100 MHz quartz delay line utilizing Rayleigh waves

1 January 1968

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IEEE

Vol. 56 (9) , 1635-1636
https://doi.org/10.1109/proc.1968.6691

Abstract

Results are given of radiation resistance measurements made on 30 electrode pair interdigital transducers deposited on crystalline quartz for the purpose of generating acoustic Rayleigh waves. On the basis of these data, a delay line has been designed exhibiting the following characteristics: minimum insertion loss 9.8 dB, delay 9.6 µs, -3 dB bandwidth 3.5 MHz, input impedance 50 Ω at center frequency of 96.8 MHz, isolation 90 dB, spurious echo rejection > 20 dB.

Keywords

DELAY LINES
ELECTRICAL RESISTANCE MEASUREMENT
ELECTRODES
ACOUSTIC TRANSDUCERS
CRYSTALLIZATION
ACOUSTIC WAVES
INSERTION LOSS
BANDWIDTH
IMPEDANCE
FREQUENCY

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