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Novel high-storage-rate VHF antenna

A new type of storage rate technology, applied to antennas, folded antennas, antenna components and other directions, can solve the problems of ineffective loading, large size and weight, low deployment fundamental frequency, etc., to achieve high application promotion value, high storage rate, and prevent The effect of overshoot

Active Publication Date: 2021-08-06
上海航天空间技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional fixed antennas cannot be effectively mounted on micro-satellite platforms due to their large size and weight. The existing spring-type antennas are characterized by insufficient rigidity and extremely low fundamental frequency.

Method used

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  • Novel high-storage-rate VHF antenna
  • Novel high-storage-rate VHF antenna
  • Novel high-storage-rate VHF antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present invention provides a novel VHF antenna with high storage rate, which includes a base 1 , an antenna radiation arm 2 installed on the base 1 , a self-deploying device 3 , and a supporting device 4 connected with the self-deploying device 3 . The base 1 provides a mounting platform for the antenna, and the base 1 is provided with a crimping groove 11 connecting the antenna radiating arm 2 and the self-deploying device 3. The structure matches the setting. Preferably, the base 1 adopts a metal skin-honeycomb structure, which can simultaneously have two functions of antenna electrical reflection and structural support. The antenna radiating arm 2 is made of elastic metal material, such as beryllium bronze, etc., and can be cylindrical or conical spiral according to the electrical index of the antenna. The self-expanding device 3 includes a plurality of elastic rods 31 made of non-metallic material, and the number of the elastic rods 31 is greater than or equal ...

Embodiment 2

[0032] This embodiment 2 is formed on the basis of embodiment 1. Through the optimized design of the structure of the support device, the structural strength of the support device is improved, and at the same time, the support device can also have a locking function, and the self-expanding device after the disk is pressed and the The antenna is locked in the retracted state, which further simplifies the structure of the device and improves work efficiency. specifically:

[0033] The support device 4 is also provided with a support shaft 42 , and the two ends of the support shaft 42 are respectively connected to the support ring 41 to strengthen the structural strength of the support ring 41 . Preferably, a plurality of support shafts 42 are connected to the support ring 41 , and the plurality of support shafts 42 cross each other to form a network structure or the plurality of support shafts 42 intersect at the inner center of the support ring 41 to form a car wheel-like struc...

Embodiment 3

[0037] This embodiment 3 is formed on the basis of embodiment 1 or embodiment 2. The structural strength of the self-deploying device is improved by optimizing the structure of the self-deploying device. The impact phenomenon reduces the impact of the antenna deployment on the star. specifically:

[0038] The self-expanding device 3 is also provided with a flexible support wire 32, the flexible support wire 32 can be a Kevlar fiber rope, and its flexible support wire 32 is connected between two adjacent elastic rods 31 in a diagonally pulled manner. 31 deformation and deformation. Preferably, both ends of the flexible support wire 32 are respectively connected to the top and bottom ends of two adjacent elastic rods 31, so that the quadrilateral formed by the two elastic rods 31 is changed into two triangles. The flexible support wire 32 effectively improves the structural strength of the cylindrical structure formed by the self-deploying device 3 and ensures the stiffness of...

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Abstract

The invention relates to a novel high-storage-rate VHF antenna in the technical field of spaceflight satellite equipment. The novel high-storage-rate VHF antenna comprises a base, antenna radiation arms, a self-unfolding device and a supporting device. The self-unfolding device comprises elastic rods, the multiple elastic rods are connected to the base at intervals to form a barrel-shaped structure, the supporting device comprises a supporting ring, the supporting ring is connected with the elastic rods and located at the top of the barrel-shaped structure, the antenna radiation arm spirally surrounds the barrel-shaped structure, one end of the antenna radiation arm is connected with the base, and the other end of the antenna radiation arm is connected with the elastic rods or the supporting ring; the elastic rod deforms into a spiral shape to be wound around the surface of the base under the action of external force, and the elastic rod recovers to the original shape after the external force is relieved. The high storage rate of the VHF antenna is realized in a disc pressing manner, and the antenna is suitable for high-gain measurement and control communication antenna systems of different satellite platforms, is especially suitable for being carried by microsatellites, micro-nano satellites and other platforms with limited platforms, and has very high application and popularization values.

Description

technical field [0001] The invention relates to the technical field of aerospace satellite equipment, in particular to a novel high storage rate VHF antenna. Background technique [0002] Space-borne large-size VHF antenna is an important equipment to realize high-gain communication of space-based AIS and VDES systems. Due to the limited carrying capacity, the microsatellite platform has extremely strict requirements on the miniaturization and light weight of the antenna. Traditional fixed antennas cannot be effectively mounted on micro-satellite platforms due to their large size and weight. The existing spring-type antennas are characterized by insufficient stiffness and extremely low fundamental frequency. Spaceborne deployable antenna technology has become a technical bottleneck restricting the development of space-based VDES, and it is also one of the most popular research directions in the international aerospace industry. Carry out large-scale VHF deployable antenna ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/10H01Q1/12H01Q1/00H01Q1/28
CPCH01Q1/10H01Q1/12H01Q1/103H01Q1/005H01Q1/288
Inventor 张健军蔡曦顾军王豪宋玉亭钱元元刘伟亮
Owner 上海航天空间技术有限公司
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