CN108631070B - Beam mode controllable antenna - Google Patents
Beam mode controllable antenna Download PDFInfo
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- CN108631070B CN108631070B CN201710173939.1A CN201710173939A CN108631070B CN 108631070 B CN108631070 B CN 108631070B CN 201710173939 A CN201710173939 A CN 201710173939A CN 108631070 B CN108631070 B CN 108631070B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/04—Multimode antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
Abstract
The invention discloses a beam mode controllable antenna, which comprises: the antenna comprises a transmitter, a radio frequency port group, a first switch group, a feed network group and an antenna array; the first switch group is arranged between the radio frequency port group and the feed network group; the transmitter is used for generating an electric signal and inputting the electric signal to the feed network group through the radio frequency port group; the feed network group comprises at least two feed networks; the feed network group is used for adjusting the amplitude and/or the phase of the electric signal so that each feed network corresponds to different beam modes; the first switch group is used for selecting a feed network accessed to the antenna array so as to control the beam mode of the antenna.
Description
Technical Field
The invention relates to an antenna technology in the field of communication, in particular to a beam mode controllable antenna.
Background
With the continuous progress of communication technology and the continuous optimization of wireless networks, the requirements on base station antennas are also higher and higher. For example, it is desirable for the base station antenna to be able to switch between different beam patterns.
However, the current base station antenna can only operate in a fixed beam mode, and if another beam mode is required, the current base station antenna needs to be replaced with another base station antenna. The method for replacing the base station antenna to achieve the beam mode replacement not only causes the wireless network upgrading optimization period to be overlong, but also causes serious waste because the replaced base station antenna is difficult to be reused.
Disclosure of Invention
In view of this, the embodiments of the present invention are expected to provide a beam-mode controllable antenna, which can shorten the network upgrade optimization period and reduce the waste.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a beam pattern controllable antenna, where the antenna includes: the antenna comprises a transmitter, a radio frequency port group, a first switch group, a feed network group and an antenna array; the first switch group is arranged between the radio frequency port group and the feed network group;
the transmitter is used for generating an electric signal and inputting the electric signal to the feed network group through the radio frequency port group;
the feed network group comprises at least two feed networks; the feed network group is used for adjusting the amplitude and/or the phase of the electric signal so that each feed network corresponds to different beam modes;
the first switch group is used for selecting a feed network accessed to the antenna array so as to control the beam mode of the antenna.
In the above solution, the feeding network group includes at least one N-beam X-angle feeding network and at least one M-beam Y-angle feeding network, and the beam patterns include an N-beam X-angle pattern and an M-beam Y-angle pattern;
the N wave beam X angle feed network enables the antenna to work in an N wave beam X angle mode; the M wave beam Y angle feed network enables the antenna to work in an M wave beam Y angle mode;
n, M are integers greater than or equal to 1, X, Y are angles greater than 0 degree and smaller than 360 degrees, N is not equal to M and/or X is not equal to Y.
In the above scheme, the antenna further includes a switch group control device, configured to control a connection manner between the first switch group and the feed network group.
In the above scheme, the transmitter is configured to generate a first electrical signal and a second electrical signal;
the radio frequency port group comprises a first radio frequency port and a second radio frequency port; the first radio frequency port is used for inputting the first electric signal to the feed network group, and the second radio frequency port is used for inputting the second electric signal to the feed network group;
the feed network group comprises a first feed network, a second feed network and a third feed network, the first feed network is a single-beam X-angle feed network, the second feed network is a single-beam Y-angle feed network, the third feed network is a dual-beam feed network, and X is not equal to Y;
the first switch group comprises a first switch and a second switch, and the first switch is used for controlling the connection mode of the first radio frequency port and the feed network group, so that at least one of the first feed network, the second feed network and the third feed network is connected to the antenna array to control the beam mode of the antenna; the second switch is configured to control a connection manner between the second radio frequency port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna.
In the above scheme, the antenna further includes a second switch group disposed between the feed network group and the antenna array;
the first switch group is used for controlling the connection mode of the radio frequency port group and the feed network group;
and the second switch group is used for controlling the connection mode of the feed network group and the antenna array.
In the above scheme, the antenna further includes a switch group control device, configured to control a connection manner between the first switch group and the feed network group, and the second switch group and the feed network group.
In the above scheme, the first switch group includes more than one switch; the switch is a mechanical switch or an electronic switch.
In the above scheme, the feed network is a butler matrix network.
In a second aspect, an embodiment of the present invention provides a beam pattern controllable antenna, where the antenna includes: the antenna comprises a transmitter, a radio frequency port group, a second switch group, a feed network group and an antenna array; the second switch group is arranged between the feed network group and the antenna array;
the transmitter is used for generating an electric signal and inputting the electric signal to the feed network group through the radio frequency port group;
the feed network group comprises at least two feed networks; the feed network group is used for adjusting the amplitude and/or the phase of the electric signal so that each feed network corresponds to different beam modes;
the second switch group is used for selecting a feed network accessed to the antenna array so as to control the beam mode of the antenna.
In the above solution, the feeding network group includes at least one N-beam X-angle feeding network and at least one M-beam Y-angle feeding network, and the beam patterns include an N-beam X-angle pattern and an M-beam Y-angle pattern;
the N wave beam X angle feed network enables the antenna to work in an N wave beam X angle mode; the M wave beam Y angle feed network enables the antenna to work in an M wave beam Y angle mode;
n, M are integers greater than or equal to 1, X, Y are angles greater than 0 degree and smaller than 360 degrees, N is not equal to M and/or X is not equal to Y.
In the above scheme, the transmitter is configured to generate a first electrical signal and a second electrical signal;
the radio frequency port group comprises a first radio frequency port and a second radio frequency port; the first radio frequency port is used for inputting the first electric signal to the feed network group, and the second radio frequency port is used for inputting the second electric signal to the feed network group;
the feed network group comprises a first feed network, a second feed network and a third feed network, the first feed network is a single-beam X-angle feed network, the second feed network is a single-beam Y-angle feed network, the third feed network is a dual-beam feed network, and X is not equal to Y;
the antenna array comprises a first feed port, a second feed port, a third feed port and a fourth feed port;
the second switch group comprises a first switch, a second switch, a third switch and a fourth switch, and the first switch is used for controlling the connection mode of the first feed port and the feed network group, so that at least one of the first feed network, the second feed network and the third feed network is connected to the antenna array to control the beam mode of the antenna; the second switch is configured to control a connection manner between the second feed port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna; the third switch is configured to control a connection manner between the third feed port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna; the fourth switch is configured to control a connection manner between the fourth feed port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna.
In the above scheme, the antenna further includes a switch group control device, configured to control a connection manner between the second switch group and the feed network group.
In the above solution, the second switch group includes more than one switch; the switch is a mechanical switch or an electronic switch.
In the above scheme, the feed network is a butler matrix network.
The beam mode controllable antenna provided by the embodiment of the invention comprises a first switch group and/or a second switch group and different feed networks corresponding to different beam modes, wherein the different feed networks are controlled to be accessed into an antenna array through the first switch group and/or the second switch group; different feed networks correspond to different beam modes, so that the beam modes used by the antenna can be controlled by controlling the different feed networks to be accessed to the antenna array through the first switch group and/or the second switch group; compared with the existing antenna, when the beam mode of the antenna is changed, the antenna does not need to be changed, and only different feed networks are controlled to be accessed to the antenna array through the first switch group and/or the second switch group, so that the problems that the wireless network upgrading optimization period is too long, and the changed antenna is difficult to be used again, so that serious waste is caused are solved; the effects of shortening the network upgrading optimization period and reducing waste are achieved. Furthermore, the operation is simple, convenient and flexible, and the application range is wider because the control is only needed through the switch group.
Drawings
Fig. 1A is a schematic structural diagram of an implementation of a beam-mode controllable antenna according to an embodiment of the present invention;
fig. 1B is a schematic structural diagram of another implementation of a beam-mode controllable antenna according to an embodiment of the present invention;
fig. 1C is a schematic structural diagram of an implementation of another beam-mode controllable antenna according to an embodiment of the present invention;
fig. 1D is a schematic structural diagram of an implementation of another beam-mode controllable antenna according to an embodiment of the present invention;
fig. 1E is a schematic structural diagram of an implementation structure of a single beam mode and a dual beam mode according to an embodiment of the present invention;
fig. 1F is a schematic structural diagram of an implementation of another beam-mode controllable antenna according to a first embodiment of the present invention;
fig. 2A is a schematic structural diagram of an implementation of a beam-mode controllable antenna according to a second embodiment of the present invention;
fig. 2B is a schematic structural diagram of another implementation of a beam-mode controllable antenna according to a second embodiment of the present invention;
fig. 3A is a schematic structural diagram of an implementation of a beam-mode controllable antenna according to a third embodiment of the present invention;
fig. 3B is a schematic structural diagram of another implementation of a beam-mode controllable antenna according to a third embodiment of the present invention;
fig. 3C is a schematic structural diagram of another implementation of a beam-mode controllable antenna according to a third embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example one
Referring to fig. 1A, the antenna of this embodiment includes: transmitter 10, radio frequency port group 11, first switch group 12, feed network group 13 and antenna array 14.
The transmitter 10 is configured to generate an electrical signal and input the electrical signal to the feeding network group 13 through the radio frequency port group 11.
In addition, referring to the antenna shown in fig. 1B, the feeding network group 13 includes n feeding networks, n is greater than or equal to 2, and at least two feeding networks in the n feeding networks are different. Wherein each feed network is used to adjust the amplitude and/or phase of the electrical signal. Furthermore, the difference of the feed networks indicates that the feed networks have different adjustment degrees of amplitude and/or phase of the electric signals, so that the adjusted electric signals are different.
Optionally, the feeding network group 13 includes at least one N-beam X-angle feeding network and at least one M-beam Y-angle feeding network. The N-beam X-angle feed network is used for adjusting the amplitude and/or the phase of an electric signal and inputting the adjusted electric signal to at least one row of vibrators, so that the row of vibrators receiving the adjusted electric signal work in an N-beam X-angle mode, and the beam mode of the antenna comprises the N-beam X-angle mode; and the M-beam Y-angle feed network is used for adjusting the amplitude and/or the phase of the electric signal and inputting the adjusted electric signal to at least one row of vibrators, so that the row of vibrators receiving the electric signal work in an M-beam Y-angle mode, and the beam mode of the antenna comprises the M-beam Y-angle mode. In this case, therefore, the beam patterns of the antenna include at least an N-beam X-angle pattern and an M-beam Y-angle pattern. N, M are integers greater than or equal to 1, X, Y are angles greater than 0 degree and smaller than 360 degrees, N is not equal to M and/or X is not equal to Y. Of course, the feeding network group 13 may further include a greater variety of feeding networks, so that the antenna includes a greater variety of beam patterns, which is not limited in this embodiment of the present invention.
Illustratively, referring to the antenna shown in fig. 1C, feed network set 13 includes 3 feed networks, which are a single-beam X-angle feed network, a single-beam Y-angle feed network, and a dual-beam feed network, respectively. The single-beam X-angle feed network adjusts and inputs the self electric signal and inputs the adjusted electric signal to the antenna array, so that the working mode of the antenna comprises a single-beam X-angle mode; the single-beam Y-angle feed network adjusts and inputs the electric signals of the single-beam Y-angle feed network, and inputs the adjusted electric signals into the antenna array, so that the working mode of the antenna comprises a single-beam Y-angle mode; the dual-beam feed network adjusts the input electric signal and inputs the adjusted electric signal to the antenna array, so that the working mode of the antenna comprises a dual-beam mode. The beam patterns of the antenna include a single beam X angle pattern, a single beam Y angle pattern, and a dual beam pattern.
Further, the single beam feed network may include a power divider to adjust the amplitude of the electrical signal, so that the beam mode corresponding to the adjusted electrical signal is a single beam mode; the dual-beam feed network may include a power divider and a phase shifter to adjust the amplitude and phase of the electrical signal so that the beam mode corresponding to the adjusted electrical signal is a dual-beam mode.
It is the prior art how to adjust the input electrical signal by the power divider and the phase shifter in the feeding network to make the antenna operate in the corresponding beam mode, and details thereof are not described herein.
The first switch group 12 is disposed between the radio frequency port group 11 and the feed network group 13, and is configured to control a connection manner between the radio frequency port group 11 and the feed network group 13, so as to select a feed network of the access antenna array 14, and to control a beam pattern included in the antenna.
Specifically, when the N-beam X-angle feed network is accessed to the antenna array 14, the working mode of the antenna includes an N-beam X-angle mode; when the M-beam Y-angle feed network is accessed to the antenna array 14, the operating mode of the antenna includes an M-beam Y-angle mode; when the N-beam X-angle feed network and the M-beam Y-angle feed network are simultaneously connected to the antenna array 14, the operating modes of the antenna include an N-beam X-angle mode and an M-beam Y-angle mode.
It should be noted that the N-beam X-angle feed network is accessed to the antenna array 14, and the N-beam X-angle feed network is accessed to at least one row of elements included in the antenna array 14, so that the row of elements accessed to the N-beam X-angle feed network operates in the N-beam X-angle mode, and thus the operating mode of the antenna includes the N-beam X-angle mode; the M-beam Y-angle feed network is connected to the antenna array 14, and the M-beam Y-angle feed network is connected to at least one row of elements included in the antenna array 14, so that the row of elements connected to the M-beam Y-angle feed network operates in an M-beam Y-angle mode, and thus the operating mode of the antenna includes the M-beam Y-angle mode.
Still taking the example shown in fig. 1C above as an example, when at least one of the two single-beam feeding networks is connected to the antenna array 14, the beam pattern of the antenna includes a single-beam pattern; when the dual beam feed network is accessed to the antenna array 14, the beam pattern of the antenna comprises a dual beam pattern; when the single beam feed network and the dual beam feed network are accessed to the antenna array 14, the beam patterns of the antenna include a single beam pattern and a dual beam pattern.
Further, a feed network may be connected to one row of elements of the antenna array 14, or may be connected to two rows of elements of the antenna array. The embodiment of the present invention is not limited thereto.
Optionally, the first switch group 12 comprises at least one switch; the switch is a mechanical switch or an electronic switch.
Optionally, the feed network is a butler matrix network.
For example, referring to fig. 1D, the antenna provided in this embodiment may specifically be:
the transmitter 10 is specifically configured to generate a first electrical signal 10a and a second electrical signal 10 b.
The feed network group 13 includes a first feed network 13a, a second feed network 13b, and a third feed network 13c, where the first feed network 13a and the second feed network 13b are single beam feed networks, the third feed network 13c is a dual beam feed network, and angles of beams corresponding to the first feed network 13a and the second feed network 13b are different, and here, the first feed network 13a is taken as a single beam X angle feed network, and the second feed network 13b is taken as a single beam Y angle feed network as an example. The beam angle corresponding to the single beam feed network may be the same as or different from the beam angle corresponding to the multi-beam feed network.
The radio frequency port group 11 comprises a first radio frequency port 11a and a second radio frequency port 11 b; a first radio frequency port 11a for inputting the first electrical signal 10a to the first feeding network 13a or the third feeding network 13c, and a second radio frequency port 11b for inputting the second electrical signal 10b to the second feeding network 13b or the third feeding network 13 c.
The antenna array 14 includes four columns of elements, a first column of elements 14a, a second column of elements 14b, a third column of elements 14c, and a fourth column of elements 14 d. The first column of oscillators 14a are connected with the first feed network 13a and the third feed network 13c, the second column of oscillators 14b are connected with the first feed network 13a and the third feed network 13c, the third column of oscillators 14c are connected with the second feed network 13b and the third feed network 13c, and the fourth column of oscillators 14d are connected with the second feed network 13b and the third feed network 13 c.
The first switch group 12 includes a first switch 12a and a second switch 12 b.
Specifically, as shown in fig. 1D, the first switch 12a controls the first radio frequency port 11a to be connected to the first feed network 13a or the third feed network 13c, so that the first feed network 13a or the third feed network 13c is connected to the antenna array 14, specifically to the first row of elements 14a and the second row of elements 14 b. Since the first feed network 13a is a single-beam X-angle feed network and the third feed network 13c is a dual-beam feed network, when the first feed network 13a is connected to the first row of oscillators 14a and the second row of oscillators 14b, the working modes of the first row of oscillators 14a and the second row of oscillators 14b are in a single-beam X-angle mode, and the working mode of the antenna includes the single-beam X-angle mode; when the third feeding network 13c is connected to the first column of elements 14a and the second column of elements 14b, the operation mode of the first column of elements 14a and the second column of elements 14b is a dual-beam mode, and the operation mode of the antenna includes the dual-beam mode.
The second switch 12b controls the second radio frequency port 11b to be connected to the second feed network 13b or the third feed network 13c, so that the second feed network 13b or the third feed network 13c is connected to the antenna array 14, specifically to the third row of oscillators 14c and the fourth row of oscillators 14 d. Since the second feed network 13b is a single-beam Y-angle feed network and the third feed network 13c is a dual-beam feed network, when the second feed network 13b is connected to the third column of oscillators 14c and the fourth column of oscillators 14d, the working modes of the third column of oscillators 14c and the fourth column of oscillators 14d are in a single-beam Y-angle mode, and the working mode of the antenna includes a single-beam Y-angle mode; when the third feed network 13c is connected to the third column of elements 14c and the fourth column of elements 14d, the operation mechanism of the third column of elements 14c and the fourth column of elements 14d is in a dual-beam mode, and the operation mode of the antenna includes the dual-beam mode.
In addition, a single pole double throw switch is used in fig. 1D to select one feed network access for each rf port. In practical applications, other types of switches, such as double pole double throw, etc., may be used as needed, and the embodiment of the present invention is not limited thereto. Illustratively, if one rf port needs to be connected to two feeding networks at the same time, a double-pole double-throw switch may be used.
Further, the first feeding network 13a and the second feeding network 13b may be one or more power splitters; the third feeding network 13c may comprise one or more power splitters that split one electrical signal into two or more electrical signals while also changing the amplitude of the electrical signals. It should be noted that, in fig. 1D, a power divider is disposed at a position where one electrical signal is divided into two or more electrical signals, and not all of the power dividers are shown in fig. 1D. The third feeding network 13c further comprises a phase shifter for changing the phase of the electrical signal. As in fig. 1D, the third feeding network 13c comprises 6 phase shifters, respectively 4 180 degree phase shifters and 2 90 degree phase shifters.
Additionally, referring to fig. 1E, fig. 1E shows a single beam and dual beam schematic.
Wherein the horizontal axis represents the beam angle and the vertical axis represents the gain.
Where beams 1, 2 and 3 are the main beams and beams 4, 5, 6 and 7 are the side lobes. Further, beam 2 is a single beam, beam 1 is a dual-beam left beam, and beam 3 is a dual-beam right beam.
Optionally, referring to fig. 1F, the antenna further includes a switch group control device 15, configured to control a connection manner between the first switch group 12 and the feed network group 13, so as to control the first switch group 12 to select a desired feed network to access the antenna array 14. Of course, the control can be performed directly by manual operation without using the switch group control device 15.
In addition, each column of elements of the antenna array 14 includes a feeding port (not shown in the figures), and when the feeding network group 13 feeds electricity to each column of elements, the feeding port feeds the electricity to each column of elements to provide the electricity to the corresponding column of elements.
In addition, it should be noted that the antenna shown in fig. 1D is only an example, and the number of the electrical signals that need to be transmitted by the transmitter 10, the number of the radio frequency ports included in the radio frequency port group 11, the number of the switches and the types of the switches included in the first switch group 12, and the number of the element columns included in the antenna array 14 may be specifically designed according to a beam pattern required by an application scenario of the antenna.
In addition, after the antenna is designed, the corresponding relationship between each beam pattern and the connection mode of the switches may be designed according to the beam pattern included in the antenna and the number and types of the switches included in the first switch group 12, and the corresponding relationship may be stored. Thus, when the antenna needs to work in a certain beam mode, the connection mode can be directly obtained from the corresponding relation. Specifically, the switch group control device may control the beam pattern of the antenna by:
firstly, receiving a beam mode change instruction sent by instruction equipment, and acquiring a beam mode carried in the beam mode change instruction.
The instruction device may be a Remote device, and specifically may be a Radio Remote Unit (RRU) or a baseband processing Unit (BBU).
In addition, the switch group control device further comprises a processing unit for receiving transmission data or instructions and the like.
And secondly, acquiring a corresponding switch connection mode from a preset corresponding relation according to the acquired beam mode.
And thirdly, controlling each switch included in the first switch group according to the acquired switch connection mode to enable the connection mode of each switch to be the same as the acquired switch connection mode.
When the connection mode of each switch included in the first switch group is the same as the acquired connection mode of the switch, the corresponding feed network can be accessed to the antenna array, so that the antenna array works in a required beam mode.
In summary, the beam pattern controllable antenna provided in the embodiment of the present invention includes different feed networks and a first switch group, and different feed networks are controlled by the first switch group to access the antenna array, and because different feed networks correspond to different beam patterns, the beam pattern of the antenna can be controlled when different feed networks are controlled by the first switch group to access the antenna array; compared with the existing antenna, when the beam mode of the antenna is changed, the antenna does not need to be changed, and only different feed networks are controlled to be accessed to the antenna array through the first switch group, so that the problems that the wireless network upgrading optimization period is too long, and the changed antenna is difficult to be used again, so that serious waste is caused are solved; the effects of shortening the network optimization period and reducing waste are achieved.
Example two
In contrast to the first embodiment, the antenna provided in this embodiment includes the second switch set but does not include the first switch set; the position of the second switch set is different from the position of the first switch set in the first embodiment. Referring to fig. 2A, the antenna of the present embodiment includes: a transmitter 10, a set of radio frequency ports 11, a second set of switches 16, a set of feed networks 13, and an antenna array 14.
The structure or the function of the transmitter 10, the radio frequency port group 11, the feed network group 13, and the antenna array 14 is the same as or similar to that of the first embodiment, and will not be described herein again.
In addition, the second switch group 16 is disposed between the feeding network group 13 and the antenna array 14. A second switch set 16 is also used to select a feed network to access the antenna array 14 to control the beam pattern of the antenna. But in a different manner than the first switch set 12. Specifically, the second switch group 16 controls the connection manner of the feeding network group 13 and the antenna array 14 to select different feeding networks to be connected to the antenna array 14.
For example, referring to fig. 2B, the antenna provided in this embodiment may specifically be:
the transmitter 10 is specifically configured to generate a first electrical signal 10a and a second electrical signal 10 b.
The feed network group 13 includes a first feed network 13a, a second feed network 13b, and a third feed network 13c, where the first feed network 13a and the second feed network 13b are single beam feed networks, the third feed network 13c is a dual beam feed network, and angles of beams corresponding to the first feed network 13a and the second feed network 13b are different, and here, the first feed network 13a is taken as a single beam X angle feed network, and the second feed network 13b is taken as a single beam Y angle feed network as an example. The beam angle corresponding to the single beam feed network may be the same as or different from the beam angle corresponding to the multi-beam feed network.
The rf port group 11 includes a first rf port 11a and a second rf port 11 b. The first radio frequency port 11a is connected to the first feed network 13a and the third feed network 13c, and is configured to input the first electrical signal 10a to the first feed network 13a and the third feed network 13 c; the second rf port 11b is connected to the second feeding network 13b and the third feeding network 13c, and is configured to input the second electrical signal 10b to the second feeding network 13b and the third feeding network 13 c.
The antenna array 14 includes four columns of elements, a first column of elements 14a, a second column of elements 14b, a third column of elements 14c, and a fourth column of elements 14 d. The first column of oscillators 14a is connected with the first feed network 13a or the third feed network 13c, the second column of oscillators 14b is connected with the first feed network 13a or the third feed network 13c, the third column of oscillators 14c is connected with the second feed network 13b or the third feed network 13c, and the fourth column of oscillators 14d is connected with the second feed network 13b or the third feed network 13 c.
The second switch group 16 includes a third switch 16a, a fourth switch 16b, a fifth switch 16c, and a sixth switch 16 d.
Specifically, still referring to fig. 2B, the connection mode of the second switch group 16 for controlling the feeding network group 13 specifically is:
and a third switch 16a, configured to control a connection manner between the first column element 14a and the first feed network 13a and the third feed network 13c, so that the first feed network 13a or the third feed network 13c is connected to the first column element 14a, so as to control a beam pattern of the antenna. Specifically, when the first feed network 13a is connected to the first column of elements 14a, the working mode of the first column of elements 14a is a single beam X angle mode, and the working mode of the antenna includes the single beam X angle mode; when the third feeding network 13c is switched into the first column of elements 14a, the operation mode in the first column of elements 14a is a dual-beam mode, and the operation mode of the antenna comprises the dual-beam mode.
And the fourth switch 16b is used for controlling the connection mode of the second column of elements 14a with the first feed network 13a and the third feed network 13c, so that the first feed network 13a or the third feed network 13c is connected to the second column of elements 14b to control the beam mode of the antenna. Specifically, when the first feed network 13a is connected to the second row of oscillators 14b, the operating mode of the second row of oscillators 14b is a single beam X angle mode, and the operating mode of the antenna includes the single beam X angle mode; when the third feeding network 13c is switched into the second column of elements 14b, the mode of operation of the antenna comprises the dual-beam mode, which is the dual-beam mode of the mode of operation of the second column of elements 14 b.
And a fifth switch 16c, configured to control a connection manner between the third column element 14c and the second feed network 13b and the third feed network 13c, so that the second feed network 13b or the third feed network 13c is connected to the third column element 14c, so as to control a beam pattern of the antenna. Specifically, when the second feed network 13b is connected to the third column of elements 14c, the working mode of the third column of elements 14c is a single beam Y angle mode, that is, the working mode of the antenna includes the single beam Y angle mode; when the third feeding network 13c is switched in to the third column of elements 14c, the mode of operation of the third column of elements 14c is a dual beam mode, i.e. the mode of operation of the antenna comprises a dual beam mode.
And a sixth switch 16d, configured to control a connection manner between the fourth column element 14d and the second feed network 13b and the third feed network 13c, so that the second feed network 13b or the third feed network 13c is connected to the fourth column element 14d, so as to control a beam pattern of the antenna. Specifically, when the second feed network 13b is connected to the fourth row of elements 14d, the working mode of the fourth row of elements 14d is a single beam Y angle mode, that is, the working mode of the antenna includes the single beam Y angle mode; when the third feeding network 13c is connected to the fourth column of elements 14d, the operation mode of the fourth column of elements 14d is a dual-beam mode, that is, the operation mode of the antenna includes the dual-beam mode.
In addition, other expansion and optional contents related to the transmitter 10, the radio frequency port group 11, the feed network group 13, and the antenna array 14 are the same as or similar to those in the first embodiment, and are described herein again.
In addition, the control method related to the antenna beam pattern is the same as or similar to that in the first embodiment, and is described herein in detail.
The second switch group 16 in this embodiment may be designed as needed, and may be the same as or different from the first switch group 12.
In summary, the beam mode controllable antenna provided in the embodiment of the present invention includes different feed networks and a second switch group, and different feed networks are controlled to access to the antenna array through the second switch group, and because different feed networks correspond to different beam modes, the beam mode of the antenna can be controlled when different feed networks are controlled to access to the antenna array through the second switch group; compared with the existing antenna, when the beam mode of the antenna is changed, the antenna does not need to be changed, and only different feed networks are controlled to be accessed to the antenna array through the second switch group, so that the problems that the wireless network is too long in upgrading optimization period, and the changed antenna is difficult to be used again, so that serious waste is caused are solved; the effects of shortening the network optimization period and reducing waste are achieved.
EXAMPLE III
Compared with the antennas provided in the first and second embodiments, the antenna provided in this embodiment includes both the first switch set shown in the first embodiment and the second switch set shown in the second embodiment, and the position of the first switch set is different from the position of the second switch set. Referring to fig. 3A, the antenna of the present embodiment includes: a transmitter 10, a set of radio frequency ports 11, a first set of switches 12, a set of feed networks 13, a second set of switches 16, and an antenna array 14.
The structure or the function of the transmitter 10, the radio frequency port group 11, the feed network group 13, and the antenna array 14 is the same as or similar to that of the first embodiment and the second embodiment, and will not be described herein again.
The first switch group 12 is disposed between the radio frequency port group 11 and the feed network group 13, and is configured to control a connection manner between the radio frequency port group 11 and the feed network group 13, so as to select a feed network of the access antenna array 14, and to control a beam pattern included in the antenna; and the second switch group 16 is disposed between the feeding network group 13 and the antenna array 14, and is configured to control a connection manner between the feeding network group 13 and the antenna array 14, so as to select a feeding network accessing the antenna array 14, and control a beam pattern included in the antenna. In this way, the feeding network connected to the antenna array 14 is jointly selected by the first switch group 12 and the second switch group 16 to control the operation mode of the antenna.
When the feed network connected to the antenna array 14 is controlled by the first switch group 12 and the second switch group 16, the control is more flexible because the first switch group 12 and the second switch group 16 are controlled together, compared with the control using only one switch group, the connection mode of the feed network and the antenna array can be more obtained.
Referring to fig. 3B, the switch group control device 15 is further configured to control the first switch group 12 and the second switch group 16, so that the first switch group 12 and the second switch group 16 select a desired feeding network group to be connected to the antenna array 14.
Referring to fig. 3C, the antenna provided in this embodiment may specifically be:
the transmitter 10 is specifically configured to generate a first electrical signal 10a and a second electrical signal 10 b.
The feed network group 13 includes a first feed network 13a, a second feed network 13b, and a third feed network 13c, where the first feed network 13a and the second feed network 13b are single beam feed networks, the third feed network 13c is a dual beam feed network, and angles of beams corresponding to the first feed network 13a and the second feed network 13b are different, and here, the first feed network 13a is taken as a single beam X angle feed network, and the second feed network 13b is taken as a single beam Y angle feed network as an example. The beam angle corresponding to the single beam feed network may be the same as or different from the beam angle corresponding to the multi-beam feed network.
The rf port group 11 includes a first rf port 11a and a second rf port 11 b. The first radio frequency port 11a is connected to the first feed network 13a and the third feed network 13c, and is configured to input the first electrical signal 10a to the first feed network 13a and the third feed network 13 c; the second rf port 11b is connected to the second feeding network 13b and the third feeding network 13c, and is configured to input the second electrical signal 10b to the second feeding network 13b and the third feeding network 13 c.
The antenna array 14 includes four columns of elements, a first column of elements 14a, a second column of elements 14b, a third column of elements 14c, and a fourth column of elements 14 d. The first column of oscillators 14a is connected with the first feed network 13a or the third feed network 13c, the second column of oscillators 14b is connected with the first feed network 13a or the third feed network 13c, the third column of oscillators 14c is connected with the second feed network 13b or the third feed network 13c, and the fourth column of oscillators 14d is connected with the second feed network 13b or the third feed network 13 c.
The first switch group 12 includes a first switch 12a and a second switch 12 b.
The second switch group 16 includes a third switch 16a, a fourth switch 16b, a fifth switch 16c, and a sixth switch 16 d.
As for the connection mode of the first switch group 12 controlling the feeding network connected to the antenna array 14, the connection mode shown in fig. 1D may be implemented, which is not described herein again. The connection mode of the second switch group 16 controlling the feeding network connected to the antenna array 14 may refer to the connection mode shown in fig. 2B, which is not described herein again.
Illustratively, one end of the first feeding network 13a is connected to the first switch 12a in the first switch group 12, and the other end of the first feeding network 13a is connected to the third switch 16a in the second switch group 16, so that the first feeding network 13a is connected into the first column of elements 14a, and the first column of elements 14a operates in the single-beam X-angle mode, thereby enabling the operation mode of the antenna array 14 to be the single-beam X-angle mode.
Of course, there may be other connection modes between the first switch group 12 and the second switch group 16 and the feeding network, and the other connection modes related to the switches included in the first switch group 12 and the second switch group 16 are not described in detail herein.
In addition, other expansion and optional contents related to the transmitter 10, the radio frequency port group 11, the feed network group 13, and the antenna array 14 are the same as or similar to those in the first embodiment and the second embodiment, and are not described herein again.
In addition, the control method related to the antenna beam pattern is the same as or similar to that in the first embodiment, and is described herein in detail.
In summary, the beam mode controllable antenna provided in the embodiments of the present invention includes different feed networks, a first switch group and a second switch group, and different feed networks are controlled to access the antenna array through the first switch group and the second switch group, and because different feed networks correspond to different beam modes, the beam mode of the antenna can be controlled when different feed networks are controlled to access the antenna array through the first switch group and the second switch group; compared with the existing antenna, when the beam mode of the antenna is changed, the antenna does not need to be changed, and only different feed networks are controlled to be accessed to the antenna array through the first switch group and the second switch group, so that the problems that the wireless network upgrading optimization period is too long, and the changed antenna is difficult to be used again, so that serious waste is caused are solved; the effects of shortening the network optimization period and reducing waste are achieved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (12)
1. A beam pattern controllable antenna, comprising: the antenna comprises a transmitter, a radio frequency port group, a first switch group, a feed network group and an antenna array; the first switch group is arranged between the radio frequency port group and the feed network group;
the transmitter is used for generating an electric signal and inputting the electric signal to the feed network group through the radio frequency port group;
the feed network group comprises at least two feed networks; the feed network group is used for adjusting the amplitude and/or the phase of the electric signal so that each feed network corresponds to different beam modes;
the first switch group is used for selecting a feed network accessed to the antenna array so as to control a beam mode of the antenna;
the feed network group comprises at least one N-beam X-angle feed network and at least one M-beam Y-angle feed network, and the beam modes comprise an N-beam X-angle mode and an M-beam Y-angle mode;
the N wave beam X angle feed network enables the antenna to work in an N wave beam X angle mode; the M wave beam Y angle feed network enables the antenna to work in an M wave beam Y angle mode;
n, M are integers greater than or equal to 1, X, Y are angles greater than 0 degree and smaller than 360 degrees, N is not equal to M and/or X is not equal to Y.
2. The antenna of claim 1, further comprising a switch set control means for controlling the connection of the first switch set to the feed network set.
3. The antenna of claim 1,
the transmitter is used for generating a first electric signal and a second electric signal;
the radio frequency port group comprises a first radio frequency port and a second radio frequency port; the first radio frequency port is used for inputting the first electric signal to the feed network group, and the second radio frequency port is used for inputting the second electric signal to the feed network group;
the feed network group comprises a first feed network, a second feed network and a third feed network, the first feed network is a single-beam X-angle feed network, the second feed network is a single-beam Y-angle feed network, the third feed network is a dual-beam feed network, and X is not equal to Y;
the first switch group comprises a first switch and a second switch, and the first switch is used for controlling the connection mode of the first radio frequency port and the feed network group, so that at least one of the first feed network, the second feed network and the third feed network is connected to the antenna array to control the beam mode of the antenna; the second switch is configured to control a connection manner between the second radio frequency port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna.
4. The antenna of claim 1, further comprising a second switch set disposed between the feed network set and the antenna array;
the first switch group is used for controlling the connection mode of the radio frequency port group and the feed network group;
and the second switch group is used for controlling the connection mode of the feed network group and the antenna array.
5. The antenna of claim 4, further comprising a switch group control device for controlling the connection of the first switch group and the second switch group to the feed network group.
6. The antenna of claim 1, wherein the first switch set comprises more than one switch; the switch is a mechanical switch or an electronic switch.
7. The antenna of claim 1, wherein the feed network is a butler matrix network.
8. A beam pattern controllable antenna, comprising: the antenna comprises a transmitter, a radio frequency port group, a second switch group, a feed network group and an antenna array; the second switch group is arranged between the feed network group and the antenna array;
the transmitter is used for generating an electric signal and inputting the electric signal to the feed network group through the radio frequency port group;
the feed network group comprises at least two feed networks; the feed network group is used for adjusting the amplitude and/or the phase of the electric signal so that each feed network corresponds to different beam modes;
the second switch group is used for selecting a feed network accessed to the antenna array so as to control the beam mode of the antenna;
the feed network group comprises at least one N-beam X-angle feed network and at least one M-beam Y-angle feed network, and the beam modes comprise an N-beam X-angle mode and an M-beam Y-angle mode;
the N wave beam X angle feed network enables the antenna to work in an N wave beam X angle mode; the M wave beam Y angle feed network enables the antenna to work in an M wave beam Y angle mode;
n, M are integers greater than or equal to 1, X, Y are angles greater than 0 degree and smaller than 360 degrees, N is not equal to M and/or X is not equal to Y.
9. The antenna of claim 8,
the transmitter is used for generating a first electric signal and a second electric signal;
the radio frequency port group comprises a first radio frequency port and a second radio frequency port; the first radio frequency port is used for inputting the first electric signal to the feed network group, and the second radio frequency port is used for inputting the second electric signal to the feed network group;
the feed network group comprises a first feed network, a second feed network and a third feed network, the first feed network is a single-beam X-angle feed network, the second feed network is a single-beam Y-angle feed network, the third feed network is a dual-beam feed network, and X is not equal to Y;
the antenna array comprises a first feed port, a second feed port, a third feed port and a fourth feed port;
the second switch group comprises a first switch, a second switch, a third switch and a fourth switch, and the first switch is used for controlling the connection mode of the first feed port and the feed network group, so that at least one of the first feed network, the second feed network and the third feed network is connected to the antenna array to control the beam mode of the antenna; the second switch is configured to control a connection manner between the second feed port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna; the third switch is configured to control a connection manner between the third feed port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna; the fourth switch is configured to control a connection manner between the fourth feed port and the feed network group, so that at least one of the first feed network, the second feed network, and the third feed network is connected to the antenna array to control a beam pattern of the antenna.
10. The antenna of claim 8, further comprising a switch set control means for controlling the connection of the second switch set to the feed network set.
11. The antenna of claim 8, wherein the second switch set comprises more than one switch; the switch is a mechanical switch or an electronic switch.
12. The antenna of claim 8, wherein the feed network is a butler matrix network.
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| CN201710173939.1A CN108631070B (en) | 2017-03-22 | 2017-03-22 | Beam mode controllable antenna |
| PCT/CN2018/079715 WO2018171600A1 (en) | 2017-03-22 | 2018-03-21 | Beam mode-controllable antenna |
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| CN201710173939.1A CN108631070B (en) | 2017-03-22 | 2017-03-22 | Beam mode controllable antenna |
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| CN112054312B (en) | 2019-06-06 | 2022-10-18 | 北京小米移动软件有限公司 | Antenna structure and electronic device |
| CN112054313A (en) | 2019-06-06 | 2020-12-08 | 北京小米移动软件有限公司 | Antenna structure, electronic equipment, antenna structure array method and device |
| CN110838621B (en) * | 2019-11-19 | 2020-11-20 | 北京邮电大学 | Multi-beam antenna feeding device and method |
| CN112564731B (en) * | 2020-12-03 | 2022-03-25 | 维沃移动通信有限公司 | Signal processing circuit, method and electronic device |
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|---|---|---|---|---|
| US4032922A (en) * | 1976-01-09 | 1977-06-28 | The United States Of America As Represented By The Secretary Of The Navy | Multibeam adaptive array |
| WO2004044610A1 (en) * | 2002-11-13 | 2004-05-27 | Raytheon Company | Antenna configurations for reduced radar complexity |
| CN102856667A (en) * | 2012-09-06 | 2013-01-02 | 上海瀚讯无线技术有限公司 | Multi-beam antenna system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6583763B2 (en) * | 1999-04-26 | 2003-06-24 | Andrew Corporation | Antenna structure and installation |
| CN200950586Y (en) * | 2006-09-12 | 2007-09-19 | 京信通信技术(广州)有限公司 | Beam forming meshwork with variable beam width |
| WO2012095056A2 (en) * | 2012-03-05 | 2012-07-19 | 华为技术有限公司 | Antenna system |
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2017
- 2017-03-22 CN CN201710173939.1A patent/CN108631070B/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032922A (en) * | 1976-01-09 | 1977-06-28 | The United States Of America As Represented By The Secretary Of The Navy | Multibeam adaptive array |
| WO2004044610A1 (en) * | 2002-11-13 | 2004-05-27 | Raytheon Company | Antenna configurations for reduced radar complexity |
| CN102856667A (en) * | 2012-09-06 | 2013-01-02 | 上海瀚讯无线技术有限公司 | Multi-beam antenna system |
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| WO2018171600A1 (en) | 2018-09-27 |
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