Short wave logarithm three-dimensional array antenna system

Abstract

The invention discloses a short wave logarithm three-dimensional array antenna system which comprises an antenna main body system, an antenna bearing system and an antenna control system. The antenna main body system comprises an antenna array which is formed by a plurality of logarithm cycle antennas arrayed in an included-angle mode. The antenna bearing system comprises a supporting device used for bearing, rotating and turning the antenna array. The antenna control system comprises a rotating control device which controls a supporting unit to rotate and turn. Based on the great features of the logarithm cycle antennas, a logarithm cycle antenna vertical sector array is designed, so that structure is simple, functions are flexible, the performance index is high, occupied space is low, the frequency band is wide, power is high, gain is high, and 360-degree horizontal rotating and 180-degree vertical turning can be achieved.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a short-wave logarithmic three-dimensional array antenna system with simple structure, flexible functions and high performance index. Background technique [0002] Traditional domestic short-wave large-scale antenna systems are mainly broadband curtain antennas, such as figure 1 shown. The broadband curtain antenna is an antenna array composed of multi-layer full-wave or half-wave dipoles. The horizontal pattern is controlled by the number of antenna elements in each layer, and the vertical pattern is controlled by the number of layers of element antennas and the separation distance of the lowest layer antenna. height control. Its advantages are wide frequency band range, high power and long propagation distance. However, the disadvantages of broadband curtain antennas are also obvious, mainly including: [0003] 1 Large area and harsh terrain requirements; [0004] 2 The main body o...

AI Technical Summary

Problems solved by technology

[0003] 1 Large area and harsh terrain requirements;

[0004] 2 The main body of the antenna is high and the structure volume is large;

[0005] 3 The construction is difficult and the construction period is long;

[0006] 4 Complicated operation and difficult maintenance

[0007] Moreover, broadband curtain antennas are usually imported from abroad. Some domestic manufacturers also have R&D and production on this system, but there is no breakthrough in the core technology. The products produced have low power and narrow coverage. Many, bulky, difficult to install, expensive, and inconvenient to maintain. More importantly, the core technology is controlled by others. Many products cannot be repaired in time due to failures after introduction, and cannot be used.

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