CN114284725A - Shielding type high-power microwave waveguide phase-shifting control device - Google Patents
Shielding type high-power microwave waveguide phase-shifting control device Download PDFInfo
- Publication number
- CN114284725A CN114284725A CN202111460242.5A CN202111460242A CN114284725A CN 114284725 A CN114284725 A CN 114284725A CN 202111460242 A CN202111460242 A CN 202111460242A CN 114284725 A CN114284725 A CN 114284725A
- Authority
- CN
- China
- Prior art keywords
- power
- shielding
- cavity
- power microwave
- control device
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a shielding type high-power microwave waveguide phase-shifting control device which comprises a control system and an optical fiber feed-through, wherein the control system is in communication connection with an external upper computer through the optical fiber feed-through. The invention solves the problems that the prior art can not effectively solve the electromagnetic compatibility problem under the high-power microwave environment, the electromagnetic shielding effect is not good, and the like.
Description
Technical Field
The invention relates to the technical field of microwave waveguide control, in particular to a shielding type high-power microwave waveguide phase-shifting control device.
Background
With the development of high-power microwave technology, high-power waveguide slot array antennas are widely applied in domestic and foreign research units. At present, the technology for realizing beam phase control scanning by a high-power microwave array is mostly in a laboratory principle verification stage, and due to the real-time requirement of a phase shifter control system, the phase shifter control system needs to be integrated with a phase shifter and works in a high-power microwave environment, so that the technical problem of electromagnetic compatibility in the high-power microwave environment must be solved by the phase shifter control system.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a shielding type high-power microwave waveguide phase-shifting control device, which solves the problems that the prior art cannot effectively solve the electromagnetic compatibility problem under the high-power microwave environment, has poor electromagnetic shielding effect and the like.
The technical scheme adopted by the invention for solving the problems is as follows:
the utility model provides a shielding type high power microwave waveguide phase shift controlling means, includes control system, optic fibre feed through, control system and external host computer pass through optic fibre feed through communication connection.
As a preferred technical scheme, the control system comprises a power supply module and a photoelectric conversion module which are electrically connected with each other, and the photoelectric conversion module is in communication connection with an external upper computer through the optical fiber feed-through.
As a preferred technical solution, the photoelectric conversion module further comprises a shielding cavity, and the power module and the photoelectric conversion module are arranged in the shielding cavity.
As a preferred technical solution, the optical fiber feed-through is disposed on the shielding cavity, and the optical fiber feed-through is sealed with the shielding cavity in a vacuum isolation manner.
As a preferred technical solution, the power supply module further comprises a power supply filter arranged in the shielding cavity, and the power supply filter is electrically connected with the power supply module.
As a preferable technical solution, the power supply further includes a DC-DC isolator disposed in the shielding cavity, and the DC-DC isolator is electrically connected to the power supply module.
As a preferable technical solution, the waveguide device further comprises a waveguide cavity connected with the shielding cavity.
As a preferable technical solution, a waveguide short-circuit piston is arranged in the waveguide cavity.
As a preferred technical scheme, the waveguide short-circuit device further comprises a laser displacement sensor arranged in the shielding cavity, wherein the laser displacement sensor is used for measuring the position of the waveguide short-circuit piston.
As a preferred technical scheme, the vacuum insulation shielding device further comprises a power supply aerial plug arranged on the shielding cavity, wherein the power supply aerial plug is electrically connected with the power supply module, and the power supply aerial plug is sealed with the shielding cavity in a vacuum insulation manner.
Compared with the prior art, the invention has the following beneficial effects:
the electromagnetic shielding of the phase shifter control system is realized through various electromagnetic protection measures such as optical fiber communication, power isolation, power filtering, a shielding cavity, vacuum isolation, measurement of actual phase change measured by a laser position sensor and the like, and the high-power microwave electromagnetic compatibility protection of the phase shifter control system in the order of hundreds of megawatts is realized; therefore, the problems that the electromagnetic compatibility problem under the high-power microwave environment cannot be effectively solved, the electromagnetic shielding effect is poor and the like in the prior art are solved.
