CN109273868B - Antenna and antenna equipment - Google Patents
Antenna and antenna equipment Download PDFInfo
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- CN109273868B CN109273868B CN201811149330.1A CN201811149330A CN109273868B CN 109273868 B CN109273868 B CN 109273868B CN 201811149330 A CN201811149330 A CN 201811149330A CN 109273868 B CN109273868 B CN 109273868B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
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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
- H01Q5/10—Resonant antennas
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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
- 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
Abstract
The invention discloses an antenna, which comprises an antenna body and a PCB (printed Circuit Board), wherein the antenna body comprises a metal plug-in antenna, at least one group of dipole antennas and at least one group of slot antennas; the PCB comprises a top layer and a bottom layer, and a metal grounding plate is arranged at the center of the bottom layer of the PCB; each group of dipole antennas comprises a first dipole arm arranged on the top layer of the PCB and a second dipole arm arranged on the bottom layer of the PCB; each group of slot antennas comprises a microstrip feed line arranged on the top layer of the PCB and a slot antenna floor arranged on the bottom layer of the PCB; the metal plug-in antenna comprises two metal plug-in antennas, and each metal plug-in antenna is arranged on the metal grounding plate. The invention also discloses an antenna device. By adopting the embodiment of the invention, the volume of the antenna can be reduced, the omnidirectional coverage on the working plane can be realized, the assembly is simple, and the cost is low.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to an antenna and antenna equipment.
Background
As shown in fig. 1, the whole module antenna is composed of 8 PCBs, and 3 horizontal polarization antennas of 2.4G (ANT 1, ANT2 and ANT3 in the figure) and 3 horizontal polarization antennas of 5G (ANT 7, ANT8 and ANT9 in the figure) are printed on 2 circular PCBs and located above and below the whole module antenna; the 6 vertical PCBs are printed with 3 2.4G (ANT 4, ANT5 and ANT6 in the figure) and 3 5G (ANT 10, ANT11 and ANT12 in the figure) vertically polarized antennas, respectively, the 2.4G and 5G antennas are staggered by 60 degrees, and the 6 antennas are located in the middle of the 2 circular PCBs. Each frequency band of the hardware is provided with three links, one link consists of a horizontal polarization antenna and a vertical polarization antenna in the same frequency band, the two antennas can realize the complementation of a directional diagram in the horizontal direction, and the three antennas in the same frequency band and the same polarization can also realize the complementation omnidirectional in the horizontal direction.
However, the prior art antenna has the following disadvantages: the volume is large, and the overall size is 92mm by 40 mm; the assembly is complex, the antenna comprises 8 PCBs, the connection among the PCBs is complex, the material cost is high, the welding and assembly are required for multiple times, and the processing cost is high; the coverage range is small, only horizontal omnidirectional coverage can be realized, and vertical coverage and 45-degree elevation coverage scenes cannot be considered at the same time.
Disclosure of Invention
An object of the embodiments of the present invention is to provide an antenna and an antenna apparatus, which can reduce the volume of the antenna and simultaneously realize omnidirectional coverage on a working plane, and are simple to assemble and low in cost.
In order to achieve the above object, an embodiment of the present invention provides an antenna, including an antenna body and a PCB, where the antenna body includes a metal plug antenna, at least one group of dipole antennas, and at least one group of slot antennas; wherein the content of the first and second substances,
the PCB comprises a top layer and a bottom layer, and a metal grounding plate is arranged at the center of the bottom layer of the PCB;
each group of dipole antennas comprises a first dipole arm arranged on the top layer of the PCB and a second dipole arm arranged on the bottom layer of the PCB;
each group of slot antennas comprises a microstrip feed line arranged on the top layer of the PCB and a slot antenna floor arranged on the bottom layer of the PCB;
the metal plug-in antenna comprises two metal plug-in antennas, and each metal plug-in antenna is arranged on the metal grounding plate.
Compared with the prior art, the antenna disclosed by the invention comprises an antenna body and a PCB (printed Circuit Board), wherein the antenna body comprises a metal plug antenna, at least one group of dipole antennas and at least one group of slot antennas; the dipole antenna can cover a horizontal plane, the metal plug-in antenna can cover an elevation angle of 45 degrees, and the slot antenna can cover a vertical plane. The problems of large antenna volume, small coverage area, complex assembly and high cost in the prior art are solved. The antenna disclosed by the invention can reduce the volume of the antenna and simultaneously realize omnidirectional coverage on a working plane, and is simple to assemble and low in cost.
As an improvement of the above scheme, the dipole antenna and the slot antenna are both arranged at the edge of the antenna, and the dipole antenna and the slot antenna are arranged at intervals.
As a modification of the above, the first oscillator arm includes three 2.4G oscillator arms and three 5G oscillator arms, and the second oscillator arm includes three 2.4G oscillator arms and three 5G oscillator arms; wherein the content of the first and second substances,
the arm length of the 2.4G oscillator arm is greater than that of the 5G oscillator arm, and the 2.4G oscillator arm and the 5G oscillator arm are both arc-shaped.
As an improvement of the above scheme, each of the 2.4G dipole arms is disposed at an edge of the dipole antenna, and each of the 5G dipole arms is disposed inside the dipole antenna.
As an improvement of the above scheme, the slot antenna floor comprises a 2.4G slot provided with an opening and a 5G slot not provided with an opening; wherein, the 2.4G gap and the 5G gap are both strip-shaped gaps.
As an improvement of the above scheme, the metal plug-in antenna is a planar inverted F antenna.
As an improvement of the above scheme, the two metal patch antennas are in central symmetry with the center point of the metal ground plate.
As an improvement of the above scheme, the metal grounding plate is a copper sheet; the metal grounding plate is square.
As an improvement of the scheme, the PCB is square.
In order to achieve the above object, an embodiment of the present invention further provides an antenna device, including the antenna described in any of the above embodiments.
Drawings
Fig. 1 is a perspective structural view of an antenna in the prior art;
fig. 2 is a perspective structural view of an antenna according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a top layer 11 of an antenna according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bottom layer 12 of an antenna according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first dipole arm 421 of a dipole antenna 42 in an antenna provided in an embodiment of the present invention;
fig. 6 is a schematic diagram of the overall structure of the dipole antenna 42 in the antenna provided by the embodiment of the present invention;
fig. 7 is a schematic diagram of an operating frequency band of a dipole antenna 4 in an antenna provided in an embodiment of the present invention;
fig. 8 is a two-dimensional radiation pattern of the dipole antenna 4 in the antenna provided by the embodiment of the present invention at the operating frequency band of 2.45 GHz;
fig. 9 is a two-dimensional radiation pattern of the dipole antenna 4 in the antenna provided by the embodiment of the present invention at the operating frequency band of 5.5 GHz;
fig. 10 is a schematic structural diagram of a slot antenna 22 in an antenna according to an embodiment of the present invention;
fig. 11 is a schematic diagram of an operating frequency band of a slot antenna 2 in an antenna according to an embodiment of the present invention;
fig. 12 is a two-dimensional radiation pattern of a slot antenna 2 in an antenna provided in an embodiment of the present invention at an operating frequency band of 2.45GHz and a coverage angle of 0 °;
fig. 13 is a two-dimensional radiation pattern of a slot antenna 2 in an antenna provided in an embodiment of the present invention at an operating frequency band of 2.45GHz and a coverage angle of 90 °;
fig. 14 is a two-dimensional radiation pattern of a slot antenna 2 in an antenna provided in an embodiment of the present invention at an operating frequency band of 5.5GHz and a coverage angle of 0 °;
fig. 15 is a two-dimensional radiation pattern of the slot antenna 2 in the antenna provided by the embodiment of the present invention at an operating frequency band of 5.5GHz and a coverage angle of 90 °;
fig. 16 is a schematic diagram of a position of a metal insert antenna 3 in an antenna according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a metal insert antenna 32 in an antenna according to an embodiment of the present invention;
fig. 18 is a schematic operating frequency band diagram of a metal plug antenna 3 in an antenna according to an embodiment of the present invention;
fig. 19 is a two-dimensional radiation pattern of the metal patch antenna 3 in the antenna provided in the embodiment of the present invention at the operating frequency band of 2.45 GHz;
fig. 20 is a two-dimensional radiation pattern of the metal patch antenna 3 in the antenna provided in the embodiment of the present invention at an operating frequency band of 5.5 GHz.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, fig. 2 is a perspective structural view of an antenna according to an embodiment of the present invention; the antenna comprises an antenna body and a PCB (printed Circuit Board) 1, wherein the antenna body comprises a metal plug antenna 3, at least one group of dipole antennas 4 and at least one group of slot antennas 2; wherein the content of the first and second substances,
the PCB board 1 comprises a top layer 11 and a bottom layer 12, and a metal grounding plate 5 is arranged at the center of the bottom layer 12 of the PCB board 1;
each group of dipole antennas 4 comprises a first dipole arm arranged on the top layer 11 of the PCB 1 and a second dipole arm arranged on the bottom layer 12 of the PCB 1;
each group of the slot antennas 2 comprises a microstrip feed line arranged on the top layer 11 of the PCB board 1 and a slot antenna floor arranged on the bottom layer 12 of the PCB board 1;
the number of the metal plug-in antennas 3 is two, and each metal plug-in antenna 3 is arranged on the metal ground plate 5.
Preferably, the dipole antenna 4 and the slot antenna 2 are both arranged at the edge of the antenna, and the dipole antenna 4 and the slot antenna 2 are arranged at intervals. The two metal plug-in antennas 3 are in central symmetry with the center point of the metal ground plate 5. It should be noted that, in the embodiment of the present invention, the dipole antenna 4 is a horizontally polarized dipole array, and the number of the dipole antenna 4, the slot antenna 2 and the metal insert antenna 3 is two, but in other embodiments, the number of the dipole antenna 4, the slot antenna 2 and the metal insert antenna 3 may be set according to the performance of the antenna, and all of them are within the protection scope of the present invention.
As shown in fig. 2, the antennas include a slot antenna 2 (slot antenna 21 and slot antenna 22), a metal insert antenna 3 (metal insert antenna 31 and metal insert antenna 32), and a dipole antenna 4 (dipole antenna 41 and dipole antenna 42). The dipole antenna 4 can cover a horizontal plane, the metal plug antenna 3 can cover an elevation angle of 45 degrees, and the slot antenna 2 can cover a vertical plane. The coordinate axis xyz shown in fig. 2 represents a working plane of the antenna, and the antenna can realize half-plane omni-directional coverage.
Preferably, the antenna is applied to an indoor AP product, the working frequency band of the antenna is 2.4GHz-2.5GHz and 5.15GHz-5.85GHz, and double-frequency working can be realized. The metal grounding plate 5 is a copper sheet; the metal grounding plate 5 is square. The PCB board 1 is square.
Preferably, referring to fig. 3 and 4, the top layer 11 and the bottom layer 12 of the antenna are schematically constructed; the dipole antenna 41 comprises a first dipole arm 411 arranged on the top layer 11 of the PCB 1 and a second dipole arm 412 arranged on the bottom layer 12 of the PCB 1; the dipole antenna 42 comprises a first dipole arm 421 arranged on the top layer 11 of the PCB board 1 and a second dipole arm 422 arranged on the bottom layer 12 of the PCB board 1;
the slot antenna 21 comprises a microstrip feed line 211 arranged on the top layer 11 of the PCB board 1 and a slot antenna floor 212 arranged on the bottom layer 12 of the PCB board 1; the slot antenna 22 includes a microstrip feed line 221 disposed on the top layer 11 of the PCB board 1 and a slot antenna floor 222 disposed on the bottom layer 12 of the PCB board 1.
Preferably, taking the dipole antenna 42 as an example, the structure of the dipole antenna 41 is the same as that of the dipole antenna 42. Referring to fig. 5, fig. 5 is a schematic structural diagram of a first dipole arm 421 of a dipole antenna 42 in an antenna provided in an embodiment of the present invention; the first oscillator arm 421 includes three 2.4G oscillator arms 4a and three 5G oscillator arms 4b, the arm length of the 2.4G oscillator arm 4a is greater than the arm length of the 5G oscillator arm 4b, and the 2.4G oscillator arm 4a and the 5G oscillator arm 4b are both arc-shaped. Further, the second oscillator arm 422 includes three 2.4G oscillator arms 4a and three 5G oscillator arms 4 b.
It should be noted that the first dipole arm 421 and the second dipole arm 422 of the dipole antenna 42 have the same structure and are respectively disposed on the top layer 11 and the bottom layer 12 of the antenna, see fig. 6, where fig. 6 is a schematic diagram of an overall structure of the dipole antenna 42 in the antenna provided by the embodiment of the present invention; the first dipole arm 421 and the second dipole arm 422 jointly form the dipole antenna 42, each of the 2.4G dipole arms 4a is disposed at an edge of the dipole antenna 42, and each of the 5G dipole arms 4b is disposed inside the dipole antenna 42.
The dipole antenna 42 is composed of three double-frequency dipoles, and the three double-frequency dipoles perform equal-amplitude in-phase feeding through a one-to-three power dividing circuit. The peripheral part of the oscillator is longer, namely the 2.4G oscillator arm 4a, the 2.4G oscillator arm 4a can realize resonance of a 2.4G frequency band, and the arm formed by the 2.4G oscillator arm 4a in the first oscillator arm 421 and the second oscillator arm 422 is about 24mm long and 1.8mm wide; the periphery is shorter promptly 5G oscillator arm 4b, 5G oscillator arm 4b realizes the resonance of 5G frequency channel, the arm length that first oscillator arm 421 and 5G oscillator arm 4b constitutes in the second oscillator arm 422 is about 6.6mm, wide 3 mm. In addition, the 2.4G dipole arm 4a adopts a folded structure 400 (i.e. the 2.4G dipole arms 4a on the top layer 11 and the bottom layer 12 are partially overlapped), so that the arm length of the 2.4G dipole arm 4a can be effectively compressed, and the occupied area of the antenna can be relatively reduced by making the 2.4G dipole arm 4a and the 5G dipole arm 4b into a circular arc form.
Further, referring to fig. 7, fig. 7 is a schematic diagram of an operating frequency band of a dipole antenna 4 in an antenna according to an embodiment of the present invention. In the figure, S11 and S22 are return losses of the dipole antenna 41 and the dipole antenna 42, respectively, and S21 is an isolation between the dipole antenna 41 and the dipole antenna 42. The two frequency bands of 2.4GHz-2.5GHz and 5.15GHz-5.85GH are working frequency bands of the antenna, the return loss of the dipole antenna 41 in the two frequency bands is less than-10 dB, and the in-band gain is more than 3 dBi; the return loss of the dipole antenna 42 in two frequency bands is less than-10 dB, and the in-band gain is more than 4 dBi. In the working frequency band, the isolation between the dipole antenna 41 and the dipole antenna 42 can reach below-23 dB.
In the operating frequency band of 2.45GHz, the dipole antenna 4 can cover a horizontal plane, and the two-dimensional radiation patterns of the dipole antenna 41 and the dipole antenna 42 in the operating plane (horizontal plane) are as shown in fig. 8. At the operating frequency band of 5.5GHz, the dipole antenna 4 can cover a horizontal plane, and the two-dimensional radiation patterns of the dipole antenna 41 and the dipole antenna 42 in the operating plane (horizontal plane) are as shown in fig. 9.
Preferably, taking the slot antenna 22 as an example, the structure of the slot antenna 21 is the same as that of the slot antenna 22. Referring to fig. 10, fig. 10 is a schematic structural diagram of a slot antenna 22 in an antenna according to an embodiment of the present invention; the slot antenna 22 comprises a microstrip feed line 221 arranged on the top layer 11 of the PCB board 1 and a slot antenna floor 222 arranged on the bottom layer 12 of the PCB board 1; the slot antenna floor 222 includes a 2.4G slot 2a provided with an opening and a 5G slot 2b not provided with an opening; wherein, the 2.4G gap 2a and the 5G gap 2b are both strip-shaped gaps. The microstrip line length of the microstrip feed line 221 is 15.5mm, and the width is 1.5 mm; the length of the slot antenna floor 222 is 37mm, and the width thereof is 19 mm; the tail end of the 2.4G slot 2a is open-circuited to shorten the slot length, so that the overall size of the antenna can be reduced, and the slot length of the 2.4G slot 2a is 17mm and the slot width is 3 mm; the end of the gap of the 5G gap 2b is short-circuited, and the length of the gap of the 5G gap 2b is 17mm, and the width of the gap is 4 mm.
Further, referring to fig. 11, fig. 11 is a schematic diagram of an operating frequency band of the slot antenna 2 in the antenna according to the embodiment of the present invention. In the figure, S11 and S22 are return losses of the slot antenna 21 and the slot antenna 22, respectively, and S21 is an isolation between the slot antenna 21 and the slot antenna 22. According to 2.4GHz-2.5GHz and 5.15GHz-5.85GH as the working frequency bands of the antenna, the return loss of the slot antenna 21 in the two frequency bands is less than-10 dB, and the in-band gain is more than 3 dBi; the return loss of the slot antenna 22 in two frequency bands is less than-10 dB, and the in-band gain is more than 3 dBi. In the working frequency band, the isolation between the slot antenna 21 and the slot antenna 22 can reach below-29 dB.
In the operating frequency band of 2.45GHz, the two-dimensional radiation patterns of the slot antennas 21 and 22 in the operating planes (vertical direction, coverage angle Φ equal to 0 °) are shown in fig. 12, and the two-dimensional radiation patterns of the slot antennas 21 and 22 in the operating planes (vertical direction, coverage angle Φ equal to 90 °) are shown in fig. 13. In the 5.5GHz operating band, the two-dimensional radiation patterns of the slot antennas 21 and 22 in the operating planes (vertical direction, coverage angle Φ equal to 0 °) are shown in fig. 14, and the two-dimensional radiation patterns of the slot antennas 21 and 22 in the operating planes (vertical direction, coverage angle Φ equal to 90 °) are shown in fig. 15.
Preferably, referring to fig. 16, fig. 16 is a schematic diagram of a position of the metal insert antenna 3 in the antenna provided by the embodiment of the present invention; the metal plug antenna 3 includes two metal plugs 31 and 32. The metal patch antenna 31 and the metal patch antenna 32 are centrosymmetric with respect to a center point of the metal ground plate 5. The metal patch Antenna 31 and the metal patch Antenna 32 are Planar Inverted-F antennas (PIFAs).
Preferably, the size of the metal ground plate 5 is 60mm by 60mm, and the antenna isolation between the metal patch antenna 31 and the metal patch antenna 32 is improved by enlarging the distance between the metal patch antenna 31 and the metal patch antenna 32 and pattern diversity. Antenna isolation refers to the ratio of the signal transmitted by one antenna to the signal received by the other antenna. The larger the antenna spacing, the smaller the ratio will be; the smaller the pattern correlation (pattern diversity), the smaller the ratio will be.
The metal patch antenna 3 may be any dual-band patch antenna capable of achieving coverage at an elevation angle of 45 °, and in the embodiment of the present invention, the metal patch antenna 3 is a planar inverted-F antenna, but in other embodiments, the metal patch antenna 3 may be any dual-band patch antenna capable of achieving coverage at an elevation angle of 45 °, for example, the metal patch antenna 3 is a metal monopole, which is within the protection scope of the present invention.
Specifically, taking the metal card antenna 32 as an example, the structure of the metal card antenna 31 is the same as that of the metal card antenna 32, see fig. 17, and fig. 17 is a schematic structural diagram of the metal card antenna 32 in the antenna provided in the embodiment of the present invention; the metal patch antenna 32 includes a 2.4G resonant portion 321 and a 5G resonant portion 322. The 2.4G resonant portion 321 is the radiating top sheet portion of a typical PI FA, with an electrical length of about 1/4 wavelengths; the 5G resonance part 322 is formed by adding 5G branches at the PI FA feed pin to generate resonance, and can be regarded as a monopole structure, and the electrical length is also 1/4 wavelengths.
Further, referring to fig. 18, fig. 18 is a schematic diagram of an operating frequency band of a metal plug-in antenna 3 in an antenna according to an embodiment of the present invention. In the figure, S11 and S22 are return losses of the metal patch antenna 31 and the metal patch antenna 32, respectively, and S21 is an isolation between the metal patch antenna 31 and the metal patch antenna 32. According to the working frequency bands of the antenna, 2.4GHz-2.5GHz and 5.15GHz-5.85GH are adopted, the return loss of the metal plug-in antenna 31 in the two frequency bands is smaller than-10 dB, and the in-band gain is more than 3 dBi; the return loss of the metal plug-in antenna 32 in two frequency bands is less than-10 dB, and the in-band gain is more than 4 dBi. In the working frequency band, the isolation between the metal plug-in antenna 31 and the metal plug-in antenna 32 can reach below-20 dB.
In the operating band of 2.45GHz, the two-dimensional radiation patterns of the metal patch antenna 31 and the metal patch antenna 32 in the operating plane (the elevation angle θ is 45 °) are shown in fig. 19. In the 5.5GHz operating band, the two-dimensional radiation patterns of the metal patch antenna 31 and the metal patch antenna 32 in their operating planes (the elevation angle θ is 45 °) are as shown in fig. 20.
Specifically, two-dimensional radiation patterns of the dipole antenna 4, the slot antenna 2 and the metal plug antenna 3 in the working frequency bands of 2.45GHz and 5.5GHz are considered in a combined manner. And a standard value of good radiation can be selected, so that the antenna can realize 360-degree all-directional coverage and has better radiation in the axial direction.
Compared with the prior art, the antenna disclosed by the invention comprises an antenna body and a PCB (printed Circuit Board) 1, wherein the antenna body comprises a metal plug antenna 3, at least one group of dipole antennas 4 and at least one group of slot antennas 2; the dipole antenna 4 can cover a horizontal plane, the metal plug-in antenna 3 can cover an elevation angle of 45 degrees, and the slot antenna 2 can cover a vertical plane. The problems of large antenna volume, small coverage area, complex assembly and high cost in the prior art are solved. The antenna disclosed by the invention can reduce the volume of the antenna and simultaneously realize omnidirectional coverage on a working plane, and is simple to assemble and low in cost.
The antenna provided by the embodiment of the invention has the following beneficial effects: the size is small, the size of the whole antenna is about 143mm by 1mm, the height of the section is greatly reduced, and the antenna is suitable for being used on a miniaturized indoor AP product; the structure is simple, the whole system only comprises one PCB and two metal plug-in antennas 3, and the material cost and the processing cost are greatly reduced; the six antennas (the slot antenna 21, the slot antenna 22, the metal plug-in antenna 31, the metal plug-in antenna 32, the dipole antenna 41 and the dipole antenna 42) can realize omnidirectional multi-angle coverage, each antenna can respectively realize omnidirectional coverage on a working plane (horizontal, elevation angle 45 degrees and vertical), namely the whole antenna can realize omnidirectional coverage at multiple angles, and the antenna which is vertically (axially) radiated has higher gain as seen from a two-dimensional radiation pattern, so that the antenna has better performance in the axial direction; the antenna provided by the embodiment of the invention solves the problem that the performance of the indoor AP in the horizontal and vertical directions is poor in the past, and enables the product to realize half-plane all-directional coverage.
An embodiment of the present invention further provides an antenna device, including the antenna provided in the foregoing embodiment of the present invention, and a specific structure of the antenna may refer to the description of the antenna provided in the foregoing embodiment of the present invention, which is not described herein again.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. The antenna is characterized by comprising an antenna body and a PCB, wherein the antenna body comprises a metal plug antenna, at least one group of dipole antennas and at least one group of slot antennas; wherein the content of the first and second substances,
the PCB comprises a top layer and a bottom layer, and a metal grounding plate is arranged at the center of the bottom layer of the PCB;
each group of dipole antennas comprises a first dipole arm arranged on the top layer of the PCB and a second dipole arm arranged on the bottom layer of the PCB;
each group of slot antennas comprises a microstrip feed line arranged on the top layer of the PCB and a slot antenna floor arranged on the bottom layer of the PCB;
the dipole antenna and the slot antenna are arranged at the edge of the antenna, and are arranged at intervals;
the metal plug-in antenna comprises two metal plug-in antennas, each metal plug-in antenna is arranged on the metal grounding plate, and the two metal plug-in antennas are in central symmetry with the central point of the metal grounding plate.
2. The antenna of claim 1, wherein the first dipole arm comprises three 2.4G dipole arms and three 5G dipole arms, and the second dipole arm comprises three 2.4G dipole arms and three 5G dipole arms; wherein the content of the first and second substances,
the arm length of the 2.4G oscillator arm is greater than that of the 5G oscillator arm, and the 2.4G oscillator arm and the 5G oscillator arm are both arc-shaped.
3. The antenna of claim 2, wherein each of the 2.4G dipole arms is disposed at an edge of the dipole antenna, and each of the 5G dipole arms is disposed inside the dipole antenna.
4. The antenna of claim 1, wherein the slot antenna floor comprises a 2.4G slot with an opening and a 5G slot without an opening; wherein, the 2.4G gap and the 5G gap are both strip-shaped gaps.
5. The antenna of claim 1, wherein the metal patch antenna is a planar inverted-F antenna.
6. The antenna of claim 1, wherein the metallic ground plane is a copper sheet; the metal grounding plate is square.
7. The antenna of claim 1, wherein the PCB board is square.
8. An antenna device comprising an antenna according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149330.1A CN109273868B (en) | 2018-09-29 | 2018-09-29 | Antenna and antenna equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149330.1A CN109273868B (en) | 2018-09-29 | 2018-09-29 | Antenna and antenna equipment |
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| CN109273868A CN109273868A (en) | 2019-01-25 |
| CN109273868B true CN109273868B (en) | 2020-10-02 |
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| CN201811149330.1A Active CN109273868B (en) | 2018-09-29 | 2018-09-29 | Antenna and antenna equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6367090A (en) * | 1988-05-10 | 1991-01-03 | Comsat Corporation | Dual-polarized printed circuit antenna having its elements capacitively coupled to feedlines |
| CN103606757A (en) * | 2013-11-16 | 2014-02-26 | 华中科技大学 | A double-frequency dual-polarized antenna array |
| CN103268984B (en) * | 2013-05-31 | 2015-01-07 | 哈尔滨工业大学 | Double-wave-beam slot array antenna |
| CN105206946A (en) * | 2015-10-13 | 2015-12-30 | 中国铁塔股份有限公司 | Indoor dual-polarization omnibearing ceiling antenna |
| CN205790338U (en) * | 2016-05-20 | 2016-12-07 | 黄桂贤 | Anneta module device |
| JP2017526271A (en) * | 2015-01-16 | 2017-09-07 | 株式会社東芝 | antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191647Y (en) * | 2008-05-13 | 2009-02-04 | 华南理工大学 | RFID electronic label antenna having dual T type slot radiation element |
| CN201616506U (en) * | 2010-03-26 | 2010-10-27 | 华为终端有限公司 | Mobile communication antenna equipment and mobile communication terminal equipment |
-
2018
- 2018-09-29 CN CN201811149330.1A patent/CN109273868B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6367090A (en) * | 1988-05-10 | 1991-01-03 | Comsat Corporation | Dual-polarized printed circuit antenna having its elements capacitively coupled to feedlines |
| CN103268984B (en) * | 2013-05-31 | 2015-01-07 | 哈尔滨工业大学 | Double-wave-beam slot array antenna |
| CN103606757A (en) * | 2013-11-16 | 2014-02-26 | 华中科技大学 | A double-frequency dual-polarized antenna array |
| JP2017526271A (en) * | 2015-01-16 | 2017-09-07 | 株式会社東芝 | antenna |
| CN105206946A (en) * | 2015-10-13 | 2015-12-30 | 中国铁塔股份有限公司 | Indoor dual-polarization omnibearing ceiling antenna |
| CN205790338U (en) * | 2016-05-20 | 2016-12-07 | 黄桂贤 | Anneta module device |
Non-Patent Citations (3)
| Title |
|---|
| A bandwidth analysis using Broadband Dual-Polarization and Stable-Beam width Slot Antenna Fed by U-Shape Micro strip Line;Manivasagam Srinivasan 等;《 International Conference on Electrical, Instrumentation and Communication Engineering (ICEICE)》;20171214;1-4页 * |
| 一种使用于WLAN的新型小型化双极化天线;易钊 等;《微波学报》;20130815;62-73页 * |
| 正交极化分级天线设计与实现研究;聂玉明;《中国博士学位论文全文数据库》;20180115;1-151页 * |
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