Design and Application of Wide-Band SAW Filters Using Slanted Finger Transducers
Summary :
This paper describes the wide-band linear phase surface acoustic wave (SAW) filters composed of slanted finger transducers. To calculate the characteristics of slanted finger transducers, the transducers were divided to multiple channels. In each channel, amplitude and phase performance for the slanted fingers are approximated as that of normal fingers, and admittance matrix of each channel is calculated by applying Smith's equivalent circuit, after that, all the channels are connected in parallel one another. Two filters with 13% and 50% fractional bandwidths were designed using a finger pair weighting technique. Considering the features of the filters composed of the slanted finger transducers, that their pass-band characteristics can be controlled by changing the conditions of propagation path, filters having notches in the pass-band were studied. Fixed and variable notch filters with 50% fractional bandwidth were designed, and characteristics were verified by experiments.
- Publication
- IEICE TRANSACTIONS on transactions Vol.E72-E No.6 pp.751-757
- Publication Date
- 1989/06/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Ultra-sonic Electronics
Authors
Keyword
Latest Issue
Copyrights notice of machine-translated contents
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Cite this
Copy
Shokichiro YOSHIKAWA, Hiromi YATSUDA, Osamu YANO, "Design and Application of Wide-Band SAW Filters Using Slanted Finger Transducers" in IEICE TRANSACTIONS on transactions,
vol. E72-E, no. 6, pp. 751-757, June 1989, doi: .
Abstract: This paper describes the wide-band linear phase surface acoustic wave (SAW) filters composed of slanted finger transducers. To calculate the characteristics of slanted finger transducers, the transducers were divided to multiple channels. In each channel, amplitude and phase performance for the slanted fingers are approximated as that of normal fingers, and admittance matrix of each channel is calculated by applying Smith's equivalent circuit, after that, all the channels are connected in parallel one another. Two filters with 13% and 50% fractional bandwidths were designed using a finger pair weighting technique. Considering the features of the filters composed of the slanted finger transducers, that their pass-band characteristics can be controlled by changing the conditions of propagation path, filters having notches in the pass-band were studied. Fixed and variable notch filters with 50% fractional bandwidth were designed, and characteristics were verified by experiments.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e72-e_6_751/_p
Copy
@ARTICLE{e72-e_6_751,
author={Shokichiro YOSHIKAWA, Hiromi YATSUDA, Osamu YANO, },
journal={IEICE TRANSACTIONS on transactions},
title={Design and Application of Wide-Band SAW Filters Using Slanted Finger Transducers},
year={1989},
volume={E72-E},
number={6},
pages={751-757},
abstract={This paper describes the wide-band linear phase surface acoustic wave (SAW) filters composed of slanted finger transducers. To calculate the characteristics of slanted finger transducers, the transducers were divided to multiple channels. In each channel, amplitude and phase performance for the slanted fingers are approximated as that of normal fingers, and admittance matrix of each channel is calculated by applying Smith's equivalent circuit, after that, all the channels are connected in parallel one another. Two filters with 13% and 50% fractional bandwidths were designed using a finger pair weighting technique. Considering the features of the filters composed of the slanted finger transducers, that their pass-band characteristics can be controlled by changing the conditions of propagation path, filters having notches in the pass-band were studied. Fixed and variable notch filters with 50% fractional bandwidth were designed, and characteristics were verified by experiments.},
keywords={},
doi={},
ISSN={},
month={June},}
Copy
TY - JOUR
TI - Design and Application of Wide-Band SAW Filters Using Slanted Finger Transducers
T2 - IEICE TRANSACTIONS on transactions
SP - 751
EP - 757
AU - Shokichiro YOSHIKAWA
AU - Hiromi YATSUDA
AU - Osamu YANO
PY - 1989
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E72-E
IS - 6
JA - IEICE TRANSACTIONS on transactions
Y1 - June 1989
AB - This paper describes the wide-band linear phase surface acoustic wave (SAW) filters composed of slanted finger transducers. To calculate the characteristics of slanted finger transducers, the transducers were divided to multiple channels. In each channel, amplitude and phase performance for the slanted fingers are approximated as that of normal fingers, and admittance matrix of each channel is calculated by applying Smith's equivalent circuit, after that, all the channels are connected in parallel one another. Two filters with 13% and 50% fractional bandwidths were designed using a finger pair weighting technique. Considering the features of the filters composed of the slanted finger transducers, that their pass-band characteristics can be controlled by changing the conditions of propagation path, filters having notches in the pass-band were studied. Fixed and variable notch filters with 50% fractional bandwidth were designed, and characteristics were verified by experiments.
ER -
English
