Performance Analysis for Ring Shaped Antenna in Underwater Radio Communication

An underwater communication antenna is specifically designed for underwater-telemetry applications. It mainly radiates perpendicularly to the planar structure and the ground plane efficiently shields the underwater partials. It is most suitable for integration into clothing because of its various advantages such as low volume, low profile planar configuration and low cost. The antenna has been developed using ring shaped ring on rectangular shaped substrate dimension of about 60 mm X 60 mm. The fleece substrate material has bring used with a permittivity of 1, dielectric constant of 3.2, and thickness of 3 mm. The antenna is designed with number of turns in the ring to increase the gain and good bidirectional radiation characteristics. Computer Simulation Tool (HFSS) is used to simulate the proposed antenna. The analysis of antenna has been performed based on the parameters such as directivity, gain and bandwidth.