CN217086872U - Electrically tunable multiport lens antenna device - Google Patents
Electrically tunable multiport lens antenna device Download PDFInfo
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- CN217086872U CN217086872U CN202123071211.9U CN202123071211U CN217086872U CN 217086872 U CN217086872 U CN 217086872U CN 202123071211 U CN202123071211 U CN 202123071211U CN 217086872 U CN217086872 U CN 217086872U
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Abstract
The utility model discloses a multiport lens antenna device with an electric adjustable function, which comprises an outer cover shell, a first side end cover mechanism, a second side end cover mechanism, a rear end cover mechanism, a mounting bracket mechanism, a fixed plate mechanism, a driving mechanism, a transmission mechanism, a first lens mechanism, a first radiation unit mechanism, a first reflecting plate mechanism, a first combiner mechanism, a second lens mechanism, a second radiation unit mechanism, a second reflecting plate mechanism and a second combiner mechanism; the first side end cover mechanism and the second side end cover mechanism are fixedly arranged on two sides of the outer cover shell respectively, the mounting support mechanism is arranged at the bottom of the outer cover shell, one end of the mounting support mechanism is fixedly connected with the bottom of the first side end cover mechanism, and the other end of the mounting support mechanism is fixedly connected with the bottom of the second side end cover mechanism. Adopt the utility model discloses, can solve current plate antenna and have the problem that the coverage distance is short, the port is single and use is convenient inadequately.
Description
Technical Field
The utility model relates to an antenna field especially relates to a multiport lens antenna device that can electricity be transferred.
Background
The conventional plate-shaped antenna has a narrow vertical beam width, and the gain drops rapidly at 3dB extension, so that the fluctuation of signal levels along the line is large, and the conventional plate-shaped antenna is not suitable for long-distance coverage scheme application scenes (such as bridge coverage with large station spacing, high-speed rail coverage and highway coverage). In addition, the traditional plate-shaped antenna has fewer ports for users to use, which is not beneficial to users to independently use multiple frequency bands, and thus the user experience is reduced. Meanwhile, when the angle of the antenna needs to be adjusted, relevant personnel are required to go to the site for manual debugging, and the antenna is not convenient to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a multiport lens antenna device that can electricity be transferred is provided, can solve current plate antenna and have the problem that the coverage distance is short, the port is single and use is convenient inadequately.
In order to solve the technical problem, the utility model provides an electrically tunable multiport lens antenna device, which comprises an outer cover shell, a first side end cover mechanism, a second side end cover mechanism, a rear end cover mechanism, a mounting bracket mechanism, a fixed plate mechanism, a driving mechanism, a transmission mechanism, a first lens mechanism, a first radiation unit mechanism, a first reflection plate mechanism, a first combiner mechanism, a second lens mechanism, a second radiation unit mechanism, a second reflection plate mechanism and a second combiner mechanism; the first side end cover mechanism and the second side end cover mechanism are respectively and fixedly arranged at two sides of the outer cover shell, the mounting bracket mechanism is arranged at the bottom of the outer cover shell, one end of the mounting bracket mechanism is fixedly connected with the bottom of the first side end cover mechanism, the other end of the mounting bracket mechanism is fixedly connected with the bottom of the second side end cover mechanism, the bottom of the outer cover shell is provided with an opening, the rear end cover mechanism is arranged at the opening and is fixedly connected with the outer cover shell, the first lens mechanism and the second lens mechanism are fixedly arranged in the outer cover shell, the first radiation unit mechanism and the first reflecting plate mechanism are both arranged below the first lens mechanism, the first radiation unit mechanism is fixedly arranged on the first reflecting plate mechanism, and the second radiation unit mechanism and the second reflecting plate mechanism are both arranged below the second lens mechanism, the second radiation unit mechanism is fixedly arranged on the second reflection plate mechanism, the first reflection plate mechanism and the second reflection plate mechanism are fixedly arranged on the transmission mechanism and move under the driving of the transmission mechanism, the transmission mechanism is arranged on the fixed plate mechanism and moves along the fixed plate mechanism under the driving of the driving mechanism, and the fixed plate mechanism and the driving mechanism are fixedly arranged on the mounting bracket mechanism; the first combiner mechanism is electrically connected with the first radiation unit mechanism and used for 1800M frequency band communication and D frequency band communication, the second combiner mechanism is electrically connected with the second radiation unit mechanism and used for 1800M frequency band communication and D frequency band communication, and each frequency band is connected with two communication ports.
