CN116470285A - Near-field focusing phased array antenna for generating broadband strong pulse modulation radiation field - Google Patents
Near-field focusing phased array antenna for generating broadband strong pulse modulation radiation field Download PDFInfo
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- CN116470285A CN116470285A CN202310563136.2A CN202310563136A CN116470285A CN 116470285 A CN116470285 A CN 116470285A CN 202310563136 A CN202310563136 A CN 202310563136A CN 116470285 A CN116470285 A CN 116470285A
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- 238000000034 method Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/002—Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention belongs to the technical field of antenna and electromagnetic compatibility, and particularly relates to a near-field focusing phased array antenna for generating a broadband strong pulse modulation radiation field. The system comprises a broadband antenna unit, a transmitting assembly, a transmitting power division network, a driving amplifier, a pulse modulation signal generating module, a receiving synthesis network, a self-checking receiver, an exciter, a wave control module, a power module, a cold plate and an array surface structure, wherein the pulse modulation signal generating module, the driving amplifier and the transmitting power division network are sequentially connected, the transmitting power division network is respectively connected with a plurality of transmitting assemblies, and the transmitting assemblies are connected with a plurality of groups of broadband antenna units; the return ends of the plurality of transmitting assemblies are connected with a receiving synthesis network, a self-checking receiver and a wave control module which are connected in sequence; the wave control module is respectively connected with the pulse modulation signal generation module, the self-checking receiver, the exciter and the driving amplifier, and the exciter is connected with the plurality of transmitting components. The invention can generate thousands of pulse modulation radiation fields with the duty ratio of more than 10% at the distance of 3m, and can realize near field focusing and automatic beam electric scanning at the distance of 3 m.
Description
Technical field:
the invention belongs to the technical field of antenna and electromagnetic compatibility, and particularly relates to a near-field focusing phased array antenna for generating a broadband strong pulse modulation radiation field.
The background technology is as follows:
the strong pulse modulation radiation field formed by the high-power radiation sources such as the carrier-borne radar, the airborne radar, the communication transmitter and the like forms serious electromagnetic threat to the weapon equipment, and the polytype equipment improves the electromagnetic radiation resistance to the war technical index height to check the equipment. The main basis of the evaluation of the electromagnetic radiation resistance performance of the equipment is the external radio frequency electromagnetic environment requirement specified by GJB1389A-2005, and according to the standard specification, a strong pulse modulation radiation field needs to be generated in a very wide frequency band. In particular, the S-band needs to generate a pulse modulation radiation field, the peak value of the electric field can reach thousands of to tens of thousands of V/m, and the duty ratio is more than 10 percent.
Up to now, there is no experimental apparatus in China that can meet both the peak value and duty cycle requirements of the electric field. The existing radiation field test device in China mostly adopts a mode of signal source, single power amplifier and antenna, however, the single microwave frequency band pulse modulation power amplifier has limited output capability, and is difficult to meet the electric field generation requirements of thousands of tens of thousands of V/m; the strong pulse radiation field is generated by adopting a magnetron transmitter mode, and the field intensity can meet the requirement, but the duty ratio can only reach 0.12 percent and still cannot meet the requirement of standard radiation field generation.
Through research, a broadband strong pulse modulation radiation field can be generated by applying a near-field focusing phased array antenna. The current near-field focusing phased array antenna is mostly a microstrip antenna array or a slotted antenna array, and mainly comprises an antenna unit, a signal generating module, a power amplifying module, a power dividing network, a wave control module and a power supply assembly; the antenna array of the type is narrow in bandwidth, mainly works in continuous wave and low power modes, lacks of heat dissipation and electromagnetic protection design, and is widely applied to the fields of medical treatment, security protection, wireless energy transmission and the like. Therefore, the current near field focusing phased array antenna has narrow bandwidth, low power capacity, inadaptability to a pulse modulation mode, poor heat dissipation and weak electromagnetic protection capability, and is difficult to be applied to the application scene of generating thousands of pulse modulation radiation fields with the duty ratio of more than 10% on a 3m working plane.
The invention comprises the following steps:
the invention aims to solve the problems of narrow bandwidth, low power capacity, inadaptability to a pulse modulation mode, poor heat dissipation and weak electromagnetic protection capability in the prior art, and provides a near-field focusing phased array antenna for generating a broadband strong pulse modulation radiation field.
