【摘 要】
：
The microwave dielectric properties of ZrO2-SnO2-TiO2 (ZST) system ceramics were studied as a function of the amount of Sb2O5 dopant.With the addition of 0-0.5%
【机 构】
：
School of Electronic Information Engineering
论文部分内容阅读
The microwave dielectric properties of ZrO2-SnO2-TiO2 (ZST) system ceramics were studied as a function of the amount of Sb2O5 dopant.With the addition of 0-0.5% Sb2O5( molar ratio),the substitution of Ti4+ ions with Sb5+ ions decreased the sintering temperature and increased the quality factor Q due to the reduction of oxygen vacancies.When the amount of Sb5+ increased further (above 0.5%),Q was decreased by increasing the electron concentration.When the system doped with 0.5% Sb2O5 was sintered at 1 150 ℃ for 6 h,the relative dielectric constant ε,Qf0,and the temperature coefficient of resonant frequency (TCF) were 38.46,44 500 GHz,20.0 ×10-6/℃,respectively,at 6 GHz.
其他文献
Parallel manipulator is associated with a set of functions defined by its closure constraints. In this paper, using Lie algebra method, we provide a study on th
An intelligent virtual environment is described for training users in the operation of complex engineering systems. After analyzing the original model of virtua
分析了中医推拿中垂直用力、平面用力及旋转用力的推法、按法、滚法、摩法、揉法、擦法、拍法、振法和击法等九种推拿手法的运动学和动力学,得出了要实现各种手法所需要的自
近年来我国房地产市场中出现了凸显区位内涵的城市住区“板块”现象,从概念、内涵、成因等多方面着力剖析了“板块”现象．不仅希望对城市住区空间的区位因素能够重新认识．更期望对我国城市的住宅建设事业和城市空间结构良性发展有所裨益。
The fatigue properties of 400 MPa grade supersteel, plain low carbon steel SS400 and microalloyed steel Q340TM were investigated through tensile-compression fat
An investigation on the neural networks based active vibration control of flexible redundant manipulators was conducted.The smart links of the manipulator were
This paper presented an online quality inspection system based on artificial neural networks. Chromatism classification and edge detection are two difficult pro
选择26例采用饮食控制及口服降糖药物治疗血糖控制不满意的2型糖尿病病例,于晚睡前注射1次中效胰岛素(NPH)治疗,分别于治疗前及治疗后观察空腹血糖(FBG)及糖化血红蛋白(HbA1c
An internetware application is composed by existing individual services, while transaction processing is a key mechanism to make the composition reliable. The e