Portable soft-oscillator log-periodic antenna

Abstract

The application discloses a portable soft-vibrator logarithmic-periodic antenna and relates to the technical field of non-frequency-variable antennas. The portable soft-vibrator logarithmic-periodic antenna comprises an antenna main rod, a folding support rod and a winding mechanism, the folding support rod is hinged to the antenna main rod, the folding support rod and the antenna main rod are provided with a side hanging line at the end away from the hinge, the winding mechanism is connected to the folding support rod, the winding mechanism is provided with a tightening rope connected to the folding support rod, the tightening rope and the side hanging line apply forces rotating in different directions to the folding support rod, and the antenna main rod is provided with a soft vibrator connected to the side hanging line. The portable soft-vibrator logarithmic-periodic antenna effectively reduces the volume of the antenna in a non-working state through the folding design of the antenna structure, significantly improves the convenience of transportation and installation, and has the beneficial effects of being foldable and convenient to transport and install.

Description

Technical Field

[0001] This invention relates to the field of non-frequency-varying antenna technology, specifically to a portable soft-oscillator log-periodic antenna. Background Technology

[0002] Log-periodic antennas, as high-performance broadband antennas, possess significant advantages such as wide bandwidth, high gain, and good directivity, and are widely used in many fields across multiple wavebands, including shortwave, VHF, and microwave. Currently, the log-periodic dipole antenna is the most widely used form of log-periodic antenna.

[0003] However, existing log-periodic antennas, due to their inherent design characteristics—that is, the length of a single element increases linearly with the wavelength at its operating frequency (lower operating frequency, longer wavelength, and therefore longer single element)—directly result in a large envelope space. This large envelope space causes significant inconvenience during actual transportation and installation. For example, it requires more space during transport, increasing transportation costs, and significantly increases installation difficulty in space-constrained environments such as vehicle-mounted, ship-mounted, or confined spaces.

[0004] Therefore, there is an urgent need to improve the existing log-periodic antenna structure to enhance its portability and meet the growing practical application requirements. Summary of the Invention

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

[0006] This invention is achieved through the following technical solution:

[0007] This invention provides a portable soft-electron log-periodic antenna, which includes an antenna main rod, a folding support rod, and a winding mechanism.

[0008] The folding support rod is hinged to the antenna main rod. A side suspension line connects the folding support rod and the antenna main rod at the ends away from the hinge. The winding mechanism is connected to the folding support rod and includes a tightening rope connected to the folding support rod. The tightening rope and the side suspension line apply rotational forces to the folding support rod in different directions.

[0009] The antenna main rod is equipped with a flexible vibrator connected to the side suspension line.

[0010] In the aforementioned technical solution, the hinged design of the folding support rod and the antenna main rod, along with the foldable characteristics of the soft vibrator, allows the antenna to be folded significantly in its non-operating state, greatly reducing the envelope space and facilitating transportation and installation. For example, in vehicle-mounted communication systems, the antenna can be folded and stored while the vehicle is in motion, and quickly unfolded for use upon arrival at the destination, greatly improving ease of use. Furthermore, the counterforce applied to the folding support rod by the side suspension line and tightening rope ensures the structural stability of the antenna in its unfolded operating state.

[0011] Furthermore, in this invention, a fixed base is provided at the bottom end of the antenna main rod, and the winding mechanism and the folding support rod are both connected to the fixed base.

[0012] Furthermore, in this invention, the aforementioned winding mechanism includes a mounting base connected to the fixed base, the mounting base being rotatably connected to a rotating shaft, the tightening rope being wound around the rotating shaft, and the rotating shaft being provided with a driving component and a locking component.

[0013] Furthermore, in this invention, the locking member described above includes a locking ratchet fixedly connected to the rotating shaft, and the locking member also includes a curved handle rotatably connected to the mounting base, the curved handle being provided with a pawl that cooperates with the locking ratchet.

[0014] Furthermore, in this invention, the aforementioned driving component includes a driving ratchet fixedly connected to the rotating shaft, the orientation of which is opposite to that of the locking ratchet. The driving component also includes a driving handle rotatably connected to the mounting base, the driving handle being provided with actuating teeth that cooperate with the driving ratchet.

