CN220856921U - Dipole antenna device - Google Patents
Dipole antenna device Download PDFInfo
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- CN220856921U CN220856921U CN202322696721.8U CN202322696721U CN220856921U CN 220856921 U CN220856921 U CN 220856921U CN 202322696721 U CN202322696721 U CN 202322696721U CN 220856921 U CN220856921 U CN 220856921U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 56
- 230000005855 radiation Effects 0.000 claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 46
- 239000004020 conductor Substances 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
A dipole antenna device includes a substrate, a transmission unit, first to fourth radiation units, and first and second grounding units. The substrate comprises a first surface and a second surface, and is provided with holes. The transmission unit is arranged on the first surface. The first and second radiating units are arranged on the first surface, connected with the transmission unit and extending along the first direction. The first grounding unit is arranged on the second surface. The third and fourth radiating elements are arranged on the second surface, connected with the first grounding element and extend along the direction opposite to the first direction. The second grounding unit is provided with a first part arranged on the first surface and a second part arranged on the second surface, wherein the first part is connected with the transmission unit and extends along a first direction, the second part is connected with the first grounding unit and extends along the first direction, and the first part and the second part are connected through a hole of the substrate.
Description
Technical Field
The present utility model relates to a dipole antenna device, and more particularly, to a dipole antenna device with reduced risk of lightning strike.
Background
Dipole antennas (doublet) are the earliest, simplest, most widely used type of antennas in radio communications. The device consists of symmetrically arranged conductors, and two ends of the conductors, which are close to each other, are respectively connected with a feeder. When used as a transmitting antenna, the electrical signal is fed into the conductor from the center of the antenna; when used as a receiving antenna, the received signal is also obtained from the conductor at the center of the antenna. A common dipole antenna consists of two coaxial straight wires, and the radiation field generated by such an antenna at a distance is axisymmetric and can be strictly solved in theory. Dipole antennas are resonant antennas and theoretical analysis shows that the current distribution within an elongated dipole antenna has the form of a standing wave whose wavelength is exactly the wavelength of the electromagnetic wave generated or received by the antenna.
However, there is a risk of lightning striking when the dipole antenna is placed outdoors.
Disclosure of utility model
In order to solve the above-mentioned problems, the present utility model provides a dipole antenna device comprising a substrate, a transmission unit, a first radiation unit, a second radiation unit, a first grounding unit, a third radiation unit, a fourth radiation unit and a second grounding unit. The substrate comprises a first surface and a second surface opposite to the first surface, and is provided with a hole. The transmission unit is arranged on the first surface of the substrate. The first radiation unit is arranged on the first surface of the substrate, is connected with the transmission unit in a conductive mode and extends from the transmission unit along a first direction. The second radiation unit is arranged on the first surface of the substrate, is connected with the transmission unit in a conductive way and extends from the transmission unit along the first direction; the first grounding unit is arranged on the second surface of the substrate. The third radiating unit is arranged on the second surface of the substrate, is connected with the first grounding unit in a conductive mode and extends from the first grounding unit along the direction opposite to the first direction. The fourth radiating element is arranged on the second surface of the substrate, is connected with the first grounding element in a conductive mode and extends from the first grounding element along the direction opposite to the first direction. The second grounding unit is provided with a first part arranged on the first surface of the substrate and a second part arranged on the second surface of the substrate, wherein the first part is in conductive connection with the transmission unit and extends from the transmission unit along a first direction, the second part is in conductive connection with the first grounding unit and extends from the first grounding unit along the first direction, and the first part and the second part are connected through holes of the substrate.
Through the arrangement of the additional grounding units along the same direction as the first radiating unit and the second radiating unit, the dipole antenna capable of reducing the risk of lightning stroke can be provided.
The foregoing description of the utility model and the following description of embodiments are presented to illustrate and explain the principles of the utility model and to provide a further explanation of the utility model as claimed.
Drawings
Fig. 1 is a top view of a dipole antenna device according to an embodiment of the present utility model.
Fig. 2 is a bottom view of a dipole antenna device according to an embodiment of the utility model.
Fig. 3 is a perspective view of a dipole antenna device according to an embodiment of the present utility model.
Fig. 4 is a dimension diagram of a dipole antenna device according to an embodiment of the present utility model.
Fig. 5 is a Voltage Standing Wave Ratio (VSWR) and maximum Gain (Peak Gain) composite characteristic diagram of a dipole antenna device according to an embodiment of the present utility model.
Detailed Description
The detailed features and advantages of the present utility model will be readily apparent to those skilled in the art from the following detailed description, claims, and drawings that are provided herein. The following examples further illustrate the aspects of the utility model in detail, but are not intended to limit the scope of the utility model in any way.
Referring to fig. 1 to 3, fig. 1 to 3 are bottom, top and perspective views of a dipole antenna device according to an embodiment of the present utility model. Although fig. 1 and 2 are referred to as a bottom view and a top view, respectively, they are merely drawings showing that the two drawings are based on two opposite viewing angles, and fig. 1 and 2 may be referred to as a top view and a bottom view, respectively.
As shown in fig. 1 to 3, the dipole antenna device 1 includes a housing 2, a substrate 3, a transmission unit 4, a first radiation unit 5, a second radiation unit 6, a first grounding unit 7, a third radiation unit 8, a fourth radiation unit 9, and a second grounding unit 10.
The housing 2 is made of an insulating material such as plastic. The present utility model is not limited to the shape and size of the housing 2, and the housing 2 is a selectively provided component. In another embodiment, the dipole antenna device 1 may only include the substrate 3, the transmission unit 4, the first radiation unit 5, the second radiation unit 6, the first grounding unit 7, the third radiation unit 8, the fourth radiation unit 9, and the second grounding unit 10. The substrate 3 is made of an insulating material such as glass fiber, for example, and is provided inside the housing 2. The substrate 3 has a first surface 31 and a second surface 32 and has a hole 311, wherein the hole 311 penetrates the first surface 31 and the second surface 32.
The transmission unit 4 is made of a conductive material, such as copper, and is disposed on the first surface 31 of the substrate 3. Specifically, the transmission unit 4 has a T-shaped structure having a first portion 41 extending in a first direction D1 and a second portion 42 extending in a second direction D2 substantially perpendicular to the first direction D1.
The first radiation unit 5, for example, a conductive material such as copper, is disposed on the first surface 31 of the substrate 3, is electrically connected to the transmission unit 4, and extends from the transmission unit 4 along the first direction D1. In particular, the first radiating element 5 is electrically conductively connected to one end of the second portion 42 of the transmission element 4.
The second radiation unit 6, for example, a conductive material such as copper, is disposed on the first surface 31 of the substrate 3, is electrically connected to the transmission unit 4, and extends from the transmission unit 4 along the first direction D1. In particular, the second radiating element 6 is electrically conductively connected to the other end of the second portion 42 of the transmission element 4.
The first grounding unit 7 is made of a conductive material such as copper, for example, and is disposed on the second surface 32 of the substrate 3. The first grounding unit 7 comprises a T-shaped structure having a first portion 71 and a second portion 72, the first portion 71 of the T-shaped structure extending along a first direction D1 and the second portion 72 extending along a second direction D2 substantially perpendicular to the first direction D1, and a main grounding structure 73. The main ground structure 73 has opposite sides, one of which is conductively connected to the other end of the first portion 71 of the T-shaped structure, and the other of which is for grounding.
The third radiating element 8, for example, a conductive material such as copper, is disposed on the second surface 32 of the substrate 3, is electrically connected to the first grounding element 7, and extends from the first grounding element 7 in a direction opposite to the first direction D1. Specifically, the third radiating element 8 is electrically conductively connected to one end of the second portion 72 of the first grounding element 7.
The fourth radiating element 9, for example, a conductive material such as copper, is disposed on the second surface 32 of the substrate 3, is electrically connected to the first grounding element 7, and extends from the first grounding element 7 in a direction opposite to the first direction D1. Specifically, the fourth radiating element 9 is electrically conductively connected to the other end of the second portion 72 of the first grounding element 7.
The first radiating element 5 and the third radiating element 8 may be radiating elements of one set of dipole antennas and the second radiating element 6 and the fourth radiating element 9 may be radiating elements of another set of dipole antennas.
Further, the projection of the first radiation unit 5 in the third direction D3 at least partially overlaps the projection of the third radiation unit 8 in the third direction D3, the projection of the second radiation unit 6 in the third direction D3 at least partially overlaps the projection of the fourth radiation unit 9 in the third direction D3, and the third direction D3 is the setting direction of the first radiation unit 5 relative to the substrate 3.
The second grounding unit 10, for example, a conductive material such as copper, has a first portion 101 disposed on the first surface 31 of the substrate 3 and a second portion 102 disposed on the second surface 32 of the substrate 3, wherein the first portion 101 is electrically connected to the transmission unit 4 and extends from the transmission unit 4 along the first direction D1, the second portion 102 is electrically connected to the first grounding unit 7 and extends from the first grounding unit 7 along the first direction D1, and the first portion 101 and the second portion 102 are connected through the hole 311 of the substrate. Specifically, the second portion 102 of the second grounding unit 10 is electrically connected to one end of the T-shaped structure first portion 71 of the first grounding unit 7.
One end of the first portion 41 of the T-shaped structure of the transmission unit 4 is electrically connected to the first portion 101 of the second grounding unit 10, the other end of the first portion 41 of the T-shaped structure of the transmission unit 4 is used for receiving the feed signal, and two ends of the second portion 42 of the T-shaped structure of the transmission unit 4 are electrically connected to the first radiating unit 5 and the second radiating unit 6, respectively.
Furthermore, the third radiating element 8 and the first part 71 of the T-shaped structure of the first grounding element 7 have a first spacing 11 therebetween, the third radiating element 8 and the first part 41 of the T-shaped structure of the transmission element 4 likewise have a first spacing 11 between projections of the second face 32 of the substrate 3 in the third direction D3, the fourth radiating element 9 and the first part 71 of the T-shaped structure of the first grounding element 7 likewise have a second spacing 12 between projections of the fourth radiating element 9 and the first part 41 of the T-shaped structure of the transmission element 4 likewise have a second spacing 12 between projections of the first part 41 of the T-shaped structure of the transmission element 4 in the third direction D3, and the first spacing 11 and the second spacing 12 are axisymmetric to each other with respect to the first part 71 of the T-shaped structure of the first grounding element 7. Further, the first space 11 and the second space 12 may have the same width in the second direction D2.
Further, the projection of the T-shaped structure of the transmission unit 4 in the third direction D3 may at least partially overlap the projection of the T-shaped structure of the first grounding unit 7 in the third direction D3, and the third direction D3 is the setting direction of the transmission unit 4 relative to the substrate 3. In addition, the projection of the first part 41 of the T-shaped structure of the transmission unit 4 in the third direction may completely overlap the projection of the first part 41 of the T-shaped structure of the first ground unit 7 in the third direction D3.
It should be further noted that fig. 1 to 3 exemplarily show that the first direction D1 and the second direction D2 each point in a single direction, however, in other embodiments, the first direction D1 may include a first angle range, and the second direction D2 includes a second angle range. In other words, the directions within the first angle range can be regarded as the first direction D1, and the directions within the second angle range can be regarded as the second direction D2. The direction bisecting the first angular range is substantially perpendicular to the direction bisecting the second angular range. While the third direction D3 is also exemplified as the arrangement direction of the transmission unit 4 with respect to the substrate 3, in other embodiments the third direction D3 may also be the arrangement direction of the first grounding unit 7 with respect to the substrate 3.
For further explanation of the component dimensions of the dipole antenna device, please refer to fig. 1-4, wherein fig. 4 is a diagram illustrating the dimensions of the dipole antenna device according to an embodiment of the present utility model.
As shown in fig. 4, the second grounding unit 10 has a width W1 in the second direction D2, the first portion 41 of the transmission unit 4 and the first portion 71 of the first grounding unit 7 have a width W2 in the second direction D2 and the second portion 42 and the second portion 72 have a length L1 in the second direction D2, the first radiation unit 5, the second radiation unit 6, the third radiation unit 8, and the fourth radiation unit 9 each have a width W3 in the second direction D2 and a length L2 in the first direction D1, and a side of the first radiation unit 5 connected to the third radiation unit 8 and a side of the second radiation unit 6 connected to the fourth radiation unit 9 have a length L5 along the first direction, the main grounding structure 73 of the first grounding unit 7 has a width W4 in the first direction D1 and a length L3 in the second direction D2, and the substrate 3 has a width W5 in the second direction D2 and a length L4 in the first direction D1.
Specifically, the widths of the second portions 42 and 72 of the T-shaped structures of the transmission unit 4 and the first grounding unit 7 in the first direction D1 are determined by the impedances of the first radiation unit 5, the second radiation unit 6, the third radiation unit 8, and the fourth radiation unit 9 and the impedance of the transmission unit 4. The width of the second portions 42 and 72 of the respective T-shaped structures of the transmission unit 4 and the first grounding unit 7 along the first direction should be smaller than W3 and W1 is smaller than the width of the second portions 42 and 72 of the respective T-shaped structures of the transmission unit 4 and the first grounding unit 7 along the first direction D1.
More specifically, the aspect ratio of length L1 to width W1 may be about 11:1, the width ratio of width W2 to width W1 may be about 2:1, the aspect ratio of length L3 to width W1 may be about 30:1, the width ratio of width W3 to width W1 may be about 2:1, and the aspect ratio of width W3 to L2 may be about 1:10.25.
As an example, the width W1 of the second grounding unit 10 may be 0.5mm, the width W2 of the first portion 41 of the transmission unit 4 and the first portion 71 of the first grounding unit 7 in the second direction D2 may be 1mm and the length L1 of the second portion 42 and the second portion 72 in the second direction D2 may be 5.5mm, the width W3 of each of the first radiation unit 5, the second radiation unit 6, the third radiation unit 8, and the fourth radiation unit 9 in the second direction D2 may be 1mm and the length L2 in the first direction D1 may be 10.25mm and the length L5 of the side of the first radiation unit 5 connected to the third radiation unit 8 and the side of the second radiation unit 6 connected to the fourth radiation unit 9 may be 20mm, the width W4 of the main grounding structure 73 of the first grounding unit 7 in the first direction D1 may be 5.3mm and the length L3 of the first grounding structure 73 in the second direction D2 may be 15mm and the length L3 in the first direction 33mm may be 4 mm. The above-mentioned dimension values are not intended to limit the present utility model, and those skilled in the art can adjust the parameter dimensions as required, however, the dipole antenna device 1 can have a better signal transmission effect through the above-mentioned dimension values.
Referring to fig. 5, fig. 5 is a graph of Voltage Standing Wave Ratio (VSWR) versus maximum Gain (Peak Gain) obtained by testing a dipole antenna device manufactured by the above-mentioned dimensions, for example, using a network analyzer. As can be seen from fig. 5, the VSWR of the dipole antenna device manufactured by the above dimensions in the working range of 5.1-5.9 GHz can be below 2.0:1, the maximum gain of the dipole antenna device can reach 2dBi, the maximum gain of the H-plane can reach 1.24dBi, the maximum gain of the V-plane can reach 2.45dBi, the 3dB half-power beam width of the H-plane can reach 360 degrees, and the 3dB half-power beam width of the V-plane can reach 70±10 degrees. The detailed data are presented in tables 1 and 2 below.
TABLE 1
TABLE 2
Through the arrangement of the additional grounding units along the same direction as the first radiating unit and the second radiating unit, the dipole antenna device for reducing the risk of lightning stroke can be provided.
[ Symbolic description ]
1 Dipole antenna device
2, Outer casing
3 Substrate
31 First side
32 Second side
311 Holes
4 Transmission unit
71,41 First part
72,42 Second portion
5 First radiating element
6 Second radiating element
7 First grounding unit
8 Third radiating element
9 Fourth radiating element
10 Second grounding unit
11 First interval
12 Second interval
101 First part
102 Second part
W1, W2, W3, W4, W5: width
L1, L2, L3, L4, L5: length
D1, D2, D3: direction.
Claims (10)
1. A dipole antenna device, comprising:
A substrate including a first face and a second face opposite to the first face, and having a hole;
The transmission unit is arranged on the first surface of the substrate;
the first radiation unit is arranged on the first surface of the substrate, is in conductive connection with the transmission unit and extends from the transmission unit along a first direction;
the second radiation unit is arranged on the first surface of the substrate, is in conductive connection with the transmission unit and extends from the transmission unit along the first direction;
the first grounding unit is arranged on the second surface of the substrate;
The third radiation unit is arranged on the second surface of the substrate, is in conductive connection with the first grounding unit and extends from the first grounding unit along the direction opposite to the first direction;
A fourth radiating element disposed on the second surface of the substrate, electrically connected to the first grounding element, and extending from the first grounding element along the direction opposite to the first direction; and
The second grounding unit is provided with a first part arranged on the first surface of the substrate and a second part arranged on the second surface of the substrate, wherein the first part is in conductive connection with the transmission unit and extends from the transmission unit along the first direction, the second part is in conductive connection with the first grounding unit and extends from the first grounding unit along the first direction, and the first part and the second part are connected through the hole of the substrate.
2. The dipole antenna device as recited in claim 1, wherein the transmission element and the first ground element each have a T-shaped structure, wherein the T-shaped structure has a first portion extending along the first direction and a second portion extending along a second direction substantially perpendicular to the first direction.
3. The dipole antenna device as recited in claim 2, wherein the width of the second portion of the T-shaped structure of each of the transmission element and the first ground element in the first direction is determined by the impedances of the first radiating element, the second radiating element, the third radiating element and the fourth radiating element and the impedance of the transmission element.
4. The dipole antenna device as recited in claim 2, wherein a width of the second portion of the T-shaped structure of each of the transmission element and the first ground element along the first direction is less than a width of each of the first radiating element, the second radiating element, the third radiating element, and the fourth radiating element along the second direction, and wherein a width of the second ground element along the second direction is less than a width of the second portion of the T-shaped structure along the first direction.
5. The dipole antenna device as recited in claim 2, wherein a first space is provided between the third radiating element and the first portion of the T-shaped structure of the first ground element, and a second space is provided between the fourth radiating element and the first portion of the T-shaped structure of the first ground element, and wherein the first space and the second space are axially symmetric with respect to the first portion of the T-shaped structure of the first ground element.
6. The dipole antenna device as recited in claim 2, wherein a projection of the T-shaped structure of the transmission unit in a third direction at least partially overlaps a projection of the T-shaped structure of the first ground unit in the third direction, and the third direction is a direction in which the transmission unit is disposed with respect to the substrate.
7. The dipole antenna device as recited in claim 6, wherein the projection of the first portion of the T-shaped structure of the transmission element in the third direction completely overlaps the projection of the first portion of the T-shaped structure of the first ground element in the third direction.
8. The dipole antenna device as recited in claim 1, wherein a projection of the first radiating element in a third direction at least partially overlaps a projection of the third radiating element in the third direction, wherein a projection of the second radiating element in the third direction at least partially overlaps a projection of the fourth radiating element in the third direction, and wherein the third direction is a placement direction of the first radiating element relative to the substrate.
9. The dipole antenna device as recited in claim 1, wherein the transmission unit comprises a T-shaped structure having a first portion extending along the first direction and a second portion extending along a second direction substantially perpendicular to the first direction, one end of the first portion of the T-shaped structure being electrically connected to the first portion of the second ground unit, the other end of the first portion of the T-shaped structure being for receiving a feed signal, and two ends of the second portion of the T-shaped structure being electrically connected to the first radiating element and the second radiating element, respectively.
10. The dipole antenna device as recited in claim 1, wherein the first ground element comprises a T-shaped structure having a first portion extending along the first direction and a second portion extending along a second direction substantially perpendicular to the first direction, one end of the first portion of the T-shaped structure being conductively connected to the second portion of the second ground element, two ends of the second portion of the T-shaped structure being conductively connected to the third and fourth radiating elements, respectively, and a main ground structure having opposite sides, one of the two sides being conductively connected to the other end of the first portion of the T-shaped structure, and the other of the two sides being for grounding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111211267U TWM639654U (en) | 2022-10-17 | 2022-10-17 | Array dipole antenna device |
| TW111211267 | 2022-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220856921U true CN220856921U (en) | 2024-04-26 |
Family
ID=86943788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322696721.8U Active CN220856921U (en) | 2022-10-17 | 2023-10-09 | Dipole antenna device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN220856921U (en) |
| TW (1) | TWM639654U (en) |
-
2022
- 2022-10-17 TW TW111211267U patent/TWM639654U/en unknown
-
2023
- 2023-10-09 CN CN202322696721.8U patent/CN220856921U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TWM639654U (en) | 2023-04-11 |
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