In order to achieve the purpose of the invention, the technical scheme provided by the invention is as follows: the near field focusing phased array antenna for generating the broadband strong pulse modulation radiation field comprises a broadband antenna unit, a transmitting assembly, a transmitting power division network, a driving amplifier, a pulse modulation signal generating module, a receiving synthesis network, a self-checking receiver, an exciter, a wave control module, a power supply module, a cold plate and an array surface structure, wherein the pulse modulation signal generating module, the driving amplifier and the transmitting power division network are sequentially connected, the transmitting power division network is respectively connected with a plurality of transmitting assemblies, and the transmitting assemblies are connected with a plurality of groups of broadband antenna units to serve as signal transmitting channels; the return ends of the plurality of transmitting assemblies are connected with a receiving synthesis network, a self-checking receiver and a wave control module which are sequentially connected, and are used as self-checking receiving channels; the wave control module is respectively connected with the pulse modulation signal generation module, the self-checking receiver, the exciter and the driving amplifier, and the exciter is connected with the plurality of emission components and used as a control channel; the power module is respectively connected with the pulse modulation signal generation module, the driving amplifier, the self-checking receiver, the exciter and the plurality of transmitting components and is used as a power supply channel.
Further, an isolator, a coupler and a high-power load are arranged after the final-stage power amplifier in the transmitting assembly.
Further, the array surface structure comprises an array base and an array surface shell, wherein a plurality of groups of broadband antenna units form an antenna array, the antenna array is fixed on the array base, the array base is connected with the array surface shell through a peripheral baffle plate to form a concave-shaped complete shielding body, an antenna housing is arranged at a concave-shaped opening, the periphery of the antenna housing is a connecting area, and the middle of the antenna housing is a wave-transmitting area.
Compared with the prior art, the invention has the advantages that:
1. the broadband antenna unit has the characteristics of broadband, high gain and high power capacity, and design parameters are as follows: standing wave ratio in the working frequency band is less than 1.5, typical frequency point gain is more than 6.5dBi, and power capacity is not lower than 60W; the pulse modulation signal generation module 5 can generate a wideband and large duty cycle pulse modulation signal required by a system; the driving amplifier 4 and the transmitting assembly 2 can amplify signals, and rated output power of the single transmitting assembly 2 is not lower than 60W; the standing wave ratio in the band of the power dividing unit of the transmitting power dividing network 3 is less than 2, and the insertion loss is less than 3.3dB. The above components are the basis for the design of phased array antennas with wide frequency band, high power capacity and large duty cycle.
2. The phased array antenna can generate thousands to tens of thousands of V/m pulse modulation radiation fields with duty ratio more than 10% at a distance of 3m, and can realize near field focusing and automatic beam electric scanning at the distance of 3 m. The 3m distance belongs to the near field for the whole phased array, but belongs to the far field for the independent antenna units, so the invention designs the focusing phased array by utilizing the thought of far field in-phase superposition of each antenna unit. By using the method of the third invention, the phase of each transmitting component is controlled by software, so that the radiation field generated by each antenna unit is realized by the same phase superposition of the near-field focusing field point. The number of antenna elements and transmitting elements of the phased array varies according to different radiation field strength requirements, the stronger the field strength the greater the number of elements and transmitting elements required.
3. The tested system of the phased array antenna is mostly an electric large-size system, so thousands of V/m reflection fields are faced, and the following measures are adopted for electromagnetic protection: a) The isolator, the coupler and the high-power load are configured after the final-stage power amplification in the transmitting assembly 2 so as to isolate and absorb electromagnetic energy coupled into the transmitting assembly 2 from the antenna to protect the final-stage power amplification of the transmitting assembly 2; b) The array surface structure is a shielding body, and the array surface base is connected with the array surface shell through the metal baffle plate, so that a complete shielding body is effectively formed; the reflection field is blocked by a complete shielding body formed by the array surface shell, the baffle plate and the array surface base, and the whole shielding body has shielding effectiveness not lower than 20 dB. The structure does not affect the external radiation of the antenna through the wave-transparent region, and the energy coupled into the transmitting assembly 2 through the antenna is absorbed by the isolator, the coupler and the high-power load.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of an array plane shielding design;
in the figure: the antenna comprises a 1-broadband antenna unit, a 2-transmitting assembly, a 3-transmitting power division network, a 4-driving amplifier, a 5-pulse modulation signal generating module, a 6-receiving synthesis network, a 7-self-checking receiver, an 8-exciter, a 9-wave control module, a 10-power module, a 11-cold plate, a 12-array surface structure, a 13-array base, a 14-array surface shell, a 15-baffle plate, a 16-connecting area, a 17-wave transmission area, 18-screws and a 19-antenna array.
The specific embodiment is as follows:
the present invention will be described in detail with reference to the following embodiments.