Drawings
FIG. 1 is a schematic structural diagram of a shielded high-power microwave waveguide phase-shift control device according to the present invention;
FIG. 2 is one of the enlarged partial views of FIG. 1;
FIG. 3 is a second enlarged view of the portion of FIG. 1;
fig. 4 is a circuit diagram of a photoelectric conversion module in embodiment 4 of the present invention;
fig. 5 is a reference diagram illustrating a type selection of the photoelectric conversion module in embodiment 4 of the present invention;
reference numbers and corresponding part names in the drawings: 1. the system comprises a power filter, 2, a microwave shielding net, 3, a DC-DC isolator, 4, a laser displacement sensor, 5, a motor controller, 6, a servo motor, 7, a power module, 8, a photoelectric conversion module, 9, a shielding cavity, 10, an optical fiber feed-through, 11, a power supply aviation plug, 12, a waveguide cavity, 13, a waveguide short-circuit piston and 30, and a control system.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
Example 1
As shown in fig. 1 to fig. 5, the shielded high-power microwave waveguide phase shift control device includes a control system 30 and an optical fiber feed-through 10, wherein the control system 30 is in communication connection with an external host computer through the optical fiber feed-through 10.
Due to the adoption of the optical fiber feed-through 10, electromagnetic interference signals are prevented from being transmitted to the control system 30 along a lead, so that the problems that the electromagnetic compatibility problem under the high-power microwave environment cannot be effectively solved, the electromagnetic shielding effect is poor and the like in the prior art are solved.
As a preferred technical solution, the control system 30 includes a power module 7 and a photoelectric conversion module 8 that are electrically connected to each other, and the photoelectric conversion module 8 is in communication connection with an external upper computer through the optical fiber feedthrough 10.
The power supply module 7 supplies power, and the photoelectric conversion module 8 realizes the functions of converting electricity into light and converting light into electricity for control and data signals.
As a preferable technical solution, the photovoltaic module further includes a shielding cavity 9, and the power module 7 and the photovoltaic module 8 are disposed in the shielding cavity 9.
The shielding cavity 9 isolates high-power microwaves, and simultaneously shields the near-field radiation electric field of the high-power microwave antenna, so as to protect the circuit of the control system 30 from being damaged or interfered by the space high-power microwave radiation field. The shielding cavity 9 realizes microwave shielding of the electronic device and further prevents external electromagnetic interference signals from entering.
As a preferred technical solution, the optical fiber feed-through 10 is disposed on the shielding cavity 9, and the optical fiber feed-through 10 is sealed with the shielding cavity 9 in a vacuum isolation manner.
This further prevents the entry of external electromagnetic interference signals.
As a preferable technical solution, the power supply module further comprises a power supply filter 1 disposed in the shielding cavity 9, and the power supply filter 1 is electrically connected to the power supply module 7.
The power filter 1 realizes filtering of the power module 7, further preventing electromagnetic interference.
As a preferable technical solution, the power supply device further includes a DC-DC isolator 3 disposed in the shielding cavity 9, and the DC-DC isolator 3 is electrically connected to the power supply module 7.
The DC-DC isolator 3 achieves isolation of the power supply module 7, further preventing electromagnetic interference.
Example 2
As shown in fig. 1 to fig. 5, as a further optimization of embodiment 1, this embodiment includes all the technical features of embodiment 1, and in addition, this embodiment further includes the following technical features:
as a preferred technical solution, the waveguide device further comprises a waveguide cavity 12 connected with the shielding cavity 9.
As a preferred technical solution, a waveguide short-circuiting piston 13 is arranged in the waveguide cavity 12.
The waveguide short-circuit piston 13 realizes the change of the phase in the waveguide and has a certain high-power microwave isolation effect on the shielding cavity 9.
As a preferable technical solution, the waveguide short-circuit device further comprises a laser displacement sensor 4 arranged in the shielding cavity 9, wherein the laser displacement sensor 4 is used for measuring the position of the waveguide short-circuit piston 13.
The laser displacement sensor 4 is used for replacing a conventional magnetic grating ruler (or a grating ruler) to measure the actual displacement of the waveguide short-circuit piston 13, so that the damage of high-power microwaves to measurement components is avoided, and the actual measurement of the phase change of the transmitted microwaves is realized.
