Antenna, antenna beam reconstruction device and electronic equipment

Abstract

The invention discloses an antenna, an antenna beam reconstruction device and electronic equipment. The antenna comprises a first printed circuit board and a second printed circuit board which are in cross connection, and the first printed circuit board is used for receiving a control signal sent by a control signal source; the second printed circuit board is provided with an active oscillator, a director and a first reflector, the director is used for influencing the position of a plane where a radiation beam generated by the active oscillator is located, and the first reflector is used for influencing the radiation direction of the radiation beam generated by the active oscillator on the plane; corresponding switches are arranged in the directors, and the switches corresponding to the directors are used for controlling the working states of the corresponding directors based on the control signals; a corresponding switch is arranged in the first reflector, and the switch corresponding to the first reflector is used for controlling the working state of the corresponding first reflector based on the control signal. According to the invention, the technical problems that the number of switchable beams is small and only beam reconstruction in a one-dimensional direction can be realized when beam reconstruction is carried out on an antenna in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to an antenna, an antenna beam reconstruction device and an electronic device. Background Art

[0002] Currently, the number of reconstructed beams of the antenna is small, and only reconstruction in the direction of one-dimensional space can be achieved. In addition, when the beam is switched, the maximum gain direction and the gain peak value do not change significantly, the reconfiguration effect is poor, and it is difficult to maintain a wide working bandwidth during beam reconstruction.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0004] The embodiments of the present invention provide an antenna, an antenna beam reconstruction device and an electronic device to at least solve the technical problem that the number of switchable beams is small and the beam reconstruction can only be achieved in one-dimensional direction when the antenna performs beam reconstruction.

[0005] According to one aspect of an embodiment of the present invention, an antenna is provided, comprising: a first printed circuit board and a second printed circuit board that are cross-connected, the first printed circuit board being used to receive a control signal emitted by a control signal source; the second printed circuit board being provided with an active vibrator, a director and a first reflector, wherein the active vibrator is used to receive a transmission signal emitted by a transmission source and convert the transmission signal into a radiation beam, the director is used to affect the planar position of the radiation beam generated by the active vibrator, and the first reflector is used to affect the radiation direction of the radiation beam generated by the active vibrator on the plane; a corresponding switch is provided in the director, and the switch corresponding to the director is used to control the working state of the corresponding director based on the control signal; a corresponding switch is provided in the first reflector, and the switch corresponding to the first reflector is used to control the working state of the corresponding first reflector based on the control signal.

[0006] Optionally, the above-mentioned antenna also includes one or more third printed circuit boards, wherein the third printed circuit boards are respectively connected to the first printed circuit board and the second printed circuit board, and the third printed circuit board is not parallel to the first printed circuit board and the second printed circuit board, wherein the third printed circuit board is provided with a second reflector, and the second reflector is used to affect the radiation direction of the radiation beam generated by the active vibrator on the plane alone or in combination with the first reflector; the second reflector is provided with a corresponding switch, and the switch corresponding to the second reflector is used to control the working state of the corresponding second reflector based on the control signal.

[0007] Optionally, the active oscillator is a butterfly dipole.

[0008] Optionally, the first printed circuit board is vertically inserted into the second printed circuit board.

[0009] Optionally, the director includes an upper director and a lower director, wherein the upper director is used to influence the plane position of the radiation beam generated by the active vibrator to move toward a first preset direction, and the lower director is used to influence the plane position of the radiation beam generated by the active vibrator to move toward a second preset direction, wherein the first preset direction and the second preset direction are opposite directions.

[0010] Optionally, the switch is a PIN diode.

[0011] Optionally, the second printed circuit board includes one or more first reflectors.

[0012] Optionally, the second printed circuit board includes two symmetrically arranged first reflectors, which are used to influence the radiation direction of the radiation beam generated by the active oscillator on the plane to move toward the direction of the first reflector in a working state, wherein the two symmetrically arranged first reflectors are not in a working state at the same time.

