阅读说明：本技术 一种多模式移相装置及大规模阵列天线 (Multi-mode phase shifting device and large-scale array antenna ) 是由 姜盼 邵俊枫 储心一 于 2021-07-01 设计创作，主要内容包括：本申请提供了一种多模式移相装置及大规模阵列天线,该多模式移相装置包括：总线和至少两条支线,所述至少两条支线均与所述总线连接,所述总线用于与输入端连接,所述支线用于与天线阵列连接,所述总线上设置有移相器,至少一条所述支线上设置有一个断路开关。通过设置移相器和断路开关,能够进行模式切换,既可以实现波束可重构,在垂直面内进行宽波束和窄波束切换,也能够实现波束指向可调,从而能够满足不同的场景需求。(The application provides a multi-mode phase-shifting device and large-scale array antenna, this multi-mode phase-shifting device includes: the antenna comprises a bus and at least two branch lines, wherein the at least two branch lines are connected with the bus, the bus is used for being connected with an input end, the branch lines are used for being connected with an antenna array, a phase shifter is arranged on the bus, and a circuit breaker is arranged on at least one branch line. Mode switching can be carried out by arranging the phase shifter and the circuit breaker, wave beam reconstruction can be realized, wide wave beam and narrow wave beam switching can be carried out in a vertical plane, and wave beam pointing can be adjusted, so that different scene requirements can be met.)

1. A multi-mode phase shifting apparatus, comprising: the antenna comprises a bus and at least two branch lines, wherein the at least two branch lines are connected with the bus, the bus is used for being connected with an input end, the branch lines are used for being connected with an antenna array, a phase shifter is arranged on the bus, and a circuit breaker is arranged on at least one branch line.

2. The multi-mode phase shifting apparatus of claim 1, wherein: the phase shifter is a physical phase shifter.

3. The multi-mode phase shifting apparatus of claim 1, wherein: each branch line is provided with a circuit breaker.

4. A massive array antenna, comprising: an input end divided into two paths by a power divider, a first output end of the power divider is connected with a first antenna array group through a first multi-mode phase shifting device, a second output end of the power divider is connected with a second antenna array group through a second multi-mode phase shifting device, and the first multi-mode phase shifting device and the second multi-mode phase shifting device are both as set forth in any one of claims 1 to 3.

5. The massive array antenna of claim 4, wherein the first antenna array set comprises a first antenna array and a second antenna array, the first multi-mode phase shifting apparatus comprises a first branch and a second branch, the first branch is connected to the first antenna array, the second branch is connected to the second antenna array, the second antenna array set comprises a third antenna array and a fourth antenna array, the second multi-mode phase shifting apparatus comprises a third branch and a fourth branch, the third branch is connected to the third antenna array, and the fourth branch is connected to the fourth antenna array.

6. The massive array antenna of claim 5, wherein the first branch has a first disconnect switch disposed thereon, and the fourth branch has a second disconnect switch disposed thereon.

7. The massive array antenna of claim 5, wherein the first, second, third and fourth antenna arrays are equal in number.

8. The massive array antenna of claim 4, wherein a first digital phase shifter is coupled between the first output of the power divider and the first multimode phase shifting means, and a second digital phase shifter is coupled between the second output of the power divider and the second multimode phase shifting means.

Technical Field

The invention relates to a mobile communication antenna technology, in particular to a multi-mode phase shifting device and a large-scale array antenna.

Background

With the development of 5G test networks, the increase of the number of channels of a 5G base station system does not improve the perception of a single user, and the role of the method is mainly to increase the access capacity of multiple users, but also to increase the investment cost for network establishment. In practical application scenarios, such as outdoor dense hot spot scenarios, wide area coverage scenarios, indoor distribution scenarios, traffic main and tunnel scenarios, their demands on coverage and capacity are different.

In order to meet different requirements of a scene, how to provide an array antenna capable of reconstructing a beam and adjusting beam pointing becomes a problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a multi-mode phase shifting device and a large-scale array antenna, which can reconstruct a wave beam and adjust the direction of the wave beam.

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

According to an aspect of the present invention, there is provided a multi-mode phase shifting apparatus including: the antenna comprises a bus and at least two branch lines, wherein the at least two branch lines are connected with the bus, the bus is used for being connected with an input end, the branch lines are used for being connected with an antenna array, a phase shifter is arranged on the bus, and a circuit breaker is arranged on at least one branch line.

In one embodiment, the phase shifter of the multimode phase shifting device is a physical phase shifter.

In one embodiment, each branch of the multi-mode phase shifting apparatus is provided with a circuit breaker.

According to another aspect of the present invention, there is also provided a large-scale array antenna, including: the first output end of the power divider is connected with the first antenna array group through a first multi-mode phase shifting device, the second output end of the power divider is connected with the second antenna array group through a second multi-mode phase shifting device, and the first multi-mode phase shifting device and the second multi-mode phase shifting device are both as described in any one of the above embodiments.

In an embodiment, the first antenna array group of the massive array antenna includes a first antenna array and a second antenna array, the first multi-mode phase shifting device includes a first branch line and a second branch line, the first branch line is connected with the first antenna array, the second branch line is connected with the second antenna array, the second antenna array group includes a third antenna array and a fourth antenna array, the second multi-mode phase shifting device includes a third branch line and a fourth branch line, the third branch line is connected with the third antenna array, and the fourth branch line is connected with the fourth antenna array.

In an embodiment, a first disconnection switch is disposed on the first branch line of the large-scale array antenna, and a second disconnection switch is disposed on the fourth branch line.

In one embodiment, the first antenna array, the second antenna array, the third antenna array and the fourth antenna array of the large-scale array antenna are the same in number.

In an embodiment, a first digital phase shifter is connected between the first output end of the power divider and the first multimode phase shifting device, and a second digital phase shifter is connected between the second output end of the power divider and the second multimode phase shifting device.

The embodiment of the invention has the beneficial effects that: mode switching can be carried out by arranging the phase shifter and the circuit breaker, wave beam reconstruction can be realized, wide wave beam and narrow wave beam switching can be carried out in a vertical plane, and wave beam pointing can be adjusted, so that different scene requirements can be met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

The above features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.

FIG. 1 is a schematic diagram of a connection relationship (mode one) according to an embodiment of the present application;

FIG. 2 is an enlarged view of a first multimode phase shifting device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a connection relationship according to an embodiment of the present application (mode two);

wherein: 1-a power divider; 21-a first digital phase shifter; 22-a second digital phase shifter; 31-a first multimode phase-shifting device; 311-a bus; 312 — a first leg; 313-a second straight line; 314-a phase shifter; 315-circuit breaker; 32-a second multimode phase-shifting means; 321-third leg; 322-fourth leg; 41-a first antenna array; 42-a second antenna array; 43-a third antenna array; 44-fourth antenna array.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be construed as imposing any limitation on the scope of the present invention.

With the rapid development of the integrated communication system, the number of antennas as information ingress and egress channels is also increased accordingly, thereby increasing the cost of the integrated information system and the loss of the feeder line. The antenna with switchable beam direction (reconfigurable directional diagram) can change the beam coverage range of the transmitting antenna and the receiving antenna in real time according to the change of the communication environment, thereby effectively avoiding noise interference and improving the gain and the safety of the system. In addition, the beam direction switchable antenna generally uses one or a few feed ports, so that loss in the signal synthesis process can be avoided. In order to adjust the radiation state of the antenna according to the coverage area of the mobile communication system network, interference phenomenon, traffic volume and other conditions, the phase shifter is required to adjust the directional pattern of the antenna emitted by the base station so as to meet the requirement of flexibly adjusting coverage areas of different users.

The large-scale array antenna provided by the embodiment of the application can switch the beam direction and adjust the direction of the directional diagram through the phase shifter. As shown in fig. 1, the large-scale array antenna includes an input terminal divided into two paths by a power divider 1, a first output terminal of the power divider 1 is connected to a first antenna array group via a first multi-mode phase shifting device 31, and a second output terminal of the power divider 1 is connected to a second antenna array group via a second multi-mode phase shifting device 32. The first multi-mode phase shifting device 31 and the second multi-mode phase shifting device 32 have two functions: firstly, mutual switching between different modes can be carried out, beam reconfiguration is realized, and therefore wide beams and narrow beams can be selected on a vertical plane; and secondly, the vertical plane beam direction is electrically declined by playing the role of a physical phase shifter.

The first multi-mode phase shifting device 31 and the second multi-mode phase shifting device 32 have the same structure, and taking the first multi-mode phase shifting device 31 as an example, as shown in fig. 2, the first multi-mode phase shifting device includes a bus 311, a first branch 312 and a second branch 313, both the branches are connected to the bus 311, the bus 311 is connected to the first output terminal of the power divider, and the branches are connected to the antenna array. A phase shifter 314 is disposed on the bus 311, and preferably, the phase shifter 314 is a physical phase shifter. A cut-off switch 315 is provided on the first branch line 312. The switching between the two modes can be achieved by opening and closing the disconnect switch 315.

It should be noted that the number of the branch lines in the multi-mode phase shifting device is at least two, and at least one of the branch lines is provided with a cut-off switch, and in a possible embodiment, each branch line is provided with a cut-off switch.

In this embodiment, the first antenna array set includes a first antenna array 41 and a second antenna array 42, the first multi-mode phase shifting device includes a first branch 312 and a second branch 313, and the disconnection switch is disposed on the first branch 312. The first branch 312 is connected to the first antenna array 41 and the second branch 313 is connected to the second antenna array 42. The second antenna array group comprises a third antenna array 43 and a fourth antenna array 44, the second multi-mode phase shifting device 32 comprises a third branch 321 and a fourth branch 322, the disconnecting switch is arranged on the fourth branch 322, the third branch 321 is connected with the third antenna array 43, and the fourth branch 322 is connected with the fourth antenna array 44. Preferably, the number of the first antenna array 41, the second antenna array 42, the third antenna array 43 and the fourth antenna array 44 is the same.

In a possible embodiment a first digital phase shifter 21 is connected between the first output of the power divider 1 and the first multimode phase shifting means 31 and a second digital phase shifter 22 is connected between the second output of the power divider 1 and the second multimode phase shifting means 32.

Mode one operation as shown in fig. 1, when the power divider 1 receives an input signal, it equally divides the signal into the first digital phase shifter 21 and the second digital phase shifter 22. The first digital phase shifter 21 and the second digital phase shifter 22 perform a predetermined amplitude-phase parameter setting on the respective distributed signals, and output the signals to the first multimode phase shifting device 31 and the second multimode phase shifting device 32, respectively. The first multi-mode phase shifting device 31 and the second multi-mode phase shifting device 32 perform the phase shifting function in mode one. The first multimode phase shifting device 31 can perform amplitude phase prefabrication on the first antenna array 41 and the second antenna array 42; the second multi-mode phase shifting device can perform amplitude phase prefabrication for the third antenna array 43 and the fourth antenna array 44. Finally, mode one thus achieves narrow beam far coverage and beam pointing is adjustable through a combination of digital phase shifting and physical phase shifting.

Mode two operation as shown in fig. 3, when the power divider 1 receives an input signal, it equally divides the signal into the first digital phase shifter 21 and the second digital phase shifter 22. The first digital phase shifter 21 and the second digital phase shifter 22 perform a predetermined amplitude-phase parameter setting on the respective distributed signals, and output the signals to the first multimode phase shifting device 31 and the second multimode phase shifting device 32, respectively. First branch 312 of first multi-mode phase shifting means 31 and fourth branch 322 of second multi-mode phase shifting means 32 are in an open state in mode two. The first multi-mode phase shifting device 31 inputs only the second antenna array 42; the second multi-mode phase shifting means 32 inputs only the third antenna array 43. Finally, wide beam coverage is achieved, and beam pointing can be adjusted through digital phase shifting and physical phase shifting.

It is to be understood that more than two antenna arrays may be provided in the antenna array set, for example, a first antenna array, a second antenna array and a third antenna array may be provided in the first antenna array set, and a fourth antenna array, a fifth antenna array and a sixth antenna array may be provided in the second antenna array set. Correspondingly, the first multimode phase-shifting device and the second multimode phase-shifting device both comprise three branches, and a circuit breaker is arranged on each branch, so that three modes exist. In the first mode, the circuit breakers on all the branches are connected to realize the narrow beam far coverage. In the second mode, the first antenna array and the sixth antenna array are in an open circuit state, and the second antenna array, the third antenna array, the fourth antenna array and the fifth antenna array transmit signal beams, so that the beams are widened. In mode three, the first antenna array, the second antenna array, the fifth antenna array, and the sixth antenna array are in an open circuit state, and only the third antenna array and the fourth antenna array transmit a signal beam, which is the widest.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.