[0015] Furthermore, in this invention, the aforementioned mounting base is connected to an extension arm aligned with the antenna main rod, and the extension arm is provided with a groove for the tightening rope to pass through.

[0016] Furthermore, in this invention, the aforementioned soft vibrator includes a vibrator body, the vibrator body being provided with a connector for connecting to the antenna main rod, and the vibrator body being provided with an elastic rope for connecting to the side suspension line.

[0017] Furthermore, in this invention, the aforementioned side suspension line is provided with a fixing member, the two ends of the fixing member are hinged with a connector that connects to the side suspension line, and the middle of the fixing member is provided with a through hole that connects to the elastic rope.

[0018] Furthermore, in this invention, the length of the aforementioned connector is greater than the length of the elastic rope.

[0019] Furthermore, in this invention, the antenna main rod described above is provided with a rigid vibrator, which is located on the antenna main rod above the soft vibrator. A triangular fixing frame is provided on the top side of the antenna main rod, and a second connector connected to the side suspension line is hinged to the top of the triangular fixing frame. A third connector connected to the side suspension line is hinged to the top of the folding support rod.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] Significantly improved portability: Through the cooperation of the folding support rod and the winding mechanism, the antenna can be quickly folded and stored, greatly reducing the overall size of the antenna, making it easier to transport and carry, and meeting the requirements for antenna portability in different scenarios.

[0022] Easy installation: When unfolding the antenna, simply operate the drive mechanism of the winding mechanism to quickly unfold the folding support rod. At the same time, the soft and hard vibrators will also unfold automatically. There are no complicated installation steps, which reduces the difficulty of installation and improves the efficiency of installation.

[0023] 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 and triangular fixing frame, give the antenna good stability in the deployed state. It can resist a certain amount of wind and external interference, ensuring the normal operation of the antenna. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0025] Figure 1 This is a schematic diagram of a portable soft vibrator log-periodic antenna according to the present invention;

[0026] Figure 2 This is a schematic diagram of the triangular fixing bracket of the present invention;

[0027] Figure 3 This is a schematic diagram of the fastener of the present invention;

[0028] Figure 4 This is a schematic diagram of the fixed base and winding mechanism of the present invention;

[0029] Figure 5 This is an internal schematic diagram of the winding mechanism of the present invention;

[0030] Figure 6 This is a front view of the locking member of the present invention;

[0031] Figure 7 This is a front view of the driving component of the present invention.

[0032] The attached diagram shows the markings and corresponding component names: 1-Antenna main mast, 2-Folding support rod, 3-Side suspension line, 4-Rewinding mechanism, 401-Mounting base, 402-Rotating shaft, 403-Extension arm, 4031-Wire groove, 5-Tightening rope, 6-Soft vibrator, 601-Vibrator body, 602-Connector, 603-Elastic rope, 7-Fixed base, 8-Triangular fixing bracket, 801-Connector 2, 9-Fixing component, 901-Connector 1, 902-Through hole, 903-Elastic rope, 10-Hard vibrator, 11-Drive component, 1101-Drive ratchet, 1102-Drive handle, 1103-Actuating tooth, 12-Locking component, 1201-Locking ratchet, 1202-Bending handle, 1203-Pawl, 13-Hinge. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are for explanation only and are not intended to limit the invention. The following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items. 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 explicitly specified and limited, the terms "set," "install," and "connect" 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 invention according to the specific circumstances.

[0035] Example 1

[0036] Combination Figures 1 to 7 As shown, this is a portable soft dipole log-periodic antenna in Embodiment 1 of the present invention, and its specific structure is described below.

[0037] like Figure 1The portable soft-vibrator log-periodic antenna shown in this embodiment mainly consists of an antenna main rod 1, a folding support rod 2, a winding mechanism 4, a side suspension wire 3, and a soft vibrator 6. The antenna main rod 1 is the main support structure of the entire antenna, and a fixed base 7 is fixedly installed at its bottom. The bottom of the fixed base 7 is provided with multiple mounting holes, and the antenna can be fixed to the ground, vehicle platform, or other mounting carrier by bolts.

