© The Institution of Electrical Engineers
A new single-phase unidirectional transducer utilising the difference between excitation and reflection positions caused by the floating electrodes of open and short metal strips inserted into the interdigital transducer within a half wavelength is described.
References
-
-
1)
-
Rosenfeld, R.C., Brown, R.B., Hartmann, C.S.: `Unidirectional acoustic surface wave filter with 2 dB insertion loss', Proceedings of the IEEE ultrasonics symposium, 1972, p. 40–45.
-
2)
-
Yamanouchi, K., Nyfeller, F., Shibayama, K.: `Low insertion loss acoustic surface wave filter using group-type unidirectional interdigital transducer', Proceedings of the IEEE ultrasonics symposium, 1975, p. 317–321.
-
3)
-
G.L. Matthaei ,
F. Barman ,
E.B. Savage
.
SAW reflecting arrays.
Electron. Lett.
,
556 -
557
-
4)
-
M.F. Lewis
.
Group-type unidirectional SAW devices employing intra-transducer reflector banks.
Electron. Lett.
,
1085 -
1087
-
5)
-
Hartmann, C.S., Wright, P.V., Kansy, R.J., Garber, E.M.: `Analysis of SAW interdigital transducers with internal reflections and the application to the design of single-phase unidirectional transducers', Proceedings of the IEEE ultrasonics symposium, 1982, p. 40–45.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19840672
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