A two-stage close-in coverage antenna

Abstract

The utility model discloses a two-stage close-range covering antenna, including absorption load, radiating unit, support plate, fixed rod body, cable, fixed structural member, fixing, fixed hoop, vertical fixed rod, fixed rod, and fixed hoop fixedly is equipped with on fixed rod body, and support plate is set up on fixed rod body, and the number of radiating unit is two, and matching network is set up on the upper end of vertical fixed rod, and absorption load is set up above matching network, and radiating unit is vertically fixed on fixed rod through fixed structural member. The utility model discloses a HCAHY (YZ) -50-9, 1 / 2 inch super-soft cable is used, and is connected matching network, and the radiating unit of matching network is connected antenna, and finally connects 900 omega 200W absorption load. The radiating unit of antenna is perpendicular to ground, and is fixed in fixed rod body 20m~40m place through fixing. Radiating unit is made with RVVZ1*4.0mm 2 Copper stranded wire.

Description

Technical Field

[0001] This utility model relates to antenna technology, specifically to a two-stage short-range coverage antenna. Background Technology

[0002] An antenna is a transducer that converts guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or vice versa. It is a component used in radio systems to transmit or receive electromagnetic waves. Antennas primarily perform energy radiation / reception within a specific distance and range; in some communication environments, close-range coverage is required.

[0003] In view of the above situation, this utility model provides a two-stage short-range coverage antenna that is portable and easy to install. Utility Model Content

[0004] This invention provides a two-stage short-range coverage antenna that is portable and easy to install.

[0005] The purpose of this utility model is to provide a two-stage short-range coverage antenna, including an absorbing load, a radiating element, a support plate, a fixed rod, a cable, a fixed structure, a fixing element, a fixed clamp, a vertical fixed rod, and a fixed rod. The fixed clamp is fixedly sleeved on the fixed rod, and the support plate is set on the surface of the fixed clamp. There are two radiating elements. The matching network is set at the upper end of the vertical fixed rod, and the absorbing load is set above the matching network. The radiating elements are vertically fixed on the fixed rod by the fixed structure. A fixed sleeve is provided between the fixed rod and the fixed clamp. A torsion spring is sleeved on the outside of the fixed sleeve, and the torsion end of the torsion spring is fixed to the fixed clamp.

[0006] Furthermore, the support plate includes an upper support plate and a lower support plate, and the fixing clamp includes an upper fixing clamp and a lower fixing clamp.

[0007] Furthermore, the fixing rod includes an upper fixing rod and a lower fixing rod, one end of the upper fixing rod is connected to the upper fixing clamp, and one end of the lower fixing rod is connected to the lower fixing clamp.

[0008] Furthermore, the fasteners include an upper fastener and a lower fastener. One end of the upper fastener is connected to the upper support plate, and the other end is connected to the matching network. One end of the lower fastener is connected to the lower support plate, and the other end is connected to the vertical fixing rod.

[0009] This invention has the following advantages: It uses HCAHY(YZ)-50-9, 1 / 2-inch ultra-flexible cable to connect a matching network, which in turn connects to the antenna's radiating element, and finally to a 900Ω 200W absorbing load. The antenna's radiating element is perpendicular to the ground and fixed to a fixed pole at a distance of 20m to 40m using fasteners. The radiating element uses RVVZ1*4.0mm... 2 The antenna is made of copper stranded wire and uses a torsion spring to drive the clamp connection, which makes it easy to detach and install the antenna assembly from the fixed pole without the need for complicated bolt tightening process, greatly reducing the difficulty and time cost of installation and maintenance. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is an enlarged schematic diagram of point A in this utility model;

[0012] Figure 3 This is a schematic diagram of the matching network circuit of this utility model;

[0013] Figure 4 This is the antenna schematic diagram of this utility model;

[0014] Figure 5 This is an enlarged schematic diagram of section B of this utility model.

[0015] In the diagram: 1. Radiation unit; 2. Fixed rod; 3. Vertical fixed rod; 4. Matching network; 5. Load absorption; 6. Upper fixed clamp; 7. Lower fixed clamp; 8. Upper support plate; 9. Lower support plate; 10. Upper fixing component; 11. Lower fixing component; 12. Fixed structural component; 13. Lower fixed rod; 14. Upper fixed rod; 15. Torsion spring; 16. Fixed sleeve rod. Detailed Implementation

[0016] This utility model provides a two-stage short-range coverage antenna, including an absorbing load 5, radiating elements 1, a support plate, a fixed rod 2, a cable, a fixing structure 12, a fixing component, a fixing clamp, a vertical fixing rod 3, and a fixing rod. The fixing clamp is fixedly sleeved on the fixed rod 2, and the support plate is disposed on the surface of the fixing clamp. There are two radiating elements 1. A matching network 4 is disposed at the upper end of the vertical fixing rod 3, and the absorbing load 5 is disposed above the matching network 4. The radiating elements 1 are vertically fixed to the fixing rod by the fixing structure 12. A fixing sleeve 16 is provided between the fixing rod and the fixing clamp. A torsion spring 15 is sleeved on the outside of the fixed rod 16. The torsion end of the torsion spring 15 is fixed to the fixed clamp. The elastic potential of the torsion spring 15 can provide clamping force. When the clamp is sleeved on the fixed rod 2, the torsion spring 15 will be compressed or twisted, thereby generating a restoring force. This restoring force acts on the clamping arms of the clamp, causing them to automatically clamp the fixed rod 2. When disassembly is required, simply pull the clamp through the torsion spring 15 to open the clamp and remove it directly from the fixed rod 2. There is no need for a complicated bolt tightening process, which greatly reduces the difficulty and time cost of installation and maintenance.

[0017] In this embodiment, the support plate includes an upper support plate 8 and a lower support plate 9, and the fixing clamp includes an upper fixing clamp 6 and a lower fixing clamp 7.

[0018] In this embodiment, the fixing rod includes an upper fixing rod 14 and a lower fixing rod 13. One end of the upper fixing rod 14 is connected to the upper fixing clamp 6, and one end of the lower fixing rod 13 is connected to the lower fixing clamp 7.

[0019] In this embodiment, the fixing components include an upper fixing component 10 and a lower fixing component 11. One end of the upper fixing component 10 is connected to the upper support plate 8, and the other end is connected to the matching network 4. One end of the lower fixing component 11 is connected to the lower support plate 9, and the other end is connected to the vertical fixing rod 3.

[0020] In this embodiment, the radiating unit 1 adopts a two-line symmetrical dipole structure, a half-side oscillator basic structure, and is fed by a matching network 4 (LC network) in the middle.

[0021] In this embodiment, it is mainly used to adapt to a 200W shortwave transmitter, typically mounted at a height of 20m to 40m, using direct space wave transmission to achieve signal coverage of specific targets within a range of 500m to 1000m. It also features a convenient structure, easy installation, high operating efficiency, and stable reliability.

[0022] In this embodiment, the present invention uses an HCAHY(YZ)-50-9, 1 / 2-inch ultra-flexible cable to connect a matching network 4, which in turn connects to the antenna's radiating element 1, and finally to a 900Ω 200W absorbing load 5. The antenna's radiating element 1 is perpendicular to the ground and fixed to the fixed pole 2 at a distance of 20m to 40m using fasteners. The radiating element 1 uses RVVZ1*4.0mm... 2 Copper stranded wire is used for manufacturing.

[0023] Although specific embodiments of this utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A two-stage close range coverage antenna comprising an absorbing load, a cable, a radiating element, a support plate, a fixed rod body, a fixed structure, a fixing member, a fixing clamp, a vertical fixing rod, a fixing rod, characterized in that: The fixing clamp is fixedly sleeved on the fixing rod body, the support plate is set on the surface of the fixing clamp, there are two radiation units, the matching network is set at the upper end of the vertical fixing rod, the absorption load is set above the matching network, the radiation unit is vertically fixed on the fixing rod by a fixing structure, a fixing sleeve is set between the fixing rod and the fixing clamp, a torsion spring is sleeved on the outside of the fixing sleeve, and the torsion end of the torsion spring is fixed to the fixing clamp.

2. The two-stage short-range coverage antenna as described in claim 1, characterized in that: The support plate includes an upper support plate and a lower support plate, and the fixing clamp includes an upper fixing clamp and a lower fixing clamp.

3. A two-stage short-range coverage antenna as described in claim 1, characterized in that: The fixing rod includes an upper fixing rod and a lower fixing rod. One end of the upper fixing rod is connected to an upper fixing clamp, and one end of the lower fixing rod is connected to a lower fixing clamp.

4. A two-stage short-range coverage antenna as described in claim 1, characterized in that: The fasteners include an upper fastener and a lower fastener. One end of the upper fastener is connected to the upper support plate and the other end is connected to the matching network. One end of the lower fastener is connected to the lower support plate and the other end is connected to the vertical fixing rod.

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