[0013] According to another aspect of an embodiment of the present invention, an antenna beam reconstruction device is also provided, which uses any of the above-mentioned antennas to perform beam reconstruction, including: a control signal source, used to send a control signal; an adjustment module, used to adjust the corresponding switch states of the director and the reflector based on the control signal; and a reconstruction module, used to reconstruct the radiation beam generated by the active vibrator through the reflector and the director in the turned-on state to obtain a target beam.

[0014] According to another aspect of the embodiments of the present invention, there is provided an electronic device using any one of the above antennas.

[0015] In an embodiment of the present invention, the above-mentioned antenna is used to perform beam reconstruction, and the antenna includes a first printed circuit board and a second printed circuit board that are cross-connected, the first printed circuit board is used to receive a control signal sent by a control signal source; the second printed circuit board is provided with an active vibrator, a director and a first reflector, wherein the active vibrator is used to receive a transmission signal sent by a transmission source and convert the transmission signal into a radiation beam, the director is used to affect the plane position of the radiation beam generated by the active vibrator, and the first reflector is used to affect the radiation direction of the radiation beam generated by the active vibrator on the plane; a corresponding switch is provided in the director, and the switch corresponding to the director is used to control the working state of the corresponding director based on the control signal; a corresponding switch is provided in the first reflector, and the switch corresponding to the first reflector is used to control the working state of the corresponding first reflector based on the control signal, thereby achieving the purpose of realizing multiple radiation beam reconstructions, thereby achieving a transmission effect of improving the propagation performance of the antenna, and further solving the technical problem that the number of switchable beams is small and the beam reconstruction can only be realized in one-dimensional direction when the antenna performs beam reconstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a schematic structural diagram of an antenna provided according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of a first printed circuit board in an antenna provided according to an optional embodiment of the present invention;

[0019] Figure 3 is a schematic diagram of a second printed circuit board in an antenna provided according to an optional embodiment of the present invention;

[0020] Figure 4 is a structural schematic diagram of an antenna provided according to an optional embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of a third printed circuit board in an antenna provided according to an optional embodiment of the present invention;

[0022] Figure 6 is an equivalent circuit diagram of a PIN diode in an antenna provided according to an optional embodiment of the present invention;

[0023] Figure 7 is a diagram of actually measured bandwidths of antennas in different working states provided by an optional embodiment of the present invention;

[0024] Figure 8 is a schematic diagram of simulated beam reconstruction of a reflector in an antenna according to an optional embodiment of the present invention;

[0025] Fig. 9 is a schematic diagram of simulated beam reconstruction of a director in an antenna according to an optional embodiment of the present invention;

[0026] Fig.10 is a schematic diagram of simulated beam reconstruction in which a reflector and a director in an antenna work simultaneously according to an optional embodiment of the present invention;

[0027] Fig.11 is a schematic diagram of measured beam reconstruction in an antenna provided in an optional embodiment of the present invention;

[0028] Fig.12 is a flow chart of a method for beam reconfiguration using the above antenna provided according to an optional embodiment of the present invention;

[0029] Fig.13 It is a structural block diagram of an antenna beam reconstruction device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] First, some nouns or terms that appear in the description of the embodiments of the present application are subject to the following explanations:

[0033] Antenna beamforming is a technique for manipulating the direction in which an antenna radiates or receives energy by controlling the phase and amplitude of each element in the antenna array. Beamforming is very important in wireless communications, radar, sonar, and other applications that require directional transmission or reception of signals.

[0034] Beamforming technology can adjust the antenna's radiation pattern according to the desired signal transmission or reception mode, of which directional radiation and omnidirectional radiation are two common radiation patterns:

[0035] Directional radiation means that the antenna focuses the signal energy mainly in a specific direction, rather than radiating uniformly in all directions. This radiation pattern is often used to improve the coverage and strength of the signal in a specific direction while reducing interference and signal leakage in other directions.

[0036] Omnidirectional radiation means that the antenna radiates signal energy evenly in all directions on the horizontal plane. This radiation pattern is suitable for scenarios where signal coverage needs to be provided in a wider area.

[0037] A reflector is a passive component used to enhance the directivity of an antenna by reflecting radio waves to concentrate the radiated energy in a specific direction.

[0038] Currently, there are relatively few reconstructed beams of antennas, and most of them can only realize reconstruction in the direction of one-dimensional space. In addition, when the beam is switched, the maximum gain direction and gain peak value do not change significantly, the reconstructible effect is poor, and it is difficult to maintain a wide working bandwidth when the beam is reconstructed. In view of the above technical problems, an embodiment of the present invention provides an embodiment of an antenna.

[0039] Figure 1 is a schematic diagram of the structure of an antenna provided according to an embodiment of the present invention, such as Figure 1 As shown, the antenna includes: a first printed circuit board and a second printed circuit board that are cross-connected. The first printed circuit board and the second printed circuit board can be connected in a Figure 1 Medium form cross connection.

[0040] Optionally, the first printed circuit board is vertically inserted into the second printed circuit board. Vertical insertion facilitates subsequent insertion of the third printed circuit board, thereby achieving better beam reconstruction.

[0041] Figure 2 FIG. 1 is a schematic diagram of a first printed circuit board in an antenna according to an optional embodiment of the present invention. Figure 2 As shown, the first printed board can be set as a circular printed circuit board as the base in the antenna. Because the circle is more space-saving than the square. The first printed circuit board can be connected to the control signal source as a base, and can be used to receive the control signal sent by the control signal source. The control signal can be used to control the switch state of the reflector and director on other circuit boards (such as the second printed circuit board and the third printed circuit board) to achieve the effect of beam reconstruction in different directions. For example, a test board can be designed to serve as a control signal source to send out a control signal. For example, each dip switch on the test board can be set to be connected to the switch of different reflectors and directors, and the state of the switch can be directly controlled. The on and off of the switch of the reflector and director in the antenna can be controlled by controlling the test board, thereby realizing beam reconstruction in different directions, and achieving the technical effect of fast beam switching.

[0042] Figure 3 is a schematic diagram of a second printed circuit board in an antenna according to an optional embodiment of the present invention, such as Figure 3 As shown, the second printed circuit board is provided with an active vibrator, a director and a first reflector, wherein the active vibrator is used to receive a transmission signal emitted by a transmission source and convert the transmission signal into a radiation beam, wherein the transmission signal can be a current, a radio frequency signal, etc. The director is used to affect the plane position of the radiation beam generated by the active vibrator, that is, the plane position corresponding to the maximum radiation gain, and the first reflector is used to affect the radiation direction of the radiation beam generated by the active vibrator on the plane, that is, the radiation direction of the maximum radiation gain on the plane.

[0043] An active antenna is an antenna system that includes active elements. Among them, the active antenna can take a variety of shapes, mainly depending on the application requirements and frequency range. For example, a dipole, which consists of two parallel metal rods, is usually used for shortwave and ultra-shortwave communications; a monopole, which consists of a vertical metal rod and a ground plane, is often used in mobile communication base stations, etc. In a specific implementation, a butterfly dipole can be used as an active antenna. The butterfly dipole is a dipole antenna with a special shape. Compared with traditional linear dipoles, butterfly dipoles are usually smaller in size and occupy less space. They are suitable for use in space-constrained environments, and butterfly dipoles can operate in a wider frequency range while maintaining relatively stable performance, and can provide a certain degree of directivity, which is very useful for reducing interference and improving signal selectivity. Therefore, using a butterfly dipole as an active antenna can maintain a wider working bandwidth when the antenna is reconstructing the beam.

[0044] The second printed circuit board includes a first reflector and a director. A reflector is a parasitic structure used in an antenna. Its function is to reflect and focus the radio waves transmitted or received by the antenna array in the desired direction. Its main purpose is to enhance the directivity of the antenna. By reflecting radio waves, it can focus the signal energy in a specific direction, thereby increasing the gain of the antenna. A director is also a parasitic structure used in an antenna. The director enhances the signal strength in a specific direction by interacting with the main antenna element, while suppressing signals in other directions. This helps to improve the gain and directivity of the antenna.

[0045] A corresponding switch is provided in the director, and the switch corresponding to the director is used to control the working state of the corresponding director based on the control signal. A corresponding switch is provided in the first reflector, and the switch corresponding to the first reflector is used to control the working state of the corresponding first reflector based on the control signal. The director and the first reflector can be controlled based on the control signal obtained by the first printed circuit board. For example, the control signal source uses a test board, which includes many dip switches, each of which controls a reflector or a director, and the working state of the reflector and the director is controlled by controlling the dip switches.

[0046] Optionally, the second printed circuit board includes one or more first reflectors.

[0047] One or more first reflectors can be set in the second printed circuit board, and the specific ones can be selected according to the needs for beam reconstruction in actual conditions. The more first reflectors there are, the more radiation directions of beam reconstruction can be formed. Setting multiple first reflectors can provide more sophisticated beam control capabilities. By independently controlling the on-off state of the PIN diode on each reflector, the reflection of the radiation beam in different directions can be adjusted, thereby realizing multi-angle and multi-position beam reconstruction. For example, when different reflectors are in working state, the direction of the sky beam reconstruction can point to different angles in the horizontal plane. By controlling different combinations of first reflectors, the antenna can realize multi-directional beam switching in three-dimensional space, improving its adaptability and flexibility in different environments.

[0048] The second printed circuit board includes two symmetrically arranged first reflectors, which are used to influence the radiation direction of the radiation beam generated by the active oscillator on the plane to move toward the direction of the first reflector in the working state, wherein the two symmetrically arranged first reflectors are not in the working state at the same time. Figure 4 As shown, the second printed circuit board includes two symmetrically arranged first reflectors. When different first reflectors are in working state, the radiation beam can be formed in different radiation directions. However, usually two first reflectors in a symmetrical state will not work at the same time, because the effects on the radiation beam will cancel each other out. In actual situations, multiple first reflectors in symmetrical positions can be set to form more radiation directions in the radiation broadcast. The symmetrically arranged first reflectors can help the antenna produce a more balanced and symmetrical radiation pattern in the horizontal direction. This means that the antenna will have the same radiation characteristics in the opposite direction of 180°, so that the beam has good coverage in all directions. And the reflector can effectively increase the gain of the antenna by reflecting and guiding electromagnetic waves. Under the symmetrical configuration, this gain increase can be more evenly distributed in the radiation pattern of the antenna, thereby optimizing the signal transmission efficiency. The director includes an upper director and a lower director, wherein the upper director is used to affect the plane position of the radiation beam generated by the active vibrator, that is, to affect the plane position of the beam corresponding to the maximum radiation gain to move toward a first preset direction, and the lower director is used to affect the plane position of the radiation beam generated by the active vibrator, that is, to affect the plane position of the beam corresponding to the maximum radiation gain to move toward a second preset direction, wherein the first preset direction is opposite to the second preset direction. Figure 4As shown, the first reflector (i.e., reflector 1 and reflector 2) is arranged on the left and right sides of the second printed circuit board, and the director (i.e., the upper director and the lower director) is arranged at the upper and lower positions of the second printed circuit board. A three-dimensional coordinate system is established with the plane where the first printed circuit board is located, the first printed circuit board is the xy plane, and the z axis is perpendicular to the first printed circuit board. The second printed circuit board includes a director and a reflector, wherein the first reflector can affect the reconstruction of the beam in the horizontal plane, i.e., the xy plane, and the director can affect the reconstruction of the beam in the z-axis direction. Among them, the first preset direction corresponding to the upper director can be the positive direction of the z-axis, and the second preset direction corresponding to the lower director can be the negative direction of the z-axis. The second printed circuit board is vertically inserted into the first printed circuit board, so that the influence of the upper director and the lower director on the beam reconstruction can be directly above and directly below, without affecting the beam reconstruction in the horizontal plane direction. In this way, when the beam reconstruction is performed later, the beam reconstruction in different directions can be performed more accurately by controlling the working state of the director and the reflector.

[0049] The antenna realizes beam reconstruction in the pitch plane by loading folded parasitic structures (directors) on the top and bottom of the active oscillator, and sets switches therein to control the working state of the parasitic structures, thereby realizing various forms of beam reconstruction. The purpose of realizing multiple radiation beam reconstructions is achieved, thereby achieving the transmission effect of improving the propagation performance of the antenna, and further solving the technical problem that the number of switchable beams is small and the beam reconstruction in only one-dimensional direction can be realized when the antenna performs beam reconstruction.

