CN115513641A - Multichannel, ultra wide band, miniaturization, anti-interference electronic countermeasure equipment - Google Patents
Multichannel, ultra wide band, miniaturization, anti-interference electronic countermeasure equipment Download PDFInfo
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- CN115513641A CN115513641A CN202211466440.7A CN202211466440A CN115513641A CN 115513641 A CN115513641 A CN 115513641A CN 202211466440 A CN202211466440 A CN 202211466440A CN 115513641 A CN115513641 A CN 115513641A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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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
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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Abstract
The invention discloses multichannel, ultra wide band, miniaturization and anti-interference electronic countermeasure equipment which comprises a shell, a first Vivaldi antenna, a second Vivaldi antenna and a third Vivaldi antenna, wherein the shell comprises a base plate, the first Vivaldi antenna, the second Vivaldi antenna and the third Vivaldi antenna are all arranged on the base plate, the first Vivaldi antenna and the second Vivaldi antenna are arranged in a first preset included angle, the third Vivaldi antenna is positioned at any end of the length direction of the first Vivaldi antenna, and a first groove extending along the length direction of the first Vivaldi antenna is formed in a radiation patch of the first Vivaldi antenna.
Description
Technical Field
The invention relates to the technical field of informatization communication systems, in particular to a multichannel, ultra-wideband, miniaturized and anti-interference electronic countermeasure device.
Background
With the rapid development of the information communication system, the fields of satellite communication, remote sensing, missile-borne communication, electronic countermeasure and the like put higher and higher requirements on the antenna. In recent years, due to rapid iteration of modern military, electronic countermeasure and multi-type guided weapon systems, functions of a communication system tend to be diversified, integrated and miniaturized, but the miniaturized design of the system inevitably leads to more and more antennas with different frequency bands to be installed on a narrow platform, the coupling effect of the antenna system is more prominent, and the serious electromagnetic compatibility problem is caused.
Disclosure of Invention
The invention aims to provide a multichannel, ultra-wideband, miniaturized and anti-interference electronic countermeasure device, aiming at solving the technical problem of serious electromagnetic compatibility caused by the fact that the coupling effect of an antenna system is more and more prominent as more and more antennas with different frequency bands are installed on a narrow platform in the existing miniaturized design.
In order to solve the above problem, an embodiment of the present invention provides a multichannel, ultra-wideband, miniaturized, and anti-interference electronic countermeasure device, which includes a housing, a first Vivaldi antenna, a second Vivaldi antenna, and a third Vivaldi antenna, where an operating bandwidth of the first Vivaldi antenna is f L -5f L The shell comprises a bottom plate and an outer cover arranged on the bottom plate, a first Vivaldi antenna, a second Vivaldi antenna and a third Vivaldi antenna are arranged on the bottom plate and located in the outer cover, the first Vivaldi antenna and the second Vivaldi antenna are arranged at a first preset included angle, the third Vivaldi antenna is located at any end of the first Vivaldi antenna in the length direction, the first Vivaldi antenna is provided with a radiation patch, a first groove extending in the length direction of the first Vivaldi antenna is formed in the radiation patch, and a lumped element is arranged at an opening of at least one end of the first groove in the length direction.
In some embodiments, the first Vivaldi antenna is disposed perpendicular to the base plate, the radiation patch is provided with a tapered slot, and a plurality of pairs of first slots are symmetrically disposed on the radiation patch along the tapered slot.
In some embodiments, the second Vivaldi antenna has an operating bandwidth of 5f L -15f L The first preset included angle is 90 degrees.
In some embodiments, at least one corner of the first Vivaldi antenna facing the housing is provided with a chamfer.
In some embodiments, there are two second Vivaldi antennas, the two second Vivaldi antennas being symmetrically arranged along the first Vivaldi antenna.
