Abstract

A slow-wave microelectromechanical delay line, composed of a chain of coupled resonators, is introduced. The delay line has a bandpass response and, depending on structural details, signal group velocity can be as low as ∼10 m s−1, that is over 100 times smaller than for acoustical SAW or BAW delay lines. Properties of the delay line are analyzed theoretically and the theory is verified in measurements.

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