Broadband delay lines for acoustic surface waves
DOI:
https://doi.org/10.3103/S073527271989110300Abstract
One of the main requirements imposed on delay lines for complex signals (see [1]) is low distortion of the shape of the signals; this allows the frequency transmission bandwidth to be treated as one of the principal parameters of such devices.
In delay lines for the excitation of acoustic surface waves (ASW), the practice is mainly to use opposing-stub transducers which are characterized by a high conversion efficiency and extensive functional capabilities. However, their use at frequencies above 200 MHz is associated with significant technological difficulties.
References
GRUZDEV, A.V.; USOV, V.S. Delay line for digital signals based on acoustic surface waves. Zarubezhnaya Radioelektronika, n.4, p.97-107, 1980.
SEREBRENNIKOV, L.Y.; SHANDAROV, V.M.; SHANDAROV, S.M. Broadband excitation of surface microwaves with an end-face transducer. Pis’ma v ZhTF, v.5, n.5, p.288-290, 1979.
MATTHAEI, G.L.; YOUNG, L.; JONES, E.M.T. Microwave Filters, Impedance-Matching Networks, and Coupling Circuits, Vol. 1. McGraw-Hill, 1964.
