CN110892578B - RTK antenna module and unmanned vehicles - Google Patents
RTK antenna module and unmanned vehicles Download PDFInfo
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- CN110892578B CN110892578B CN201880038326.XA CN201880038326A CN110892578B CN 110892578 B CN110892578 B CN 110892578B CN 201880038326 A CN201880038326 A CN 201880038326A CN 110892578 B CN110892578 B CN 110892578B
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- 230000002411 adverse Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000011148 porous material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- 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
- H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/36—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like adapted to receive antennas or radomes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Details Of Aerials (AREA)
Abstract
The present application provides an RTK antenna assembly and an unmanned aerial vehicle including the RTK antenna assembly. The RTK antenna module comprises a feed substrate, an antenna body and a first fixed base. The feed substrate includes a first surface. The antenna body is of a cylindrical structure, and the antenna body is detachably mounted on the first surface and electrically connected with the feed substrate. The first fixed seat comprises a first mounting surface, and the feed substrate is detachably mounted on the first mounting surface. The feeding substrate and the first fixed seat are fixed through a fixing part along the circumferential direction and the axial direction of the feeding substrate. In this application among RTK antenna module and unmanned vehicles, assembly stable in structure between feed base plate, antenna body and the first fixing base, even take place vibration or striking also can not be easily destroyed, make RTK antenna module and unmanned vehicles also can carry out high accuracy operation under adverse circumstances.
Description
Technical Field
The application relates to the technical field of aircrafts, in particular to an RTK antenna assembly and an unmanned aerial vehicle.
Background
As a novel positioning antenna, a carrier-Time Kinematic (RTK) antenna is applied to an unmanned aerial vehicle with the advantage of centimeter-level high-precision positioning, so that the positioning and navigation precision of the unmanned aerial vehicle is greatly improved. When the unmanned aerial vehicle is applied to the fields of transportation, agriculture or surveying and mapping, and particularly applied to the agriculture and forestry plant protection industry, the working environment of the plant protection unmanned aerial vehicle is harsh, and the positioning antenna is used as a key part for receiving an antenna signal, so that the water resistance and the shock resistance are good, and the normal work of the unmanned aerial vehicle can be ensured safely and reliably. However, the conventional positioning antenna cannot meet the requirement of high-precision operation of the plant protection unmanned aerial vehicle.
Disclosure of Invention
The application provides a stable RTK antenna module of assembly structure, and include unmanned vehicles of the RTK antenna module.
The RTK antenna assembly of the first aspect of the present application includes a feed substrate, an antenna body, and a first fixing base. The feed substrate includes a first surface. The antenna body is of a cylindrical structure, and the antenna body is detachably mounted on the first surface and electrically connected with the feed substrate. The first fixed seat comprises a first mounting surface, and the feed substrate is detachably mounted on the first mounting surface. The feeding substrate and the first fixed seat are fixed through a fixing part along the circumferential direction and the axial direction of the feeding substrate.
The unmanned aerial vehicle of the second aspect of the present application includes a fuselage body and the RTK antenna assembly of the first aspect described above mounted on an outer surface of the fuselage body.
The RTK antenna assembly of the third aspect of the present application includes a first mount; the antenna plate is detachably arranged on the first fixed seat; the second fixed seat is used for bearing the first fixed seat; the antenna housing is covered above the antenna plate and is detachably connected with the first fixed seat; the antenna housing and the first fixed seat form a sealed accommodating cavity together for accommodating the antenna plate; the locking shell is sleeved on the antenna cover and is detachably connected with the second fixed seat; the locking shell is provided with a blocking part abutted to the antenna housing and used for preventing the antenna housing from falling off from the locking shell towards the direction far away from the second fixing seat.
The unmanned aerial vehicle of the fourth aspect of the present application includes a fuselage body and the RTK antenna assembly of the third aspect described above, mounted on an outer surface of the fuselage body.
This application among RTK antenna module and unmanned vehicles, this application the RTK antenna module can realize quick dismantlement and installation to and accomplish waterproof and prevent the effect of vibration through self structure, assembly stable in structure even can not destroyed easily when taking place vibration or striking, makes RTK antenna module and unmanned vehicles also can carry out the high accuracy operation under adverse circumstances.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an unmanned aerial vehicle according to the present application.
Fig. 2 is a schematic exploded view of an RTK antenna assembly shown in the present application.
FIG. 3 is a cross-sectional structural schematic diagram of the RTK antenna assembly of FIG. 2.
Fig. 4 is a partially enlarged view of the schematic cross-sectional structure shown in fig. 3.
Fig. 5 is a schematic structural diagram of a feed substrate in the RTK antenna assembly shown in fig. 2 and 3.
Fig. 6 is a schematic structural diagram of a first mount in the RTK antenna assembly shown in fig. 2 and 3.
Fig. 7 is a schematic cross-sectional view of the first fixing base shown in fig. 6.
Fig. 8 is a schematic cross-sectional structure of an antenna cover in the RTK antenna assembly shown in fig. 2 and 3.
FIG. 9 is a schematic structural diagram of a first mount in another embodiment of an RTK antenna assembly shown in the present application.
Fig. 10 is a schematic cross-sectional view of the first fixing base shown in fig. 9.
Fig. 11 is a schematic structural diagram of a second mount in the RTK antenna assembly shown in fig. 2 and 3.
FIG. 12 is a cross-sectional structural schematic diagram of a locking cap in the RTK antenna assembly shown in FIGS. 2 and 3.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments shown in the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the present application provides an unmanned aerial vehicle 1000 and an RTK antenna assembly 100, where the unmanned aerial vehicle 1000 includes the RTK antenna assembly 100 and a fuselage 200, and the RTK antenna assembly 100 is mounted on an outer surface of the fuselage 200 for receiving satellite signals and determining position information of the unmanned aerial vehicle according to the satellite signals.
