CN215732218U - Luneberg lens antenna system with microwave relay function - Google Patents
Luneberg lens antenna system with microwave relay function Download PDFInfo
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- CN215732218U CN215732218U CN202121473193.4U CN202121473193U CN215732218U CN 215732218 U CN215732218 U CN 215732218U CN 202121473193 U CN202121473193 U CN 202121473193U CN 215732218 U CN215732218 U CN 215732218U
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- luneberg lens
- reflecting plate
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- 238000010295 mobile communication Methods 0.000 claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 20
- 230000010354 integration Effects 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 238000010276 construction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000010267 cellular communication Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
The utility model relates to a Luneberg lens antenna system with a microwave relay function, which comprises a mobile communication mechanism, a Luneberg lens, a microwave relay antenna and a signal integration device, wherein the mobile communication mechanism comprises a mobile communication antenna, a mobile signal transceiver, an A reflecting plate, a position adjusting device and a mounting plate; the mounting plate is arranged beside the luneberg lens; the position adjusting device is arranged on the mounting surface of the mounting plate; the A reflecting plate is arranged on the position adjusting device and moves around the center of the luneberg lens through the position adjusting device; the mobile communication antenna is arranged on the reflecting surface of the reflecting plate A and is connected with the mobile signal transceiver; the microwave relay antenna is arranged beside the luneberg lens and connected with the signal integration device, and the signal integration device is in signal communication with the mobile signal transceiver. The utility model has the characteristics of simple structure, scientific design, convenient installation, low installation difficulty, convenient construction, good application effect and the like.
Description
Technical Field
The utility model relates to the technical field of mobile communication equipment, in particular to a Luneberg lens antenna system with a microwave relay function.
Background
In the construction of mobile communication systems, remote areas are widely sparse and it is very difficult to erect communication cables. In order to solve the problem of cable erection, at present, most remote areas receive signals in a microwave relay or satellite relay mode, and after the signals are received, communication signals are provided for mobile phones through mobile communication antennas. At present, a relay system antenna and a mobile communication antenna in application are separately erected, and occupy different sky space respectively, so that the mode is inconvenient to install, and the installation difficulty is greatly improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a Luneberg lens antenna system with a microwave relay function, which has the advantages of simple structure, scientific design, convenient installation, low installation difficulty, convenient construction, good application effect and the like.
The technical scheme of the utility model is realized as follows: a luneberg lens antenna system with microwave relay function is characterized by comprising a mobile communication mechanism, a luneberg lens, a microwave relay antenna and a signal integration device, wherein:
the mobile communication mechanism comprises a mobile communication antenna, a mobile signal transceiver, an A reflecting plate, a position adjusting device and a mounting plate; the mounting plate is positioned beside the Luneberg lens, the mounting plate and the Luneberg lens are relatively fixed, and the surface of the mounting plate facing the Luneberg lens is a mounting surface; the position adjusting device is arranged on the mounting surface of the mounting plate and comprises a driving part; the A reflecting plate is arranged between the position adjusting device and the Luneberg lens, the A reflecting plate is arranged on the position adjusting device, one surface of the A reflecting plate is a reflecting surface arranged towards the direction of the Luneberg lens, and the A reflecting plate is driven by a driving part of the position adjusting device to do arc-shaped movement around the center of the Luneberg lens; the mobile communication antenna is arranged on the reflecting surface of the reflecting plate A and is connected with the mobile signal transceiver;
the microwave relay antenna is arranged beside the Luneberg lens, the microwave relay antenna and the Luneberg lens are fixed relatively, the microwave relay antenna is arranged towards the direction of the Luneberg lens, the microwave relay antenna is connected with the signal integration device, and the signal integration device is in signal communication with the mobile signal transceiver.