[0038] Furthermore, in combination Figure 1 and Figure 2 As shown, multiple rigid vibrators 10 and multiple flexible vibrators 6 are arranged sequentially from top to bottom on the antenna main rod 1, with the rigid vibrators 10 positioned above the flexible vibrators 6. The rigid vibrators 10 are made of metal and have high rigidity, used to improve the antenna's signal reception and transmission performance in the high-frequency band. The flexible vibrators 6 consist 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. The connector 602 is a conductive metal wire. One end of the connector 602 is fixed to the antenna main rod 1, and the other end of the connector 602 is connected to the vibrator body 601. The end of the flexible vibrator 6 furthest from the connector 602 is connected to a fixing member 9 on the side suspension line 3.

[0039] In this embodiment, combined with Figure 1 and Figure 4 As shown, a fixed base 7 is installed at the bottom of the antenna main rod 1. One end of the folding support rod 2 is hinged to the fixed base 7 via a hinge shaft, allowing the folding support rod 2 to rotate freely around the hinge shaft. A side suspension wire 3 is connected to the end of the folding support rod 2 and the antenna main rod 1 furthest from the hinge shaft.

[0040] Furthermore, the side suspension line 3 uses high-strength flexible stainless steel wire rope, combined with... Figure 1 As shown, in this embodiment 1, the side suspension line 3 is divided into multiple segments, and two segments of the side suspension line 3 are connected by a fixing member 9. A connector 901 is hinged to each end of the fixing member 9, and the connector 901 is used to connect to the end of the side suspension line 3. A through hole 902 is formed in the center of the fixing member 9, and the through hole 902 is used to connect the elastic rope 603 of the soft vibrator 6, ensuring that the soft vibrator 6 is in a straight state.

[0041] Combination Figure 1 and Figure 2 As shown, triangular fixing brackets 8 are installed on the upper and lower sides of the top of the antenna main rod 1, respectively. The top of the triangular fixing bracket 8 is hinged with a connector 801 for connecting to the end of the side suspension wire 3. Similarly, a connector 3 is hinged to the top of the folding support rod 2, which is also used for connecting to the end of the side suspension wire 3.

[0042] Combination Figure 1 and Figure 4As shown, in this embodiment, the winding mechanism 4 is mounted on the fixed base 7. The winding mechanism 4 includes a mounting base 401 and a rotating shaft 402. A driving component 11 and a locking component 12 are mounted on the rotating shaft 402.

[0043] Mounting bracket 401 is a metal support structure that can be fixed to the fixed base 7 with bolts or movably connected via hinge 13. Figure 4 and Figure 5 As shown, a bearing is installed inside the mounting base 401, and both ends of the rotating shaft 402 are connected to the bearing. The tightening rope 5 is wound around the rotating shaft 402. The mounting base 401 is also equipped with an extension arm 403, which has a wire groove 4031. One end of the tightening rope 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.

[0044] Furthermore, combining Figure 5 , Figure 6 and Figure 7 As shown, the drive ratchet 1101 of the drive component 11 is fixedly connected to the rotating shaft 402 via a key and keyway, and the locking ratchet 1201 of the locking component 12 is also fixedly connected to the rotating shaft 402 via a key and keyway. Figure 6 The bent shank 1202 is approximately V-shaped. Its left end is rotatably connected to the mounting base 401 via a pin. A pawl 1203 is located at the bottom of the left side of the bent shank 1202, tilting downwards and to the left. The locking ratchet 1201 and pawl 1203 engage to ensure… Figure 6 The locking ratchet 1201 can only rotate clockwise and cannot rotate counterclockwise.

[0045] like Figure 5 and Figure 7 As shown, the drive handle 1102 is also approximately V-shaped, rotatably connected to the mounting base 401 via a pivot. The actuating tooth 1103 on the right side of the drive handle 1102 is inclined upwards and to the right, allowing it to engage with the drive ratchet 1101. Since the orientation of the teeth of the locking ratchet 1201 is opposite to that of the locking ratchet 1201, as... Figure 7 By grasping the drive handle 1102 and lifting it upwards, the drive ratchet 1101 and the rotating shaft 402 can be rotated counterclockwise, gradually tightening the tightening rope 5, thus changing the position. Figure 6 When the rotating shaft 402 rotates clockwise, the pawl 1203 engages with the locking ratchet 1201 to prevent the rotating shaft 402 from reversing and causing the tightening rope 5 to loosen.

[0046] It should be noted that, as Figure 1As shown, the side of the mounting base 401 and the side of the fixed base 7 are connected by a hinge 13, allowing the winding mechanism 4 to rotate from the end of the antenna main rod 1 to be flush with the side of the antenna main rod 1, further improving the folding effect. When unfolded, the winding mechanism 4 can rotate from the side of the antenna main rod 1 to be flush with the end face of the antenna main rod 1, and then the mounting base 401 and the fixed base 7 are fixedly connected by screws.

[0047] During installation and use, first, fix the mounting base 7 to the desired installation position using bolts. Then, grasp the drive handle 1102 and rotate it. The actuating teeth 1103 on the drive handle 1102 drive the drive ratchet 1101 to rotate, which in turn causes the rotating shaft 402 to rotate, and the tightening rope 5 begins to wind up. As the tightening rope 5 winds up, the folding support rod 2 gradually unfolds around the hinge axis under the tension of the tightening rope 5, and the side suspension line 3 is also tightened accordingly. After unfolding, the side suspension line 3 and the tightening rope 51 exert rotational forces on the folding support rod 2 in different directions. Through the interaction of these forces, the structural stability of the antenna after unfolding is ensured. When the folding support rod 2 unfolds 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 extends to the working state, the hard vibrator 10 is also in the normal working position, and the antenna can be put into use.

[0048] Example 2

[0049] In this embodiment, the connection structure between the side suspension wire 3 and the flexible vibrator 6 has been further optimized. A flexible insulating protective sleeve is provided on the surface of the vibrator body 601 of the flexible vibrator 6. The protective sleeve is made of silicone rubber, which has good insulation performance and flexibility, effectively protecting the vibrator body 601 from external environmental corrosion and extending the service life of the flexible vibrator 6. Meanwhile, the elastic cord 603 can be directly made of spring, allowing it to quickly return to its initial state when the antenna is retracted, facilitating use.

[0050] Example 3

[0051] This embodiment improves the driving method of the winding mechanism 4. An electric motor and a reducer can be externally mounted on the mounting base 401. The output shaft of the reducer is connected to the protruding end of the rotating shaft 402 via a transmission connection (e.g., chain drive or gear drive). The rotating shaft 402 can be electrically driven via a remote control or control switch.

[0052] In addition, a tension sensor (not shown in the figure) is also provided on the extension arm 403 of the winding mechanism 4. The tension sensor is connected to the control system of the electric motor. The tightening rope 5 passes around the tension sensor and enters the wire groove 4031. When the tension of the tightening rope 5 exceeds the preset value, the tension sensor transmits a signal to the control system, and the control system automatically controls the electric motor to stop rotating to prevent damage to the antenna components due to excessive tension.

[0053] In summary, this invention provides a portable soft-electron log-periodic antenna, comprising an antenna main rod 1, a folding support rod 2, and a winding mechanism 4. The folding support rod 2 is hinged to the antenna main rod 1, and a side suspension line 3 is provided connecting the folding support rod 2 and the antenna main rod 1 at the end away from the hinge. The winding mechanism 4 is connected to the folding support rod 2 and 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 rod 1 is provided with a soft vibrator 6 connected to the side suspension line 3. A fixed base 7 is provided at the bottom end of the antenna main rod 1, and the winding mechanism 4 and the folding support rod 2 are both connected to the fixed base 7. The winding mechanism 4 includes a mounting base 401 connected to the fixed base 7, and a rotating shaft 402 is rotatably connected to the mounting base 401. The tightening rope 5 is wound around the rotating shaft 402, and the rotating shaft 402 is provided with a driving component 11 and a locking component 12. The locking member 12 includes a locking ratchet 1201 fixedly connected to the rotating shaft 402, and 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 orientation of the driving ratchet 1101 is opposite to that of 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 pawl 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 groove 4031 for the tensioning rope 5 to pass through. The soft vibrator 6 includes a vibrator body 601, which is provided with a connector 602 for connecting to the antenna main rod 1, and an elastic rope 603 for connecting to the side suspension line 3. The side suspension line 3 is provided with a fixing member 9, with connectors 901 hinged at both ends for connecting to the side suspension line 3, and a through hole 902 in the middle for connecting to the elastic rope 603. The length of the connector 602 is greater than the length of the elastic rope 603. The antenna main rod 1 is provided with a hard vibrator 10, which is located on the antenna main rod 1 above the soft vibrator 6. A triangular fixing frame 8 is provided on the top side of the antenna main rod 1, with connector 801 hinged at the top of the triangular fixing frame 8 for connecting to the side suspension line 3, and connector 3 is hinged at the top of the folding support rod 2 for connecting to the side suspension line 3.

[0054] Therefore, the portable soft vibrator log-periodic antenna of the present invention effectively reduces the size of the antenna in the non-operating state, and significantly improves its convenience of transportation and installation.

[0055] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment 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 within the scope of protection of the present invention.

Claims

1. A portable soft-electron log-periodic antenna, characterized in that, It includes the antenna main rod (1), the folding support rod (2), and the winding mechanism (4). The folding support rod (2) is hinged to the antenna main rod (1). A side suspension line (3) is provided at the end of the folding support rod (2) and the antenna main rod (1) away from the hinge. The winding mechanism (4) is connected to the folding support rod (2). The winding 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 rotational forces to the folding support rod (2) in different directions. The antenna main rod (1) is equipped with a soft vibrator (6) connected to the side suspension line (3). The side suspension line (3) is connected to the top of the folding support rod (2), the tightening rope (5) is connected to the folding support rod (2), and the winding mechanism (4) controls the unfolding and folding of the folding support rod (2) by winding and unwinding the tightening rope (5).

2. The portable soft dipole log-periodic antenna according to claim 1, characterized in that, The antenna main rod (1) is provided with a fixed base (7) at its bottom end. The winding mechanism (4) and the folding support rod (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) 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 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) includes a locking ratchet (1201) fixedly connected to the rotating shaft (402), and the locking member (12) also includes a curved handle (1202) rotatably connected to the mounting base (401), the curved handle (1202) being provided with a pawl (1203) that cooperates with the locking ratchet (1201).

5. The portable soft-electron log-periodic antenna according to claim 4, characterized in that, The drive member (11) includes a drive ratchet (1101) fixedly connected to the rotating shaft (402), the drive ratchet (1101) being oriented opposite to the locking ratchet (1201), and the drive member (11) also includes a drive handle (1102) rotatably connected to the mounting base (401), the drive handle (1102) being provided with a moving tooth (1103) that cooperates with the drive ratchet (1101).

6. The portable soft-electron log-periodic antenna according to claim 5, characterized in that, The mounting base (401) is connected to an extension arm (403) aligned with the antenna main rod (1), and the extension arm (403) is provided with a groove (4031) through which the tightening rope (5) passes.

7. The portable soft dipole log-periodic antenna according to claim 1, characterized in that, The soft vibrator (6) includes a vibrator body (601), the vibrator body (601) is provided with a connector (602) connected to the antenna main rod (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 member (9), and the two ends of the fixing member (9) are hinged with a connector (901) that connects to the side suspension line (3). The middle of the fixing member (9) is provided with a through hole (902) that connects to the elastic rope (603).

9. The portable soft dipole log-periodic antenna according to claim 8, characterized in that, The length of the connector (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 1-9, characterized in that, The antenna main rod (1) is provided with a hard vibrator (10), which is located on the antenna main rod (1) above the soft vibrator (6). A triangular fixing frame (8) is provided on the top side of the antenna main rod (1). The top of the triangular fixing frame (8) is hinged to a connector two (801) that connects to the side suspension line (3). The top of the folding support rod (2) is hinged to a connector three that connects to the side suspension line (3).

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