Tuneable microstrip device controlled by a weak magnetic field using ferromagnetic laminations
Tuneable microstrip device controlled by a weak magnetic field using ferromagnetic laminations
复制标题
使用铁磁叠片由弱磁场控制的可调谐微带器件
DOI：
10.1063/1.372884
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
G. Tanné
中科院分区：
文献类型：
--
作者：
A. Adenot;O. Acher;T. Taffary;P. Quéffélec;G. Tanné
研究了微波器件中层状绝缘体边缘铁磁（LIFE）材料在静场下的特性。LIFE复合材料是通过将物理气相沉积法沉积的铁磁薄膜胶合在聚合物基底上而制造的。0.154 μ m厚的铁磁材料是沉积在12.7 μ m厚的Kapton膜上的非晶CoNiZr合金。根据旋磁模型，当沿易磁化轴沿着外加一个静态场时，旋磁共振频率向高频方向移动。然后，使用低介电常数的衬底将一块LIFE复合材料集成到微带线中。本文给出了微带线传输系数最小值在静磁场作用下的位移。本文介绍了一种微波滤波器的工作原理，它的阻带可在2-6 GHz的范围内由一个小静磁场（<500 Oe）调节，同时还介绍了一个磁开关。
The properties of lamellar insulator ferromagnetic on the edge (LIFE) material in a microwave device under a static field are studied. The LIFE composite is manufactured by gluing sheets of a ferromagnetic thin film deposited by physical vapor deposition on a polymeric substrate. The 0.154-μm-thick ferromagnetic material is an amorphous CoNiZr alloy deposited on a 12.7-μm-thick kapton film. According to gyromagnetic model, when an external static field is applied along the easy axis, the gyromagnetic resonance frequency is shifted towards high frequencies. Then, a piece of LIFE composite was integrated in a microstrip line, using a substrate of low permittivity. The displacement of the minimum of the transmission coefficient in the microstrip line due to a static field applied is presented. The operation of a microwave filter with a stopband tuneable in the 2–6 GHz range by a small static magnetic field (<500 Oe) is demonstrated, as well as a magnetic switch.