天线罩等效电磁参数的自由空间法分析
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- 英文论文题名：Analysis of Equivalent Electromagnetic Parameters of Radome Using Free Space Method
- 论文作者：金志峰 ; 方小星 ; 刘丽丽 ; 曹群生 ; 王毅
- 英文论文作者：Zhifeng Jin ; Xiaoxing Fang ; Lili Liu ; Qunsheng Cao ; Yi Wang ; College of Electronic and Information Engineering ; Nanjing University of Aeronautics and Astronautics
- 年：2017
- 作者机构：南京航空航天大学电子信息工程学院;
- 论文关键词：自由空间法 ; 天线罩 ; 损耗角正切 ; 等效介电常数
- 英文论文关键词：Free space method ; Radome ; Tangential loss angle ; Effective permittivity
- 会议召开时间：2017-05-08
- 会议录名称：2017年全国微波毫米波会议论文集（中册）
- 英文会议录名称：Proceedings of 2017 National Conference on Microwave and Millimeter Waves(NCMMW2017)
- 语种：中文
- 分类号：TN820.81
- 学会代码：ZDWB
- 会议名称：2017年全国微波毫米波会议
- 会议地点：中国浙江杭州
- 主办单位：中国电子学会
- 学会名称：中国电子学会微波分会
- 页数：4
- 文件大小：1160k
- 原文格式：D
- 会议级别：全国
摘要
根据自由空间法介质材料介电常数的测试原理,论文推导了由散射参数得出介质的介电常数和损耗角正切的公式。采用电磁全波仿真软件对工作在X波段的A夹层平板天线罩进行仿真计算,并由此获得的散射参数可以计算求出天线罩的等效介电常数和等效损耗角正切。为了验证自由空间法的计算方法正确性,将平板天线罩和等效介电常数的介质平板的反射透射系数进行比较,两者的幅度和相位基本吻合。另外,通过计算表明,随着频率的增加,天线罩等效介电常数和损耗角正切会略微减小。
According to the theory of free space testing method to measure dielectric permittivity, we have derived the formulas of the dielectric constant and loss angle of the medium by scattering parameters, then the commercial electromagnetic simulation software is used to calculate A sandwich flat radome working in X band,according to the simulated scattering parameters,we calculate the effective permittivity and tangential loss angle of the radome. The validity of the idea is demonstrated by comparing of the simulation scatting matrix of the radome and effective dielectric panel board, they are coincided well. The computational results show that, with the increase of frequency, the effective permittivity and the tangential loss angle of the radome are decreased slightly.
According to the theory of free space testing method to measure dielectric permittivity, we have derived the formulas of the dielectric constant and loss angle of the medium by scattering parameters, then the commercial electromagnetic simulation software is used to calculate A sandwich flat radome working in X band,according to the simulated scattering parameters,we calculate the effective permittivity and tangential loss angle of the radome. The validity of the idea is demonstrated by comparing of the simulation scatting matrix of the radome and effective dielectric panel board, they are coincided well. The computational results show that, with the increase of frequency, the effective permittivity and the tangential loss angle of the radome are decreased slightly.
引文
[1]李欢,刘钧,肖加余,等.雷达天线罩技术及其电性能研究综述[J].材料导报,2012,26(15):48-52.
[2]唐宗熙,张彪.微波介质介电常数和磁导率测试方法[J].计量学报,2007,28(4):383-387.
[3]王娟.自由空间法微波参数测试技术[D].电子科技大学,2013.
[4]颜学源,卢健,高正平.蜂窝结构吸波材料的等效电磁参数[J].磁性材料及器件,2013(1):16-19.
[5]Hashimoto O,Sato A,Hanazawa M,et al.A study on measurement of dielectric constant by free space transmission method at C band[J].Electronics&Communications in Japan,2004,87(10):18–25.
[2]唐宗熙,张彪.微波介质介电常数和磁导率测试方法[J].计量学报,2007,28(4):383-387.
[3]王娟.自由空间法微波参数测试技术[D].电子科技大学,2013.
[4]颜学源,卢健,高正平.蜂窝结构吸波材料的等效电磁参数[J].磁性材料及器件,2013(1):16-19.
[5]Hashimoto O,Sato A,Hanazawa M,et al.A study on measurement of dielectric constant by free space transmission method at C band[J].Electronics&Communications in Japan,2004,87(10):18–25.