A Low Cost Optically Transparent and Frequency-Reconfigurable Seawater Antenna

2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI:10.1109/CSRSWTC50769.2020.9372613

Jinxin Li, C. Yin, Pei Xiao, Jun Dong

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Abstract

A low cost optically transparent and frequency-reconfigurable water antenna is proposed in this paper. The proposed water antenna is mainly made of plexiglass (εr = 3.4) and seawater. Thus, the most distinctive feature of this water antenna is that its whole structure is almost completely optically transparent and its cost is very low. Another attractive feature of the proposed antenna is that it can achieve frequency reconfiguration. The water ground is divided into four sections, in which four work states are realized by injecting seawater into different section. Simulation results show that impedance bandwidth for| S11| < -10 dB under four different states is stable at about 22% and the tuning range is from 1.46GHz to 1.64GHz. Besides, radiation patterns and efficiency are able to maintain stability even if at different work states. Due to these features such as high optical transparency, low cost and excellent frequency reconfiguration, the proposed water antenna is very suitable for the integration of various solar cells and solar panel.

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一种低成本光透明、频率可重构的海水天线

提出了一种低成本、光透明、频率可重构的水天线。水天线主要由有机玻璃(εr = 3.4)和海水构成。因此，这种水天线最显著的特点是它的整个结构几乎是完全透明的，而且它的成本非常低。该天线的另一个吸引人的特点是它可以实现频率重构。地下水分为四段，通过在不同的段注入海水实现四种工作状态。仿真结果表明，四种不同状态下| S11| < -10 dB的阻抗带宽稳定在22%左右，调谐范围为1.46GHz ~ 1.64GHz。此外，即使在不同的工作状态下，辐射模式和效率也能保持稳定。该水天线具有光学透明度高、成本低、频率可重构性好等特点，非常适用于各种太阳能电池和太阳能电池板的集成。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)

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