CN110289493B - Wiring structure of microwave induction radar antenna - Google Patents
Wiring structure of microwave induction radar antenna Download PDFInfo
- Publication number
- CN110289493B CN110289493B CN201910657948.7A CN201910657948A CN110289493B CN 110289493 B CN110289493 B CN 110289493B CN 201910657948 A CN201910657948 A CN 201910657948A CN 110289493 B CN110289493 B CN 110289493B
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- Prior art keywords
- copper
- strip
- clad
- directions
- window
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Links
- 230000006698 induction Effects 0.000 title abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000010949 copper Substances 0.000 claims abstract description 28
- 230000001788 irregular Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a wiring structure of a microwave induction radar antenna, wherein a window is arranged at the bottom layer of a double-sided copper clad plate, copper is not coated at the position of the window, an antenna receiving end is etched at the corresponding position of the top layer, and the antenna receiving end is a strip copper coated wire which extends along four directions by taking the central position of the window as a reference. Wherein, the ports of the two strip-shaped copper-clad wires are connected with components, and the ports of the other two strip-shaped copper-clad wires are not connected with any components. According to the antenna circuit, the antenna is divided into the part of the circuit before and after connection and the part affecting the antenna electrical parameters, the electrical property of the part affecting the antenna electrical parameters is adjusted, the circuit layout is not affected, the repeated manufacturing of the circuit board is reduced, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of microwave antenna wiring, in particular to a wiring structure of a microwave induction radar antenna.
Background
The existing microwave induction radar modules all adopt S-shaped loop antennas. The S-shaped loop antenna is shaped like an S on the PCB and is used for transmitting and receiving high-frequency signals, and the width and the length of the S-shaped loop antenna have certain influence on the strength of receiving and transmitting signals and the central frequency point of starting vibration. In the current stage, the microwave induction radar module is arranged on the PCB and the emitter of the high-frequency triode is connected to the back-end circuit through the S-shaped loop antenna, so that the line width and the length of the S-shaped loop antenna are fixed during the manufacture of the PCB, and the electrical parameters of the S-shaped loop antenna cannot be changed.
Thus, in the module debugging stage, debugging is required to be performed through multiple times of PCB proofing, and the steps are complex and time and materials are consumed. During mass production, due to PCB production process errors, antenna electrical parameters are inconsistent, so that a large number of modules are scrapped, and resources are wasted greatly.
Therefore, how to provide a microwave induction radar module capable of being debugged on a PCB is a problem to be solved in the present day.
Disclosure of Invention
The invention aims to provide a wiring structure of a microwave induction radar antenna, which divides a part for connecting a front circuit and a rear circuit and a part for influencing electrical parameters of the antenna on a PCB (printed circuit board), can adjust the electrical parameters of the antenna and saves cost.
The above object of the present invention is achieved by the following technical solutions:
a wiring structure of a microwave induction radar antenna is characterized in that a window is formed in the bottom layer of a double-sided copper-clad plate, copper is not coated at the position of the window, an antenna receiving end is etched at the corresponding position of the top layer, and the antenna receiving end is a strip copper-clad wire which extends along four directions with the central position of the window as a reference.
The invention is further provided with: the strip copper-clad wires extending along the four directions form a cross-shaped structure.
The invention is further provided with: the area occupied by the strip copper clad laminate on the copper clad laminate is smaller than the area of the window.
The invention is further provided with: for the multilayer copper clad laminate, windows are formed in each layer corresponding to the areas formed by the strip copper clad laminate stretching in four directions, and the areas of the windows are larger than the areas formed by the strip copper clad laminate stretching in four directions.
The invention is further provided with: the window is provided with a certain area at the center, and the shape of the window is a regular shape or an irregular shape, and the regular shape comprises at least one of square, rectangle, circle and fan.
The invention is further provided with: the connection part of the strip-shaped copper-clad wires stretching in four directions and the central position is positioned in two directions of the central position, or in three directions of the central position, or in four directions of the central position.
The invention is further provided with: in the strip copper-clad wires extending in four directions, ports of two strip copper-clad wires are connected with components, and ports of the other two strip copper-clad wires are not connected with any components.
The invention is further provided with: the widths of the two strip-shaped copper-clad wires connected with the components are simultaneously smaller than the widths of the other two strip-shaped copper-clad wires not connected with any components.
The invention is further provided with: the reactance and electrical parameters of the other two strip copper-clad wires which are not connected with any component are less than or equal to 150% of the design value.
The invention is further provided with: the other two strip copper wire ports which are not connected with any component are arranged on the circuit board in front of the ports, and no component is arranged.
Compared with the prior art, the invention has the beneficial technical effects that:
1. according to the antenna, the antenna is divided into the part for connecting the front circuit and the rear circuit and the part for influencing the parameters of the antenna electrical appliances, so that the electrical adjustment of the part for influencing the parameters of the antenna electrical appliances is performed, the circuit layout is not influenced, the repeated manufacturing of a circuit board is reduced, and the cost is saved;
2. further, a window is formed in the position of the corresponding layer where the antenna is arranged, so that the distributed capacitance is reduced, and the radiation performance is improved.
Drawings
Fig. 1 is a schematic diagram of an antenna wiring structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an antenna wiring top layer structure in accordance with one embodiment of the present invention;
FIG. 3 is a schematic diagram of an antenna wiring infrastructure in accordance with one embodiment of the invention;
fig. 4 is a schematic diagram of an antenna wiring structure according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention relates to a wiring structure of a microwave induction radar antenna, as shown in fig. 1, a double-sided copper-clad PCB (printed circuit board) comprises a bottom copper-clad layer 3 and a top copper-clad layer 1, wherein a fiber layer (not shown) is arranged between the top copper-clad layer 1 and the bottom copper-clad layer 3, a window 4 is formed in the bottom copper-clad layer 3, namely, no copper is present at the position of the window 4, an antenna receiving end 2 is arranged at the position of the top copper-clad layer 1 corresponding to the window 4, and the antenna receiving end 2 is a strip copper-clad wire stretching along four directions by taking the central position of the window 4 as a reference.
The area occupied by the four strip-shaped copper-clad wires on the copper-clad layer is smaller than the area of the window 4, that is, the extending ends of the four strip-shaped copper-clad wires do not exceed the space surrounded by the window 4.
As shown in fig. 1, 2 and 3, the ports of the two strip-shaped copper-clad wires are connected with the front and rear circuits, that is, are respectively connected with components in the front and rear circuits to form parts for connecting the front and rear circuits in the antenna, and the ports of the two strip-shaped copper-clad wires are not connected with the components to form parts for influencing the parameters of the antenna electrical appliances, so that the parts for connecting the front and rear circuits of the antenna and the parts for influencing the parameters of the antenna electrical appliances are separated, and in the debugging process, the copper poises of the parts of the two non-connected components are modified, so that the electrical parameters of the antenna can be adjusted, and the printing times of a PCB board are saved.
A port of the strip copper-clad wire is connected with a high-frequency triode, and a base electrode of the high-frequency triode is connected with a square emitting end of the antenna.
In one embodiment of the present application, the widths of two strip-shaped copper-clad wires connecting components are simultaneously smaller than the widths of two other strip-shaped copper-clad wires not connecting any components.
The reactance and electrical parameters of the other two strip copper-clad wires which are not connected with any component are less than or equal to 150% of the design value.
In one embodiment of the present application, no components are disposed on the circuit board in front of the ports of the other two strip-shaped copper-clad wires, which are not connected to any components, so as to reduce the distributed capacitance and increase the radiation performance.
In one embodiment of the present application, the window 4 has an area at its center, and the shape is a regular shape, or an irregular shape, where the regular shape includes at least one of square, rectangle, circle, sector, regular polygon.
The four strip copper wires are connected with the central position, as shown in fig. 4, the central position 21 is in a rectangular structure, and the four strip copper wires 22, 23, 24 and 25 are distributed at different positions of the central position 21 and connected with different positions of the central position 21. The four strip-shaped copper-clad wires 22, 23, 24, 25 are different in extending direction.
In one embodiment of the present application, the strip-shaped copper wires 23, 24 are located on the same straight line, the directions of the strip-shaped copper wires 23, 24 are the same, and the joints of the four strip-shaped copper wires and the center position are located in three directions of the center position.
In one embodiment of the present application, the strip-shaped copper wires 23 and 24 are located on the same straight line, the directions of the strip-shaped copper wires 23 and 24 are the same, and likewise, the strip-shaped copper wires 22 and 25 are located on the same straight line, the directions of the strip-shaped copper wires 22 and 25 are the same, and the joints of the four strip-shaped copper wires and the central position are located in two directions of the central position.
At this time, the four strip copper-clad wires form a cross structure, and the included angle of the cross structure is any value.
In a specific embodiment of the present application, for the multilayer copper clad laminate, windows are formed in each layer corresponding to the area formed by the strip-shaped copper clad laminate extending in four directions, and the area of the windows is larger than the area formed by the strip-shaped copper clad laminate extending in four directions, so as to reduce the distributed capacitance and increase the radiation performance.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (7)
1. The utility model provides a wiring structure of microwave response radar antenna which characterized in that: a window is formed in the bottom layer of the double-sided copper-clad plate, copper is not coated at the window position, an antenna receiving end is etched at the corresponding position of the top layer, and the antenna receiving end is a strip copper-clad wire which extends along four directions by taking the central position of the window as a reference; the strip copper-clad wires extending along the four directions form a cross structure; the area occupied by the strip copper-clad wire on the copper-clad plate is smaller than the area of the window; in the strip copper-clad wires extending in four directions, ports of two strip copper-clad wires are connected with components, and ports of the other two strip copper-clad wires are not connected with any components.
2. The wiring structure of a microwave-induced radar antenna according to claim 1, wherein: for the multilayer copper clad laminate, windows are formed in each layer corresponding to the areas formed by the strip copper clad laminate stretching in four directions, and the areas of the windows are larger than the areas formed by the strip copper clad laminate stretching in four directions.
3. The wiring structure of a microwave-induced radar antenna according to claim 1, wherein: the window is provided with a certain area at the center, and the shape of the window is a regular shape or an irregular shape, and the regular shape comprises at least one of square, rectangle, circle and fan.
4. The wiring structure of a microwave-induced radar antenna according to claim 1, wherein: the connection part of the strip-shaped copper-clad wires stretching in four directions and the central position is positioned in two directions of the central position, or in three directions of the central position, or in four directions of the central position.
5. The wiring structure of a microwave-induced radar antenna according to claim 1, wherein: the widths of the two strip-shaped copper-clad wires connected with the components are simultaneously smaller than the widths of the other two strip-shaped copper-clad wires not connected with any components.
6. The wiring structure of a microwave-induced radar antenna according to claim 1, wherein: the reactance and electrical parameters of the other two strip copper-clad wires which are not connected with any component are less than or equal to 150% of the design value.
7. The wiring structure of a microwave-induced radar antenna according to claim 1, wherein: the other two strip copper wire ports which are not connected with any component are arranged on the circuit board in front of the ports, and no component is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657948.7A CN110289493B (en) | 2019-07-20 | 2019-07-20 | Wiring structure of microwave induction radar antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657948.7A CN110289493B (en) | 2019-07-20 | 2019-07-20 | Wiring structure of microwave induction radar antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110289493A CN110289493A (en) | 2019-09-27 |
| CN110289493B true CN110289493B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657948.7A Active CN110289493B (en) | 2019-07-20 | 2019-07-20 | Wiring structure of microwave induction radar antenna |
Country Status (1)
| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5801660A (en) * | 1995-02-14 | 1998-09-01 | Mitsubishi Denki Kabushiki Kaisha | Antenna apparatuus using a short patch antenna |
| JP2003046245A (en) * | 2001-07-30 | 2003-02-14 | Matsushita Electric Ind Co Ltd | Manufacturing method of multilayer printed wiring board |
| KR100656569B1 (en) * | 2005-09-27 | 2006-12-11 | 이현진 | Circular polarization microstrip patch antenna and antenna array structure |
| CN206673120U (en) * | 2017-04-10 | 2017-11-24 | 西安市宏波科技开发有限责任公司 | A kind of deposited copper PCB Double-frequency antenna structure |
| CN209880813U (en) * | 2019-07-20 | 2019-12-31 | 瑞德探测技术（深圳）有限公司 | Wiring structure of microwave induction radar antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3973402B2 (en) * | 2001-10-25 | 2007-09-12 | 株式会社日立製作所 | High frequency circuit module |
| US20190072643A1 (en) * | 2017-09-01 | 2019-03-07 | Gardenia Industrial Limited | Directional radar transmitting and receiving devices |
-
2019
- 2019-07-20 CN CN201910657948.7A patent/CN110289493B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5801660A (en) * | 1995-02-14 | 1998-09-01 | Mitsubishi Denki Kabushiki Kaisha | Antenna apparatuus using a short patch antenna |
| JP2003046245A (en) * | 2001-07-30 | 2003-02-14 | Matsushita Electric Ind Co Ltd | Manufacturing method of multilayer printed wiring board |
| KR100656569B1 (en) * | 2005-09-27 | 2006-12-11 | 이현진 | Circular polarization microstrip patch antenna and antenna array structure |
| CN206673120U (en) * | 2017-04-10 | 2017-11-24 | 西安市宏波科技开发有限责任公司 | A kind of deposited copper PCB Double-frequency antenna structure |
| CN209880813U (en) * | 2019-07-20 | 2019-12-31 | 瑞德探测技术（深圳）有限公司 | Wiring structure of microwave induction radar antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110289493A (en) | 2019-09-27 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200420 Address after: 518000 Block 301, Tsinghua Ziguang Information Port A, Langshan Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN ASCHIP TECH Co.,Ltd. Address before: 518055 Block 315, Tsinghua Ziguang Information Port A, Langshan Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province Applicant before: RUIDE DETECTION TECHNOLOGY (SHENZHEN) Co.,Ltd. |
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