As a preferred technical scheme, the vacuum insulation type air conditioner further comprises a power supply aviation plug 11 arranged on the shielding cavity 9, wherein the power supply aviation plug 11 is electrically connected with the power supply module 7, and the power supply aviation plug 11 and the shielding cavity 9 are sealed in a vacuum insulation manner.
This further prevents the entry of external electromagnetic interference signals.
Example 3
As shown in fig. 1 to 5, this embodiment includes all the technical features of embodiment 1 and embodiment 2, and this embodiment provides a more detailed implementation manner on the basis of embodiment 1 and embodiment 2.
The control system 30 receives phase shift information (the moving distance of the waveguide short-circuit piston 1313) issued by the upper computer through the optical fiber, sends a phase shift signal to the motor controller through the optical fiber feed-through 10 and the photoelectric conversion module 8, and controls the servo motor 6 to drag the waveguide short-circuit piston 13, so that the microwave phase in the waveguide is changed. After the waveguide phase control is completed, the actual moving distance of the waveguide short-circuit piston 13 is measured through the laser position sensor, and the actual moving distance information of the waveguide short-circuit piston 13 is fed back to the upper computer through the optical fiber through the photoelectric conversion module 8.
The following steps:
the power filter 1 realizes filtering of a system direct-current power supply;
the microwave shielding net 2 realizes that laser emitted and reflected by the laser position sensor passes through the shielding net, and simultaneously shields microwaves in the phase shifter waveguide cavity 12, thereby protecting electronic components in the phase shifter control system 30 shielding cavity 9.
The DC-DC isolator 3 achieves isolation of the control system 30 DC supply system.
The laser displacement sensor 4 realizes the measurement of the actual position of the waveguide short-circuit piston 13 of the phase shifter;
the motor controller 5 realizes the control of the servo motor 6 of the waveguide phase shifter dragging the waveguide short-circuit piston 13;
the servo motor 6 realizes the rapid dragging of the waveguide short-circuit piston 13 of the phase shifter;
the power supply module 7 realizes power supply to the phase-shifting system;
the photoelectric conversion module 8 realizes the functions of converting electricity into light and converting light into electricity for control and data signals;
the shielding cavity 9 is used for shielding microwaves of electronic devices such as the motor controller 5, the servo motor 6, the laser displacement sensor 4, the power module 7, the DC-DC isolator 3, the power filter 1, the photoelectric conversion module 8 and the like;
the optical fiber feed-through 10 realizes signal access and vacuum sealing isolation of the optical fiber access waveguide isolation cavity;
the power supply aviation plug 11 realizes the access and the vacuum sealing isolation of a power supply;
the waveguide cavity 12 realizes high-power microwave transmission;
the waveguide short-circuit piston 13 changes the phase in the waveguide by moving the waveguide short-circuit piston 13, and meanwhile, the waveguide short-circuit piston 13 has a certain high-power microwave isolation function for the shielding cavity 9 of the phase shifter control system 30;
the invention is composed of: the high-power waveguide phase shifter comprises a high-power waveguide phase shifter waveguide cavity 12, a phase shifter control system 30 shielding cavity 9, a waveguide short-circuit piston 13, a servo motor 6, a motor controller 5, a laser displacement sensor 4, a photoelectric conversion module 8, an optical fiber feed-through 10, a power supply aviation plug 11, a power supply module 7, a power supply filter 1, a DC-DC isolator 3 and the like;
preferably, a phase shifter waveguide short-circuit piston 13 is arranged in the high-power waveguide phase shifter waveguide cavity 12, high-power microwaves transmitted in the waveguide cavity 12 are isolated by the waveguide short-circuit piston 13, and a small part of the high-power microwaves enter the shielding cavity 9 of the phase shifter control system 30 through a motor transmission structure;
preferably, the high-power microwave shielding cavity 9 will further shield a small amount of high-power microwaves isolated by the waveguide short-circuit piston 13 of the waveguide cavity 12, and at the same time, the high-power microwave shielding cavity 9 will shield the near-field radiation electric field of the high-power microwave antenna, so as to protect the circuit of the phase shift control system 30 in the shielding cavity 9 from being damaged or interfered by the space high-power microwave radiation field;
preferably, the laser displacement sensor 4 replaces a conventional magnetic grating ruler (or a grating ruler) working in a high-power microwave environment of the waveguide cavity 12, and feeds back the actual displacement of the waveguide short-circuit piston 13 in real time to realize the measurement of the actual phase of the microwave;
preferably, the photoelectric conversion module 8 realizes optical fiber communication of information between the phase shift control system 30 and the upper computer, and cuts off electromagnetic conducted interference;
preferably, the optical fiber feed-through 10 realizes vacuum sealing and signal transmission of the optical fiber in and out of the shielding cavity 9;
preferably, the power supply aviation plug 11 realizes the vacuum sealing and power supply leading-in of the power supply wire of the phase shift control system 30 entering the shielding cavity 9;
preferably, the power filter 1 and the DC-DC isolator 3 filter and isolate the high power microwave conducted interference signals introduced by the power drive supply lines.
