2. Transfer function synthesis
The expected response of a bandpass filter or multiplexer module is generally defined by a template into which the transfer function or, to a lesser extent, the transmission or electrical reflection parameters must fit. Mathematical methods for synthesizing filters from resonant elements, mainly L-C resonators, have been established
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Transfer function synthesis
Resonator sizing
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).
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