CAJ | 학술논문

随着通信技术的发展，对无限通信设备的集成度有了更高的要求，天线小型化成为目前重要的研究方向。等磁介电材料是一种既具有磁导率又具有介电常数，且磁导率和介电常数几乎相等的材料，使用等磁介电材料作为天线的基板，能有效的减小天线的尺寸，提高带宽，增加辐射效率。铁氧体是由Fe2O3和一种或多种金属氧化物复合而成，具有较高的磁导率和介电常数，由于其同时具有磁特性和介电特性，是一种潜在的等磁介电材料。综述了近几年尖晶石结构磁介电材料的国内外研究进展，着重讨论了掺杂改性对烧结温度、磁导率、介电常数、直流电阻等电磁特性的影响。最后指出目前研究中存在的问题，并展望了该材料在未来发展的方向。
수착통신기술적발전，대무한통신설비적집성도유료경고적요구，천선소형화성위목전중요적연구방향。등자개전재료시일충기구유자도솔우구유개전상수，차자도솔화개전상수궤호상등적재료，사용등자개전재료작위천선적기판，능유효적감소천선적척촌，제고대관，증가복사효솔。철양체시유Fe2O3화일충혹다충금속양화물복합이성，구유교고적자도솔화개전상수，유우기동시구유자특성화개전특성，시일충잠재적등자개전재료。종술료근궤년첨정석결구자개전재료적국내외연구진전，착중토론료참잡개성대소결온도、자도솔、개전상수、직류전조등전자특성적영향。최후지출목전연구중존재적문제，병전망료해재료재미래발전적방향。
With developing of the communication technology, wireless communication systems have created an increased demand for being compact, antenna miniaturization attract much interest these years. Magneto-dielectric materials have almost equal values of real permeability and permittivity. Magneto-dielectric as a substrate for antennas is to miniaturize the size and enhance the bandwidth as well as radiation efficiency. Ferrite is a potential magneto-dielectric which posses both magnetic and dielectric property simultaneously. Ferrites are materials in which Fe2 03 combined with one or more other metal oxides, and have high magnetic permeability and high electrical resistivity, so they can be applied in the high fre- quency. In this letter, the developing process of magneto-dielectric materials is reviewed, the effect of dopants on sintering temperature, permeability, permittivity, DC resistivity are discussed. At last we point out the magneto-dielectric material is a promising material for antenna miniaturization, and the development direction of magneto-dielectric materials.