Example one
Referring to fig. 2 to 4, an RTK antenna assembly 100 according to an embodiment of the present application includes a feeding substrate 10, an antenna body 20, and a first fixing base 30. The feeding substrate 10 includes a first surface 101, the antenna body 20 is cylindrical, and the antenna body 20 is detachably mounted on the first surface 101 and electrically connected to the feeding substrate 10. The first fixing base 30 includes a first mounting surface 301, and the feed substrate 10 is detachably mounted on the first mounting surface 31. Wherein, along the axial direction and the circumferential direction of the feed substrate 10, the feed substrate 10 and the first fixing base 30 are fixed by the fixing portion. In this application, the fixed part includes first fixed part and second fixed part.
In the RTK antenna assembly 100 shown in the present application, the antenna body 20 is installed on the first surface 101 of the feed substrate 10, and along the axial direction and the circumferential direction of the feed substrate 10, the feed substrate 10 and the first fixing base 30 are all fixed by the fixing portion, so that the antenna body 20, the feed substrate 10 and the first fixing base 30 are assembled stably, the structural stability of the RTK antenna assembly 100 is effectively ensured, the RTK antenna assembly cannot be easily damaged when vibration or impact occurs, and the high-precision operation requirement of the RTK antenna assembly 100 is favorably met.
Referring to fig. 3 again, in this embodiment, the antenna body 20 includes a dielectric cylinder 21 and a plurality of radiation elements 22, the plurality of radiation elements 22 are spirally disposed on the outer surface of the dielectric cylinder 21, and each radiation element 22 is electrically connected to the feed substrate 10. Specifically, the medium tube 21 is circular truncated cone-shaped. The radiation elements 22 are made of copper, and a plurality of radiation elements 22 are provided on the side surface 211 of the dielectric cylinder 21 at regular intervals by a copper plating process. It should be noted that, in other embodiments, the media cartridge 10 may also be a cylindrical cartridge, and the present application is not limited thereto.
Referring to fig. 5, the feeding substrate 10 is a circular PCB, an axial direction of the feeding substrate 10 is a central axis direction of the circular PCB (i.e. a Z-axis direction in the figure), a circumferential direction of the feeding substrate 10 is a circumferential direction of the circular PCB (i.e. a ω direction in the figure), and the axial direction of the feeding substrate 10 is perpendicular to the circumferential direction of the feeding substrate 10. Specifically, the feeding substrate 10 includes a second surface 102 facing the first fixing base 30, and the second surface 22 is parallel to and opposite to the first surface 21. The second surface 102 is provided with a feeding connector 1021 electrically connected to the feeding substrate 10 for inputting or outputting signals to or from the feeding substrate 10. Further, the power feeding connector 1021 is electrically connected to an external device, and a signal of the external device is transmitted to the power feeding substrate 10 through the power feeding connector 1021, or the signal of the power feeding substrate 10 is output to the external device through the power feeding connector 1021. In this embodiment, the feeding connector 1021 is a copper pillar.
The feed substrate 10 and the first fixing base 30 are fixed by the first fixing portion along the circumferential direction of the feed substrate 10. Referring to fig. 5 to 7, in the embodiment, the first fixing portion includes a plurality of first protrusions 31 and a plurality of first slots 11, the plurality of first protrusions 31 are disposed at intervals on the edge of the first mounting surface 301, the plurality of first slots 11 are disposed at intervals on the edge of the second surface 102, and each protrusion 41 is held in one of the first slots 11. Specifically, the number of the first protrusions 31 is the same as that of the first card slots 11, the first card slots 11 penetrate through the second surface 102 and the first surface 101, and each first protrusion 31 is clamped in each first card slot 11, so that the feeding substrate 10 and the first fixing base 30 are circumferentially fixed, and the feeding substrate 10 and the first fixing base 30 are prevented from relatively shifting in the ω direction shown in the figure. It is understood that, in other embodiments of the present application, a plurality of the first protrusions may be disposed at intervals on an edge of the second surface, a plurality of the first locking grooves may be correspondingly disposed on an edge of the first mounting surface, and each of the first protrusions is locked in one of the first locking grooves, so as to achieve circumferential fixation between the feeding substrate and the first fixing base.
Referring to fig. 8, the RTK antenna assembly 100 further includes an antenna housing 40, a receiving cavity 401 is formed in the antenna housing 40, the feeding substrate 10, the antenna body 20 and the first fixing base 30 are all received in the receiving cavity 401, and the first fixing base 30 is detachably connected to the antenna housing 40. In the present embodiment, the radome 40 includes a first case 41 and a second case 42. The appearance of first casing 41 is the tube-shape, establishes in first casing 41 and accepts chamber 4011 for the first son, and the shape of accepting chamber 4011 for the first son is adapted with the shape of antenna body 20, and the size of accepting chamber 4011 for the first son is greater than the size of antenna body 20, and antenna body 20 is acceptd in first son and accepts the chamber 4011 for protection antenna body 20, can effectively block rainwater or the liquid that sprays when unmanned vehicles operation and get into the antenna, prevents that unmanned vehicles antenna body 20 from receiving external moisture to corrode and being destroyed when the operation. The second housing 42 is integrally formed with the first housing 41, the second housing 42 is cylindrical, and the size of the second housing 42 is slightly larger than that of the first housing 41. A second sub receiving cavity 4012 communicated with the first sub receiving cavity 4011 is formed in the second housing 42, and the second sub receiving cavity 4012 and the first sub receiving cavity 4011 form a receiving cavity 401 together. The feeding substrate 10 and the first fixing base 30 are accommodated in the second sub-accommodation chamber 4012, and the first fixing base 30 is detachably connected to the second housing 42. In this embodiment, the circumferential surface 302 of the first fixing seat 30 is provided with an external thread, the wall of the second accommodating cavity 4012 is provided with an internal thread, and the first fixing seat 30 and the second housing 42 are connected together by a thread.
