Portable soft oscillator log-periodic antenna

Abstract

The invention discloses a portable soft oscillator log-periodic antenna, and relates to the technical field of non-frequency-variable antennas. The portable soft oscillator log-periodic antenna comprises an antenna main rod, a folding supporting rod and a winding mechanism, the folding supporting rod is hinged to the antenna main rod, the folding supporting rod is connected with an edge suspension wire arranged at one end, away from the hinged end, of the antenna main rod, the winding mechanism is connected with the folding supporting rod, and the folding supporting rod is connected with the winding mechanism. The winding mechanism is provided with a tightening rope connected with the folding supporting rod, the tightening rope and the side suspension wire apply force rotating in different directions to the folding supporting rod, and the antenna main rod is provided with a soft vibrator connected with the side suspension wire. According to the portable soft oscillator log-periodic antenna, through folding design of the antenna structure, the size of the antenna in a non-working state is effectively reduced, the transportation and installation convenience of the antenna is remarkably improved, and the portable soft oscillator log-periodic antenna has the beneficial effects of being foldable and convenient to transport and install.

Description

Technical Field

[0001] The present invention relates to the technical field of non-frequency-variable antennas, and in particular to a portable soft dipole log-periodic antenna. Background Art

[0002] Log-periodic antennas are high-performance broadband antennas with significant advantages, including wide bandwidth, high gain, and good directivity. They are widely used in a variety of fields across shortwave, ultrashortwave, and microwave bands. Currently, the log-periodic dipole antenna is the most widely used type of log-periodic antenna.

[0003] However, due to the inherent design characteristics of existing log-periodic antennas, the length of a single element increases monotonically with the wavelength at its operating frequency. The lower the operating frequency and the longer the wavelength, the longer the element. This directly leads to a larger envelope for log-periodic antennas. This larger envelope creates significant inconvenience during transportation and installation. For example, it requires more space during transportation, increasing transportation costs. It also significantly increases the difficulty of installation in space-constrained environments, such as vehicles, ships, or confined spaces.

[0004] Therefore, it is urgent to improve the existing log-periodic antenna structure to enhance its portability and meet the growing demand for practical applications. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing logarithmic periodic antenna has a large envelope space and is inconvenient to transport and install. The purpose is to provide a portable soft-diopter logarithmic periodic antenna. Through the folding design of the antenna structure, the volume of the antenna in the non-working state is effectively reduced, and the convenience of its transportation and installation is significantly improved. It has the beneficial effects of being foldable and easy to transport and install.

[0006] The present invention is achieved through the following technical solutions: The present invention provides a portable soft dipole logarithmic periodic antenna, which includes an antenna main rod, a folding support rod and a winding mechanism. The folding support rod is hinged to the antenna main rod, and the folding support rod and the antenna main rod are connected by a side suspension line at one end away from the hinge. The reeling mechanism is connected to the folding support rod, and the reeling mechanism is provided with a tightening rope connected to the folding support rod. The tightening rope and the side suspension line apply rotational forces in different directions to the folding support rod. The antenna main pole is provided with a soft vibrator connected with the side suspension line.

[0007] In this technical solution, the hinged design of the folding support rod and the antenna main pole, coupled with the foldable nature of the soft vibrator, allows the antenna to be significantly folded when not in operation, significantly reducing the envelope and facilitating transportation and installation. For example, in an in-vehicle communication system, the antenna can be folded and stored while the vehicle is in motion and quickly deployed upon arrival, greatly improving ease of use. Furthermore, the opposing forces exerted on the folding support rod by the side suspension wires and tightening ropes ensure the structural stability of the antenna when deployed.

[0008] Furthermore, in the present invention, a fixed base is provided at the bottom end of the antenna main pole, and the reeling mechanism and the folding support rod are both connected to the fixed base.

[0009] Furthermore, in the present invention, the above-mentioned winding mechanism includes a mounting seat connected to the fixed base, the mounting seat is rotatably connected to a rotating shaft, the tightening rope is wound around the rotating shaft, and the rotating shaft is provided with a driving member and a locking member.

[0010] Furthermore, in the present invention, the locking member includes a locking ratchet fixedly connected to the rotating shaft, and the locking member also includes a bent handle rotatably connected to the mounting seat, and the bent handle is provided with a pawl that cooperates with the locking ratchet.

[0011] Furthermore, in the present invention, the above-mentioned driving member includes a driving ratchet fixedly connected to the rotating shaft, the direction of the driving ratchet is opposite to the direction of the locking ratchet, and the driving member also includes a driving handle rotatably connected to the mounting seat, and the driving handle is provided with a shifting tooth that cooperates with the driving ratchet.

