CN113341409A - Phased array radar detection system - Google Patents
Phased array radar detection system Download PDFInfo
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- CN113341409A CN113341409A CN202110615095.8A CN202110615095A CN113341409A CN 113341409 A CN113341409 A CN 113341409A CN 202110615095 A CN202110615095 A CN 202110615095A CN 113341409 A CN113341409 A CN 113341409A
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- waveguide
- detection system
- phased array
- radar detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention discloses a phased array radar detection system, which can avoid the use of a rotating device and ensure the working stability of a radar by arranging a plurality of phased array antennas; since the dielectric element is self-supporting, it can be locked in place in the respective waveguide even in the event of vibration or shock of the antenna in operation; a dielectric element partially filling each individual waveguide and including features for providing impedance matching, enhancing the operating frequency range, facilitating signal propagation between the waveguide horn and the individual waveguide; due to the arrangement of the first slotted hole and the third slotted hole, the dielectric element is more easily compressed and slightly deformed in the process of inserting and mounting, and the inserting and mounting are facilitated; the second slot and the fourth slot are arranged to reduce the weight of the dielectric element and improve the heat dissipation performance.
Description
Technical Field
The invention relates to the technical field of radar equipment, in particular to a phased array radar detection system.
Background
Radars widely applied in the market at present detect the distance of a target by transmitting and receiving electromagnetic waves to a certain direction, and complete 360-degree scanning and orientation determination by rotating an antenna. On one hand, the arrangement of the rotating device can cause the radar equipment to have large volume, large occupied space and heavy weight; because the rotation precision of the rotating device is limited, and the problems of water seepage, ash falling and the like are easy to occur, the later maintenance and repair needs to be disassembled, and the operation is very complicated and fussy; on the other hand, the number of the antennas is unique, once a fault problem occurs, the whole radar cannot detect, the coverage area of the antenna rotating process is limited, and incomplete and inaccurate detection can be caused.
Disclosure of Invention
Aiming at the defects in the technology, the invention provides a phased array radar detection system.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a phased array radar detection system, comprising:
an antenna array and an external control unit, the antenna array being operatively connected to the external control unit by a receive channel and a transmit channel, the receive channel and the transmit channel being respectively arranged to allow receiving and processing of a control signal received by the antenna array from outside; the antenna array is connected with the external control unit through a power supply line so as to obtain power supply;
the antenna array comprises an antenna element and a support, wherein the antenna element is suitable for receiving electromagnetic radio-frequency signals and converting the electromagnetic radio-frequency signals into corresponding analog electric signals; the bracket comprises a supporting box, wherein two common supporting bodies symmetrically arranged extend out of the upper part of one end of the supporting box, and the antenna element is fixed on the supporting box and positioned between the two common supporting bodies;
the antenna element comprises a plurality of antennas which are arranged in an array, the plurality of antennas are respectively connected with a plurality of low noise amplifiers, the plurality of low noise amplifiers are respectively connected to a plurality of frequency conversion modules, the plurality of frequency conversion modules are respectively connected with a plurality of analog-to-digital conversion modules, and the plurality of analog-to-digital conversion modules are connected to a common digital processing module through respective first electric connection elements.
Preferably, wherein the receiving channel and the transmitting channel are two channels of the same bidirectional transmission medium or different transmission media with separate channels.
Preferably, the antenna array is arranged, each antenna comprises an antenna unit, the antenna unit comprises a polarizer, a waveguide horn and a waveguide which are sequentially connected from bottom to top, the polarizer is connected with the waveguide horn, a plurality of dielectric elements are inserted into the waveguide, and the dielectric elements can at least partially extend into the waveguide horn.
Preferably, the waveguide includes a square frame body, and the square frame body is equally divided into n parts by fixing in the square frame body2A plurality of individual regions of insulating sheet material, each of said regions having a dielectric element inserted therein; the square frame body with all set up the jack of the dielectric element joint of being convenient for on the isolation plate.
Preferably, the top four corners of the waveguide are provided with L-shaped bumps, and the top surfaces of the L-shaped bumps are not lower than the top surface of the dielectric element.
Preferably, the waveguide horn is a stepped waveguide horn having a plurality of waveguide sections of increasing cross-sectional width.
Preferably, the polarizer has an outer wall with a square cross section, reinforcing ribs are arranged at four corners of the inner part of the outer wall, and a diaphragm is arranged in the polarizer and divides the polarizer into a first polarization chamber and a second polarization chamber.