A near field focusing phased array antenna for generating broadband strong pulse modulation radiation field comprises a broadband antenna unit 1, a transmitting assembly 2, a transmitting power division network 3, a driving amplifier 4, a pulse modulation signal generating module 5, a receiving synthesis network 6, a self-checking receiver 7, an exciter 8, a wave control module 9, a power supply module 10, a cold plate 11 and an array surface structure 12. The pulse modulation signal generation module 5, the driving amplifier 4 and the transmitting power division network 3 are connected in sequence, the transmitting power division network 3 is respectively connected with a plurality of transmitting assemblies 2, and the transmitting assemblies 2 are connected with a plurality of groups of broadband antenna units 1 to serve as signal transmitting channels; the return ends of the plurality of transmitting assemblies 2 are connected with a receiving synthesis network 6, a self-checking receiver 7 and a wave control module 9 which are sequentially connected, and are used as self-checking receiving channels; the wave control module 9 is respectively connected with the pulse modulation signal generation module 5, the self-checking receiver 7, the exciter 8 and the driving amplifier 4, and the exciter 8 is connected with the plurality of emission components 2 and serves as a control channel; the power supply module 10 is respectively connected with the pulse modulation signal generation module 5, the driving amplifier 4, the self-checking receiver 7, the exciter 8 and the plurality of transmitting components 2 to serve as a power supply channel.
The isolator, the coupler and the high-power load are configured after the final-stage power amplification in the transmitting assembly 2 so as to isolate and absorb electromagnetic energy which is coupled into the transmitting assembly 2 from the antenna, so that the final-stage power amplification of the transmitting assembly 2 is protected;
the array surface structure 12 comprises an array base and an array surface shell, wherein a plurality of groups of broadband antenna units 1 form an antenna array, the antenna array is fixed on the array base, the array base is connected with the array surface shell through a peripheral metal baffle plate to form a 'concave' type complete shielding body, an antenna housing is arranged at a 'concave' opening position and is connected with the array surface shell through bolts, the periphery of the antenna housing is a connecting area, and the middle of the antenna housing is a wave-transmitting area. Electromagnetic waves generated by the antenna array can radiate outwards through the area, and the reflected field is shielded by the 'concave' shielding body, so that the shielding effectiveness is 20 dB. The reflected field is received only by the antenna element.
The working principle of the phased array antenna of the invention is as follows: the external main control computer transmits pulse modulation signal generation, near-field focusing emission and beam scanning instructions to the wave control module 9 on the antenna array surface; after resolving the signal generation instruction, the wave control module 9 controls the pulse modulation signal generation module 5 to generate a required wideband pulse modulation radio frequency signal with a large duty ratio; the power is amplified by a driving amplifier 4 and enters a transmitting power dividing network 3, and the power is equally divided and enters a corresponding transmitting assembly 2; meanwhile, the wave control module 9 breaks up near field focusing emission and wave beam scanning instructions, the phase distribution and power of each emission component 2 are controlled through the exciter 8, the amplified and phase controlled radio frequency signals are fed into the broadband antenna unit 1 and emitted to the space, and space power synthesis is carried out, so that the radiation electric field of a specified distance, angle, signal type and irradiation area is realized. In order to realize the self-checking of the phased array antenna, each transmitting component 2 returns a path of self-checking signal, and the self-checking signal is synthesized into a path of signal after passing through a receiving and synthesizing network 6 and returns to a self-checking receiver 7; the self-checking receiver 7 converts the synthesized self-checking signal into an intermediate frequency, carries out IQ demodulation to form an intermediate frequency signal containing amplitude and phase information, and sends the intermediate frequency signal to the wave control module 9; the wave control module 9 digitizes the signal and uploads the signal to an external main control computer for a tester to check whether the radio frequency output signal, the radio frequency link function, the phase shift and power output of the transmitting assembly and the wave control parameters of the antenna are correct. The phased array incorporates a plurality of cold plates 11 for cooling of the emitter assembly 2 and the power module 10. The array structure 12 is used to mount all equipment and components of the antenna array.
The radiation fields generated by the plurality of groups of broadband antenna units 1 are overlapped in phase at the near-field focusing field point, and the specific method for overlapping in phase is as follows: a) Determining a near-field focusing field point P (x ', y'), and calculating the distance r from the array surface phase center O to the field point; b) Calculate the distance r of the antenna element (i, j) (i=1, 2,) M, j=1, 2, & N) to the field point i,j Wherein M and N are the total number of rows and columns of antenna elements included in the phased array; c) Calculating delta i,j ＝r i,j -r (i=1, 2,) M, j=1, 2, N) controlling the transmit path phases of the corresponding transmit assemblies of the antenna elements (i, j), respectively, for Δ i,j And performing phase compensation.
