等效介电模型在太赫兹有线传输材料开发中的应用

Application of equivalent dielectric model for investigating terahertz wired transmission materials

摘要:

太赫兹频段作为下一代通信技术的重要备选频段，面临随着载波频段提高而信号衰减急剧增加的挑战。太赫兹波的有线传输技术是解决这一问题的有效手段，而对材料介电性能进行精准调控和优化，开发太赫兹频段高性能有线传输材料成为关键。本文通过聚合物材料改性，利用太赫兹时域光谱系统对复合材料的介电特性进行测试，研究了传统介电常数等效模型在太赫兹频段材料开发中的应用。基于太赫兹频段材料的极化特性和响应机制，提出一种预估太赫兹频段复合材料介电常数和损耗角正切的模型和方法，为开发新型太赫兹有线传输材料及其性能调控提供了科学的模型引导。

Abstract:

The terahertz frequency band, as an important alternative for the next generation of communication technologies, faces the challenge of rapid signal attenuation with increasing carrier frequency. Terahertz wired transmission technology is an effective means to address this issue, and precise control and optimization of material dielectric properties is the key to developing high-performance wired transmission materials in the terahertz frequency range. This paper modifies polymer materials and uses a terahertz time-domain spectroscopy system to test the dielectric properties of composite materials, studying the application of traditional dielectric constant equivalent models in the development of terahertz band materials. Based on the polarization characteristics and response mechanisms of terahertz band materials, a model and method for estimating the dielectric constant and loss tangent of composite materials in the terahertz frequency range is proposed, providing a scientific model guidance for the development of new terahertz wired transmission materials and their performance regulation.