CN112531335A - Square three-frequency antenna device and communication equipment - Google Patents
Square three-frequency antenna device and communication equipment Download PDFInfo
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- CN112531335A CN112531335A CN202011281931.5A CN202011281931A CN112531335A CN 112531335 A CN112531335 A CN 112531335A CN 202011281931 A CN202011281931 A CN 202011281931A CN 112531335 A CN112531335 A CN 112531335A
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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
- 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
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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
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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Abstract
The invention relates to a square three-frequency antenna device and a communication device, wherein the square three-frequency antenna device comprises: a dielectric layer, a radiating portion, a ground portion and an excitation portion; the radiation part is arranged on the upper surface of the dielectric layer, and the grounding part is arranged on the lower surface of the dielectric layer; the excitation part is used for connecting the radiation part with the grounding part to form a current loop; the radiating part comprises a first rectangular resonance body and a second rectangular resonance body which are arranged perpendicularly to each other; the grounding part comprises a first rectangular metal patch and a second rectangular metal patch which are perpendicular to each other. The square three-frequency antenna device is a built-in on-board antenna with three frequency bands, the antenna device utilizes a square and annular structure and a vertical rectangular resonator to realize the coverage of a plurality of frequency bands, and has the advantages of high gain, small occupied size, higher bandwidth, easy manufacture, backward radiation and integral improvement of the energy efficiency of the antenna device.
Description
Technical Field
The invention relates to the technical field of communication components, in particular to a square three-frequency antenna device and communication equipment.
Background
With the rapid development of wireless communication technology and the increasing popularity of radio equipment applications, antennas, as devices for receiving and transmitting radio waves, are a key component in wireless communication systems. Electromagnetic signals are transmitted and received through the antenna, and due to the fact that the external antenna has the defects of being large in size and prone to damage, more and more electronic devices adopt the built-in antenna. With the development of wireless communication devices, the traditional built-in single-frequency antenna device cannot meet the requirements of people on wireless communication, and in order to meet the communication capability of multiple frequency bands, a system is generally expected to integrate multiple antennas together or adopt a single broadband antenna, so that more communication frequency bands can be covered, the occupied space is reduced, the purpose of reducing the cost is achieved, and meanwhile, the antenna is required to have high gain and high bandwidth performance.
However, the bandwidth of the multi-frequency antenna in the prior art often cannot meet the requirement, and the multi-frequency antenna is too large in size and mostly has a three-dimensional structure, so that the use environment has certain limitations. Therefore, there is a need to design a multi-band antenna that occupies a small space, is built in a board, and has both a high bandwidth and good omni-directionality.
Disclosure of Invention
In view of the above, the present invention provides a square triple-band antenna device and a communication apparatus.
In order to achieve the purpose, the invention adopts the following technical scheme: a square tri-band antenna device comprising:
a dielectric layer, a radiating portion, a ground portion and an excitation portion;
the radiation part is arranged on the upper surface of the dielectric layer, and the grounding part is arranged on the lower surface of the dielectric layer; the excitation part is used for connecting the radiation part with the grounding part to form a current loop;
the radiating part comprises a first rectangular resonance body and a second rectangular resonance body which are arranged perpendicularly to each other; the grounding part comprises a first rectangular metal patch and a second rectangular metal patch which are perpendicular to each other.
Optionally, the radiation part further comprises: a third rectangular resonator body;
the third rectangular resonator body forms an array along the anticlockwise direction and is distributed on the upper surface of the dielectric layer, and the third rectangular resonator body is connected with the end portions of the first rectangular resonator body and the second rectangular resonator body respectively.
Optionally, the radiation part further comprises: disturbing the branch knot;
the disturbance branches form an array along the anticlockwise direction and are distributed on the upper surface of the dielectric layer and are intersected with the first rectangular resonator body and the second rectangular resonator body respectively.
Optionally, the ground part further includes: a third rectangular metal patch;
the third rectangular metal patch can be obtained by clockwise rotating the third rectangular resonator body by 180 degrees around the Y axis; the third rectangular metal patch and the third rectangular resonator body have the same size.
Optionally, the first rectangular metal patch and the second rectangular metal patch can be copied by moving down the first rectangular resonator body and the second rectangular resonator body by 2.5 mm.
Optionally, the ground part further includes: an annular metal patch;
the first rectangular resonator body and the second rectangular resonator body are intersected at the circle center of the annular metal patch; and the parts of the first rectangular resonator body and the second rectangular resonator body, which are overlapped with the annular metal patch, are cut off.
Optionally, the excitation portion comprises a rectangular patch;
the rectangular patch is positioned in the center of the antenna device, penetrates through the dielectric layer and connects the radiating part and the grounding part.
Optionally, the rectangular patch has a length of 2.5mm and a width of 2 mm.
Optionally, the dielectric layer is an F4B-2 dielectric substrate with a length of 60mm, a width of 60mm and a thickness of 2.5mm, the loss tangent value is 0.0009, and the relative dielectric constant is 2.65; and/or the presence of a gas in the gas,
the first rectangular resonator body, the second rectangular resonator body, the first rectangular metal patch and the second rectangular metal patch are all 40.4mm in length and 2mm in width, are made of metal copper, have relative dielectric constants of 1 and have loss tangent values of 0; and/or the presence of a gas in the gas,
the square tri-band antenna device has the dimensions of 60mm in length, 60mm in width and 2.5mm in thickness.
The present invention also provides a communication device comprising: a square triple-band antenna arrangement as claimed in any preceding claim.
By adopting the technical scheme, the square three-frequency antenna device comprises: a dielectric layer, a radiating portion, a ground portion and an excitation portion; the radiation part is arranged on the upper surface of the dielectric layer, and the grounding part is arranged on the lower surface of the dielectric layer; the excitation part is used for connecting the radiation part with the grounding part to form a current loop; the radiating part comprises a first rectangular resonance body and a second rectangular resonance body which are arranged perpendicularly to each other; the grounding part comprises a first rectangular metal patch and a second rectangular metal patch which are perpendicular to each other. The square three-frequency antenna device is a built-in on-board antenna with three frequency bands, the antenna device utilizes a square and annular structure and a vertical rectangular resonator to realize the coverage of a plurality of frequency bands, and has the advantages of high gain, small occupied size, higher bandwidth, easy manufacture, backward radiation and integral improvement of the energy efficiency of the antenna device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an overall structure provided by an embodiment of a square triple-band antenna apparatus according to the present invention;
fig. 2 is a top view of a square triple-band antenna arrangement according to the present invention;
fig. 3 is a front view of a square triple-band antenna arrangement of the present invention;
fig. 4 is a rear view of a square triple-band antenna arrangement of the present invention;
fig. 5 is a diagram of simulation results of S11 parameters of a square tri-band antenna device according to the present invention;
fig. 6 is a standing wave ratio diagram of a square triple-band antenna device according to the present invention.
In the figure: 1. a dielectric layer; 2. a first rectangular resonator body; 3. a second rectangular resonator body; 4. a third rectangular resonator body; 5. disturbing the branch knot; 6. a first rectangular metal patch; 7. a second rectangular metal patch; 8. a third rectangular metal patch; 9. an annular metal patch; 10. a rectangular patch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1 to 4, the square triple-band antenna apparatus of the present embodiment includes:
a dielectric layer 1, a radiation part, a grounding part and an excitation part;
the radiation part is arranged on the upper surface of the dielectric layer 1, and the grounding part is arranged on the lower surface of the dielectric layer 1; the excitation part is used for connecting the radiation part with the grounding part to form a current loop;
the radiation part comprises a first rectangular resonator body 2 and a second rectangular resonator body 3 which are arranged perpendicular to each other; the ground portion comprises a first rectangular metal patch 6 and a second rectangular metal patch 7 arranged perpendicular to each other.
Further, the radiation section further includes: a third rectangular resonator body 4;
the third rectangular resonators 4 are formed in an array along the counterclockwise direction and distributed on the upper surface of the dielectric layer 1, and are connected with the end portions of the first rectangular resonator 2 and the second rectangular resonator 3 respectively.
Further, the radiation section further includes: disturbance branch 5;
the disturbance branches 5 are distributed on the upper surface of the dielectric layer 1 in an array manner along the counterclockwise direction and are intersected with the first rectangular resonator 2 and the second rectangular resonator 3 respectively.
Further, the ground portion further includes: a third rectangular metal patch 8;
the third rectangular metal patch 8 can be obtained by clockwise rotating the third rectangular resonator 4 by 180 degrees around the Y axis; the third rectangular metal patch 8 and the third rectangular resonator body 4 are the same size.
Further, the first rectangular metal patch 6 and the second rectangular metal patch 7 can be copied by moving down the first rectangular resonator body 2 and the second rectangular resonator body 3 by 2.5 mm.
The sizes of the first rectangular resonator body 2, the second rectangular resonator body 3, the first rectangular metal patch 6 and the second rectangular metal patch 7 are 40.4mm in length and 2mm in width, the materials are all metal copper, the relative dielectric constant is 1, and the loss tangent value is 0.
Further, the ground portion further includes: an annular metal patch 9;
the first rectangular resonator body 2 and the second rectangular resonator body 3 are intersected at the center of the annular metal patch 9; the portions of the first rectangular resonator body 2 and the second rectangular resonator body 3 overlapping with the annular metal patch 9 are cut out.
Further, the excitation portion includes a rectangular patch 10;
the rectangular patch 10 is located at the center of the antenna device, and the rectangular patch 10 penetrates through the dielectric layer 1 to connect the radiating portion and the ground portion.
Further, the rectangular patch 10 has a length of 2.5mm and a width of 2 mm.
Further, the dielectric layer 1 is an F4B-2 dielectric substrate with the length of 60mm, the width of 60mm and the thickness of 2.5mm, the loss tangent value is 0.0009, and the relative dielectric constant is 2.65.
The square tri-band antenna device has the dimensions of 60mm in length, 60mm in width and 2.5mm in thickness.
In practical use of the square triple-band antenna device in this embodiment, the third rectangular resonators 4 are formed in an array along the counterclockwise direction and distributed on the upper surface of the dielectric layer 1, and the length of the third rectangular resonators is 17mm, and the width of the third rectangular resonators is 3.3 mm. The annular metal patch 9 is composed of a circular ring with the radius of 8.5mm and the width of 2mm, and in order to avoid overlapping, the annular part of the annular metal patch 9 overlapped with the first rectangular metal patch 6 and the second rectangular metal patch 7 is cut off. The disturbance branch knot 5 is formed by cutting a circular ring with the radius of 11mm and the width of 2 mm. The rectangular patch 10 of the excitation portion has a length of 2.5mm and a width of 2 mm. The rectangular patch 10 is located at the center of the antenna device, passes through the dielectric layer 1, and connects the upper surface radiator with the lower surface reference ground portion to form a current loop. The rectangular patch 10 is configured as an excitation port from which current is conducted, which is a boundary condition for allowing energy to flow into and out of the structure (the rectangular patch 10 is used to connect the antenna radiation portion and the ground portion, and the boundary condition of this material is an ideal boundary condition to avoid electric field coupling of the transmission line to the antenna radiation portion). Except for an excitation part and a dielectric layer 1, all the components of the antenna are made of metal copper, the relative dielectric constant is 1, and the loss tangent value is 0. The excitation portion may be a metal conductive material other than copper metal.
As shown in fig. 5, which is a graph of the simulation result of the S11 parameter of the antenna, the resonant frequency of the point m1 is 2.7GHz, and the return loss of the antenna is about-33.712 dB at this time; the resonant frequency at point m2 is 3.18GHz, the return loss of the antenna is-18.7443 dB at this time, the resonant frequency at point m3 is 4.66GHz, and the return loss of the antenna is-13.1939 dB at this time. The return losses at the resonant frequencies of these three points all meet the requirement of less than-10 dB.
As shown in fig. 6, which is a standing wave ratio diagram corresponding to each frequency point, the ideal value of the voltage standing wave ratio is 1, and at this time, no energy is consumed, and the high-frequency oscillation current is completely radiated. Infinite indicates total reflection. The value ranges between 1 and infinity, generally requiring less than 1.8. As can be seen from fig. 6, the standing-wave ratios of the three frequency points of the antenna device are all very close to 1, which means that the antenna has high radiation efficiency and good performance.
It should be noted that the antenna device can achieve different effects by changing relevant parameters. For example: the radius and the width of the annular metal patch 9 and the size of the rectangular resonator are changed, so that the resonant frequency of the antenna is changed; the radius, length, angle and width of the perturbation branch 5 can also change the resonant frequency and gain of the antenna; the size of the rectangular patch 10 of the excitation portion is changed, and the like.
According to the square three-frequency antenna device, the resonant frequency, the return loss and the gain of the antenna are changed by the rectangular resonator, the annular metal patch 9, the disturbance branch 5 and the copper-clad part on the back of the antenna device; by adding the inner coupling ring (namely the annular metal patch 9) and the disturbance branches 5, the multi-frequency characteristic is realized, and the coverage area is enlarged; the two rectangular resonance bodies of the antenna device are perpendicular to each other, so that on one hand, electromagnetic waves in different polarization directions are received, and on the other hand, coupling between the antennas can be reduced; the radiation part of the antenna device is arranged into a symmetrical and broken line structure, so that the radiation direction has complementary characteristics, the directivity of the antenna is optimized, and the overall performance is improved; through the mode of microstrip line center feed, introduce the excitation signal from the bottom, can effectively reduce insertion loss, have better anti-interference effect simultaneously. In addition, the whole size of the antenna device is only 60mm by 2.5mm, the occupied space is small, and the antenna device is suitable for being used in small-sized portable equipment.
The square three-frequency antenna device is a built-in on-board antenna with three frequency bands, the antenna device achieves coverage of multiple frequency bands by utilizing square and annular structures and vertical rectangular resonators, is high in gain, small in occupied size, high in bandwidth, easy to manufacture and capable of radiating backwards, and improves the energy efficiency of the antenna device on the whole.
The present invention also provides a communication device comprising: a square triple-band antenna arrangement as described hereinbefore.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A square tri-band antenna device, comprising:
a dielectric layer, a radiating portion, a ground portion and an excitation portion;
the radiation part is arranged on the upper surface of the dielectric layer, and the grounding part is arranged on the lower surface of the dielectric layer; the excitation part is used for connecting the radiation part with the grounding part to form a current loop;
the radiating part comprises a first rectangular resonance body and a second rectangular resonance body which are arranged perpendicularly to each other; the grounding part comprises a first rectangular metal patch and a second rectangular metal patch which are perpendicular to each other.
2. The square tri-band antenna device of claim 1, wherein the radiating portion further comprises: a third rectangular resonator body;
the third rectangular resonator body forms an array along the anticlockwise direction and is distributed on the upper surface of the dielectric layer, and the third rectangular resonator body is connected with the end portions of the first rectangular resonator body and the second rectangular resonator body respectively.
3. The square tri-band antenna device of claim 2, wherein the radiating portion further comprises: disturbing the branch knot;
the disturbance branches form an array along the anticlockwise direction and are distributed on the upper surface of the dielectric layer and are intersected with the first rectangular resonator body and the second rectangular resonator body respectively.
4. The square tri-band antenna device of claim 2, wherein the ground portion further comprises: a third rectangular metal patch;
the third rectangular metal patch can be obtained by clockwise rotating the third rectangular resonator body by 180 degrees around the Y axis; the third rectangular metal patch and the third rectangular resonator body have the same size.
5. A square tri-band antenna device according to claim 4, wherein the first and second rectangular metal patches are replicated from the first and second rectangular resonators being moved down by 2.5 mm.
6. The square tri-band antenna device of claim 1, wherein the ground portion further comprises: an annular metal patch;
the first rectangular resonator body and the second rectangular resonator body are intersected at the circle center of the annular metal patch; and the parts of the first rectangular resonator body and the second rectangular resonator body, which are overlapped with the annular metal patch, are cut off.
7. A square tri-band antenna device according to claim 6, wherein the excitation portion comprises a rectangular patch;
the rectangular patch is positioned in the center of the antenna device, penetrates through the dielectric layer and connects the radiating part and the grounding part.
8. A square tri-band antenna device according to claim 7, where the rectangular patch has a length of 2.5mm and a width of 2 mm.
9. The square tri-band antenna device of any of claims 1 to 8, wherein the dielectric layer is an F4B-2 dielectric substrate with a length of 60mm, a width of 60mm and a thickness of 2.5mm, the loss tangent is 0.0009 and the relative dielectric constant is 2.65;
the first rectangular resonator body, the second rectangular resonator body, the first rectangular metal patch and the second rectangular metal patch are all 40.4mm in length and 2mm in width, are made of metal copper, have relative dielectric constants of 1 and have loss tangent values of 0; and/or the presence of a gas in the gas,
the square tri-band antenna device has the dimensions of 60mm in length, 60mm in width and 2.5mm in thickness.
10. A communication device, comprising: a square tri-band antenna device as claimed in any of claims 1 to 9.
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| CN202011281931.5A CN112531335B (en) | 2020-11-16 | 2020-11-16 | Square three-frequency antenna device and communication equipment |
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| CN202011281931.5A CN112531335B (en) | 2020-11-16 | 2020-11-16 | Square three-frequency antenna device and communication equipment |
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Cited By (1)
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| CN116913235A (en) * | 2023-09-14 | 2023-10-20 | 中石化经纬有限公司 | Low-frequency broadband dipole sound source |
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| Publication number | Publication date |
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| CN112531335B (en) | 2021-09-28 |
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