Français
1. Design of volume elastic wave filters
The volume elastic wave filters used in industry since the 1990s derive directly from the first filters based on quartz resonators developed in the 1930s. ; a filter consists of a circuit associating resonators which are used as electrical components exhibiting strong variations in their impedance as a function of frequency. As such, a filter model relies primarily on the ability to realistically model the electrical response of a resonator. However, the trend is no longer towards the design of a simple filter, but increasingly towards the design of a complete module, such as a multiplexer, which requires a whole range of tools as shown in figure
The Ultimate Scientific and Technical Reference
This article is included in
Electronics
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Design of volume elastic wave filters
Transfer function synthesis
Bibliography
Standards and norms
- Standard on Piezoelectricity. - 176-ANSI/IEEE - 1987
Patents
L. Espenschied – Electrical wave filter US 1795204 (1931).
T. Inoe, Y. Myasaka – Piezoelectric composite thin film resonator US 4456850 (1982).
R.C. Ruby, P.P. Merchant – Method of making tunable thin film acoustic resonators US 5873153 (1993).
L. N. Dworsky, L. C. B. Mang – Frequency selective component and method EP 609555 (1993).
...
The Ultimate Scientific and Technical Reference
