA)
Abstract
The application provides an active antenna, a base station and a wireless communication system, wherein the active antenna comprises a shell, an antenna housing and an integrated device, the antenna housing and the shell are covered to form a containing cavity, the integrated device is arranged in the containing cavity, the integrated device comprises a circuit board, an active module and a passive module, and the active module and the passive module are both arranged on the circuit board and are in signal connection with the circuit board. The active antenna integrates the active module and the passive module inside the active antenna on the circuit board and is in signal connection with the circuit board, so that the structure of the active antenna is greatly simplified, a large number of connectors are omitted, the assembly efficiency is improved, and the manufacturing cost is reduced. And moreover, the whole active antenna is provided with only one waterproof surface, so that the water inlet risk of the active antenna is reduced, and the difficulty in positioning the air leakage point under the condition of air leakage during an airtight test is also reduced.
Description
Technical Field
The present application relates to the field of antenna communications devices, and in particular, to an active antenna, a base station, and a wireless communications system.
Background
With the rapid development of wireless communication technology, the integration level of wireless communication devices is further improved. In this scenario, the power consumption of a single device is increasing, and the electricity fee of the 5G base station becomes a new pain point for operators. In response to the power consumption reduction requirement of the 5G base station of the wireless communication device, it is common at present to use an active antenna technology with a larger antenna area. The number of antenna arrays of a passive unit in the existing equipment is doubled or increased by a certain number on the basis of the existing 5G equipment so as to improve the gain of an active antenna, and the loss of the whole equipment is reduced when the gain of the active antenna is increased, so that the power consumption of the whole equipment is reduced. However, as the number of parts increases, the number of connectors in the active antenna increases, the connection relationship is complex, the weight and the volume increase, and the difficulty of carrying and installing increases.
In addition, in order to accommodate a large antenna, referring to fig. 1, fig. 1 is a prior art active antenna, which includes a housing 11, a radio frequency large board assembly 21, a power supply assembly 31, a shield assembly 41, a middle frame structure 51, an antenna assembly 61, and a radome 71. The prior art implementation of the active antenna is achieved by using a larger size central frame structure 51. However, the drawbacks with this approach are: 1. the whole assembly is complex, one middle frame structural member 51 is added, the assembly between the middle frame structural member and the shell 11 is increased by about 20 screws, and the assembly efficiency of the whole machine is reduced. Secondly, a middle frame structural member 51 is added, a large waterproof surface is added to the whole active antenna, one waterproof surface between the shell 11 and the middle frame structural member 51 is the waterproof surface between the middle frame structural member 51 and the radome 71, so that the water inflow risk of the active antenna is increased, and meanwhile, the difficulty in positioning an air leakage point is also increased if an air leakage condition occurs during an air tightness test because of the two waterproof surfaces.
In view of the foregoing, there is a need for a new active antenna, base station and wireless communication system that addresses or at least alleviates the above-mentioned technical drawbacks.
Disclosure of Invention
The application mainly aims to provide an active antenna, a base station and a wireless communication system, and aims to solve the technical problems of complex structure, low assembly efficiency, difficult installation and transportation and high waterproof difficulty of the active antenna in the prior art.
In order to achieve the above object, according to one aspect of the present application, there is provided an active antenna, including a housing, a radome, and an integrated device, wherein the radome and the housing are covered to form a receiving cavity, the integrated device is disposed in the receiving cavity, and the integrated device includes a circuit board, an active module, and a passive module, and the active module and the passive module are both mounted on the circuit board and are in signal connection with the circuit board.
In an embodiment, the circuit board includes a top surface and a bottom surface opposite the top surface, the active module is at least partially connected to the bottom surface of the circuit board, the passive module includes a first passive component connected to the top surface of the circuit board and a second passive component connected to the bottom surface of the circuit board.
In an embodiment, the active module includes a first active component and a second active component, the top surface is provided with an antenna area and a device area, the first active component is connected to the bottom surface of the circuit board, the second active component is connected to the device area, and the first active component is connected to the antenna area.
In an embodiment, a dielectric filter area is disposed on the bottom surface, a power amplifier sub-card area, a transceiver and an intermediate frequency area, a baseband area and a power supply area, the first active component includes a power amplifier sub-component, a transceiver sub-component, an intermediate frequency circuit, a baseband circuit and a power supply sub-component, the second passive component includes a dielectric filter, the dielectric filter is connected to the dielectric filter area, the power amplifier sub-component is connected to the power amplifier sub-card area, the transceiver sub-component and the intermediate frequency circuit are connected to the transceiver and the intermediate frequency area, the baseband circuit is connected to the baseband area, and the power supply sub-component is connected to the power supply area.
In one embodiment, the circuit board comprises at least two sub-circuit boards, and the at least two sub-circuit boards are connected through a connector or a flexible cable signal.
In an embodiment, the housing includes a mounting plate and heat dissipation teeth disposed on a side of the mounting plate facing away from the radome, the mounting plate and the radome cooperate to form the accommodating cavity, and the size of the mounting plate is larger than that of the circuit board.
In an embodiment, the antenna housing is provided with a first mounting hole, the mounting plate is provided with a second mounting hole, and the mounting plate and the antenna housing are connected through a threaded fastener.
In an embodiment, the active antenna further comprises a bottom out connector connected to the bottom surface.
According to another aspect of the present application, there is also provided a base station comprising the active antenna described above.
According to still another aspect of the present application, there is also provided a wireless communication system including the above base station.
In the above scheme, the active antenna comprises a housing, a radome and an integrated device, wherein the radome and the housing are covered to form a containing cavity, the integrated device is arranged in the containing cavity and comprises a circuit board, an active module and a passive module, and the active module and the passive module are both arranged on the circuit board and are in signal connection with the circuit board. The scheme integrates the active module and the passive module in the active antenna on the circuit board and is in signal connection with the circuit board, and signal transmission among components in the passive module, among components in the active module and between the active module and the passive module is realized through a circuit on the circuit board, so that the structure of the active antenna is greatly simplified, a large number of connectors are omitted, the assembly efficiency is improved, and the manufacturing cost is reduced. In addition, the shell is extended and enlarged, the periphery of the shell is directly connected with the radome, and the integrated device is arranged in the accommodating cavity formed by the shell and the radome, so that only the matching surface of the radome and the shell is required to be waterproof, and the whole active antenna has only one waterproof surface. The waterproof design is only needed to be carried out on the matching surface of the shell and the antenna housing, so that one waterproof surface is reduced, the water inlet risk of the active antenna is reduced, and the difficulty in positioning the air leakage point under the condition of air leakage during airtight test is also reduced.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an explosion structure of an active antenna in the prior art;
Fig. 2 is a schematic diagram of an exploded structure of an active antenna according to an embodiment of the present application;
Fig. 3 is a schematic perspective view of an active antenna according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a circuit board according to an embodiment of the application;
FIG. 5 is a schematic diagram of another structure of a circuit board according to an embodiment of the application;
FIG. 6 is a schematic layout of a top surface of a circuit board according to an embodiment of the application;
FIG. 7 is a schematic diagram of another layout of the top surface of a circuit board according to an embodiment of the application;
FIG. 8 is a schematic layout of a bottom surface of a circuit board according to an embodiment of the application;
fig. 9 is a schematic structural diagram of a bottom-out connector and a circuit board according to an embodiment of the present application.
Description of prior art reference numerals of fig. 1:
11. The antenna comprises a shell, 21, a radio frequency large board assembly, 31, a power supply assembly, 41, a shielding cover assembly, 51, a middle frame structural member, 61, an antenna assembly, 71 and an antenna cover.
Reference numerals in fig. 2 to 9 illustrate:
10. a housing; 20. a circuit board; 201. a first veneer; 202. a second veneer; 203. a third veneer; 30. an antenna housing; 40. a top surface; 401. an antenna region; 402. a device region; 50. a bottom surface; 501. a dielectric filter region 502 and a power amplifier sub-card region; 503. a transceiver and an intermediate frequency region; 504. a baseband region; 505. a power supply region; 60. and the connector is arranged at the bottom.
The achievement of the object, functional features and advantages of the present application will be further described with reference to the drawings in connection with the embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application.
It should be noted that all directional indicators (such as upper and lower … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Moreover, the technical solutions of the embodiments of the present application may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the embodiments, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present application.
Referring to fig. 2 to 9, according to an aspect of the present application, there is provided an active antenna including a housing 10, a radome 30, and an integrated device, wherein the radome 30 and the housing 10 are covered to form a receiving cavity, the integrated device is disposed in the receiving cavity, and the integrated device includes a circuit board 20, an active module and a passive module, and the active module and the passive module are both mounted on the circuit board 20 and are in signal connection with the circuit board 20.
In the above embodiment, the active antenna includes the housing 10, the radome 30 and the integrated device, the radome 30 and the housing 10 are covered to form the accommodating cavity, the integrated device is disposed in the accommodating cavity, and the integrated device includes the circuit board 20, the active module and the passive module, which are both mounted on the circuit board 20 and connected with the circuit board 20 through signals. The embodiment integrates the active module and the passive module in the active antenna on the circuit board 20 and is in signal connection with the circuit board 20, and signal transmission among components in the passive module, among components in the active module and between the active module and the passive module is realized through a circuit on the circuit board 20, so that the structure of the active antenna is greatly simplified, a large number of connectors are omitted, the assembly efficiency is improved, and the manufacturing cost is reduced. In addition, the shell 10 is extended and enlarged, the whole shell 10 is integrally formed, the periphery of the shell 10 is directly connected with the radome 30, and the integrated device is arranged in a containing cavity formed by the shell 10 and the radome 30, so that only the matching surface of the radome 30 and the shell 10 is required to be waterproof, and the whole active antenna has only one waterproof surface, compared with the middle frame structural member 51 in the prior art, the assembly of the middle frame structural member 51 and screws is reduced, the assembly efficiency is improved, the weight and thickness of the whole machine are reduced, the weight of the whole machine can be reduced by about 30 percent compared with the prior art, the thickness size of the whole machine can be further reduced, and the installation and the transportation of the active antenna are convenient; the waterproof design is only needed for the matching surface of the shell 10 and the radome 30, compared with two waterproof surfaces in the prior art, one waterproof surface is reduced, the water inlet risk of the active antenna is reduced, and meanwhile, the difficulty of positioning the air leakage point under the condition of air leakage in the airtight test is also reduced because of only one waterproof surface.
Referring to fig. 6 and 7, in one embodiment, the circuit board 20 includes a top surface 40 and a bottom surface 50 opposite the top surface 40, the active module is at least partially connected to the bottom surface 50 of the circuit board 20, and the passive module includes a first passive component connected to the top surface 40 of the circuit board 20 and a second passive component connected to the bottom surface 50 of the circuit board 20. The active module includes a first active component and a second active component, the first active component is connected to the bottom surface 50 of the circuit board 20, the second active component is connected to the device region 402, and the first active component is connected to the antenna region 401, and the antenna region 401 is disposed on the top surface 40. The antenna region 401 is used for connection with passive components, and the device region 402 is used for connection with active components, and as for the positions of the antenna region 401 and the device region 402, it may be set according to actual needs. As shown in fig. 4 and 5, the device region 402 may be disposed at a middle position of the top surface 40 or at a side position of the top surface 40. The layout of the top surface 40 and the bottom surface 50 of the circuit board 20 in this embodiment can be flexibly set, and besides passive components, a part of devices with lower shielding requirements can be arranged on the top surface 40, so that the effect of highest overall space utilization rate can be achieved.
Referring to fig. 8, in one embodiment, a dielectric filter area 501 is disposed on the bottom surface 50, a power amplifier sub-card area 502, a transceiver and intermediate frequency area 503, a baseband area 504, and a power supply area 505, the first active component includes a power amplifier sub-component, a transceiver sub-component, an intermediate frequency circuit, a baseband circuit, and a power supply sub-component, the second passive component includes a dielectric filter, the dielectric filter is connected to the dielectric filter area 501, the power amplifier sub-component is connected to the power amplifier sub-card area 502, the transceiver sub-component and the intermediate frequency circuit are connected to the transceiver and intermediate frequency area 503, the baseband circuit is connected to the baseband area 504, the power supply sub-component is connected to the power supply area 505, and the corresponding areas are respectively used for connecting corresponding components.
Referring to fig. 4 and 5, in one embodiment, the circuit board 20 includes at least two sub-circuit boards 20, and the at least two sub-circuit boards 20 are signal-connected by a connector or a flexible cable. In this embodiment, the circuit board 20 may be divided into two boards, including the first board 201 and the second board 202, or may be divided into three boards, including the first board 201, the second board 202 and the third board 203, so that the difficulty in processing the large-sized circuit board 20 is reduced. It should be noted that the present embodiment does not limit the number of divisions of the circuit board 20, and those skilled in the art may set the number according to actual needs.
Referring to fig. 3, in one embodiment, the housing 10 includes a mounting plate and heat dissipating teeth disposed on a side of the mounting plate facing away from the radome 30, the mounting plate and radome 30 cooperate to form a receiving cavity, and the size of the mounting plate is larger than the size of the circuit board 20. Compared with the prior art, in this embodiment, the outer shell 10 is extended outwards to form a larger-sized outer shell 10 (or mounting plate), the mounting plate and the radome 30 cooperate to form a containing cavity for placing the circuit board 20, the outer shell 10 plays the role of the middle frame structural member 51 in the prior art, and the heat dissipation teeth play the role of heat dissipation.
Referring to fig. 3, in one embodiment, a first mounting hole is provided in the radome 30, a second mounting hole is provided in the mounting plate, and the mounting plate and the radome 30 are connected by a threaded fastener. The connection is convenient for installation and disassembly through the threaded fastener. Specifically, the number of threaded fasteners is multiple, and the threaded fasteners are spaced around the radome 30 and mounting plate.
Referring to fig. 9, in one embodiment, the active antenna further includes a bottom out connector 60, the bottom out connector 60 being connected to the bottom surface 50. The bottom-out connector 60 is disposed on the bottom surface 50 of the circuit board 20, and can flexibly adapt to various application scenarios by heightening the height of the bottom-out connector 60.
According to another aspect of the present application, the present application also provides a base station, which includes the active antenna described above. The base station includes all the technical solutions of all the active antenna embodiments, so at least has all the beneficial effects brought by all the technical solutions, which are not described in detail herein.
According to still another aspect of the present application, there is also provided a wireless communication system including the above base station. The wireless communication system includes all the technical solutions of all the base station embodiments, so at least has all the beneficial effects brought by all the technical solutions, which are not described in detail herein.
The foregoing is merely an alternative embodiment of the present application, and is not intended to limit the scope of the present application, and various combinations of the active components and passive components may be possible, and all combinations are included in the scope of the claims. All the equivalent structural changes made by the content of the specification and the drawings of the application or the direct/indirect application in other related technical fields are included in the patent protection scope of the application under the technical conception of the application.
Claims (10)
1. The utility model provides an active antenna, its characterized in that includes shell, radome and integrated device, the radome with the shell lid closes and forms and holds the chamber, integrated device set up in hold the intracavity, integrated device includes circuit board, active module and passive module, active module with passive module all install in the circuit board and with circuit board signal connection.
2. The active antenna of claim 1, wherein the circuit board comprises a top surface and a bottom surface opposite the top surface, the active module being at least partially connected to the bottom surface of the circuit board, the passive module comprising a first passive component connected to the top surface of the circuit board and a second passive component connected to the bottom surface of the circuit board.
3. The active antenna of claim 2, wherein the active module comprises a first active component and a second active component, the top surface having an antenna area and a device area disposed thereon, the first active component being coupled to the bottom surface of the circuit board, the second active component being coupled to the device area, the first active component being coupled to the antenna area.
4. An active antenna according to claim 3, wherein the bottom surface is provided with a dielectric filter region, a power amplifier sub-card region, a transceiver and intermediate frequency region, a baseband region and a power supply region, the first active component comprises a power amplifier sub-component, a transceiver sub-component, an intermediate frequency circuit, a baseband circuit and a power supply sub-component, the second passive component comprises a dielectric filter, the dielectric filter is connected to the dielectric filter region, the power amplifier sub-component is connected to the power amplifier sub-card region, the transceiver sub-component and the intermediate frequency circuit are connected to the transceiver and intermediate frequency region, the baseband circuit is connected to the baseband region, and the power supply sub-component is connected to the power supply region.