[0050] The antenna further includes one or more third printed circuit boards, wherein the third printed circuit boards are respectively connected to the first printed circuit board and the second printed circuit board. Figure 4 is a schematic diagram of the structure of an antenna provided according to an optional embodiment of the present invention, such as Figure 4 The antenna shown includes three printed circuit boards (PCBs). Optionally, the three printed circuit boards can be PCBs with a thickness of 0.8 mm and a material of FR-4. Figure 4 The first printed circuit board, the second printed circuit board, and the third printed circuit board are cross-connected to achieve beam reconstruction in three-dimensional space. Figure 5 is a schematic diagram of a third printed circuit board in an antenna according to an optional embodiment of the present invention, such as Figure 5As shown, the third printed circuit board is provided with a second reflector, namely, reflector 3 and reflector 4. The second reflector is used to affect the radiation direction of the radiation beam generated by the active oscillator on the plane alone or in combination with the first reflector; a corresponding switch is provided in the second reflector, and the switch corresponding to the second reflector is used to control the working state of the corresponding second reflector based on the control signal. Similarly, the working state of the second reflector can also be controlled by a test board connected to the first printed circuit board. The second reflector on the third printed board is controlled by toggling the dip switch on the test board.

[0051] The third printed circuit board includes reflectors, which can realize beam reconstruction in more directions on the horizontal plane. That is, when the second printed circuit board and the third printed circuit board are vertically cross-inserted into the first printed circuit board, the two reflectors on the second printed circuit board and the two reflectors on the third printed circuit board correspond to different directions respectively. Through the arrangement and combination of different reflectors, beam reconstruction in multiple directions can be realized. The more third printed circuit boards are set in the antenna, that is, the more reflectors are in the antenna, the more beam reconstructions can be realized, and the number of third printed circuit boards can be set according to actual conditions.

[0052] As an optional embodiment, the switch may be a PIN diode, wherein the positive electrode of the PIN diode is connected to the first printed circuit board via a DC signal control line, and the negative electrode of the PIN diode is connected to the first printed circuit board via a DC signal control line. Figure 6 is an equivalent circuit diagram of a PIN diode in an antenna according to an optional embodiment of the present invention. When the PIN diode is biased, there are lead inductance and parasitic capacitance, which can be simply equivalent to the following: Figure 6 When the PIN diode is turned on, the parasitic microstrip line is equivalent to a series LC loop. By adjusting the matching circuit of the reserved PIN diode, the bandwidth of the smart antenna can cover the WIFI 5G frequency band when switching states.

[0053] The first printed circuit board is connected to the signal control source, and then a bias voltage is provided to the PIN diode through the DC signal control line. At this time, the PIN diode is turned on, and the reflector or director corresponding to the PIN diode works. The electrical length of the parasitic microstrip line where it is located increases, which reflects or guides the beam of the active oscillator. When no bias voltage is provided, the PIN diode is disconnected, and the effective electrical length of the parasitic microstrip line where it is located is small, which has no obvious effect on the beam of the active oscillator. Among them, the electrical length is a concept that describes the relative length of a transmission line or antenna element relative to the wavelength of an electromagnetic wave. The electrical length is a dimensionless quantity, usually expressed as a fraction or multiple of the wavelength. When all PIN diodes are in the disconnected state, the reflector and director are in the closed state, and the active oscillator radiates omnidirectionally in the horizontal plane. By switching the working state of the PIN diode, the effect of each parasitic unit (reflector or director) on the active oscillator can be controlled, and the entire antenna can achieve a variety of radiation beams.

[0054] Figure 7 is a diagram of the measured bandwidth of the antenna in different working states provided by an optional embodiment of the present invention, such as Figure 7 As shown, the horizontal axis Freq represents frequency, and the vertical axis VSWR represents voltage standing wave ratio. Under different working conditions, that is, when different reflectors and directors are working, the corresponding measured bandwidths, where the measured bandwidth of the antenna refers to the frequency range in which the antenna can maintain its performance indicators within an acceptable range under a specific working condition. Usually, the measured bandwidth is determined from the frequency range where the VSWR is below a certain threshold. The lower the VSWR, the better the match between the antenna and the transmission line, and the higher the energy transmission efficiency.

[0055] The antenna loads multiple parasitic structures (reflectors and directors) around the active oscillator, sets switches on the parasitic structures, and controls the state of the switches on the parasitic structures, thus realizing multiple radiation beams in three-dimensional space. The number of reconfigurable beams is much greater than that of conventional reconfigurable radiation pattern antennas. And by adding directors, the antenna beam reconstruction in three dimensions is realized.

[0056] Optionally, in one of the embodiments, when the antenna includes a first printed circuit board, a second printed circuit board and a third printed circuit board, at least 27 radiation beams are realized in a three-dimensional space. Figure 8 FIG. 1 is a schematic diagram of simulated beam reconstruction of a reflector in an antenna according to an optional embodiment of the present invention. Figure 8 As shown, Figure 8(a) is a diagram showing the effect of beam reconstruction when only one reflector is working. Wherein, Gain is the antenna gain. When no reflector is working, it is an omnidirectional mode, which means that the antenna radiates signal energy evenly in all directions on the horizontal plane. This radiation pattern is suitable for scenarios where signal coverage needs to be provided in a wider area. When only one reflector is working, four types of directional radiation can be achieved, among which directional radiation means that the antenna concentrates the signal energy mainly in a specific direction instead of radiating evenly in all directions. This radiation pattern is usually used to improve the coverage and strength of the signal in a specific direction, while reducing interference and signal leakage in other directions. Figure 8 (b) Four types of directional radiation are achieved when two reflectors work at the same time. Among them, reflectors 1 and 3 can work at the same time, reflectors 1 and 4 can work at the same time, reflectors 2 and 3 can work at the same time, and reflectors 2 and 4 can work at the same time. Among them, reflectors 1 and 2 are both located on the second printed circuit board, and reflectors 3 and 4 are both located on the third printed circuit board. Because the directions of reflectors 1 and 2 are in opposite directions, if reflectors 1 and 2 work at the same time, the effects on beam reconstruction will cancel each other out. Therefore, under normal circumstances, reflectors 1 and 2 do not work at the same time, and reflectors 3 and 4 do not work at the same time. By setting multiple reflectors, the antenna can realize beam reconstruction in the horizontal plane. The simulated beam reconstruction effect is as follows. Figure 8 The antenna can achieve one omnidirectional and at least eight directional radiations in the horizontal plane. The maximum gain of each directional beam is higher than 6dBi and the beam width is greater than 90°.

[0057] Fig. 9 is a schematic diagram of simulated beam reconstruction of the director in the antenna according to an optional embodiment of the present invention, such as Fig. 9 As shown in Figure 1, by changing the working state of the director, the antenna can achieve beam reconstruction in the elevation plane. Fig. 9 As shown in (a), when only the upper director is working, the antenna can achieve beam uptilt and maintain omnidirectional radiation characteristics in the 15° uptilt plane. The gain is about 2dBi higher than that of an ordinary dipole. Fig. 9 As shown in (b), when only the lower director is working, the antenna can achieve beam downtilt and maintain omnidirectional radiation characteristics in the 15° downtilt plane. It is realized that when the beam is reconstructed in the elevation plane, the antenna can still achieve omnidirectional radiation.

[0058] Fig.10 is a schematic diagram of simulated beam reconstruction in which the reflector and the director in the antenna work simultaneously according to an optional embodiment of the present invention, such as Fig.10 As shown in the figure, when the upper director is working, the reflector is also working synchronously, and the antenna can achieve directional radiation in the upper tilt plane. Therefore, the smart antenna can switch the working state of the director and reflector according to actual needs, and realize at least 27 radiation beams in three-dimensional space.

[0059] Fig.11 is a schematic diagram of measured beam reconstruction in an antenna provided in an optional embodiment of the present invention, wherein: Fig.11 (a) and (b) are the measured beam reconstruction effects in the horizontal plane. Fig.11 (c) and (d) are the measured beam reconstruction effect diagrams in the pitch plane. The measured beam effect diagram is basically consistent with the simulated beam effect diagram, and the antenna can achieve multi-beam reconstruction in three-dimensional space. The antenna loads 6 parasitic structures (4 reflector structures and 2 bent director structures) around the active oscillator and controls the state of the PIN diode on the parasitic structure, realizing at least 27 radiation beams in three-dimensional space.

[0060] In an embodiment of the present invention, the above-mentioned antenna is used to perform beam reconstruction, and the antenna includes a first printed circuit board and a second printed circuit board that are cross-connected, the first printed circuit board is connected to a control signal source, and is used to receive a control signal sent by the control signal source; the second printed circuit board is provided with an active vibrator, a director and a first reflector, wherein the active vibrator is used to receive the current sent by the transmitting source and convert the current into a radiation beam, the director is used to affect the plane position of the radiation beam generated by the active vibrator, and the first reflector is used to affect the radiation direction of the radiation beam generated by the active vibrator on the plane; the director is provided with a corresponding switch, and the switch corresponding to the director is used to control the working state of the corresponding director based on the control signal; the first reflector is provided with a corresponding switch, and the switch corresponding to the first reflector is used to control the working state of the corresponding first reflector based on the control signal, thereby achieving the purpose of realizing multiple radiation beam reconstruction, thereby achieving the transmission effect of improving the propagation performance of the antenna, and further solving the current problem that the number of switchable beams is small and the beam reconstruction technology can only be realized in one-dimensional direction when the antenna performs beam reconstruction.

[0061] According to an embodiment of the present invention, an optional embodiment of a method for performing beam reconstruction using the above-mentioned antenna is also provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0062] Fig.12 is a flow chart of a method for beam reconfiguration using the above antenna according to an optional embodiment of the present invention. Fig.12 As shown,

[0063] Step S1201: receiving a control signal sent by a control signal source.

[0064] Step S1202: Based on the control signal, adjust the switch states corresponding to the director and the reflector respectively.

[0065] Step S1203, reconstructing the radiation beam generated by the active vibrator through the reflector and director in the turned-on state to obtain a target beam.

[0066] Optionally, when performing beam reconstruction, a control signal based on a control signal source is first received, and the control signal can be used to control the working status of different reflectors and directors. Based on the control signal, the corresponding directors and reflectors can be adjusted to be turned on, that is, the beam reconstruction is affected. The reflectors and directors in the turned-on state will reconstruct the radiation beam generated by the active oscillator to obtain the target beam.

[0067] For example, the control signal source may be a test board, which may include a dip switch. When the operator turns the dip switch, a corresponding control signal is generated and sent to the corresponding reflector or director, so as to control the corresponding reflector or director to be turned on and in working state. The reflector and director in working state will reconstruct the radiation beam generated by the active oscillator to obtain the target beam.

[0068] Beamforming is a technology used in wireless communications, radar, and other radio frequency systems to focus signal energy in a specific direction or to form a specific beam pattern to improve signal transmission efficiency, coverage, or resolution. For example, if a beam pattern toward a preset direction needs to be formed, the reflector or director in the preset direction can be controlled to be turned on and in working state, and other parasitic structures (reflectors and directors) can be turned off. In this way, during the beamforming process, a directional beam pattern toward the preset direction will be formed under the influence of the reflector in working state.

[0069] The above method achieves the purpose of realizing multiple radiation beam reconstruction, thereby realizing the transmission effect of improving the propagation performance of the antenna, and further solves the current technical problem that the number of switchable beams is small and beam reconstruction can only be achieved in one-dimensional direction when the antenna is reconstructed.

[0070] The embodiment of the present invention proposes a design of a three-dimensional directional pattern reconfigurable smart antenna. The antenna is composed of a circuit printed board, which includes an active vibrator (butterfly dipole), a parasitic result and a PIN diode, and a DC control circuit of the PIN diode. By controlling the on-off combination of the PIN diodes loaded on different parasitic results, the antenna can realize multiple radiation beam switching in three-dimensional space, including omnidirectional radiation mode and high-gain directional mode at three different pitch angles (uptilt, downtilt, horizontal). The embodiment of the present invention can be implemented based on the WIFI 5G frequency band (other WIFI frequency bands can also be applied), with sufficient bandwidth, which can significantly improve the scene compatibility of the WIFI communication system.

[0071] According to an embodiment of the present invention, a device is provided. Fig.13 is a structural block diagram of an antenna beam reconstruction device provided according to an embodiment of the present invention, such as Fig.13 As shown, the device includes: a control signal source 1301 , an adjustment module 1302 and a reconstruction module 1303 .

[0072] The control signal source 1301 is used to send a control signal.

[0073] The adjustment module 1302 is connected to the control module 1301 and is used to adjust the switch states corresponding to the director and the reflector respectively based on the control signal.

[0074] The reconstruction module 1303 is connected to the adjustment module 1302 and is used to reconstruct the radiation beam generated by the active vibrator through the reflector and the director in the turned-on state to obtain the target beam.

[0075] According to an embodiment of the present invention, an electronic device is provided, using any one of the above antennas.

[0076] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0077] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0078] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0079] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0080] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0081] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An antenna, characterized in that: include: A first printed circuit board and a second printed circuit board that are cross-connected, wherein the first printed circuit board is used to receive a control signal sent by a control signal source; The second printed circuit board is provided with an active vibrator, a director and a first reflector, wherein the active vibrator is used to receive a transmission signal emitted by a transmission source and convert the transmission signal into a radiation beam, the director is used to affect the plane position of the radiation beam generated by the active vibrator, and the first reflector is used to affect the radiation direction of the radiation beam generated by the active vibrator on the plane; The director is provided with a corresponding switch, and the switch corresponding to the director is used to control the working state of the corresponding director based on the control signal; The first reflector is provided with a corresponding switch, and the switch corresponding to the first reflector is used to control the working state of the corresponding first reflector based on the control signal.

2. The antenna according to claim 1, characterized in that Also includes one or more third printed circuit boards, wherein: The third printed circuit board is connected to the first printed circuit board and the second printed circuit board respectively, and the third printed circuit board is not parallel to the first printed circuit board and the second printed circuit board, wherein the third printed circuit board is provided with a second reflector, and the second reflector is used to affect the radiation direction of the radiation beam generated by the active vibrator on the plane alone or in combination with the first reflector; The second reflector is provided with a corresponding switch, and the switch corresponding to the second reflector is used to control the working state of the corresponding second reflector based on the control signal.

3. The antenna according to claim 1, characterized in that The active oscillator is a butterfly dipole.

4. The antenna according to claim 1, characterized in that: The first printed circuit board is vertically inserted into the second printed circuit board.

5. The antenna according to claim 1, characterized in that The director includes an upper director and a lower director, wherein the upper director is used to influence the plane position of the radiation beam generated by the active vibrator to move toward a first preset direction, and the lower director is used to influence the plane position of the radiation beam generated by the active vibrator to move toward a second preset direction, wherein the first preset direction is in opposite directions to the second preset direction.

6. The antenna according to any one of claims 1 to 5, characterized in that: The switch is a PIN diode.

7. The antenna according to claim 1, characterized in that: The second printed circuit board includes one or more of the first reflectors.

8. The antenna according to claim 7, characterized in that: The second printed circuit board includes two symmetrically arranged first reflectors, and the two symmetrically arranged first reflectors are used to influence the radiation direction of the radiation beam generated by the active oscillator on the plane to move toward the direction of the first reflector in a working state, wherein the two symmetrically arranged first reflectors are not in a working state at the same time.

9. An antenna beam reconstruction device, characterized in that: Using the antenna according to any one of claims 1 to 8 to perform beam reconstruction, comprising: A control signal source, used for sending a control signal; An adjustment module, used for adjusting the switch states corresponding to the director and the reflector respectively based on the control signal; The reconstruction module is used to reconstruct the radiation beam generated by the active vibrator through the reflector and the director in the turned-on state to obtain the target beam.

10. An electronic device, characterized in that: It comprises the antenna according to any one of claims 1 to 8 or the antenna beam reconstruction device according to claim 9.

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