The working principle of the utility model is as follows: the mobile communication mechanism and the microwave relay antenna can be integrated into an antenna system by using the Luneberg lens, when the mobile communication mechanism and the microwave relay antenna are used, the microwave relay antenna is also arranged in the corresponding relay signal link direction on the Luneberg lens, so that the microwave relay antenna can receive signals sent by the remote relay antenna, the microwave relay antenna transmits the received signals to the signal integration device, the signal integration device processes the signals and then sends the processed signals to the mobile signal transceiver, and the mobile signal transceiver transmits the signals to the mobile communication antenna, so that the signals can be sent out through the Luneberg lens, and a mobile phone terminal in an area provided with the mobile communication mechanism and the microwave relay antenna can receive the signals; in addition, the luneberg lens is a completely global symmetrical structure, any position on the surface of the lens is a focus, an antenna formed by the luneberg lens has the advantages of wide frequency band and multiple beams, so that the mobile communication antenna and the microwave relay antenna can be installed in the same space of a sky, the mobile communication antenna and the microwave relay antenna do not need to be separately erected, and the inclination angle of the mobile communication antenna can be adjusted through a position adjusting device according to needs when the mobile communication antenna is used, so that the radiation range of a mobile signal is adjusted, the installation difficulty is greatly reduced, and the use is more convenient.
Furthermore, the position adjusting device also comprises an arc-shaped guide rail and a sliding block; the arc-shaped guide rail is fixed on the mounting surface of the mounting plate; the A reflecting plate is provided with the sliding block, and the sliding block on the A reflecting plate is in sliding fit with the arc-shaped guide rail; and the driving component is provided with a driving component capable of pushing the A reflecting plate to move along the arc-shaped guide rail, and the driving component is connected with the A reflecting plate.
Furthermore, the driving part comprises a motor and a screw rod, the motor is fixed on the mounting surface of the mounting plate, two ends of the screw rod are rotatably mounted on the mounting surface, and the motor is used for driving the screw rod to rotate around the axis of the screw rod; the driving assembly comprises a moving seat and a connecting rod, the moving seat is provided with a screw hole, the screw hole of the moving seat is in threaded connection with the screw rod, the moving seat is provided with a fixed rod, an insertion notch is formed in the fixed rod, long holes communicated with the insertion notch are formed in 2 oppositely-arranged side surfaces of the fixed rod, and the length direction of each long hole is perpendicular to the axis of the screw rod; one end of the connecting rod is fixed on the reflecting plate A, the other end of the connecting rod is inserted into the insertion notch of the fixing rod, a connecting shaft penetrates through the connecting rod, two ends of the connecting shaft are correspondingly inserted into the elongated holes in two sides of the insertion notch, and the axis of the connecting shaft is perpendicular to the projection of the axis of the screw rod on the installation surface.
Still further, be formed with the slide that the cross section is the structure of falling T on the arc guide rail, be formed with the sliding part that the cross section is the structure of falling T on the slider, sliding part on the slider and the slide sliding fit on the arc guide rail.
Still further, the reflecting plate A is an arc-shaped plate, the reflecting surface of the reflecting plate A is a concave curved surface, a plurality of mobile communication antennas are mounted on the reflecting surface of the reflecting plate A, the mobile communication antennas are arranged along an arc line, and the center of the arc line is concentric with the spherical center of the luneberg lens.
The utility model has the beneficial effects that: the device has the advantages of simple structure, scientific design, convenience in installation, low installation difficulty, convenience in construction, good application effect and the like.
Drawings
Fig. 1 is a schematic front view of the embodiment.
Fig. 2 is a schematic top view (excluding the mobile signal transceiver) of the cellular communication device, which is configured by connecting the luneberg lens, the microwave relay antenna, and the cellular communication device according to the embodiment.
Fig. 3 is a schematic sectional view in the direction of a-a in fig. 1.
Fig. 4 is a schematic view of the structure of the reflector a, the position adjustment device, and the mounting plate according to the embodiment.
