Decoupling device applied to millimeter wave radar transceiving antenna

Abstract

The utility model discloses a decoupling device applied to a millimeter wave radar transmit-receive antenna. The decoupling device comprises a transmit-receive antenna and a decoupling device. The transmit-receive antenna comprises an antenna body, and a plurality of antenna units are arranged in the antenna body. The decoupling device comprises a dielectric plate, the antenna body is connected with the dielectric plate, and a first decoupling unit and a second decoupling unit are arranged in the dielectric plate. The decoupling device of the millimeter wave radar transmit-receive antenna disclosed by the utility model has the beneficial effects that the shape of the gap of the first decoupling unit is different from that of the gap of the second decoupling unit, so that electromagnetic waves with specific frequencies are reasonably optimized, the coupling degree between the antenna units is reduced, and interference is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of antenna, concretely relates to a kind of decoupling device applied to millimeter wave radar transceiving antenna. BACKGROUND

[0002] The utility model with the subject name of a kind of decoupling structure of miniaturized metasurface array antenna of the utility model patent with the publication number CN219067233U, its IPC classification number is H01Q1 / 52, its technical scheme discloses that "array antenna is fixed with metasurface dielectric substrate by support stud, etching has several decoupling units in array arrangement on metasurface dielectric substrate, every decoupling unit is formed by the intersection connection of three X direction square wave type slots and three Y direction square wave type slots".

[0003] From this, the above utility model patent has disclosed one of the technical schemes of antenna decoupling device. However, the technical scheme disclosed in the above utility model patent focuses on increasing the arrangement density of slot, and does not further solve the problem of embedding decoupling unit slot in dielectric plate, which needs to be further improved. UTILITY MODEL CONTENT

[0004] The utility model aims at the condition of prior art, overcomes the above-mentioned defects, and provides a kind of decoupling device applied to millimeter wave radar transceiving antenna.

[0005] The utility model adopts the following technical scheme, and is applied to the decoupling device of millimeter wave radar transceiving antenna, including transceiving antenna and decoupling device, wherein,

[0006] Transceiving antenna includes antenna body, and the antenna body is built-in with several antenna units;

[0007] Decoupling device includes dielectric plate, and the antenna body is connected with the dielectric plate, and the dielectric plate is built-in with first decoupling unit and second decoupling unit;

[0008] First decoupling unit has several first decoupling unit slots embedded in dielectric plate, and first decoupling unit slot is sequentially arranged from the outer surface of dielectric plate to the center of dielectric plate, and the slot width of first decoupling unit slot gradually increases, and first decoupling unit slot has spacing with antenna body;

[0009] Second decoupling unit has several second decoupling unit slots embedded in dielectric plate, and second decoupling unit slot is sequentially arranged from the outer surface of dielectric plate to the center of dielectric plate, and the slot width of second decoupling unit slot gradually increases, and second decoupling unit slot has spacing with antenna body.

[0010] As the preferred technical solutions of the above technical solutions, the shapes of the first decoupling unit slits are the same, the shapes of the second decoupling unit slits are the same, and the shapes of the first decoupling unit slits are different from the shapes of the second decoupling unit slits.

[0011] As the preferred technical solutions of the above technical solutions, the shapes of the first decoupling unit slits are the same, the shapes of the second decoupling unit slits are the same, and the shapes of the first decoupling unit slits are different from the shapes of the second decoupling unit slits.

[0012] As the preferred technical solutions of the above technical solutions, the shapes of the first decoupling unit slits are the same, the shapes of the second decoupling unit slits are the same, and the shapes of the first decoupling unit slits are different from the shapes of the second decoupling unit slits.

[0013] As the preferred technical solutions of the above technical solutions, the shapes of the first decoupling unit slits are the same, the shapes of the second decoupling unit slits are the same, and the shapes of the first decoupling unit slits are different from the shapes of the second decoupling unit slits.

[0014] The decoupling device of the millimeter wave radar transceiving antenna has the beneficial effects that the shapes of the first decoupling unit slits are different from the shapes of the second decoupling unit slits, so that the electromagnetic waves of specific frequencies are reasonably optimized, the coupling degree between the antenna units is reduced, and thus the interference is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of one angle of the present application.

