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Controllable surface type small four-element four-arm helical antenna array

A four-arm spiral and antenna array technology, applied in the field of ship navigation and positioning and satellite communication, can solve the problems of difficult miniaturization and complex design, and achieve the effect of enhancing low elevation angle performance, reducing occupied space, and realizing gain

Pending Publication Date: 2021-09-21
SHANGHAI MARITIME UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is not easy to achieve miniaturization while maintaining good radiation performance, and the design is complicated

Method used

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  • Controllable surface type small four-element four-arm helical antenna array
  • Controllable surface type small four-element four-arm helical antenna array
  • Controllable surface type small four-element four-arm helical antenna array

Examples

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Embodiment Construction

[0053] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0054] like figure 1 As shown, it is a controllable surface type small-scale four-arm helical antenna array of the present invention, which includes: a four-arm helical antenna array for transmitting and receiving signals as an element antenna, a controllable reflector support assembly and four A controllable power distribution network.

[0055] The quadrifilar helical antenna array is composed of four self-phase-shifting quadrifilar helical antennas 1, and each quadrifilar helical antenna 1 includes: an adjustable slotted balun 15 with adjustable slot length and a movable slip ring The adjustable impedance transformer 14. The quadrifilar helical antenna 1 is loaded by a ceramic air medium, and its top has an adjustable top load, that is, a movable top feed circuit, for sending and receiving signals. Each adju...

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Abstract

The invention discloses a controllable surface type small four-element four-arm helical antenna array, which comprises a four-arm helical antenna array for transmitting and receiving signals, a controllable reflecting surface bracket assembly and four controllable power division feed networks, whereinthe four-arm helical antenna array comprises four self-phase-shifting four-arm helical antennas, and each four-arm helical antenna comprises an adjustable slotted balun with an adjustable slotted length as an antenna outer conductor and an adjustable impedance converter with a movable slip ring as an antenna inner conductor; the controllable reflecting surface bracket assembly comprises four reflecting surfaces, and the four four-arm helical antennas are respectively mounted on the reflecting surfaces; and each controllable power division feed network is respectively connected with each four-arm helical antenna through a coaxial line. The antenna array has the advantages that the antenna array elements are combined with the controllable reflecting surface bracket, the controllable power division feed network and the like, parameters such as array element spacing, array element working quantity, array element direction, phase difference between array elements and the like can be adjusted according to different requirements, and then characteristic parameters such as impedance, frequency band, size, directional diagram, polarization and the like of the antenna array are adjusted.

Description

technical field [0001] The invention relates to the technical fields of ship navigation and positioning and satellite communication, in particular to a controllable surface-type small-scale four-element four-arm helical antenna array. Background technique [0002] The marine transportation industry is the lifeblood of my country's national economy and an important pillar industry. The development and expansion of the marine transportation industry is an inevitable requirement for improving my country's comprehensive national strength. It is of great significance to safeguarding the country's maritime rights and interests and promoting the sustainable growth of the national economy. However, in recent years, the traditional industries represented by the shipbuilding industry and the shipping industry have been in a downturn. Faced with increasing operating costs, complex ship operations, and increasingly stringent environmental regulations, how to get out of the predicament is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q1/36H01Q15/14
CPCH01Q21/00H01Q1/36H01Q15/14
Inventor 赵建森孔令军王胜正高增云舒伟楠杨兵
Owner SHANGHAI MARITIME UNIVERSITY
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