Description of reference numerals: 1-a mobile communication mechanism; 11-a mobile communication antenna; 12-A reflector plate; 13-a position adjustment device; 14-a drive member; 141-a motor; 142-a screw; 15-arc guide rail; 151-a slide; 16-a slide block; 161-a sliding part; 17-a drive assembly; 171-a movable seat; 172-link; 173-a fixing bar; 174-an insertion recess; 175-elongated hole; 176-a connecting shaft; 18-a mounting plate; 181-a mounting surface; 2-a luneberg lens; 3-a microwave relay antenna; 4-a satellite communication mechanism; 41-a feed source; 42-B reflector plate.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, a luneberg lens antenna system with microwave relay function of this embodiment includes a mobile communication mechanism 1, a luneberg lens 2, a microwave relay antenna 3, and a signal integration device, wherein:
the mobile communication mechanism 1 comprises a mobile communication antenna 11, a mobile signal transceiver, an A reflecting plate 12, a position adjusting device 13 and a mounting plate 18; the mounting plate 18 is positioned beside the luneberg lens 2, the mounting plate 18 is fixed relative to the luneberg lens 2, one surface of the mounting plate 18 facing the luneberg lens 2 is a mounting surface 181, and the mounting surface 181 is vertical to the horizontal plane; the position adjusting device 13 is arranged on the mounting surface 181 of the mounting plate 18, and the position adjusting device 13 comprises a driving part 14; the A reflecting plate 12 is arranged between the position adjusting device 13 and the Luneberg lens 2, the A reflecting plate 12 is arranged on the position adjusting device 13, one surface of the A reflecting plate 12 is a reflecting surface arranged towards the direction of the Luneberg lens 2, and the A reflecting plate 12 is driven by a driving part 14 of the position adjusting device 13 to do arc-shaped movement around the center of the Luneberg lens 2; the mobile communication antenna 11 is installed on the reflecting surface of the A reflecting plate 12, the mobile communication antenna 11 is connected with a mobile signal transceiver, and the mobile signal transceiver is a mobile communication base station;
the microwave relay antenna 3 is located beside the luneberg lens 2, the microwave relay antenna 3 is fixed relative to the luneberg lens 2, the microwave relay antenna 3 is arranged towards the luneberg lens 2, here, the receiving end of the microwave relay antenna 3 is arranged towards the luneberg lens 2, the microwave relay antenna 3 is connected with the signal integration device, and the signal integration device is in signal communication with the mobile signal transceiver. The Luneberg lens antenna system with the microwave relay function enables the mobile communication mechanism 1 and the microwave relay antenna 3 to be integrated in the whole antenna system by using the Luneberg lens 2, in use, the microwave relay antenna 3 is also mounted on the luneberg lens 2 in the direction of the corresponding relay signal link, so that the microwave relay antenna 3 in the luneberg lens antenna system with the microwave relay function can receive the signal sent by the relay antenna at a far distance, the microwave relay antenna 3 transmits the received signal to the signal integration device, the signal integration device processes the signal and then sends the signal to the mobile signal transceiver, the mobile signal transceiver transmits the signal to the mobile communication antenna 11, so that the signal can be transmitted through the luneberg lens 2, the mobile phone terminal in the area provided with the Luneberg lens antenna system with the microwave relay function can receive signals; in addition, the luneberg lens 2 is a complete spherical symmetrical structure, any position on the surface of the lens is a focus, and an antenna formed by the luneberg lens 2 has the advantages of wide frequency band and multiple beams, so that the mobile communication antenna 11 and the microwave relay antenna 3 can be installed in the same space of a sky, the mobile communication antenna 11 and the microwave relay antenna 3 do not need to be separately erected, and the inclination angle of the mobile communication antenna 11 can be adjusted through the position adjusting device 13 according to needs when the mobile communication antenna is used, so that the radiation range of a mobile signal is adjusted, the installation difficulty is greatly reduced, and the use is more convenient. The luneberg lens antenna system with the microwave relay function has the advantages of simple structure, scientific design, convenience in installation, low installation difficulty, convenience in construction, good application effect and the like.