[0012] Furthermore, in the present invention, the mounting base is connected to an extension arm aligned with the antenna main pole, and the extension arm is provided with a wire groove for the tightening rope to pass through.

[0013] Furthermore, in the present invention, the soft vibrator includes a vibrator body, the vibrator body is provided with a connector connected to the antenna main pole, and the vibrator body is provided with an elastic rope connected to the side suspension line.

[0014] Furthermore, in the present invention, the side suspension line is provided with a fixing piece, both ends of the fixing piece are hinged with a joint 1 connected to the side suspension line, and the middle of the fixing piece is provided with a through hole connected to the elastic rope.

[0015] Furthermore, in the present invention, the length of the connecting member is greater than the length of the elastic rope.

[0016] Furthermore, in the present invention, the above-mentioned antenna main pole is provided with a hard vibrator, and the hard vibrator is located on the upper side of the soft vibrator on the antenna main pole. A triangular fixing frame is provided on the top side of the antenna main pole, and the top of the triangular fixing frame is hinged with a joint 2 connected to the side suspension line, and the top of the folding support rod is hinged with a joint 3 connected to the side suspension line.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects: Significantly improved portability: By folding the support rod and the retracting mechanism, the antenna can be quickly folded and stored, significantly reducing the overall size of the antenna, making it easier to transport and carry, and meeting the portability requirements of the antenna in different scenarios.

[0018] Easy installation: When unfolding the antenna, you only need to operate the drive part of the reeling mechanism to quickly unfold the folding support rod. At the same time, the soft vibrator and hard vibrator will also unfold automatically. There is no need for complicated installation steps, which reduces the installation difficulty and improves the installation efficiency.

[0019] Stable and reliable structure: The reverse tension formed by the side suspension line and the tightening rope, as well as the design of the fixed base, triangular fixing frame and other structures, make the antenna have good stability in the unfolded state, able to withstand certain wind and external force interference, and ensure the normal operation of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 A schematic diagram of a portable soft dipole log-periodic antenna according to the present invention; Figure 2 is a schematic diagram of a triangular fixing frame of the present invention; Figure 3 is a schematic diagram of a fixing member of the present invention; Figure 4 is a schematic diagram of the fixed base and the winding mechanism of the present invention; Figure 5 It is a schematic diagram of the interior of the winding mechanism of the present invention; Figure 6 is a front view schematic diagram of the locking member of the present invention; Figure 7 It is a front view schematic diagram of the driving member of the present invention.

[0021] The marks and corresponding parts names in the accompanying drawings are: 1-antenna main pole, 2-folding support pole, 3-side suspension line, 4-winding mechanism, 401-mounting seat, 402-rotating axis, 403-extension arm, 4031-wire slot, 5-tightening rope, 6-soft vibrator, 601-vibrator body, 602-connector, 603-elastic rope, 7-fixed base, 8-triangular fixing frame, 801-connector 2, 9-fixing part, 901-connector 1, 902-through hole, 903-elastic rope, 10-hard vibrator, 11-driving part, 1101-driving ratchet, 1102-driving handle, 1103-switching tooth, 12-locking part, 1201-locking ratchet, 1202-bending handle, 1203-pawl, 13-hinge. DETAILED DESCRIPTION

[0022] In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] Example 1 Combine Figures 1 to 7 As shown, this is the portable soft dipole log-periodic antenna in embodiment 1 of the present invention, and the specific structure is described as follows.

[0025] like Figure 1The portable soft dipole log-periodic antenna of this embodiment is primarily composed of a main antenna mast 1, a folding support mast 2, a reeling mechanism 4, side suspension wires 3, and a soft dipole 6. The main mast 1 is the main support structure for the antenna, with a fixed base 7 fixed to its bottom. The base 7 has multiple mounting holes, allowing bolts to secure the antenna to the ground, a vehicle platform, or other mounting surface.

[0026] Further, combined Figure 1 and Figure 2 As shown, multiple hard vibrators 10 and multiple soft vibrators 6 are arranged in order from top to bottom on the antenna main mast 1, with the hard vibrators 10 located above the soft vibrators 6. The hard vibrators 10 are made of metal and have high rigidity, which is used to improve the antenna's signal reception and transmission performance in the high-frequency band. The soft vibrators 6 are composed of a vibrator body 601, a connector 602, and an elastic cord 603. The vibrator body 601 is made of a flexible conductive material, such as a flexible metal sheet or conductive rubber, and the connector 602 is a conductive metal wire. One end of the connector 602 is fixed to the antenna main mast 1, and the other end of the connector 602 is connected to the vibrator body 601. The end of the soft vibrator 6 away from the connector 602 is connected to the fixing member 9 on the side suspension line 3.

