Jpn. J. Appl. Phys. 16 (1977) pp. 413-422  |Next Article|  |Table of Contents|
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Study on Saturation Power in SAW Amplifiers

Chikara Tsuchiya and Seijiro Furukawa

(Received July 13, 1976)

This paper has proved, by using Weinreich relation, that a carrier depletion effect is a main cause for power saturation phenomena in the acoustic bulk-wave (BAW) amplifiers formerly reported. By using this proof, a standard of the saturation power in several kinds of acoustic surface-wave (SAW) amplifiers is derived in a general form, and it is indicated that monolithic SAW amplifiers are better suited for obtaining high saturation power than compound-medium ones. The large signal amplification characteristics of the monolithic SAW amplifier are studied theoretically by using a simple analytical nonlinear theory as well as computer calculations and also experimentally by using CdS SAW amplifiers. Finally, it is proposed that the acoustic wave amplifier could have a higher saturation power under constant current drive than under constant field drive.

URL: http://jjap.jsap.jp/link?JJAP/16/413/
DOI: 10.1143/JJAP.16.413

References | Citing Articles (2)

1. G. S. Kino and H. Matthews: IEEE Spectrum 8 (1971) 22.
2. L. Kuhn, M. L. Dakes, P. F. Heidrich and B. A. Scott: Appl. Phys. Lett. 17 (1970) 265[AIP Scitation].
3. P. H. Carr: IEEE Trans. MTT-17 (1969) 845.
4. K. M. Lakin and H. J. Shaw: IEEE Trans. MTT-17 (1969) 912.
5. K. Yamanouchi and K. Shibayama: J. Appl. Phys. 43 (1972) 856[AIP Scitation].
6. G. Weinreich: Phys. Rev. 107 (1957) 317[APS].
7. D. L. White: J. Appl. Phys. 33 (1962) 2547[CrossRef].
8. T. Ishiguro, I. Uchida, T. Suzuki and Y. Sasaki: IEEE Trans. SU-12 (1965) 9.
9. J. T. Hanlon: Proc. IEEE 53 (1965) 738.
10. K. M. Lakin and H. J. Shaw: IEEE Trans. MTT-17 (1969) 912.
11. S. Furukawa and T. Hata: Jpn. J. Appl. Phys. 8 (1969) 739[JSAP].
12. L. A. Coldren and G. S. Kino: Appl. Phys. Lett. 23 (1973) 117[AIP Scitation].
13. K. M. Lakin, J. H. Collins and P. J. Hagon: Proc. IEEE 57 (1967) 740.
14. C. C. Tseng and R. M. White: J. Appl. Phys. 38 (1967) 4274[AIP Scitation].
15. S. Swierkowski, T. Vanduzer and C. Turner: IEEE Trans. SU-20 (1973) 260.
16. P. K. Tien: Phys. Rev. 171 (1968) 970[APS].
17. W. Wonneberger: Phys. Status Solidi 40 (1970) 127.
18. P. N. Butcher and N. R. Ogg: Phys. Lett. 30A (1969) 220.
19. E. H. Lean and C. G. Powell: Proc. IEEE 58 (1970) 1973.
20. E. L. Adler, E. Bridoux, G. Coussot and E. Dieulesaint: IEEE Trans. SU-20 (1973) 13.