In order to make the structure of the position adjusting device 13 more reasonable, as shown in fig. 1, 2 and 4, the position adjusting device 13 further comprises an arc-shaped guide rail 15 and a sliding block 16; the arc-shaped guide rail 15 is fixed on the mounting surface 181 of the mounting plate 18; the A reflecting plate 12 is provided with the sliding block 16, and the sliding block 16 on the A reflecting plate 12 is in sliding fit with the arc-shaped guide rail 15; the driving component 14 is provided with a driving component 17 which can push the A reflecting plate 12 to move along the arc-shaped guide rail 15, and the driving component 17 is connected with the A reflecting plate 12. The position adjusting device 13 comprises 2 sliders 16 and 2 arc-shaped guide rails 15, the 2 arc-shaped guide rails 15 are arranged side by side, the length directions of the 2 arc-shaped guide rails 15 are parallel to each other, the circle centers of the 2 arc-shaped guide rails 15 and the sphere center of the luneberg lens 2 are collinear, one slider 16 is in sliding fit with one arc-shaped guide rail 15 correspondingly, and the driving part 14 and the driving assembly 17 are both located between the 2 arc-shaped guide rails 15.
In order to make the structure of the position adjusting device 13 more reasonable, as shown in fig. 1, fig. 2 and fig. 4, the driving part 14 includes a motor 141 and a screw 142, the motor 141 is fixed on the mounting surface 181 of the mounting plate 18, both ends of the screw 142 are rotatably mounted on the mounting surface 181, the axis of the screw 142 is parallel to the length direction of the arc-shaped guide rail 15, and the motor 141 is used for driving the screw 142 to rotate around its axis; the driving assembly 17 comprises a moving seat 171 and a connecting rod 172, the moving seat 171 is provided with a screw hole, the screw hole of the moving seat 171 is in threaded connection with the screw 142, the moving seat 171 is provided with a fixed rod 173, the fixed rod 173 is provided with an insertion notch 174, 2 opposite side surfaces of the fixed rod 173 are provided with elongated holes 175 communicated with the insertion notch 174, and the length direction of the elongated holes 175 is perpendicular to the axis of the screw 142; one end of the connecting rod 172 is fixed on the a reflection plate 12, the other end of the connecting rod 172 is inserted into the insertion notch 174 of the fixing rod 173, a connecting shaft 176 is arranged on the connecting rod 172 in a penetrating manner, the middle part of the connecting shaft 176 is fixed with the connecting rod 172, two ends of the connecting shaft 176 are correspondingly inserted into the elongated holes 175 on two sides of the insertion notch 174, and the axis of the connecting shaft 176 is perpendicular to the projection of the axis of the screw 142 on the mounting surface 181. When the position of the mobile communication antenna 11 on the a reflection plate 12 needs to be fine-tuned, only the motor 141 needs to be started to rotate the screw 142, the rotation of the screw 142 can drive the moving seat 171 to move back and forth along the axis of the screw 142, so that the elongated hole 175 of the fixed rod 173 on the moving seat 171 can push the connecting shaft 176 on the connecting rod 172, and the connecting shaft 176 on the connecting rod 172 can move in the elongated hole 175 along the length direction of the elongated hole 175, so that the connecting rod 172 can drive the a reflection plate 12 to move along the arc-shaped guide rail 15, thereby enabling the mobile communication antenna 11 on the a reflection plate 12 to realize position tuning.
In order to make the assembling structure between the sliding block 16 and the arc-shaped guide rail 15 more reasonable, as shown in fig. 1, fig. 2 and fig. 4, a sliding way 151 with an inverted T-shaped cross section is formed on the arc-shaped guide rail 15, a sliding part 161 with an inverted T-shaped cross section is formed on the sliding block 16, and the sliding part 161 on the sliding block 16 is in sliding fit with the sliding way 151 on the arc-shaped guide rail 15.
In order to make the luneberg lens antenna system with microwave relay function more effective, as shown in fig. 2, the a reflector 12 is an arc-shaped plate, the reflecting surface of the a reflector 12 is a concave curved surface, a plurality of the mobile communication antennas 11 are mounted on the reflecting surface of the a reflector 12, the mobile communication antennas 11 are arranged along an arc line, the center of the arc line is concentric with the center of the luneberg lens 2, and the design is such that the transmitting and receiving directions of the mobile communication antennas 11 are both directed to the center of the luneberg lens 2.