Preferably, the power module 7 supplies power to the motor controller 5, the servo motor 6, the laser displacement sensor 4, the photoelectric conversion module 8, the DC-DC isolator 3 and the like.
Preferably, the servo motor 6 driver and the servo motor 6 are dragged to the waveguide short-circuit piston 13 to move, so that the transmission phase of the high-power microwave is changed.
The electromagnetic shielding device realizes electromagnetic shielding on the phase shifter control system 30 through various electromagnetic protection measures such as optical fiber communication, power isolation, power filtering, design of a shielding cavity 9 and the like, and realizes high-power microwave electromagnetic compatibility protection of the phase shifter control system in the order of 30 megawatts.
Aiming at solving the technical requirement of electromagnetic compatibility when the high-power microwave waveguide phase shifter control system 30 works in a high-power microwave electromagnetic environment, the invention comprises the following steps: the high-power microwave electromagnetic compatibility of the phase-shifting control system 30 is realized by designing a shielding cavity 9 for placing the phase-shifting control system 30, designing power supply filtering and isolation of the phase-shifting control system 30, designing signal communication between the phase-shifting control system 30 and an upper computer, and adopting technical measures such as optical fiber communication, measuring of actual phase change by designing a laser position sensor and the like. The electromagnetic compatibility design is verified by high-power microwave experiments at present.
The technical scheme of the invention is as follows:
the high-precision dragging of the waveguide short-circuit piston 13 is realized by arranging the motor controller 5 and the servo motor 6, so that the phase change of high-power microwaves is realized. The high-power microwave waveguide phase shifter control system 30 is placed in a field environment with severe phase shift in high-power microwave transmission, and electromagnetic damage and interference of high-power microwave transmission and space high-power microwave transmission in the phase shifter to the phase shift control system 30 are reduced by arranging the shielding cavity 9. The suppression of the high-power microwave conducted interference is realized by filtering the power supply of the control system 30, isolating the DC-DC and transmitting the control signal by the control system 30 by adopting optical fiber transmission. Vacuum isolation of a power line and an optical fiber access shielding cavity 9 is achieved through a power source vacuum aerial plug and an optical fiber feed-through 10, a vacuum environment in the shielding cavity 9 is maintained, and high-power microwave insulation in the shielding cavity 9 is achieved. The laser displacement sensor 4 is used for replacing a conventional magnetic grating ruler (or a grating ruler) to measure the actual displacement of the waveguide short-circuit piston 13 of the phase shifter, so that the damage of high-power microwaves to measurement components is avoided, and the actual measurement of the phase change of the transmitted microwaves is realized. The transmission and isolation of high-power microwaves are realized by arranging a high-power waveguide phase shifter waveguide cavity 12 and a waveguide short-circuit piston 13.
The working principle of the invention is as follows:
high power microwave waveguide phase shifter control system 30 operates in a high power microwave field environment and needs to address electromagnetic interference radiated from antenna near field high power microwave space, high power microwave electromagnetic interference transmitted within phase shifter waveguide cavity 12, and high voltage pulse interference from pulsed power sources conducted through the housing of waveguide cavity 12.
