论文部分内容阅读
Ba_xSr_(1-x)TiO_3(BST)薄膜具备高的介电可调特性(介电常数在外加电场的作用下会发生改变)和低的介电损耗,这使得BST薄膜成为高速宽带可调微波器件(如相移器、可调带通和带阻滤波器、谐波发生器等)的首选材料,近年来受到世界各国多个研究小组的关注与研究.此研究工作报道采用
The high dielectric tunability of Ba_xSr_ (1-x) TiO_3 (BST) films (the dielectric constant changes with the applied electric field) and the low dielectric loss make the BST film a high-speed broadband tunable microwave The materials of choice for devices such as phase shifters, tunable band-pass filters, band-stop filters, harmonic generators, etc. have attracted the attention of many research groups all over the world in recent years.