In order to further optimize the luneberg lens antenna system with microwave relay function, as shown in fig. 1 and fig. 3, the luneberg lens antenna system with microwave relay function further includes a satellite communication mechanism 4, the satellite communication mechanism 4 includes a satellite signal transceiver, a control module and a plurality of feed sources 41, the feed sources 41 are all positioned below the luneberg lens 2, and the feed sources 41 are uniformly distributed within the cone angle alpha of the bottom of the luneberg lens 2, which in this embodiment is 90, the uniform distribution of these feeds 41 within the cone angle a at the base of the luneberg lens 2 means that a virtual cone is defined on the luneberg lens 2, the tip of the virtual cone is the center of the luneberg lens 2, the included angle between the symmetrical 2 generatrices on the virtual cone is the cone angle alpha, the bottom edge of the virtual cone is infinitely extended, and the feed sources 41 are arranged in the enclosure of the side surface of the virtual cone. The feed sources 41 are respectively and electrically connected with a control module (the control module is not shown in the drawing), and the feed sources 41 are also connected with the satellite signal transceiver through a multi-path electronic switch, and the satellite signal transceiver is in signal communication with the mobile signal transceiver. When in use, the feed source 41 of the satellite communication mechanism 4 receives electromagnetic waves in any direction through the luneberg lens 2, so that satellite signals can be received when in use, and a user can send and receive signals through the combination of the satellite communication mechanism 4 and the mobile communication mechanism 1, thereby being convenient for use in remote areas; in addition, a feed source 41 of a satellite communication mechanism 4 in the luneberg lens antenna system with the microwave relay function is connected to a satellite signal transceiver through a multi-channel electronic switch, the selection of the feed source 41 is controlled by a control module, and the control module selects the corresponding feed source 41 to work according to a satellite ephemeris, so that the satellite tracking and communication keeping functions are realized.
In order to make the installation structure of the satellite communication mechanism 4 more reasonable, as shown in fig. 1 and fig. 3, the satellite communication mechanism 4 further includes a B reflection plate 42, the B reflection plate 42 is located below the luneberg lens 2, the B reflection plate 42 is fixed relative to the luneberg lens 2, the surface of the B reflection plate 42 facing the luneberg lens 2 is a reflection surface, the reflection surface of the B reflection plate is a spherical concave surface, and each of the feed sources 41 is installed on the reflection surface of the B reflection plate 42. In order to adjust the position of the feed 41 on the B reflecting plate 42 during use, a position adjusting mechanism (not shown) may be mounted below the B reflecting plate 42, and the structure of the position adjusting mechanism is the same as that of the position adjusting device 13 in the mobile communication unit 1.
For convenience of installation in use, the luneberg lens 2, the a reflecting plate 12 of the mobile communication mechanism 1, the position adjusting device 13 and the mobile communication antenna 11 of the present luneberg lens antenna system having a microwave relay function, the microwave relay antenna 3, the a reflecting plate 12 of the satellite communication mechanism 4, and the feed 41 may be integrally installed in one housing.
Claims (8)
1. A luneberg lens antenna system with microwave relay function, its characterized in that: including mobile communication mechanism, luneberg lens, microwave relay antenna and signal integration device, wherein:
the mobile communication mechanism comprises a mobile communication antenna, a mobile signal transceiver, an A reflecting plate, a position adjusting device and a mounting plate; the mounting plate is positioned beside the Luneberg lens, the mounting plate and the Luneberg lens are relatively fixed, and the surface of the mounting plate facing the Luneberg lens is a mounting surface; the position adjusting device is arranged on the mounting surface of the mounting plate and comprises a driving part; the A reflecting plate is arranged between the position adjusting device and the Luneberg lens, the A reflecting plate is arranged on the position adjusting device, one surface of the A reflecting plate is a reflecting surface arranged towards the direction of the Luneberg lens, and the A reflecting plate is driven by a driving part of the position adjusting device to do arc-shaped movement around the center of the Luneberg lens; the mobile communication antenna is arranged on the reflecting surface of the reflecting plate A and is connected with the mobile signal transceiver;
the microwave relay antenna is arranged beside the Luneberg lens, the microwave relay antenna and the Luneberg lens are fixed relatively, the microwave relay antenna is arranged towards the direction of the Luneberg lens, the microwave relay antenna is connected with the signal integration device, and the signal integration device is in signal communication with the mobile signal transceiver.