Referring to fig. 6 and 7, the fixing portion further includes a second fixing portion, and the feeding substrate 10 and the first fixing base 30 are fixed by the second fixing portion along the axial direction of the feeding substrate 10. In this embodiment, the second fixing portion includes a plurality of second protrusions 32, each second protrusion 32 is provided with a second slot 33, the plurality of second protrusions 32 are disposed at intervals on the edge of the first mounting surface 301, and the periphery of the feeding substrate 10 is held in the plurality of second slots 33. It is understood that, in other embodiments, a plurality of the second protrusions may be disposed at intervals on the edge of the second surface, and accordingly, an end of the first fixing seat facing the feeding substrate is clamped in the plurality of the second clamping grooves, so as to achieve axial fixation between the feeding substrate and the first fixing seat.
Referring also to fig. 8, the second protrusion 32 includes an inner side surface 321 facing the center of the first mounting surface 301 and a top surface 322 connected to the inner side surface 321. The second card slot 33 is opened at the connection between the inner side 321 and the top 322 to form a supporting surface 323, a supporting plate 43 is protruded from the cavity wall of the accommodating cavity 401, and the periphery of the feeding substrate 10 is clamped between the supporting surfaces 323 and the supporting plate 43. In this embodiment, the plurality of second protrusions 32 and the plurality of first protrusions 31 are alternately arranged. The distance between the abutting surface 323 and the first mounting surface 301 of the second protrusion 32 is smaller than the distance between the top surface 322 and the first mounting surface 301, and the abutting surface 323 and the top surface 322 are parallel and spaced, so that the second protrusion 32 forms a step-shaped structure. The abutting plate 43 is disposed at the connection position of the first sub receiving cavity 4011 and the second sub receiving cavity 4012, and the abutting plate 43 is a ring-shaped plate structure. Further, the abutting plate 43 is disposed parallel to the abutting surface 323. A clamping space is formed between the abutting plate 43 and the abutting surface 323, and the periphery of the feed substrate 10 is clamped in the clamping space, so as to axially fix the feed substrate 10 and the first fixing base 30 and prevent the feed substrate 10 and the first fixing base 30 from shifting relative to each other along the Z axis shown in the figure. It can be understood that, in other embodiments, when the plurality of second protrusions are disposed at the edge of the second surface at intervals, the inner side surface is a surface of the second protrusion facing the center of the second surface, and one end of the first fixing base facing the feed substrate is clamped between the plurality of abutting surfaces and the abutting plates, so as to axially fix the feed substrate and the first fixing base.
Referring to fig. 9 and 10, in the second embodiment of the RTK antenna assembly 100 shown in the present application, a difference from the first embodiment is that the second slot 33 is opened on the inner side 321 of the second protrusion 32. Specifically, the plurality of second slots 33 form a discontinuous slot, and the periphery of the feed substrate 10 is clamped in the slot to axially fix the feed substrate 10 and the first fixing base 30, so as to prevent the feed substrate 10 and the first fixing base 30 from shifting in the Z-axis direction. It can be understood that, in the present embodiment, the feeding substrate 10 has elasticity, and the periphery of the feeding substrate 10 is elastically clamped in the plurality of first card slots 11.
It should be noted that, in the embodiment, when the feeding substrate 10 is mounted on the first fixing base 30, the periphery of the feeding substrate 10 is held in the plurality of second slots 33, and each of the first protrusions 31 is held in one of the first slots 11, so that the feeding substrate 10 can be quickly assembled with the first fixing base 30 without using other fixing members such as bolts, and as such, quick detachment between the feeding substrate 10 and the first fixing base 30 is facilitated.
Referring to fig. 4 again, in the present application, the first waterproof member 51 is sleeved on the circumferential surface 302 of the first fixing seat 30, and the first waterproof member 51 is clamped between the circumferential surface 302 of the first fixing seat 30 and the cavity wall of the accommodating cavity 401. Specifically, the circumferential surface 302 of the first fixing seat 30 is concavely provided with a first mounting groove 3021, and the first waterproof member 51 is partially embedded in the first mounting groove 3021. Further, the first mounting groove 3021 is disposed on one side of the circumferential surface 302 close to the feed substrate 10, the first waterproof member 51 is a waterproof silicone ring, and when the first fixing seat 30 is connected to the radome 40, the waterproof silicone ring is deformed by being squeezed to seal a gap between the circumferential surface 302 and a cavity wall of the accommodating cavity 401, so as to prevent external water from flowing to the feed substrate 10 and the antenna body 20 from the gap between the circumferential surface 302 and the cavity wall of the accommodating cavity 401, and improve the service life of the feed substrate 10 and the antenna body 20.
The first fixing base 30 includes a second mounting surface 302 facing away from the feed substrate 10, and the second mounting surface 302 is disposed opposite to the first mounting surface 301. The first fixing base 30 is provided with a through hole 34 penetrating through the first mounting surface 301 and the second mounting surface 302, and the feed connector 1021 is electrically connected with an external device after penetrating through the through hole 34. Specifically, the circumferential surface of the feed joint 1021 is sleeved with the second waterproof member 52, and the second waterproof member 52 is sandwiched between the circumferential surface of the feed joint 1021 and the hole wall of the through hole 34. The hole wall of the through hole 34 is provided with a second mounting groove 341, and the second waterproof member 52 is partially embedded in the second mounting groove 341. The second waterproof member 52 is an elastic member, and after the feed connector 1021 passes through the through hole 34, the second waterproof member 52 deforms and is clamped between the peripheral surface of the feed connector 1021 and the hole wall of the through hole 34, so that moisture in the external environment is effectively prevented from flowing from the through hole 34 to the feed substrate 10 and the antenna body 20. In this embodiment, the second waterproof member 52 includes a waterproof silicone ring 521 and a waterproof gasket 522 stacked together. It can be understood that, in other embodiments, the second waterproof member may also be composed of two waterproof silicone rings or two waterproof gaskets, and the specific structure of the second waterproof member is not limited in this application as long as the waterproof function can be realized.