The invention is described in detail below by way of a specific example:
a near field focusing phased array antenna for generating a pulse modulation radiation field with S wave band of 3 GHz-3.5 GHz, 3m long distance field intensity 3700V/m and duty cycle of 10% -50%. The system comprises an S-band frequency synthesizer 1, a driving amplifier 2, a 1-64 transmitting power division unit 3, 64 transmitting assemblies 4 and 64-1 receiving synthesis network 6, a self-checking receiver 7, 12 power modules 8, a wave control module 9, an exciter 10 and 256 electromagnetic dipole antennas 5 which are arranged on an array surface structure 12, wherein the cold plate 11 comprises 8 transmitting assembly cold plates and 3 power cold plates. And also comprises sensors of temperature, gesture and the like.
(1) S-band frequency synthesizer: the method is used for generating a pulse modulation signal with the S wave band of 3 GHz-3.5 GHz and the duty ratio of 10% -50%, and the signal amplitude, the pulse repetition frequency and the duty ratio can be regulated in a program-controlled manner; providing a local oscillation signal of 3.24 GHz-3.74 GHz for the self-checking receiver; providing 100MHz continuous wave clock signal for the wave control module 9 to collect and synchronize; the system timing signal can be output.
(2) A drive amplifier: the pulse modulation signal output by the S-band frequency synthesizer can be amplified, the gain is more than or equal to 20dB, and the gain can be regulated in a program-controlled manner.
(3) 1-64 power division network: the power divider adopts a 3dB bridge structure, the insertion loss of the single-stage power divider is less than 3.3dB, and the 1-division 64-power division network realizes equal power distribution from the S-band frequency synthesizer to 64 transmitting components;
(4) A transmitting assembly: the total 64 transmitting assemblies can amplify and output the power of the 3 GHz-3.5 GHz or 8 GHz-12 GHz pulse modulation signals; each transmitting component is internally provided with a 1-way 4-way power divider, 1-way input to 4-way output can be realized, and the isolation degree between signals of all ways is more than 30dB; each transmitting component is connected with four antenna units, and the maximum output power of each path of the transmitting component is not lower than 65W; the transmitting component can provide channel self-checking signals, each path of signal is coupled with part of transmitting power, and the signals return to the receiving and synthesizing unit after 4-in-1; each channel final stage of the transmitting assembly is provided with a coupler, and the signal which is reversely coupled into the T assembly has 25dB isolation; the transmitting assembly is communicated with the exciter through a serial port, and amplifies and phase-shifts after receiving the phase-matching code issued by the exciter.
(5) Electromagnetic dipole antenna element: the antenna unit adopts an electromagnetic dipole form, the standing wave ratio in the range of the working frequency of 3 GHz-3.5 GHz is smaller than 2, and the typical frequency point gain is larger than 6.5dBi; vertically polarizing the antenna unit; the maximum caliber size is less than or equal to 45mm;
(6) 64 in 1 receive synthesis unit: the synthesizer adopts a 3dB bridge structure, the single-stage insertion loss is less than 3.3dB, and the 64-in-1 receiving and synthesizing unit realizes the power synthesis from the self-checking signals extracted by 64 transmitting components to the self-checking receiver;
(7) Self-checking receiver: the self-checking radio frequency signal can be converted to 240MHz intermediate frequency, the self-checking radio frequency signal has a limiting function, the local oscillation signal is provided by the S-band frequency synthesizer, and the self-checking radio frequency signal has an intermediate frequency signal output test function.
(8) And a power supply module: the power supply device comprises 11 28V direct current power supply modules and 1 12V direct current power supply module, wherein the 28V power supply modules supply power for electric equipment such as a transmitting assembly; the 12V direct current power supply module supplies power for the control modules such as the wave control module 9 and the exciter.
(9) The wave control module 9: the method comprises the steps of communicating with a main control computer, receiving 256 channel phase shift codes and channel power codes issued by the main control computer, distributing the 256 channel phase shift codes and the channel power codes into 16 data packets, and issuing the 16 data packets to 16 exciters in parallel; the system is communicated with an S-band frequency synthesizer, and the S-band frequency synthesizer is matched to complete the generation and execution of the whole phased array working time sequence signal, and complete the works of system self-checking, channel self-checking, scanning and the like; the method comprises the steps of communicating with a self-checking receiver, receiving an intermediate frequency analog self-checking signal of the self-checking receiver, calculating the amplitude and the phase shift of a transmitting signal, and carrying out compensation correction on the transmitting delay by a main control computer; the system is communicated with the exciter, and the phase shift and power amplification output of the emission are controlled through the exciter, fault information reported by the emission is received, and the fault information is uploaded to the main control computer;
(10) An exciter: the 16-channel phase shift codes and the power codes issued by the wave control module 9 are configured into 4 transmitting assemblies.