Preferably, the first lens mechanism and the second lens mechanism are provided at the same level.
Preferably, the first and second lens means are each 400mm in diameter.
Preferably, the first lens mechanism and the second lens mechanism are both luneberg lenses.
Preferably, the transmission mechanism includes a transmission rod and a support frame, one end of the transmission rod is connected with the driving mechanism, the other end of the transmission rod is connected with the support frame, the top of the support frame is fixedly connected with the first reflection plate mechanism and the second reflection plate mechanism, the bottom of the support frame is movably connected with the fixed plate mechanism, and the transmission rod drives the support frame to move along the fixed plate mechanism under the driving of the driving mechanism so as to enable the first reflection plate mechanism and the second reflection plate mechanism to move.
Preferably, the fixing plate mechanism comprises a first fixing module and a running track arranged on the first fixing module, and the running track is fixedly arranged on the mounting bracket mechanism through the first fixing module.
Preferably, the driving mechanism comprises a second fixing module and a driving motor; the driving motor is fixedly arranged on the mounting and rotating support mechanism through the second fixing module.
Preferably, the electrically tunable multiport lens antenna device further comprises a first mounting code clamping mechanism and a second mounting code clamping mechanism, wherein the first mounting code clamping mechanism and the second mounting code clamping mechanism are fixedly arranged at the bottom of the mounting bracket mechanism respectively.
Preferably, the electrically tunable multi-port lens antenna device further comprises a power supply mechanism, a control mechanism and a touch display mechanism, wherein the driving mechanism and the touch display mechanism are electrically connected with the power supply mechanism and the control mechanism, and the control mechanism is electrically connected with the power supply mechanism.
Preferably, the power supply mechanism comprises a power supply module, a voltage conversion module, a first filtering module, a second filtering module, a voltage detection module, a charging module, a switch module and an indication module; the input end of the voltage conversion module, the voltage detection module and the driving mechanism are electrically connected with the power supply module and are grounded through the first filtering module, and the output end of the voltage conversion module is electrically connected with the control mechanism, the touch display mechanism and the indicating module and is grounded through the second filtering module; the control end, the voltage detection module and the indication module of the switch module are respectively electrically connected with the control mechanism, the input end of the switch module is connected with the mains supply, and the output end of the switch module is electrically connected with the charging end of the power module through the charging module.
Implement the utility model has the advantages that:
in the utility model, the first side end cover mechanism and the second side end cover mechanism are respectively fixed on two sides of the housing body, the mounting bracket mechanism is arranged at the bottom of the housing body, one end of the mounting bracket mechanism is fixedly connected with the bottom of the first side end cover mechanism, the other end of the mounting bracket mechanism is fixedly connected with the bottom of the second side end cover mechanism, the bottom of the housing body is provided with an opening, the rear end cover mechanism is arranged at the opening and is fixedly connected with the housing body, the first lens mechanism and the second lens mechanism are fixed in the housing body, the first radiation unit mechanism and the first reflector plate mechanism are both arranged below the first lens mechanism, the first radiation unit mechanism is fixed on the first reflector plate mechanism, the second radiation unit mechanism and the second reflector plate mechanism are both arranged below the second lens mechanism, the second radiation unit mechanism is fixedly arranged on the second reflection plate mechanism, the first reflection plate mechanism and the second reflection plate mechanism are fixedly arranged on the transmission mechanism and move under the driving of the transmission mechanism, the transmission mechanism is arranged on the fixed plate mechanism and moves along the fixed plate mechanism under the driving of the driving mechanism, and the fixed plate mechanism and the driving mechanism are fixedly arranged on the mounting bracket mechanism; the first combiner mechanism is electrically connected with the first radiation unit mechanism and used for 1800M frequency band communication and D frequency band communication, the second combiner mechanism is electrically connected with the second radiation unit mechanism and used for 1800M frequency band communication and D frequency band communication, and each frequency band is connected with two communication ports. The utility model can solve the problems of short covering distance, single port and inconvenient use of the prior plate-shaped antenna; the antenna is synchronously and electrically adjusted through the driving mechanism and the transmission mechanism, so that the use convenience of the antenna is improved; a plurality of antennas are integrated into one antenna, so that the miniaturization of the antenna is realized, multiple sending and multiple receiving are realized, the energy is saved, and the load of a station is reduced; the method is beneficial to reducing the requirements of station sites and reducing the construction investment.
Drawings
Fig. 1 is a schematic view of an external overall structure of an electrically tunable multiport lens antenna apparatus provided in the present invention;
fig. 2 is a schematic diagram of an internal structure of an electrically tunable multiport lens antenna apparatus provided in the present invention;
fig. 3 is a communication schematic block diagram of the electrically tunable multi-port lens antenna device provided in the present invention;
fig. 4 is a driving schematic block diagram of the electrically tunable multi-port lens antenna device provided in the present invention;
fig. 5 is a schematic block diagram of a power supply mechanism provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.
As shown in fig. 1 to 3, the utility model provides a multiport lens antenna device that can be electrically adjusted, including outer cover shell 1, first side end cover mechanism 7, second side end cover mechanism 8, rear end cover mechanism 9, mounting bracket mechanism 10, fixed plate mechanism 4, actuating mechanism 5, drive mechanism 3, first lens mechanism 11, first radiating element mechanism 12, first reflecting plate mechanism 13, first combiner mechanism 14, second lens mechanism 15, second radiating element mechanism 16, second reflecting plate mechanism 17 and second combiner mechanism 18; the first side end cover mechanism 7 and the second side end cover mechanism 8 are respectively and fixedly arranged at two sides of the outer cover shell 1, the mounting bracket mechanism 10 is arranged at the bottom of the outer cover shell 1, one end of the mounting bracket mechanism 10 is fixedly connected with the bottom of the first side end cover mechanism 7, the other end of the mounting bracket mechanism 10 is fixedly connected with the bottom of the second side end cover mechanism 8, an opening 19 is arranged at the bottom of the outer cover shell 1, the rear end cover mechanism 9 is arranged at the opening 19 and fixedly connected with the outer cover shell 1, the first lens mechanism 11 and the second lens mechanism 15 are fixedly arranged in the outer cover shell 1, the first radiation unit mechanism 12 and the first reflection plate mechanism 13 are both arranged below the first lens mechanism 11, the first radiation unit mechanism 12 is fixedly arranged on the first reflection plate mechanism 13, and the second radiation unit mechanism 16 and the second reflection plate mechanism 17 are both arranged below the second lens mechanism 15 The second radiation unit mechanism 16 is fixedly arranged on the second reflection plate mechanism 17, the first reflection plate mechanism 13 and the second reflection plate mechanism 17 are fixedly arranged on the transmission mechanism 3 and move under the driving of the transmission mechanism 3, the transmission mechanism 3 is arranged on the fixed plate mechanism 4 and moves along the fixed plate mechanism 4 under the driving of the driving mechanism 5, and the fixed plate mechanism 4 and the driving mechanism 5 are fixedly arranged on the mounting bracket mechanism 10; the first combiner mechanism 14 is electrically connected to the first radiation unit mechanism 12 and is used for 1800M band communication and D band communication, the second combiner mechanism 18 is electrically connected to the second radiation unit mechanism 16 and is used for 1800M band communication and D band communication, and each band is connected to two communication ports.
It should be noted that, the lens antenna that this scheme adopted, perpendicular beam width is conventional platelike 2 ~ 3 times, and the characteristics of self penetrability in addition, signal coverage distance is elongated, and is more steady. The multi-ball lens antenna technology adopted by the scheme can realize horizontal narrow beams (22-30 degrees) and vertical wide beams (22-30 degrees), which are 65 degrees and 7 degrees relative to the horizontal beams and the vertical beams of the conventional plate-shaped antenna.
In the utility model, the first side end cover mechanism 7 and the second side end cover mechanism 8 are respectively fixed on two sides of the housing body 1, the mounting bracket mechanism 10 is arranged at the bottom of the housing body 1, one end of the mounting bracket mechanism 10 is fixedly connected with the bottom of the first side end cover mechanism 7, the other end of the mounting bracket mechanism 10 is fixedly connected with the bottom of the second side end cover mechanism 8, the bottom of the housing body 1 is provided with an opening 19, the rear end cover mechanism 9 is arranged at the opening 19 and is fixedly connected with the housing body 1, the first lens mechanism 11 and the second lens mechanism 15 are fixed in the housing body 1, the first radiation unit mechanism 12 and the first reflector mechanism 13 are both arranged below the first lens mechanism 11, the first radiation unit mechanism 12 is fixed on the first reflector mechanism 13, the second radiation unit mechanism 16 and the second reflection plate mechanism 17 are both arranged below the second lens mechanism 15, the second radiation unit mechanism 16 is fixedly arranged on the second reflection plate mechanism 17, the first reflection plate mechanism 13 and the second reflection plate mechanism 17 are both fixedly arranged on the transmission mechanism 3 and move under the driving of the transmission mechanism 3, the transmission mechanism 3 is arranged on the fixed plate mechanism 4 and moves along the fixed plate mechanism 4 under the driving of the driving mechanism 5, and the fixed plate mechanism 4 and the driving mechanism 5 are both fixedly arranged on the mounting bracket mechanism 10; the first combiner mechanism 14 is electrically connected to the first radiation unit mechanism 12 and is used for 1800M band communication and D band communication, the second combiner mechanism 18 is electrically connected to the second radiation unit mechanism 16 and is used for 1800M band communication and D band communication, and each band is connected to two communication ports. The utility model can solve the problems of short covering distance, single port and inconvenient use of the prior plate-shaped antenna; the antenna is synchronously and electrically adjusted through the driving mechanism 5 and the transmission mechanism 3, so that the use convenience of the antenna is improved; a plurality of antennas are integrated into one antenna, so that the miniaturization of the antenna is realized, multiple sending and multiple receiving are realized, the energy is saved, and the load of a station is reduced; the method is beneficial to reducing the demand of site and reducing the construction investment.
Preferably, the first lens mechanism 11 and the second lens mechanism 15 are provided at the same level.
Further, the diameters of the first lens mechanism 11 and the second lens mechanism 15 are both 400 mm.
More preferably, the first lens mechanism 11 and the second lens mechanism 15 are each a luneberg lens.
Preferably, the transmission mechanism 3 includes a transmission rod 31 and a support frame 32, one end of the transmission rod 31 is connected with the driving mechanism 5, the other end is connected with the support frame 32, the top of the support frame 32 is fixedly connected with the first reflection plate mechanism 13 and the second reflection plate mechanism 17, the bottom of the support frame 32 is movably connected with the fixing plate mechanism 4, and the transmission rod 31 drives the support frame 32 to move along the fixing plate mechanism 4 under the driving of the driving mechanism 5 so as to enable the first reflection plate mechanism 13 and the second reflection plate mechanism 14 to move.
Preferably, the fixing plate mechanism 4 includes a first fixing module 41 and a running rail 42 disposed on the first fixing module 41, and the running rail 42 is fixedly disposed on the mounting bracket mechanism 10 through the first fixing module 41.
Further, the driving mechanism 5 includes a second fixed module 51 and a driving motor 52; the driving motor 52 is fixedly arranged on the mounting and rotating bracket mechanism 10 through the second fixing module 51.
Preferably, the electrically tunable multiport lens antenna device further comprises a first mounting clamping mechanism 20 and a second mounting clamping mechanism 21, wherein the first mounting clamping mechanism and the second mounting clamping mechanism are respectively and fixedly arranged at the bottom of the mounting bracket mechanism.
In the present embodiment, the first mounting fixture 20 and the second mounting fixture 21 are fixed to improve the stability of the antenna device.
As shown in fig. 4, the electrically tunable multi-port lens antenna device further includes a power supply mechanism 6, a control mechanism 22 and a touch display mechanism 23, the driving mechanism 5 and the touch display mechanism 23 are electrically connected to the power supply mechanism 6 and the control mechanism 22, and the control mechanism 22 is electrically connected to the power supply mechanism 6.
In this embodiment, the user can control the antenna device through the touch display mechanism.
As shown in fig. 5, the power supply mechanism 6 includes a power supply module 61, a voltage conversion module 62, a first filtering module 63, a second filtering module 64, a voltage detection module 65, a charging module 66, a switch module 67, and an indication module 68; the input end of the voltage conversion module 62, the voltage detection module 55 and the driving mechanism 5 are electrically connected to the power module 61 and grounded through the first filtering module 63, and the output end of the voltage conversion module 62 is electrically connected to the control mechanism 22, the touch display mechanism 23 and the indication module 68 and grounded through the second filtering module 64; the control end of the switch module 67, the voltage detection module 65 and the indication module 67 are respectively electrically connected to the control mechanism 22, the input end of the switch module 67 is connected to the mains supply, and the output end of the switch module 67 is electrically connected to the charging end of the power module 61 through the charging module 66.
It should be noted that the control mechanism is a single chip, but is not limited thereto; the singlechip integrates various components such as an arithmetic unit, a controller, a memory, an input/output device and the like, and realizes various functions such as signal processing, data storage and the like. For example, an arithmetic unit includes a large number of comparison circuits, and can perform logical operation processing on a received signal instruction. In this embodiment, the voltage conversion module 62 converts the working voltage to obtain a working voltage suitable for each electronic component, and the first filtering module 63 and the second filtering module 64 perform filtering to improve the stability of power supply; the voltage detection module 65 monitors the residual electric quantity of the power supply module in real time, when the residual electric quantity is smaller than the preset electric quantity, the switch module is turned on, and the commercial power charges the power supply module through the charging module, so that the power supply module can be timely supplemented, and the cruising ability of the power supply module can be improved; when the residual electric quantity is smaller than the preset electric quantity for a long time, the fault of other parts such as the commercial power supply system or the charging module is shown, and at the moment, the fault is indicated through the indicating module, and the user is reminded of overhauling in time.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. An electrically tunable multiport lens antenna device is characterized by comprising an outer cover shell, a first side end cover mechanism, a second side end cover mechanism, a rear end cover mechanism, a mounting bracket mechanism, a fixed plate mechanism, a driving mechanism, a transmission mechanism, a first lens mechanism, a first radiation unit mechanism, a first reflection plate mechanism, a first combiner mechanism, a second lens mechanism, a second radiation unit mechanism, a second reflection plate mechanism and a second combiner mechanism;
the first side end cover mechanism and the second side end cover mechanism are respectively and fixedly arranged at two sides of the outer cover shell, the mounting bracket mechanism is arranged at the bottom of the outer cover shell, one end of the mounting bracket mechanism is fixedly connected with the bottom of the first side end cover mechanism, the other end of the mounting bracket mechanism is fixedly connected with the bottom of the second side end cover mechanism, the bottom of the outer cover shell is provided with an opening, the rear end cover mechanism is arranged at the opening and is fixedly connected with the outer cover shell, the first lens mechanism and the second lens mechanism are fixedly arranged in the outer cover shell, the first radiation unit mechanism and the first reflecting plate mechanism are both arranged below the first lens mechanism, the first radiation unit mechanism is fixedly arranged on the first reflecting plate mechanism, and the second radiation unit mechanism and the second reflecting plate mechanism are both arranged below the second lens mechanism, the second radiation unit mechanism is fixedly arranged on the second reflection plate mechanism, the first reflection plate mechanism and the second reflection plate mechanism are fixedly arranged on the transmission mechanism and move under the driving of the transmission mechanism, the transmission mechanism is arranged on the fixed plate mechanism and moves along the fixed plate mechanism under the driving of the driving mechanism, and the fixed plate mechanism and the driving mechanism are fixedly arranged on the mounting bracket mechanism;
the first combiner mechanism is electrically connected with the first radiation unit mechanism and used for 1800M frequency band communication and D frequency band communication, the second combiner mechanism is electrically connected with the second radiation unit mechanism and used for 1800M frequency band communication and D frequency band communication, and each frequency band is connected with two communication ports.