Referring also to fig. 11, the RTK antenna assembly 100 further includes a second fixing base 60, and the second fixing base 60 is detachably mounted on the second mounting surface 302. Specifically, the second fixing seat 60 includes a third mounting surface 601 facing the second mounting surface 302, and the second fixing seat 60 is fixedly connected to the first fixing seat 30 by a screw or a bolt, so that the third mounting surface 601 contacts the second mounting surface 302. In the present application, the RTK antenna assembly 100 is mounted and fixed to the fuselage body of the unmanned aerial vehicle through the second fixing base 60.
Further, the second fixing base 60 is fixed to the antenna cover 40 by a third fixing portion. Specifically, the third mounting surface 601 is disposed toward the radome 40, and the radome 40 includes a fourth mounting surface 402 facing the third mounting surface 601. The third fixing portion includes a plurality of third protrusions 61 and a plurality of third catching grooves 44. In this application, the plurality of third protrusions 61 are disposed at the edge of the third mounting surface 601 at intervals, the plurality of third slots 44 are disposed at the edge of the fourth mounting surface 402 at intervals, and each third protrusion 61 is clamped in one third slot 44, so that the second fixing base 60 and the antenna cover 40 are fixed. It should be noted that, in other embodiments, a plurality of the third protrusions may be disposed at intervals on an edge of the fourth mounting surface, a plurality of the third slots are correspondingly disposed at intervals on an edge of the third mounting surface, and each of the third protrusions is clamped in one of the third slots, so that the radome and the second fixing base can be fixed as well.
Referring to fig. 12, the RTK antenna assembly 100 further includes a locking housing 70, the locking housing 70 is sleeved on the peripheral surfaces of the antenna cover 40 and the second fixing base 60, and the locking housing 70 is detachably connected to the second fixing base 60. Specifically, the lock case 70 includes an upper case 71 and a lower case 72. A first sub-containing cavity 701 is formed in the upper shell 71, the second shell 42 of the antenna housing 40 is contained in the first sub-containing cavity 701, and the outer peripheral surface of the second shell 42 is attached to the cavity wall of the first sub-containing cavity 701. The lower housing 72 and the upper housing 71 are integrally formed, a second sub-accommodating cavity 702 communicated with the first sub-accommodating cavity 701 is formed in the lower housing 72, and the second fixing seat 60 is accommodated in the second sub-accommodating cavity 702 and detachably connected to the lower housing 72. In this embodiment, a wall of the second sub-receiving cavity 702 is provided with threads, the circumferential surface of the second fixing base 60 is provided with threads, and the second fixing base 60 is connected to the locking shell 70 through the threads.
Referring to fig. 3 and 4 again, in the RTK antenna assembly 100 of the present application, after the antenna body 20 and the feed substrate 10 are fixed by screws, the feed substrate 10 is fixed with the first fixing base 30 in the axial direction and the circumferential direction by the first fixing portion and the second fixing portion, the antenna body 20, the feed substrate 10 and the first fixing base 30 are all accommodated in the accommodating cavity 401 of the radome 40, the first fixing base 30 is connected with the radome 40 by screws, the first waterproof member 51 is clamped between the circumferential surface of the first fixing base 30 and the cavity wall of the accommodating cavity 401, the second fixing base 60 is fixed on the second mounting surface 302 of the first fixing base 30 by screws, the locking cover 80 is sleeved on the outer circumferential surfaces of the radome 40 and the second fixing base 60, and the second fixing base 60 is connected with the locking cover 80 by screws. The RTK antenna module 100 shown in this application is stable in assembly structure between each part, can not destroyed easily when taking place vibration or striking, and antenna body 20 and feed substrate 10 accommodate in the chamber 401 of accommodating of radome 40, first waterproof piece 51 centre gripping is between the chamber wall of accommodating chamber 401 in global 302 of first fixing base 30 and radome 40, second waterproof piece 52 centre gripping is between the outer peripheral face of feed port 1021 and the pore wall of through-hole 34, the damage feed substrate and antenna body 20 in having prevented that external moisture from getting into RTK antenna module 100, antenna body 20 and feed substrate 10 have effectively been protected, make the RTK antenna module 100 shown in this application also can carry out high accuracy operation in adverse circumstances.
Example two
Referring to fig. 2, another embodiment of the present application provides an RTK antenna assembly 100 including a first fixing base 30, an antenna plate, a second fixing base 60, an antenna cover 40, and a locking housing 70. The antenna board is detachably mounted on the first fixing base 30. The second fixing base 60 is used for bearing the first fixing base 30. The antenna housing 40 covers the antenna plate and is detachably connected to the first fixing base 30. The antenna housing 40 and the first fixing base 30 together form a sealed accommodating cavity 401 for accommodating the antenna board. The locking shell 70 is sleeved on the radome 40 and detachably connected with the second fixing seat 60. The locking housing 70 is provided with a blocking portion abutting against the radome 40 for preventing the radome 40 from falling off from the inside of the locking housing 70 toward a direction away from the second fixing base 60.
Referring to fig. 3, specifically, in the present embodiment, the antenna cover 40 and the first fixing base 30 are detachably connected together in a threaded manner, but in other embodiments, a plurality of manners such as a snap connection, a threaded fastener connection, or a latch connection may also be adopted.
Referring to fig. 4, specifically, in the present embodiment, the locking shell 70 and the second fixing base 60 are detachably connected together in a threaded manner, but in other embodiments, a plurality of manners such as a snap connection, a threaded fastener connection, or a latch connection may also be adopted.
