Developing a liquid radio antenna

radio antenna
Credit: Pixabay/CC0 Public Domain

Solid, metal antennae have actually been the requirement in a large range of innovations for years, consisting of a wide range of radio interactions and scanning such as radar. Research study into the principle of liquid antennae was talked about in the 1990 s. A liquid antenna would consist of a light-weight and maybe retractable container that might be set up into the proper shape and filled with an appropriate liquid. Water, saltwater, ionic liquids, and other compounds have actually been examined throughout the years.

New operate in the International Journal of Ultra Wideband Communications and Systems provides an unique style of a cone-shaped structure for a liquid antenna that can run efficiently throughout a broad frequency variety. The antenna is compact and expense efficient the group reports along with providing a basic method to reconfigure it for various applications, something that is challenging with a strong metal antenna. Cone-shaped antennae are typically the kind needed for radio-frequency broadcast.

S. Roopa and E. Kiran Kumar of the Siddaganga Institute of Technology Tumakuru, in Karnataka, India, have actually shown evidence of concept for their brand-new kind of liquid antenna utilizing distilled water, seawater, and glycerin as the liquid part. The gadget can attain voltage standing wave ratio of 1 to 2 over a frequency variety of 300 to 850 megahertz, the group reports. They include that the gain attained in speculative outcomes was 2 dBi, which is similar with their simulations in which the gain is around 1.9 dBi. The operating frequency is changed by altering the height of liquid within the cone.

The group concludes that their proposed antenna is basic, low expense, and covers a large range of frequencies, which can be tuned quickly. The radio emission from the antenna is omnidirectional and the truth that it is transparent offers it an extra appealing style function for the advancement of cordless applications. In addition, the antenna is 30 to 40 percent much shorter than its comparable metal antenna.



More info: S. Roopa et al, Analysis of cone-shaped liquid antenna for wide variety of frequencies, International Journal of Ultra Wideband Communications and Systems(2021). DOI: 10.1504/ IJUWBCS.2021119141

Citation: Developing a liquid radio antenna (2021, November 29) recovered 8 December 2021 from https://techxplore.com/news/2021-11- liquid-radio-antenna. html

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