基于壓電晶體的聲波激勵(lì)小型化低頻天線技術(shù)研究

扶逸凡; 徐國凱; 朱祥維; 肖紹球; 張靖浩; 鐘玖平; 李婉清; 李君儒; 王宇航; 王子業(yè); 李杜

doi:10.11999/JEIT230914

基于壓電晶體的聲波激勵(lì)小型化低頻天線技術(shù)研究

doi: 10.11999/JEIT230914 cstr: 32379.14.JEIT230914

扶逸凡^{1, 2},
徐國凱³,
朱祥維^{1, 2, ,},
肖紹球⁴,
張靖浩⁵,
鐘玖平⁵,
李婉清⁶,
李君儒^{1, 2},
王宇航^{1, 2},
王子業(yè)³,
李杜^{1, 6,}

1.
南方海洋科學(xué)與工程廣東省實(shí)驗(yàn)室(珠海) 珠海 519082
2.
中山大學(xué)電子與通信工程學(xué)院深圳 518107
3.
中山大學(xué)系統(tǒng)科學(xué)與工程學(xué)院廣州 510006
4.
中山大學(xué)電子與信息工程學(xué)院廣州 510006
5.
中山大學(xué)材料學(xué)院深圳 518107
6.
中山大學(xué)·深圳深圳 518107

基金項(xiàng)目: 國家重點(diǎn)研發(fā)計(jì)劃(2021YFA0716500)，南方海洋科學(xué)與工程廣東省實(shí)驗(yàn)室(珠海)資助項(xiàng)目(SML2021SP408)，深圳市科創(chuàng)委基礎(chǔ)研究重點(diǎn)項(xiàng)目(2020N259)，深圳市科技計(jì)劃(GXWD20201231165807008, 20200830225317001)

詳細(xì)信息

作者簡介:
扶逸凡：男，博士生，研究方向?yàn)樾滦蛯?dǎo)航通信系統(tǒng)設(shè)計(jì)

徐國凱：男，博士生，研究方向?yàn)樾滦碗娦√炀€設(shè)計(jì)

朱祥維：男，博士，教授，研究方向?yàn)閷?dǎo)航與通信技術(shù)

肖紹球：男，博士，教授，研究方向?yàn)殡姶泡椛渑c散射

張靖浩：男，碩士生，研究方向?yàn)槁暡?lì)新原理天線

鐘玖平：男，博士，副教授，研究方向?yàn)楣怆娋w生長

李婉清：女，博士后，研究方向?yàn)槁暡?lì)新原理天線、計(jì)算電磁學(xué)

李君儒：男，博士后，研究方向?yàn)樾滦腕w聲波器件與磁彈耦合

王宇航：男，博士生，研究方向?yàn)樯漕l與智能感知

王子業(yè)：男，博士生，研究方向?yàn)樾滦腕w聲波器件與磁彈耦合

李杜：男，博士，副研究員，研究方向?yàn)槲⒉ㄅc電磁場理論

通訊作者:
朱祥維　 zhuxw666@mail.sysu.edu.cn

中圖分類號(hào): TN822
計(jì)量
- 文章訪問數(shù): 805
- HTML全文瀏覽量: 499
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2023-08-21
- 修回日期: 2023-10-12
- 網(wǎng)絡(luò)出版日期: 2023-10-20
- 刊出日期: 2023-11-28

Research on Acoustically Excited Miniaturized Antenna Technology Based on Piezoelectric Crystal in Low-Frequency

FU Yifan^{1, 2},
XU Guokai³,
ZHU Xiangwei^{1, 2
, ,},
XIAO Shaoqiu⁴,
ZHANG Jinghao⁵,
ZHONG Jiuping⁵,
LI Wanqing⁶,
LI Junru^{1, 2},
WANG Yuhang^{1, 2},
WANG Ziye³,
LI Du^{1, 6
,}

1.
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China
2.
School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, 518107, China
3.
School of System Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
4.
School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510006, China
5.
School of Materials, Sun Yat-sen University, Shenzhen 518107, China
6.
Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China

Funds: The National Key Research and Development Program of China (2021YFA0716500), The Project supported by Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) (SML2021SP408), The Key Basic Research Projects of Shenzhen Science and Technology Commission (2020N259), Shenzhen Science and Technology Program (GXWD20201231165807008, 20200830225317001)

摘要

摘要: 水下信息實(shí)時(shí)傳輸?shù)男枨笈c日俱增，水聲通信和光通信等傳統(tǒng)通信手段在傳輸安全性與穩(wěn)定性方面具有先天難以彌補(bǔ)的劣勢(shì)，且在傳輸速率方面難以形成突破，因此亟待對(duì)新技術(shù)進(jìn)行研究。為解決此問題，近年一些學(xué)者提出一種新機(jī)理、新材料和新工藝的小型化天線，有望實(shí)現(xiàn)低頻天線在尺寸和性能上的跨越，實(shí)現(xiàn)水下通信技術(shù)的變革。該文對(duì)此類聲波激勵(lì)小型化天線進(jìn)行研究。首先闡述并建立了天線輻射機(jī)理及理論模型，分析了不同材料參數(shù)對(duì)天線性能的影響；然后根據(jù)模型參數(shù)設(shè)計(jì)加工了基于鈮酸鋰(LiNbO₃)晶體的壓電型聲波激勵(lì)天線樣機(jī)，實(shí)驗(yàn)結(jié)果表明在40.83 kHz諧振頻率處，與同尺寸單極子天線相比，其接收電壓峰值為后者的22倍，輻射效率為400多倍；最后對(duì)天線進(jìn)行了方位測試和輻射效率計(jì)算。上述結(jié)果表明：基于壓電晶體的聲波激勵(lì)天線技術(shù)在低頻段小型化、機(jī)動(dòng)化水下無線通信設(shè)備的應(yīng)用中具有巨大潛力。
- 水下通信 /
- 聲波激勵(lì)天線 /
- 壓電晶體 /
- 小型化天線
Abstract: The demand for real-time communication of underwater information is rising by the day. Traditional communication technologies, such as underwater acoustic communication and optical communication, have inherent drawbacks in terms of transmission security and stability, and it is difficult to build a transmission rate breakthrough. As a result, it is critical to investigate new technologies. To address this issue, some researchers have proposed a miniaturized antenna with new mechanisms, materials, and technology, which is expected to realize a leap in size and performance of low-frequency antennas and transform underwater communication technology. This type of acoustically excited miniaturized antenna is studied in this paper. First, the radiation mechanism and theoretical model of the antenna are explained and established, and the effect of various material factors on the antenna's performance is investigated. The model parameters are then used to develop and manufacture a piezoelectric acoustically excited antenna prototype based on lithium niobate (LiNbO₃) crystal. The experimental findings reveal that at the resonance frequency of 40.83 kHz, the peak receiving voltage is 22 times that of the monopole antenna, and the radiation efficiency is more than 400 times that of the latter. Finally, the antenna's pattern test and radiation efficiency calculation are performed. The results suggest that acoustically excited antenna technology based on piezoelectric crystals has a lot of potential for low-frequency miniaturized and motorized underwater wireless communication equipment.
- Underwater communication /
- Acoustically excited antenna /
- Piezoelectric crystal /
- Miniaturized antenna

HTML全文

圖 1 壓電型聲波激勵(lì)天線的工作原理

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圖 2 模型示意圖

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圖 3 Z切型，長度方向激勵(lì)下的電勢(shì)(箭頭表示電場方向)和應(yīng)力分布

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圖 4 Y36°切型，長度方向激勵(lì)下的電勢(shì)(箭頭表示電場方向)和應(yīng)力分布

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圖 5 輸入阻抗隨長度和寬度的變化

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圖 6 天線加工

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圖 7 快速掃描測試連接框圖

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圖 8 實(shí)驗(yàn)室測試場景

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圖 9 鎖相放大器的接收信號(hào)幅度

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圖 10 各測試點(diǎn)的接收電壓掃頻圖

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圖 11 接收電壓幅值隨距離的變化

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圖 12 測試的接收電壓歸一化近場方向圖

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圖 13 諧振頻率附近的掃頻特性

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