Optimized combination detection for microwave ceramic dielectric resonator measurement
- 材料学院－已发表论文 
[中文文摘]微波介质陶瓷材料的介电性能主要由3个参数表示:介电常数、介质损耗和谐振频率温度系数。本文优选组合了3种检测介质谐振器方法:短路型介质谐振器轴向的短路界面测定方便准确,用于测量微波介质陶瓷材料的相对介电常数;开路型平行板与介质谐振器无直接接触,用于测量介质损耗系数;自行研制的旋转开放腔,可同时放置多个样品,加快温度系数的测量速度。3个参数采用3种不同测试法,充分应用了不同测试法各自的优势,满足微波介质陶瓷材料介电常数跨度大、介质损耗低、温度系数快速测量的需求,可得到精确、快速的测试效果。[英文文摘]Dielectric p roperties of microwave dielectric ceramic material are featured in three parameters: comp lex permittivity, dielectric loss and temperature coefficient of resonant frequency. In this paper, a short-circuited resonatormethod is developed to measure the comp lex permittivity of a microwave dielectric material; an open - circuited parallel p late resonatormethod is developed to measure the dielectric loss due to the fact that the dielectric resonator does not contact the open parallel plates physically; the temperature coefficient of the resonant frequency is efficiently measured in a rotary open resonator cavity designed by ourselves. All the parameters are measured p recisely and efficiently by taking the respective advantages of short2circuited and open2circuited methods to satisfy the specific measurement requirements of microwave dielectric material.