[0027] In this embodiment, combined with Figure 1 and Figure 4 As shown, a fixed base 7 is mounted at the bottom of the antenna main mast 1. One end of the folding support rod 2 is hinged to the fixed base 7 via a hinge axis, allowing the folding support rod 2 to rotate freely about the hinge axis. A side suspension wire 3 is connected to the end of the folding support rod 2 and the antenna main mast 1 away from the hinge axis.

[0028] Furthermore, the side hanging wire 3 is made of high-strength flexible stainless steel wire rope, combined with Figure 1 As shown, in this embodiment 1, the side suspension wire 3 is divided into multiple sections, and two sections of the side suspension wire 3 are connected by a fixing member 9. A joint 901 is hinged at each end of the fixing member 9, and the joint 901 is used to connect to the end of the side suspension wire 3. A through hole 902 is defined in the center of the fixing member 9. Through hole 902 is used to connect the elastic cord 603 of the soft vibrator 6, ensuring that the soft vibrator 6 is in a straight state.

[0029] Combine Figure 1 and Figure 2 As shown, a triangular fixing frame 8 is mounted on the upper and lower sides of the top of the antenna main pole 1. A second joint 801 is hinged at the top of the triangular fixing frame 8 for connecting to the end of the side suspension wire 3. Similarly, a third joint is hinged at the top of the folding support pole 2, also for connecting to the end of the side suspension wire 3.

[0030] Combine Figure 1 and Figure 4As shown, in this embodiment, the winding mechanism 4 is installed on the fixed base 7. The winding mechanism 4 includes a mounting seat 401 and a rotating shaft 402. The driving member 11 and the locking member 12 are installed on the rotating shaft 402.

[0031] The mounting base 401 is a metal bracket structure that can be fixed to the fixed base 7 by bolts or can be movably connected by a hinge 13. Figure 4 and Figure 5 As shown, the mounting base 401 is internally mounted with bearings, and both ends of the rotating shaft 402 are connected to the bearings. The tightening cord 5 is wound around the rotating shaft 402. The mounting base 401 is also mounted with an extension arm 403, which itself has a wire groove 4031. One end of the tightening cord 5 is wound around the rotating shaft 402, and the other end passes through the wire groove 4031 of the extension arm 403 and is connected to the folding support rod 2.

[0032] Furthermore, combined Figure 5 、 Figure 6 and Figure 7 As shown, the driving ratchet 1101 of the driving member 11 is fixedly connected to the rotating shaft 402 through the key and keyway, and the locking ratchet 1201 of the locking member 12 is also fixedly connected to the rotating shaft 402 through the key and keyway. Figure 6 The bending handle 1202 is approximately V-shaped, and the left end of the bending handle 1202 is rotatably connected to the mounting seat 401 through an axle pin. A pawl 1203 is provided at the bottom of the left side of the bending handle 1202, and the pawl 1203 is tilted toward the lower left. The locking ratchet 1201 and the pawl 1203 cooperate to ensure Figure 6 The locking ratchet 1201 can only rotate clockwise and cannot rotate counterclockwise.

[0033] like Figure 5 and Figure 7 As shown, the driving handle 1102 is also approximately V-shaped and is rotatably connected to the mounting base 401 via a rotating shaft. The toggle teeth 1103 on the right side of the driving handle 1102 are tilted toward the upper right and can cooperate with the driving ratchet 1101. Since the teeth of the locking ratchet 1201 are oriented in the opposite direction to those of the locking ratchet 1201, as shown in FIG. Figure 7 , hold the driving handle 1102 and lift it up, you can turn the driving ratchet 1101 and the rotating shaft 402 to rotate counterclockwise, the tightening rope 5 is gradually tightened, and the change is to Figure 6 The rotating shaft 402 rotates clockwise, and the pawl 1203 is engaged with the locking ratchet 1201 to prevent the rotating shaft 402 from rotating backward and causing the tightening rope 5 to loosen.

[0034] It should be noted that if Figure 1As shown, the side of the mounting base 401 and the side of the fixed base 7 are connected by hinges 13, allowing the retracting mechanism 4 to rotate from the end of the antenna main mast 1 to align with the side of the antenna main mast 1, further improving the folding effect. When unfolded, the retracting mechanism 4 can rotate from the side of the antenna main mast 1 to align with the end face of the antenna main mast 1, and then the mounting base 401 and the fixed base 7 are fixedly connected by screws.

[0035] During installation and use, first, fix the fixed base 7 to the desired installation position with bolts. Then, hold the driving handle 1102 and turn it. The toggle teeth 1103 on the driving handle 1102 drive the driving ratchet 1101 to rotate, thereby rotating the rotating shaft 402, and the tightening rope 5 begins to reel in. As the tightening rope 5 reels in, the folding support rod 2 gradually unfolds around the hinge axis under the tension of the tightening rope 5, and the side suspension wire 3 is also tightened. After unfolding, the side suspension wire 3 and the tightening rope 51 exert rotational forces in different directions on the folding support rod 2. Through the interaction of these forces, the structural stability of the antenna after unfolding is ensured. When the folding support rod 2 is unfolded to the appropriate angle, the pawl 1203 of the bending handle 1202 engages with the locking ratchet 1201, fixing the position of the rotating shaft 402 and preventing the tightening rope 5 from loosening. At this time, the elastic rope 603 of the soft vibrator 6 is stretched under the tension of the side suspension line 3, the soft vibrator 6 is stretched to the working state, the hard vibrator 10 is also in the normal working position, and the antenna can be put into use.

[0036] Example 2 In this embodiment, the connection structure between the side suspension wire 3 and the soft vibrator 6 has been further optimized. The vibrator body 601 of the soft vibrator 6 is covered with a flexible insulating protective cover. Made of silicone rubber, the cover offers excellent insulation and flexibility, effectively protecting the vibrator body 601 from environmental corrosion and extending the service life of the soft vibrator 6. Furthermore, the elastic cord 603 can be directly constructed from a spring. When the antenna is stored, the elastic cord 603 quickly returns to its original state, facilitating ease of use.

[0037] Example 3 This embodiment improves the drive method of the winding mechanism 4. An electric motor and a reducer can be installed on the outside of the mounting base 401. The output shaft of the reducer is connected to the protruding end of the rotating shaft 402 through a transmission (e.g., a chain drive or a gear drive). The rotating shaft 402 can be electrically driven by a remote control or a control switch.

[0038] Furthermore, a tension sensor (not shown) is mounted on the extension arm 403 of the reeling mechanism 4. This tension sensor is connected to the electric motor's control system. The take-up cord 5 passes around the tension sensor and enters the cable slot 4031. When the tension in the take-up cord 5 exceeds a preset value, the tension sensor transmits a signal to the control system, which automatically stops the electric motor to prevent damage to the antenna components due to excessive tension.

[0039] In summary, the present invention provides a portable soft dipole log-periodic antenna, comprising an antenna main mast 1, a folding support mast 2, and a reeling mechanism 4. The folding support mast 2 is hinged to the antenna main mast 1. A side suspension wire 3 is provided at the end of the folding support mast 2 away from the hinge, connecting the antenna main mast 1 and the folding support mast 2. The reeling mechanism 4 is connected to the folding support mast 2 and includes a tightening cord 5 connected to the folding support mast 2. The tightening cord 5 and the side suspension wire 3 exert rotational forces on the folding support mast 2 in different directions. The antenna main mast 1 is provided with a soft dipole 6 connected to the side suspension wire 3. A fixed base 7 is provided at the bottom end of the antenna main mast 1. The reeling mechanism 4 and the folding support mast 2 are both connected to the fixed base 7. The reeling mechanism 4 includes a mounting base 401 connected to the fixed base 7. The mounting base 401 is rotatably connected to a rotating shaft 402. The tightening cord 5 is wound around the rotating shaft 402. The rotating shaft 402 is provided with a driving member 11 and a locking member 12. The locking member 12 includes a locking ratchet 1201 fixedly connected to the rotating shaft 402. The locking member 12 also includes a curved handle 1202 rotatably connected to the mounting base 401. The curved handle 1202 is provided with a pawl 1203 that engages with the locking ratchet 1201. The driving member 11 includes a driving ratchet 1101 fixedly connected to the rotating shaft 402. The driving ratchet 1101 is oriented oppositely to the locking ratchet 1201. The driving member 11 also includes a driving handle 1102 rotatably connected to the mounting base 401. The driving handle 1102 is provided with a toggle tooth 1103 that engages with the driving ratchet 1101. The mounting base 401 is connected to an extension arm 403 aligned with the antenna main mast 1. The extension arm 403 is provided with a wire slot 4031 for the tightening cord 5 to pass through. The soft vibrator 6 includes a vibrator body 601, which is provided with a connector 602 connected to the antenna main pole 1. The vibrator body 601 is also provided with an elastic cord 603 connected to the side suspension line 3. The side suspension line 3 is provided with a fixing member 9, and the fixing member 9 has a joint 1 901 hinged at both ends thereof, which is connected to the side suspension line 3. The fixing member 9 has a through hole 902 in the middle thereof, which is connected to the elastic cord 603. The length of the connecting member 602 is greater than the length of the elastic cord 603. The antenna main pole 1 is provided with a hard vibrator 10, which is located on the upper side of the soft vibrator 6 on the antenna main pole 1. The top side of the antenna main pole 1 is provided with a triangular fixing frame 8, and the top of the triangular fixing frame 8 is hinged with a joint 2 801 connected to the side suspension line 3. The top of the folding support pole 2 is hinged with a joint 3 connected to the side suspension line 3.

[0040] Therefore, the portable soft dipole log-periodic antenna of the present invention effectively reduces the volume of the antenna in a non-working state, and significantly improves the convenience of its transportation and installation.

[0041] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable soft dipole log-periodic antenna, characterized in that: It comprises an antenna main rod (1), a folding support rod (2) and a reeling mechanism (4), The folding support rod (2) is hinged to the antenna main rod (1); the folding support rod (2) and the antenna main rod (1) are connected by a side suspension line (3) at one end away from the hinge; the reeling mechanism (4) is connected to the folding support rod (2); the reeling mechanism (4) is provided with a tightening rope (5) connected to the folding support rod (2); the tightening rope (5) and the side suspension line (3) apply a force to the folding support rod (2) to rotate in different directions. The antenna main pole (1) is provided with a soft vibrator (6) connected to the side suspension wire (3).

2. The portable soft dipole log-periodic antenna according to claim 1, characterized in that: A fixed base (7) is provided at the bottom end of the antenna main pole (1), and the reeling mechanism (4) and the folding support pole (2) are both connected to the fixed base (7).

3. The portable soft dipole log-periodic antenna according to claim 2, characterized in that: The winding mechanism (4) comprises a mounting seat (401) connected to the fixed base (7); the mounting seat (401) is rotatably connected to a rotating shaft (402); the tightening rope (5) is wound around the rotating shaft (402); and the rotating shaft (402) is provided with a driving member (11) and a locking member (12).

4. The portable soft dipole log-periodic antenna according to claim 3, characterized in that: The locking member (12) comprises a locking ratchet (1201) fixedly connected to the rotating shaft (402), and the locking member (12) further comprises a curved handle (1202) rotatably connected to the mounting seat (401), and the curved handle (1202) is provided with a pawl (1203) that cooperates with the locking ratchet (1201).

5. The portable soft dipole log-periodic antenna according to claim 4, characterized in that: The driving member (11) includes a driving ratchet (1101) fixedly connected to the rotating shaft (402), the driving ratchet (1101) being oriented opposite to the locking ratchet (1201), and the driving member (11) further includes a driving handle (1102) rotatably connected to the mounting seat (401), the driving handle (1102) being provided with a shifting tooth (1103) cooperating with the driving ratchet (1101).

6. The portable soft dipole log-periodic antenna according to claim 5, characterized in that: The mounting seat (401) is connected to an extension arm (403) aligned with the antenna main pole (1), and the extension arm (403) is provided with a wire groove (4031) for the tightening rope (5) to pass through.

7. The portable soft dipole log-periodic antenna according to claim 1, characterized in that: The soft vibrator (6) comprises a vibrator body (601), the vibrator body (601) is provided with a connecting piece (602) connected to the antenna main pole (1), and the vibrator body (601) is provided with an elastic rope (603) connected to the side suspension line (3).

8. The portable soft dipole log-periodic antenna according to claim 7, characterized in that: The side suspension line (3) is provided with a fixing piece (9), and both ends of the fixing piece (9) are hinged with a joint 1 (901) connected to the side suspension line (3), and the middle of the fixing piece (9) is provided with a through hole (902) connected to the elastic rope (603).

9. The portable soft dipole log-periodic antenna according to claim 8, characterized in that: The length of the connecting member (602) is greater than the length of the elastic rope (603).

10. The portable soft dipole log-periodic antenna according to any one of claims 1 to 9, characterized in that: The antenna main pole (1) is provided with a hard vibrator (10), and the hard vibrator (10) is located on the upper side of the soft vibrator (6) on the antenna main pole (1). A triangular fixing frame (8) is provided on the top side of the antenna main pole (1), and the top of the triangular fixing frame (8) is hinged with a second joint (801) connected to the side suspension line (3), and the top of the folding support rod (2) is hinged with a third joint connected to the side suspension line (3).

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