CN112448153A - Antenna radiation device and antenna - Google Patents
Antenna radiation device and antenna Download PDFInfo
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- CN112448153A CN112448153A CN201910825975.0A CN201910825975A CN112448153A CN 112448153 A CN112448153 A CN 112448153A CN 201910825975 A CN201910825975 A CN 201910825975A CN 112448153 A CN112448153 A CN 112448153A
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- 238000005452 bending Methods 0.000 claims abstract description 66
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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
Abstract
The invention discloses an antenna radiation device and an antenna, wherein the antenna radiation device comprises: a feed point, at least two radiating elements and at least one inverter; any two radiation units are connected through a corresponding phase inverter to form an antenna radiation main body; a feeding point for feeding the antenna radiation body from the head end of the antenna radiation body to the tail end of the antenna radiation body; the phase inverter comprises a first bending section and a second bending section; the first bending section and the second bending section are of a symmetrical structure on the plane, the first end of the first bending section is connected with one end of one corresponding radiation unit, the second end of the first bending section is connected with the first end of the corresponding second bending section, and the second end of the second bending section is connected with one end of the other corresponding radiation unit. The invention can provide an antenna radiation device which has better phase consistency in an application frequency band, is horizontally omnidirectional, and has wide bandwidth and high gain.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an antenna radiation device and an antenna.
Background
With the development of wireless communication technology and the increasing popularity of mobile radio communication, the broadband of communication systems puts higher demands on the bandwidth of antenna radiation devices. However, the existing antenna radiation device has low gain, narrow bandwidth, and non-uniform signal coverage omni-directional property, and it is difficult to ensure phase consistency especially in the application frequency band, and thus the requirement of wireless communication development cannot be met.
Disclosure of Invention
The embodiment of the invention aims to provide an antenna radiation device which has better phase consistency in an application frequency band, is horizontally omnidirectional, and has wide bandwidth and high gain.
In order to achieve the above object, an embodiment of the present invention provides an antenna radiation device, including: a feed point, at least two radiating elements and at least one inverter;
any two radiation units are connected through a corresponding one of the phase inverters to form an antenna radiation main body; the feeding point is used for feeding the antenna radiation body from the head end of the antenna radiation body to the tail end of the antenna radiation body;
the phase inverter comprises a first bending section and a second bending section; the first bending section and the second bending section are in a symmetrical structure on the plane, the first end of the first bending section is connected with one end of one corresponding radiation unit, the second end of the first bending section is connected with the first end of the corresponding second bending section, and the second end of the second bending section is connected with one end of the other corresponding radiation unit.
Preferably, the inverter further includes an extension section connected between the second end of the second bent section and one end of the corresponding other radiation unit.
Preferably, the first bending section is bent to form a first included angle, the second bending section is bent to form a second included angle, and the first bending section and the second bending section form a third included angle; wherein, the first included angle, the second included angle and the third included angle are the same, and the angle is 60-90 degrees.
Preferably, the antenna radiation device further comprises a dielectric plate; the feed point, the radiation unit and the phase inverter are all arranged on the same surface of the dielectric plate.
Preferably, the antenna radiation device further comprises a ground branch, and the ground branch is connected with the antenna radiation main body through the feed point.
Preferably, the ground branch is a dipole ground branch and is H-shaped.
Preferably, the number of the radiation units is at least three, and the radiation units comprise three radiation units, namely a first radiation unit, a second radiation unit and a third radiation unit; the number of the inverters is at least two, and the inverters comprise a first inverter and a second inverter;
the head end of the first radiation unit is formed as the head end of the antenna radiation main body, the tail end of the first radiation unit is connected with the head end of the second radiation unit through the first phase inverter, and the tail end of the second radiation unit is connected with the head end of the third radiation unit through the second phase inverter;
the first radiation unit comprises three rectangular blocks which are sequentially connected from the head end to the tail end of the first radiation unit and have gradually increased widths;
the second radiation unit comprises a trapezoidal block and two rectangular blocks with gradually increased widths, wherein the trapezoidal block and the two rectangular blocks are sequentially connected from the head end to the tail end of the second radiation unit;
the third radiation unit comprises a trapezoidal block and a rectangular block which are sequentially connected from the head end to the tail end of the third radiation unit.
Preferably, the number of the radiation units is at least four, and a fourth radiation unit is further included; the number of the inverters is at least three, and the inverter further comprises a third inverter; the head end of the fourth radiation unit is connected with the tail end of the third radiation unit through the third inverter, and the structure of the fourth radiation unit is consistent with that of the third radiation unit.
Preferably, the number of the radiation units is five, and a fifth radiation unit is further included, and the number of the inverters is four, and a fourth inverter is further included; the head end of the fifth radiation unit is connected with the tail end of the fourth radiation unit through the fourth inverter, and the structure of the fifth radiation unit is consistent with that of the third radiation unit.
The embodiment of the invention also provides an antenna, which comprises the antenna radiation device.
Compared with the prior art, the antenna radiation device and the antenna provided by the embodiment of the invention have the advantages that the phase inverters which are integrally in a symmetrical structure are connected between the two radiation units, so that currents on the phase inverters can be mutually offset, the currents of the radiation units are in the same direction, the antenna radiation device has better phase consistency in an application frequency band, direction diagram consistency in the frequency band is good, the antenna is horizontal and omnidirectional, and the bandwidth of the antenna radiation device is remarkably improved. Meanwhile, the gain of the antenna radiation device can be effectively improved by increasing the number of the radiation units.
Drawings
Fig. 1 is a schematic diagram of an antenna radiation device according to an embodiment of the present invention.
Fig. 2 is a diagram illustrating a current distribution of an antenna radiation device in an application frequency band according to an embodiment of the present invention.
Fig. 3 is a graph of scattering parameters as a function of frequency for an antenna radiation device including three radiation elements according to an embodiment of the present invention.
Fig. 4 is a horizontal radiation pattern of the antenna radiation device including three radiation units at the frequency points of 6.2GHz, 6.5GHz and 6.8GHz according to an embodiment of the present invention.
Fig. 5 is a vertical radiation pattern of the antenna radiation device including three radiation units at the frequency points of 6.2GHz, 6.5GHz and 6.8GHz according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an antenna radiation device including four radiation elements according to an embodiment of the present invention.
Fig. 7 is a graph of scattering parameters as a function of frequency for an antenna radiation device including four radiation elements according to an embodiment of the present invention.
Fig. 8 is a horizontal radiation pattern of the antenna radiation device including four radiation units at the frequency points of 6.2GHz, 6.5GHz and 6.8GHz according to an embodiment of the present invention.
Fig. 9 is a vertical radiation pattern of the antenna radiation device including four radiation units at the frequency points of 6.2GHz, 6.5GHz and 6.8GHz according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of an antenna radiation device including five radiation elements according to an embodiment of the present invention.
Fig. 11 is a graph of scattering parameters as a function of frequency for an antenna radiation device including five radiation elements according to an embodiment of the present invention.
Fig. 12 is a horizontal radiation pattern of the antenna radiation device including five radiation units at the frequency points of 6.2GHz, 6.5GHz and 6.8GHz according to an embodiment of the present invention.
Fig. 13 is a vertical radiation pattern of the antenna radiation device including five radiation units at the frequency points of 6.2GHz, 6.5GHz and 6.8GHz according to an embodiment of the present invention.
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. 1, a schematic diagram of an antenna radiation device according to an embodiment of the present invention is shown, where the antenna radiation device includes: a feeding point 31, at least two radiating elements and at least one inverter;
any two radiation units are connected through a corresponding one of the phase inverters to form an antenna radiation main body; the feeding point 31 is configured to feed the antenna radiation body from a head end of the antenna radiation body to a tail end of the antenna radiation body;
the phase inverter comprises a first bending section and a second bending section; the first bending section and the second bending section are in a symmetrical structure on the plane, the first end of the first bending section is connected with one end of one corresponding radiation unit, the second end of the first bending section is connected with the first end of the corresponding second bending section, and the second end of the second bending section is connected with one end of the other corresponding radiation unit.
Specifically, the antenna radiation device includes: a feeding point 31, at least two radiating elements and at least one inverter. The radiation unit is used for radiating and receiving radio waves. The inverter has a total length of 1/2, and the current of each point on the inverter can be offset by a current opposite to the direction of the current, so the electromagnetic radiation of the inverter is very small.
Any two radiating elements are connected through a corresponding phase inverter to form an antenna radiating body. Because the currents on the phase inverters are mutually offset, the currents on each radiating unit are in the same phase, so that the vectors of the fields of the antenna radiating main body at all points on the space are superposed, the effect of field enhancement is achieved, and the antenna gain is improved. And the feeding point 31 is used for feeding the antenna radiation body from the head end of the antenna radiation body to the tail end of the antenna radiation body, and providing electric energy and transmitting radio waves for the normal work of the antenna radiation body.
The inverter comprises a first bending section and a second bending section, and the whole inverter is M-shaped. The first bending section and the second bending section are of a symmetrical structure on the plane, the first end of the first bending section is connected with one end of one corresponding radiation unit, the second end of the first bending section is connected with the first end of the corresponding second bending section, and the second end of the second bending section is connected with one end of the other corresponding radiation unit. In order to enable the antenna radiation main body to have better phase consistency in an application frequency band, currents on the phase inverters can be mutually offset by adjusting wiring of the phase inverters, including bending included angles and lengths of the phase inverters, so that the currents of the radiation units are in the same direction, and the bandwidth of the antenna radiation main body is expanded. Phase consistency means that the currents of the radiation elements at the tail end of each inverter, i.e. the head end of the radiation element, are kept consistent, and the directions of the currents are kept consistent in the radiation elements.
Referring to fig. 2, a current distribution of an antenna radiation device in an application frequency band according to an embodiment of the present invention is shown, where an arrow direction is a surface current direction on the antenna radiation device. The currents on the radiating elements are in the same direction, so that the fields in space are enhanced in a superposition mode. Within a certain number of ranges, the more radiating elements, the higher the gain of the antenna radiating arrangement. Generally, when the number of the radiating elements reaches seven or more, the gain of the antenna radiating device is not increased significantly, because the current of the radiating element far away from the feeding point is gradually decreased with the increase of the radiating elements, and the gain increasing effect of the antenna is gradually reduced.
The embodiment of the invention provides an antenna radiation device, and the phase inverter which is integrally in a symmetrical structure is connected between two radiation units, so that currents on the phase inverter can be mutually offset, the currents of the radiation units are in the same direction, the antenna radiation device has better phase consistency in an application frequency band, and the bandwidth of an antenna radiation main body is expanded.
As an improvement of the above solution, the inverter further includes an extension section, and the extension section is connected between the second end of the second bending section and one end of the corresponding another radiation unit.
Specifically, in order to make the inverter well connected between the radiation elements at both ends of the inverter, the inverter further includes an extension section connected between the second end of the second bending section and one end of the corresponding other radiation element. The extension section is gradually expanded, one end is narrow, the other end is wide, the narrow end is connected with the second end of the second bending section, the wide end is connected with one end of the corresponding other radiation unit, and the joint is located in the center of one end of the other radiation unit.
As an improvement of the above scheme, the first bending section is bent to form a first included angle, the second bending section is bent to form a second included angle, and the first bending section and the second bending section form a third included angle; wherein, the included angle of first contained angle, second contained angle and third contained angle is the same, and the angle is 60 ~ 90.
Specifically, the first bending section is bent to form a first included angle, the second bending section is bent to form a second included angle, and the first bending section and the second bending section form a third included angle; wherein, the contained angle of first contained angle, second contained angle and third contained angle is the same, and the angle is 60 ~ 90, that is to say, first bending segment is the type of falling V, and the second bending segment also is the type of falling V, and the junction of first bending segment and second bending segment is the type of V, and the contained angle of each type of V is 60 ~ 90, preferred 70. In actual adjustment, the included angles are not fixed values, and each antenna radiation device may have a little deviation; the setting of a specific radiating element may also affect the selection of the included angle, but all the included angles are set to achieve the effect of mutual cancellation of the currents of the inverters.
As an improvement of the above scheme, the antenna radiation device further comprises a dielectric plate 4; the feeding point 31, the radiating element and the inverter are all disposed on the same plane of the dielectric plate 4.
Specifically, the antenna radiation device further includes a dielectric plate 4; the feeding point 31, the radiating element and the inverter are all provided on the same face of the dielectric plate 4, thereby forming an antenna radiating device of a printed antenna, and thus being better assembled in a wireless communication product. The base material of the dielectric plate 4 is epoxy glass cloth paper base plate (CEM-1 plate), and the price is low, so that the cost of the antenna radiation device can be reduced.
As an improvement of the above scheme, the antenna radiation device further includes a ground branch 32, and the ground branch 32 is connected to the antenna radiation main body through the feeding point 31.
Specifically, the antenna radiation device further includes a ground branch 32, and the ground branch 32 is connected to the antenna radiation body through the feeding point 31. As shown in fig. 1, the feeding point 31 is located between the head end of the antenna radiation main body and the ground branch 32, and is used for connecting the feeder line and the antenna radiation main body. The ground branch section 32 is used for adjusting the impedance in the antenna radiation device so as to expand the antenna bandwidth and improve the antenna gain.
As an improvement of the scheme, the ground branch sections 32 are dipole ground branch sections and are H-shaped.
Specifically, the ground branch 32 is a dipole ground branch, is H-shaped, is a vertical symmetric structure, and is placed horizontally, that is, the direction is consistent with the direction from the head end to the tail end of the antenna radiation main body, so that the electromagnetic loops on the two sides of the antenna radiation main body are uniform, the upper half part of the H-shaped form and the head end of the antenna radiation main body jointly form a matching bandwidth optimization structure, which can improve the bandwidth of the antenna radiation main body, and the lower half part is opposite to the current direction of the radio frequency cable outer conductor, so as to suppress the radiation of the radio frequency cable outer conductor, weaken the influence of the current on the feeder line on the radiation of the antenna radiation main body, and.
As a modification of the above scheme, the number of the radiation units is at least three, and the radiation units include three radiation units, namely a first radiation unit 11, a second radiation unit 12 and a third radiation unit 13; the number of the inverters is at least two, and the inverters comprise two inverters, namely a first inverter 21 and a second inverter 22;
the head end of the first radiation element 11 is formed as the head end of the antenna radiation main body, the tail end of the first radiation element 11 is connected with the head end of the second radiation element 12 through the first inverter 21, and the tail end of the second radiation element 12 is connected with the head end of the third radiation element 13 through the second inverter 22;
the first radiation unit 11 comprises three rectangular blocks which are sequentially connected from the head end to the tail end and have gradually increased widths;
the second radiation unit 12 comprises a trapezoidal block and two rectangular blocks with gradually increased widths, which are sequentially connected from the head end to the tail end of the second radiation unit;
the third radiating element 13 includes a trapezoidal block and a rectangular block connected in sequence from the head end to the tail end thereof.
Specifically, the number of the radiation units is at least three, and the radiation units include three radiation units, namely a first radiation unit 11, a second radiation unit 12 and a third radiation unit 13; the number of inverters is at least two, and includes two inverters, i.e., a first inverter 21 and a second inverter 22. This is to better describe the preferred embodiment for embodiment 1, which has three cases: the antenna radiation main body includes three radiation elements, the antenna radiation main body includes four radiation elements, and the antenna radiation main body includes five radiation elements.
The head end of the first radiation unit 11 is formed as the head end of the antenna radiation body, the tail end of the first radiation unit 11 is connected with the head end of the second radiation unit 12 through the first phase inverter 21, the tail end of the second radiation unit 12 is connected with the head end of the third radiation unit 13 through the second phase inverter 22, that is, the head and tail directions of the first radiation unit 11, the second radiation unit 12 and the third radiation unit 13 arranged on the same plane are all the same, and meanwhile, the two radiation units are connected through one corresponding phase inverter.
The first radiating element 11 comprises three rectangular blocks which are sequentially connected from the head end to the tail end of the first radiating element and have gradually increased widths, and the structure can be better butted with the H-shaped ground branch 32, so that a matching bandwidth optimization structure is formed by the first radiating element and the ground branch 32, the bandwidth of an antenna radiating body can be improved, meanwhile, a feed point 31 is conveniently formed, and the feed impedance is reduced.
The second radiation unit 12 comprises a trapezoidal block and two rectangular blocks, the width of each trapezoidal block is gradually increased compared with that of each rectangular block, the upper bottom of each trapezoidal block is as wide as one end of the first bending section of the first phase inverter 21, so that the first phase inverter 21 can be better connected, the lower bottom of each trapezoidal block is as wide as the rectangular block connected with the lower bottom of each trapezoidal block, and the phase of current in the second radiation unit 12 can be better kept consistent.
The third radiating element 13 includes a trapezoidal block and a rectangular block connected in sequence from the head end to the tail end thereof. The upper bottom of the trapezoidal block is as wide as one end of the first bending section of the second inverter 22, so that the second inverter 22 can be better connected, and the lower bottom of the trapezoidal block is as wide as the connected rectangular block, so that the phase of the current in the third radiating unit 13 can be better kept consistent.
Referring to fig. 3, a graph of scattering parameters of an antenna radiation device including three radiation elements according to an embodiment of the present invention is shown. As can be seen from FIG. 3, the S parameter of the antenna radiation device is less than-10 dB in the frequency band of 4.0-7.8 GHz, and the matching is good. The impedance bandwidth of the antenna reaches more than 50%.
Referring to fig. 4 and 5, a horizontal radiation pattern and a vertical radiation pattern of the antenna radiation device including three radiation units at frequency points of 6.2GHz, 6.5GHz and 6.8GHz according to an embodiment of the present invention are shown in fig. 4 and 5, respectively, where the maximum gain of the antenna radiation device in a frequency band of 6 to 7GHz is 5.65dBi, and the maximum gain in a horizontal plane is 5.60 dBi. The antenna radiation device is horizontally omnidirectional, meets the application requirements of common external antennas, has good consistency of all frequency points in a working frequency band, and can effectively reduce the influence of frequency point change on the whole machine performance.
As a modification of the above, the number of the radiation units is at least four, and the radiation unit further includes a fourth radiation unit 14; the number of the inverters is at least three, and the inverter further comprises a third inverter 23; the head end of the fourth radiation unit 14 is connected to the tail end of the third radiation unit 13 through the third inverter 23, and the structure of the fourth radiation unit 14 is the same as that of the third radiation unit 13.
Specifically, the number of radiation units is at least four, and a fourth radiation unit 14 is further included; the number of inverters is at least three, and the third inverter 23 is further included, that is, the fourth radiating unit 14 and the third inverter 23 are added to the previous embodiment. The head end of the fourth radiation unit 14 is connected to the tail end of the third radiation unit 13 through the third inverter 23, and the structure of the fourth radiation unit 14 is the same as that of the third radiation unit 13.
The present embodiment is mainly directed to the case where the antenna radiation body includes four radiation elements. Fig. 6 is a schematic structural diagram of an antenna radiation device with four radiation units according to an embodiment of the present invention.
Referring to fig. 7, a graph of scattering parameters of an antenna radiation device including four radiation elements according to an embodiment of the present invention is shown. As can be seen from FIG. 7, the S parameter of the antenna radiation device is less than-10 dB in the frequency band of 4.0-7.6 GHz, the impedance bandwidth of the antenna is sufficient, and the matching is good.
Referring to fig. 8 and 9, it is respectively a horizontal radiation pattern and a vertical radiation pattern of the antenna radiation device including four radiation units at frequency points of 6.2GHz, 6.5GHz, and 6.8GHz provided by the embodiment of the present invention, and as can be seen from fig. 8 and 9, the maximum gain of the antenna radiation device in a frequency band of 6 to 7GHz is 6.18dBi, and the maximum gain in a horizontal plane is 6.04 dBi. Similarly, the antenna radiation device is omnidirectional horizontally, and the consistency of each frequency point in the working frequency band is good.
As a modification of the above scheme, the number of the radiation units is five, and the antenna further includes a fifth radiation unit 15, the number of the inverters is four, and the antenna further includes a fourth inverter 24; the head end of the fifth radiation element 15 is connected to the tail end of the fourth radiation element 14 through the fourth inverter 24, and the structure of the fifth radiation element 15 is the same as that of the third radiation element 13.
Specifically, the number of the radiation elements is five, and the fifth radiation element 15 is further included, the number of the inverters is four, and the fourth inverter 24 is further included, that is, the present embodiment is to add one fifth radiation element 15 and one fourth inverter 24 on the basis of the previous embodiment. The head end of the fifth radiation element 15 is connected to the tail end of the fourth radiation element 14 through a fourth inverter 24, and the structure of the fifth radiation element 15 is the same as that of the third radiation element 13.
This implementation is mainly directed to the case where the antenna radiation body includes five radiation elements. Fig. 10 is a schematic structural diagram of an antenna radiation device with five radiation units according to an embodiment of the present invention.
Referring to fig. 11, a graph of scattering parameters of an antenna radiation device including five radiation elements according to an embodiment of the present invention is shown. As can be seen from FIG. 11, the S parameter of the antenna radiation device is less than-10 dB in the frequency band of 4.0-7.6 GHz, the impedance bandwidth of the antenna is sufficient, and the matching is good.
Referring to fig. 12 and 13, it is respectively a horizontal radiation pattern and a vertical radiation pattern of the antenna radiation device including five radiation units at frequency points of 6.2GHz, 6.5GHz, and 6.8GHz provided by the embodiment of the present invention, and as can be seen from fig. 12 and 13, the maximum gain of the antenna radiation device in a frequency band of 6 to 7GHz is 6.75dBi, and the maximum gain in a horizontal plane is 6.66 dBi. Similarly, the antenna radiation device is omnidirectional horizontally, and the consistency of each frequency point in the working frequency band is good.
Another embodiment of the present invention further provides an antenna, including the antenna radiation device according to any of the above embodiments. The antenna also comprises a feeder line, a feed network and a radio frequency cable which jointly form an external omnidirectional antenna with the frequency of 6-7 GHz suitable for 802.11ax Wave 2. 802.11ax is known as the high efficiency wireless standard (HEW), a sixth generation WiFi technology. The 11ax Wave1 supports 2.4GHz and 5GHz frequency bands and is downward compatible with 11 a/b/g/n/ac. The 11ax Wave2 enables the 5.925GHz to 7.125GHz frequency band on the basis of 11ax W1 so as to meet the requirement of the wireless device on higher throughput. At present, 802.11ax Wave2 is not commercially available, and a similar external omnidirectional antenna suitable for indoor wireless communication equipment is not available on the market. The antenna has better consistency of a horizontal directional diagram and wider bandwidth within the range of 5.925 GHz-7.125 GHz.
To sum up, the antenna radiation device and the antenna provided by the embodiments of the present invention connect an inverter having an overall M-shaped symmetric structure between two radiation units, so that currents on the inverters can be mutually offset, and currents of the radiation units are in the same direction, so that the antenna radiation device has better phase consistency in an application frequency band, and meanwhile, the direction diagram consistency in the frequency band is good, and the antenna is horizontally omnidirectional, so that the bandwidth of the antenna radiation device is significantly increased. Meanwhile, the gain of the antenna radiation device can be effectively improved by increasing the number of the radiation units. The antenna radiation device adopts a CEM-1 plate with low price, greatly reduces the cost of the antenna, is suitable for common wireless communication products through the bottom feed of the single-sided dielectric plate, and has the characteristic of easy assembly.
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 (10)
1. An antenna radiation device, comprising: a feed point, at least two radiating elements and at least one inverter;
any two radiation units are connected through a corresponding one of the phase inverters to form an antenna radiation main body; the feeding point is used for feeding the antenna radiation body from the head end of the antenna radiation body to the tail end of the antenna radiation body;
the phase inverter comprises a first bending section and a second bending section; the first bending section and the second bending section are in a symmetrical structure on the plane, the first end of the first bending section is connected with one end of one corresponding radiation unit, the second end of the first bending section is connected with the first end of the corresponding second bending section, and the second end of the second bending section is connected with one end of the other corresponding radiation unit.
2. The antenna radiation device of claim 1, wherein said inverter further comprises an extension section connected between a second end of said second bent section and an end of another corresponding one of said radiation elements.
3. The antenna radiation device according to claim 1, wherein the first bending section is bent to form a first included angle, the second bending section is bent to form a second included angle, and both the first bending section and the second bending section form a third included angle; wherein, the included angle of first contained angle, second contained angle and third contained angle is the same, and the angle is 60 ~ 90.
4. The antenna radiation device of claim 1, further comprising a dielectric plate; the feed point, the radiation unit and the phase inverter are all arranged on the same surface of the dielectric plate.
5. The antenna radiating device of claim 1, further comprising a ground branch, wherein the ground branch is connected to the antenna radiating body through the feed point.
6. The antenna radiation device of claim 5, wherein said ground branches are dipole ground branches and are H-shaped.
7. The antenna radiation device of claim 1, wherein the number of said radiation elements is at least three, and comprises three of a first radiation element, a second radiation element and a third radiation element; the number of the inverters is at least two, and the inverters comprise a first inverter and a second inverter;
the head end of the first radiation unit is formed as the head end of the antenna radiation main body, the tail end of the first radiation unit is connected with the head end of the second radiation unit through the first phase inverter, and the tail end of the second radiation unit is connected with the head end of the third radiation unit through the second phase inverter;
the first radiation unit comprises three rectangular blocks which are sequentially connected from the head end to the tail end of the first radiation unit and have gradually increased widths;
the second radiation unit comprises a trapezoidal block and two rectangular blocks with gradually increased widths, wherein the trapezoidal block and the two rectangular blocks are sequentially connected from the head end to the tail end of the second radiation unit;
the third radiation unit comprises a trapezoidal block and a rectangular block which are sequentially connected from the head end to the tail end of the third radiation unit.
8. The antenna radiation device of claim 7, wherein said radiation elements are at least four in number, and further comprising a fourth radiation element; the number of the inverters is at least three, and the inverter further comprises a third inverter; the head end of the fourth radiation unit is connected with the tail end of the third radiation unit through the third inverter, and the structure of the fourth radiation unit is consistent with that of the third radiation unit.
9. The antenna radiation device of claim 8, wherein said radiation elements are five in number, and further comprising a fifth radiation element, said inverters are four in number, and further comprising a fourth inverter; the head end of the fifth radiation unit is connected with the tail end of the fourth radiation unit through the fourth inverter, and the structure of the fifth radiation unit is consistent with that of the third radiation unit.
10. An antenna comprising an antenna radiation device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| US20100134375A1 (en) * | 2008-12-03 | 2010-06-03 | Advanced Connection Technology Inc. | Planar antenna |
| CN104638357A (en) * | 2015-01-30 | 2015-05-20 | 华南理工大学 | Multiband broadband annular monopole plane mobile phone antenna |
| CN106356619A (en) * | 2016-10-14 | 2017-01-25 | 西安电子科技大学 | Wide-band and high-gain WiFi (Wireless Fidelity) omnidirectional antenna |
| CN108767448A (en) * | 2018-06-08 | 2018-11-06 | 河南师范大学 | A kind of small size double frequency list feedback omnidirectional antenna |
| CN109950690A (en) * | 2017-12-21 | 2019-06-28 | 华为技术有限公司 | A kind of antenna and terminal |
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2019
- 2019-08-30 CN CN201910825975.0A patent/CN112448153B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100134375A1 (en) * | 2008-12-03 | 2010-06-03 | Advanced Connection Technology Inc. | Planar antenna |
| CN104638357A (en) * | 2015-01-30 | 2015-05-20 | 华南理工大学 | Multiband broadband annular monopole plane mobile phone antenna |
| CN106356619A (en) * | 2016-10-14 | 2017-01-25 | 西安电子科技大学 | Wide-band and high-gain WiFi (Wireless Fidelity) omnidirectional antenna |
| CN109950690A (en) * | 2017-12-21 | 2019-06-28 | 华为技术有限公司 | A kind of antenna and terminal |
| CN108767448A (en) * | 2018-06-08 | 2018-11-06 | 河南师范大学 | A kind of small size double frequency list feedback omnidirectional antenna |
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| CN112448153B (en) | 2024-04-02 |
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