CN117317582A - Low-frequency radiation unit - Google Patents
Low-frequency radiation unit Download PDFInfo
- Publication number
- CN117317582A CN117317582A CN202311224023.6A CN202311224023A CN117317582A CN 117317582 A CN117317582 A CN 117317582A CN 202311224023 A CN202311224023 A CN 202311224023A CN 117317582 A CN117317582 A CN 117317582A
- Authority
- CN
- China
- Prior art keywords
- line
- dipole layer
- supporting seat
- dielectric substrate
- low frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005855 radiation Effects 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052742 iron Inorganic materials 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
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a low-frequency radiation unit structure, which is fixedly arranged on a reflecting plate and comprises: the device comprises a dielectric substrate, a feed piece and a supporting seat; the surface of the dielectric substrate is provided with a first dipole layer and a second dipole layer which are symmetrical relative to the feed piece, and blank areas are arranged in the first dipole layer and the second dipole layer; one end of the feed sheet protrudes to form a feed interface penetrating through the surface of the dielectric substrate, and the other end of the feed sheet is provided with a grounding point for connecting a coaxial line; the supporting seat is in buckling connection with the reflecting plate, and is used for limiting the feed piece and bearing the medium substrate on the reflecting plate. The blank areas in the first dipole layer and the second dipole layer are opposite to the high-frequency radiation unit, so that the shielding area of the whole low-frequency radiation unit to the high-frequency radiation unit is reduced.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a low-frequency radiation unit.
Background
With the development of microwave communication technology, the number of base station antennas in different frequency bands is dramatically increased, but the space in the iron tower is limited, which results in that the miniaturized multi-frequency antenna gradually becomes the main stream of technology development. After the antenna size is reduced, the array space between the modules of the antenna can be reduced, so that the shielding area of the low-frequency radiating unit to the high-frequency radiating unit is increased, the directional diagram curve of the high-frequency radiating unit is seriously deformed, the gain is reduced, and the antenna signal coverage is affected.
Disclosure of Invention
In order to solve the problem that the array space between the modules of the antenna becomes smaller after the size of the antenna is reduced in the background technology, so that the shielding area of the low-frequency radiating unit to the high-frequency radiating unit becomes larger, the invention provides the following technical scheme:
a low frequency radiating element fixedly disposed on a reflecting plate, comprising: the device comprises a dielectric substrate, a feed piece and a supporting seat; the surface of the dielectric substrate is provided with a first dipole layer and a second dipole layer which are symmetrical relative to the feed piece, and blank areas are arranged in the first dipole layer and the second dipole layer; one end of the feed sheet protrudes to form a feed interface penetrating through the surface of the dielectric substrate, and the other end of the feed sheet is provided with a grounding point for connecting a coaxial line; the supporting seat is in buckling connection with the reflecting plate, and is used for limiting the feed piece and bearing the medium substrate on the reflecting plate.
Wherein the first said dipole layer comprises: the first circuit and the second circuit are arranged at intervals; one side of the first circuit is sunken, and a first transition line extending towards the second dipole is arranged on the other side of the first circuit; the first circuit and the second circuit are coupled through a gap; the second line portion is slotted, thereby forming one of the blank areas; when the dielectric substrate is fixedly arranged on the reflecting plate, the blank area is opposite to one high-frequency radiation unit.
Further, the second dipole layer includes: a third line and a fourth line arranged at intervals; one side of the third circuit is sunken, and a second transition line extending towards the first dipole layer is arranged on the other side of the third circuit; the third line and the fourth line are coupled through a gap; a portion of the fourth line is slotted, thereby forming another one of the blank areas; when the dielectric substrate is fixedly arranged on the reflecting plate, the blank area is opposite to the other high-frequency radiating unit.
Further, the support seat is hollow, and a first limit groove and a second limit groove which extend along the height direction of the support seat are arranged in the cavity of the support seat; the feed piece is inserted into the supporting seat and keeps a vertical state between the first limit groove and the second limit groove.
Further, a wire clamping groove for limiting the coaxial wire is formed in one side, far away from the medium substrate, of the supporting seat, and one end of the coaxial wire penetrates into the wire clamping groove and is fixedly connected with the grounding point after the feeding piece is inserted into the supporting seat.
Further, the contour of the grooved section on the second line includes an gradual line and a fold line; the folding lines are arranged in a step shape, and one side of the long side of each folding line is connected with one end of the asymptote.
Further, the length of the first gap is one fifth of the working frequency of the first dipole layer to one fourth of the working frequency of the first dipole layer; the length of the second gap is one fifth wavelength of the second dipole layer working frequency to one fourth wavelength of the second dipole layer working frequency.
Further, the width of each of the first slit and the second slit is 0.5mm.
The beneficial effects are that: the blank areas in the first dipole layer and the second dipole layer are opposite to the high-frequency radiation unit, so that the shielding area of the whole low-frequency radiation unit to the high-frequency radiation unit is reduced.
Drawings
Fig. 1 is an exploded view of a low frequency radiating element according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a dielectric substrate according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a low frequency radiating element according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the present patent.
Fig. 1 is a schematic perspective view of a low frequency radiating element according to an embodiment of the present invention.
Referring to fig. 1, a low frequency radiating element according to an embodiment of the present invention includes: a dielectric substrate 1, a feeding sheet 2 and a supporting seat 3. The surface of the dielectric substrate 1 is provided with a first dipole layer 11 and a second dipole layer 12 which are symmetrical relative to the feed piece 2, and blank areas are arranged in the first dipole layer 11 and the second dipole layer 12; one end of the feed sheet 2 protrudes to form a feed interface penetrating through the surface of the dielectric substrate 1, and the other end of the feed sheet 2 is provided with a grounding point for connecting the coaxial line 4; the supporting seat 3 is in buckle connection with the reflecting plate, and the supporting seat 3 is used for limiting the feed piece 2 and bearing the medium substrate 1 on the reflecting plate.
Fig. 2 is a schematic top view of a dielectric substrate according to an embodiment of the present invention.
Referring to fig. 2, specifically, the dielectric substrate 1 is a PCB (printed circuit board), and the first dipole layer 11 and the second dipole layer 12 are microwave circuit patterns attached with copper on the dielectric substrate 1. The first dipole layer 11 includes a first line 111 and a second line 112 disposed at a distance, and the first line 111 and the second line 112 are coupled through the first gap 5. The side of the first line 111 near the second line 112 is recessed inward, and the side of the first line 111 far from the second line 112 is provided with a first transition line 113 extending toward the second dipole layer 12. The second line 112 is partially grooved to form one of the blank areas described above.
Further, the contour lines in the blank area include broken lines and asymptotes. One side of the folding line is arranged in a ladder shape, and the other side of the folding line is respectively connected with one section of asymptote, so that a cup-shaped contour line is formed. Preferably, in this embodiment, the fold lines form only one step. In other embodiments, the fold line may be formed with multiple steps of two, three, and more layers, specifically configured according to performance design requirements.
Since the first dipole layer 11 and the second dipole layer 12 are symmetrically disposed with respect to the feeding tab 2, the second dipole layer 12 includes: third and fourth lines 121 and 122 disposed at intervals. Wherein one side of the third line 121 is recessed, thereby forming a second slit 6 coupled with the fourth line 122. The other side of the third line 121 is provided with a second transition line 123 extending toward the first dipole layer 11, and when the feeding interface of the feeding tab 2 passes through the surface of the dielectric substrate 1, one side of the feeding interface is connected with the first transition line 113, and the other side of the feeding interface is connected with the second transition line 123. The contour of the grooved portion in the second dipole layer 12 is the same as that in the first dipole layer 11, and will not be described here again. Preferably, in the present embodiment, the lengths of the first slit 5 and the second slit 6 are related to the operating frequency used for the entire low frequency radiating element. The length of the first slit 5 and the second slit 6 is between a fifth wavelength of the operating frequency and a quarter wavelength of the operating frequency, and the width of the first slit 5 and the second slit 6 is 0.5mm.
Fig. 3 is a schematic perspective view of a low frequency radiating element according to an embodiment of the present invention.
Referring to fig. 1 and 3 together, further, a first limiting groove 31 and a second limiting groove 32 for limiting the feeding piece 2 are provided in the cavity of the supporting seat 3, and the first limiting groove 31 and the second limiting groove 32 extend along the height direction of the supporting seat 3. Wherein, the positions of the first limit groove 31 and the second limit groove 32 are opposite, and when the feeding piece 2 is inserted into the supporting seat 3, the feeding piece 2 is kept in a vertical state between the first limit groove 31 and the second limit groove 32. The bottom of supporting seat 3 is equipped with the elasticity buckle, and supporting seat 3 is connected with the reflecting plate buckle through the elasticity buckle that the bottom set up. Further, in order to better stabilize the electrical performance of the feeding tab 2, the bottom of the supporting base 3 is further provided with a clamping slot 33. After the feeding sheet 2 is inserted into the supporting seat 3, two ends (i.e. a feeding interface and a grounding point) of the feeding sheet 2 respectively penetrate out of two ends of the supporting seat 3. The feeding interface is located at the junction of the first transition line 113 and the second transition line 123, and two sides of the feeding interface are respectively connected with the first transition line 113 and the second transition line 123. One end of the coaxial line 4 penetrates into the wire clamping groove 33 and is fixedly welded with the grounding point, and the periphery of the coaxial line 4 is limited in the wire clamping groove 33, so that the feeding piece 2 is ensured to stably feed the first dipole layer 11 and the second dipole layer 12.
In summary, the blank areas in the first dipole layer and the second dipole layer are opposite to the high-frequency radiation unit, so that the shielding area of the whole low-frequency radiation unit to the high-frequency radiation unit is reduced. Further, the first limit groove and the second limit groove in the supporting seat are arranged, so that the feeding piece can stably feed power to the first dipole layer and the second dipole layer. Further, the first line and the second line are coupled through the first gap, and the third line and the fourth line are coupled through the second gap, so that the whole bandwidth of the low-frequency radiating unit can be widened.
The foregoing describes specific embodiments of the invention. Other embodiments are within the scope of the following claims.
The terms "exemplary," "example," and the like, as used throughout this specification, mean "serving as an example, instance, or illustration," and do not mean "preferred" or "advantageous" over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described technology. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described embodiments.
The alternative implementation of the embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the embodiment of the present invention is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solutions of the embodiment of the present invention within the scope of the technical concept of the embodiment of the present invention, and these simple modifications all fall within the protection scope of the embodiment of the present invention.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A low frequency radiation unit fixedly arranged on a reflecting plate, characterized in that the low frequency radiation unit comprises: a dielectric substrate (1), a feed piece (2) and a supporting seat (3); a first dipole layer (11) and a second dipole layer (12) which are symmetrical relative to the feed piece (2) are arranged on the surface of the medium substrate (1), and blank areas are arranged in the first dipole layer (11) and the second dipole layer (12); one end of the feed sheet (2) protrudes to form a feed interface penetrating through the surface of the dielectric substrate (1), and the other end of the feed sheet (2) is provided with a grounding point for connecting a coaxial line (4); the supporting seat (3) is in buckling connection with the reflecting plate, and the supporting seat (3) is used for limiting the feed piece (2) and bearing the dielectric substrate (1) on the reflecting plate.
2. A low frequency radiating element as claimed in claim 1, wherein said first said dipole layer comprises: a first line (111) and a second line (112) arranged at intervals; one side of the first circuit (111) is sunken, and a first transition line (113) extending towards the second dipole is arranged on the other side of the first circuit (111); -coupling between said first line (111) and said second line (112) through a first gap (5); -said second line (112) is partially slotted, thereby forming one of said blank areas; when the dielectric substrate (1) is fixedly arranged on the reflecting plate, the blank area is opposite to one high-frequency radiation unit.
3. A low frequency radiating element as claimed in claim 2, wherein a second of said dipole layers comprises: a third line (121) and a fourth line (122) arranged at intervals; one side of the third line (121) is recessed, and a second transition line (123) extending towards the first dipole layer (11) is arranged on the other side of the third line (121); -coupling between said third line (121) and said fourth line (122) through a second gap (6); -a portion of said fourth line (122) is slotted, thereby forming another of said blank areas; when the dielectric substrate (1) is fixedly arranged on the reflecting plate, the blank area is opposite to the other high-frequency radiation unit.
4. A low frequency radiating element according to claim 3, characterized in that the interior of the support base (3) is hollow, and that a first limit groove (31) and a second limit groove (32) extending in the height direction of the support base (3) are provided in the cavity of the support base (3); the feeding sheet (2) is inserted into the supporting seat (3) and keeps a vertical state between the first limit groove (31) and the second limit groove (32).
5. A low frequency radiating element according to claim 4, characterized in that a slot (33) for limiting the coaxial line (4) is arranged on the side of the supporting seat (3) away from the dielectric substrate (1), and when the feeding sheet (2) is inserted into the supporting seat (3), one end of the coaxial line (4) penetrates into the slot (33) and is fixedly connected with the grounding point.
6. A low frequency radiating element according to claim 3, characterized in that the contour of the grooved section on the second line (112) comprises an gradual line and a fold line; the folding lines are arranged in a step shape, and one side of the long side of each folding line is connected with one end of the asymptote.
7. A low frequency radiating element as claimed in claim 6, characterized in that the length of said first slot (5) is one fifth of the operating frequency of said first dipole layer (11) to one quarter of the operating frequency of said first dipole layer (11); the length of the second gap (6) is one fifth wavelength of the working frequency of the second dipole layer (12) to one quarter wavelength of the working frequency of the second dipole layer (12).
8. A low frequency radiating element as claimed in claim 7, characterized in that the width of the first slit (5) and the second slit (6) is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311224023.6A CN117317582A (en) | 2023-09-21 | 2023-09-21 | Low-frequency radiation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311224023.6A CN117317582A (en) | 2023-09-21 | 2023-09-21 | Low-frequency radiation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117317582A true CN117317582A (en) | 2023-12-29 |
Family
ID=89236514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311224023.6A Pending CN117317582A (en) | 2023-09-21 | 2023-09-21 | Low-frequency radiation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117317582A (en) |
-
2023
- 2023-09-21 CN CN202311224023.6A patent/CN117317582A/en active Pending
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