In order to shield the high power microwave of transmission and space radiation, the shielding cavity 9 of the phase shifter control system 30 is a closed cavity, and the vacuum insulation is kept in the cavity. A phase shifter waveguide short-circuit piston 13 and a microwave shielding net 2 of the shielding cavity 9 are arranged between an electronic device in the shielding cavity 9 and microwaves from a phase shifter transmission waveguide, and the shielding cavity 9 is designed to enable the microwave power density in the shielding cavity 9 to be smaller than a high-power microwave interference threshold of general electronic equipment, namely 6kV/m (10w/cm 2). After power supply filtering and DC-DC isolation are adopted, the interference of external high-power microwave space radiation and low-frequency high-voltage pulse on a power line is inhibited. Fiber optic communication is employed to prevent electromagnetic interference from propagating along the conductor to the phasing control system 30 in the shielded cavity 9. For the actual phase shift measurement of the phase shifter, different from the traditional method of adopting a magnetic grating ruler (or a grating ruler), the method adopts a laser position sensor arranged in a shielding cavity 9, and measures the actual displacement of the waveguide short-circuit piston 13 of the phase shifter through 2 holes of a microwave shielding net to obtain the actual phase change, thereby avoiding the technical problem that the detection circuit components of the magnetic grating ruler (or the grating ruler) are damaged due to the exposure in higher microwave field intensity when the magnetic grating ruler (or the grating ruler) is adopted for design.
The electromagnetic compatibility design of the high-power microwave waveguide phase shifter control system 30 can effectively solve the technical problem of electromagnetic compatibility of the phase shifter control system 30 in a high-power microwave field environment, and further realize the technical problem of real-time phase control scanning of high-power microwave array antenna beams.
Example 4
As shown in fig. 1 to 5, this embodiment includes all the technical features of embodiments 1 to 3, and this embodiment provides a more detailed implementation manner on the basis of embodiments 1 to 3.
An L-band high-power microwave waveguide phase shifter control system 30 is designed for electromagnetic compatibility. The dimensions of the phase shifter waveguide are designed to be 156mm in broadside dimension and 40mm in narrow side dimension. The maximum electric field fed into the 375MW shielding cavity 9 is 1.2kV/m (0.4 w/cm)2) And is much smaller than the high-power microwave electromagnetic interference threshold. The motor driver selects a Gold Solo Bee series motion driver from Elmo corporation in Israel; the servo motor 6 selects an EC-i30 series 75W servo brushless DC motor of Switzerland maxon; the laser displacement sensor 4 is a loose HG-C1200 type laser displacement sensor 4, and the main parameters are as follows: measuring the distance to be 120-280 mm; the measuring range is 160 mm; the measurement precision is 0.2 mm; the laser sensor is arranged at the rear end, and the distance between the waveguide short-circuit piston and the sensor is changed to 141-261 mm during measurement. And the installation and measurement requirements are met. The photoelectric conversion selects a high-performance optical fiber transceiver of AVAGO company, converts an EtherCAT network cable interface into optical fiber signal transmission, and enhances the anti-interference capability of the system. The power supply DC-DC isolation module selects a TDK-Lambda GQA120 series module, and the output power of the module is 120W, 24V/5A.
After the design is completed, a high-power microwave electromagnetic compatibility verification experiment of the high-power microwave phase shifter control system 30 is carried out, and an experiment result shows that the phase shifter control system 30 can bear about 375MW of high-power microwave electromagnetic interference.
As described above, the present invention can be preferably realized.
All features disclosed in all embodiments in this specification, or all methods or process steps implicitly disclosed, may be combined and/or expanded, or substituted, in any way, except for mutually exclusive features and/or steps.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.
Claims (10)
1. The shielding type high-power microwave waveguide phase-shifting control device is characterized by comprising a control system (30) and an optical fiber feed-through (10), wherein the control system (30) is in communication connection with an external upper computer through the optical fiber feed-through (10).
2. The shielded high-power microwave waveguide phase-shifting control device according to claim 1, wherein the control system (30) comprises a power module (7) and a photoelectric conversion module (8) which are electrically connected with each other, and the photoelectric conversion module (8) is in communication connection with an external upper computer through the optical fiber feed-through (10).