2. An electrically tunable multiport lens antenna assembly according to claim 1, wherein said first and second lens mechanisms are disposed at the same level.
3. The electrically tunable multi-port lens antenna apparatus of claim 1, wherein the first and second lens mechanisms each have a diameter of 400 mm.
4. An electrically tunable multiport lens antenna assembly according to claim 1, wherein said first and second lens mechanisms are each a luneberg lens.
5. The electrically tunable multi-port lens antenna device according to claim 1, wherein the transmission mechanism includes a transmission rod and a support frame, one end of the transmission rod is connected to the driving mechanism, the other end of the transmission rod is connected to the support frame, the top of the support frame is fixedly connected to the first reflector plate mechanism and the second reflector plate mechanism, the bottom of the support frame is movably connected to the fixing plate mechanism, and the transmission rod drives the support frame to move along the fixing plate mechanism under the driving of the driving mechanism so as to move the first reflector plate mechanism and the second reflector plate mechanism.
6. The electrically tunable multiport lens antenna assembly of claim 1, wherein said mounting plate mechanism includes a first mounting module and a running rail disposed on said first mounting module, said running rail being secured to said mounting bracket mechanism by said first mounting module.
7. An electrically tunable multiport lens antenna arrangement according to claim 1, characterized in that said driving mechanism comprises a second stationary module and a driving motor;
the driving motor is fixedly arranged on the mounting bracket mechanism through the second fixing module.
8. The electrically tunable multi-port lens antenna device according to claim 1, further comprising a first mounting code clamping mechanism and a second mounting code clamping mechanism, wherein the first mounting code clamping mechanism and the second mounting code clamping mechanism are respectively fixedly disposed at the bottom of the mounting bracket mechanism.
9. An electrically tunable multiport lens antenna device according to any of claims 1 to 8, further comprising a power supply mechanism, a control mechanism and a touch display mechanism, wherein said driving mechanism and touch display mechanism are electrically connected to said power supply mechanism and control mechanism, and said control mechanism is electrically connected to said power supply mechanism.
10. The electrically tunable multiport lens antenna assembly of claim 9, wherein said power supply mechanism comprises a power module, a voltage conversion module, a first filtering module, a second filtering module, a voltage detection module, a charging module, a switching module, and an indication module;
the input end of the voltage conversion module, the voltage detection module and the driving mechanism are electrically connected with the power supply module and are grounded through the first filtering module, and the output end of the voltage conversion module is electrically connected with the control mechanism, the touch display mechanism and the indicating module and is grounded through the second filtering module;
the control end, the voltage detection module and the indication module of the switch module are respectively electrically connected with the control mechanism, the input end of the switch module is connected with the mains supply, and the output end of the switch module is electrically connected with the charging end of the power module through the charging module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123071211.9U CN217086872U (en) | 2021-12-08 | 2021-12-08 | Electrically tunable multiport lens antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123071211.9U CN217086872U (en) | 2021-12-08 | 2021-12-08 | Electrically tunable multiport lens antenna device |
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| Publication Number | Publication Date |
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| CN217086872U true CN217086872U (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123071211.9U Active CN217086872U (en) | 2021-12-08 | 2021-12-08 | Electrically tunable multiport lens antenna device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116581516A (en) * | 2023-04-18 | 2023-08-11 | 佛山市粤海信通讯有限公司 | Electrically tunable lens antenna |
-
2021
- 2021-12-08 CN CN202123071211.9U patent/CN217086872U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116581516A (en) * | 2023-04-18 | 2023-08-11 | 佛山市粤海信通讯有限公司 | Electrically tunable lens antenna |
| CN116581516B (en) * | 2023-04-18 | 2023-12-05 | 佛山市粤海信通讯有限公司 | Electrically tunable lens antenna |
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