Determination of Microwave Transducer and Delay-Line Properties with a Modified Nodal Shift Method

A mathematical analysis of the input impedance to a single-ended delay line is given and the developed formulas are applied to the experimental data to yield: sound velocity and round-trip time in the delay medium, electromechanical coupling coefficient, series resistance, transducer capacity, and the acoustical loss and mismatch which is caused by the electrode structure. A measuring technique similar to the nodal shift method has been introduced.