Multi-band adaptive tuning communication antenna

Abstract

The utility model provides a multi-band adaptive tuning communication antenna, comprising a support frame and a plurality of antenna units, the two sides of the support frame are provided with the plurality of antenna units, the side surface of the support frame is provided with a radio frequency front end, the other side of the support frame is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with the antenna units. One side of the connecting plate is detachably connected with a rotating seat through a connector, the rotating seat is movably connected to the inner sides of the mounting plates, the number of the mounting plates is two, the mounting plates are provided with bearings, and the outer sides of the mounting plates are fixedly connected with a servo motor. Compared with the prior art, the communication antenna has the advantages that through the matching arrangement of the connecting plate, the joint, the rotating seat, the mounting plate, the servo motor, the fixed point, the contact point and the elastic belt, the communication antenna has high stability: the constraining force of the elastic belt and the closed-loop control of the servo motor have a synergistic effect, so that the angle adjustment error is small; anti-interference performance: continuous swing under high-grade wind load can be borne, and the vibration amplitude is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, and in particular to a multi-band adaptive tuning communication antenna. Background Technology

[0002] Communication antennas are crucial components in communication systems, responsible for transmitting and receiving electromagnetic waves, and serving as a bridge for wireless communication. Traditional communication antenna mechanical adjustment mechanisms have the following drawbacks:

[0003] Angle adjustment relies on stepper motors or manual operation, which has a slow response speed and is easily affected by inertial vibration;

[0004] The mechanical structure lacks wind load and environmental interference resistance design, and is prone to deformation or wear after long-term use.

[0005] This invention solves the above problems by using a composite adjustment mechanism combining servo motor drive and elastic band constraint, as well as a modular design of the radio frequency front end and antenna unit. Utility Model Content

[0006] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0007] Therefore, one objective of this invention is to propose a multi-band adaptive tuning communication antenna to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0008] To achieve the above objectives, one embodiment of the present invention provides a multi-band adaptive tuning communication antenna, including a support frame and multiple antenna elements, wherein multiple antenna elements are mounted on both sides of the support frame and a radio frequency front end is mounted on the side of the support frame;

[0009] A connecting plate is fixedly connected to the other side of the support frame, and a rotating seat is detachably connected to one side of the connecting plate via a connector;

[0010] The rotary seat is movably connected to the inside of the mounting plate, and there are two mounting plates, each equipped with a bearing.

[0011] A servo motor is fixedly connected to the outside of the mounting plate, and the output end of the servo motor is fixedly connected to the rotary base.

[0012] The mounting plate has fixing points on both sides, the rotating base has joints fixedly connected to both sides, and an elastic band is fixedly connected between the fixing points and the joints.

[0013] Preferably, in any of the above schemes, the support frame is welded to the antenna unit, and each antenna unit corresponds to an independent receiving channel of the radio frequency front end.

[0014] The above technical solution is adopted: the antenna elements are arranged in a certain layout to form an array to achieve multi-band coverage and beamforming. Therefore, this communication antenna is a multi-band antenna.

[0015] Preferably, in any of the above solutions, the joint is specifically a bolt and a nut, wherein the bolt is inserted into the corresponding part of the rotating seat and the connecting plate, and the bolt and the nut are threadedly connected.

[0016] The above technical solution employs the following: RF front-end: used to receive signals from the antenna array and convert them into digital signals for processing. The RF front-end is integrated into the side of the support frame, enabling multi-band signal transmission and reception and adaptive tuning. The support frame is detachably connected to the rotating base via a connector plate. The rotating base is embedded in the bearing of the mounting plate and is driven to rotate by a servo motor, thereby adjusting the overall angle of the antenna.

[0017] Preferably, of any of the above solutions, the servo motor is a brushless DC motor with an absolute encoder, and an overload protection clutch is connected in series between the servo motor and the rotary table.

[0018] The servo motor directly drives the rotary table to rotate via its output shaft, while elastic bands connect the fixing points on both sides of the mounting plate to the contact points on the rotary table. During adjustment:

[0019] Dynamic balance: When the servo motor drives the rotary table to rotate, the elastic band generates a restraining force through stretching, which counteracts the swaying caused by inertia or external disturbances (such as wind).

[0020] Vibration suppression: The high stiffness of the elastic band (10-50 N / mm) makes its deformation small during rapid adjustment, avoiding oscillations caused by elastic hysteresis;

[0021] Redundancy protection: When the servo motor is overloaded, the overload protection clutch automatically disengages to prevent damage to the mechanical structure.

[0022] Preferably, in any of the above solutions, the fixing point is riveted or bolted to the elastic band, and the joint is welded to the rotating seat.

[0023] This communication antenna features high stability: the constraint force of the elastic band and the closed-loop control of the servo motor work together to minimize angle adjustment error.

[0024] Anti-interference: It can withstand continuous swaying under high-level wind loads, and the vibration amplitude is greatly reduced.

[0025] Preferably, in any of the above embodiments, the joint is riveted or bolted to the end of the elastic band, the elastic band is a highly elastic silicone rubber band or a metal spring, and the tensile stiffness of the elastic band is in the range of 10-50 N / mm.

[0026] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0027] This multi-band adaptive tuning communication antenna, through the coordinated arrangement of a mounting plate, connector, rotatable base, mounting plate, servo motor, fixed point, contact point, and elastic band, exhibits high stability: the constraint force of the elastic band and the closed-loop control of the servo motor work together to minimize angle adjustment error.

[0028] Anti-interference: It can withstand continuous swaying under high-level wind loads, and the vibration amplitude is greatly reduced.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0032] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0033] Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective;

[0034] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0035] In the diagram: 1-Support frame, 2-Antenna unit, 3-RF front end, 4-Connector board, 5-Connector, 6-Tuner, 7-Mounting plate, 8-Servo motor, 9-Fixing point, 10-Contact point, 11-Elastic band. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] like Figure 1-4 As shown, this multi-band adaptive tuning communication antenna includes a support frame 1 and multiple antenna elements 2. Multiple antenna elements 2 are installed on both sides of the support frame 1, and an RF front-end 3 is installed on the side of the support frame 1.

[0039] A connecting plate 4 is fixedly connected to the other side of the support frame 1, and a rotating seat 6 is detachably connected to one side of the connecting plate 4 via a connector 5.

[0040] The rotary seat 6 is movably connected to the inside of the mounting plate 7, which has two plates, each equipped with a bearing.

[0041] A servo motor 8 is fixedly connected to the outside of the mounting plate 7, and the output end of the servo motor 8 is fixedly connected to the rotary base 6.

[0042] The mounting plate 7 has fixing points 9 on both sides, and the rotating base 6 has contacts 10 fixedly connected to both sides. An elastic band 11 is fixedly connected between the fixing points 9 and the contacts 10.

[0043] Example 1: The support frame 1 is welded to the antenna element 2, and each antenna element 2 corresponds to an independent receiving channel of the RF front-end 3. In this communication antenna, the antenna elements 2 are arranged in a certain layout to form an array to achieve multi-band coverage and beamforming; therefore, this communication antenna is a multi-band antenna. The connector 5 specifically consists of a bolt and a nut, wherein the bolt is inserted into the corresponding part of the rotator 6 and the connecting plate 4, and the bolt and nut are threadedly connected.

[0044] Example 2: RF Front-End 3: Used to receive signals from the antenna array and convert them into digital signals for processing. The RF front-end 3 is integrated into the side of the support frame 1, enabling multi-band signal transmission and reception and adaptive tuning. The support frame 1 is detachably connected to the rotating base 6 via a connecting plate 4. The rotating base 6 is embedded in the bearing of the mounting plate 7 and is driven to rotate by a servo motor 8, thereby adjusting the overall angle of the antenna. The servo motor 8 is a brushless DC motor with an absolute encoder, and an overload protection clutch is connected in series between the servo motor 8 and the rotating base 6. The fixing point 9 is riveted or bolted to the elastic band 11, and the contact point 10 is welded to the rotating base 6. The servo motor 8 directly drives the rotating base 6 to rotate via its output shaft, while the elastic band 11 connects the fixing points 9 on both sides of the mounting plate 7 to the contact points 10 on the rotating base 6. During adjustment:

[0045] Dynamic balance: When the servo motor 8 drives the rotary table 6 to rotate, the elastic band 11 generates a restraining force through stretching, which counteracts the swaying caused by inertia or external disturbances (such as wind).

[0046] Vibration suppression: The high stiffness (10-50 N / mm) of the elastic band 11 makes its deformation small during rapid adjustment, avoiding oscillations caused by elastic hysteresis;

[0047] Redundancy protection: When the servo motor 8 is overloaded, the overload protection clutch automatically disengages to prevent damage to the mechanical structure. The end of the contact 10 is riveted or bolted to the elastic band 11. The elastic band 11 is a high-elasticity silicone rubber band or a metal spring, and the tensile stiffness of the elastic band 11 is in the range of 10-50 N / mm.

[0048] The working principle of this utility model is as follows:

[0049] The support frame 1 is made of 6061 aluminum alloy, and the antenna unit 2 is fixed by laser welding. Each antenna unit 2 corresponds to an independent receiving channel of the radio frequency front-end 3.

[0050] Servo motor 8 is a Maxon EC-4pole brushless motor with a built-in 17-bit absolute encoder. The torque threshold of the overload protection clutch 13 is set to 1.3 times the rated torque.

[0051] The elastic band 11 is made of silicone rubber (tensile stiffness 30N / mm), and both ends are riveted to the fixing point 9 and the joint 10 by stainless steel buckles.

[0052] The bearing on mounting plate 7 is an IKO CRBH series crossed roller bearing with an axial clearance of 0.03mm.

[0053] Example 2 (Adjustment Process)

[0054] The control system sends commands to the servo motor 8 based on the target angle;

[0055] The servo motor 8 drives the rotary table 6 to rotate, and the elastic band 11 generates a linear restoring force as the rotary table 6 moves.

[0056] The encoder provides real-time angle data, and the microprocessor uses a PID algorithm to control the motor speed in a closed loop.

[0057] If wind load or mechanical jamming is detected causing torque to exceed the limit, the overload protection clutch will disengage instantly.

[0058] After adjustment, the prestress of the elastic band 11 is maintained in the locked position of the rotating seat 6 to avoid rebound error.

[0059] Compared with the prior art, the present invention has the following advantages:

[0060] This multi-band adaptive tuning communication antenna, through the coordinated arrangement of connector 4, connector 5, rotating base 6, mounting plate 7, servo motor 8, fixed point 9, contact point 10, and elastic band 11, has high stability: the constraint force of elastic band 11 and the closed-loop control of servo motor 8 work together to achieve small angle adjustment error.

[0061] Anti-interference: It can withstand continuous swaying under high-level wind loads, and the vibration amplitude is greatly reduced.

Claims

1. A multi-band adaptive tuning communication antenna, characterized in that, It includes a support frame (1) and multiple antenna units (2). Multiple antenna units (2) are installed on both sides of the support frame (1), and a radio frequency front end (3) is installed on the side of the support frame (1). A connecting plate (4) is fixedly connected to the other side of the support frame (1), and a rotating seat (6) is detachably connected to one side of the connecting plate (4) via a connector (5); The rotary seat (6) is movably connected to the inside of the mounting plate (7), which has two plates, each equipped with a bearing; A servo motor (8) is fixedly connected to the outside of the mounting plate (7), and the output end of the servo motor (8) is fixedly connected to the rotary table (6); The mounting plate (7) has fixing points (9) on both sides, and the rotating base (6) has contacts (10) fixedly connected on both sides. An elastic band (11) is fixedly connected between the fixing points (9) and the contacts (10).

2. The multi-band adaptive tuning communication antenna as described in claim 1, characterized in that: The support frame (1) is welded to the antenna unit (2), and each antenna unit (2) corresponds to an independent receiving channel of the radio frequency front end (3).

3. The multi-band adaptive tuning communication antenna as described in claim 2, characterized in that: The joint (5) is specifically a bolt and a nut, wherein the bolt is inserted into the corresponding part of the rotating seat (6) and the connecting plate (4), and the bolt and nut are threadedly connected.

4. A multi-band adaptive tuning communication antenna as described in claim 3, characterized in that: The servo motor (8) is a brushless DC motor with an absolute encoder, and an overload protection clutch is connected in series between the servo motor (8) and the rotary table (6).

5. A multi-band adaptive tuning communication antenna as described in claim 4, characterized in that: The fixing point (9) is riveted or bolted to the elastic band (11), and the joint (10) is welded to the rotating seat (6).

6. A multi-band adaptive tuning communication antenna as described in claim 5, characterized in that: The joint (10) is riveted or bolted to the end of the elastic band (11), the elastic band (11) is a high elastic silicone rubber band or a metal spring, and the tensile stiffness of the elastic band (11) is in the range of 10-50 N / mm.

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