AZO透明導電膜電磁散射光電參數影響試驗

劉戰合; 王曉璐; 姬金祖; 王菁; 黃沛霖; 周鵬

doi:10.13374/j.issn2095-9389.2018.10.014

AZO透明導電膜電磁散射光電參數影響試驗

doi: 10.13374/j.issn2095-9389.2018.10.014

1) 鄭州航空工業管理學院航空工程學院, 鄭州 450046;
2) 北京航空航天大學航空科學與工程學院, 北京 100191;
3) 鄭州航空工業管理學院電子通信工程學院, 鄭州 450046

基金項目:

鄭州航空工業管理學院青年骨干教師資助計劃資助項目(2017-12)

河南省科技攻關計劃資助項目(182102210444,172102210530)

航空科學基金資助項目(2015ZD55005,2016ZA55001)

國家重點基礎研究計劃(973計劃)資助項目(61320)

詳細信息

中圖分類號: V218;TN011;TN305
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出版歷程
- 收稿日期: 2017-11-03

Influence of photoelectric parameters for AZO transparent conductive films on electromagnetic scattering characteristics

1) School of Aeronautic Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, China;
2) School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;
3) School of Electronics and Communication Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, China

摘要

摘要: 采用常溫鍍膜技術在浮法玻璃表面沉積了不同方塊電阻的氧化鋅鋁(Al-doped zinc oxide,AZO)透明導電膜,建立了透明導電膜的雷達散射截面(radar cross section,RCS)測試和研究方法;提出了基于雷達散射截面均值的相對反射率概念,結合方塊電阻和可見光透過率綜合分析了氧化鋅鋁透明導電膜的電磁散射特性.在微波暗室對不同方塊電阻的氧化鋅鋁透明導電膜進行了測試,得到了10 GHz和15 GHz入射頻率,水平(horizontal horizontal,HH)、垂直(vertical vertical,VV)極化的雷達散射截面曲線;從飛行器座艙隱身角度出發,研究了前向20°和60°角域雷達散射截面曲線分布特點,并分析了雷達散射截面均值影響特性;基于氧化鋅鋁透明導電膜雷達散射截面測試結果,研究了方塊電阻對雷達散射截面相對反射率和可見光透過率的影響規律.研究表明,方塊電阻較低時雷達散射截面曲線分布特性與對應金屬相似,方塊電阻增大時,前向兩個角域內的RCS均值減小,隱身性能減弱,雷達散射截面相對反射率降低而可見光透過率增加,相對反射率降低速率大小與方塊電阻相關,合適的方塊電阻可同時滿足隱身及采光需求.暗室測試結果表明,在滿足座艙可見光透過率前提下,氧化鋅鋁透明導電膜方塊電阻為18~45 Ω時,具有外形隱身作用,方塊電阻18 Ω為最優,對應RCS相對反射率Re_m²和Re_dB分別為84%和0.73 dB.
- 氧化鋅鋁 /
- 薄膜 /
- 電磁散射 /
- 隱身 /
- 雷達散射截面
Abstract: Al-doped zinc oxide (AZO) transparent conductive films with different sheet resistances were deposited on the surface of float glass by a room temperature coating technique. The procedure for radar cross section (RCS) measurements for AZO transparent conductive films was established, and the definition of the relative reflectivity based on the RCS mean value was proposed. The electromagnetic scattering characteristics for the AZO transparent conductive films were analyzed by way of the sheet resistance and visible light transmittance. The AZO films with different sheet resistances were tested in the microwave darkroom and RCS curves for the films were obtained with incident frequencies of 10 GHz and 15 GHz and in the HH and VV polarizations modes. The characteristics of the RCS curve distribution in angular domains of 20° and 60° in the nose direction and the characteristics of RCS mean values were analyzed to study the stealth performance for aircraft cockpit glasses. The influence of the sheet resistance on RCS relative reflectivity and visible light transmittance was studied based on RCS test results from the AZO transparent conductive films. When the sheet resistance was small, the distribution of the RCS curves was similar to that of their corresponding metal. When the sheet resistance increased, the RCS mean values in the angular domains of 20° and 60° in the nose direction decreased and the stealth performance was reduced. In addition, the RCS relative reflectivity decreased and the visible light transmittance increased. The rate of the decrease in the relative reflectivity was related to the sheet resistance. It was determined that an appropriate sheet resistance can meet the needs of stealth and lighting simultaneously. The results achieved from darkroom test also proved that upon meeting the requirement of visible light transmittance for aircraft cockpit glasses, the AZO transparent conductive film could provide shaped stealth performance when the value of sheet resistance was between 18 Ω to 45 Ω. When the sheet resistance was 18 Ω, the best performance of AZO appears with a relative reflectivity, Re_m² of 84% and Re_dB of 0.73 dB.
- Al-doped zinc oxide (AZO) /
- film /
- electromagnetic scattering /
- stealth /
- radar cross section (RCS)

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參考文獻(13)

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