Preferably, the dielectric element comprises a first circular member, a second circular member and a dielectric member which are sequentially arranged from top to bottom, the first circular member comprises a first circular main body, a plurality of first holders are arranged on the outer circumferential surface of the first circular main body, a plurality of protruding strips are arranged at the lower part of the first circular main body, the protruding strips are positioned on a connecting line of the first holders and the circle center of the first circular main body, a first slot hole is formed between each protruding strip and the first holder, and a second slot hole is formed between adjacent protruding strips; the second circular component comprises a second circular main body, a plurality of second holding bodies are arranged on the outer circumferential surface of the second circular main body, a plurality of third slotted holes and fourth slotted holes are arranged at the lower part of the second circular main body, and the axial direction projections of the first holding bodies and the second holding bodies, the first slotted holes and the third slotted holes, and the second slotted holes and the fourth slotted holes are completely overlapped; the first circular component and the second circular component are connected through a connector and keep a certain distance, the lower part of the second circular component is provided with a connecting insert ring, and the dielectric component is inserted in the connecting insert ring.
Preferably, the first retaining body is supported at an upper edge of the waveguide, and the second retaining body is in plug-fit engagement with the receptacle.
Preferably, the dielectric member comprises a plurality of radially extending side plates, the side plates being triangular with a first tapered portion extending into the waveguide horn and a second tapered portion extending into the second circular member, the convergence of the first and second tapered portions forming a support block; the waveguide horn and the waveguide are combined to form a support platform, and the support block is supported at the support platform.
Compared with the prior art, the invention has the beneficial effects that: according to the phased array radar detection system provided by the invention, the plurality of phased array antennas are arranged, so that the use of a rotating device can be avoided, and the working stability of the radar is ensured; since the dielectric element is self-supporting, it can be locked in place in the respective waveguide even in the event of vibration or shock of the antenna in operation; a dielectric element partially filling each individual waveguide and including features for providing impedance matching, enhancing the operating frequency range, facilitating signal propagation between the waveguide horn and the individual waveguide; due to the arrangement of the first slotted hole and the third slotted hole, the dielectric element is more easily compressed and slightly deformed in the process of inserting and mounting, and the inserting and mounting are facilitated; the second slot and the fourth slot are arranged to reduce the weight of the dielectric element and improve the heat dissipation performance.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection of the components of the present invention;
FIG. 3 is a schematic diagram of an antenna according to the present invention;
FIG. 4 is a cross-sectional view of a waveguide of the present invention;
FIG. 5 is a cross-sectional view of a polarizer and waveguide horn of the present invention;
fig. 6 is a schematic structural diagram of the antenna with the dielectric element removed according to the present invention.
FIGS. 7-8 are schematic structural views of dielectric elements according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1 to 8, the present invention provides a phased array radar detection system, including:
an antenna array 1 and an external control unit 40, said antenna array 1 being operatively connected to the external control unit 40 by a receive channel L2 and a transmit channel L3, the receive channel L2 and the transmit channel L3 being respectively arranged to allow receiving and processing of control signals received by said antenna array 1 from outside; the antenna array 1 is connected to the external control unit 40 via supply lines L1 for power supply.
Here, the receiving channel L2 and the transmitting channel L3 are two channels of the same bidirectional transmission medium or different transmission media having independent channels.
Further, the reception channel L2 and the transmission channel L3 may also be wireless channels, for example, two channels different from each other in carrier frequency or two channels on the same carrier.
The antenna array 1 comprises an antenna element 2 'adapted to receive electromagnetic radio frequency signals and convert them into corresponding analog electrical signals, and a support 2, the antenna element 2' being supported and fixed by the support 2.
The support 2 comprises a support box 2 ", two common support bodies 12 symmetrically arranged extend from an upper portion of one end of the support box 2", and the antenna element 2' is fixed on the support box 2 "and located between the two common support bodies 12.
The support box 2 "and the common support body 12 are made of an electrically conductive metal material, such as aluminum or an aluminum alloy. The interior of the support box 2 "has one or more seats for housing electronic circuitry and the antenna array 1.
The antenna element 2' includes a plurality of antennas 10 arranged in an array, the plurality of antennas 10 are respectively connected to a plurality of low noise amplifiers 20, the plurality of low noise amplifiers 20 are respectively connected to a plurality of frequency conversion modules 21, the plurality of frequency conversion modules 21 are respectively connected to a plurality of analog-to-digital conversion modules 22, and the plurality of analog-to-digital conversion modules 22 are connected to a common digital processing module 31 through respective first electrical connection elements 29.