3. The shielding type high-power microwave waveguide phase shift control device according to claim 2, further comprising a shielding cavity (9), wherein the power module (7) and the photoelectric conversion module (8) are disposed in the shielding cavity (9).
4. The shielded high-power microwave waveguide phase shift control device according to claim 3, wherein the optical fiber feed-through (10) is disposed on the shielding cavity (9), and the optical fiber feed-through (10) is vacuum-isolated and sealed from the shielding cavity (9).
5. The shielding type high-power microwave waveguide phase-shifting control device according to claim 4, further comprising a power filter (1) disposed in the shielding cavity (9), wherein the power filter (1) is electrically connected to the power module (7).
6. The shielded high-power microwave waveguide phase-shifting control device according to claim 5, further comprising a DC-DC isolator (3) disposed in the shielding cavity (9), wherein the DC-DC isolator (3) is electrically connected to the power module (7).
7. The shielded high-power microwave waveguide phase shift control device according to claim 6, further comprising a waveguide cavity (12) connected to the shielded cavity (9).
8. The shielded high-power microwave waveguide phase shift control device according to claim 7, wherein the waveguide cavity (12) is internally provided with a waveguide short-circuit piston (13).
9. The shielded high-power microwave waveguide phase-shifting control device according to claim 8, further comprising a laser displacement sensor (4) disposed in the shielding cavity (9), wherein the laser displacement sensor (4) is used for measuring the position of the waveguide short-circuit piston (13).
10. The shielded high-power microwave waveguide phase shift control device according to any one of claims 4 to 9, further comprising a power supply aerial plug (11) disposed on the shielding cavity (9), wherein the power supply aerial plug (11) is electrically connected to the power supply module (7), and the power supply aerial plug (11) is vacuum-isolated and sealed from the shielding cavity (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111460242.5A CN114284725B (en) | 2021-12-02 | 2021-12-02 | Phase-shifting control device for shielding type high-power microwave waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111460242.5A CN114284725B (en) | 2021-12-02 | 2021-12-02 | Phase-shifting control device for shielding type high-power microwave waveguide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114284725A true CN114284725A (en) | 2022-04-05 |
| CN114284725B CN114284725B (en) | 2023-04-25 |
Family
ID=80870793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111460242.5A Active CN114284725B (en) | 2021-12-02 | 2021-12-02 | Phase-shifting control device for shielding type high-power microwave waveguide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114284725B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116723689A (en) * | 2023-08-10 | 2023-09-08 | 西南科技大学 | Circular ring-shaped energy selection surface applied to circular waveguide and circular waveguide |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4814774A (en) * | 1986-09-05 | 1989-03-21 | Herczfeld Peter R | Optically controlled phased array system and method |
| JPH11352164A (en) * | 1998-06-03 | 1999-12-24 | Tokin Corp | Phase matching photoelectric field sensor |
| CN103515677A (en) * | 2013-09-26 | 2014-01-15 | 西北核技术研究所 | High-power microwave phase shifter |
| CN104991395A (en) * | 2015-07-06 | 2015-10-21 | 上海交通大学 | Photon radio frequency phase shifter with silicon-based micro disc resonant cavity |
| CN106877930A (en) * | 2017-01-11 | 2017-06-20 | 中国科学院上海光学精密机械研究所 | High-precision optical fiber frequency Transmission system |
| US20180175501A1 (en) * | 2016-12-16 | 2018-06-21 | Samsung Electronics Co .. Ltd. | Beam steering optical phased arrays |
| CN109188107A (en) * | 2018-09-05 | 2019-01-11 | 中国工程物理研究院应用电子学研究所 | A kind of signal unperturbed test macro of anti-strong electromagnetic |
| CN111277334A (en) * | 2020-01-20 | 2020-06-12 | 中国科学院上海光学精密机械研究所 | Large-aperture array type multidimensional optical phased array communication system |
| CN113566983A (en) * | 2021-07-21 | 2021-10-29 | 中国人民解放军国防科技大学 | Laser coherent array distributed phase control system and control method |