Referring to fig. 2, in the present embodiment, the antenna board includes a feeding substrate 10 and an antenna body 20. The antenna body 20 is a cylindrical structure, and in other embodiments, the shape of the antenna body may be a cylindrical structure, a plate-shaped structure, or other structures, which is not limited herein. The antenna body 20 and the feed substrate 10 are installed together to form an antenna board, the antenna board is installed on the first fixing seat 30, the first fixing seat 30 is connected with the second fixing seat 60, the antenna housing 40 is sleeved on the first fixing seat 30, and finally the locking shell 70 is sleeved outside the antenna housing 40 and the second fixing seat 60, so that an RTK antenna assembly with the antenna board, the first fixing seat 30, the second fixing seat 60, the antenna housing 40 and the locking shell 70 can be formed. The RTK antenna assembly can be quickly disassembled and assembled, and the antenna plate can be conveniently replaced or overhauled by disassembling the locking shell 70 and the antenna housing 40. Meanwhile, the antenna panel can realize water resistance and impact resistance under the protection of the antenna housing 40 and the locking shell 70, and can be beneficial to the protection of the antenna panel.
The positioning and mounting structure of the RTK antenna assembly of this embodiment is the same as or similar to that in the first embodiment, and is not described herein again.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (52)
1. An RTK antenna assembly, comprising:
a feed substrate including a first surface;
the antenna body is of a cylindrical structure, and is detachably arranged on the first surface and electrically connected with the feed substrate;
the first fixing seat comprises a first mounting surface, and the feed substrate is detachably mounted on the first mounting surface;
the feeding substrate and the first fixed seat are fixed through a fixing part along the axial direction and the circumferential direction of the feeding substrate;
the fixing part comprises a first fixing part and a second fixing part, the feed substrate and the first fixing seat are fixed through the first fixing part along the circumferential direction of the feed substrate, and the feed substrate and the first fixing seat are fixed through the second fixing part along the axial direction of the feed substrate.
2. The RTK antenna assembly of claim 1, wherein the feed substrate includes a second surface facing the first fixing base, the first fixing portion includes a plurality of first protrusions and a plurality of first card slots, the plurality of first protrusions are spaced apart from an edge of the second surface, the plurality of first card slots are spaced apart from an edge of the first mounting surface, and each first protrusion is captured in the first card slot; or, the plurality of first protrusions are arranged at the edge of the first mounting surface at intervals, the plurality of first clamping grooves are arranged at the edge of the second surface at intervals, and each first protrusion is clamped in each first clamping groove.
3. The RTK antenna assembly of claim 1, wherein the feed substrate includes a second surface facing the first fixing base, the second fixing portion includes a plurality of second protrusions, each of the second protrusions defines a second slot, the plurality of second protrusions are spaced apart from an edge of the second surface, and an end of the first fixing base facing the feed substrate is retained in the plurality of second slots; or, the second protrusions are arranged at the edge of the first mounting surface at intervals, and the periphery of the feed substrate is clamped in the second clamping grooves.
4. The RTK antenna assembly of claim 3, further comprising a radome having a receiving cavity therein, the antenna body, the feed substrate, and the first anchor being received in the receiving cavity, the first anchor being removably attached to the antenna radome.
5. The RTK antenna assembly of claims 3 or 4, wherein the second protrusion includes an inner side facing toward a center of the second surface or the first mounting surface, the second slot opening on the inner side.
6. The RTK antenna assembly of claim 4, wherein the second protrusion includes an inner side facing the center of the second surface and a top surface connected to the inner side, the second slot opens at a junction of the inner side and the top surface and forms a holding surface, a holding plate is raised on a cavity wall of the receiving cavity, and an end of the first fixing base facing the feed substrate is clamped between the holding surfaces and the holding plate; or the second bulge comprises an inner side surface facing the center of the first mounting surface and a top surface connected with the inner side surface, the second clamping groove is formed in the joint of the inner side surface and the top surface and forms a supporting surface, a supporting plate is arranged on the cavity wall of the accommodating cavity in a protruding mode, and the periphery of the feed substrate is clamped between the supporting surfaces and the supporting plate.
7. The RTK antenna assembly of claim 4, wherein a first waterproof member is sleeved on a circumferential surface of the first fixing base, the first waterproof member being sandwiched between the circumferential surface of the first fixing base and a wall of the receiving cavity.
8. The RTK antenna assembly of claim 4, wherein the first anchor includes a second attachment surface disposed opposite the first attachment surface, the RTK antenna assembly further including a second anchor removably mounted to the second attachment surface.
9. The RTK antenna assembly of claim 7, wherein a circumferential surface of the first anchor block is recessed with a first mounting groove, and the first waterproof member is partially embedded in the first mounting groove.
10. The RTK antenna assembly of claim 8, wherein the second anchor mount and the radome are secured by a third securing portion.
11. The RTK antenna assembly of claim 8, further comprising a locking shell that is sleeved over a perimeter of the radome and the second mount, the locking shell being removably attached to the second mount.
12. The RTK antenna assembly of claim 8, wherein the second surface is provided with a feed connector electrically connected to the feed substrate, the first fixing base is provided with a through hole penetrating the first mounting surface and the second mounting surface, the feed connector passes through the through hole, and the feed substrate inputs or outputs a signal through the feed connector.
13. The RTK antenna assembly of claim 10, wherein the second anchor includes a third mounting surface facing the radome, the radome includes a fourth mounting surface facing the third mounting surface, the third anchor includes a plurality of third protrusions spaced apart at an edge of the third mounting surface and a plurality of third slots spaced apart at an edge of the fourth mounting surface, each of the third protrusions being captured within the third slots; or, the plurality of third protrusions are arranged at the edge of the fourth mounting surface at intervals, the plurality of third clamping grooves are arranged at the edge of the third mounting surface at intervals, and each third protrusion is clamped in each third clamping groove.
14. The RTK antenna assembly of claim 12, wherein the circumferential surface of the feed sub is sleeved with a second waterproof member, the second waterproof member being sandwiched between the circumferential surface of the feed sub and a wall of the through hole.
15. The RTK antenna assembly of claim 14, wherein a wall of the through hole defines a second mounting slot, and the second waterproof member is partially embedded in the second mounting slot.
