Varifocal reflecting surface system based on rib column cable network structure

Abstract

The invention discloses a varifocal reflecting surface system based on a rib column cable network structure, and mainly aims to solve the problems that the focus of a conventional surface cannot be varied and the feed source position is fixed. The varifocal reflecting surface system comprises a feed source (1), a reflecting cable network (2), a support rib rod structure (3), a support cable network (4), vertical pull ropes (5), an annular fixing truss structure (6), a central support rod (7), annular rib joints (9) and a reflecting surface (10), wherein a varifocal sleeve (8) sleeves the outer side of the central support rod (7); the varifocal sleeve (8) is connected with the reflecting cable network (2) and the support cable network (4); the position of the varifocal sleeve (8) is adjusted to change the lengths of the reflecting cable network (2) and the support cable network (4), so that large-scale focus variation that the shape of the reflecting surface (10) transits to a plane from a parabolic plane is achieved. The varifocal reflecting surface system is simple, convenient and flexible in structure, the focus range and the reflection function of the reflecting surface are expanded, and the varifocal reflecting surface system can be applied to convergence or reflection of electromagnetic waves or optical energy of outer space, war ships or the ground.

Description

technical field [0001] The invention belongs to the technical field of communication and electronics, in particular to a variable focal length reflecting surface system, which can be used for converging or reflecting electromagnetic waves or light energy in space, ships or ground. Background technique [0002] Zoom technology is widely used in optical systems. For example, in the lens of a camera, the focal length can be appropriately changed by rotating the focus ring of the lens to achieve a change in the focusing distance, thereby completing clear shooting of objects at different distances. [0003] However, in the large-scale reflector system commonly used in the field of communication and electronic technology, there are few reports on the zoom application. The reasons can be summarized as follows: [0004] For a small-sized reflector system, the zoom range and power are limited, so the application significance is not great. [0005] For large-scale deployable reflect...

AI Technical Summary

Problems solved by technology

However, the large-scale zoom function is still difficult to achieve

[0007] The reflective surface with a fixed solid surface is used. Since the feed source position of the antenna is fixed, it can only receive or reflect the feed source at a fixed position, and it is impossible to share the same reflective surface with multiple feed sources. The utilization efficiency of the reflective surface is low, especially Large-scale solid surface reflector with high cost; the feed source position of the fixed surface reflector antenna is fixed, and its electromagnetic energy or optical energy transmission range is limited, and it is impossible to achieve full coverage of the transmission distance

Images