玻璃陶瓷带状线体击穿与传输特性  

Bulk breakdown and transmission characteristics of glass-ceramic bi-plate transmission line

作　　者：刘毅[1] 谌怡[1] 王卫[1] 夏连胜[1] 章林文[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621999

出　　处：《太赫兹科学与电子信息学报》2014年第1期145-149,共5页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家自然科学基金资助项目(11035004)

摘　　要：为将玻璃陶瓷材料应用于脉冲功率系统以实现紧凑性,探究了2 mm厚玻璃陶瓷样品的体击穿场强EB,并测量了电极宽度W与极板间距d之比(W/d)在0.6至2范围内的玻璃陶瓷带状传输线的特性阻抗。考虑到回路分布参数的影响,实验中通过测量失配情况下传输线主脉冲的脉宽、幅值和反射脉冲的幅值,计算了其特性阻抗,并提出了对近似公式的修正。利用高压脉冲对样品两端加载的方式,在脉宽250 ns的脉冲电压下测量了2 mm厚玻璃陶瓷样品的体击穿场强EB,铌酸盐体系样品EB达到20.2 kV/mm,B2O3体系样品EB大于29.6 kV/mm。For compactness of pulsed power system by using glass-ceramic, bulk breakdown field strength EB of 2 mm glass-ceramic slices is discussed and transmission characteristics of glass-ceramic bi-plate transmission line with the ratio of electrode width and distance between electrodes in the range of 0.6 to 2 are measured. Considering the influence of circuit distribution parameters, characteristic impedance is calculated by measuring pulse width, amplitude and reflected wave amplitude in the case of unmatched load, and a revised formula is presented. Experimental results show that EB of niobate sample and B2O3 are 20.2 kV/mm and above 29.6 kV/mm by measuring EB of 2 mm glass-ceramic sample under pulse voltage with 250 ns pulse width, respectively.

关 键 词：玻璃陶瓷 带状传输线 脉冲波形 特性阻抗 体击穿场强 

分 类 号：TQ170.7[化学工程—硅酸盐工业]