Radar device and slot type antenna module thereof

Abstract

The utility model provides a radar device. The radar device comprises a control module and a plurality of slot type antenna modules. The plurality of slot-type antenna modules are respectively coupled with the control module, the plurality of slot-type antenna modules respectively face different directions, each slot-type antenna module is suitable for emitting radio wave beams and receiving reflected radio waves, and each slot-type antenna module is suitable for receiving the reflected radio waves. And the reflected radio waves are transmitted to the control module so as to be analyzed and processed.

Description

Technical Field

[0001] Embodiments of the present invention relate to a radar device, and more particularly to a radar device using a slot-type antenna module. Background Art

[0002] Radar devices primarily use radio waves to detect targets and determine their spatial position. In recent years, radar systems have been incorporated into rotating antenna mechanisms for maritime applications. This system utilizes the Doppler effect to detect and highlight moving targets, highlighting them in a radar image on the radar display. This allows for navigation around other vessels or in inclement weather to help avoid collisions, detect birds heading towards fishing spots where they are feeding on the sea, and track weather developments.

[0003] However, in existing technologies, to efficiently update radar signals, radar devices must rapidly rotate their antennas to change the direction and angle of signal transmission and reception. This limited detection performance due to factors such as antenna rotation speed and size, making further improvement difficult. Utility Model Content

[0004] To address the problems of the prior art, embodiments of the present invention provide a radar device comprising a control module and a plurality of slot antenna modules. The plurality of slot antenna modules are respectively coupled to the control module, wherein the plurality of slot antenna modules face different directions. Each slot antenna module is adapted to emit a radio wave beam and receive reflected radio waves, which are then transmitted to the control module for analysis and processing.

[0005] In one embodiment, the radar device further includes a device cover, wherein the device cover covers the control module and the plurality of slot-type antenna modules, and the plurality of slot-type antenna modules are respectively arranged on an inner surface of the device cover.

[0006] In one embodiment, the device housing is in the shape of a tetrahedron, a triangular pyramid, a quadrangular pyramid, a hemisphere, or a soccer ball. The device housing includes a plurality of housing planes, and each housing plane is provided with a single slot antenna module.

[0007] In one embodiment, the radar device further includes a plurality of flexible waveguide tubes, one end of each flexible waveguide tube is connected to the corresponding slot antenna module, and the other end thereof is connected to the control module.

[0008] In one embodiment, the radar device does not include a rotation motor.

[0009] In an embodiment, the slot antenna module includes a substrate, a first metal layer, a second metal layer, a plurality of micro-vias, a first feed conductor, and a second feed conductor. The first metal layer is formed on a first side of the substrate, wherein a plurality of grid openings are formed on the first metal layer. The second metal layer is formed on a second side of the substrate, the second side being opposite to the first side, wherein a first end opening and a second end opening are formed on the second metal layer. The plurality of micro-vias electrically connect the first metal layer and the second metal layer, the plurality of micro-vias surround a defined elongated region on the substrate, the plurality of grid openings are located within the elongated region, the first end opening corresponds to one end of the elongated region, and the second end opening corresponds to another end of the elongated region. The first feed conductor is disposed within the first end opening. The second feed conductor is disposed within the second end opening.

[0010] In an embodiment, the plurality of grid openings include a plurality of first grid openings and a plurality of second grid openings, the plurality of first grid openings form a first grid opening unit, and the plurality of second grid openings form a second grid opening unit, the first grid opening unit and the second grid opening unit are arranged along a length direction of the elongated region.

[0011] In an embodiment, the first grid opening unit includes a first row, a second row, and a third row, the first row is sandwiched between the second row and the third row, the number of the plurality of first grid openings of the first row is greater than the number of the plurality of first grid openings of the second row, and the number of the plurality of first grid openings of the first row is greater than the number of the plurality of first grid openings of the third row.

[0012] In an embodiment, the slot antenna module further includes a plurality of through holes, the plurality of through holes surround one end of the elongated region and another end of the elongated region, respectively, and one end of the plurality of flexible waveguides is fixed to the plurality of through holes.

[0013] In another embodiment, the utility model provides a slot hole type antenna module, including substrate, first metal layer, second metal layer, a plurality of micro interlayer holes, first feed conductor and second feed conductor. First metal layer forms in the first surface of the substrate, wherein, a plurality of lattice openings are formed on the first metal layer. Second metal layer forms in the second surface of the substrate, the second surface is opposite the first surface, and a first end opening and a second end opening are formed on the second metal layer. The plurality of micro interlayer holes are electrically connected to the first metal layer and the second metal layer, and the plurality of micro interlayer holes surround a long and narrow area on the substrate, the plurality of lattice openings are located in the long and narrow area, the first end opening corresponds to one end of the long and narrow area, and the second end opening corresponds to the other end of the long and narrow area. The first feed conductor is arranged in the first end opening. The second feed conductor is arranged in the second end opening. Wherein, the plurality of lattice openings include a plurality of first lattice openings and a plurality of second lattice openings, the plurality of first lattice openings form a first lattice opening unit, the plurality of second lattice openings form a second lattice opening unit, and the first lattice opening unit and the second lattice opening unit are arranged along the length direction of the long and narrow area.

[0014] The radar device of the utility model embodiment omits the existing rotating motor, matches various multi-faceted 3D mechanisms (tetrahedron / triangle pyramid / tetragonal pyramid / half football surface / football surface / polyhedron), assembles the slot hole type antenna module in the face wall, can be embedded or placed in the outer layer, is not limited to up and down or side, can be adjusted according to the angle of the radiation required. Each slot hole type antenna module can be independently controlled, and the direction and angle can be designed according to product application. At the same time, synchronous rapid refreshing radar image map can be realized by controlling the module matching software, and the front and rear and left and right long-distance radars can be saved on the navigation and vehicle-mounted, and multiple advantages such as power saving, economy, accuracy and sensitivity are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 To show the radar device of the first embodiment of the utility model.

[0016] Figure 2 To show the radar device of the second embodiment of the utility model.

[0017] Figure 3A To show the front of the slot hole type antenna module of the utility model embodiment.

[0018] Figure 3B To show the back of the slot hole type antenna module of the utility model embodiment.

[0019] Figure 3C To show the cross-sectional view of the slot hole type antenna module of the utility model embodiment.

[0020] Figure 4 For showing the detailed structure of each grid opening unit, the first grid opening unit is taken as an example.

[0021] Figure 5A For showing the partial enlarged view of the front of the slot-hole type antenna module.

[0022] Figure 5B For showing the partial enlarged view of the back of the slot-hole type antenna module. DETAILED DESCRIPTION

[0023] Figure 1 For showing the radar device of the first embodiment of the present application. Referring to Figure 1 , the radar device R1 of the first embodiment of the present application comprises a control module C and a plurality of slot-hole type antenna modules A. The plurality of slot-hole type antenna modules A are respectively coupled to the control module C, wherein the plurality of slot-hole type antenna modules A are respectively oriented in different directions, each slot-hole type antenna module A is adapted to emit a radio wave beam (not shown) and adapted to receive a reflected radio wave (not shown) which is reflected and transmitted to the control module C for analysis and processing.

[0024] Referring to Figure 1 , in an embodiment, the radar device further comprises a device housing S1, wherein the device housing S1 covers the control module C and the plurality of slot-hole type antenna modules A, and the plurality of slot-hole type antenna modules A are respectively arranged on the inner surface of the device housing S1.

[0025] Referring to Figure 1 , in this embodiment, the device housing S1 is a tetrahedron, and the device housing S1 comprises a plurality of housing planes (such as Figure 1 four side surfaces and one top surface), and each housing plane is provided with a single slot-hole type antenna module A.

[0026] Figure 2 For showing the radar device of the second embodiment of the present application. Referring to Figure 2 , the radar device R2 of the second embodiment of the present application comprises a control module C, a plurality of slot-hole type antenna modules A and a device housing S2. In this embodiment, the device housing S2 is a quadrangular pyramid. The above disclosure does not limit the present application, and in another embodiment, the device housing can also be a triangular pyramid, a semi-spherical body, a spherical body or other shapes.

[0027] Referring to Figure 1 , Figure 2In one embodiment, the radar device further comprises a plurality of flexible waveguide tubes L. One end of each flexible waveguide tube L is connected to the corresponding slot antenna module A, and the other end thereof is connected to the control module C. Figure 1 、 Figure 2 In the figure, the flexible waveguide L is only a simple schematic diagram and not a physical structure, and the above disclosure does not limit the present invention.

[0028] Matching reference Figure 1 、 Figure 2 In one embodiment, the radar device does not have a rotary motor.

[0029] Matching reference Figure 1 、 Figure 2 In one embodiment, the circuit board of the control module C does not need to be designed with a low dielectric constant (Dk), and only needs to use a single layer of low dielectric loss (Df) material.

[0030] Figure 3A 1. The front side of the slot-type antenna module of the embodiment of the present invention is shown. Figure 3B FIG. 4 is a diagram showing the reverse side of the slot-type antenna module according to an embodiment of the present invention. Figure 3C This is a cross-sectional diagram showing the slot-type antenna module of an embodiment of the present invention. Figure 3A 、 Figure 3B as well as Figure 3C In one embodiment, the slot antenna module A includes a substrate 3, a first metal layer 1, a second metal layer 2, a plurality of microvias 51, a first feed conductor 41, and a second feed conductor 42. The first metal layer 1 is formed on the first surface 31 of the substrate 3, wherein the first metal layer 1 has a plurality of lattice-shaped openings 11 formed therein. The second metal layer 2 is formed on the second surface 32 of the substrate, which is opposite the first surface 31. The second metal layer 2 has a first end opening 21 and a second end opening 22 formed therein. The plurality of microvias 51 electrically connect the first metal layer 1 and the second metal layer 2. The plurality of microvias 51 surround and define a narrow elongated region 52 on the substrate 3. The plurality of lattice-shaped openings 11 are located within the narrow elongated region 52, with the first end opening 21 corresponding to one end of the narrow elongated region 52 and the second end opening 22 corresponding to the other end of the narrow elongated region 52. The first feed conductor 41 is disposed within the first end opening 21. The second feed conductor 42 is disposed within the second end opening 22.

[0031] In the above embodiment, the inner wall of the micro-via hole 51 is plated with a metal material (not shown), whereby the plurality of micro-via holes 51 can be electrically connected to the first metal layer 1 and the second metal layer 2. The portion of the surface of the substrate 3 exposed in the plurality of grid openings 11. The portion of the surface of the substrate 3 exposed in the first end opening 21, on which the first feed conductor 41 is disposed. The portion of the surface of the substrate 3 exposed in the second end opening 22, on which the second feed conductor 42 is disposed.

[0032] In an embodiment, the material of the substrate 3 can be organic material or glass, ceramic. The slot antenna module A can be manufactured by plating, electroplating, exposure development etching and other process steps.

[0033] Referring to Figure 3A In an embodiment, the plurality of grid openings 11 includes a plurality of first grid openings 11A and a plurality of second grid openings 11B, the plurality of first grid openings 11A constitutes a first grid opening unit (a small cluster composed of the plurality of first grid openings 11A close to each other), the plurality of second grid openings 11B constitutes a second grid opening unit (a small cluster composed of the plurality of second grid openings 11B close to each other), the first grid opening unit and the second grid opening unit are arranged along the length direction X of the elongated area.

[0034] Figure 4 To show the detailed structure of each grid opening unit, take the first grid opening unit as an example. Referring to Figure 4 In an embodiment, the first grid opening unit includes a first row r1, a second row r2 and a third row r3, the first row r1 is sandwiched between the second row r2 and the third row r3, the number of the plurality of first grid openings 11A of the first row r1 is greater than the number of the plurality of first grid openings 11A of the second row r2, and the number of the plurality of first grid openings 11A of the first row r1 is greater than the number of the plurality of first grid openings 11A of the third row r3. The above disclosure does not limit the present application, in another embodiment, the arrangement of the above grid openings can be changed as needed.

[0035] Figure 5A To show the partial enlarged view of the front of the slot antenna module of the embodiment of the present application. Figure 5B To show the partial enlarged view of the back of the slot antenna module of the embodiment of the present application. Refer to Figure 5A 、 Figure 5BIn an embodiment, the slot antenna module further comprises a plurality of through holes 53, the plurality of through holes 53 respectively surround one end of the long and narrow region 52 and the other end of the long and narrow region 52, one end of the aforementioned flexible waveguide is fixedly connected to the plurality of through holes 53.

[0036] The radar device of the embodiment of the present application omits the existing rotating motor, is matched with various multi-faceted 3D mechanisms (tetrahedron / triangle pyramid / tetragonal pyramid / half football surface / football surface / polyhedron), assembles the slot antenna module in the face wall, can be embedded or placed in the outer layer, is not limited to up and down or side, can adjust the angle of radiation according to the needs. Each slot antenna module can be independently controlled, and the direction and angle can be designed according to product application. At the same time, synchronous rapid refreshing radar image map can be achieved by controlling the module and matching software, and the front and rear and left and right long-distance radars can be saved on the marine and vehicle, and multiple advantages such as power saving, economy, accuracy and sensitivity are achieved.

[0037] Although the present application has been disclosed with the above-mentioned specific preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present application, therefore the protection scope of the present application shall be defined by the appended claims.

[0038]

Symbol Description

[0039] R1: radar device

[0040] R2: radar device

[0041] C: control module

[0042] A: slot antenna module

[0043] S1: device cover

[0044] S2: device cover

[0045] L: flexible waveguide

[0046] 1: first metal layer

[0047] 11: lattice-shaped opening

[0048] 11A: first lattice-shaped opening

[0049] 11B: second lattice-shaped opening

[0050] 2: second metal layer

[0051] 21: first end opening

[0052] 22: second end opening

[0053] 3: substrate

[0054] 31: first surface

[0055] 32: second surface

[0056] 41: first feed conductor

[0057] 42: second feed conductor

[0058] 51: microvia

[0059] 52: elongated region

[0060] 53: via

[0061] X: length direction

[0062] r1: first row

[0063] r2: second row

[0064] r3: third row

Claims

1. A radar device, characterized in that: include: Control module; as well as A plurality of slot-type antenna modules are respectively coupled to the control module, wherein the plurality of slot-type antenna modules are respectively oriented in different directions, and each slot-type antenna module is suitable for emitting a radio wave beam and for receiving reflected radio waves, and the reflected radio waves are transmitted to the control module for analysis and processing.

2. The radar device according to claim 1, wherein The device further comprises a device cover, wherein the device cover covers the control module and the plurality of slot-type antenna modules, and the plurality of slot-type antenna modules are respectively arranged on the inner surface of the device cover.

3. The radar device according to claim 2, characterized in that The device cover is in the shape of a tetrahedron, a triangular pyramid, a quadrangular pyramid, a semi-spherical body or a soccer ball. The device cover includes a plurality of cover planes, and each cover plane is provided with a single slot-type antenna module.

4. The radar device according to claim 1, wherein It also includes a plurality of flexible waveguide tubes, one end of each flexible waveguide tube is connected to the corresponding slot antenna module, and the other end thereof is connected to the control module.

5. The radar device according to claim 1, wherein The radar device does not include a rotary motor.

6. The radar device according to any one of claims 1 to 5, characterized in that: The slot antenna module includes: substrate; a first metal layer formed on the first surface of the substrate, wherein the first metal layer has a plurality of grid-shaped openings; a second metal layer formed on a second surface of the substrate, the second surface being opposite to the first surface, the second metal layer being formed with a first end opening and a second end opening; a plurality of microvias, wherein the plurality of microvias electrically connect the first metal layer and the second metal layer, the plurality of microvias surrounding and defining a narrow elongated region on the substrate, the plurality of lattice-shaped openings being located within the narrow elongated region, the first end opening corresponding to one end of the narrow elongated region, and the second end opening corresponding to the other end of the narrow elongated region; A first feed conductor is disposed within the first end opening; and The second feeding conductor is disposed in the second end opening.

7. The radar device according to claim 6, characterized in that The multiple lattice openings include multiple first lattice openings and multiple second lattice openings, the multiple first lattice openings constitute a first lattice opening unit, the multiple second lattice openings constitute a second lattice opening unit, and the first lattice opening unit and the second lattice opening unit are arranged along the length direction of the narrow and long area.

8. The radar device according to claim 7, characterized in that The first grid-shaped opening unit includes a first row, a second row and a third row, the first row is sandwiched between the second row and the third row, the number of the multiple first grid-shaped openings in the first row is greater than the number of the multiple first grid-shaped openings in the second row, and the number of the multiple first grid-shaped openings in the first row is greater than the number of the multiple first grid-shaped openings in the third row.

9. The radar device according to claim 7, characterized in that The slot antenna module further includes a plurality of through holes, and the plurality of through holes respectively surround one end of the narrow and long area and the other end of the narrow and long area.

10. A slot-type antenna module, characterized in that: include: substrate; a first metal layer formed on the first surface of the substrate, wherein the first metal layer has a plurality of grid-shaped openings; a second metal layer formed on a second surface of the substrate, the second surface being opposite to the first surface, the second metal layer being formed with a first end opening and a second end opening; a plurality of microvias, wherein the plurality of microvias electrically connect the first metal layer and the second metal layer, the plurality of microvias surrounding and defining a narrow elongated region on the substrate, the plurality of lattice-shaped openings being located within the narrow elongated region, the first end opening corresponding to one end of the narrow elongated region, and the second end opening corresponding to the other end of the narrow elongated region; A first feed conductor is disposed within the first end opening; and A second feed conductor is provided in the second end opening, Among them, the multiple grid-shaped openings include multiple first grid-shaped openings and multiple second grid-shaped openings, the multiple first grid-shaped openings constitute a first grid-shaped opening unit, the multiple second grid-shaped openings constitute a second grid-shaped opening unit, and the first grid-shaped opening unit and the second grid-shaped opening unit are arranged along the length direction of the narrow and long area.

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