In some embodiments, the third Vivaldi antenna has an operating bandwidth of 15f L -45f L The second Vivaldi antenna and the third Vivaldi antenna have the same structure, and the ratio of the size of the second Vivaldi antenna to the size of the third Vivaldi antenna is greater than 1.
In some embodiments, the second Vivaldi antenna is arranged in parallel with a third Vivaldi antenna, the number of third Vivaldi antennas being two, the two third Vivaldi antennas being arranged symmetrically along the first Vivaldi antenna.
In some embodiments, the base plate is circular, the base plate has a cut edge, the first Vivaldi antenna is disposed at a second predetermined angle to the cut edge, and either end of the first Vivaldi antenna in the length direction is disposed opposite to either end of the cut edge.
In some embodiments, the second predetermined included angle is 45 °.
In some embodiments, the multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure device further comprises a planar helical antenna having an operating bandwidth of 5f L -45f L The planar helical antennas are arranged on the base plate and located in the outer cover, the number of the planar helical antennas is W, the W planar helical antennas are distributed on at least one side of the first Vivaldi antenna, the W planar helical antennas are located at positions close to the periphery of the base plate, and W is a positive integer.
Compared with the prior art, the multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment at least has the following beneficial effects:
the embodiment of the invention discloses a multichannel, ultra-wideband, miniaturized and anti-interference electronic countermeasure device, which comprises: the antenna comprises a shell, a first Vivaldi antenna, a second Vivaldi antenna and a third Vivaldi antenna, wherein the working bandwidth of the first Vivaldi antenna is f L -5f L The shell comprises a bottom plate and an outer cover arranged on the bottom plate, a first Vivaldi antenna, a second Vivaldi antenna and a third Vivaldi antenna are arranged on the bottom plate and positioned in the outer cover, the first Vivaldi antenna and the second Vivaldi antenna are arranged in a first preset included angle, the third Vivaldi antenna is positioned at any end in the length direction of the first Vivaldi antenna, the first Vivaldi antenna is provided with a radiation patch, a first groove extending in the length direction of the first Vivaldi antenna is formed in the radiation patch, a lumped element is arranged at an opening at least one end in the length direction of the first groove, the first groove extending in the length direction of the first Vivaldi antenna is arranged through the radiation patch on the first Vivaldi antenna, the lumped element is arranged at the opening at least one end of the first slot in the length direction, the lumped element can be arranged at the opening at one end of the first slot in the length direction or at the openings at two ends of the first slot in the length direction, the first Vivaldi antenna is optimized, the lumped element is weighted along the direction of the opening of the first slot in a curve mode, the loaded lumped element can absorb redundant currents such as scattering, diffraction and parasitic currents, the anti-interference purpose is achieved, the electrical length of the first Vivaldi antenna can be prolonged, and the low-frequency-band antenna gain of the first Vivaldi antenna can be improved. The first Vivaldi antenna obtains larger antenna beam width while realizing miniaturization design through lumped element amplitude weighting, and effectively improves high-frequency lobe of an antenna directional diagram.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to make the technical solutions of the present invention practical in accordance with the contents of the specification, the following detailed description is given of preferred embodiments of the present invention with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a multi-channel, ultra-wideband, miniaturized, anti-jamming electronic countermeasure apparatus provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another view of a multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure device provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first Vivaldi antenna of a multichannel, ultra-wideband, miniaturized, anti-jamming electronic countermeasure device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second Vivaldi antenna of the multi-channel, ultra-wideband, miniaturized, anti-jamming electronic countermeasure equipment according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third Vivaldi antenna of a multichannel, ultra-wideband, miniaturized, anti-jamming electronic countermeasure device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a planar helical antenna of a multi-channel, ultra-wideband, miniaturized, anti-jamming electronic countermeasure apparatus according to an embodiment of the present invention.
Description of reference numerals:
1. a first Vivaldi antenna; 11. a radiation patch; 12. a first groove; 13. a lumped element; 21. a base plate; 22. a housing; 23. trimming; 3. a second Vivaldi antenna; 4. a third Vivaldi antenna; 5. a planar helical antenna; 51. a first spiral line; 52. a second helix.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, characteristics and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the description of the present invention, it is to be understood that the terms "first," "second," and the like in the description and claims of the present invention and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of describing the present invention, and do not imply that the devices or elements referred to must have a specific orientation or position, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
An embodiment of the present invention provides a multichannel, ultra-wideband, miniaturized, and anti-interference electronic countermeasure device, as shown in fig. 1 to 6, including a housing, a first Vivaldi antenna 1, a second Vivaldi antenna 3, and a third Vivaldi antenna 4, where a working bandwidth of the first Vivaldi antenna 1 is f L -5f L The shell includes bottom plate 21 and sets up dustcoat 22 on bottom plate 21, first Vivaldi antenna 1, second Vivaldi antenna 3, third Vivaldi antenna 4 all set up on bottom plate 21 and lie in dustcoat 22, first Vivaldi antenna 1 is the setting of first default contained angle with second Vivaldi antenna 3, third Vivaldi antenna 4 is located the secondAt any end of the Vivaldi antenna 1 in the length direction, the first Vivaldi antenna 1 is provided with a radiation patch 11, a first groove 12 extending along the length direction of the first Vivaldi antenna 1 is formed in the radiation patch 11, and a lumped element 13 is arranged at an opening at least one end of the first groove 12 in the length direction.
In this embodiment, a multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure device comprises: the phased array antenna comprises a shell, a first Vivaldi antenna 1, a second Vivaldi antenna 3 and a third Vivaldi antenna 4, wherein the working bandwidth of the first Vivaldi antenna 1 is f L -5f L The housing comprises a base plate 21 and an outer cover 22 arranged on the base plate 21, wherein a first Vivaldi antenna 1, a second Vivaldi antenna 3 and a third Vivaldi antenna 4 are all arranged on the base plate 21 and positioned in the outer cover 22, the first Vivaldi antenna 1 and the second Vivaldi antenna 3 are arranged at a first preset included angle, the third Vivaldi antenna 4 is positioned at any end of the first Vivaldi antenna 1 in the length direction, the first Vivaldi antenna 1 is provided with a radiation patch 11, the radiation patch 11 is provided with a first groove 12 extending along the first Vivaldi antenna 1 in the length direction, an opening at least one end of the first groove 12 in the length direction is provided with a lumped element 13, the radiation patch 11 on the first Vivaldi antenna 1 is provided with a first groove 12 extending along the first Vivaldi antenna 1 in the length direction, the lumped element 13 is arranged at the opening at least one end of the first slot 12 in the length direction, the lumped element 13 can be arranged at the opening at one end of the first slot 12 in the length direction, or the lumped element 13 can be arranged at the openings at two ends of the first slot 12 in the length direction, the first Vivaldi antenna 1 is optimized, the lumped element 13 is enabled to be weighted along the opening direction of the first slot 12 in a curve mode, the lumped element 13 can be loaded to absorb redundant currents such as scattering, diffraction and parasitic currents, the anti-interference purpose is achieved, the electrical length of the first Vivaldi antenna 1 can be prolonged, and the low-frequency-band antenna gain of the first Vivaldi antenna 1 can be improved, so that the optimized structure of the first Vivaldi antenna 1 can achieve the purposes of multi-channel ultra wide band, miniaturization, anti-interference electronic countermeasure equipment miniaturization and anti-interference. The first Vivaldi antenna 1 obtains a larger antenna beam width while realizing a miniaturized design through the amplitude weighting of the lumped element 13, and effectively improves the high-frequency lobe of an antenna directional diagram.
In some embodiments, the first Vivaldi antenna 1 is disposed perpendicular to the base plate 21, the radiation patch 11 is provided with a tapered groove, and the radiation patch 11 is symmetrically provided with a plurality of pairs of first grooves 12 along the tapered groove.
In this embodiment, the first Vivaldi antenna 1 is disposed perpendicular to the bottom plate 21, the radiation patch 11 is provided with a plurality of pairs of first slots 12, two pairs of first slots 12 are disposed symmetrically along the tapered slots, the first slots 12 may be disposed in a plurality of pairs, since the lumped element 13 is disposed at the opening at least one end of each first slot 12 in the length direction, preferably, the two ends are disposed, the specific first slot 12 may be 3 pairs, that is, 6 first slots 12, and 12 lumped elements 13 are disposed in total in the 6 first slots 12, the first Vivaldi antenna 1 is optimized through the plurality of lumped elements 13 on the first slots 12, so that the optimization effect is further enhanced, the lumped elements 13 are weighted along the opening direction of the first slots 12, the loading elements 13 can absorb excess currents such as scattering, diffraction, and parasitic currents, and the anti-interference effect can be achieved, the electrical length of the first Vivaldi antenna 1 can be extended, the gain of the first Vivaldi antenna 1 can be improved, and the anti-interference and anti-interference structure of the first Vivaldi antenna can be optimized. The first Vivaldi antenna 1 obtains a larger antenna beam width while realizing a miniaturized design through the amplitude weighting of the lumped element 13, and effectively improves the high-frequency lobe of an antenna directional diagram.
In some embodiments, the phased array antenna further comprises a second Vivaldi antenna 3, the second Vivaldi antenna 3 having an operating bandwidth of 5f L -15f L The second Vivaldi antenna 3 is disposed on the bottom plate 21 and located in the outer cover 22, and the first Vivaldi antenna 1 and the second Vivaldi antenna 3 are disposed at a first preset included angle.
In this embodiment, the second Vivaldi antenna 3 has an operating bandwidth of 5f L -15f L The first preset included angle is 90 degrees, and mutual interference is improved through reasonable layout; a second Vivaldi antenna 3 arranged on the base plate 21 and located in the housing 22, a first Vivaldi antennaThe di antenna 1 and the second Vivaldi antenna 3 are arranged in a first preset included angle, mutual interference between the first Vivaldi antenna 1 and the second Vivaldi antenna 3 is reduced, and meanwhile the second Vivaldi antenna 3 achieves the purpose of miniaturization through medium loading and curve optimization; when the first preset included angle is 90 degrees, the mutual interference strength of the first Vivaldi antenna 1 and the second Vivaldi antenna 3 is lowest when the first Vivaldi antenna 1 and the second Vivaldi antenna 3 are perpendicular to each other, so that the mutual interference of the first Vivaldi antenna 1 and the second Vivaldi antenna 3 is further reduced, and the anti-interference purpose of multi-channel, ultra wide band, miniaturization and anti-interference electronic countermeasure equipment is achieved.
In some embodiments, at least one corner of the first Vivaldi antenna 1 facing the outer shield 22 is provided with a chamfer.
In this embodiment, at least one corner of the first Vivaldi antenna 1 facing the housing 22 is provided with a chamfer, and since the bottom plate 21 and the housing 22 form the limitation of the height and width of the installation space of the antenna, by providing at least one corner of the first Vivaldi antenna 1 facing the housing 22 with a chamfer, specifically, one corner or two corners, the objective of multi-channel, ultra-wideband, miniaturization, and miniaturization of the anti-interference electronic countermeasure equipment can be achieved by providing a chamfer at the corner of the first Vivaldi antenna 1.
In some embodiments, there are two second Vivaldi antennas 3, the two second Vivaldi antennas 3 being symmetrically arranged along the first Vivaldi antenna 1.
In this embodiment, the number of the second Vivaldi antennas 3 is two, the two second Vivaldi antennas 3 are symmetrically arranged along the first Vivaldi antenna 1, the number of the second Vivaldi antennas 3 is increased, the bottom plate 21 and the outer cover 22 are effectively utilized to form an antenna installation space, and meanwhile, the capability of the multichannel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment for resisting against hitting multiple targets is also improved.
In some embodiments, the third Vivaldi antenna 4 has an operating bandwidth of 15f L -45f L The second Vivaldi antenna 3 and the third Vivaldi antenna 4 have the same structure, and the ratio of the size of the second Vivaldi antenna 3 to the size of the third Vivaldi antenna 4 is greater than 1.
In this embodiment, the operating bandwidth of the third Vivaldi antenna 4 is 15f L -45f L The second Vivaldi antenna 3 and the third Vivaldi antenna 4 have the same structure, the ratio of the size of the second Vivaldi antenna 3 to the size of the third Vivaldi antenna 4 is larger than 1, certainly, the second Vivaldi antenna 3 and the third Vivaldi antenna 4 have the same structure and the same approximate structure curve, and the third Vivaldi antenna 4 is positioned at any end of the first Vivaldi antenna 1 in the length direction, so that the third Vivaldi antenna 4 is far away from the second Vivaldi antenna 3, the mutual coupling degree is small, and the electromagnetic compatibility problem of the multichannel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment is improved; the second Vivaldi antenna 3 and the third Vivaldi antenna 4 are identical in structure, the ratio of the size of the second Vivaldi antenna 3 to the size of the third Vivaldi antenna 4 is larger than 1, and mutual interference is improved through reasonable layout. The aim of resisting interference of multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment is fulfilled.
In some embodiments, the second Vivaldi antennas 3 are arranged in parallel with the third Vivaldi antennas 4, the number of the third Vivaldi antennas 4 being two, the two third Vivaldi antennas 4 being symmetrically arranged along the first Vivaldi antenna 1.
In this embodiment, the second Vivaldi antennas 3 and the third Vivaldi antennas 4 are arranged in parallel, the number of the third Vivaldi antennas 4 is two, and the two third Vivaldi antennas 4 are symmetrically arranged along the first Vivaldi antenna 1, so that the number of antennas forming an antenna installation space by the base plate 21 and the outer cover 22 is increased, and the capability of the multichannel, ultra-wideband, miniaturized, and anti-interference electronic countermeasure equipment in resisting against hitting multiple targets is improved; meanwhile, the positions of the second Vivaldi antenna 3, the third Vivaldi antenna 4 and the first Vivaldi antenna 1 are reasonably arranged, mutual interference among the second Vivaldi antenna 3, the third Vivaldi antenna 4 and the first Vivaldi antenna 1 is avoided, and the purposes of multi-channel, ultra wide band, miniaturization and anti-interference of anti-interference electronic countermeasure equipment are achieved.
In some embodiments, the base 21 is circular, the base 21 has a cut edge 23, the first Vivaldi antenna 1 is disposed at a second predetermined angle with respect to the cut edge 23, and either end of the first Vivaldi antenna 1 in the longitudinal direction is disposed opposite to either end of the cut edge 23.
In this embodiment, the base plate 21 is circular, the base plate 21 has an edge 23, the first Vivaldi antenna 1 and the edge 23 are arranged at a second preset included angle, any end of the first Vivaldi antenna 1 in the length direction is arranged opposite to any end of the edge 23, and the volume of the multichannel, ultra-wideband, miniaturized, and anti-interference electronic countermeasure device is further reduced by arranging the edge 23 on the base plate 21, so as to achieve the purpose of miniaturization of the multichannel, ultra-wideband, miniaturized, and anti-interference electronic countermeasure device.
In some embodiments, the second predetermined included angle is 45 °.
In this embodiment, when the second preset included angle between the first Vivaldi antenna 1 and the trimming 23 is 45 °, the phase difference between the azimuth and the elevation of the second Vivaldi antenna 3 and the third Vivaldi antenna 4 is better, and the mutual interference between the second Vivaldi antenna 3, the third Vivaldi antenna 4 and the first Vivaldi antenna 1 can be avoided, so as to achieve the purpose of multi-channel, ultra-wideband, miniaturization, and anti-interference of the anti-interference electronic countermeasure equipment.
In some embodiments, the multi-channel, ultra-wideband, miniaturized, interference-free electronic countermeasure device further comprises a planar spiral antenna 5, the planar spiral antenna 5 having an operating bandwidth of 5f L -45f L The planar helical antennas 5 are arranged on the base plate 21 and located in the outer cover 22, the number of the planar helical antennas 5 is W, the W planar helical antennas 5 are distributed on at least one side of the first Vivaldi antenna 1, and the W planar helical antennas 5 are located at positions close to the periphery of the base plate 21, wherein W is a positive integer.
In the embodiment, the multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment also comprisesComprises a planar spiral antenna 5, wherein the operating bandwidth of the planar spiral antenna 5 is 5f L -45f L The planar spiral antennas 5 are arranged on the bottom plate 21 and located in the outer cover 22, the number of the planar spiral antennas 5 is W, the number of W can be 8, and the like, and the capacity of resisting against hitting multiple targets of multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment is improved by increasing the number of antennas in an installation space of the antennas formed by the bottom plate 21 and the outer cover 22; the W planar spiral antennas 5 are distributed on at least one side of the first Vivaldi antenna 1, and the W planar spiral antennas 5 are positioned at positions close to the periphery of the base plate 21, wherein W is a positive integer; the planar spiral antenna 5 is far away from the second Vivaldi antenna 3, the third Vivaldi antenna 4 and the first Vivaldi antenna 1, the mutual coupling degree between the planar spiral antenna 5 and the second Vivaldi antenna 3, between the planar spiral antenna 4 and between the planar spiral antenna 5 and the first Vivaldi antenna 1 is small, the electromagnetic compatibility problem of multi-channel, ultra-wideband, miniaturization and anti-interference electronic countermeasure equipment is solved, and the anti-interference purpose of the multi-channel, ultra-wideband, miniaturization and anti-interference electronic countermeasure equipment is achieved.
The planar helical antenna 5 includes a first helical line 51, where N is a positive integer, N may be 3, and N is N lumped elements 13 disposed on the first helical line 51; the cross section of the planar helical antenna 5 is low, so that the mutual coupling degree between the planar helical antenna 5 and the second Vivaldi antenna 3, the mutual coupling degree between the planar helical antenna 5 and the third Vivaldi antenna 4, and the mutual coupling degree between the planar helical antenna 5 and the first Vivaldi antenna 1 are low; meanwhile, the N lumped elements 13 are arranged on the first spiral line 51 of the planar spiral antenna 5 for loading the absorbing resistor at the tail end, and the loading resistor mainly functions to reduce the reflected current at the terminal of the antenna arm, so that the low-frequency characteristic of the planar spiral antenna 5 is improved, and the miniaturization of the antenna is realized from another aspect; the planar spiral antenna 5 mainly improves coupling through a layout mode; the mutual coupling degree between the planar spiral antenna 5 and the second Vivaldi antenna 3, the mutual coupling degree between the planar spiral antenna 4 and the first Vivaldi antenna 1 are small, the electromagnetic compatibility problem of multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment is solved, and the anti-interference purpose of the multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment is achieved.
The planar helical antenna 5 further includes a second helical line 52, an inner end of the first helical line 51 is connected to an inner end of the second helical line 52 through a feed port, and the second helical line 52 is provided with M lumped elements 13, where M is a positive integer, and M may be 3, etc.; the structure of the second spiral line 52 may be the structure of an archimedean spiral antenna, the first spiral line 51 and the second spiral line 52 have the same structure, and are symmetrically arranged with the center of the feeding port as the origin on the plane of the bottom plate 21, so a balanced feeding mode is required when feeding the second spiral line; balanced and unbalanced conversion is realized by the balun; in addition, M lumped elements 13 are arranged on the second spiral line 52 of the planar spiral antenna 5 for loading resistors at the tail ends, and the loading resistors mainly function to reduce the reflected current at the terminal of the antenna arm, so that the low-frequency characteristic of the planar spiral antenna 5 is improved, and the miniaturization of the antenna is realized from another aspect; the planar spiral antenna 5 mainly improves coupling through a layout mode; the mutual coupling degree between the planar spiral antenna 5 and the second Vivaldi antenna 3, the mutual coupling degree between the planar spiral antenna 4 and the first Vivaldi antenna 1 are small, the electromagnetic compatibility problem of multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment is solved, and the anti-interference purpose of the multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment is achieved.
In some embodiments, the number of the planar helical antennas 5 is W, the W planar helical antennas 5 are distributed on at least one side of the first Vivaldi antenna 1, and the W planar helical antennas 5 are located near the outer periphery of the chassis 21, where W is a positive integer.
In the embodiment, when the number of the planar spiral antennas 5 is W, the number of W may be 8, and the like, the ability of the multi-channel, ultra-wideband, miniaturized, and anti-interference electronic countermeasure equipment to resist hitting multiple targets is improved by increasing the number of antennas of the installation space of the antenna formed by the base plate 21 and the outer cover 22; the W planar spiral antennas 5 are distributed on at least one side of the first Vivaldi antenna 1, and the W planar spiral antennas 5 are positioned at positions close to the periphery of the base plate 21, wherein W is a positive integer; the planar spiral antenna 5 is far away from the second Vivaldi antenna 3, the third Vivaldi antenna 4 and the first Vivaldi antenna 1, the mutual coupling degree between the planar spiral antenna 5 and the second Vivaldi antenna 3, between the planar spiral antenna 4 and between the planar spiral antenna 5 and the first Vivaldi antenna 1 is small, the electromagnetic compatibility problem of multi-channel, ultra-wideband, miniaturization and anti-interference electronic countermeasure equipment is solved, and the anti-interference purpose of the multi-channel, ultra-wideband, miniaturization and anti-interference electronic countermeasure equipment is achieved.
In summary, the multichannel, ultra-wideband, miniaturized, and anti-interference electronic countermeasure device of the present invention includes 13 antenna elements in total, specifically, one first Vivaldi antenna 1, two second Vivaldi antennas 3, two third Vivaldi antennas 4, and eight planar spiral antennas 5, and realizes multichannel by providing multiple antenna elements, and by reasonably arranging the positions between the first Vivaldi antenna 1, the second Vivaldi antenna 3, the third Vivaldi antenna 4, and the planar spiral antenna 5, the antenna elements are miniaturized and designed within a specified size range on the premise of ensuring electrical performance, and the operating bandwidth of the first Vivaldi antenna 1 is f L -5f L The operating bandwidth of the second Vivaldi antenna 3 is 5f L -15f L The third Vivaldi antenna 4 has an operating bandwidth of 15f L -45f L The working bandwidth of the planar helical antenna 5 is 5f L -45f L The whole bandwidth of the antenna of the multi-channel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment reaches 45 octaves.
It will be readily understood by those skilled in the art that the advantageous features described above may be freely combined, superimposed without conflict.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses, devices and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A multichannel, ultra wide band, miniaturized, anti-interference electronic countermeasure equipment which characterized in that: the antenna comprises a shell, a first Vivaldi antenna (1), a second Vivaldi antenna (3) and a third Vivaldi antenna (4), wherein the working bandwidth of the first Vivaldi antenna (1) is f L -5f L The utility model discloses a set up including the bottom plate on the bottom plate (21), the shell includes bottom plate (21) and sets up dustcoat (22) on bottom plate (21), first Vivaldi antenna (1), second Vivaldi antenna (3), third Vivaldi antenna (4) all set up on bottom plate (21) and lie in dustcoat (22), first Vivaldi antenna (1) with second Vivaldi antenna (3) are the setting of first predetermined contained angle, third Vivaldi antenna (4) are located first Vivaldi antenna (1) length direction's arbitrary end, first Vivaldi antenna (1) have radiation paster (11), offer on radiation paster (11) along first groove (12) that first Vivaldi antenna (1) length direction extends, the opening part of first groove (12) length direction's at least one end is provided with element (13).