[0016] Figure 2 is a perspective view of another angle of the present application.

[0017] Figure 3 is a front view of the present application.

[0018] Figure 4 is a side view of the present application.

[0019] Figure 5 is a sectional view along the AA direction of the present application. Figure 4

[0020] ​The reference signs include: 100 - transceiving antenna; 110 - antenna body; 200 - decoupling device; 210 - dielectric plate; 220 - first decoupling unit; 221 - first decoupling unit first slit; 222 - first decoupling unit second slit; 223 - first decoupling unit third slit; 224 - first decoupling unit fourth slit; 225 - first decoupling unit fifth slit; 226 - first decoupling unit sixth slit; 227 - first decoupling unit seventh slit; 230 - second decoupling unit; 231 - second decoupling unit first slit; 232 - second decoupling unit second slit; 233 - second decoupling unit third slit; 234 - second decoupling unit fourth slit; 235 - second decoupling unit fifth slit; 236 - second decoupling unit sixth slit; 237 - second decoupling unit seventh slit; 240 - first protruding structure; 250 - second protruding structure; 260 - third protruding structure; 270 - fourth protruding structure. DETAILED DESCRIPTION

[0021] The utility model discloses a kind of decoupling devices of millimeter wave radar transceiving antenna, below Preferred Embodiment (Embodiment 1), referring to the Figures 1 to 5 , the specific embodiment of the utility model is further described.

[0022] Referring to the Figures 1 to 5 , Figures 1 to 4 Different perspective decoupling devices of millimeter wave radar transceiving antenna are respectively shown, Figure 5 Cross-sectional structure of decoupling device of millimeter wave radar transceiving antenna is shown.

[0023] Embodiment 1.

[0024] Preferably, the decoupling device of millimeter wave radar transceiving antenna includes transceiving antenna 100 and decoupling device 200, wherein,

[0025] Transceiving antenna 100 includes antenna body 110, antenna body 110 is built-in with several antenna units (not shown in drawing);

[0026] Decoupling device 200 includes dielectric plate 210, antenna body 110 is connected with dielectric plate 210, dielectric plate 210 is built-in with (only 1) first decoupling unit 220 and (only 1) second decoupling unit 230;

[0027] First decoupling unit 220 has several first decoupling unit slits embedded in dielectric plate 210, first decoupling unit slit is sequentially arranged from the outer surface of dielectric plate 210 to the center of dielectric plate 210, and the slit width of first decoupling unit slit gradually increases (in the direction from the outer surface of dielectric plate 210 to the center of dielectric plate 210), first decoupling unit slit has spacing with antenna body 110 (seeFigure 1 a distance L).

[0028] The second decoupling unit 230 has a plurality of second decoupling unit slots embedded in the dielectric plate 210, the second decoupling unit slots are sequentially arranged from the outer surface of the dielectric plate 210 to the center of the dielectric plate 210, and the slot width of the second decoupling unit slots gradually increases (in the direction from the outer surface of the dielectric plate 210 to the center of the dielectric plate 210), and the second decoupling unit slots have a distance from the antenna body 110; so as to reasonably optimize the specific frequency of the electromagnetic wave (as an example, the millimeter wave signal), reduce the coupling degree between the antenna units, thereby reducing interference.

[0029] Wherein, the shapes of the first decoupling unit slots are the same (ignoring the slot width), the shapes of the second decoupling unit slots are the same (ignoring the slot width), and the shapes of the first decoupling unit slots are different from the shapes of the second decoupling unit slots.

[0030] Wherein, the shapes of the first decoupling unit slots are preferably L-shaped.

[0031] Wherein, the shapes of the second decoupling unit slots are preferably circular arc-shaped.

[0032] Wherein, the first decoupling unit slots include a first decoupling unit first slot 221, a first decoupling unit second slot 222, a first decoupling unit third slot 223, a first decoupling unit fourth slot 224, a first decoupling unit fifth slot 225, a first decoupling unit sixth slot 226, and a first decoupling unit seventh slot 227, and adjacent two first decoupling unit slots have a distance (see Figure 5 a distance H).

[0033] Wherein, the second decoupling unit slots include a second decoupling unit first slot 231, a second decoupling unit second slot 232, a second decoupling unit third slot 233, a second decoupling unit fourth slot 234, a second decoupling unit fifth slot 235, a second decoupling unit sixth slot 236, and a second decoupling unit seventh slot 237, and adjacent two second decoupling unit slots have a distance.

[0034] Wherein, the dielectric plate 210 is further provided with a plurality of protruding structures, the protruding structures are located on the outer surface of the dielectric plate 210, and the protruding structures are integrally formed with the dielectric plate 210.

[0035] Wherein, in order to reduce interference, the dielectric plate 210 is embedded with the first decoupling unit 220 or the second decoupling unit 230, and the outer surface of the dielectric plate 210 in this part of the region is not provided with the protruding structure. Correspondingly, the dielectric plate 210 is provided with the protruding structure in this part of the region, and the inner part of the dielectric plate 210 in this part of the region is no longer embedded with the first decoupling unit 220 or the second decoupling unit 230.

[0036] The convex structures include a first convex structure 240, a second convex structure 250, a third convex structure 260, and a fourth convex structure 270, and the cross-sectional structures (in the vertical plane) of each of the convex structures are different from each other, so as to assist in optimizing electromagnetic waves of specific frequencies.

[0037] It is worth mentioning that the specific optimization method of the decoupling unit gap for optimizing electromagnetic waves of specific frequencies and other technical features of the utility model patent application should be regarded as the prior art, and the specific structure, working principle, and possible control mode and spatial arrangement mode involved in these technical features can be selected conventionally in the field, and should not be regarded as the invention point of the utility model patent. The utility model patent will not be further expanded and described in detail.

[0038] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A decoupling device for a millimeter-wave radar transceiver antenna, characterized in that, The transceiving antenna and the decoupling device are included, wherein, The transceiving antenna includes an antenna body, and the antenna body is internally provided with a plurality of antenna units; The decoupling device includes a dielectric plate, and the antenna body is connected with the dielectric plate, and the dielectric plate is internally provided with a first decoupling unit and a second decoupling unit; The first decoupling unit has a plurality of first decoupling unit slots embedded in the dielectric plate, the first decoupling unit slots are sequentially arranged from the outer surface of the dielectric plate to the center of the dielectric plate, and the slot width of the first decoupling unit slots gradually increases, and the first decoupling unit slots have a spacing with the antenna body; The second decoupling unit has a plurality of second decoupling unit slots embedded in the dielectric plate, the second decoupling unit slots are sequentially arranged from the outer surface of the dielectric plate to the center of the dielectric plate, and the slot width of the second decoupling unit slots gradually increases, and the second decoupling unit slots have a spacing with the antenna body.

2. The decoupling device of a millimeter-wave radar transceiver antenna according to claim 1, characterized in that The shapes of the first decoupling unit slots are the same, the shapes of the second decoupling unit slots are the same, and the shapes of the first decoupling unit slots are different from the shapes of the second decoupling unit slots.

3. The decoupling device of a millimeter-wave radar transceiver antenna according to claim 2, characterized in that The shapes of the first decoupling unit slots are L-shaped, and the shapes of the second decoupling unit slots are circular arc-shaped.

4. The decoupling device of a millimeter-wave radar transceiver antenna according to claim 1, characterized in that The first decoupling unit slots include a first decoupling unit first slot, a first decoupling unit second slot, a first decoupling unit third slot, a first decoupling unit fourth slot, a first decoupling unit fifth slot, a first decoupling unit sixth slot, and a first decoupling unit seventh slot.

5. The decoupling device of a millimeter-wave radar transceiver antenna according to claim 1, characterized in that The second decoupling unit slots include a second decoupling unit first slot, a second decoupling unit second slot, a second decoupling unit third slot, a second decoupling unit fourth slot, a second decoupling unit fifth slot, a second decoupling unit sixth slot, and a second decoupling unit seventh slot.

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