-
2021
- 2021-12-02 CN CN202111460242.5A patent/CN114284725B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4814774A (en) * | 1986-09-05 | 1989-03-21 | Herczfeld Peter R | Optically controlled phased array system and method |
| JPH11352164A (en) * | 1998-06-03 | 1999-12-24 | Tokin Corp | Phase matching photoelectric field sensor |
| CN103515677A (en) * | 2013-09-26 | 2014-01-15 | 西北核技术研究所 | High-power microwave phase shifter |
| CN104991395A (en) * | 2015-07-06 | 2015-10-21 | 上海交通大学 | Photon radio frequency phase shifter with silicon-based micro disc resonant cavity |
| US20180175501A1 (en) * | 2016-12-16 | 2018-06-21 | Samsung Electronics Co .. Ltd. | Beam steering optical phased arrays |
| CN106877930A (en) * | 2017-01-11 | 2017-06-20 | 中国科学院上海光学精密机械研究所 | High-precision optical fiber frequency Transmission system |
| CN109188107A (en) * | 2018-09-05 | 2019-01-11 | 中国工程物理研究院应用电子学研究所 | A kind of signal unperturbed test macro of anti-strong electromagnetic |
| CN111277334A (en) * | 2020-01-20 | 2020-06-12 | 中国科学院上海光学精密机械研究所 | Large-aperture array type multidimensional optical phased array communication system |
| CN113566983A (en) * | 2021-07-21 | 2021-10-29 | 中国人民解放军国防科技大学 | Laser coherent array distributed phase control system and control method |
Non-Patent Citations (1)
| Title |
|---|
| 朱海柯: "全硅高阶电光调制器与光电探测器的研究" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116723689A (en) * | 2023-08-10 | 2023-09-08 | 西南科技大学 | Circular ring-shaped energy selection surface applied to circular waveguide and circular waveguide |
| CN116723689B (en) * | 2023-08-10 | 2023-10-17 | 西南科技大学 | Circular ring-shaped energy selection surface applied to circular waveguide and circular waveguide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114284725B (en) | 2023-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114284725B (en) | Phase-shifting control device for shielding type high-power microwave waveguide | |
| CN106546857A (en) | The power drive system electromagnetic interference test system of electric automobile and method of testing | |
| US6597255B1 (en) | Power transmission system for a Faraday cage power source | |
| CN109450543B (en) | All-fiber communication high-power microwave source measurement and control system | |
| EP2348635A2 (en) | Electromagnetic interference-resistant control device | |
| CN207198574U (en) | Electromagnetism interference control system | |
| CN108458751B (en) | Multi-parameter measurement system based on remote power supply and wireless data transmission | |
| CN211375048U (en) | Millimeter wave radar simulator shielding box for intelligent automobile electromagnetic compatibility test | |
| CN105553603A (en) | Anti-electromagnetic interference unmanned aerial vehicle and inspection method thereof | |
| US11454656B2 (en) | Signal generating device and measurement device | |
| EP4057518B1 (en) | Power line communication apparatus and power generating system | |
| CN209017044U (en) | A kind of All fiber communication high-power microwave source TT&C system | |
| CN211086429U (en) | All-dielectric optical fiber output type transient current measuring device | |
| CN108444525B (en) | Wireless sensing measurement system for high-voltage transmission network equipment | |
| JPH02297976A (en) | Solar battery module | |
| CN215865585U (en) | High-speed shaft torque detection system and wind driven generator | |
| CN209624654U (en) | One or two fusion panel switches secondary device port measuring devices and shield shell | |
| CN114248644B (en) | Intelligent interface device of charging pile, mounting method of intelligent interface device and charging pile | |
| CN112591120B (en) | Aviation photoelectric pod | |
| CN216526080U (en) | Anti-interference detection device for high-speed carrier communication equipment of High Performance Liquid Chromatography (HPLC) | |
| CN114137321B (en) | Electromagnetic pulse electric field test system | |
| CN113418859B (en) | Two-dimensional sample switching system | |
| CN217370972U (en) | Signal processing circuit and laser processing equipment | |
| Choroba et al. | The tesla RF system | |
| Li et al. | Research on Multi-level Electromagnetic Leakage Protection Strategy of Industrial Control System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |