Lightweight composite dielectric integrated antenna

Abstract

The utility model belongs to antenna technical field especially relates to a kind of lightweight composite medium integrated antenna, including dielectric plate and the first metal radiating unit and second metal radiating unit of fixed connection on dielectric plate, first metal radiating unit is located on the upper surface of dielectric plate, second metal radiating unit is located on the lower surface of dielectric plate, dielectric plate is provided with several first feed holes and several second feed holes, each first feed hole and each second feed hole are all through first metal radiating unit, second metal radiating unit and dielectric plate, first metal radiating unit and second metal radiating unit are respectively provided with second demetallization avoidance ring and first demetallization avoidance ring, first demetallization avoidance ring is set around first feed hole, second demetallization avoidance ring is set around first feed hole, dielectric plate bottom is provided with assembly, assembly is set around along the bottom edge of dielectric plate, by above-mentioned structure setting, the weight of antenna is maximized to reduce.

Description

Technical Field

[0001] This utility model belongs to the field of antenna technology, and in particular relates to a lightweight composite dielectric integrated antenna. Background Technology

[0002] With the development of global satellite navigation systems, there are more and more navigation systems, and each system uses more and more frequency bands. Taking the BeiDou Navigation Satellite System as an example, BeiDou high-precision positioning and BeiDou short message reception and transmission both require independent frequencies. The system needs to perform high-precision positioning and also meet the requirements for short message transmission and reception.

[0003] Traditional stacked GNSS technology requires one layer to be stacked for each frequency, resulting in increasingly larger antennas, more layers, greater thickness, and higher costs, making it difficult to meet current requirements. For example, a miniaturized combined antenna (application number CN112290205A) includes a GNSS antenna comprising: a first dielectric layer; a first radiating patch attached to the upper surface of the first dielectric layer, the first radiating patch having a feed point to form either a first radiating element or a second radiating element; a feed pin electrically connected to the feed point; a second dielectric layer disposed on the lower surface of the first dielectric layer; and a second radiating patch disposed between the lower surface of the first dielectric layer and the upper surface of the second dielectric layer. A coupling hole is provided on the upper part, and the feed pin extends from the feed point into the coupling hole. A gap is formed between the inner wall surface of the coupling hole and the feed pin, so that the second radiating patch is coupled to form the first radiating element or the second radiating element; and a reference ground is attached to the lower surface of the second layer of dielectric, and the reference ground is electrically connected to the first radiating patch and the second radiating patch. The reference ground is used for grounding to realize the grounding of the first radiating patch and the second radiating patch. However, the antenna mechanism of the prior art has the technical problem that as the more frequency bands used by GNSS are, the more layers are stacked and the thicker it is. The excessive thickness requires a longer output feed pin, and the excessively long output feed pin causes signal loss and interference, resulting in performance degradation, which does not meet the lightweight requirements of the aircraft. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight composite dielectric integrated antenna, which aims to solve the technical problem of excessive weight of the existing integrated antenna.

[0005] To achieve the above objectives, this utility model provides a lightweight composite dielectric integrated antenna, comprising a dielectric substrate and a first metal radiating element and a second metal radiating element fixed to the dielectric substrate. The first metal radiating element is located on the upper surface of the dielectric substrate, and the second metal radiating element is located on the lower surface of the dielectric substrate. The dielectric substrate is provided with a plurality of first feed holes and a plurality of second feed holes, each of the first feed holes and each of the second feed holes penetrating the first metal radiating element, the second metal radiating element, and the dielectric substrate. The first metal radiating element and the second metal radiating element are respectively provided with a second demetallization anti-spacing ring and a first demetallization anti-spacing ring. The first demetallization anti-spacing ring surrounds the first feed hole, and the second demetallization anti-spacing ring surrounds the second feed hole. An assembly is provided at the bottom of the dielectric substrate, and the assembly is arranged around the bottom edge of the dielectric substrate to bridge the gap between the bottom of the dielectric substrate and the mounting surface.

[0006] Preferably, the first metal radiation unit and the second metal radiation unit are both arranged in a centrally symmetrical manner with the center of the first metal radiation unit as the center.

[0007] Preferably, the line connecting the center of the first feed hole and the center of the first metal radiating unit coincides with the line connecting the center of the second feed hole and the center of the first metal radiating unit.

[0008] Preferably, the line connecting the centers of adjacent first feed holes and first metal radiating units is staggered from the line connecting the centers of second feed holes and first metal radiating units.

[0009] Preferably, the distance between each of the first feed holes and the center of the second metal radiation unit is the same, and the included angle between two adjacent first feed holes is set at 90°.

[0010] Preferably, the distance between each of the second feed holes and the center of the first metal radiation unit is the same, and the included angle between two adjacent second feed holes is set at 90°.

[0011] Preferably, the first metal radiating unit is provided with a plurality of power feeding pads, each power feeding pad is respectively arranged around the corresponding second power feeding hole, and the corresponding second demetallization anti-cavity ring is respectively arranged around the corresponding power feeding pad.

[0012] Preferably, the dielectric substrate is provided with a plurality of grounding holes, each of the grounding holes being arranged at intervals around the first metal radiating unit, and the grounding holes being provided with extension branches.

[0013] Preferably, the dielectric substrate is provided with a central through hole, which passes through the center of the first metal radiating unit and the second metal radiating unit, and each of the first power feeding holes and each of the second power feeding holes is arranged around the central through hole.

[0014] The lightweight composite dielectric integrated antenna provided in this embodiment of the utility model has at least one of the following technical effects:

[0015] This invention discloses a lightweight composite dielectric integrated antenna, which is composed of a dielectric substrate and a first metal radiating element and a second metal radiating element fixed to the dielectric substrate. An assembly is provided at the bottom of the dielectric substrate to raise the distance between the dielectric substrate and the mounted circuit PCB. This assembly can be several metal or non-metal pins of a certain height to suspend the dielectric substrate on the circuit PCB, or it can have a certain gap between the lower surface of the dielectric substrate and the circuit PCB through a perforation or other integrally formed structure. The first metal radiating element and the second metal radiating element are respectively fixed to the upper and lower surfaces of the dielectric substrate. The combination of the first metal radiating element and the first dielectric substrate forms a first broadband signal, and the air medium between the second metal radiating element and the circuit PCB forms a second broadband signal. Multiple first and second feed holes are provided on the dielectric substrate, penetrating the first metal radiating element, the second metal radiating element, and the dielectric substrate. Through the above structural configuration, both broadband signals are output through the first and second feed holes, minimizing the weight of the antenna. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of a lightweight composite dielectric integrated antenna (style 1) provided for an embodiment of this utility model.

[0018] Figure 2 The image shows a bottom view of a lightweight composite dielectric integrated antenna (style 1) provided for an embodiment of this utility model.

[0019] Figure 3 This is a top view of a lightweight composite dielectric integrated antenna (style 2) provided for an embodiment of this utility model.

[0020] Figure 4The image shows a bottom view of a lightweight composite dielectric integrated antenna (style 2) provided for an embodiment of this utility model.

[0021] Figure 5 This is a top view of a lightweight composite dielectric integrated antenna (style 3) provided for an embodiment of this utility model.

[0022] Figure 6 The image shows a bottom view of a lightweight composite dielectric integrated antenna (style 3) provided for an embodiment of this utility model.

[0023] Figure 7 This is a top view of a lightweight composite dielectric integrated antenna (style four) provided for an embodiment of this utility model.

[0024] Figure 8 The image shows a bottom view of a lightweight composite dielectric integrated antenna (style four) provided for an embodiment of this utility model.

[0025] The following are the labeling elements in the figure:

[0026] 10—Dielectric board; 11—First feed hole; 12—Second feed hole

[0027] 13—Center through hole; 14—Grounding hole; 15—Pin.

[0028] 16—Antenna ground; 20—First metallic radiating element; 21—Second demetallized anti-slip ring

[0029] 22—Power feed pad; 30—Second metal radiation unit; 31—First demetallization anti-cavitation ring. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the appendix. Figures 1-8 As shown, the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0034] In one embodiment of this utility model, such as Figures 1-8 As shown, a lightweight composite dielectric integrated antenna is provided, including a dielectric substrate 10 and a first metal radiating element 20 and a second metal radiating element 30 fixed on the dielectric substrate 10. The first metal radiating element 20 is located on the upper surface of the dielectric substrate 10, and the second metal radiating element 30 is located on the lower surface of the dielectric substrate 10. The dielectric substrate 10 is provided with a plurality of first feed holes 11 and a plurality of second feed holes 12, each having 1 to 4 first feed holes 11 and 4 second feed holes 12. Each first feed hole 11 and each second feed hole 12 penetrates the first metal radiating element 20, the second metal radiating element 30, and the dielectric substrate 10. The first metal radiating element 20... A second demetallization clearance ring 21 and a first demetallization clearance ring 31 are respectively provided on the second metal radiation unit 30. The first demetallization clearance ring 31 is arranged around the first feed hole 11, and the second demetallization clearance ring 21 is arranged around the second feed hole 12. An assembly is provided at the bottom of the dielectric board 10. The assembly can be a number of metal or non-metal pins 15 with a certain height to suspend the dielectric board 10 on the circuit PCB board, or it can be a hollow or other integrally formed structure on the lower surface of the dielectric board 10. The assembly is arranged around the bottom edge of the dielectric board 10 to suspend the gap between the bottom of the dielectric board 10 and the mounting surface.

[0035] The first metal radiating unit 20 and the second metal radiating unit 30 are both centrally symmetrically arranged with the center of the first metal radiating unit 20 as the center. The line connecting the center of the first feed hole 11 and the center of the first metal radiating unit 20 coincides with the line connecting the center of the second feed hole 12 and the center of the first metal radiating unit 20. The line connecting the centers of adjacent first feed holes 11 and the first metal radiating unit 20 is staggered from the line connecting the centers of adjacent second feed holes 12 and the first metal radiating unit 20.

[0036] like Figure 1 As shown, the mounting assembly uses metal or non-metal pins 15 or mounting columns integrally formed with the dielectric board 10 to mount the dielectric board 10 on the circuit PCB, so that there is a certain height gap between the dielectric board 10, the first metal radiation unit 20 and the second metal radiation unit 30 and the circuit PCB. The air in the gap is the dielectric of the second metal radiation unit 30.

[0037] like Figure 1 As shown, the pin 15 is integrally formed on the medium plate 10, and the pin 15 is metallized or non-metallized.

[0038] In another embodiment of this utility model, such as Figures 3-8 As shown, the assembly adopts a cover-shaped structure with a hollowed-out lower surface of the dielectric plate 10. The annular bottom is the antenna ground 16. The second metal radiating unit 30 is fixed to the lower surface of the hollowed-out space. The air in the hollowed-out space of the dielectric plate 10 is the dielectric of the second metal radiating unit 30.

[0039] like Figures 1-8 As shown, the signal of the first metal radiation unit 20 is output to the PCB through the first feed hole 11 and the feed pin, forming the first broadband composite signal.

[0040] like Figures 1-8 As shown, the signal of the second metal radiation unit 30 is output to the PCB through the metallized second feed hole 12 and the feed pin on the feed pad, forming a second broadband composite signal.

[0041] like Figures 1-8 As shown, the first metal radiation unit 20 and the second metal radiation unit 30 are both arranged in a centrally symmetrical manner with the center of the first metal radiation unit 20 as the center.

[0042] like Figures 1-8 As shown, the distance between each first feed hole 11 and the center of the first metal radiation unit 20 is the same, and the included angle between two adjacent first feed holes 11 is set at 90°.

[0043] like Figure 2 , 4 6 and Figure 8As shown, the second metal radiating unit 30 is provided with a plurality of first demetallization clearance rings 31, each of which surrounds each first feed hole 11. The second metal radiating unit 30 is not electrically connected to the first feed hole 11. The signal of the second metal radiating unit 30 is coupled with the signal of the first metal radiating unit 20. The hybrid broadband signal formed by the coupling is output to the PCB through the feed pin of the first feed hole 11 soldered on the first metal radiating unit 20.

[0044] like Figure 1 , 3 5 and Figure 7 As shown, the first metal radiation unit 20 is provided with a plurality of second demetallization anti-cavity rings 21, and each second demetallization anti-cavity ring 21 is arranged around each second feed hole 12.

[0045] like Figure 1 , 3 5 and Figure 7 As shown, a power feeding pad 22 is correspondingly provided on the first metal radiating unit 20. The power feeding pad 22 is respectively arranged around the corresponding second power feeding hole 12, and the corresponding second demetallization clearance ring 21 is respectively arranged around the corresponding power feeding pad 22. The power feeding pad 22 is connected to the second metallized radiating unit 30 through the metallized second power feeding hole 12. The second coupled wideband signal formed by the second metal radiating unit and the first metal radiating unit passes through the metallized second power feeding hole and is output to the circuit PCB through the power feeding pins soldered to the power feeding pad 22.

[0046] The second power feeding hole 12 is metallized so that the power feeding pad 22 is connected to the second metal radiation unit 20 through the metallized second power feeding hole 12, or the power feeding pin installed on the second power feeding hole 12 is electrically connected to the second metal radiation unit 20 by soldering or other means.

[0047] like Figures 1-8 As shown, a plurality of grounding holes 14 are provided on the dielectric substrate 10, and each grounding hole 14 is arranged at intervals around the first metal radiating unit 20. The grounding holes 14 are provided with extension branches, and other communication antennas are arranged around the first metal radiating unit 20 to solve the problem of integrated design of antennas for more frequency bands.

[0048] like Figures 1-8 As shown, a central through hole 13 is provided on the dielectric plate 10. The central through hole 13 passes through the center of the first metal radiation unit 20 and the second metal radiation unit 30, and each power supply hole 11 is arranged around the central through hole 13.

[0049] This utility model discloses a lightweight composite dielectric integrated antenna, which is composed of a dielectric substrate 10 and a first metal radiating element 20 and a second metal radiating element 30 fixed on the dielectric substrate 10. The dielectric substrate 10 has an assembly at its bottom to raise the distance between the dielectric substrate 10 and the mounted circuit PCB. This assembly can be a plurality of metal or non-metal pins 15 of a certain height to suspend the dielectric substrate 10 on the circuit PCB, or it can have a perforated or other integrally formed structure on the lower surface of the dielectric substrate 10 to create a certain gap between the lower surface of the dielectric substrate 10 and the circuit PCB, allowing the first metal radiating element 20 to be mounted on the PCB. The first metal radiating unit 20 and the second metal radiating unit 30 are respectively fixed to the upper and lower surfaces of the dielectric substrate 10. The combination of the first metal radiating unit 20 and the first dielectric substrate 10 forms the first broadband signal, and the air medium between the second metal radiating unit 30 and the circuit PCB forms the second broadband signal. The dielectric substrate 10 is provided with a plurality of first feed holes 11 and a plurality of second feed holes 12 penetrating the first metal radiating unit 20, the second metal radiating unit 30 and the dielectric substrate 10. With the above structure, both broadband signals are output through the first feed holes 11 and the second feed holes 12, which reduces the weight of the antenna to the maximum extent.

[0050] The present invention provides a lightweight composite dielectric integrated antenna in which the dielectric plate 10 can be circular, square or other regular or irregular shapes, the upper and lower surfaces of the dielectric plate 10 can be planar or drum-shaped or concave, the dielectric plate 10 can be a cover-shaped structure with the lower surface hollowed out or other structures formed integrally with the dielectric plate 10 and the overhead pin 15.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight composite dielectric integrated antenna, characterized in that: The device includes a dielectric substrate and a first metal radiating unit and a second metal radiating unit fixed to the dielectric substrate. The first metal radiating unit is located on the upper surface of the dielectric substrate, and the second metal radiating unit is located on the lower surface of the dielectric substrate. The dielectric substrate is provided with a plurality of first feed holes and a plurality of second feed holes. Each of the first and second feed holes penetrates the first metal radiating unit, the second metal radiating unit, and the dielectric substrate. The first and second metal radiating units are respectively provided with a second demetallization clearance ring and a first demetallization clearance ring. The first demetallization clearance ring surrounds the first feed hole, and the second demetallization clearance ring surrounds the second feed hole. An assembly is provided at the bottom of the dielectric substrate. The assembly is arranged around the bottom edge of the dielectric substrate to bridge the gap between the bottom of the dielectric substrate and the mounting surface.

2. The lightweight composite dielectric integrated antenna according to claim 1, characterized in that: Both the first metal radiation unit and the second metal radiation unit are arranged in a centrally symmetrical manner with the center of the first metal radiation unit as the center.

3. The lightweight composite dielectric integrated antenna according to claim 1, characterized in that: The line connecting the center of the first feed hole and the center of the first metal radiating unit is aligned with the line connecting the center of the second feed hole and the center of the first metal radiating unit.

4. The lightweight composite dielectric integrated antenna according to claim 1, characterized in that: The line connecting the centers of the adjacent first feed hole and the first metal radiating unit is staggered from the line connecting the centers of the second feed hole and the first metal radiating unit.

5. A lightweight composite dielectric integrated antenna according to any one of claims 1 to 4, characterized in that: The distance between each of the first feed holes and the center of the second metal radiation unit is the same, and the included angle between two adjacent first feed holes is set at 90°.

6. A lightweight composite dielectric integrated antenna according to any one of claims 1 to 4, characterized in that: The distance between each of the second feed holes and the center of the first metal radiation unit is the same, and the included angle between two adjacent second feed holes is set at 90°.

7. A lightweight composite dielectric integrated antenna according to any one of claims 1 to 4, characterized in that: The first metal radiating unit is provided with a plurality of power feeding pads, each power feeding pad is arranged around the corresponding second power feeding hole, and the corresponding second demetallization anti-cavity ring is arranged around the corresponding power feeding pad.

8. A lightweight composite dielectric integrated antenna according to any one of claims 1 to 4, characterized in that: The dielectric substrate is provided with a plurality of grounding holes, each of which is arranged at intervals around the first metal radiating unit, and each grounding hole is provided with an extension branch.

9. A lightweight composite dielectric integrated antenna according to any one of claims 1 to 4, characterized in that: The dielectric substrate is provided with a central through hole, which passes through the center of the first metal radiating unit and the second metal radiating unit. Each of the first feed holes and each of the second feed holes are arranged around the central through hole.

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