时间延迟对偶极子光导天线空间功率合成影响分析

对偶极子光导天线空间功率合成中时间延迟的影响进行了分析。利用太赫兹时域光谱技术分别获取了34, 500, 1000 μm偶极子光导天线的太赫兹时域光谱。采用数值模拟方法分析时间延迟对空间功率合成的影响。结果发现:在满足空间功率合成时域相干度60%的条件下，两个34, 500, 1000 μm偶极子光导天线阵列的相对最大时间延迟分别为350.7, 467.6, 450.9 fs;三个34, 500, 1000 μm偶极子光导天线阵列的相对最大时间延迟分别为191.1, 250.5, 267.2 fs;四个34, 500, 1000 μm偶极子光导天线阵列的相对最大时间延迟分别为167, 200.4, 217.1 fs。试验结果表明，空间功率合成数值模拟仿真能为偶极子光导天线阵列的物理实验提供重要依据。

Abstract

Time delay effect on optical dipole antenna’s space power synthesis is analyzed. Utilizing terahertz time-domain spectroscopy, we obtain terahertz time-domain spectrogram of 34, 500 and 1000 μm optical dipole antenna separately. The time delay effect on space power synthesis is studied in numerical simulation. The result shows that, in the condition of 60% space power synthesis efficiency, the relatively biggest time delay of two arrays of 34, 500 and 1000 μm optical dipole antenna is 350.7, 467.6, 450.9 fs, respectively, that for three arrays is 191.1, 250.5, 267.2 fs, respectively, and that for four arrays is 167, 2004, 217.1 fs, respectively. The numerical simulation of space power synthesis can provide important basis for physical experiment of optical dipole antenna arrays.

参考文献

[1] 刘盛纲,钟任斌.太赫兹科学技术及其应用的新发展［J］.电子科技大学学报, 2009, 38(5):481-486.(Liu Shenggang, Zhong Renbin. Recent development of terahertz science and technology and its applications. Journal of University of Electronic Science and Technology of China, 2009, 38(5):481-486)

[2] Han P Y, Cho G C, Zhang X C. Time-domain transillumination of biological tissues with terahertz pulses［J］. Opt Lett, 2000, 25(4):242-244.

[3] 姚建铨,迟楠,杨鹏飞,等.太赫兹通信技术的研究与展望［J］.中国激光, 2009, 36(9):2213-2233.(Yao Jianquan, Chi Nan, Yang Pengfei， et al. Study and outlook of terahertz communication technology. Chinese Journal of Lasers, 2009, 36(9):2213-2233)

[4] 邓贤进,王成,林长星,等.0.14 THz超高速无线通信系统实验研究［J］.强激光与粒子束, 2011, 23(6):1430-1432.(Deng Xianjin, Wang Cheng, Lin Changxing, et al. Experimental research on 0.14 THz super high speed wireless communication system. High Power Laser and Particle Beams, 2011, 23(6):1430-1432)

[5] Sheen D M, McMakin D L, Hall T E. Three-dimensional millimeter-wave imaging for concealed weapon detection［J］. IEEE Trans on Microwave Theory and Techniques, 2001, 49(9):1581-1592.

[6] Sanz-Fernandez J J, Cheung R, Goussetis G, et al. Power stored and quality factors in frequency selective surfaces at THz frequencies［J］. IEEE Trans on Antennas and Propagation, 2011, 59(6):2205-2216．

[7] Shimizu N, Nagatsuma T. Photodiode-integrated microstrip antenna array for subterahertz radiation［J］. IEEE Photonics Technology Lett， 2006, 18(6):743-745.

[8] Kirawanich P, Yakura S J, Islam N E. Study of high-power wideband terahertz-pulse generation using integrated high-speed photoconductive semiconductor switches［J］. IEEE Trans on Plasma Science, 2009, 37(1):219-228.

[9] Tiedje H F, Saeedkia D, Nagel M, et al. Optical scanning techniques for characterization of terahertz photoconductive antenna arrays［J］. IEEE Trans on Microwave Theory and Techniques, 2010, 58(7):2040-2045.

[10] Nguyen D T, Simoens F, Ouvrier-Buffet J， et al. Broadband THz uncooled antenna-coupled microbolometer array-electromagnetic design, simulations and measurements［J］. IEEE Trans on Terahertz Science and Technology, 2012, 2(3):299-305.

邓琥, 尚丽平, 张阳, 夏祖学. 时间延迟对偶极子光导天线空间功率合成影响分析[J]. 强激光与粒子束, 2013, 25(6): 1504. Deng Hu, Shang Liping, Zhang Yang, Xia Zuxue. Analysis of time delay effect on space power synthesis of optical dipole antenna[J]. High Power Laser and Particle Beams, 2013, 25(6): 1504.

时间延迟对偶极子光导天线空间功率合成影响分析

关于本站 Cookie 的使用提示

全站搜索

时间延迟对偶极子光导天线空间功率合成影响分析

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索