CN212460032U - Radar antenna, radar, unmanned aerial vehicle and equipment - Google Patents
Radar antenna, radar, unmanned aerial vehicle and equipment Download PDFInfo
- Publication number
- CN212460032U CN212460032U CN201921779091.8U CN201921779091U CN212460032U CN 212460032 U CN212460032 U CN 212460032U CN 201921779091 U CN201921779091 U CN 201921779091U CN 212460032 U CN212460032 U CN 212460032U
- Authority
- CN
- China
- Prior art keywords
- radar
- antenna
- antennas
- transmitting
- receiving
- 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.)
- Active
Links
- 230000001174 ascending effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 14
- 238000001514 detection method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000002567 autonomic effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
Images
Landscapes
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The embodiment of the utility model discloses a radar antenna, radar, unmanned aerial vehicle and equipment, this radar antenna includes receiving antenna array and the transmitting antenna array that is connected with the radar chip, and a plurality of receiving antenna set up at the interval in the first direction, and a plurality of transmitting antenna set up at the interval in the first direction; in a first direction, at least one transmitting antenna and at least one receiving antenna are on the same straight line, and in a second direction perpendicular to the first direction, the at least one transmitting antenna and the at least one receiving antenna are arranged at intervals. Because at least one transmitting antenna and receiving antenna interval set up in the second direction, can launch radar signal on the plane of the difference of second direction, realized detecting the object on first direction and second direction, can obtain the object at first direction and the ascending information of second direction, realized the three-dimensional face of object promptly and detected to need not increase other mechanical structure and can realize the three-dimensional face of object and detect, simple structure has reduced the cost.
Description
Technical Field
The embodiment of the utility model provides a relate to radar technical field, especially relate to a radar antenna, radar, unmanned aerial vehicle and equipment.
Background
Along with the development of unmanned aerial vehicle technique, unmanned aerial vehicle wide application is in plant protection work, and in plant protection work, unmanned aerial vehicle keeps away the barrier through radar range finding to realize unmanned aerial vehicle's autonomic flight.
At present, millimeter wave radar can only perceive plane formula's barrier, for example when unmanned aerial vehicle the place ahead has the hillock of certain slope, can only detect horizontal direction the place ahead and have the barrier, and can't detect the information of barrier on the vertical direction, and unmanned aerial vehicle can only stop the flight or by-pass around the barrier in the horizontal direction.
In order to detect information of obstacles in the horizontal direction and the vertical direction, the millimeter wave radar mainly adopts an antenna phased array technology or a mechanical rotation mode to drive an antenna to rotate. The antenna phased array technique needs to set up more antenna element group array on the PCB board, leads to the PCB board size great to the panel of millimeter wave frequency channel is with high costs, and adopts the antenna of mechanical rotation mode drive, needs to increase mechanical pivoted control part, and has increased unmanned aerial vehicle's heavy burden.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a radar antenna, radar, unmanned aerial vehicle and equipment, this radar has realized the three-dimensional face of object and has detected to it is with low costs.
In a first aspect, an embodiment of the present invention provides a radar, including a receiving antenna array and a transmitting antenna array connected to a radar chip;
the receiving antenna array comprises a plurality of receiving antennas, the receiving antennas are connected with the radar chip, and the receiving antennas are arranged at intervals in a first direction;
the transmitting antenna array comprises a plurality of transmitting antennas, the plurality of transmitting antennas are connected with the radar chip, and the plurality of transmitting antennas are arranged at intervals in a first direction;
the antenna comprises at least one transmitting antenna and at least one receiving antenna, wherein the at least one transmitting antenna and the at least one receiving antenna are arranged on the same straight line in a first direction, and the at least one transmitting antenna and the at least one receiving antenna are arranged at intervals in a second direction perpendicular to the first direction.
Optionally, in the first direction, the plurality of receiving antennas are disposed at equal intervals or at unequal intervals, and the plurality of transmitting antennas are disposed at equal intervals or at unequal intervals.
Optionally, the distance between two adjacent receiving antennas in the first direction is an integral multiple of a half wavelength of the radar signal.
Optionally, the plurality of receiving antennas are collinear in the first direction.
Optionally, the plurality of receiving antennas are arranged at equal intervals in the first direction.
Optionally, the distance between two adjacent transmitting antennas in the first direction is an integer multiple of a half wavelength of the radar signal.
Optionally, the distance between two adjacent transmitting antennas arranged at intervals in the second direction is an integral multiple of a half wavelength of the radar signal.
