Note: Modified π-type Butterworth-Van Dyke model for dual-mode Lamb-wave resonator with precise two-port Y-parameter characterizations

Dual-mode Lamb-waveresonator has become a powerful component forclock reference and sensing applications, enabling efficient compensations oftemperature effects, concurrentmeasurements of multiple environmental parameters, etc. An equivalent circuitmodel for the dual-mode Lamb-waveresonator is indispensable as it provides a means as well as being an effective tool for evaluating device characteristics and to aid the designing of circuitry for theresonators. This could be the first time ever that an efficient equivalent-circuitmodel, i.e., modified π-type Butterworth-Van Dykemodel for dual-mode Lamb-waveresonators is reported. Evaluated byexperiments, thismodel attains noteworthy agreements on both the magnitudes and phases of Y11 and Y21 of themeasurement results. Compared to literature, the proposedmodel is capable of modeling the dualresonances efficiently. Moreover, this work also proves more accurate when viewing the Y-parameters across a wide frequency range. The gained features of thismodel are most beneficial for the analysis of the dual-mode Lamb-waveresonator and also for the designing of circuits.
Source: Review of Scientific Instruments - Category: Physics Authors: Source Type: research