Vehicle-mounted self-unfolding log-periodic antenna and using method

A log-periodic antenna, self-expanding technology, applied in log-periodic antennas, antennas, folded antennas, etc., can solve the problem of inconvenient disassembly of the log-periodic antenna

Active Publication Date: 2020-04-28
河南爱科瑞特电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a vehicle-mounted self-deploying logarithmic period antenna and its use method. The vibrator wire is automatically folded up when the antenna is folded through the automatic wire-receiving device. After

Method used

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  • Vehicle-mounted self-unfolding log-periodic antenna and using method
  • Vehicle-mounted self-unfolding log-periodic antenna and using method
  • Vehicle-mounted self-unfolding log-periodic antenna and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1-4 As shown, a vehicle-mounted self-deploying logarithmic periodic antenna includes a main truss 1 fixed in the middle of the lifting pole 2 and an upper beam 4 and a lower beam 5 respectively fixed at the upper and lower ends of the lifting pole 2 . Wherein the lifting rod 2 is a device fixed on the top of the communication vehicle for lifting the antenna, and the lifting rod 2 is a vertical multi-stage lifting rod.

[0037] Due to the bandwidth requirements of the antenna, the total length of the main truss is 12m. For the convenience of loading, therefore, in the present embodiment, the main truss 1 includes a truss fixed rod and two truss movable rods 101 for fixing on the elevating rod 2, and the truss The fixed rod includes two truss suspension rods 103 that are arranged perpendicular to the lifting rod 2 and cantilever to both sides of the lifting rod 2 in the horizontal direction, and a lifting rod hoop that connects the two truss suspension rod...

Embodiment 2

[0041] This embodiment is basically the same as Embodiment 1, the difference is: as Figure 5-6 As shown, considering that the upper beam 4 is at the top of the elevating rod 2, the automatic wire take-up device is not easy to connect to the power supply. Therefore, in this embodiment, the automatic wire take-up device 6 includes a wire take-up wheel body and is mounted on the center of the wire take-up wheel body. The take-up wheel shaft 604 at the position, and the take-up wheel shaft 604 can rotate coaxially relative to the take-up wheel body. The take-up reel wiring portion 602 of each take-up reel limiting portion 601, and the ring-shaped area surrounded by the take-up wheel limiting portion 601 and the take-up wheel wiring portion 602 forms a take-up space for accommodating the vibrator wire 3 . In this embodiment, since the take-up wheel body is rotated and the take-up wheel shaft 604 is fixed, the take-up wheel body can obtain a longer take-up length under the same pow...

Embodiment 3

[0043] This embodiment is basically the same as embodiment one or / and two, the difference is: as figure 1 with 7 As shown, the vibrator wire 3 includes an insulating pull rope 301 and a conductor 302 wrapped outside the insulating pull rope 301. The conductor 302 is a conductive copper mesh and an insulating sheath 303 coated on the outside of the conductor 302. The vibrator wire 3 One end of the insulating pull rope 301 is bound on the main truss 1, and the other end is fixed on the automatic wire take-up device 6. In addition, one end of the conductor 302 of the vibrator wire 3 is conductively connected with the corresponding feeding point on the main truss 1. Since the antenna is in Considering the electrical performance such as bandwidth, the end of the vibrator wire 3 away from the main truss 1 is provided with an extended vibrator 7, and the extended vibrator 7 is arranged parallel to the direction of the main truss 1, and the wiring part 602 of the take-up wheel is a ho...

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Abstract

The invention provides a vehicle-mounted self-unfolding log-periodic antenna. The antenna includes a supporting assembly, a main truss, an upper cross beam and a lower cross beam are arranged on the supporting assembly. The main truss is connected with the upper cross beam and the lower cross beam through oscillator lines; the supporting assembly comprises a lifting rod, the main truss comprises atruss fixing rod arranged in the middle of the lifting rod, at least one detachable truss movable rod is coaxially arranged at the overhanging end of the truss fixing rod, the upper cross beam and the lower cross beam are located on the portions, at the two sides of the truss fixing rod, of the lifting rod respectively, and the upper cross beam and/or the lower cross beam are/is provided with anautomatic take-up device/an automatic take-up device used for taking up vibrator wires. According to the antenna, the oscillator lines are automatically folded when the antenna is folded through the automatic take-up device, and the truss movable rod is disassembled after the lifting rod is lifted, so that the antenna is disassembled, and the problem that the vehicle-mounted short-wave log-periodic antenna is inconvenient to disassemble is solved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a vehicle-mounted self-deploying logarithmic period antenna and a method for using it. Background technique [0002] The logarithmic periodic antenna is a kind of non-frequency-variable antenna. It has good broadband characteristics and is widely used in broadband wireless transmission. In the short-wave band, the log-periodic antenna is currently the only one that can use a pair of antennas to work in the entire short-wave band and maintain good electrical performance of the broadband antenna. [0003] The logarithmic periodic dipole antenna is the basic form of the logarithmic periodic antenna. It is formed by cross-connecting N parallel dipoles with double wires. The parallel dipoles on are of varying lengths and spacing, but remain parallel to each other. Therefore, the logarithmic periodic dipole antenna can also be regarded as a coplanar linear array formed by feeding pa...

Claims

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Application Information

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IPC IPC(8): H01Q11/10H01Q1/08H01Q1/12H01Q1/32
CPCH01Q1/088H01Q1/1242H01Q1/3275H01Q11/10
Inventor 陈竞涛宋永政沈小琪杨海兵陈竞
Owner 河南爱科瑞特电子科技有限公司
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