CN111987466B - Slot antenna and electronic equipment comprising same - Google Patents
Slot antenna and electronic equipment comprising same Download PDFInfo
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- CN111987466B CN111987466B CN201910440053.8A CN201910440053A CN111987466B CN 111987466 B CN111987466 B CN 111987466B CN 201910440053 A CN201910440053 A CN 201910440053A CN 111987466 B CN111987466 B CN 111987466B
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- 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
- H01Q13/10—Resonant slot antennas
- H01Q13/106—Microstrip slot antennas
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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
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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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
- 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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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
Abstract
The invention discloses a slot antenna, comprising: the metal radiation layer is directly coupled with the feed structure, the substrate is an insulating dielectric plate, at least one first gap penetrating through the upper surface and the lower surface of the substrate is formed in the substrate, the feed structure comprises a first feed point and a first grounding point, and the first feed point, the first grounding point and the first gap are in one-to-one correspondence. The invention aims to provide a slot antenna and electronic equipment comprising the slot antenna, which change the structure and the form of the slot antenna by changing the positions and the coupling relation of a metal radiation layer and a feed structure, so that the slot antenna is not limited by the installation position and can be suitable for equipment with a bad wireless environment, such as a full-metal large-screen product and the like.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a slot antenna and an electronic device including the slot antenna.
Background
The slot antenna is an antenna formed by slitting a conductor plane, and is also called a slot antenna.
Fig. 1 shows a prior art slot antenna scheme. As shown in fig. 1, a gap 3 is formed in a metal shell 1, a PCB (printed circuit board) dielectric board 2 is provided on the metal shell 1, a feeding structure 4, 5 is provided on an upper surface of the metal shell 1, a metal radiation layer is provided on a lower surface of the metal shell, and the feeding structure 4, 5 is indirectly coupled with the metal radiation layer, so that a feeding point 6 of the feeding structure is located at an edge of the PCB dielectric board 2, and one end of the gap 3 needs to be opened, that is, as shown in fig. 1, a left end of the gap 3 needs to be located at an edge of the metal shell 1.
Therefore, in the existing slot antenna scheme, one end of the slot needs to be subjected to open-circuit treatment, and the installation position of the slot antenna needs to be located at the edge or the corner of the metal shell, so that the actual requirements of most products cannot be met. Further, the slot antenna of the planar structure is too large in size and high in mounting requirement, and thus occupies too much internal space of the electronic device. In addition, the requirements for the operating frequency of the antenna may be different on different electronic devices, and the existing slot antenna needs to change the feed structure accordingly according to specific requirements, resulting in poor versatility.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a slot antenna and an electronic device including the slot antenna, which change the structure and form of the slot antenna by changing the positions and coupling relationships of a metal radiation layer and a feed structure, so that the slot antenna of the present invention is not limited by the installation position, and can be applied to devices with a poor wireless environment, such as a full-metal large-screen product.
One embodiment of the present invention provides a slot antenna, including:
the lower surface of the substrate is covered with a metal radiation layer and a feed structure, the metal radiation layer is directly coupled with the feed structure, the substrate is an insulating dielectric plate,
the substrate is provided with at least one first gap penetrating through the upper surface and the lower surface of the substrate, the length direction of the first gap is consistent with the length direction of the substrate,
the feed structure comprises a first feed point and a first grounding point, and the first feed point, the first grounding point and the first gap are in one-to-one correspondence.
Preferably, each first feeding point is connected to one side edge of one first slot corresponding to the first feeding point, and each first grounding point is connected to the other side edge of one first slot corresponding to the first grounding point, so as to divide the operating frequency band of the first slot into a first operating frequency band and a second operating frequency band.
Preferably, the feeding structure further comprises: a second feeding point and a second grounding point, the second feeding point and the second grounding point being located on the upper surface of the substrate,
the second feeding points are in one-to-one correspondence with the first feeding points, the second grounding points are in one-to-one correspondence with the first grounding points, each second feeding point is connected with each first feeding point through a metal through hole penetrating through the substrate, and each second grounding point is connected with each first grounding point through a metal through hole penetrating through the substrate.
Preferably, the substrate has a plurality of first slits, and the plurality of first slits are sequentially arranged along a length direction of the substrate.
Preferably, the number of the first gaps is less than three, and the metal radiation layer is grounded, or
The number of the first gaps is more than or equal to three, and the metal radiation layer is not grounded.
Preferably, each of the first slits includes a plurality of sub-slits arranged side by side, the plurality of sub-slits arranged side by side being arranged in parallel in a width direction of the substrate.
Preferably, the first feeding point corresponding to the first slot is connected to one side of one of the sub-slots, and the first ground point corresponding to the first slot is connected to the other side of one of the sub-slots.
Preferably, the edge of the substrate further comprises a fool-proof structure.
Another embodiment of the present invention also provides an electronic device, comprising a housing and a slot antenna as described above,
the inner surface of the shell is provided with a sinking platform and a second gap, the sinking platform is provided with a shape corresponding to the substrate, and the shape and the position of the second gap correspond to the shape and the position of the first gap;
the slot antenna is mounted with its lower surface in a sinking platform.
Preferably, the length of the second slit is equal to or greater than the length of the first slit.
According to the technical scheme, the metal radiation layer and the feed structure are located on the same side surface of the substrate, and the metal radiation layer and the feed structure are directly coupled without being indirectly coupled by means of the edge position of the substrate, so that the slot antenna of the embodiment is not limited by the installation position and can be suitable for various installation positions.
Furthermore, the first grounding point and the first feeding point are directly connected with two side edges of the first slot, and the first grounding point and the first feeding point are arranged at the middle position of the first slot in the length direction, so that the working frequency band of the slot antenna can be divided into two working frequency bands by one working frequency band, the antenna of the embodiment can cover multiple frequency bands, such as the frequency band of 2.5&5GHz, and the requirements of most products are met. In addition, the antenna forms of the two working frequency bands are closed-loop antennas, so that the slot antenna of the embodiment does not need to be subjected to open-circuit treatment, does not need to be arranged at the edge of a product, and can be suitable for some devices with severe wireless environments, such as all-metal large-screen products.
In addition, the length direction of the first gap is consistent with the length direction of the substrate, so that the substrate can be formed to be slender, and the substrate can be conveniently arranged at any vacant position inside or outside the electronic device due to the small width dimension, and the universality is stronger.
Drawings
The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.
Fig. 1 is a schematic structural diagram of a conventional slot antenna.
Fig. 2 is a top view of the slot antenna of the present invention.
Fig. 3 is a bottom view of the slot antenna of the present invention.
Fig. 4 is a side view of the slot antenna of the present invention.
Figure 5 is a top view of one embodiment of a slot antenna of the present invention.
Fig. 6 is a top view of another embodiment of a slot antenna of the present invention.
Fig. 7 is a schematic structural diagram of the electronic device of the present invention.
Fig. 8 is a schematic view of the structure of the housing in fig. 7.
Fig. 9 is a S11 return loss diagram of the slot antenna of the present invention.
Fig. 10 is an antenna radiation pattern of the slot antenna of the present invention in the 2.4GHz band.
Fig. 11 is an antenna radiation pattern of the slot antenna of the present invention at a 5GHz band.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals refer to like parts throughout.
"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.
For the sake of simplicity, the drawings are only schematic representations of the parts relevant to the invention, and do not represent the actual structure of the product. Moreover, in the interest of brevity and understanding, only one of the components having the same structure or function is illustrated schematically or designated in some of the drawings.
In order to solve the problem that the slot antenna cannot be applied to most devices because one end of the slot antenna needs to be subjected to open-circuit treatment and the antenna needs to be installed at the edge of the electronic device, the invention provides the slot antenna, which changes the structure and the form of the slot antenna by changing the positions and the coupling relation of a metal radiation layer and a feed structure, so that the slot antenna is not limited by the installation position and can be applied to devices with severe wireless environment, such as all-metal large-screen products and the like.
Fig. 2 is a top view of the slot antenna of the present invention. Fig. 3 is a bottom view of the slot antenna of the present invention. Fig. 4 is a side view of the slot antenna of the present invention. As shown in fig. 2 to 4, an embodiment of the present invention provides a slot antenna, including:
the metal radiation layer 201 and the feed structure are covered on the lower surface of the substrate 304, the metal radiation layer 201 is directly coupled with the feed structure, the substrate 304 is an insulating dielectric plate, at least one first slot 101, 102 and 103 penetrating through the upper surface and the lower surface of the substrate 304 is formed in the substrate 304, and the length direction of the first slot 101, 102 and 103 is consistent with the length direction of the substrate 304.
The feeding structure comprises first feeding points 202, 203, 204 and first grounding points 205, 206, 207, the first feeding points 202, 203, 204, the first grounding points 205, 206, 207 and the first slots 101, 102, 103 are in one-to-one correspondence.
In this embodiment, the metal radiation layer 201 and the feeding structure are located on the same side surface of the substrate 304, and the metal radiation layer 201 and the feeding structure are directly coupled without performing indirect coupling via an edge position of the substrate 304, so that the slot antenna of this embodiment may not be limited by a mounting position and may be suitable for various mounting positions.
The slot antenna in the embodiment shown in fig. 2 to 4 includes three slots, where each slot, its corresponding metal radiation layer, and its corresponding feed structure form an independent antenna structure, and the three antenna structures are combined to form a slot antenna. Specifically, the slot antenna of the present embodiment is composed of three antennas, the first slot 101, the first feeding point 202, and the first grounding point 205 form one antenna structure, the first slot 102, the first feeding point 203, and the first grounding point 206 form one antenna structure, and the first slot 103, the first feeding point 204, and the first grounding point 207 form one antenna structure. The three antenna structures share one substrate 304 and the metal radiating layer 201.
In the embodiment of the present invention, as shown in fig. 2 to 4, a plurality of slots may be disposed on one substrate 304 to form one slot antenna in combination, or as shown in fig. 5, only one first slot 101 may be included on the substrate 304. The number of the first gaps can be set according to specific frequency bands and power requirements of products.
Further, in the present embodiment, the length direction of the first slits 101, 102, 103 coincides with the length direction of the substrate 304, and thus the substrate 304 may be formed in an elongated shape, and since the width dimension thereof is small, it may be conveniently disposed at any vacant position inside or outside the electronic apparatus, and the versatility is stronger. Specifically, the substrate 304 has a plurality of first slits 101, 102, 103, and the plurality of first slits 101, 102, 103 are arranged in sequence along the length direction of the substrate 304, thereby forming an elongated shape.
Preferably, as shown in fig. 3, each first feeding point 202, 203, 204 is connected to one side of a corresponding one of the first slots 101, 102, 103, and each first grounding point 205, 206, 207 is connected to the other side of the corresponding one of the first slots 101, 102, 103, so as to divide the operating frequency band of the first slot 101, 102, 103 into a first operating frequency band and a second operating frequency band.
Taking the first slot 101 as an example, the first grounding point 205 and the first feeding point 202 are not located at the edge of the first slot 101 in the length direction, but located at a certain position in the middle of the first slot in the length direction, and the first grounding point 205 and the first feeding point 202 are opposite to each other, so that the first grounding point 205, the first feeding point 202 and the gap at one end therebetween form a first operating frequency band, and the first grounding point 205, the first feeding point 202 and the gap at the other end therebetween form a second operating frequency band.
Therefore, the first grounding point and the first feeding point are directly connected with the two side edges of the first slot, and the first grounding point and the first feeding point are arranged at the middle position of the first slot in the length direction, so that the working frequency band of the slot antenna can be divided into two by one, the antenna of the embodiment can cover multiple frequency bands, such as the 2.5&5GHz frequency band, and the requirements of most products are met. In addition, the antenna forms of the two working frequency bands are closed-loop antennas, so that the slot antenna of the embodiment does not need to be subjected to open-circuit treatment, does not need to be arranged at the edge of a product, and can be suitable for some devices with severe wireless environments, such as all-metal large-screen products.
The first grounding point and the first feeding point are not necessarily opposite, the position of the first feeding point determines the working frequency band of the first gap, and the position of the first grounding point can be adjusted to adapt to the outgoing line mode of the product and the adjustment of the working frequency band. Further, the length of the first slot may also be fine-tuned, for example, when the operating frequency band is low, the length of the first slot may be shortened, so as to improve the operating frequency band of the antenna.
In a specific embodiment, the slot antenna of the present embodiment may be implemented with a mounting size of 10 × 65mm to cover the 2.5&5ghz band, and the size of the first slot may be selected to be 56mm long and 2mm wide.
Preferably, as shown in fig. 2, the feeding structure further includes: the second feeding points 107, 108, 109 and the second grounding points 110, 111, 112, the second feeding points 107, 108, 109 and the second grounding points 110, 111, 112 being located on the upper surface of the substrate 304.
The second feeding points 107, 108, 109 are in one-to-one correspondence with the first feeding points 202, 203, 204, the second grounding points 110, 111, 112 are in one-to-one correspondence with the first grounding points 205, 206, 207, each of the second feeding points 107, 108, 109 is connected with the first feeding points 202, 203, 204 through metal through holes 301, 302, 303 penetrating the upper and lower surfaces of the substrate 304, and each of the second grounding points 110, 111, 112 is connected with the first grounding points 205, 206, 207 through metal through holes 301, 302, 303 penetrating the upper and lower surfaces of the substrate 304.
That is, in the present embodiment, the feeding structure on the lower surface is extended to the upper surface of the substrate 304 through the metal via hole, so the positions and numbers of the second feeding points 107, 108, 109 and the first feeding points 202, 203, 204 correspond, and the positions and numbers of the second grounding points 110, 111, 112 and the first grounding points 205, 206, 207 also correspond. In general, the lower surface of the substrate 304 is a mounting surface, and in this embodiment, since the metal radiation layer and the feeding structure are both disposed on the lower surface of the substrate 304, this increases difficulty in subsequent mounting and connection. Accordingly, the present embodiment of introducing the feed structure to the upper surface of the substrate 304 may facilitate the soldering operation of the feed structure with other structures. Further, since the introduction of the feeding structure to the upper surface of the substrate 304 results in convenience of the soldering operation, the requirement of the slot antenna of the present embodiment for its mounting position in the electronic apparatus is further reduced.
Since the area of the substrate 304 other than the first slits can be used as the ground area, for example, the area between two adjacent first slits in the longitudinal direction, or the area on both sides of the first slits in the width direction, etc. In the case where a plurality of slits are included in one substrate in this embodiment, when the number of the first slits is sufficiently large, the area of the substrate 304 other than the first slits as the ground is sufficiently large, and the metal radiation layer 201 on the substrate 304 does not need to be additionally grounded. Specifically, when the number of the first slots 101, 102, 103 is less than three, the metal radiation layer 201 needs to be in conduction with the ground plane of the electronic device, and when the number of the first slots 101, 102, 103 is greater than or equal to three, the metal radiation layer 201 may not need to be in conduction with the ground plane of the electronic device. Therefore, the present embodiment includes a plurality of slots on one substrate, which not only helps to improve the antenna performance, but also reduces the number of connection wires of the slot antenna.
Further, in a preferred embodiment, as shown in fig. 6, each of the first slits 101 may include a plurality of sub-slits 101a, 101b, 101c arranged side by side, and the plurality of sub-slits 101a, 101b, 101c arranged side by side are arranged in parallel in a width direction of the substrate 304. As shown in fig. 6, the plurality of sub slots 101a, 101b, 101c arranged side by side achieve the effect of one first slot 101 through coupling to achieve better antenna performance. The length direction of each sub slot is also arranged along the length direction of the substrate 304, and the width of each sub slot is very narrow, so that the widths of the sub slots arranged side by side cannot be excessively increased, and the requirements on the installation position of the slot antenna can be reduced on the basis of improving the antenna performance.
Preferably, the first feeding point 202 corresponding to the first slot 101 is connected to one side of one of the sub-slots 101a, and the first grounding point 205 corresponding to the first slot 101 is connected to the other side of the sub-slot 101 a. Here, the first slot 101 is taken as an example for explanation, and if the slot antenna includes a plurality of first slots, the other first slots are the same as the first slot 101. Here, the first feeding point and the first grounding point are connected to the sub slot 101a as an example, it is understood that the first feeding point and the first grounding point may also be connected to the sub slot 101b or the sub slot 101c, that is, since the plurality of sub slots arranged side by side achieve the effect of one first slot 101 through coupling, the feeding structure corresponding to the first slot 101 may be connected to only one sub slot 101a, and therefore, the scheme of coupling the plurality of sub slots not only can improve the antenna performance, but also can simplify the connection structure of the slot antenna and reduce the number of connection lines of the slot antenna.
Preferably, as shown in FIG. 2, the edge of the base plate 304 further includes a fool-proof structure for snap-fitting with a surface to which it is mounted to prevent mounting errors and the like. The fool-proof structure may include a boss 104 protruding from an edge of the substrate 304, and may also include positioning holes 105 and 106, where the positioning holes 105 and 106 may be located in a middle position of the substrate 304, or located at an edge position of the substrate 304, and may be a circular hole, a half-hole, or other forms. In one embodiment, the thickness of the fool-proof structure may be selected to be 1mm.
Another embodiment of the present invention also provides an electronic device, as shown in fig. 7 and 8, including a housing 1000 and the slot antenna as described above. Wherein, the inner surface of the housing 1000 has a sunken platform 1001 and a second gap 1002, the sunken platform 1001 has a shape corresponding to the substrate 304, and the shape and position of the second gap 1002 correspond to the shape and position of the first gaps 101, 102, 103; the slot antenna is mounted with its lower surface in the caisson 1001.
Further, when the substrate 304 of the slot antenna has the fool-proof structure 104, the sinking platform 1001 also has a corresponding fool-proof structure 1003 to facilitate the installation and positioning of the slot antenna.
Preferably, the length of the second slot 1002 is equal to or greater than the length of the first slots 101, 102, 103.
As can be seen from the embodiments shown in the drawings, the slot antenna in the present embodiment does not need to be disposed at the corner portion of the device when mounted, as in the case of the slot antenna of the planar shape in the related art, in order to satisfy the requirement of the open circuit process, but may be disposed at any position on the inner surface of the housing 1000.
Fig. 9 is a return loss diagram of S11 of the slot antenna of this embodiment, where S11 of the antenna is less than-10 dB in the operating frequency band of 2.4&5GHz, fig. 10 is an antenna radiation pattern of the 2.4GHz band, fig. 11 is an antenna radiation pattern of the 5GHz band, and the maximum gain of the antenna is above 3 dB.
In this document, "a" does not mean that the number of the relevant portions of the present invention is limited to "only one", and "a" does not mean that the number of the relevant portions of the present invention "more than one" is excluded.
Unless otherwise indicated, numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges subsumed therein.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention and is not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of the features without departing from the technical spirit of the present invention are included in the scope of the present invention.
Claims (9)
1. A slot antenna, comprising:
a substrate (304), wherein the lower surface of the substrate (304) covers the metal radiation layer (201) and the feed structure, the metal radiation layer (201) and the feed structure are directly coupled, the substrate (304) is an insulating dielectric plate,
the substrate (304) is provided with at least one first gap (101, 102, 103) penetrating through the upper surface and the lower surface of the substrate (304), the length direction of the first gap (101, 102, 103) is consistent with the length direction of the substrate (304),
the feeding structure comprises a first feeding point (202, 203, 204) and a first grounding point (205, 206, 207), wherein the first feeding point (202, 203, 204) and the first grounding point (205, 206, 207) correspond to the first gaps (101, 102, 103) in a one-to-one manner;
each first feeding point (202, 203, 204) is connected with one side of a corresponding first slot (101, 102, 103), and each first grounding point (205, 206, 207) is connected with the other side of a corresponding first slot (101, 102, 103) so as to divide the working frequency band of the first slot (101, 102, 103) into a first working frequency band and a second working frequency band;
the first grounding point (205, 206, 207) and the first feeding point (202, 203, 204) are not necessarily opposite, and the position of the first feeding point (202, 203, 204) divides the operating frequency band of the first slot (101, 102, 103) into a first operating frequency band and a second operating frequency band.
2. The slot antenna of claim 1, wherein the feed structure further comprises: a second feeding point (107, 108, 109) and a second grounding point (110, 111, 112), the second feeding point (107, 108, 109) and the second grounding point (110, 111, 112) being located on an upper surface of the substrate (304),
the second feeding points (107, 108, 109) are in one-to-one correspondence with the first feeding points (202, 203, 204), the second grounding points (110, 111, 112) are in one-to-one correspondence with the first grounding points (205, 206, 207), each of the second feeding points (107, 108, 109) and the first feeding points (202, 203, 204) is connected by a metal via penetrating the substrate (304), and each of the second grounding points (110, 111, 112) and the first grounding points (205, 206, 207) is connected by a metal via penetrating the substrate (304).
3. The slot antenna according to claim 1 or 2, wherein the substrate (304) has a plurality of first slots (101, 102, 103), and the plurality of first slots (101, 102, 103) are arranged in sequence along a length direction of the substrate (304).
4. The slot antenna of claim 3,
the number of the first gaps (101, 102, 103) is less than three, and the metal radiation layer (201) is grounded, or
The number of the first gaps (101, 102, 103) is more than or equal to three, and the metal radiation layer (201) is not grounded.
5. The slot antenna according to claim 4, wherein each first slot (101) comprises a plurality of sub-slots (101 a, 101b, 101 c) arranged side by side, the plurality of sub-slots (101 a, 101b, 101 c) arranged side by side being arranged in parallel in a width direction of the substrate (304).
6. The slot antenna according to claim 5, characterized in that the first feeding point (202) corresponding to the first slot (101) is connected to one side of one of the subslots (101 a, 101b, 101 c), and the first grounding point (205) corresponding to the first slot (101) is connected to the other side of the subslot (101 a, 101b, 101 c).
7. The slot antenna of claim 6, wherein the edge of the substrate (304) further comprises a fool-proof structure.
8. An electronic device, characterized in that it comprises a housing (1000) and a slot antenna according to any of claims 1 to 7,
the inner surface of the shell (1000) is provided with a sunken platform (1001) and a second gap (1002), the sunken platform (1001) is provided with a shape corresponding to the substrate (304), and the shape and the position of the second gap (1002) correspond to the shape and the position of the first gap (101, 102, 103);
the slot antenna is mounted with its lower surface in a sinking platform (1001).
9. The electronic device according to claim 8, characterized in that the length of the second slot (1002) is equal to or greater than the length of the first slot (101, 102, 103).
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| CN114759341B (en) * | 2022-03-25 | 2023-06-30 | 杭州海康威视数字技术股份有限公司 | Bandgap structure, antenna assembly, printed circuit board and radar sensor |
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| CN208690478U (en) * | 2018-09-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | Display terminal with built-in antenna |
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| US6806839B2 (en) * | 2002-12-02 | 2004-10-19 | Bae Systems Information And Electronic Systems Integration Inc. | Wide bandwidth flat panel antenna array |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411620A (en) * | 1999-12-16 | 2003-04-16 | 奥根流动电话通讯公司 | Slot antenna device |
| CN208209007U (en) * | 2018-04-08 | 2018-12-07 | 大陆汽车投资（上海）有限公司 | Slot antenna suitable for mobile unit |
| CN208690478U (en) * | 2018-09-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | Display terminal with built-in antenna |
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| CN111987466A (en) | 2020-11-24 |
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