16. An unmanned aerial vehicle, comprising a fuselage and an RTK antenna assembly disposed on the fuselage, the RTK antenna assembly being mounted on an outer surface of the fuselage body; the RTK antenna assembly comprises a feed substrate, an antenna body and a first fixed seat, wherein the feed substrate comprises a first surface, the antenna body is of a cylindrical structure in appearance, the antenna body is detachably mounted on the first surface and is electrically connected with the feed substrate, the first fixed seat comprises a first mounting surface, the feed substrate is detachably mounted on the first mounting surface, and the feed substrate and the first fixed seat are fixed through a fixing part in the axial direction and the circumferential direction of the feed substrate;
the fixing part comprises a first fixing part and a second fixing part, the feed substrate and the first fixing seat are fixed through the first fixing part along the circumferential direction of the feed substrate, and the feed substrate and the first fixing seat are fixed through the second fixing part along the axial direction of the feed substrate.
17. The UAV of claim 16, wherein the feeding substrate includes a second surface facing the first fixing base, the first fixing portion includes a plurality of first protrusions and a plurality of first slots, the plurality of first protrusions are spaced apart from an edge of the second surface, the plurality of first slots are spaced apart from an edge of the first mounting surface, and each first protrusion is retained in the first slot; or, the plurality of first protrusions are arranged at the edge of the first mounting surface at intervals, the plurality of first clamping grooves are arranged at the edge of the second surface at intervals, and each first protrusion is clamped in each first clamping groove.
18. The UAV of claim 16, wherein the feeding substrate includes a second surface facing the first fixing base, the second fixing portion includes a plurality of second protrusions, each of the second protrusions defines a second slot, the plurality of second protrusions are spaced apart from an edge of the second surface, and an end of the first fixing base facing the feeding substrate is retained in the plurality of second slots; or, the second protrusions are arranged at the edge of the first mounting surface at intervals, and the periphery of the feed substrate is clamped in the second clamping grooves.
19. The UAV of claim 18, wherein the RTK antenna assembly further comprises a radome, a cavity is defined in the radome, the antenna body, the feed substrate, and the first mounting block are all received in the cavity, and the first mounting block is detachably connected to the radome.
20. The UAV of claim 18 or 19 wherein the second protrusion includes an inner side facing the center of the second surface or the first mounting surface, the second slot opening on the inner side.
21. The unmanned aerial vehicle of claim 19, wherein the second protrusion comprises an inner side surface facing the center of the second surface and a top surface connected to the inner side surface, the second slot is opened at the connection between the inner side surface and the top surface to form a holding surface, a holding plate is convexly disposed on the cavity wall of the receiving cavity, and one end of the first fixing base facing the feed substrate is clamped between the holding surfaces and the holding plate; or the second bulge comprises an inner side surface facing the center of the first mounting surface and a top surface connected with the inner side surface, the second clamping groove is formed in the joint of the inner side surface and the top surface and forms a supporting surface, a supporting plate is arranged on the cavity wall of the accommodating cavity in a protruding mode, and the periphery of the feed substrate is clamped between the supporting surfaces and the supporting plate.
22. The unmanned aerial vehicle of claim 19, wherein a first waterproof member is sleeved on a peripheral surface of the first fixing base, and the first waterproof member is clamped between the peripheral surface of the first fixing base and a cavity wall of the accommodating cavity.
23. The UAV of claim 19, wherein the first anchor mount includes a second attachment face disposed opposite the first attachment face, the RTK antenna assembly further including a second anchor mount, the second anchor mount being removably mounted on the second attachment face.
24. The UAV of claim 22, wherein the first mounting groove is recessed in a circumferential surface of the first mounting seat, and the first waterproof member is partially embedded in the first mounting groove.
25. The unmanned aerial vehicle of claim 23, wherein the second anchor block is secured to the radome by a third anchor portion.
26. The UAV of claim 23, wherein the RTK antenna assembly further comprises a locking shell that is sleeved over the radome and the perimeter of the second mount, the locking shell being removably attached to the second mount.
27. The unmanned aerial vehicle of claim 23, wherein a feed connector electrically connected to the feed substrate is disposed on the second surface, a through hole penetrating through the first mounting surface and the second mounting surface is disposed on the first fixing base, the feed connector passes through the through hole, and the feed substrate inputs or outputs signals through the feed connector.
28. The UAV of claim 25 wherein the second mounting block includes a third mounting surface facing the radome, the radome includes a fourth mounting surface facing the third mounting surface, the third mounting block includes a plurality of third protrusions spaced apart from an edge of the third mounting surface and a plurality of third slots spaced apart from an edge of the fourth mounting surface, each third protrusion being received in a third slot; or, the plurality of third protrusions are arranged at the edge of the fourth mounting surface at intervals, the plurality of third clamping grooves are arranged at the edge of the third mounting surface at intervals, and each third protrusion is clamped in each third clamping groove.
29. The unmanned aerial vehicle of claim 27, wherein a second waterproof member is provided around the circumferential surface of the power feeding connector, and the second waterproof member is sandwiched between the circumferential surface of the power feeding connector and the wall of the through hole.
30. The unmanned aerial vehicle of claim 29, wherein a second mounting groove is formed in a wall of the through hole, and the second waterproof member is partially embedded in the second mounting groove.
31. An RTK antenna assembly, comprising:
a first fixed seat;
the antenna plate is detachably arranged on the first fixed seat;
the second fixed seat is used for bearing the first fixed seat;
the antenna housing is covered above the antenna plate and is detachably connected with the first fixed seat; the antenna housing and the first fixed seat form a sealed accommodating cavity together for accommodating the antenna plate;
the locking shell is sleeved on the antenna cover and is detachably connected with the second fixed seat;
the locking shell is provided with a blocking part which is abutted against the antenna housing and is used for preventing the antenna housing from falling off from the inside of the locking shell towards the direction far away from the second fixed seat;
the antenna board comprises a feed substrate, and the feed substrate and the first fixed seat are fixed through a fixing part along the axial direction and the circumferential direction of the feed substrate;
the fixing part comprises a first fixing part and a second fixing part, the feed substrate and the first fixing seat are fixed through the first fixing part along the circumferential direction of the feed substrate, and the feed substrate and the first fixing seat are fixed through the second fixing part along the axial direction of the feed substrate.