Optionally, the receiving antenna and the transmitting antenna comprise single-element sub-antennas or multi-element sub-antennas.
Optionally, the number of the transmitting antennas is 3, and the number of the receiving antennas is 4. In a second aspect, the embodiment of the present invention further provides a radar, which includes the radar antenna according to any embodiment of the present invention.
Third aspect, the embodiment of the utility model provides a still provide an unmanned aerial vehicle, this unmanned aerial vehicle includes the utility model discloses any embodiment the radar.
In a fourth aspect, an embodiment of the present invention provides an apparatus, including a radar according to any embodiment of the present invention.
The radar antenna provided by the embodiment of the utility model comprises a receiving antenna array and a transmitting antenna array which are connected with a radar chip, wherein the receiving antenna array comprises a plurality of receiving antennas which are connected with the radar chip and are arranged at intervals in a first direction; the transmitting antenna array comprises a plurality of transmitting antennas, the plurality of transmitting antennas are connected with the radar chip, and the plurality of transmitting antennas are arranged at intervals in a first direction; the at least one transmitting antenna and the at least one receiving antenna are arranged on the same straight line in the first direction, and the at least one transmitting antenna and the at least one receiving antenna are arranged at intervals in the second direction perpendicular to the first direction. Because at least one transmitting antenna and receiving antenna interval set up in the second direction, can launch radar signal on the plane of the difference of second direction, realized detecting the object on first direction and second direction, can obtain the object at first direction and the ascending information of second direction, realized the three-dimensional face of object promptly and detected to need not increase other mechanical structure and can realize the three-dimensional face of object and detect, simple structure has reduced the cost.
Drawings
Fig. 1 is a schematic diagram of an antenna layout in a radar antenna according to an embodiment of the present invention;
fig. 2a is a schematic structural diagram of a single-array sub-antenna according to an embodiment of the present invention;
fig. 2b is a schematic structural diagram of a multi-element antenna formed by connecting 4 elements in series according to an embodiment of the present invention;
fig. 2c is a schematic structural diagram of a multi-array antenna with 4 arrays connected in series and then in parallel with 3 rows according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the antenna position relationship in the embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an antenna layout of a radar according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an antenna layout of a radar according to an embodiment of the present invention;
fig. 6-7 are diagrams illustrating the detection effect of a radar according to an embodiment of the present invention;
fig. 8 is a schematic diagram illustrating an antenna layout of a radar according to an embodiment of the present invention;
fig. 9 is a diagram illustrating the detection effect of a radar according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to understand better the embodiment of the utility model provides a, at first right the utility model discloses the angular resolution's of the radar that the embodiment relates to notion, the angular resolution of radar is the minimum angle that two objects can be distinguished to the radar, and the smaller the angular resolution of radar, the better the performance of the resolution object of radar. The angular resolution of the radar is calculated by
Wherein N is the transmitting antenna of the radar chip in the same directionThe product of the number and the number of receive antennas.
Fig. 1 is a schematic diagram of an antenna layout of a radar antenna according to an embodiment of the present invention, as shown in fig. 1, the radar antenna may include a radar chip 110, a receiving antenna array 120, and a transmitting antenna array 130.
Among them, the radar chip 110 may be provided with a transmission pin TX and a reception pin RX.
The receiving antenna array 120 includes a plurality of receiving antennas for receiving signals, each receiving antenna is electrically connected to one receiving pin RX, and the plurality of receiving antennas are arranged at intervals in the first direction a.
The transmitting antenna array 130 includes a plurality of transmitting antennas for transmitting signals, each transmitting antenna is electrically connected to one transmitting pin TX, the plurality of transmitting antennas are arranged at intervals in a first direction a, at least one transmitting antenna and the plurality of receiving antennas are on the same straight line, and at least one transmitting antenna and one receiving antenna are arranged at intervals in a second direction B perpendicular to the first direction a.
It should be noted that, the first direction related to the embodiments of the present invention may be a horizontal direction or a vertical direction, and when the first direction is the horizontal direction, the second direction is the vertical direction; when the first direction is a vertical direction, the second direction is a horizontal direction. The embodiment of the present invention relates to the first direction as the direction a in fig. 1, and the second direction as the direction B.
In addition, as shown in fig. 2a-2c and fig. 3, as shown in fig. 3, the radar antenna according to the embodiment of the present invention may be fixed on a medium, for example, on the surface of a PCB, wherein the transmitting antenna and the receiving antenna may be microstrip antennas or horn antennas. Optionally, the receiving antenna and the transmitting antenna may be a single-element antenna, a multi-element antenna formed by connecting multiple elements in series, or one of antennas formed by connecting multiple multi-element antennas in parallel, for example, fig. 2a is a schematic structural diagram of a single-element antenna, fig. 2b is a schematic structural diagram of a multi-element antenna formed by connecting 4 elements in series, fig. 2c is a schematic structural diagram of a multi-element antenna formed by connecting 4 elements in series and then in parallel with 3 columns, and small boxes in fig. 2a, fig. 2b, and fig. 2c represent elements.
The utility model discloses the example uses microstrip antenna as the example, and this microstrip antenna can be single element antenna or multi-array antenna to the antenna that the antenna is the multi-array to constitute is the example, then the embodiment of the utility model provides an in the embodiment the antenna mean on same straight line that the node P that antenna and feeder formed is on same straight line in certain direction, wherein, the feeder can be the connecting wire that antenna and radar chip 150 are connected. As shown in fig. 3, the nodes P of the 3 receiving antennas (RX1, RX2, RX3) are on the same straight line L in the first direction a, and the spaced arrangement means that the nodes P formed by the antennas and the feeder have a certain distance in a certain direction, as shown in fig. 3, the nodes P of the two transmitting antennas (TX1 and TX2) have a distance d in the first direction a, or the nodes P of the two transmitting antennas (TX1 and TX2) have a distance d in the second direction B, or the node P of the transmitting antenna TX1 has a distance d in the second direction B from the nodes P of the three receiving antennas (RX1, RX2, RX 3).
In order to more clearly illustrate the embodiment of the present invention, the parts of the antenna in the radar antenna are illustrated in the embodiment by taking the chip with 3-transmission and 4-reception radar chips 110 as an example, and of course, the number of the radar chips connecting the receiving antenna and the transmitting antenna is not limited in practical application.
As shown in fig. 4, the plurality of receiving antennas are spaced apart in a first direction a, the plurality of transmitting antennas (first, second, and third transmitting antennas) are also spaced apart, and in the first direction a, at least one transmitting antenna is aligned with at least one receiving antenna, and in a second direction B perpendicular to the first direction a, at least one transmitting antenna is spaced apart from at least one receiving antenna, as shown in fig. 4, in the first direction a, the first transmitting antenna and the third transmitting antenna are aligned with the plurality of receiving antennas, and in the second direction B, the second transmitting antenna is spaced apart from the plurality of receiving antennas.
In the first direction a, the receiving antennas are arranged at equal intervals or at unequal intervals, and the transmitting antennas are arranged at equal intervals or at unequal intervals, that is, as shown in fig. 4, in the first direction a, a distance between the first receiving antenna and the second receiving antenna may be d, a distance between the second receiving antenna and the third receiving antenna may be d, or nd, and similarly, a distance between the first transmitting antenna and the second transmitting antenna may be d, a distance between the second transmitting antenna and the third transmitting antenna may be d, or nd, where d is an integer multiple of a half-wavelength of the radar signal, and n is a positive integer.
As shown in fig. 4, 5 and 8, in the preferred embodiment of the present invention, the receiving antennas are on the same straight line in the first direction a, the at least one transmitting antenna and the at least one receiving antenna are on the same straight line in the first direction a, and the at least one transmitting antenna and the at least one receiving antenna are spaced apart from each other in the second direction B perpendicular to the first direction a, and more preferably, the receiving antennas are spaced apart from each other at equal intervals in the first direction a, and the spacing between the receiving antennas can be a half wavelength d of the radar signal.
As shown in fig. 4, 5 and 8, the distance between two adjacent and spaced transmitting antennas is an integral multiple of the half wavelength of the radar signal in the second direction B, as shown in fig. 4, the distance between the first transmitting antenna and the second transmitting antenna is d, the distance between the second transmitting antenna and the third transmitting antenna is d or nd, and n is a positive integer in the second direction B, i.e., the transmitting antennas may be arranged at equal intervals or at unequal intervals in the second direction B, and preferably, the transmitting antennas are arranged at equal intervals in the second direction B.
For example, when the radar is set as in fig. 4, the detection effect of the radar is as shown in fig. 6; when the radar is arranged as shown in fig. 5, the detection effect of the radar is shown in fig. 7, wherein the circles in fig. 5 and 6 represent the antennas, and the distance d between two adjacent antennas in the same direction is
The distance d between the two rows of antennas is also
It can be seen from fig. 6 or 7 that N is 8 in the first direction a and 2 in the second direction B, when the angular resolution of the radar is in the first direction aIs composed of
The angular resolution of the radar in the second direction B is
It can be seen that the radar configured as shown in fig. 4 or fig. 5 can realize the detection of the three-dimensional surface of the object, and the detection accuracy of the first direction a is higher than that of the second direction B.
In another alternative embodiment of the present invention, as shown in fig. 8, the radar antenna includes 3 transmitting antennas, which are respectively denoted as a first transmitting antenna, a second transmitting antenna and a third transmitting antenna, wherein, in the first direction A, the first transmitting antenna and the 4 receiving antennas are arranged on the same straight line, the first transmitting antenna, the second transmitting antenna and the third transmitting antenna are arranged at intervals in the second direction B, i.e. the first, second and third transmitting antennas are not in the same straight line in the first direction a, preferably the distance d between two adjacent transmitting antennas in the second direction is equal to the distance d between two adjacent receiving antennas in the first direction, of course, the distance between two adjacent transmitting antennas in the second direction B may also be an integer multiple of the distance d between two adjacent receiving antennas in the first direction a.
Illustratively, when the radar antenna is arranged as shown in fig. 8, the detection effect of the radar is shown in fig. 9, where the circle 810 is an antenna, the circle 820 is an antenna interpolated by software, and the distance between two adjacent antennas in the same direction is
The distance between the two rows of antennas is also
It can be seen from fig. 8 that N is 6 in the first direction a and 3 in the second direction B, when the angular resolution of the radar is in the first direction a
The angular resolution of the radar in the second direction B is
It can be seen that the radar configured as shown in fig. 8 can realize the detection of the three-dimensional surface of the object, and the detection accuracy of the first direction a is higher than that of the second direction B.
The embodiment of the utility model provides a radar is still provided, this radar includes the utility model discloses arbitrary embodiment radar antenna.
The embodiment of the utility model provides an unmanned aerial vehicle is still provided, this unmanned aerial vehicle includes the utility model provides an arbitrary radar.
The embodiment of the utility model provides an equipment is still provided, and this equipment includes the utility model provides an arbitrary radar. Optionally, this equipment can be for someone driving the car, someone driving the steamer, unmanned car, unmanned steamer etc. promptly the utility model discloses equipment can be mobile platform or fixed platform, can also be someone driving or unmanned platform, the embodiment of the utility model provides a not restriction to this.
The utility model discloses radar antenna, in the first direction, at least one transmitting antenna and at least one receiving antenna are on same straight line, and in the second direction of the first direction of perpendicular to, at least one transmitting antenna and at least one receiving antenna interval set up. Because at least one transmitting antenna and receiving antenna interval set up in the second direction, can launch radar signal on the plane of the difference of second direction, realized detecting the object on first direction and second direction, can obtain the object at first direction and the ascending information of second direction, realized the three-dimensional face of object promptly and detected to need not increase other mechanical structure and can realize the three-dimensional face of object and detect, simple structure has reduced the cost.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (17)
1. The radar antenna is characterized by comprising a receiving antenna array and a transmitting antenna array which are connected with a radar chip;
the receiving antenna array comprises a plurality of receiving antennas, the receiving antennas are connected with the radar chip, and the receiving antennas are arranged at intervals in a first direction;
the transmitting antenna array comprises a plurality of transmitting antennas, the plurality of transmitting antennas are connected with the radar chip, and the plurality of transmitting antennas are arranged at intervals in a first direction;
the antenna comprises at least one transmitting antenna and at least one receiving antenna, wherein the at least one transmitting antenna and the at least one receiving antenna are arranged on the same straight line in a first direction, and the at least one transmitting antenna and the at least one receiving antenna are arranged at intervals in a second direction perpendicular to the first direction.
2. The radar antenna according to claim 1, wherein the plurality of receiving antennas are arranged at equal intervals in the first direction.
3. The radar antenna according to claim 1, wherein the plurality of receiving antennas are arranged at unequal intervals in the first direction.
4. Radar antenna according to any of claims 1 to 3, characterised in that in the first direction a plurality of the transmit antennas are provided at equally spaced intervals.
5. Radar antenna according to any one of claims 1 to 3, characterised in that the plurality of transmitting antennas are arranged at unequal spacing intervals in the first direction.
6. The radar antenna of claim 1, wherein a distance between two receiving antennas adjacent in the first direction is an integer multiple of a half wavelength of the radar signal.
7. The radar antenna of claim 1, wherein the plurality of receive antennas are collinear in the first direction.
8. The radar antenna of claim 7, wherein the plurality of receiving antennas are disposed at equal intervals in the first direction.
9. Radar antenna according to claim 1 or 2 or 3 or 6 or 7 or 8, characterised in that the distance between two transmit antennas adjacent in the first direction is an integer multiple of half the wavelength of the radar signal.
10. The radar antenna of claim 9, wherein a distance between two transmit antennas that are adjacent and spaced apart in the second direction is an integer multiple of a half wavelength of the radar signal.
11. Radar antenna according to claim 10, characterised in that the transmitting antennas are equally spaced in the second direction.
12. Radar antenna according to claim 10, characterised in that the transmitting antennas are arranged at unequal spacing in the second direction.
13. Radar antenna according to claim 1 or 2 or 3 or 6 or 7 or 8, characterised in that the receive and transmit antennas comprise single or multiple sub-antennas.
14. Radar antenna according to claim 1 or 2 or 3 or 6 or 7 or 8, characterised in that the number of transmit antennas is 3 and the number of receive antennas is 4.
15. A radar, characterized in that it comprises a radar antenna according to any one of claims 1-14.
16. A drone, characterized in that it comprises a radar according to claim 15.
17. An apparatus, characterized in that the apparatus comprises a radar according to claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779091.8U CN212460032U (en) | 2019-10-22 | 2019-10-22 | Radar antenna, radar, unmanned aerial vehicle and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921779091.8U CN212460032U (en) | 2019-10-22 | 2019-10-22 | Radar antenna, radar, unmanned aerial vehicle and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212460032U true CN212460032U (en) | 2021-02-02 |
Family
ID=74479338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921779091.8U Active CN212460032U (en) | 2019-10-22 | 2019-10-22 | Radar antenna, radar, unmanned aerial vehicle and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212460032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698298A (en) * | 2019-10-22 | 2021-04-23 | 广州极飞科技有限公司 | Radar antenna, radar, unmanned aerial vehicle and equipment |
-
2019
- 2019-10-22 CN CN201921779091.8U patent/CN212460032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698298A (en) * | 2019-10-22 | 2021-04-23 | 广州极飞科技有限公司 | Radar antenna, radar, unmanned aerial vehicle and equipment |
| CN112698298B (en) * | 2019-10-22 | 2024-08-30 | 广州极飞科技股份有限公司 | Radar antenna, radar, unmanned aerial vehicle and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211786076U (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| WO2018051288A1 (en) | Virtual radar configuration for 2d array | |
| CN111656213B (en) | Radar and antenna built in radar | |
| CN112136060B (en) | MIMO radar sensor for motor vehicles | |
| CN111316499A (en) | Millimeter wave antenna structure, microwave rotary radar and movable platform | |
| KR20170056219A (en) | Patch array antenna and apparatus for transmitting and receiving radar signal with patch array antenna | |
| CN112103645A (en) | High-gain automobile millimeter wave radar array antenna | |
| US20130300606A1 (en) | Radar apparatus and an antenna apparatus | |
| CN212460032U (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| CN112698297A (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| CN211786077U (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| CN212623053U (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| CN214954056U (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| TWI528638B (en) | Radio-frequency system | |
| TWI582451B (en) | Vehicular radar system | |
| KR102329628B1 (en) | Patch array antenna and apparatus for transmitting and receiving radar signal with patch array antenna | |
| CN112103666A (en) | Automobile anti-collision radar array antenna | |
| CN112698298B (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| CN109462042B (en) | Automobile anti-collision radar array antenna and circuit board with same | |
| CN211957915U (en) | Radar antenna, radar and device | |
| US9667305B2 (en) | Receiver-transmitter | |
| CN112698299B (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| CN112698296B (en) | Radar antenna, radar, unmanned aerial vehicle and equipment | |
| CN213275946U (en) | Network monitoring system based on millimeter wave radar and millimeter wave antenna array structure | |
| WO2020085850A1 (en) | Radar device and antenna device used in radar device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510000 Block C, 115 Gaopu Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: XAG Co., Ltd. Address before: 510000 Block C, 115 Gaopu Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Xaircraft Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |