CN211629292U - Communication equipment and antenna device of super wide screen thereof - Google Patents
Communication equipment and antenna device of super wide screen thereof Download PDFInfo
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- CN211629292U CN211629292U CN202020727050.0U CN202020727050U CN211629292U CN 211629292 U CN211629292 U CN 211629292U CN 202020727050 U CN202020727050 U CN 202020727050U CN 211629292 U CN211629292 U CN 211629292U
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Abstract
The utility model discloses an antenna device of super wide screen, include: the N groups of symmetric dipoles are used for exciting and feeding, each group of symmetric dipoles comprises two radiation oscillator arms and a balun connected with the corresponding radiation oscillator arm, and a feeding sheet is arranged between the two radiation oscillator arms of each group of symmetric dipoles; wherein N is a positive integer; the 2N baluns are all fixed on the reflecting plate; the supporting piece is used for fixing the metal parasitic piece above the N pairs of symmetric dipoles; a metal parasitic piece; the radio frequency connection module is connected with the N feed plates; a radome for mating with a reflector panel. By applying the scheme of the application, the relative bandwidth of the antenna is improved on the basis of ensuring miniaturization and high isolation.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a communication equipment and antenna device of super wide screen thereof.
Background
Currently, in civil antennas, dual-polarized antennas covering the frequency band of 470MHz-806MHz are basically blank. First, in the mobile communication field, the frequency band is not used by the IMT-2000, IMT-Advanced and IMT-2020 systems of ITU programming. Secondly, in the 450MHz-470MHz band planned in the IMT system, the relative bandwidth is 4.3%, and the relative bandwidth of 52.7% of the band of 470MHz-806MHz cannot be achieved.
In addition, the frequency band of 470MHz-806MHz approaches the lower limit of the microwave band (300MHz-300 GHz). Generally, as the frequency is reduced, the size of the antenna is increased, in order to realize a higher relative bandwidth, the antenna structure is very complex, which is not beneficial to the miniaturization design of the antenna, and in the scheme of the low-frequency antenna, the isolation is sacrificed to improve the relative bandwidth, so that the antenna is generally only suitable for being used as a receiving antenna.
In summary, how to make the relative bandwidth of the antenna larger on the basis of ensuring miniaturization and high isolation is a technical problem that needs to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a communication equipment and antenna device of super wide-screen thereof to in the assurance miniaturization, on the basis of high isolation for the relative bandwidth of antenna is great.
In order to solve the technical problem, the utility model provides a following technical scheme:
an ultra-wide screen antenna assembly, comprising:
the dipole antenna comprises N groups of symmetric dipoles for excitation feeding, wherein each group of symmetric dipoles comprises two radiation oscillator arms and a balun connected with the corresponding radiation oscillator arm, and a feeding piece is arranged between the two radiation oscillator arms of each group of symmetric dipoles; wherein N is a positive integer;
the 2N baluns are all fixed on the reflecting plate;
a support member for fixing a metal parasitic piece above the N groups of symmetric dipoles;
the metal parasitic piece;
the radio frequency connecting module is connected with the N feed plates;
a radome for mating with the reflector plate.
Preferably, any one of the radiation oscillator arms is of a planar structure, and the plane where any one of the radiation oscillator arms is located is parallel to the reflecting plate.
Preferably, any one of the radiating oscillator arms is a radiating oscillator arm with a middle width larger than that of the end part.
Preferably, two baluns included in each group of the symmetric dipoles are parallel to each other, and both the two baluns are in a planar structure.
Preferably, any one of the radiating oscillator arms is a planar structure.
Preferably, N is 2, and the two sets of symmetric dipoles are perpendicular to each other.
Preferably, the metal parasitic pieces are aluminum rectangular metal parasitic pieces.
Preferably, the antenna device of the ultra-wide screen is an antenna device of the ultra-wide screen covering 470MHz to 806MHz frequency bands.
A communication device comprising an ultra-wide screen antenna arrangement as claimed in any one of the preceding claims.
Preferably, the communication device is a 5G communication device.
Use the embodiment of the utility model provides a technical scheme, the radiation oscillator can be decomposed into two basic radiating element models, and one of them model is just the symmetric dipole antenna that comprises N group symmetric dipole, and another model is then microstrip antenna. Specifically, since the metal parasitic patch is fixed above the N pairs of symmetric dipoles, the metal parasitic patch can form a microstrip structure with the reflector plate as a radiation patch, and the N pairs of symmetric dipoles play a role in exciting feeding. Because two basic radiation unit models exist, the antenna device of the ultra-wide screen can form two resonance points in a frequency band needing to be designed, and therefore the relative bandwidth of the scheme is improved. In addition, the purpose of improving the relative bandwidth is achieved by arranging the metal parasitic pieces on the basis of the N groups of symmetrical dipoles, so that the scheme is simple in structure, and the isolation is high due to excitation feeding of the symmetrical dipoles. In conclusion, the scheme of the application ensures the miniaturization and high isolation, so that the relative bandwidth of the antenna is large.
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 these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an antenna device with an ultra-wide screen according to the present invention;
fig. 2 is a schematic structural diagram of an ultra-wide screen antenna device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a feeding plate of an antenna device with an ultra-wide screen according to an embodiment of the present invention.
Detailed Description
The core of the utility model is to provide an antenna device of super wide screen, has ensured the miniaturization, on the basis of high isolation for the relative bandwidth of antenna is great.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an ultra-wide screen antenna device according to the present invention, the ultra-wide screen antenna device may include:
the dipole antenna comprises N groups of symmetrical dipoles for excitation feeding, wherein each group of symmetrical dipoles comprises two radiating dipole arms 10 and a balun 20 connected with the corresponding radiating dipole arms 10, and a feeding sheet is arranged between the two radiating dipole arms 10 of each group of symmetrical dipoles; wherein N is a positive integer;
the reflecting plate 30, and 2N baluns 20 are all fixed on the reflecting plate 30;
a support for fixing the metallic parasitic patches 40 above the N pairs of symmetric dipoles;
a metallic parasitic sheet 40;
a radio frequency connection module 50 connected with the N feed plates;
a radome 60 for cooperating with the reflection plate 30.
Specifically, in the scheme of the present application, the radiation element may be decomposed into two basic radiation unit models, one of the basic radiation unit models is a symmetric dipole antenna, and the other basic radiation unit model is a microstrip antenna.
The symmetric dipole antenna may include N pairs of symmetric dipoles, where N is a positive integer, and in practical applications, when N is 2, it is favorable to improve the quality of signal transmission when compared to N being 1, and certainly, when N takes a larger value, that is, when there are more pairs of symmetric dipoles, it is favorable to further improve the quality of signal transmission, but in practical applications, the size and the cost are considered, and the amplitude of improvement of the signal transmission quality is not high when N takes a larger value, so that the value of N may be selected to be 2. In the embodiments and drawings that follow the present application, N is 2 as an example. Of course, in practical application, the value of N can be set adaptively according to practical needs, and the implementation of the scheme is not affected.
The symmetric dipole antenna has the advantages of high isolation and light weight, so that N groups of symmetric dipoles are used for exciting and feeding in the scheme of the application. Each group of symmetric dipoles includes two radiating dipole arms 10 and a balun 20 connected to the corresponding radiating dipole arm 10, for example, in the embodiment of fig. 2, for convenience of description, the radiating dipole arm 10 near the upper left corner is referred to as a radiating dipole arm No. 1 11, and the balun 20 connected to the radiating dipole arm No. 1 11 is referred to as a balun 21 No. 1. Then, in a clockwise order, the radiating oscillator arm 10 near the upper right corner is referred to as a No. 2 radiating oscillator arm 12, and the balun 20 connected to the No. 2 radiating oscillator arm 12 is referred to as a No. 2 balun 22. The radiating dipole arm 10 near the lower right corner is referred to as a No. 3 radiating dipole arm 13, and the balun 20 connected to the No. 3 radiating dipole arm 13 is referred to as a No. 3 balun 23. The radiating oscillator arm 10 near the lower left corner is referred to as a No. 4 radiating oscillator arm 14, and the balun 20 connected to the No. 4 radiating oscillator arm 14 is referred to as a No. 4 balun 24. In fig. 2, the radiating dipole arm No. 1 11, the balun No. 1 21, and the radiating dipole arm No. 3 13 form a set of symmetric dipoles with the balun No. 3 23. Accordingly, the No. 2 radiating dipole arms 12, the No. 2 balun 22 and the No. 4 radiating dipole arm 14 in fig. 2 form another pair of symmetric dipoles with the No. 4 balun 24.
In the embodiment shown in fig. 3, a feeding tab is disposed between the two radiating dipole arms 10 of each group of symmetric dipoles, and the feeding tab disposed between the radiating dipole arm 1 and the radiating dipole arm 3, 11, 13, is referred to as a feeding tab 1, and the feeding tab disposed between the radiating dipole arm 2, 12, and the radiating dipole arm 4, 14, is referred to as a feeding tab 2, 72. In the embodiment of fig. 3, N is 2, and two sets of symmetric dipoles are perpendicular to each other, so feed tab 1 and feed tab 2 72 are also perpendicular to each other. The design that two sets of symmetric dipoles are perpendicular to each other is beneficial to improve signal quality, and it should be noted that No. 1 feed tab 71 and No. 2 feed tab 72 are not in contact, that is, the respective heights of No. 1 feed tab 71 and No. 2 feed tab 72 are different.
One end of the No. 1 feeding plate 71 is connected with the No. 3 radiating oscillator arm 13, and the other end of the No. 1 feeding plate 71 extends towards the No. 1 radiating oscillator arm 11, and is used for being connected with the No. 1 coaxial cable, so as to realize signal transmission between the radio frequency connection module 50 and the feeding plate. Specifically, the other end of the No. 1 feeding tab 71 is connected to the cable core of the No. 1 coaxial cable, and the housing of the No. 1 coaxial cable is in contact with the No. 1 radiating oscillator arm 11, and may be fixed by using a relevant component, for example, in fig. 3, a groove for fixing the coaxial cable is provided at the end of the No. 1 radiating oscillator arm 11 close to the No. 1 feeding tab 71.
Similarly, one end of No. 2 feeding tab 72 is connected to No. 2 radiating oscillator arm 12, and the other end of No. 2 feeding tab 72 extends toward No. 4 radiating oscillator arm 14 for connecting with No. 2 coaxial cable, and it can be seen in fig. 3 that a groove for fixing coaxial cable is provided at the end of No. 4 radiating oscillator arm 14 close to No. 2 feeding tab 72.
The rf connection module 50 is connected to the N feeding plates, and the rf connection module 50 may be specifically configured according to the related art, for example, in the embodiment of fig. 1 and 2, considering that the scheme has 2 sets of symmetric dipoles, the rf connection module 50 may be configured by 2 rf connectors, so as to be connected to 2 coaxial cables respectively, for receiving signals of the 2 sets of symmetric dipoles or sending signals to the 2 sets of symmetric dipoles.
Further, in an embodiment of the present invention, any one of the radiation oscillator arms 10 may be a planar structure, and a plane where any one of the radiation oscillator arms 10 is located is parallel to the reflection plate 30, which is beneficial to further improving the relative bandwidth.
In addition, when the oscillator arm is designed to have a shape with a wide middle and narrow two sides, it is beneficial to further improve the relative bandwidth, and therefore, in an embodiment of the present invention, any one of the radiating oscillator arms 10 may be the radiating oscillator arm 10 with a middle width larger than the end width. Each radiating dipole arm 10 in fig. 2 and 3 of the present application is designed to further broaden the relative bandwidth.
The specific size of the balun 20 of this application also can be set for according to actual need the utility model discloses an in a particular embodiment, two baluns 20 that include in every group symmetry dipole are parallel to each other, and two baluns 20 are planar structure. The structure is beneficial to further improving the relative bandwidth, and the sheet metal bending process can be conveniently adopted for manufacturing due to the planar structure, and the process is mature and low in cost. Of course, other manufacturing processes, such as die casting, may be selected according to the actual application. In addition, any one radiation oscillator arm 10 in the scheme of the application can be a planar structure, that is, any one radiation oscillator arm 10 can be a planar structure, and the manufacturing by adopting a sheet metal bending process is facilitated.
In the solution of the present application, each set of symmetric dipoles includes two radiating dipole arms 10 and a balun 20 connected to the corresponding radiating dipole arm 10, for example, in fig. 2, one end of a balun 21 No. 1 is connected to a radiating dipole arm 11 No. 1, and the other end is connected to a reflection plate 30. The balun No. 2 22 has one end connected to the radiating oscillator No. 2 arm 12 and the other end connected to the reflector 30. It should be noted that the balun 20 connected between the radiating oscillator arm 10 and the radiating oscillator arm 10 may be generally an integrated structure, that is, manufactured by a sheet metal bending process, and the balun 20 and the reflective plate 30 may be generally fixed by screws or the like, for example, fig. 1 and 2 both show the positions where 4 baluns 20 are fixed on the reflective plate 30.
In the solution of the present application, another model of the radiating element is a microstrip antenna. Specifically, a metal parasitic piece 40 is provided in the solution of the present application, and the specific size and the metal type of the metal parasitic piece 40 can be set and adjusted as needed, for example, considering that the weight of aluminum is light, an aluminum sheet can be selected as the metal parasitic piece 40. In practical application, after debugging and verification, it is better to find the bandwidth effect of rectangle, so in a specific embodiment of the utility model, metal parasitic piece 40 can be selected to aluminium system rectangle metal parasitic piece 40.
The metal parasitic sheet 40 needs to be supported by a support member, and is disposed above the N pairs of symmetric dipoles, and the specific structure of the support member is not shown in the drawings of the present application as long as the function of the support member of the present application can be achieved. For example, the metal parasitic pieces 40 may be supported by 4 plastic rods, the 4 plastic rods are respectively connected to four corners of the rectangular metal parasitic pieces 40, and the other ends of the plastic rods are respectively connected to the corresponding radiating oscillator arms 10, or the other ends of the plastic rods are connected to corresponding positions of the reflection plate 30, so that the metal parasitic pieces 40 can be supported and fixed.
The metal parasitic patch 40 acts as a radiating patch and the reflector plate 30 of the antenna may form a microstrip structure, while the symmetric dipole acts as an excitation feed. Therefore, the two basic models of the symmetrical dipole antenna and the microstrip antenna can form two resonance points in a frequency band needing to be designed, and the purpose of improving the relative bandwidth is achieved.
The radome 60 is used for cooperating with the reflecting plate 30 to protect these parts of N group symmetric dipole, metal parasitic piece 40 and support piece in the middle of the radome 60, fig. 1 shows the radome 60 structure in a specific occasion, in other embodiments, can select the radome 60 of other shapes, sizes as required, and do not influence the utility model discloses an implement. In addition, in the embodiment of fig. 2, the structure of 2 sets of symmetric dipoles is easily seen, and thus the radome 60 is not shown. And in practical application, the antenna device of the ultra-wide screen is usually installed at a preset position through an associated installation bracket.
The scheme of this application is guaranteeing the miniaturization, on the basis of high isolation for the relative bandwidth of antenna is great the utility model discloses an among the concrete implementation mode, the antenna device of the super wide screen that this application provided can be for covering the antenna device of the super wide screen of 470MHz to 806MHZ frequency channel.
Use the embodiment of the utility model provides a technical scheme, the radiation oscillator can be decomposed into two basic radiating element models, and one of them model is just the symmetric dipole antenna that comprises N group symmetric dipole, and another model is then microstrip antenna. Specifically, since the metal parasitic patch is fixed above the N pairs of symmetric dipoles, the metal parasitic patch can form a microstrip structure with the reflector plate as a radiation patch, and the N pairs of symmetric dipoles play a role in exciting feeding. Because two basic radiation unit models exist, the antenna device of the ultra-wide screen can form two resonance points in a frequency band needing to be designed, and therefore the relative bandwidth of the scheme is improved. In addition, the purpose of improving the relative bandwidth is achieved by arranging the metal parasitic pieces on the basis of the N groups of symmetrical dipoles, so that the scheme is simple in structure, and the isolation is high due to excitation feeding of the symmetrical dipoles. In conclusion, the scheme of the application ensures the miniaturization and high isolation, so that the relative bandwidth of the antenna is large.
Corresponding to the above embodiment of the antenna device with ultra-wide screen, the embodiment of the present invention further provides a communication device, which can include the antenna device with ultra-wide screen in any of the above embodiments, and can correspond to the above reference, and the description is not repeated here.
Since the antenna device of the ultra-wide screen provided by the application can be an antenna device of an ultra-wide screen covering 470MHz to 806MHz frequency bands, the communication device can be used in various communication frequency bands including 5G, that is, the communication device can be a 5G communication device.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The principle and the implementation of the present invention are explained herein by applying specific examples, and the above descriptions of the embodiments are only used to help understand the technical solution and the core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. An antenna assembly for an ultra-wide screen, comprising:
the dipole antenna comprises N groups of symmetric dipoles for excitation feeding, wherein each group of symmetric dipoles comprises two radiation oscillator arms and a balun connected with the corresponding radiation oscillator arm, and a feeding piece is arranged between the two radiation oscillator arms of each group of symmetric dipoles; wherein N is a positive integer;
the 2N baluns are all fixed on the reflecting plate;
a support member for fixing a metal parasitic piece above the N groups of symmetric dipoles;
the metal parasitic piece;
the radio frequency connecting module is connected with the N feed plates;
a radome for mating with the reflector plate.
2. The ultra-wide screen antenna device according to claim 1, wherein any one of the radiating dipole arms is a planar structure, and a plane on which any one of the radiating dipole arms is located is parallel to the reflection plate.
3. The ultra-wide screen antenna device according to claim 1, wherein any one of the radiating element arms is a radiating element arm having a width at a middle portion thereof larger than a width at an end portion thereof.
4. The ultra-wide screen antenna device according to claim 1, wherein two baluns included in each set of the symmetric dipoles are parallel to each other, and both baluns are in a planar structure.
5. The ultra-wide screen antenna device according to claim 4, wherein any of the radiating dipole arms is of a planar structure.
6. The ultra-wide screen antenna assembly of claim 1, wherein N-2 and the two sets of symmetric dipoles are perpendicular to each other.
7. The ultra-wide screen antenna device of claim 1, wherein the metal parasitic patches are aluminum rectangular metal parasitic patches.
8. An ultra-wide screen antenna arrangement as claimed in any one of claims 1 to 7, wherein the ultra-wide screen antenna arrangement is an ultra-wide screen antenna arrangement covering a frequency band of 470MHz to 806 MHz.
9. A communication device comprising an ultra-wide screen antenna arrangement as claimed in any one of claims 1 to 8.
10. The communication device of claim 9, wherein the communication device is a 5G communication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020727050.0U CN211629292U (en) | 2020-05-06 | 2020-05-06 | Communication equipment and antenna device of super wide screen thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020727050.0U CN211629292U (en) | 2020-05-06 | 2020-05-06 | Communication equipment and antenna device of super wide screen thereof |
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| Publication Number | Publication Date |
|---|---|
| CN211629292U true CN211629292U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020727050.0U Active CN211629292U (en) | 2020-05-06 | 2020-05-06 | Communication equipment and antenna device of super wide screen thereof |
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| CN (1) | CN211629292U (en) |
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- 2020-05-06 CN CN202020727050.0U patent/CN211629292U/en active Active
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