CN111129727A - Antenna system and electronic device - Google Patents
Antenna system and electronic device Download PDFInfo
- Publication number
- CN111129727A CN111129727A CN201911252539.5A CN201911252539A CN111129727A CN 111129727 A CN111129727 A CN 111129727A CN 201911252539 A CN201911252539 A CN 201911252539A CN 111129727 A CN111129727 A CN 111129727A
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- Prior art keywords
- circuit board
- antenna system
- metal base
- lines
- ridge
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- 239000002184 metal Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/0275—Ridged horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
Landscapes
- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention provides an antenna system, which comprises a metal base, a circuit board and a loudspeaker unit, wherein the metal base is provided with a first end and a second end; the circuit board is clamped between the metal base and the loudspeaker unit and is respectively and electrically connected with the metal base and the loudspeaker unit; the metal base comprises a top surface and a bottom surface opposite to the top surface, and the circuit board is covered on the top surface; the circuit board is provided with a feed transmission line; the loudspeaker unit comprises four side walls which are connected end to end, the inner side surfaces of the four side walls surround to form a through hole, the inner side of each side wall is provided with a ridge extending from the side wall, and the four ridges are respectively pressed at the positions, corresponding to the feed transmission lines, on the circuit board; the loudspeaker unit also comprises a first filling part filled in the through hole, the first filling part is provided with a groove corresponding to the ridge, and the ridge is matched with the groove to close the through hole. The invention also provides electronic equipment. According to the antenna provided by the invention, the first filling part is filled in the horn unit, so that the frequency and the size of an antenna system are reduced, and the requirement of large-angle scanning is met.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of communication, in particular to an antenna system and electronic equipment.
[ background of the invention ]
With the development of mobile communication technology, mobile phones, tablet computers, notebook computers and the like gradually become indispensable electronic products for life, and the electronic products are all updated to electronic communication products with communication functions by adding antenna systems.
As a research and development focus in the global industry, 5G has three main application scenarios: enhanced mobile broadband, large-scale machine communication, high-reliability and low-delay communication. The three application scenes respectively correspond to different key indexes, wherein the peak speed of a user in the enhanced mobile bandwidth scene is 20Gbps, and the lowest user experience rate is 100 Mbps. The unique high carrier frequency and large bandwidth characteristics of millimeter waves are the main means for realizing 5G ultrahigh data transmission rate, so that the rich bandwidth resources of the millimeter wave frequency band provide guarantee for high-speed transmission rate.
The horn antenna has been widely used because of its large gain and good directivity. However, the size of the conventional horn antenna is large, and for the metal millimeter wave horn antenna, the array cannot meet the requirement of large-angle scanning.
Therefore, there is a need to provide a new antenna system and an electronic device to solve the above problems.
[ summary of the invention ]
The invention mainly aims to provide an antenna system and a powered electronic device which meet the requirement of large-angle scanning.
In order to achieve the above object, the present invention provides an antenna system, which includes a metal base, a circuit board, and a speaker unit; the circuit board is clamped between the metal base and the loudspeaker unit and is respectively and electrically connected with the metal base and the loudspeaker unit;
the metal base comprises a top surface and a bottom surface opposite to the top surface, and the circuit board is covered on the top surface;
a feed transmission line is arranged on the circuit board;
the loudspeaker unit comprises four side walls which are connected end to end, the inner side surfaces of the four side walls surround to form a through hole, the inner side of each side wall is provided with a ridge extending out of the side wall, and the four ridges are respectively pressed on the circuit board at positions corresponding to the feed transmission lines; the loudspeaker unit further comprises a first filling part filled in the through hole, the first filling part is provided with a groove corresponding to the ridge, and the ridge is matched with the groove to seal the through hole.
Furthermore, the feed transmission line comprises two signal lines arranged in the circuit board, wherein the two signal lines are perpendicular to each other and are arranged at intervals in the thickness direction of the circuit board.
Furthermore, each ridge extends in a direction perpendicular to the side walls, and the ridges on the two opposite side walls are pressed at the corresponding positions of the same signal line.
Further, the two signal lines are crossed.
Furthermore, the circuit board is provided with a feeding point, and one end of each signal wire is electrically connected with the feeding point.
The circuit board further comprises a substrate and the signal wires embedded in the substrate, the circuit board further comprises two pairs of grounding wires exposed on the surface of the circuit board, each pair of grounding wires corresponds to one signal wire in position and comprises two grounding sub-wires arranged at intervals, the two grounding sub-wires of each pair of grounding wires are symmetrical with respect to the center of the caliber of the horn unit, and the four ridges are respectively pressed on the four grounding sub-wires.
Further, the cross section of the through hole is gradually increased along a direction away from the circuit board.
Further, the cross section of the first filling part is gradually increased along a direction away from the circuit board.
Further, metal base is equipped with the reflection chamber, the top surface to the sunken formation of bottom surface direction the reflection chamber, metal base still includes second filling portion, second filling portion accept in the reflection chamber, the shape of second filling portion with the reflection chamber phase-match.
The invention also provides an electronic device comprising the antenna system of any one of the above.
The invention has the beneficial effects that: the first filling part is filled in the horn unit, so that the frequency and the size of the antenna system are reduced, the antenna size can be reduced, and simultaneously, the array can meet the requirement of large-angle scanning of the antenna system.
[ description of the drawings ]
Fig. 1 is a schematic diagram of an antenna system provided by the present invention.
Fig. 2 is an exploded view of the antenna system of the present invention.
Fig. 3 is a cross-sectional view of an antenna system provided by the present invention.
Fig. 4 is a top view of a horn unit of the antenna system of the present invention.
Fig. 5 is a perspective view of a circuit board of an antenna system provided by the present invention.
Fig. 6 is an enlarged view of the area B in fig. 2.
Fig. 7 is a schematic diagram showing an enlarged view of the range C in bitmap 3.
Description of the drawings: 100. an antenna system; 10. a metal base; 11. a top surface; 12. a bottom surface; 13. a reflective cavity; 14. a second filling part; 20. a circuit board; 201. a substrate; 21. a feed transmission line; 211. a first signal line; 212. a second signal line; 213. a first ground plane; 214. a second ground plane; 2131. a ground line; 2131a, 2131b, a ground sub-line; 213a, the inner edge of the first ground layer; 214a, an inner edge of the second ground layer; 22. a feed point; 221. a first feeding point; 222. a second feeding point; 231. a first side surface; 232. a second side surface; 30. a horn unit; 31. a side wall; 311. an inner sidewall; 32. a through hole; 312. a ridge portion; 3121. a coupling section; 3122. an extension portion; 33. a first filling part; 331. and (4) a groove.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present invention in its various embodiments. However, the technical solution claimed in the present invention can be implemented without these technical details and various changes and modifications based on the following embodiments.
Referring to fig. 1-2, an antenna system 100 is provided, the antenna system 100 includes a metal base 10, a circuit board 20, and a speaker unit 30; the circuit board 20 is sandwiched between the metal base 10 and the speaker unit 30 and electrically connected to the metal base 10 and the speaker unit 30, respectively.
The metal base 10 includes a top surface 11 and a bottom surface 12 opposite to the top surface 11, and the circuit board 20 is covered on the top surface 11.
A feeding transmission line is provided in the circuit board 20.
The horn unit 30 includes four side walls 31 connected end to end, inner side walls 311 of the four side walls 31 surround to form through holes 32, the inner side wall 311 of each side wall 31 is provided with a ridge 312 extending towards the direction of the opposite side wall 31, and the four ridges 312 are respectively pressed on the circuit board 20 at positions corresponding to the feed transmission lines; the horn unit 30 further includes a first filling portion 33 filled in the through hole 32, the first filling portion 33 is provided with a groove 331 corresponding to the ridge 312, and the ridge 312 and the groove 331 cooperate to close the through hole.
In the present embodiment, the ridge 312 of the horn unit 30 is stacked on the circuit board 20 side, and the electromagnetic wave is received and transmitted by coupling power feeding with the ridge 312 through the power feeding transmission line. Meanwhile, the speaker unit 30 and the metal base 10 are electrically connected to the circuit board 20, respectively, and serve as a system ground of the circuit board 20. The number of the concave grooves 331 of the first filling portion 33 corresponds to the number of the ridges 312, and the ridges 312 are buried in the first filling portion 33 without contacting with air by the ridges 312 being closely fitted to the concave grooves 331. Meanwhile, the inner sidewall 311 of the sidewall 31 completely fits the side surface of the first filling portion 33, and the opening of the through hole 32 on the side away from the circuit board 20 is closed. The first filling part 33 may completely fill the closed through-hole 32 according to the volume of the first filling part 33. By filling the horn unit 30, the cut-off frequency and size of the antenna system can be reduced without increasing the antenna size.
Preferably, referring to fig. 3, the ridge 312 includes a coupling portion 3121 connected to the circuit board 20 and an extension portion 3122 extending from the coupling portion 3121 to an end of the through hole 32 away from the circuit board 20, wherein the extension portion 3122 is gradually opened from an end thereof near the coupling portion 3121 to an end thereof away from the coupling portion 3121, so that a cross-sectional area of an end of the extension portion 3122 near the coupling portion 3121 is larger than that of an end thereof away from the coupling portion 3121.
Preferably, the cross-section of the through-hole 32 gradually increases in a direction away from the circuit board 20. Specifically, the thicknesses of the four side walls 31 of the horn unit 30 are gradually reduced from the end close to the circuit board 20 to the end far from the circuit board 20, so that the cross-sectional size of the through hole 32 is gradually increased. The opening area of the through hole 32 near the circuit board 20 is much larger than that of the through hole far from the circuit board 20, that is, the speaker unit 30 is configured to form a speaker-shaped structure. In addition, in the present embodiment, the through-hole 32 may have a circular or rectangular cross section.
Preferably, the cross-section of the first filling part 33 is gradually increased in a direction away from the circuit board. Specifically, the cross-sectional dimension of the first filling portion 33 gradually increases from the end close to the circuit board 20 to the end far from the circuit board 20, and the cross-sectional shape of the first filling portion 33 is a circular or rectangular shape with a notch according to the cross-sectional shape of the through hole 32, and the notch is matched with the ridge 312, so that the groove 331 can completely wrap the ridge 312, and the opening of the through hole 32 at the end far from the circuit board 20 can be completely closed by the first filling portion 33, so as to obtain a better antenna transmission effect.
Preferably, the metal base 10 is provided with a reflection cavity 13, the top surface 11 is recessed towards the bottom surface 12 to form the reflection cavity 13, the metal base 10 further includes a second filling portion 14, the second filling portion 14 is contained in the reflection cavity 13, and the shape of the second filling portion 14 is matched with the reflection cavity 13. Specifically, the reflective cavity 13 is used to suppress back radiation of the antenna system 100, and the addition of the second filling portion 14 can lower the cutoff frequency of the entire antenna system 100. Preferably, the opening shape of the reflective cavity 13, the shape of the through hole 32, and the cross-sectional shape of the first filling portion 33 are the same, and the opening of the reflective cavity 13 is larger than the opening of the through hole 32 on the side close to the circuit board 20, so as to better suppress the back radiation of the antenna system 100.
Preferably, referring to fig. 5-7, the feeding transmission line 21 includes a first signal line 211 and a second signal line 212 disposed in the circuit board 20, and the two signal lines are spaced apart from each other in the thickness direction of the circuit board. In this embodiment, the first signal line 211 and the second signal line 212 are vertically crossed, and the crossed intersections formed by the first signal line 211 and the second signal line 212 are not in contact with each other, so as to avoid interference caused by direct contact between the signal lines 21, so that the antenna system 100 realizes dual polarization, and is suitable for more application occasions of the antenna system 100.
Preferably, each ridge 312 extends in a direction perpendicular to the side walls 31, and the ridges 312 on two opposite side walls 31 are pressed on the corresponding positions of the same signal line. Referring to fig. 4, it can be understood that, when the first signal line 211 and the second signal line 212 are arranged in a cross shape at intervals, two ridge portions 312 are correspondingly arranged on the first signal line 211 and the second signal line 212, respectively, the bottom of the ridge portion 312 contacts the circuit board 20 at a position opposite to the first signal line 211 or the second signal line 212, and four ridge portions 312 are arranged in a cross shape when looking down on the speaker unit 30.
Preferably, the circuit board 20 is provided with a feeding point 22, and one end of each of the first signal line 211 and the second signal line 212 is electrically connected to the feeding point 22 for feeding connection with an external device. Specifically, the first signal line 211 and the second signal line 212 extend to the first side 231 and the second side 232 of the circuit board 20, and are electrically connected to the feeding points 22 disposed on the first side 231 and the second side 232, and the second side 23 of the circuit board 20 is a surface parallel to the thickness direction of the circuit board. In the present embodiment, the feeding point 22 includes a first feeding point 221 and a second feeding point 222, the first feeding point 221 is electrically connected to one end of the first signal line 211, and the second feeding point 222 is electrically connected to the second signal line 212. Specifically, the first feeding point 221 is disposed on the first side 231, and the first signal line 211 is electrically connected to the first feeding point 221; the second feeding point 222 is disposed at the second side 232, and the second signal line 212 is electrically connected to the second feeding point 222.
Preferably, the circuit board 20 includes a substrate 201, a first ground layer 213 exposed on a side of the substrate 201 close to the speaker unit 30, and a second ground layer 214 exposed on a side of the substrate 201 close to the metal base 10, wherein the first signal line 211 and the second signal line 212 are embedded in the substrate 201. The first ground layer 213 includes two pairs of ground lines 2131, each pair of ground lines 2131 corresponds to one signal line position and includes two ground sub-lines 2131a, 2131b arranged at intervals, the two ground sub-lines 2131a, 2131b of each pair of ground lines 2131 are symmetrical with respect to the center of the aperture of the horn unit 30, and the four ridges 312 are respectively pressed onto the four ground sub-lines 2131a, 2131 b. The change in distance between each pair of ground sub-lines 2131a, 2131b can tune the feed impedance. The diameter of the first ground layer inner edge 213a (excluding the ground line 2131) is equal to the diameter of the first filling portion 33 on the side closer to the circuit board 20. The second ground layer 214 has substantially the same shape as the first ground layer 213, but is not provided with a ground line. The aperture size enclosed by the inner edge 214a of the second ground layer is the same as the aperture size of the reflective cavity 13 toward the circuit board. The first ground layer 213, the first signal line 211, and the second ground layer 214 form a strip line structure, and the first ground layer 213, the second signal line 212, and the second ground layer 214 form another strip line structure, which are respectively used as the feeding transmission line 21 of the speaker unit 30.
The invention also provides an electronic device comprising the antenna system 100 described above.
In the above embodiment, the first filling portion 33 is filled in the horn unit 30, so as to reduce the frequency and size of the antenna system, and the operating frequency band of the antenna system is not affected while the antenna is reduced in size. And the dual polarization is realized by the crossed arrangement of the two feeding transmission lines 21 and the coupling with the ridge 312. And set up the reflecting cavity 13 and add the second filling part 14 in the metal base 10, can improve the gain of the aerial, can meet the requirement of the large-angle scanning.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. An antenna system, characterized in that the antenna system comprises a metal base, a circuit board and a horn unit; the circuit board is clamped between the metal base and the loudspeaker unit and is respectively and electrically connected with the metal base and the loudspeaker unit;
the metal base comprises a top surface and a bottom surface opposite to the top surface, and the circuit board is covered on the top surface;
a feed transmission line is arranged on the circuit board;
the loudspeaker unit comprises four side walls which are connected end to end, the inner side surfaces of the four side walls surround to form a through hole, the inner side of each side wall is provided with a ridge extending out of the side wall, and the four ridges are respectively pressed on the circuit board at positions corresponding to the feed transmission lines; the loudspeaker unit further comprises a first filling part filled in the through hole, the first filling part is provided with a groove corresponding to the ridge, and the ridge is matched with the groove to seal the through hole.
2. The antenna system of claim 1, wherein the feed transmission line comprises two signal lines disposed in the circuit board, the two signal lines being perpendicular to each other and spaced apart in a thickness direction of the circuit board.
3. The antenna system of claim 2, wherein each ridge extends in a direction perpendicular to the sidewalls, and the ridges on two opposing sidewalls are pressed into the same signal line at the corresponding positions.
4. The antenna system according to claim 2 or 3, wherein the two signal lines cross in shape.
5. The antenna system of claim 4, wherein the circuit board is provided with a feed point, and one end of each signal line is electrically connected to the feed point.
6. The antenna system of claim 5, wherein the circuit board comprises a substrate and the signal lines embedded in the substrate, the circuit board further comprises two pairs of ground lines exposed on the surface of the circuit board, each pair of ground lines corresponds to one signal line and comprises two ground sub-lines arranged at intervals, the two ground sub-lines of each pair of ground lines are symmetrical with respect to the center of the aperture of the horn unit, and the four ridges are respectively pressed on the four ground sub-lines.
7. The antenna system of claim 1, wherein the cross-section of the via gradually increases in a direction away from the circuit board.
8. The antenna system according to claim 1 or 7, characterized in that the cross section of the first filling part gradually increases in a direction away from the circuit board.
9. The antenna system of claim 1, wherein the metal base has a reflective cavity, the top surface is recessed toward the bottom surface to form the reflective cavity, the metal base further includes a second filling portion, the second filling portion is received in the reflective cavity, and the shape of the second filling portion matches the shape of the reflective cavity.
10. An electronic device, characterized in that the electronic device comprises an antenna system according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252539.5A CN111129727B (en) | 2019-12-09 | 2019-12-09 | Antenna system and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252539.5A CN111129727B (en) | 2019-12-09 | 2019-12-09 | Antenna system and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111129727A true CN111129727A (en) | 2020-05-08 |
| CN111129727B CN111129727B (en) | 2022-07-26 |
Family
ID=70497976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911252539.5A Expired - Fee Related CN111129727B (en) | 2019-12-09 | 2019-12-09 | Antenna system and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111129727B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040095286A1 (en) * | 2002-11-02 | 2004-05-20 | Lee Tae Yune | Horn antenna system having a strip line feeding structure |
| CN103650243A (en) * | 2013-07-31 | 2014-03-19 | 华为技术有限公司 | Antenna |
| CN104428949A (en) * | 2012-07-03 | 2015-03-18 | 利萨·德雷克塞迈尔有限责任公司 | Antenna system for broadband satellite communication in ghz frequency range, comprising dielectrically filled horn antennas |
| CN109273847A (en) * | 2018-12-18 | 2019-01-25 | 瑞声光电科技(常州)有限公司 | Antenna system and communication terminal |
| CN109616766A (en) * | 2018-10-25 | 2019-04-12 | 瑞声科技(新加坡)有限公司 | Antenna system and communicating terminal |
-
2019
- 2019-12-09 CN CN201911252539.5A patent/CN111129727B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040095286A1 (en) * | 2002-11-02 | 2004-05-20 | Lee Tae Yune | Horn antenna system having a strip line feeding structure |
| CN104428949A (en) * | 2012-07-03 | 2015-03-18 | 利萨·德雷克塞迈尔有限责任公司 | Antenna system for broadband satellite communication in ghz frequency range, comprising dielectrically filled horn antennas |
| CN103650243A (en) * | 2013-07-31 | 2014-03-19 | 华为技术有限公司 | Antenna |
| CN109616766A (en) * | 2018-10-25 | 2019-04-12 | 瑞声科技(新加坡)有限公司 | Antenna system and communicating terminal |
| CN109273847A (en) * | 2018-12-18 | 2019-01-25 | 瑞声光电科技(常州)有限公司 | Antenna system and communication terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111129727B (en) | 2022-07-26 |
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Granted publication date: 20220726 |