System design for dielectric parameters’ measurement of microwave ceramic materials

A system is designed for dielectric parameterspsila measurement of microwave ceramic materials in which rotary open cavity is applied and the theoretic analysis is presented. With the stepping motor controlled by Single-Chip Microchip, the measurement can be realized automatically. The analysis software based on VEE is programmed, so that the measurement data from Vector Network Analyzer can be calculated and analyzed directly. The result and errors by comparing the method of open and short parallel-plate can evaluate the accuracy and precision of the measurement system.