A Unified Approach to the Design of Voltage-Controlled SAW Delay Lines

Hagit Messer; Yehezkel Bar-Ness

doi:10.1109/T-SU.1985.31670

A Unified Approach to the Design of Voltage-Controlled SAW Delay Lines

Hagit Messer, Yehezkel Bar-Ness

Research output: Contribution to journal › Article › peer-review

Abstract

A surface-acoustic-wave (SAW) variable-controlled delay line (VCDL), based on two chirp filters, is discussed and a unified analysis of all such VCDL configurations is presented. The system transfer function and delay formula are derived. Although the most general SAW-VCDL configuration consists of three controlling signals, it is shown that the delay introduced by the system depends only on the frequency of the signal that serves as an input to the mixer between the two chirp filters. The other two controlling signals affect the center frequency of the output spectrum and the system bandwidth, but not the delay. A new configuration of a SAW-VCDL, which uses two identical chirp filters, is then proposed and analyzed for two types of controlling signals. Laboratory experimental results are provided to support the analysis.

Original language	English
Pages (from-to)	815-820
Number of pages	6
Journal	IEEE Transactions on Sonics and Ultrasonics
Volume	32
Issue number	6
DOIs	https://doi.org/10.1109/T-SU.1985.31670
State	Published - Nov 1985
Externally published	Yes

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title = "A Unified Approach to the Design of Voltage-Controlled SAW Delay Lines",

abstract = "A surface-acoustic-wave (SAW) variable-controlled delay line (VCDL), based on two chirp filters, is discussed and a unified analysis of all such VCDL configurations is presented. The system transfer function and delay formula are derived. Although the most general SAW-VCDL configuration consists of three controlling signals, it is shown that the delay introduced by the system depends only on the frequency of the signal that serves as an input to the mixer between the two chirp filters. The other two controlling signals affect the center frequency of the output spectrum and the system bandwidth, but not the delay. A new configuration of a SAW-VCDL, which uses two identical chirp filters, is then proposed and analyzed for two types of controlling signals. Laboratory experimental results are provided to support the analysis.",

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N2 - A surface-acoustic-wave (SAW) variable-controlled delay line (VCDL), based on two chirp filters, is discussed and a unified analysis of all such VCDL configurations is presented. The system transfer function and delay formula are derived. Although the most general SAW-VCDL configuration consists of three controlling signals, it is shown that the delay introduced by the system depends only on the frequency of the signal that serves as an input to the mixer between the two chirp filters. The other two controlling signals affect the center frequency of the output spectrum and the system bandwidth, but not the delay. A new configuration of a SAW-VCDL, which uses two identical chirp filters, is then proposed and analyzed for two types of controlling signals. Laboratory experimental results are provided to support the analysis.

AB - A surface-acoustic-wave (SAW) variable-controlled delay line (VCDL), based on two chirp filters, is discussed and a unified analysis of all such VCDL configurations is presented. The system transfer function and delay formula are derived. Although the most general SAW-VCDL configuration consists of three controlling signals, it is shown that the delay introduced by the system depends only on the frequency of the signal that serves as an input to the mixer between the two chirp filters. The other two controlling signals affect the center frequency of the output spectrum and the system bandwidth, but not the delay. A new configuration of a SAW-VCDL, which uses two identical chirp filters, is then proposed and analyzed for two types of controlling signals. Laboratory experimental results are provided to support the analysis.

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A Unified Approach to the Design of Voltage-Controlled SAW Delay Lines

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