2. A luneberg lens antenna system with microwave relay function as claimed in claim 1, wherein: the position adjusting device also comprises an arc-shaped guide rail and a sliding block; the arc-shaped guide rail is fixed on the mounting surface of the mounting plate; the A reflecting plate is provided with the sliding block, and the sliding block on the A reflecting plate is in sliding fit with the arc-shaped guide rail; and the driving component is provided with a driving component capable of pushing the A reflecting plate to move along the arc-shaped guide rail, and the driving component is connected with the A reflecting plate.
3. A luneberg lens antenna system with microwave relay function as claimed in claim 2, wherein: the driving part comprises a motor and a screw rod, the motor is fixed on the mounting surface of the mounting plate, two ends of the screw rod are rotatably mounted on the mounting surface, and the motor is used for driving the screw rod to rotate around the axis of the screw rod; the driving assembly comprises a moving seat and a connecting rod, the moving seat is provided with a screw hole, the screw hole of the moving seat is in threaded connection with the screw rod, the moving seat is provided with a fixed rod, an insertion notch is formed in the fixed rod, long holes communicated with the insertion notch are formed in 2 oppositely-arranged side surfaces of the fixed rod, and the length direction of each long hole is perpendicular to the axis of the screw rod; one end of the connecting rod is fixed on the reflecting plate A, the other end of the connecting rod is inserted into the insertion notch of the fixing rod, a connecting shaft penetrates through the connecting rod, two ends of the connecting shaft are correspondingly inserted into the elongated holes in two sides of the insertion notch, and the axis of the connecting shaft is perpendicular to the projection of the axis of the screw rod on the installation surface.
4. A luneberg lens antenna system with microwave relay function as claimed in claim 2, wherein: the slide that is the structure of falling T-shaped of cross section is formed on the arc guide rail, be formed with the sliding part that is the structure of falling T-shaped of cross section on the slider, sliding part on the slider and the slide sliding fit on the arc guide rail.
5. A luneberg lens antenna system with microwave relay function as claimed in claim 1, wherein: the A reflecting plate is an arc-shaped plate, the reflecting surface of the A reflecting plate is a concave curved surface, a plurality of mobile communication antennas are arranged on the reflecting surface of the A reflecting plate and are arranged along an arc line, and the circle center of the arc line is concentric with the sphere center of the luneberg lens.
6. A luneberg lens antenna system with microwave relay function as claimed in claim 1, wherein: the satellite communication mechanism comprises a satellite signal transceiver, a control module and a plurality of feed sources, the feed sources are all located below the Luneberg lens and are evenly distributed in a cone angle alpha range at the bottom of the Luneberg lens, the feed sources are respectively electrically connected with the control module, the feed sources are connected with the satellite signal transceiver through a multi-path electronic switch, and the satellite signal transceiver is in signal communication with the mobile signal transceiver.
7. The luneberg lens antenna system with microwave relay function as claimed in claim 6, wherein: the satellite communication mechanism further comprises a B reflecting plate, the B reflecting plate is located below the Luneberg lens, the B reflecting plate and the Luneberg lens are fixed relatively, the surface, facing the Luneberg lens, of the B reflecting plate is a reflecting surface, the reflecting surface of the B reflecting plate is a spherical concave surface, and all the feed sources are installed on the reflecting surface of the B reflecting plate.
8. The luneberg lens antenna system with microwave relay function as claimed in claim 6, wherein: the taper angle α is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121473193.4U CN215732218U (en) | 2021-06-30 | 2021-06-30 | Luneberg lens antenna system with microwave relay function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121473193.4U CN215732218U (en) | 2021-06-30 | 2021-06-30 | Luneberg lens antenna system with microwave relay function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215732218U true CN215732218U (en) | 2022-02-01 |
Family
ID=80046282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121473193.4U Active CN215732218U (en) | 2021-06-30 | 2021-06-30 | Luneberg lens antenna system with microwave relay function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215732218U (en) |
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2021
- 2021-06-30 CN CN202121473193.4U patent/CN215732218U/en active Active
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