2. A multichannel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus as claimed in claim 1, characterized in that: the first Vivaldi antenna (1) is perpendicular to the bottom plate (21), a conical groove is formed in the radiation patch (11), and a plurality of pairs of first grooves (12) are symmetrically formed in the radiation patch (11) along the conical groove.
3. The multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus of claim 1, further characterized by: the second Vivaldi antenna (3) has an operating bandwidth of 5f L -15f L And the first preset included angle is 90 degrees.
4. The multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus of claim 1, further characterized by: at least one corner of the first Vivaldi antenna (1) facing the outer shield (22) is provided with a chamfer.
5. The multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus of claim 1, further characterized by: the number of the second Vivaldi antennas (3) is two, and the two second Vivaldi antennas (3) are symmetrically arranged along the first Vivaldi antenna (1).
6. The multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus of claim 1, further characterized by: the operating bandwidth of the third Vivaldi antenna (4) is 15f L -45f L The second Vivaldi antenna (3) and the third Vivaldi antenna (4) are identical in structure, and the ratio of the size of the second Vivaldi antenna (3) to the size of the third Vivaldi antenna (4) is greater than 1.
7. The multi-channel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus of claim 1, further characterized by: the second Vivaldi antenna (3) is arranged in parallel with the third Vivaldi antenna (4), the number of the third Vivaldi antennas (4) is two, and the two third Vivaldi antennas (4) are symmetrically arranged along the first Vivaldi antenna (1).
8. A multichannel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus as claimed in any one of the claims 1 to 7, characterized in that: the bottom plate (21) are circular, bottom plate (21) have side cut (23), first Vivaldi antenna (1) with side cut (23) are the setting of second default contained angle, any end of first Vivaldi antenna (1) length direction with any end of side cut (23) sets up relatively.
9. A multichannel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus as claimed in claim 8, further comprising: the second preset included angle is 45 degrees.
10. A multichannel, ultra-wideband, miniaturized, tamper-resistant electronic countermeasure apparatus as claimed in any one of the claims 1 to 7, characterized in that: the multichannel, ultra-wideband, miniaturized and anti-interference electronic countermeasure equipment further comprises a planar spiral antenna (5), and the working bandwidth of the planar spiral antenna (5) is 5f L -45f L The planar spiral antennas (5) are arranged on the base plate (21) and located in the outer cover (22), the number of the planar spiral antennas (5) is W, the W planar spiral antennas (5) are distributed on at least one side of the first Vivaldi antenna (1), the W planar spiral antennas (5) are located at positions close to the periphery of the base plate (21), and W is a positive integer.
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| CN202211466440.7A CN115513641B (en) | 2022-11-22 | 2022-11-22 | Multichannel, ultra wide band, miniaturized, anti-interference electronic countermeasure equipment |
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| CN202211466440.7A CN115513641B (en) | 2022-11-22 | 2022-11-22 | Multichannel, ultra wide band, miniaturized, anti-interference electronic countermeasure equipment |
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| CN115513641B CN115513641B (en) | 2023-03-03 |
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| CN115513641B (en) | 2023-03-03 |
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Denomination of invention: A multi-channel, ultra wideband, miniaturized, anti-interference electronic countermeasure device Effective date of registration: 20230627 Granted publication date: 20230303 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: Xi'an Tongfei Electronic Technology Co.,Ltd. Registration number: Y2023980046097 |
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