5. The active antenna of claim 1, wherein the circuit board comprises at least two sub-circuit boards, the at least two sub-circuit boards being signal connected by a connector or flexible cable.
6. The active antenna of any one of claims 1-5, wherein the housing comprises a mounting plate and heat dissipating teeth disposed on a side of the mounting plate facing away from the radome, the mounting plate and the radome cooperate to form the receiving cavity, and the size of the mounting plate is larger than the size of the circuit board.
7. The active antenna of any one of claims 1-5, wherein a first mounting hole is provided on the radome, a second mounting hole is provided on the mounting plate, and the mounting plate and the radome are connected by a threaded fastener.
8. The active antenna of any one of claims 1-5, further comprising a bottom out connector connected to the bottom surface.
9. A base station, characterized in that it comprises an active antenna according to any one of claims 1-8.
10. A wireless communication system, comprising the base station of claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211470608.1A CN118073816A (en) | 2022-11-23 | 2022-11-23 | Active antenna, base station and wireless communication system |
| PCT/CN2023/106834 WO2024109108A1 (en) | 2022-11-23 | 2023-07-11 | Active antenna, base station and wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211470608.1A CN118073816A (en) | 2022-11-23 | 2022-11-23 | Active antenna, base station and wireless communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118073816A true CN118073816A (en) | 2024-05-24 |
Family
ID=91104644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211470608.1A Pending CN118073816A (en) | 2022-11-23 | 2022-11-23 | Active antenna, base station and wireless communication system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN118073816A (en) |
| WO (1) | WO2024109108A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140111396A1 (en) * | 2012-10-19 | 2014-04-24 | Futurewei Technologies, Inc. | Dual Band Interleaved Phased Array Antenna |
| CN106169651A (en) * | 2015-05-21 | 2016-11-30 | 中兴通讯股份有限公司 | A kind of active antenna equipment and base station |
| CN110492216A (en) * | 2018-05-15 | 2019-11-22 | 康普技术有限责任公司 | Antenna for base station with completely embedded radio and the shell with integrated heat dissipation structure |
| CN113036422A (en) * | 2019-12-25 | 2021-06-25 | 中兴通讯股份有限公司 | Active antenna device and base station |
| CN116111316A (en) * | 2021-11-09 | 2023-05-12 | 中兴通讯股份有限公司 | Active antenna system, base station, and wireless communication system |
-
2022
- 2022-11-23 CN CN202211470608.1A patent/CN118073816A/en active Pending
-
2023
- 2023-07-11 WO PCT/CN2023/106834 patent/WO2024109108A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024109108A1 (en) | 2024-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11901615B2 (en) | Communication base station | |
| CN118073816A (en) | Active antenna, base station and wireless communication system | |
| CN211352972U (en) | Shield case, radar, and electronic device | |
| CN107484403B (en) | Shielding case, circuit board assembly and electronic equipment | |
| EP4290274A1 (en) | Electronic apparatus, terminal device, and radar | |
| CN213843526U (en) | Antenna structure and positioning navigation device | |
| CN212303905U (en) | Zero-phase high-precision ceramic positioning antenna | |
| CN209749010U (en) | Mainboard and heat dissipation device thereof | |
| CN220569894U (en) | Fourteen-channel anti-interference antenna | |
| CN215771572U (en) | Ceramic array antenna | |
| CN219088101U (en) | Tracking device | |
| CN220569895U (en) | Small four-channel anti-interference antenna | |
| CN201689982U (en) | Active directional terminal antenna | |
| CN221239788U (en) | Antenna combination box body | |
| CN220439870U (en) | Highly integrated 5G base station antenna PCB | |
| CN216597970U (en) | Vehicle-mounted antenna | |
| CN217035995U (en) | Vehicle-mounted antenna | |
| CN216649678U (en) | CPE internet access equipment | |
| CN217562806U (en) | Radio remote unit and base station | |
| CN221239796U (en) | Composite antenna structure and electronic device | |
| CN219612413U (en) | Heat radiation structure of mobile phone shielding case | |
| CN221102423U (en) | Antenna device for small-sized communication equipment | |
| CN218831168U (en) | Shielding cover structure for radar transceiver circuit | |
| CN214203954U (en) | Shark antenna | |
| CN216214110U (en) | Antenna box and engineering machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |