Green energy-saving antenna based on beam switching

Abstract

The invention provides a green energy-saving antenna based on beam switching, which comprises a first antenna, a second antenna, a third antenna and a fourth antenna, a feeder line of the second antenna is connected to a second output end of the power divider; a feeder line of the third antenna is connected to a third output end of the power divider; a feeder line at one end of the antenna connector is provided with a second switch joint, and the other end of the antenna connector is used for being electrically connected with an RRU of any sector of a base station antenna; the first switch joint and the second switch joint are controlled to be connected to the two ends of the first switch path respectively, so that the antenna is in a directional antenna working mode; and controlling the first switch joint and the second switch joint to be respectively connected to the first output end and the input end of the power divider, so that the antenna is in an omnidirectional antenna working mode. Therefore, the antenna can be switched between the directional antenna working mode and the omnidirectional antenna working mode, and the antenna can be controlled to switch the corresponding working mode according to the idle and busy periods, so that the energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of base station communication, and in particular to a green energy-saving antenna based on beam switching. Background Art

[0002] In the existing digital cellular mobile communication system, a base station usually uses three sectors for coverage. This coverage needs to be guaranteed 24 hours a day, which consumes a lot of energy. Moreover, when a sector fails, whether it is troubleshooting, maintenance or emergency communication, the coverage of the sector will be affected or even disconnected during that period, causing customer complaints.

[0003] Therefore, there is an urgent need for an antenna that can solve the problems of the prior art. Summary of the invention

[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide a green energy-saving antenna based on beam switching, which is used to switch the antenna between a directional antenna working mode and an omnidirectional antenna working mode, and can control the antenna to switch the corresponding working mode according to busy and idle periods to reduce energy consumption; at the same time, it is adaptable to emergency measures in the event of communication failures to avoid affecting the user's communication experience.

[0005] In order to achieve the above object, the present invention provides a green energy-saving antenna based on beam switching, comprising:

[0006] A first antenna, whose feeder is provided with a first switch joint, wherein the first switch joint can be switchably connected to a first switch path or a first output end of a power divider;

[0007] A second antenna, whose feeder is connected to the second output end of the power divider;

[0008] A third antenna, whose feeder is connected to the third output terminal of the power divider;

[0009] An antenna connector, a feeder at one end of which is provided with a second switch joint, the second switch joint can be switchably connected to the other end of the first switch path or the input end of the power divider; and the other end of the antenna connector is used to be electrically connected to the RRU of any sector of the base station antenna;

[0010] Among them, in the first time period, the first switch joint and the second switch joint are controlled to be connected to the two ends of the first switch path respectively, and the first antenna works to make the green energy-saving antenna in a directional antenna working mode; in the second time period, the first switch joint and the second switch joint are controlled to be connected to the first output end and the input end of the power divider respectively, and the first antenna, the second antenna and the third antenna work to make the green energy-saving antenna in an omnidirectional antenna working mode.

[0011] Optionally, the power divider is a one-to-three power divider.

[0012] Optionally, the first time period and the second time period are relatively busy and idle time periods in a day.

[0013] Optionally, the first switch path is composed of a first fixed switch node, a second fixed switch node, and a feeder connected between the first fixed switch node and the second fixed switch node, the first switch joint can be switched to be electrically connected to the first fixed switch node, and the second switch joint can be switched to be electrically connected to the second fixed switch node.

[0014] Optionally, the first antenna includes a first antenna submodule, a second antenna submodule and a switchable switch group, and the switchable switch group can be switched into a first conductive state or a second conductive state; wherein, in the first conductive state, the first antenna submodule is conductive with the first switch joint via the switchable switch group; in the second conductive state, the first antenna submodule and the second antenna submodule are conductive with the first switch joint together via the switchable switch group.

[0015] Optionally, the switchable switch group includes a third switch joint, a second switch path, a third switch path and a fourth switch joint, the third switch joint is connected to the feeder of the first antenna submodule, the fourth switch joint is conductive with the first switch joint, the feeder of the second antenna submodule is connected to the third switch path, the third switch joint and the fourth switch joint are respectively switched to be connected to the two ends of the second switch path so that the switchable switch group enters the first conductive state; the third switch joint and the fourth switch joint are respectively switched to be connected to the two ends of the third switch path so that the switchable switch group enters the second conductive state.

[0016] Optionally, the second switch path is composed of a third fixed switch node, a fourth fixed switch node, and a feeder connected between the third fixed switch node and the fourth fixed switch node; the third switch path is composed of a fifth fixed switch node, a sixth fixed switch node, and a feeder connected between the fifth fixed switch node and the sixth fixed switch node, and the feeder of the second antenna submodule is connected to the feeder between the fifth fixed switch node and the sixth fixed switch node.

[0017] Optionally, the fourth switch joint is connected to the first switch joint via a connector.

[0018] The green energy-saving antenna based on beam switching described in the present invention can realize the conversion of the antenna between a directional antenna working mode and an omnidirectional antenna working mode by switching the switch matrix inside the antenna; after replacing a sector antenna of an existing base station with the green energy-saving antenna based on beam switching, the different working modes of the green energy-saving antenna are switched between "busy time" and "idle time", which can effectively reduce the energy consumption of the base station; and when a communication failure occurs in a sector of the base station (not the replaced sector), the directional coverage mode of the base station is switched to the omnidirectional coverage mode through the green energy-saving antenna, which can solve the crisis of communication interruption of the sector in a very short time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a directional antenna working mode of the green energy-saving antenna based on beam switching provided in the first embodiment of the present invention;

[0020] Figure 2 A schematic diagram of an omnidirectional antenna working mode of the green energy-saving antenna based on beam switching provided in the first embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a directional antenna working mode of the green energy-saving antenna based on beam switching provided in the second embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the internal switch state of the first antenna of the green energy-saving antenna based on beam switching provided in the directional antenna working mode according to the second embodiment of the present invention;

[0023] Figure 5 A schematic diagram of an omnidirectional antenna working mode of the green energy-saving antenna based on beam switching provided in the second embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the internal switch state of the first antenna of the green energy-saving antenna based on beam switching provided in the omnidirectional antenna working mode according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] It should be noted that references to "one embodiment", "embodiment", "example embodiment", etc. in this specification refer to the embodiment described, which may include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not refer to the same embodiment. Furthermore, when describing specific features, structures or characteristics in conjunction with an embodiment, whether or not there is an explicit description, it has been shown that it is within the knowledge of those skilled in the art to combine such features, structures or characteristics into other embodiments.

[0027] In addition, certain words are used in the specification and subsequent claims to refer to specific components or parts. Those with ordinary knowledge in the relevant field should understand that manufacturers can use different nouns or terms to refer to the same component or part. This specification and subsequent claims do not use differences in names as a way to distinguish components or parts, but use differences in the functions of components or parts as the criteria for distinction. "Including" and "including" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connected" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0028] Embodiment 1

[0029] Figure 1~Figure 2 The green energy-saving antenna based on beam switching provided by the first embodiment of the present invention is shown, which can be specifically applied to replace any sector antenna in the three sectors of the existing base station, so as to meet the requirements of energy saving and emergency response to faults by using the directional antenna working mode and omnidirectional antenna working mode switchable by the green energy-saving antenna based on beam switching of this embodiment. The green energy-saving antenna includes a first antenna 10, a second antenna 20, a third antenna 30 and an antenna connector 40, wherein:

[0030] The feeder of the first antenna 10 is provided with a first switch joint, and the first switch joint can be switchably connected to a first switch path or a first output end of a power divider; the feeder of the second antenna 20 is connected to the second output end of the power divider; the feeder of the third antenna 30 is connected to the third output end of the power divider; the feeder at one end of the antenna connector 40 is provided with a second switch joint, and the second switch joint can be switchably connected to the other end of the first switch path or the input end of the power divider; and the other end of the antenna connector 40 is used to be electrically connected to the RRU (Remote Radio Unit) of any sector of the base station antenna; furthermore, in the first time period, the first switch joint and the second switch joint are controlled to be respectively connected to the two ends of the first switch path, and the first antenna 10 works so that the green energy-saving antenna is in a directional antenna working mode; in the second time period, the first switch joint and the second switch joint are controlled to be respectively connected to the first output end and the input end of the power divider, and the first antenna 10, the second antenna 20 and the third antenna 30 work so that the green energy-saving antenna is in an omnidirectional antenna working mode.

[0031] This embodiment can make the corresponding antenna in the green energy-saving antenna work by changing the switch state of the first switch joint and the second switch joint, so as to be in the corresponding antenna working mode. Preferably, the first switch path of this embodiment is composed of the first fixed switch node Y2, the second fixed switch node Y3 and the feeder connected between the first fixed switch node Y2 and the second fixed switch node Y3, the first switch joint Y1 can be switched to be electrically connected to the first fixed switch node Y2, and the second switch joint Y4 can be switched to be electrically connected to the second fixed switch node Y3.

[0032] See also Figure 1When the first switch joint Y1 is switched to be connected to one end Y2 of the first switch path and the second switch joint Y4 is also switched to be connected to the other end Y3 of the first switch path, Y1-Y2-Y3-Y4 is turned on. At this time, the feeder of the first antenna 10 is connected to the antenna connector 40 through Y1-Y2-Y3-Y4, while the second antenna 20 and the third antenna 30 are disconnected; and the antenna connector 40 is connected to the RRU of any sector antenna of the base station antenna. At this time, the first antenna 10 replaces the original sector antenna to work in the directional antenna working mode, and the first antenna 10 maintains the same coverage range as the antenna of the sector of the original base station, that is, at this time, although Although the entire green energy-saving antenna is connected to the RRU of one of the sector antennas of the base station antenna through the antenna connector 40, the switching state of the first switch joint Y1 and the second switch joint Y4 makes only the first antenna 10 work, while the second antenna 20 and the third antenna 30 are in a disconnected state. Then the first antenna 10 is equivalent to replacing the original sector antenna of the base station antenna to work. For example, the base station includes RRU sector 1, RRU sector 2 and RRU sector 3. The green energy-saving antenna based on beam switching in this embodiment is connected to the RRU sector 1 through the antenna connector 40. At this time, the RRUs of the three sectors of the base station remain in a working state.

[0033] See also Figure 2 When the first switch joint Y1 is switched to be connected to the first output end G2 of the power divider and the second switch joint Y4 is switched to be connected to the input end G1 of the power divider, the power divider of this embodiment is preferably a one-to-three power divider; at this time, the input end G1 on the power divider is connected to the antenna connector 40, and the three output ends on the power divider are respectively connected to the first antenna 10, the second antenna 20 and the third antenna 30, that is, the first antenna 10, the second antenna 20 and the third antenna 30 are all connected to the feeding path connected to the RRU of one of the sector antennas of the base station antenna, then the first antenna 10, the second antenna 20 and the third antenna 30 work together in the omnidirectional antenna working mode, at this time, the RRU sector 1 of the three sectors of the base station is in the working state, and the RRU sector 2 and the RRU sector 3 are in the closed state.

[0034] In this embodiment, a first time period and a second time period are set, and two different time periods are used as working periods for switching the antenna working mode of the green energy-saving antenna. When entering from one time period to another time period, the green energy-saving antenna is controlled to enter the corresponding antenna working mode; specifically, when entering from the first time period to the second time period at this time, the green energy-saving antenna is switched from the directional antenna working mode to the omnidirectional antenna working mode; when entering from the second time period to the first time period at this time, the green energy-saving antenna is switched from the omnidirectional antenna working mode to the directional antenna working mode; the specific mode switching is achieved by switching the switch states of the first switch joint Y1 and the second switch joint Y4 as mentioned above, which will not be repeated here.

[0035] The first time period and the second time period are specifically the relative busy and idle time periods in a day. The division of "idle" and "busy" can be determined based on the local geographical conditions and the user's communication needs; for example, in an optional application mode, 8 am to 12 pm is set as the first time period, and 0 am to 8 am is set as the second time period. Therefore, the sector antenna corresponding to the base station is replaced by the green energy-saving antenna, and the working state is the directional antenna working mode in the "busy time" and the omnidirectional antenna working mode in the "idle time"; that is, in the "busy time" with a large volume of cell traffic, the green energy-saving antenna replaces the sector antenna working mode with directional antenna coverage, and the RRUs of the three sectors work at the same time; in the "idle time" from midnight to early morning, the working mode of the green energy-saving antenna based on beam switching is the omnidirectional antenna working mode, and the total energy consumption of the base station is 3*16*P+8*P=56P, where P is the unit of measurement for antenna energy consumption; and if the original base station antenna is in the 24-hour 3-sector directional antenna working mode, the total energy consumption of the base station is 3*24*P=72P. Therefore, after replacing a sector antenna of an existing base station antenna with the green energy-saving antenna based on beam switching provided in this embodiment, its energy consumption can be reduced by 22.2% by switching between the two working states of "busy time" and "idle time", that is, this embodiment can effectively reduce the energy consumption of the base station.

[0036] In an application scenario, after a sector antenna of a base station is replaced with a green energy-saving antenna based on beam switching of this embodiment, when communication failure occurs in the other two sectors, it is necessary to conduct troubleshooting, maintenance, or take other emergency measures to restore the coverage and communication quality of the cell as soon as possible, and the cell faces the problem of being unable to communicate during this troubleshooting period; in this regard, the green energy-saving antenna can be activated as an omnidirectional antenna working mode as an emergency plan, and the faulty cell and another cell can be shut down, so that there will be no long-term cell communication interruption; even in the "busy hour" of this embodiment, if communication failure occurs in the other two sectors, the green energy-saving antenna can be switched to the omnidirectional antenna working mode, and the faulty sector and another sector can be shut down, so that there will be no long-term cell communication interruption; this time can be used for troubleshooting and maintenance. After the fault is eliminated, the three-sector directional antenna working mode of the cell can be restored to meet the user needs during the "busy hour".

[0037] Preferably, the three sector antennas of the base station can be replaced with the green energy-saving antenna based on beam switching of this embodiment. When the three sectors are required to be in directional antenna working mode, the three green energy-saving antennas are switched to the directional antenna working mode through their switch joints, for example Figure 1 The switch state is shown; and if the base station antenna needs to be switched to the omnidirectional antenna working mode, one of the beam switchable antennas can be selected and switched to the omnidirectional antenna working mode through its switch joint.

[0038] Embodiment 2

[0039] Figure 3 and Figure 5 The green energy-saving antenna based on beam switching provided by the second embodiment of the present invention includes a first antenna, a second antenna 20, a third antenna 30 and an antenna connector 40, wherein:

[0040] The feeder of the first antenna is provided with a first switch joint, and the first switch joint can be switchably connected to the first switch path or the first output end of the power divider; the feeder of the second antenna 20 is connected to the second output end of the power divider; the feeder of the third antenna 30 is connected to the third output end of the power divider; the feeder at one end of the antenna connector 40 is provided with a second switch joint, and the second switch joint can be switchably connected to the other end of the first switch path or the input end of the power divider; and the other end of the antenna connector 40 is used to electrically connect to the RRU of any sector of the base station antenna; then, in the first time period, the first switch joint and the second switch joint are controlled to be respectively connected to the two ends of the first switch path, and the first antenna works so that the green energy-saving antenna is in a directional antenna working mode; in the second time period, the first switch joint and the second switch joint are controlled to be respectively connected to the first output end and the input end of the power divider, and the first antenna, the second antenna 20 and the third antenna 30 work so that the green energy-saving antenna is in an omnidirectional antenna working mode. Figure 3 The directional antenna working mode of the green energy-saving antenna based on beam switching of this embodiment is shown. Figure 5 The omnidirectional antenna working mode of the green energy-saving antenna based on beam switching of this embodiment is shown. The switching method of the directional antenna working mode and the omnidirectional antenna working mode of this embodiment is the same as that of the first embodiment above, and will not be repeated here.

[0041] Different from the first embodiment, the first antenna of this embodiment includes a first antenna submodule 11, a second antenna submodule 12 and a switchable switch group, and the switchable switch group can be switched into a first conduction state or a second conduction state; wherein, in the first conduction state, the first antenna submodule 11 is connected to the first switch joint Y1 via the switchable switch group; and in the second conduction state, the first antenna submodule 11 and the second antenna submodule 12 are connected to the first switch joint Y1 via the switchable switch group. That is, when the green energy-saving antenna is in the directional antenna working mode, it is only connected to the antenna joint 40 through the first antenna submodule 11; and when it is switched to the omnidirectional antenna working mode, the first antenna submodule 11 and the second antenna submodule 12 are connected to the antenna joint 40 together with the second antenna 20 and the third antenna 30 to work together; the purpose is to ensure that the antenna coverage effect will not be reduced too much when the base station is switched to the omnidirectional coverage mode or the directional coverage mode.

[0042] See also Figure 4 and Figure 6 The switchable switch group specifically includes a third switch joint A, a second switch path 101, a third switch path 102 and a fourth switch joint B. The third switch joint A is connected to the feeder of the first antenna submodule 11, and the fourth switch joint B is connected to the first switch joint Y1. In this embodiment, the fourth switch joint B is connected to the first switch joint Y1 through a connector 13; the feeder of the second antenna submodule 12 is connected to the third switch path 102, and the third switch joint A and the fourth switch joint B are respectively switched to connect to the two ends of the second switch path 101, so that the switchable switch group enters the first conduction state, such as Figure 4 The third switch joint A and the fourth switch joint B are respectively switched to connect to the two ends of the third switch path 102, so that the switchable switch group enters the second conduction state, such as Figure 6 Specifically, the second switch path 101 is composed of a third fixed switch node D1, a fourth fixed switch node D2, and a feeder connected between the third fixed switch node D1 and the fourth fixed switch node D2; the third switch path 102 is composed of a fifth fixed switch node E1, a sixth fixed switch node E2, and a feeder connected between the fifth fixed switch node E1 and the sixth fixed switch node E2, and the feeder of the second antenna submodule 12 is connected to the feeder between the fifth fixed switch node E1 and the sixth fixed switch node E2.

[0043] See also Figure 3~4 In one embodiment, the third switch joint A of the first antenna submodule 11 is connected to D1, and the fourth switch joint B is connected to D2. At this time, only the first antenna submodule is connected to the first switch joint Y1, that is, only the first antenna submodule 11 works to maintain the performance equivalent to that of the original sector antenna of the antenna; at this time, the second antenna 20 and the third antenna 30 have a gain about 3dBi higher than that of the first antenna submodule 11, and the second antenna 20 and the third antenna 30 are respectively connected to the second output port and the third output port of a group of one-to-three power dividers including multiple switches; when the first switch joint Y1 is connected to Y2 and the second switch joint Y4 is connected to Y3, the green energy-saving antenna based on beam switching is in a directional working mode, at this time, only the first antenna submodule 11 of the green energy-saving antenna works, and the second antenna 20 and the third antenna 30 are in a disconnected state; when the green energy-saving antenna based on beam switching is in a directional antenna working mode, the RRUs of the three sectors of the base station all remain in a working state.

[0044] See also Figures 5 and 6In another embodiment, the third switch joint A of the first antenna submodule 11 is connected to E1, and the fourth switch joint B is connected to E2. The internal switch of the green energy-saving antenna based on beam switching is switched from Y1Y2 to Y1G2 and from Y4Y3 to Y4G1 at the same time. At this time, the second antenna 20 and the third antenna 30 are respectively connected to the second output port and the third output port of the one-to-three power divider including multiple switch groups. The first antenna submodule 11 and the second antenna submodule 12 are connected to the first output port G2 of the power divider together, and the input port G1 of the power divider is connected to the second switch joint Y4. The first antenna submodule 11, the second antenna submodule 12, the second antenna 20 and the third antenna 30 in the green energy-saving antenna based on beam switching work together and are in an omnidirectional antenna working mode; among the three sectors of the base station, the RRU sector 1 connected to the antenna connector 40 is in a working state, and the RRU sector 2 and the RRU sector 3 are in a closed state.

[0045] That is, by controlling the switching state of the switch matrix inside the green energy-saving antenna based on beam switching, the operation of each antenna in the antenna can be adjusted to enter the corresponding antenna operation mode.

[0046] In summary, the green energy-saving antenna based on beam switching described in the present invention can realize the conversion of the antenna between the directional antenna working mode and the omnidirectional antenna working mode by switching the internal switch matrix of the antenna; after replacing the antenna of a sector of the existing base station with the green energy-saving antenna based on beam switching, switching the different working modes of the green energy-saving antenna during "busy time" and "idle time" can effectively reduce the energy consumption of the base station; and when a communication failure occurs in a sector of the base station (not the replaced sector), the directional coverage mode of the base station is switched to the omnidirectional coverage mode through the green energy-saving antenna, which can solve the crisis of communication interruption of the sector in a very short time.

[0047] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A green energy-saving antenna based on beam switching, characterized in that: Included are: A first antenna, whose feeder is provided with a first switch joint, wherein the first switch joint can be switchably connected to a first switch path or a first output end of a power divider; A second antenna, whose feeder is connected to the second output end of the power divider; A third antenna, whose feeder is connected to the third output terminal of the power divider; An antenna connector, a feeder at one end of which is provided with a second switch joint, the second switch joint can be switchably connected to the other end of the first switch path or the input end of the power divider; and the other end of the antenna connector is used to be electrically connected to the RRU of any sector of the base station antenna; Wherein, in the first time period, the first switch joint and the second switch joint are controlled to be connected to the two ends of the first switch path respectively, and the first antenna works so that the green energy-saving antenna is in a directional antenna working mode; In the second time period, the first switch joint and the second switch joint are controlled to be connected to the first output end and the input end of the power divider respectively, and the first antenna, the second antenna and the third antenna work to put the green energy-saving antenna in an omnidirectional antenna working mode.

2. The green energy-saving antenna based on beam switching according to claim 1, characterized in that: The power divider is a one-to-three power divider.

3. The green energy-saving antenna based on beam switching according to claim 1, characterized in that: The first time period and the second time period are relatively busy and idle time periods in a day.

4. The green energy-saving antenna based on beam switching according to claim 1, characterized in that: The first switch path is composed of a first fixed switch node, a second fixed switch node, and a feeder connected between the first fixed switch node and the second fixed switch node. The first switch joint can be switched to be electrically connected to the first fixed switch node, and the second switch joint can be switched to be electrically connected to the second fixed switch node.

5. The green energy-saving antenna based on beam switching according to claim 1, characterized in that: The first antenna includes a first antenna submodule, a second antenna submodule and a switchable switch group, and the switchable switch group can be switched into a first conductive state or a second conductive state; wherein, in the first conductive state, the first antenna submodule is conductively connected to the first switch joint via the switchable switch group; in the second conductive state, the first antenna submodule and the second antenna submodule are conductively connected to the first switch joint via the switchable switch group.

6. The green energy-saving antenna based on beam switching according to claim 5, characterized in that: The switchable switch group includes a third switch joint, a second switch path, a third switch path and a fourth switch joint. The third switch joint is connected to the feeder of the first antenna submodule, the fourth switch joint is conductive with the first switch joint, the feeder of the second antenna submodule is connected to the third switch path, the third switch joint and the fourth switch joint are respectively switched to be connected to the two ends of the second switch path so that the switchable switch group enters the first conductive state; the third switch joint and the fourth switch joint are respectively switched to be connected to the two ends of the third switch path so that the switchable switch group enters the second conductive state.

7. The green energy-saving antenna based on beam switching according to claim 6, characterized in that: The second switch path is composed of a third fixed switch node, a fourth fixed switch node, and a feeder connected between the third fixed switch node and the fourth fixed switch node; the third switch path is composed of a fifth fixed switch node, a sixth fixed switch node, and a feeder connected between the fifth fixed switch node and the sixth fixed switch node, and the feeder of the second antenna submodule is connected to the feeder between the fifth fixed switch node and the sixth fixed switch node.

8. The green energy-saving antenna based on beam switching according to claim 6, characterized in that: The fourth switch joint is connected to the first switch joint via a connector.

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