Two-dimensional fan-shaped maneuverability broadband antenna

Abstract

The utility model discloses a two-dimensional fan-shaped maneuverability broadband antenna, which comprises an antenna surface assembly, the antenna surface assembly is a fan-shaped structure formed by seven oscillator lines and fan-shaped oscillators, the antenna surface assemblies are coplanar, the plane where the antenna surface assemblies are located is perpendicular to the ground, the top ends of the antenna surface assemblies are connected with the top end of a support rod assembly, and the support rod assembly is connected with the antenna surface assembly. The two ends of the fan-shaped oscillator are connected with the ground through side cables, and the oscillator feed end of the antenna surface assembly is connected with an impedance matcher on the ground through a cable-stayed lower lead. According to the utility model, the lifting support rod is lifted to a preset position, the support rod stay wire and the stay wire ground nail are fixed to complete antenna erection, the support rod stay wire is loosened when the antenna is disassembled and folded, the lifting support rod is folded, and then the jumper wire, the lower lead wire and the antenna surface are taken down in sequence and then are stored in respective storage bins. The antenna gain performance is guaranteed, the problems of complex antenna structure and inconvenient installation and erection are solved, and the defects that a traditional fixed station is large in occupied area and cannot be flexibly used are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of shortwave antennas, in particular to a two-dimensional sector-shaped mobile broadband antenna. Background Art

[0002] In shortwave communications, 6-30MHz shortwave transmitting antennas have the characteristics of large footprint, heavy weight, and inconvenient installation, so their application conditions are very limited. At present, the shortwave antennas that are widely used in China are all fixed. Some shortwave antennas have reduced size, but they need to be used with antenna tuning equipment. In a mobile combat environment, fixed antennas have certain limitations and cannot meet the requirements of mobility, transportation, and easy disassembly and assembly.

[0003] The development of shortwave sector antennas has been relatively mature, but the shortwave antennas currently in use are large in size, complex in structure, heavy in weight, occupy a large area, and are mostly installed at fixed stations, requiring a large amount of work to install, erect, and dismantle.

[0004] There is currently no effective solution to the above problems. Utility Model Content

[0005] In view of the above-mentioned technical problems in the related technology, the utility model proposes a 3D fan-shaped mobile broadband antenna, which makes up for the shortcomings of fixed stations and realizes the mobile installation requirements of the antenna while ensuring performance indicators such as gain and power resistance, and can overcome the above-mentioned shortcomings of the prior art.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0007] A two-dimensional fan-shaped mobile broadband antenna comprises an antenna surface assembly, wherein the antenna surface assembly is a fan-shaped structure composed of seven dipole wires and fan-shaped dipoles, the antenna surface assemblies are coplanar and the plane in which they are located is perpendicular to the ground, the top end of the antenna surface assembly is connected to the top end of a support rod assembly, the two ends of the fan-shaped dipoles are connected to the ground through side cables, and the dipole feeding end of the antenna surface assembly is connected to an impedance matcher on the ground through an obliquely pulled lower lead; the support rod assembly adopts a hand-cranked lifting support rod, the support rod assembly stands vertically on the ground, and the support rod assembly is fixedly connected to the ground through a support rod pull wire.

[0008] Furthermore, the ends of the fan-shaped vibrator and the ends of the vibrator wire are crimped to the side rope via a stainless steel tee, the side rope connecting to the ground is provided with a heart-shaped ring and a safety buckle, and the vibrator wire located at the edge is fixedly connected to the heart-shaped ring via the steel pressing sleeve.

[0009] Furthermore, the side rope is connected to the ground through a wire clamping plate and a ground nail.

[0010] Furthermore, the support rod assembly includes a support rod, the bottom end of which is provided with a fixing device of a cross-shaped structure, the end point of each of the fixing devices is provided with a herringbone reinforcement connected to the upper part of the bottom end of the support rod, and the end point of each of the fixing devices is fixedly connected to the ground through a second ground nail; a hand-cranked winch is provided in the middle part of the support rod, and a plurality of sleeved lifting rods are provided on the upper part of the support rod, and a lifting rod top plate is provided on the top of the lifting rod located at the uppermost end.

[0011] Furthermore, when in use, the top of the corresponding lifting rod is connected to the ground through the support rod pull line.

[0012] Furthermore, the support rod pull line includes a pull rope, one end of which is provided with a safety buckle four and a heart-shaped ring two, and the other end of the pull rope is connected to the ground through a wire clamping plate two and a tent nail.

[0013] Furthermore, the top end of the antenna surface assembly is connected to the top plate of the lifting rod through a second safety buckle.

[0014] Furthermore, the end of the lower lead is fixedly connected to the impedance matcher via a safety buckle three, the lower lead is also connected to the butterfly nut of the impedance matcher via a matcher jumper, and the impedance matcher is fixedly connected to the ground via a ground nail.

[0015] The beneficial effects of the utility model: the utility model completes the antenna installation by lifting the lifting support rod to a predetermined position and fixing the support rod pull wire and the pull wire ground nail. When the antenna is disassembled and folded, the support rod pull wire is loosened, the lifting support rod is folded, and then the jumper wire, lower lead wire, and antenna surface are removed in sequence and stored in their respective storage bins. The use and disassembly are very convenient, the layout is more compact and reasonable, the antenna structure and footprint are smaller, the weight is reduced, and the antenna gain performance is ensured while solving the problems of complex antenna structure and inconvenient installation and erection, which makes up for the defects of traditional fixed stations such as large footprint and inability to be used flexibly, and has great practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0018] Figure 2The two-dimensional fan-shaped mobile broadband antenna according to the embodiment of the utility model Figure 1 A top view of

[0019] Figure 3 It is a schematic diagram of the support rod structure of the two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the connection of the supporting rods and wires of the two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the lifting rod cable of the two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the connection between the antenna surface assembly and the lifting rod of the two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of fixing the antenna surface assembly of the two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0024] Figure 8 It is a schematic diagram of the connection between the fan-shaped oscillator and the oscillator line of the two-dimensional fan-shaped mobile broadband antenna according to the embodiment of the utility model;

[0025] Fig. 9 It is a schematic diagram of the fixed connection of the lower lead of the two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0026] Fig.10 It is a schematic diagram of an impedance matching device jumper for installing a two-dimensional sector-shaped mobile broadband antenna according to an embodiment of the utility model;

[0027] Fig.11 1 is a schematic diagram of the antenna standing wave ratio curve of the two-dimensional sector-shaped mobile broadband antenna according to the embodiment of the utility model; wherein curve 11A is the standing wave ratio index of the conventionally designed antenna, and curve 11B is the standing wave ratio index of the antenna designed by the utility model;

[0028] In the figure: 1. Antenna surface assembly; 2. Support rod assembly; 3. Lower lead; 4. Impedance matcher; 5. Support rod pull wire; 101. Diopter wire; 102. Fan-shaped diopter; 103. Stainless steel tee; 104. Heart ring one; 105. Safety buckle one; 106. Steel pressure sleeve; 107. Wire clamping plate one; 108. Ground nail one; 109. Safety buckle two; 110. Side rope; 201. Herringbone tendon; 202. Ground nail two; 203. Hand winch; 204. Lifting rod; 205. Lifting rod top plate; 301. Safety buckle three; 401. Matcher jumper; 402. Butterfly nut; 501. Pull rope; 502. Safety buckle four; 503. Heart ring two; 504. Wire clamping plate two; 505. Tent nail. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0030] The two-dimensional sector-shaped mobile broadband antenna has the following advantages: good gain performance, high power resistance performance, small footprint, light weight, convenient and quick installation and disassembly, strong mobility, and easy mass production.

[0031] like Figure 1-10 As shown, a two-dimensional fan-shaped mobile broadband antenna according to an embodiment of the utility model includes an antenna surface assembly 1, wherein the antenna surface assembly 1 is a fan-shaped structure composed of seven dipole wires 101 and a fan-shaped dipole 102, the antenna surface assembly 1 is coplanar and the plane in which it is located is perpendicular to the ground, the top of the antenna surface assembly 1 is connected to the top of the support rod assembly 2, the two ends of the fan-shaped dipole 102 are connected to the ground through side cables 110, and the dipole feeding end of the antenna surface assembly 1 is connected to the impedance matcher 4 on the ground through an oblique lower lead 3; the support rod assembly 2 adopts a hand-cranked lifting support rod, the support rod assembly 2 stands vertically on the ground, and the support rod assembly 2 is fixedly connected to the ground through a support rod pull wire 5.

[0032] like Figure 7-8 As shown, the ends of the fan-shaped vibrator 102 and the ends of the vibrator wire 101 are crimped with the side cable 110 through a stainless steel tee 103. The side cable 110 is provided with a heart ring 104 and a safety buckle 105 at the end connected to the ground. The vibrator wire 101 at the edge is fixedly connected with the heart ring 104 through a steel pressing sleeve 106. The two ends of the side cable 110 are connected to the ground through a wire clamping plate 107 and a ground nail 108.

[0033] like Figure 3 As shown, the support rod assembly 2 includes a support rod, the bottom end of the support rod is provided with a cross-shaped fixing device, each end of the fixing device is provided with a herringbone rib 201 connected to the upper part of the bottom end of the support rod, and each end of the fixing device is fixedly connected to the ground through a ground nail 202; a hand-cranked winch 203 is provided in the middle of the support rod, and a plurality of sleeved lifting rods 204 are provided on the upper part of the support rod, and a lifting rod top plate 205 is provided on the top of the lifting rod 204 at the uppermost end. When in use, the top of the corresponding lifting rod 204 is connected to the ground through the support rod pull line 5.

[0034] like Figure 4-5 As shown, the support rod pull line 5 includes a pull rope 501, one end of which is provided with a safety buckle 4 502 and a heart-shaped ring 2 503, and the other end of the pull rope 501 is connected to the ground through a wire clamping plate 2 504 and a tent nail 505.

[0035] like Figure 6 As shown, the top end of the antenna surface assembly 1 is connected to the lifting rod top plate 205 via a safety buckle 109 .

[0036] like Figure 9-10 As shown, the end of the lower lead 3 is fixedly connected to the impedance matcher 4 through a safety buckle 301, and the lower lead 3 is also connected to the butterfly nut 402 of the impedance matcher 4 through a matcher jumper 401, and the impedance matcher 4 is fixedly connected to the ground through a ground nail.

[0037] In order to facilitate understanding of the above technical solution of the present invention, the above technical solution of the present invention is described in detail below through specific usage.

[0038] In specific use, according to the two-dimensional fan-shaped mobile broadband antenna described in the utility model, after the antenna is erected, the overall oscillator is widened by 65m, the antenna is erected at a height of 13.5m, and the oscillator line 101 and the lower lead 3 are made of stainless steel rope or soft copper wire, which can be selected according to power requirements. The entire antenna of the utility model is composed of four parts. It includes a set of hand-cranked lifting support rod assembly 2, a pair of antenna surface assembly 1, a set of lower lead 3, and an impedance matcher 4. When the antenna is unfolded, it is first positioned by a tape measure to determine the position of the lifting rod, the position of the side rope ground nail, the position of the wire ground nail, etc., and then the antenna surface assembly 2 and the lower lead 3 are fixed to the position of the lifting support rod through the quick-release safety buckle, and then the matching device jumper 401 is accurately crimped according to the mark, and the support rod is slowly raised. When the lifting rod 204 is lifted to the predetermined position, the support rod pull wire 5 is fixed to the wire ground nail to complete the antenna erection. The antenna can meet the use of the erection environment with a wind force of less than 10 levels. When disassembling the antenna, first loosen the support rod pull wire 5, slowly retract the lifting support rod, remove the matching device jumper 401, the lower lead 3, and the antenna surface assembly 1 in order, and then store them in their respective storage compartments.

[0039] The operating frequency of the two-dimensional fan-shaped mobile antenna is 6-30MHz, and the power it can withstand is ≥5KW; the two-dimensional fan-shaped mobile antenna is designed to realize the integrated design of each component of the antenna and the quick disassembly and assembly design, meeting the requirements of quick disassembly and assembly for mobility. The vibrators of the two-dimensional fan-shaped mobile antenna are arranged in the same plane and the plane where the vibrators are located is perpendicular to the ground, realizing a smaller installation area requirement.

[0040] The integrated design and quick disassembly and assembly design of the two-dimensional sector-shaped mobile antenna include the structural designs of the antenna surface assembly 1, the support rod assembly 2 and the impedance matcher 4.

[0041] The utility model adopts the following technical scheme: a two-dimensional fan-shaped mobile antenna module design, and the modules are fixed by a quick-release method.

[0042] The effects achieved by the utility model are as follows: (1) The antenna working range is 6-30MHz, which solves the mobility problem of the antenna. The typical gain of the antenna in the full frequency band is ≥5dB; (2) The structural design is optimized, and the volume of the antenna after folding is 4m*1m*1m; (3) The disassembly and assembly time of the antenna is within 60 minutes for 2 people; (5) The optimized antenna structure is smaller, occupies a smaller area, has a more compact and reasonable layout, and is lighter, meeting the mobility requirements.

[0043] The utility model has good electrical performance. Compared with conventional portable antennas, the electrical indicators of the utility model have not changed much after optimizing the structural layout and structural flexibility. Curve 11A is the standing wave ratio indicator of the conventional design antenna. Curve 11B is the standing wave ratio indicator of the antenna designed by the utility model. According to the indicators, the utility model realizes the structural functions of antenna mobility, small footprint, strong power resistance, etc. without changing the performance of the antenna. The matching standing wave can still meet the use requirements of the transmitter well.

[0044] To sum up, with the help of the above-mentioned technical scheme of the utility model, the antenna is erected by lifting the lifting support rod to a predetermined position and fixing the support rod pull wire and the pull wire ground nail. When the antenna is disassembled and folded, the support rod pull wire is loosened, the lifting support rod is folded, and then the jumper wire, lower lead, and antenna surface are removed in sequence and stored in their respective storage bins. The disassembly and assembling are very convenient, the layout is more compact and reasonable, the antenna structure and footprint are smaller, the weight is reduced, and the antenna gain performance is ensured while solving the problems of complex antenna structure and inconvenient installation and erection, which makes up for the defects of traditional fixed stations such as large footprint and inability to be used flexibly, and has great practical significance.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-dimensional sector-shaped mobile broadband antenna, characterized in that: The invention comprises an antenna surface assembly (1), wherein the antenna surface assembly (1) is a fan-shaped structure composed of seven dipole wires (101) and fan-shaped dipoles (102); the antenna surface assembly (1) is coplanar and the plane in which it is located is perpendicular to the ground; the top of the antenna surface assembly (1) is connected to the top of a support rod assembly (2); the two ends of the fan-shaped dipole (102) are connected to the ground via side cables (110); the dipole feeding end of the antenna surface assembly (1) is connected to an impedance matcher (4) on the ground via an obliquely pulled lower lead (3); the support rod assembly (2) adopts a hand-cranked lifting support rod; the support rod assembly (2) stands vertically on the ground; and the support rod assembly (2) is fixedly connected to the ground via a support rod tension wire (5).

2. The two-dimensional sector-shaped mobile broadband antenna according to claim 1, characterized in that: The ends of the fan-shaped vibrator (102) and the ends of the vibrator wire (101) are crimped to the side rope (110) via a stainless steel tee (103); a heart-shaped ring (104) and a safety buckle (105) are provided at the end of the side rope (110) connected to the ground; the vibrator wire (101) located at the side is fixedly connected to the heart-shaped ring (104) via a steel pressing sleeve (106).

3. The two-dimensional sector-shaped mobile broadband antenna according to claim 1, characterized in that: The side rope (110) is connected to the ground via a clamping plate (107) and a ground nail (108).

4. The two-dimensional sector-shaped mobile broadband antenna according to claim 1, characterized in that: The support rod assembly (2) comprises a support rod, the bottom end of which is provided with a cross-shaped fixing device, the end point of each fixing device is provided with a herringbone rib (201) connected to the upper part of the bottom end of the support rod, and the end point of each fixing device is fixedly connected to the ground via a second ground nail (202); a hand-cranked winch (203) is provided in the middle of the support rod, and a plurality of sleeved lifting rods (204) are provided on the upper part of the support rod, and a lifting rod top plate (205) is provided at the top end of the lifting rod (204) located at the uppermost end.

5. The two-dimensional sector-shaped mobile broadband antenna according to claim 4, characterized in that: When in use, the top of the corresponding lifting rod (204) is connected to the ground via the support rod pull wire (5).

6. The two-dimensional sector-shaped mobile broadband antenna according to claim 5, characterized in that: The support rod pull line (5) comprises a pull rope (501), one end of which is provided with a fourth safety buckle (502) and a second heart-shaped ring (503), and the other end of the pull rope (501) is connected to the ground via a second clamping plate (504) and a tent peg (505).

7. The two-dimensional sector-shaped mobile broadband antenna according to claim 4, characterized in that: The top end of the antenna surface assembly (1) is connected to the lifting rod top plate (205) via a second safety buckle (109).

8. The two-dimensional sector-shaped mobile broadband antenna according to claim 1, characterized in that: The end of the lower lead (3) is fixedly connected to the impedance matcher (4) via a safety buckle (301); the lower lead (3) is also connected to a butterfly nut (402) of the impedance matcher (4) via a matcher jumper (401); and the impedance matcher (4) is fixedly connected to the ground via a ground nail.

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