Flexible, foldable and adjustable liquid spiral antenna

Abstract

The invention provides a flexible, foldable and adjustable liquid spiral antenna comprising a liquid antenna and a feed end, and the liquid antenna is arranged in such a way that a helical structure is formed; the liquid antenna comprises a hollow flexible pipe and electric conduction liquid injected into the flexible pipe, the feed end comprises a micro-strip substrate and a coaxial joint arranged on the micro-strip substrate, and a probe communicated with the electric conduction liquid in the liquid antenna is arranged in the coaxial joint. Effects of application of the flexible, foldable and adjustable liquid spiral antenna are that the antenna is concise and simple in structure; horizontally omnibearing radiation, axial radiation and circumferential radiation at an oblique upper part can be realized due to the helical structure of the liquid antenna; demand for omnibearing radiation in real life can be satisfied, high radiation performance can be realized, manual performance adjustment and control can be achieved, a combination of the hollow flexible pipe and the electric conduction liquid is adopted in the liquid antenna, the antenna is high in flexibility and light in weight, and the antenna is foldable and is convenient to install and store.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a flexible, foldable and adjustable liquid helical antenna. Background technique [0002] In the prior art, common wireless systems include radar, communication, navigation, etc., and their antennas are usually made of metal, or a mixed structure of metal and solid medium. Existing liquid antennas mainly include two categories: [0003] The first is the liquid metal antenna. The performance improvement and technical maturity of this antenna are highly dependent on the research and development of liquid metal materials, and its design method is close to that of conventional metal antennas. At present, the types and quantities of liquid metals at room temperature are limited, and they are still in the basic research stage. [0004] The second type is the non-metallic liquid antenna. This type of antenna mainly uses seawater, salt water, pure water or other organic and inorg...

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Problems solved by technology

[0005] The antennas in the prior art mainly have the following disadvantages: (1) The disadvantages of metal antennas mainly include: the electrical performance is usually not reconfigurable, and cannot or cannot be adjusted during use by the user, the weight is relatively high, and the price is relatively high; ( 2) Seawater antennas using water pumps are bulky and consume a lot of energy; (3) The disadvantages of fabric antennas are mainly due to their weak conductivity, resulting in weak radiation capabilities, low radiation gain, low efficiency, and large energy losses; (4 ) Deformed vibrator antenna and magnetic loop antenna, as well as button antenna and belt buckle antenna, have a common feature of small physical size, limited electrical size, weak radiation directionality, and insufficient concentration of radiated and received radio energy

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