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Compact Elliptical UWB Antenna for Underwater Wireless Communications.

Adam R H Alhawari¹, Sama F Majeed², Tale Saeidi³

¹Electrical Engineering Department, College of Engineering, Najran University, Najran 55461, Saudi Arabia.

|April 30, 2021

Summary

A new compact elliptical ultra-wideband (UWB) antenna offers improved performance for underwater 5G communications. This novel design provides higher data rates and easier fabrication compared to previous underwater antenna solutions.

Keywords:

5G band UWB antennas bit rate error channel capacity underwater communications

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Area of Science:

Electrical Engineering
Oceanic Engineering
Wireless Communications

Background:

Increasing demand for high-bandwidth underwater communication systems (e.g., Industrial, Scientific, and Medical (ISM), Wireless Local Area Network (WLAN), 5G).
Limitations of existing sonar and ultrasonic technologies for data transfer rates.
Need for compact, efficient, and easily fabricated antennas for underwater applications.

Purpose of the Study:

To design and develop a novel compact elliptical ultra-wideband (UWB) antenna for underwater communications.
To overcome the fabrication complexity and size limitations of previous underwater antenna designs.
To evaluate the antenna's performance in various aquatic environments and assess its suitability for 5G applications.

Main Methods:

Design of a compact elliptical UWB antenna using a polytetrafluoroethylene (PTFE) substrate (dielectric constant 2.55, thickness 0.8 mm).
Antenna resonance tuning from 1.3 to 7.2 GHz.
Investigation of antenna characteristics in fresh-water, seawater, distilled water, and Debye model water.
Evaluation of channel capacity, bit error rate, and data rate.

Main Results:

The proposed antenna exhibits a compact size with easier fabrication compared to existing designs.
Achieved broad bandwidth (1.3–7.2 GHz) with enhanced gain, radiation efficiency, and stability.
Demonstrated suitability for underwater 5G communications through performance evaluations in various water mediums.

Conclusions:

The novel compact elliptical UWB antenna is a promising solution for high-performance underwater communication systems.
The design addresses the need for smaller, more efficient, and easier-to-fabricate antennas.
The antenna's characteristics support advanced applications like underwater 5G.