文章信息/Info

Title:

Research Progress of Tunable Dielectric Metamaterials

作者:

畢科1; 王旭瑩1; 蘭楚文1; 郝亞楠1; 周濟(jì)2

1.北京郵電大學(xué)，北京 100876
2.清華大學(xué)，北京 100084

Author(s):

BI Ke1;  WANG Xuying1;  LAN Chuwen1;  HAO Yanan1;  ZHOU Ji2

1.Beijing University of Posts and Telecommunications, Beijing 100876, China
2.Tsinghua University, Beijing 100084, China

關(guān)鍵詞:

超材料; 可調(diào)介質(zhì)超材料; 磁可調(diào); 電可調(diào); 溫度可調(diào)

Keywords:

metamaterials;  tunable dielectric metamaterials;  magnetically tunable;  electrically tunable;  thermally tunable

DOI:

10.7502/j.issn.1674-3962.2019.01.01

文獻(xiàn)標(biāo)志碼:

A

摘要:

超材料由于具有自然界材料所不具備的一些獨(dú)特的電磁和光學(xué)特性而被廣泛關(guān)注與研究。相比于傳統(tǒng)金屬結(jié)構(gòu)超材料，介質(zhì)超材料不僅可以低損耗的實(shí)現(xiàn)超常電磁特性，而且對外場具有很高的敏感度，其電磁參數(shù)隨磁場、電場、溫度等外場的變化而發(fā)生改變，因而受到了功能材料和信息器件領(lǐng)域研究者的廣泛關(guān)注。本文分別從磁可調(diào)、電可調(diào)和溫度可調(diào)等三個方面介紹可調(diào)介質(zhì)超材料。首先，對于磁可調(diào)介質(zhì)超材料，介紹了基于鐵氧體的多種磁可調(diào)結(jié)構(gòu)的研究進(jìn)展以及鐵磁諧振原理；其次，對于電可調(diào)介質(zhì)超材料，介紹了基于石墨烯、變?nèi)荻�極管和液晶材料的多種電可調(diào)結(jié)構(gòu)的研究進(jìn)展；最后，對于溫度可調(diào)介質(zhì)超材料，介紹了基于二氧化釩、銻化銦和鈦酸鍶材料實(shí)現(xiàn)溫度可調(diào)性能的研究進(jìn)展及其相應(yīng)物理機(jī)制，并展望了可調(diào)介質(zhì)超材料的發(fā)展趨勢和潛在應(yīng)用。

Abstract:

Metamaterials have attracted considerable attention and research owing to their unique electromagnetic and optical properties, which cannot be realized in natural materials. Compared with traditional metal-based metamaterials, dielectric metamaterials have both exotic electromagnetic properties and high sensitivity, whose electromagnetic parameters can be tuned by magnetic field, electric field and temperature, etc. Therefore, they attract much attention from the area of materials and information function devices. This paper summarizes the tuning methods of the tunable dielectric metamaterials from three aspects: magnetically tunable, electrically tunable and thermally tunable. Firstly, for magnetically tunable dielectric metamaterials, both the research progress of various magnetically tunable structures based on ferrite and the relevant ferromagnetic resonance principles are introduced. Secondly, for electrically tunable dielectric metamaterials, the research progress of various electrically tunable structures based on graphene, varactor diode and liquid crystal material is introduced. Finally, for the thermally tunable dielectric metamaterials, the metal-insulator phase transition mechanism based on vanadium dioxide is introduced to realize the thermally tunable performance. Additionally, the research progress and physical mechanism of the thermally tunable performance based on Indium antimonide and Strontium titanate materials are introduced. The development trend and potential applications of tunable dielectric metamaterials are prospected.