The antenna element 2' further comprises a first transmission interface 23 for transmitting digital samples generated from the output of the analog-to-digital conversion module 22 or digital data obtained from the analog-to-digital conversion module 22 to an external control unit 40.
The antenna element 2' further comprises a first receiving interface 24, and the antenna 10 receives and processes control signals from the external control unit 40 via the first receiving interface 24.
The first transmitting interface 23, the first receiving interface 24 are radio interfaces or optical fiber interfaces.
The frequency conversion modules 21 are adapted to convert respective analog electrical signals to respective intermediate frequency or baseband analog electrical signals, each frequency conversion module 21 having a first input operatively coupled to a respective antenna 10 and a second input adapted to receive a frequency reference signal.
The analog-to-digital conversion module 22 comprises an analog-to-digital converter.
The antenna element 2 'also comprises a power supply module 35 operatively connected to the power supply line L1, the power supply module 35 being responsible for supplying power to the antenna element 2'.
The antenna element 2' further comprises a synthesis unit 25, which synthesis unit 25 is adapted to process the control signal received via the first receiving interface 24, the frequency reference signal for the frequency conversion module 21, the synchronization signal and the control signal for the analog-to-digital conversion module 22.
The antenna element 2' comprises a power divider 26 adapted to provide a frequency reference signal to a plurality of frequency conversion modules 21, the power divider 26 being connected to the frequency conversion modules 21 by connection wires 27.
The antenna element 2' further comprises a second electrical connection element 28 adapted to provide synchronization signals and control signals to the plurality of analog-to-digital conversion modules 22.
The antenna element 2' comprises a full digital beamforming processing module 30 connected to a common digital processing module 31 via a third electrical connection element 32 adapted to receive digital samples output from the common digital processing module 31.
The antenna 10 is a plurality of and array arrangement, and each antenna 10 all includes an antenna unit 4, and antenna unit 4 includes polarizer 42, waveguide loudspeaker 421 and waveguide 41 that connect gradually the setting from bottom to top, and polarizer 42 is connected with waveguide loudspeaker 421, and the interpolation of waveguide 41 has a plurality of dielectric element 5.
The dielectric elements 5 within the waveguide 41 are in a 2 x 2 array, but other arrangements, for example: 3 × 3, 4 × 4, and the like are also possible.
The waveguide 41 includes a square frame body410, the square frame 410 is fixed with n equal parts of the square frame 4102-insulating plates of individual zones, in each of which a dielectric element 5 is inserted; the square frame 410 and the isolation plate are both provided with jacks 412 for clamping the dielectric element 5.
The waveguide 41 is provided with L-shaped bumps 413 at four corners of the top thereof, and the top surfaces of the L-shaped bumps 413 are not lower than the top surface of the dielectric element 5.
The dielectric element 5 is self-supporting and can be locked in place in the respective waveguide 41 even in the event of vibration or shock of the antenna 10 during operation. The dielectric element 5 partially fills each individual waveguide 41 and includes features for providing impedance matching, enhancing the operating frequency range, and facilitating signal propagation between the waveguide horn 421 and the individual waveguide 41.
The waveguide horn 421 is a stepped waveguide horn having a plurality of waveguide portions with increasing cross-sectional widths.
The polarizer 42 has an outer wall 420 with a square cross section, reinforcing ribs 43 are provided at four corners of the inside of the outer wall 420, and a diaphragm 431 is provided inside the polarizer 42 to divide the polarizer into a first polarization chamber and a second polarization chamber.
By the arrangement of the membrane, the polarizer 42 can convert the signal between the dual polarization state and the two signal components in the first and second polarization chambers corresponding to the orthogonal base polarization. From a receive perspective, the polarizer receives the signal, captures energy corresponding to a first fundamental polarization of the signal and transfers it substantially into the first polarization chamber, and captures energy corresponding to a second fundamental polarization of the signal and transfers it substantially into the second polarization chamber. From an emission perspective, excitation energy of the first and second polarization chambers causes polarization of energy emitted from the common port.
The dielectric element 5 comprises a first circular member 51, a second circular member 52 and a dielectric member 53 which are sequentially arranged from top to bottom, wherein the first circular member 51 comprises a first circular main body, a plurality of first holders 511 are arranged on the outer circumferential surface of the first circular main body, a plurality of protruding strips 514 are arranged on the lower part of the first circular main body, the protruding strips 514 are positioned on the connecting line of the first holders 511 and the circle center of the first circular main body, a first slot 513 is arranged between each protruding strip 514 and the first holder 511, and a second slot 512 is arranged between adjacent protruding strips 514; the second circular member 52 includes a second circular main body, a plurality of second holding bodies 521 are arranged on the outer circumferential surface of the second circular main body, a plurality of third slots 523 and fourth slots 522 are arranged on the lower portion of the second circular main body, and axial direction projections of the first holding bodies 511 and the second holding bodies 521, the first slots 513 and the third slots 523, and the second slots 512 and the fourth slots 522 completely overlap; the first circular member 51 and the second circular member 52 are connected by a connector and keep a certain distance, a connection insert ring 520 is installed at the lower part of the second circular member 52, and the dielectric member 53 is inserted into the connection insert ring 520.
Due to the arrangement of the first slot 513 and the third slot 523, the dielectric element is more easily compressed and slightly deformed during the insertion installation process, which is beneficial to the insertion. The second slot 512 and the fourth slot 522 are disposed to reduce the weight of the dielectric element and improve the heat dissipation performance.
The first holder 511 is supported at the upper edge of the waveguide 41, and the second holder 521 is fitted into the insertion hole 412.
The dielectric member 53 may extend at least partially into the waveguide horn 421, and by extending into the waveguide horn, the dielectric element may facilitate energy transfer between the waveguide horn and the respective waveguide. The dielectric element may act as a field concentrator within the waveguide horn, thereby facilitating a change in propagation mode between the waveguide horn and the plurality of individual waveguides.
The dielectric member 53 includes a plurality of radially extending side plates, which are triangular in shape, having a first tapered portion 532 extending into the waveguide horn 421 and a second tapered portion 531 extending to the second circular member 52, and a supporting block 530 is formed at a convergence of the first tapered portion 532 and the second tapered portion 531.
The waveguide horn 421 forms a mount 411 where it is combined with the waveguide 41, and the support block 530 is supported at the mount 411.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A phased array radar detection system, comprising:
an antenna array and an external control unit, the antenna array being operatively connected to the external control unit by a receive channel and a transmit channel, the receive channel and the transmit channel being respectively arranged to allow receiving and processing of a control signal received by the antenna array from outside; the antenna array is connected with the external control unit through a power supply line so as to obtain power supply;
the antenna array comprises an antenna element and a support, wherein the antenna element is suitable for receiving electromagnetic radio-frequency signals and converting the electromagnetic radio-frequency signals into corresponding analog electric signals; the bracket comprises a supporting box, wherein two common supporting bodies symmetrically arranged extend out of the upper part of one end of the supporting box, and the antenna element is fixed on the supporting box and positioned between the two common supporting bodies;
the antenna element comprises a plurality of antennas which are arranged in an array, the plurality of antennas are respectively connected with a plurality of low noise amplifiers, the plurality of low noise amplifiers are respectively connected to a plurality of frequency conversion modules, the plurality of frequency conversion modules are respectively connected with a plurality of analog-to-digital conversion modules, and the plurality of analog-to-digital conversion modules are connected to a common digital processing module through respective first electric connection elements.
2. The phased array radar detection system of claim 1 wherein the receive channel and the transmit channel are two channels of the same bidirectional transmission medium or different transmission media having separate channels.
3. The phased array radar detection system of claim 1 wherein the array of antennas is arranged such that each antenna comprises an antenna element comprising a polarizer, a waveguide horn and a waveguide arranged in series from bottom to top, the polarizer being connected to the waveguide horn, and the waveguide having a plurality of dielectric elements inserted therein, the dielectric elements extending at least partially into the waveguide horn.
4. The phased array radar detection system of claim 3 wherein the waveguide comprises a square frame having an interior secured to divide the square frame equally into n2A plurality of individual regions of insulating sheet material, each of said regions having a dielectric element inserted therein; the square frame body with all set up the jack of the dielectric element joint of being convenient for on the isolation plate.
5. The phased array radar detection system as claimed in claim 4 wherein the top four corners of the waveguide are provided with L-shaped bumps, the top surface of the L-shaped bumps being no lower than the top surface of the dielectric element.
6. The phased array radar detection system of claim 4 wherein the waveguide horn is a stepped waveguide horn having a plurality of waveguide sections of increasing cross-sectional width.
7. The phased array radar detection system as claimed in claim 3 wherein the polarizer has an outer wall of square cross section with reinforcing ribs disposed at the inner four corners of the outer wall, and wherein the polarizer has a diaphragm disposed therein, the diaphragm separating the polarizer into a first polarization chamber and a second polarization chamber.
8. The phased array radar detection system as claimed in claim 4, wherein the dielectric element comprises a first circular member, a second circular member and a dielectric member arranged from top to bottom, the first circular member comprises a first circular main body, a plurality of first retainers are arranged on the outer circumferential surface of the first circular main body, a plurality of protruding strips are arranged on the lower portion of the first circular main body, the protruding strips are located on the connecting line of the first retainers and the center of the first circular main body, first slots are arranged between the protruding strips and the first retainers, and second slots are arranged between adjacent protruding strips; the second circular component comprises a second circular main body, a plurality of second holding bodies are arranged on the outer circumferential surface of the second circular main body, a plurality of third slotted holes and fourth slotted holes are arranged at the lower part of the second circular main body, and the axial direction projections of the first holding bodies and the second holding bodies, the first slotted holes and the third slotted holes, and the second slotted holes and the fourth slotted holes are completely overlapped; the first circular component and the second circular component are connected through a connector and keep a certain distance, the lower part of the second circular component is provided with a connecting insert ring, and the dielectric component is inserted in the connecting insert ring.
9. The phased array radar detection system of claim 8 wherein the first retainer is supported at an upper edge of the waveguide and the second retainer is in plug-fit engagement with the receptacle.
10. The phased array radar detection system of claim 9 wherein the dielectric member includes a plurality of radially extending side plates, the side plates being triangular with a first tapered portion extending into the waveguide horn and a second tapered portion extending into the second circular member, the convergence of the first and second tapered portions forming a support block; the waveguide horn and the waveguide are combined to form a support platform, and the support block is supported at the support platform.
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| CN202110615095.8A CN113341409A (en) | 2021-06-02 | 2021-06-02 | Phased array radar detection system |
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| CN202110615095.8A CN113341409A (en) | 2021-06-02 | 2021-06-02 | Phased array radar detection system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980048A (en) * | 2010-09-29 | 2011-02-23 | 中国科学院国家天文台 | Antenna array forming technology-based ground-based radar system for space debris |
| CN102866387A (en) * | 2012-10-16 | 2013-01-09 | 清华大学 | Millimeter wave frequency modulated continuous wave (FMCW) two-unit phased array distance and velocity measurement monolithic radar transceiver |
| CN103401072A (en) * | 2013-07-25 | 2013-11-20 | 上海交通大学 | Periodic amplitude control-based phased-array antenna system and wave beam control method |
| CN104428949A (en) * | 2012-07-03 | 2015-03-18 | 利萨·德雷克塞迈尔有限责任公司 | Antenna system for broadband satellite communication in ghz frequency range, comprising dielectrically filled horn antennas |
| WO2016128909A1 (en) * | 2015-02-11 | 2016-08-18 | Fincantieri Spa | Array for receiving and processing electromagnetic radio-frequency signals |
| US20170069972A1 (en) * | 2015-09-09 | 2017-03-09 | Viasat, Inc. | Partially dielectric loaded antenna elements for dual-polarized antenna |
| RU2670980C1 (en) * | 2017-12-28 | 2018-10-26 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) | Multifunctional on-board radar complex |
-
2021
- 2021-06-02 CN CN202110615095.8A patent/CN113341409A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980048A (en) * | 2010-09-29 | 2011-02-23 | 中国科学院国家天文台 | Antenna array forming technology-based ground-based radar system for space debris |
| CN104428949A (en) * | 2012-07-03 | 2015-03-18 | 利萨·德雷克塞迈尔有限责任公司 | Antenna system for broadband satellite communication in ghz frequency range, comprising dielectrically filled horn antennas |
| CN102866387A (en) * | 2012-10-16 | 2013-01-09 | 清华大学 | Millimeter wave frequency modulated continuous wave (FMCW) two-unit phased array distance and velocity measurement monolithic radar transceiver |
| CN103401072A (en) * | 2013-07-25 | 2013-11-20 | 上海交通大学 | Periodic amplitude control-based phased-array antenna system and wave beam control method |
| WO2016128909A1 (en) * | 2015-02-11 | 2016-08-18 | Fincantieri Spa | Array for receiving and processing electromagnetic radio-frequency signals |
| US20170069972A1 (en) * | 2015-09-09 | 2017-03-09 | Viasat, Inc. | Partially dielectric loaded antenna elements for dual-polarized antenna |
| RU2670980C1 (en) * | 2017-12-28 | 2018-10-26 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) | Multifunctional on-board radar complex |
Non-Patent Citations (1)
| Title |
|---|
| 钟顺时: "《微带天线理论与应用》", 30 June 1991, 西安电子科技大学出版社 * |
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