(11) And (3) cold plate: including 8 transmission subassembly cold plates and 3 power cold plates, wherein 8 transmission subassemblies are installed to 1 transmission subassembly cold plate both sides, and 4 power modules are installed to 1 power cold plate both sides, have circulation liquid cooling passageway in the cold plate, can carry out the liquid cooling to transmission subassembly and power module and cool down.
(12) Temperature, attitude, etc. sensors: the temperature sensor is used for monitoring the temperature of easy-to-transmit equipment such as a transmitting assembly, a power module and the like, and the gesture sensor is used for monitoring the pitching and azimuth positions of the array surface.
The present invention is not limited to the preferred embodiments, but can be modified in any way according to the technical principles of the present invention, and all such modifications, equivalent variations and modifications are included in the scope of the present invention.
Claims (3)
1. The near field focusing phased array antenna for generating broadband strong pulse modulation radiation field comprises a broadband antenna unit (1), a transmitting assembly (2), a transmitting power division network (3), a driving amplifier (4), a pulse modulation signal generating module (5), a receiving synthesis network (6), a self-checking receiver (7), an exciter (8), a wave control module (9), a power supply module (10), a cold plate (11) and an array structure (12), and is characterized in that: the pulse modulation signal generation module (5), the driving amplifier (4) and the transmitting power division network (3) are sequentially connected, the transmitting power division network (3) is respectively connected with a plurality of transmitting assemblies (2), and the transmitting assemblies (2) are connected with a plurality of groups of broadband antenna units (1) to serve as signal transmitting channels; the return ends of the plurality of transmitting assemblies (2) are connected with a receiving synthesis network (6), a self-checking receiver (7) and a wave control module (9) which are connected in sequence to serve as a self-checking receiving channel; the wave control module (9) is respectively connected with the pulse modulation signal generation module (5), the self-checking receiver (7), the exciter (8) and the driving amplifier (4), and the exciter (8) is connected with the plurality of emission components (2) to serve as a control channel; the power module (10) is respectively connected with the pulse modulation signal generation module (5), the driving amplifier (4), the self-checking receiver (7), the exciter (8) and the plurality of transmitting assemblies (2) to serve as a power supply channel.
2. A near field focused phased array antenna for generating a broadband strongly pulsed radiation field as defined in claim 1, wherein: and an isolator, a coupler and a high-power load are arranged after the final-stage power amplification in the transmitting assembly (2).
3. A near field focused phased array antenna for generating a broadband strongly pulsed radiation field as defined in claim 2, wherein: the array surface structure (12) comprises an array base and an array surface shell, a plurality of groups of broadband antenna units (1) form an antenna array, the antenna array is fixed on the array base, the array base is connected with the array surface shell through a peripheral baffle plate to form a concave-shaped complete shielding body, an antenna housing is arranged at a concave-shaped opening, the periphery of the antenna housing is a connecting area, and a wave-transmitting area is arranged in the middle of the antenna housing.
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| CN105721000A (en) * | 2015-12-28 | 2016-06-29 | 深圳市华讯方舟微电子科技有限公司 | Radio-frequency transmitting module, radio-frequency transmitting component, phased-array antenna and production method thereof |
| CN106654511A (en) * | 2016-11-17 | 2017-05-10 | 西安空间无线电技术研究所 | Small-sized transceiving shared broad-wave-beam coverage antenna |
| CN110808794A (en) * | 2019-11-05 | 2020-02-18 | 中国电子科技集团公司第二十研究所 | Large-scale phased array calibration system based on dual-channel calibration circuit and control method |
| CN113659352A (en) * | 2021-07-28 | 2021-11-16 | 中国电子科技集团公司第十四研究所 | Satellite-borne full-polarization broadband phased array antenna |
| CN114300867A (en) * | 2022-01-21 | 2022-04-08 | 中南大学 | Ka frequency channel phased array antenna |
| CN115566443A (en) * | 2022-09-21 | 2023-01-03 | 中国电子科技集团公司第十四研究所 | High-integration modularized active phased array antenna subarray |
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