32. The RTK antenna assembly of claim 31, wherein a first waterproof member is sleeved on a circumferential surface of the first fixing base, and the first waterproof member is clamped between the circumferential surface of the first fixing base and a wall of the receiving cavity.
33. The RTK antenna assembly of claim 32, wherein a circumferential surface of the first anchor block is recessed with a first mounting groove, and the first waterproof member is partially embedded in the first mounting groove.
34. The RTK antenna assembly of claim 31, wherein the feed substrate includes first and second oppositely disposed surfaces, and
the antenna body is detachably arranged on the first surface and is electrically connected with the feed substrate.
35. The RTK antenna assembly of claim 34, wherein the shape of the antenna body comprises at least one of: tubular structure, cylindrical structure, plate-like structure.
36. The RTK antenna assembly of claim 34, wherein the second surface of the feed substrate faces the first fixing base, the first fixing portion includes a plurality of first protrusions and a plurality of first card slots, the plurality of first protrusions are spaced apart from an edge of the second surface, the plurality of first card slots are spaced apart from an edge of the first mounting surface of the first fixing base, and each first protrusion is captured in the first card slot; or, the plurality of first protrusions are arranged at the edge of the first mounting surface at intervals, the plurality of first clamping grooves are arranged at the edge of the second surface at intervals, and each first protrusion is clamped in each first clamping groove.
37. The RTK antenna assembly of claim 34, wherein the second surface of the feed substrate faces the first fixing base, the second fixing portion includes a plurality of second protrusions, each of the second protrusions defines a second slot, the plurality of second protrusions are spaced apart from an edge of the second surface, and an end of the first fixing base facing the feed substrate is retained in the plurality of second slots; or, the second protrusions are arranged at the edge of the first mounting surface of the first fixing base at intervals, and the periphery of the feed substrate is clamped in the second clamping grooves.
38. The RTK antenna assembly of claim 34, wherein the second fixing portion includes a plurality of second protrusions, each of the second protrusions includes an inner side facing the center of the second surface and a top surface connected to the inner side, each of the second protrusions has a second slot, the second slot is opened at a connection between the inner side and the top surface to form a supporting surface, a supporting plate is protruded from a cavity wall of the receiving cavity, and an end of the first fixing base facing the feeding substrate is clamped between the supporting surfaces and the supporting plate; or the second protrusion comprises an inner side surface facing the center of the first mounting surface of the first fixing seat and a top surface connected with the inner side surface, the second clamping groove is formed in the joint of the inner side surface and the top surface to form a supporting surface, a supporting plate is arranged on the upper portion of the cavity wall of the accommodating cavity, and the periphery of the feed substrate is clamped between the supporting surfaces and the supporting plate.
39. The RTK antenna assembly of claim 34, wherein the second anchor block is secured to the radome by a third anchor portion, the second anchor block includes a third mounting surface facing the radome, the radome includes a fourth mounting surface facing the third mounting surface, the third anchor portion includes a plurality of third protrusions and a plurality of third slots, the plurality of third protrusions are spaced apart from an edge of the third mounting surface, the plurality of third slots are spaced apart from an edge of the fourth mounting surface, and each third protrusion is captured within a third slot; or, the plurality of third protrusions are arranged at the edge of the fourth mounting surface at intervals, the plurality of third clamping grooves are arranged at the edge of the third mounting surface at intervals, and each third protrusion is clamped in each third clamping groove.
40. The RTK antenna assembly of any one of claims 31 to 39, wherein the means for detachably connecting the locking housing to the second mount comprises at least one of: screw thread, buckle, threaded fastener, bolt.
41. The RTK antenna assembly of any one of claims 31 to 39, wherein the means for detachably connecting the radome to the first mount comprises at least one of: screw thread, buckle, threaded fastener, bolt.
42. An unmanned aerial vehicle comprising a fuselage and an RTK antenna assembly disposed on the fuselage, the RTK antenna assembly comprising:
a first fixed seat;
the antenna plate is detachably arranged on the first fixed seat;
the second fixed seat is used for bearing the first fixed seat;
the antenna housing is covered above the antenna plate and is detachably connected with the first fixed seat; the antenna housing and the first fixed seat form a sealed accommodating cavity together for accommodating the antenna plate;
the locking shell is sleeved on the antenna cover and is detachably connected with the second fixed seat;
the locking shell is provided with a blocking part which is abutted against the antenna housing and is used for preventing the antenna housing from falling off from the inside of the locking shell towards the direction far away from the second fixed seat;
the antenna board comprises a feed substrate, and the feed substrate and the first fixed seat are fixed through a fixing part along the axial direction and the circumferential direction of the feed substrate;
the fixing part comprises a first fixing part and a second fixing part, the feed substrate and the first fixing seat are fixed through the first fixing part along the circumferential direction of the feed substrate, and the feed substrate and the first fixing seat are fixed through the second fixing part along the axial direction of the feed substrate.
43. The UAV of claim 42, wherein a first waterproof member is sleeved on a peripheral surface of the first fixing seat, and the first waterproof member is clamped between the peripheral surface of the first fixing seat and a cavity wall of the accommodating cavity.
44. The UAV of claim 43, wherein a first mounting groove is concavely formed on a peripheral surface of the first fixing seat, and the first waterproof member is partially embedded in the first mounting groove.
45. The UAV of claim 42 wherein the feed substrate includes first and second oppositely disposed surfaces, and
the antenna body is detachably arranged on the first surface and is electrically connected with the feed substrate.
46. The unmanned aerial device of claim 45, wherein the shape of the antenna body comprises at least one of: tubular structure, cylindrical structure, plate-like structure.
47. The UAV of claim 45, wherein the second surface of the feeding substrate faces the first fixing base, the first fixing portion includes a plurality of first protrusions and a plurality of first slots, the plurality of first protrusions are spaced apart from an edge of the second surface, the plurality of first slots are spaced apart from an edge of the first mounting surface of the first fixing base, and each first protrusion is retained in the first slot; or, the plurality of first protrusions are arranged at the edge of the first mounting surface at intervals, the plurality of first clamping grooves are arranged at the edge of the second surface at intervals, and each first protrusion is clamped in each first clamping groove.
48. The UAV of claim 45, wherein the second surface of the feeding substrate faces the first fixing base, the second fixing portion includes a plurality of second protrusions, each of the second protrusions defines a second slot, the plurality of second protrusions are spaced apart from an edge of the second surface, and an end of the first fixing base facing the feeding substrate is retained in the plurality of second slots; or, the second protrusions are arranged at the edge of the first mounting surface of the first fixing base at intervals, and the periphery of the feed substrate is clamped in the second clamping grooves.
49. The unmanned aerial vehicle of claim 45, wherein the second fixing portion comprises a plurality of second protrusions, each second protrusion comprises an inner side surface facing the center of the second surface and a top surface connected with the inner side surface, each second protrusion is provided with a second clamping groove, each second clamping groove is formed at the connection position of the inner side surface and the top surface and forms a supporting surface, a supporting plate is convexly arranged on the cavity wall of the accommodating cavity, and one end of the first fixing seat facing the feed substrate is clamped between the supporting surfaces and the supporting plate; or the second protrusion comprises an inner side surface facing the center of the first mounting surface of the first fixing seat and a top surface connected with the inner side surface, the second clamping groove is formed in the joint of the inner side surface and the top surface to form a supporting surface, a supporting plate is arranged on the upper portion of the cavity wall of the accommodating cavity, and the periphery of the feed substrate is clamped between the supporting surfaces and the supporting plate.
50. The UAV of claim 45, wherein the second holder is fixed to the radome by a third fixing portion, the second holder includes a third mounting surface facing the radome, the radome includes a fourth mounting surface facing the third mounting surface, the third fixing portion includes a plurality of third protrusions and a plurality of third slots, the plurality of third protrusions are spaced apart from an edge of the third mounting surface, the plurality of third slots are spaced apart from an edge of the fourth mounting surface, and each third protrusion is retained in the third slot; or, the plurality of third protrusions are arranged at the edge of the fourth mounting surface at intervals, the plurality of third clamping grooves are arranged at the edge of the third mounting surface at intervals, and each third protrusion is clamped in each third clamping groove.
51. An unmanned aerial vehicle as claimed in any of claims 42 to 50, wherein the means of releasable connection of the locking housing to the second mount comprises at least one of: screw thread, buckle, threaded fastener, bolt.
52. An unmanned aerial vehicle as claimed in any of claims 42 to 50, wherein the means of releasable connection of the radome to the first mount comprises at least one of: screw thread, buckle, threaded fastener, bolt.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/119150 WO2020113416A1 (en) | 2018-12-04 | 2018-12-04 | Rtk antenna assembly and unmanned aerial vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110892578A CN110892578A (en) | 2020-03-17 |
| CN110892578B true CN110892578B (en) | 2022-04-08 |
Family
ID=69746133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880038326.XA Expired - Fee Related CN110892578B (en) | 2018-12-04 | 2018-12-04 | RTK antenna module and unmanned vehicles |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110892578B (en) |
| WO (1) | WO2020113416A1 (en) |
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|---|---|---|---|---|
| US6480173B1 (en) * | 2000-11-28 | 2002-11-12 | Receptec Llc | Quadrifilar helix feed network |
| JP2014082565A (en) * | 2012-10-15 | 2014-05-08 | Harada Ind Co Ltd | Vehicular antenna cover |
| CN205376760U (en) * | 2016-02-24 | 2016-07-06 | 惠州市物联微电子有限公司 | Based on waterproof antenna in thing networking basic station |
| CN205944423U (en) * | 2016-08-19 | 2017-02-08 | 苏州探海海洋科技有限责任公司 | Robot communication kuppe under water |
| CN207967278U (en) * | 2018-01-24 | 2018-10-12 | 深圳市云希科技有限公司 | Double-frequency broadband four-arm spiral antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4290744B2 (en) * | 2007-03-12 | 2009-07-08 | 株式会社日本自動車部品総合研究所 | Antenna device |
| KR102292100B1 (en) * | 2016-02-03 | 2021-08-19 | 엘에스엠트론 주식회사 | Feeding structure of antenna and antenna device for vehicle using thereof |
| CN205921080U (en) * | 2016-06-29 | 2017-02-01 | 广东通宇通讯股份有限公司 | Antenna packaging structure |
| CN106602258A (en) * | 2017-01-20 | 2017-04-26 | 江苏省东方世纪网络信息有限公司 | Antenna and wireless communication device |
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2018
- 2018-12-04 CN CN201880038326.XA patent/CN110892578B/en not_active Expired - Fee Related
- 2018-12-04 WO PCT/CN2018/119150 patent/WO2020113416A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6480173B1 (en) * | 2000-11-28 | 2002-11-12 | Receptec Llc | Quadrifilar helix feed network |
| JP2014082565A (en) * | 2012-10-15 | 2014-05-08 | Harada Ind Co Ltd | Vehicular antenna cover |
| CN205376760U (en) * | 2016-02-24 | 2016-07-06 | 惠州市物联微电子有限公司 | Based on waterproof antenna in thing networking basic station |
| CN205944423U (en) * | 2016-08-19 | 2017-02-08 | 苏州探海海洋科技有限责任公司 | Robot communication kuppe under water |
| CN207967278U (en) * | 2018-01-24 | 2018-10-12 | 深圳市云希科技有限公司 | Double-frequency broadband four-arm spiral antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110892578A (en) | 2020-03-17 |
| WO2020113416A1 (en) | 2020-06-11 |
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Granted publication date: 20220408 |